Apron feeder is generally divided into heavy, medium and light three types are commonly used to feed the concentratorApron Belt feeder feeder equipment. Lightweight apron feeder line continuous feeding machinery, suitable for short-distance transport feed size 160mm below the bulk materials. In the mine, processing plant , chemical, cement , building materials and other departments, are widely used from the storage silos to crushing, transportation and other machinery for uniform continuous feeding . Can be installed horizontally , can also be tilted to install , and its maximum inclination of 20 degrees upward . General adaptation temperature below 350 ℃ material bulk density of less than 1200kg/m3, block weight is less than 140kg,. Medium plate feeder lines intermittent feeding machinery, suitable for short-distance transport feed size 400mm below the bulk materials. In the mine, processing plant , chemical, cement , building materials and other departments, are widely used from the storage silos to crushing, transportation and other machinery for uniform intermittent feeding . Can be installed horizontally , can also be tilted to install , and its maximum inclination of 20 degrees upward . General adaptation temperature below 400 ℃ material bulk density of less than 12400kg/m3, block weight is less than 500kg,.Heavy Dewatering screen transport machinery auxiliary equipment , aircraft grade large concentrator crushing plant and cement , building materials and other departments, as to the primary crusher hopper continuous and uniform feeding purposes , can also be used for short- distance transport granularity and a larger proportion of the material . Can be installed horizontally , can also be tilted installation, maximum angle of 12 degrees. In order to avoid a direct hit to the material feeding machine , requiring silo does not appear to unload state.
Various types of plate feeder by transmission mode of the right and left drive type transmission type , material runs along the direction of transmission on the right side of the machine for the right type transmission , and vice versa for left- type transmission .
vibration screen
vibration screen
2013年11月20日星期三
Feeder and mine shaker motor power calculation method introduced
By analyzing the feeder and vibrating screen for mine start-up process , calculate a reasonable motor power data . In order to ensure smooth transportation of ore and unloading process , so that the entire mine production safety and reliability.
As bauxite and limestone mine working environment and the special nature of the ore ore transportation and unloading process, ore often bond , resulting in ore bin blocking stagnation , affecting the normal production of the mine . To this end we add in its process design inertial vibration feeder and mining
Shaker .
Determining inertial vibration feeder and mine shaker motor power parameters during power transmission and calculation reasonable choice is a very important issue, it is not only inertial vibration feeder and mine shaker important condition for normal operation , but also the power consumption of reasonable
Important condition .
In traditional engineering design, inertial vibration feeder and mine shaker motor power to determine the parameters are determined by the empirical estimation . For example, from the east to the source of mine shaker design of a limestone crushing and screening system is expected to treat ore 4000kt / a.
Crushing and screening system process is used 4m3 mining shovel loading , transported to the crushing and screening system of limestone ore particle size of 1000 - Omm, combined with product size requirements , designed with coarse, medium and fine crushing process closed Rd .
We can see feeder and mine shaker in the crushing system using high frequency , the quality of the product plays an important work
Purposes. Feeder and mine shaker motor power is calculated in several ways , some of which belong to the empirical formula calculation methods , they can only choose this type of device power preliminary determination . Generally larger error , if you want to calculate the reasonable power , we must analyze such
Mechanical boot process , in order to obtain a more reasonable motor power data . The result of this calculation in the limestone crushing system transformation process has been verified. Engineering design has been completed , the mine on the feeder and vibrating screen selection, in which the motor power
Sure did not conduct detailed calculations , but empirically based formula to determine the amount of processing and mining vibrating screen feeder motor power parameters , the project was designed to determine the theoretical basis of motor power is not very good . With the level of technology continues to progress, vibrating feeder and
Mine shaker motor power parameters calculation method has also been some improvements. By analyzing the feeder and vibrating screen for mine start-up process , calculate a reasonable motor power data is a relatively well , are more likely to achieve a calculation. The following calculation of this
Method for simple introduction.
l mine shaker feeder and start the process of
Feeder and mine shaker normal quality of work is done by the inertia of the vibrator with eccentric drive in which the body produces a continuous vibration , so that the material is effectively conveying or screening . The core part of the vibrator is a constant speed rotating eccentric masses . When the feeder
And mining shaker is vibrating screen classifier started, the eccentric mass vibrator within the specified time , the still reaches operating speed to achieve normal operation , all of the boot process to complete .
To achieve this the boot process must be in the eccentric mass vibrator plus a maximum torque to overcome the resistance moment vibrator , static torque and acceleration torque to achieve mine shaker feeder and the normal starting , stable operation of the working condition.
Previous literature describes some of the mechanical vibration motor power calculation method ; based on practical experience based on empirical formula more calculation errors. The crushing and screening plant text to mechanical vibration during start to calculate its power , it is more reasonable. Designed by the hospital of Dalian Anshan certain
Limestone crushing and screening system, transformation, loading positions on , PCK1460X1300 hammer crusher under mine shaker is calculated using the above formula to determine the mine shaker motor power parameters , from the fundamental solution to the burning motor phenomenon, to ensure ore transportation and
Unloading process smooth, so that the entire mine production safety and reliability. Of course, mine vibrating screen and vibrating feeder actual work process is also more complex , more sophisticated calculation methods should be carried out a study .
By analyzing the feeder and vibrating screen for mine start-up process , calculate a reasonable motor power data . In order to ensure smooth transportation of ore and unloading process , so that the entire mine production safety and reliability.
As bauxite and limestone mine working environment and the special nature of the ore ore transportation and unloading process, ore often bond , resulting in ore bin blocking stagnation , affecting the normal production of the mine . To this end we add in its process design inertial vibration feeder and mining
Shaker .
Determining inertial vibration feeder and mine shaker motor power parameters during power transmission and calculation reasonable choice is a very important issue, it is not only inertial vibration feeder and mine shaker important condition for normal operation , but also the power consumption of reasonable
Important condition .
In traditional engineering design, inertial vibration feeder and mine shaker motor power to determine the parameters are determined by the empirical estimation . For example, from the east to the source of mine shaker design of a limestone crushing and screening system is expected to treat ore 4000kt / a.
Crushing and screening system process is used 4m3 mining shovel loading , transported to the crushing and screening system of limestone ore particle size of 1000 - Omm, combined with product size requirements , designed with coarse, medium and fine crushing process closed Rd .
We can see feeder and mine shaker in the crushing system using high frequency , the quality of the product plays an important work
Purposes. Feeder and mine shaker motor power is calculated in several ways , some of which belong to the empirical formula calculation methods , they can only choose this type of device power preliminary determination . Generally larger error , if you want to calculate the reasonable power , we must analyze such
Mechanical boot process , in order to obtain a more reasonable motor power data . The result of this calculation in the limestone crushing system transformation process has been verified. Engineering design has been completed , the mine on the feeder and vibrating screen selection, in which the motor power
Sure did not conduct detailed calculations , but empirically based formula to determine the amount of processing and mining vibrating screen feeder motor power parameters , the project was designed to determine the theoretical basis of motor power is not very good . With the level of technology continues to progress, vibrating feeder and
Mine shaker motor power parameters calculation method has also been some improvements. By analyzing the feeder and vibrating screen for mine start-up process , calculate a reasonable motor power data is a relatively well , are more likely to achieve a calculation. The following calculation of this
Method for simple introduction.
l mine shaker feeder and start the process of
Feeder and mine shaker normal quality of work is done by the inertia of the vibrator with eccentric drive in which the body produces a continuous vibration , so that the material is effectively conveying or screening . The core part of the vibrator is a constant speed rotating eccentric masses . When the feeder
And mining shaker is vibrating screen classifier started, the eccentric mass vibrator within the specified time , the still reaches operating speed to achieve normal operation , all of the boot process to complete .
To achieve this the boot process must be in the eccentric mass vibrator plus a maximum torque to overcome the resistance moment vibrator , static torque and acceleration torque to achieve mine shaker feeder and the normal starting , stable operation of the working condition.
Previous literature describes some of the mechanical vibration motor power calculation method ; based on practical experience based on empirical formula more calculation errors. The crushing and screening plant text to mechanical vibration during start to calculate its power , it is more reasonable. Designed by the hospital of Dalian Anshan certain
Limestone crushing and screening system, transformation, loading positions on , PCK1460X1300 hammer crusher under mine shaker is calculated using the above formula to determine the mine shaker motor power parameters , from the fundamental solution to the burning motor phenomenon, to ensure ore transportation and
Unloading process smooth, so that the entire mine production safety and reliability. Of course, mine vibrating screen and vibrating feeder actual work process is also more complex , more sophisticated calculation methods should be carried out a study .
2013年10月30日星期三
Loading grain charter technical information
Grain filling charter can be equipped with conveyors and other equipment used to adjust the height required . Payroll is equipped with suction dust blower , into the grain using
cone screening , the design of the line oscillating screen wheel mechanism . Easy insertion FAO heap , smooth operation, irrigation kits , heavy use and easy maintenance. Some with large low-speed
pitch
.
Shaftless screw conveyor for conveying the sewage treatment plant of its trash rack fine grid spacing of 50mm decontamination machine gate residue and filter press cake and
other materials , environmental protection and crusher plant manufacturer good performance . Transport and easy to clean with full blockade spiral surface , can ensure environmental sanitation and the
delivery of materials from contamination, does not leak,
Large torque , low energy consumption . Because shaftless screw conveyor screw without shaft , material clogging , the discharge opening is not blocked, which can lower speeds ,
smooth transmission, reduce energy consumption. Torque of up to 4000N / m, transmission capacity . Throughput is the same diameter as the shaft screw conveyor traditional
1.5 times. Transported long interval . Single conveyor lengths up to 60 m . According to user needs , the use of multi-level series -mounted , long intervals transportation of
materials . Can flex . Move type shaftless screw conveyor can flex , a multi-purpose machine . Either below the material , but also the material ends
. Using a special lining , the machine can work at high temperatures . Compact , space-saving , beautiful appearance, easy to manipulate , economical and durable
cone screening , the design of the line oscillating screen wheel mechanism . Easy insertion FAO heap , smooth operation, irrigation kits , heavy use and easy maintenance. Some with large low-speed
pitch
.
Shaftless screw conveyor for conveying the sewage treatment plant of its trash rack fine grid spacing of 50mm decontamination machine gate residue and filter press cake and
other materials , environmental protection and crusher plant manufacturer good performance . Transport and easy to clean with full blockade spiral surface , can ensure environmental sanitation and the
delivery of materials from contamination, does not leak,
Large torque , low energy consumption . Because shaftless screw conveyor screw without shaft , material clogging , the discharge opening is not blocked, which can lower speeds ,
smooth transmission, reduce energy consumption. Torque of up to 4000N / m, transmission capacity . Throughput is the same diameter as the shaft screw conveyor traditional
1.5 times. Transported long interval . Single conveyor lengths up to 60 m . According to user needs , the use of multi-level series -mounted , long intervals transportation of
materials . Can flex . Move type shaftless screw conveyor can flex , a multi-purpose machine . Either below the material , but also the material ends
. Using a special lining , the machine can work at high temperatures . Compact , space-saving , beautiful appearance, easy to manipulate , economical and durable
2013年9月22日星期日
Screw conveyor maintenance and installation
I. screw conveyor maintenance :
1, the newly installed equipment should be checked periodically , for example: the newly installed tires prone to loosening must always be checked.
2 , the main components of machinery and Mining vibrating screen equipment , bearings: conveyor bearing shoulder the entire load of the machine , so good lubrication for the bearing life of a great
relationship .
3, check all parts of the machine is working.
4, check the degree of wear of wearing parts , and pay attention to and replacement of worn parts .
5 , the bearing temperature rise , China Vibrating Screen the reasons should be eliminated immediately stopped and checked .
6 , rotating gears in operation should be immediately stopped if the impact of the sound check and eliminate
Two Installation test
1 , the device should be installed on a level concrete foundation with anchor bolts .
2, the installation should pay attention to the vertical and horizontal main body .
3 , after the installation check for loose bolts and various parts of the doors hosts are tightened , if requested to tighten .
4, according to the device configuration of power supply lines and control switches.
5, the inspection is completed , the empty load test, test the normal production
1, the newly installed equipment should be checked periodically , for example: the newly installed tires prone to loosening must always be checked.
2 , the main components of machinery and Mining vibrating screen equipment , bearings: conveyor bearing shoulder the entire load of the machine , so good lubrication for the bearing life of a great
relationship .
3, check all parts of the machine is working.
4, check the degree of wear of wearing parts , and pay attention to and replacement of worn parts .
5 , the bearing temperature rise , China Vibrating Screen the reasons should be eliminated immediately stopped and checked .
6 , rotating gears in operation should be immediately stopped if the impact of the sound check and eliminate
Two Installation test
1 , the device should be installed on a level concrete foundation with anchor bolts .
2, the installation should pay attention to the vertical and horizontal main body .
3 , after the installation check for loose bolts and various parts of the doors hosts are tightened , if requested to tighten .
4, according to the device configuration of power supply lines and control switches.
5, the inspection is completed , the empty load test, test the normal production
2013年9月16日星期一
Trommel feed
Trommel mainly done through the sieve drum rotary screening material , we generally use the feeding according high frequency screen to the following sequence:
1, in the screening machine is in steady state operation , start feeding and discharging devices for feeding trial run ;
2, the normal sealed off after the vibrating screen machine isolation cover material ( normal operation , the sealing cage should always be in a closed position ) ;
3 , check out the feed materials and dust particle size and a seamless situation ;
4 , running half an hour , carefully examined the various components , identify problems and timely treatment.
5 , the working process should always check the operation , if found not operating properly or there is abnormal sound , should be down to check , identify the causes and
troubleshooting.
1, in the screening machine is in steady state operation , start feeding and discharging devices for feeding trial run ;
2, the normal sealed off after the vibrating screen machine isolation cover material ( normal operation , the sealing cage should always be in a closed position ) ;
3 , check out the feed materials and dust particle size and a seamless situation ;
4 , running half an hour , carefully examined the various components , identify problems and timely treatment.
5 , the working process should always check the operation , if found not operating properly or there is abnormal sound , should be down to check , identify the causes and
troubleshooting.
2013年9月8日星期日
On feeder misconceptions which
Misconceptions one : buy a feeder until the feeder should be some kind of test
Test is to assess the characteristics of the feeder and the overall level of the seller is an effective way . But not just screen machinery any test can be carried out . Feeder test must
be based on your specific goals write a written plan, and should be as close to the actual situation of production conditions
Manner. Tests should be produced using the same materials , and transportation of materials in the same way . Feeders should be assessed in a number of performance when feeding
, feeder runtime might beat body surface to screening equipment detect unplanned disturbances feeder operation. Most
The feeding problems and multiple feed , and therefore the test should also simulate multiple feed feeding system . Should understand the manufacturer's device settings
experience, such as : feed several times per hour , or how much material level inside the hopper feed starts again . In addition, you should evaluate how long interval
Time to clean up the feeder . Requirements of certain pigments and additives and hopper feeders with a special plastic or highly polished steel, in order to clean up .
Misconceptions two : Feeders it can be mounted in any position extruder
When installing the feeder to observe equipment operation environment. Vibration must be minimized , into the hopper and feeder vent line ( to prevent system blocking )
must not touch the measurement scales . If the device is surrounded by a lot of people at the event , then the feeder while driving may be affected by
To impact or falling objects on it, this time must understand measurement scale durability and replace damaged measurement scale required fees. Some scales are expensive and
difficult to buy.
Misconceptions three : Decide feeder control system engineers , rather than operatives
Instrumentation control engineers and process engineers responsible for feeder control system selection and planning , and operatives must be involved in the detailed
design of the control system . Engineers often want to control the system with all alarm bells . Speaking from the truth this is a good idea , but the actual operation
Workers prefer the display on the control panel clear logic . Should therefore carefully consider the level of protection screen ( usually there are three levels of protection :
operator, equipment maintenance and engineering ) , or your feeding system may take a long driving time , because its control system
Difficult to debug .
Misconceptions four : weightlessness compensation vibratory feeder is too complicated, is not accurate enough
Updated measurement scales electronic components and better logical calculus makes feeder with screw feeder or belt feeder as accurate . For fragile , brittle products, (
such as chopped glass fiber ) , vibration hopper , sometimes combined with a low-speed rotation of the screw, will be co-
Appropriate choice. 22 test proved vibrating feeder to 330 ~ 760lb / h speed filling pieces of glass for the production of slabs of glass containing 35% of nylon 66 , the
accuracy rate of 0.015% .
Misconceptions five : Only weightlessness compensation feeder supplying the liquid material can be accurately
Liquid and solid except that the density of the liquid is kept constant at a certain temperature , its mobility hardly changed . A variable capacity pump almost to the
accuracy of ± 1% viscosity 0.5cp ~ 100000cp send any liquid , piston or diaphragm in the pumped liquid
Between 0.5cp ~ 100cp , and the gear pump pumping high viscosity liquids 100000cp . If you want to monitor the liquid feed rate , you can use a Coriolis meter or install a silo
integration into measurement scales . The former measure the fluid interference , which indicates real progress
Feed rate and feed rate exceeded the target range alarm . However, the feedback loop fluid flow control problems are usually caused by problems than it solves more than .
Misconceptions six : Feeders brand than the local agency is more important
Can not be ignored by the seller 's agent network to provide reliable technical support. To minimize downtime , you must have a good local agent , he can be your need to
provide feeder manufacturer. Most feeder equipment manufacturers and sells a variety of common
Equipment dealers cooperation . If your equipment dealer tells you his home phone number , and when you need help , he will work with the manufacturer's headquarters is well
connected , then you should continue to work with him . Additionally, this agent should also have adequate professional skills,
When your maintenance staff needs help, he can go to the plant site to help you solve the problem.
Misconceptions seven : hopper feeders than side feed feeder money
Typical side feed feeder hopper solids than the average multi- feeder several advantages , including durable structure , relatively high torque screw , screw and fully
engaged to transmit torque metal gear rather than nylon gears. When the hopper feeder is used as a side feed feeder
When running just three to four days will be damaged . Therefore, if the feeder vendors said his hopper feeder can be used for side feed feeder, you should ask him to issue a
feeder performance and service life of a written guarantee .
Misconceptions eight : volumetric feeder and feeder loss compensation accuracy can not be compared
A match with the material volumetric feeder can have the same weight feeder performance , even more than the weight of mismatched feeder better performance. Loss
compensation only control and testing a feeder mechanism , if the feeder can continuously the material from
Feed hopper to the conveying screw or belt , then weight loss compensation can not overcome the feeder design flaws. Each weight loss should be compensated feeder capacity can
run to track the actual materials over time to lose weight . When evaluating the different feeding systems
, If feeder with screw feeder , in addition to weight loss compensation control to reduce system instability , but also should be examined under way in the volume of each feeder
accuracy to determine its inherent accuracy. Field control device performance can be improved to a certain extent , but
The design error was in need of rehabilitation equipment, and even need to replace another type feeder .
Misconceptions nine : If the display indicates that the feeder feeder was running accuracy of ± 1%, then everything is normal
It should be understood feeder feed rate How to calculate . The rate of the display period of time within the hopper , the average weight loss . The longer the interval ,
the displayed speed value, the more able to hide any short-term fluctuations. When the feeder to 600rpm running, even though the number of
According to the collector ignores the short-term fluctuations , but you can not ignore this.
Feeders determine whether the normal operation of the simplest way is to observe the drive command . Show driving directions screw feeder motor speed or belt feeder belt
speed. If the driver instructions fluctuations ± 5%, while the display shows the feeder feed rate of ± 1%,
Then the feed rate of the logical calculus will hide the short-term fluctuations.
Test is to assess the characteristics of the feeder and the overall level of the seller is an effective way . But not just screen machinery any test can be carried out . Feeder test must
be based on your specific goals write a written plan, and should be as close to the actual situation of production conditions
Manner. Tests should be produced using the same materials , and transportation of materials in the same way . Feeders should be assessed in a number of performance when feeding
, feeder runtime might beat body surface to screening equipment detect unplanned disturbances feeder operation. Most
The feeding problems and multiple feed , and therefore the test should also simulate multiple feed feeding system . Should understand the manufacturer's device settings
experience, such as : feed several times per hour , or how much material level inside the hopper feed starts again . In addition, you should evaluate how long interval
Time to clean up the feeder . Requirements of certain pigments and additives and hopper feeders with a special plastic or highly polished steel, in order to clean up .
Misconceptions two : Feeders it can be mounted in any position extruder
When installing the feeder to observe equipment operation environment. Vibration must be minimized , into the hopper and feeder vent line ( to prevent system blocking )
must not touch the measurement scales . If the device is surrounded by a lot of people at the event , then the feeder while driving may be affected by
To impact or falling objects on it, this time must understand measurement scale durability and replace damaged measurement scale required fees. Some scales are expensive and
difficult to buy.
Misconceptions three : Decide feeder control system engineers , rather than operatives
Instrumentation control engineers and process engineers responsible for feeder control system selection and planning , and operatives must be involved in the detailed
design of the control system . Engineers often want to control the system with all alarm bells . Speaking from the truth this is a good idea , but the actual operation
Workers prefer the display on the control panel clear logic . Should therefore carefully consider the level of protection screen ( usually there are three levels of protection :
operator, equipment maintenance and engineering ) , or your feeding system may take a long driving time , because its control system
Difficult to debug .
Misconceptions four : weightlessness compensation vibratory feeder is too complicated, is not accurate enough
Updated measurement scales electronic components and better logical calculus makes feeder with screw feeder or belt feeder as accurate . For fragile , brittle products, (
such as chopped glass fiber ) , vibration hopper , sometimes combined with a low-speed rotation of the screw, will be co-
Appropriate choice. 22 test proved vibrating feeder to 330 ~ 760lb / h speed filling pieces of glass for the production of slabs of glass containing 35% of nylon 66 , the
accuracy rate of 0.015% .
Misconceptions five : Only weightlessness compensation feeder supplying the liquid material can be accurately
Liquid and solid except that the density of the liquid is kept constant at a certain temperature , its mobility hardly changed . A variable capacity pump almost to the
accuracy of ± 1% viscosity 0.5cp ~ 100000cp send any liquid , piston or diaphragm in the pumped liquid
Between 0.5cp ~ 100cp , and the gear pump pumping high viscosity liquids 100000cp . If you want to monitor the liquid feed rate , you can use a Coriolis meter or install a silo
integration into measurement scales . The former measure the fluid interference , which indicates real progress
Feed rate and feed rate exceeded the target range alarm . However, the feedback loop fluid flow control problems are usually caused by problems than it solves more than .
Misconceptions six : Feeders brand than the local agency is more important
Can not be ignored by the seller 's agent network to provide reliable technical support. To minimize downtime , you must have a good local agent , he can be your need to
provide feeder manufacturer. Most feeder equipment manufacturers and sells a variety of common
Equipment dealers cooperation . If your equipment dealer tells you his home phone number , and when you need help , he will work with the manufacturer's headquarters is well
connected , then you should continue to work with him . Additionally, this agent should also have adequate professional skills,
When your maintenance staff needs help, he can go to the plant site to help you solve the problem.
Misconceptions seven : hopper feeders than side feed feeder money
Typical side feed feeder hopper solids than the average multi- feeder several advantages , including durable structure , relatively high torque screw , screw and fully
engaged to transmit torque metal gear rather than nylon gears. When the hopper feeder is used as a side feed feeder
When running just three to four days will be damaged . Therefore, if the feeder vendors said his hopper feeder can be used for side feed feeder, you should ask him to issue a
feeder performance and service life of a written guarantee .
Misconceptions eight : volumetric feeder and feeder loss compensation accuracy can not be compared
A match with the material volumetric feeder can have the same weight feeder performance , even more than the weight of mismatched feeder better performance. Loss
compensation only control and testing a feeder mechanism , if the feeder can continuously the material from
Feed hopper to the conveying screw or belt , then weight loss compensation can not overcome the feeder design flaws. Each weight loss should be compensated feeder capacity can
run to track the actual materials over time to lose weight . When evaluating the different feeding systems
, If feeder with screw feeder , in addition to weight loss compensation control to reduce system instability , but also should be examined under way in the volume of each feeder
accuracy to determine its inherent accuracy. Field control device performance can be improved to a certain extent , but
The design error was in need of rehabilitation equipment, and even need to replace another type feeder .
Misconceptions nine : If the display indicates that the feeder feeder was running accuracy of ± 1%, then everything is normal
It should be understood feeder feed rate How to calculate . The rate of the display period of time within the hopper , the average weight loss . The longer the interval ,
the displayed speed value, the more able to hide any short-term fluctuations. When the feeder to 600rpm running, even though the number of
According to the collector ignores the short-term fluctuations , but you can not ignore this.
Feeders determine whether the normal operation of the simplest way is to observe the drive command . Show driving directions screw feeder motor speed or belt feeder belt
speed. If the driver instructions fluctuations ± 5%, while the display shows the feeder feed rate of ± 1%,
Then the feed rate of the logical calculus will hide the short-term fluctuations.
2013年9月1日星期日
Learn belt conveyor machinery safety during operation
Belt conveyor machinery safety procedure is as follows:
1 Several mechanical conveyor running series , we should begin the discharge end , the sequence starts. All normal operation only after the feeding .
2 Run the tape deviation phenomenon occurs , you should stop adjustment shall not be reluctant to use , so as not to wear edges and increase the load .
3 conveyor prohibit pedestrians or by people .
4 working environment and sent the material temperature not higher Coal vibrating screen than 50 ℃ and below -10 ℃. Shall not be transported with a pH of oils and organic solvents constituent
materials.
5 conveyor motor must be well insulated . Mobile conveyor cables do not Luanla and dragging . Motor must be grounded reliably .
6 must be stopped before stopping feeding, unloading and other material on the belt to make deposits before parking .
7 belt conveyor installation method should be required to install a fixed basis. Mobile conveyor official before running wheels should live or with a triangular wedge brakes
stopped . In order to avoid the work place to move around. How conveyor parallel Mobile crushing plant operation, the machine and the machine between the machine and the wall of the
Should be one meter between the channels.
8 belt slipping a hand to pull the belt is strictly prohibited , so as to avoid accidents.
9 -load belt conveyor machinery should start . Other operating normally before feeding . Prohibits driving after the first feeding .
10 transport machinery must be inspected prior to use part of the operation , the tape fastener and bearing device is normal , protective equipment is complete. Tape tensioner
degrees required before starting to adjust to the appropriate level.
1 Several mechanical conveyor running series , we should begin the discharge end , the sequence starts. All normal operation only after the feeding .
2 Run the tape deviation phenomenon occurs , you should stop adjustment shall not be reluctant to use , so as not to wear edges and increase the load .
3 conveyor prohibit pedestrians or by people .
4 working environment and sent the material temperature not higher Coal vibrating screen than 50 ℃ and below -10 ℃. Shall not be transported with a pH of oils and organic solvents constituent
materials.
5 conveyor motor must be well insulated . Mobile conveyor cables do not Luanla and dragging . Motor must be grounded reliably .
6 must be stopped before stopping feeding, unloading and other material on the belt to make deposits before parking .
7 belt conveyor installation method should be required to install a fixed basis. Mobile conveyor official before running wheels should live or with a triangular wedge brakes
stopped . In order to avoid the work place to move around. How conveyor parallel Mobile crushing plant operation, the machine and the machine between the machine and the wall of the
Should be one meter between the channels.
8 belt slipping a hand to pull the belt is strictly prohibited , so as to avoid accidents.
9 -load belt conveyor machinery should start . Other operating normally before feeding . Prohibits driving after the first feeding .
10 transport machinery must be inspected prior to use part of the operation , the tape fastener and bearing device is normal , protective equipment is complete. Tape tensioner
degrees required before starting to adjust to the appropriate level.
Vibration hammers enterprise must first be inspired
In recent years, demand for our standard rate of 5 % -10 % in 2008, standard parts demand is 313 million t, dewatering screen an increase of 9.5 %, of which the automotive industry is the largest
user , followed by the maintenance of industrial markets and the construction industry, and then electronic bucket elevator industry. Countries in order to stab
Stimulated domestic demand, introduced a number of policies to support the manufacturing industry , the government 4 trillion yuan investment plan, focus on investment in
railways , highways, airports , high frequency screen power grids , affordable housing and infrastructure, was undoubtedly the most direct benefit from the equipment manufacturing industry , which
will greatly stimulate the demand for standard parts . Specifically
16-30mm size ≥ 10.9 grade high strength standard parts demand will surge. Further development of the aviation industry demand for standard parts also played a strong supporting
role. Standard fastener enterprises to take advantage of the potential development of the Internet , innovative marketing model . "We must first sharpen his tools bucket machine
" , business
Subject of development , transfer vertical bucket elevator model upgrades, we talk about ? Easier said than done ! If the transformation fails will lose everything , but do not
upgrade , enterprise development sooner or later come to an end . 2012 , standard parts enterprises must first excited vibration of vertical vibration hoist spirit , Kennedy
Support the development of the road, to " sophisticated, special , special " intensive production service-oriented business transformation .
user , followed by the maintenance of industrial markets and the construction industry, and then electronic bucket elevator industry. Countries in order to stab
Stimulated domestic demand, introduced a number of policies to support the manufacturing industry , the government 4 trillion yuan investment plan, focus on investment in
railways , highways, airports , high frequency screen power grids , affordable housing and infrastructure, was undoubtedly the most direct benefit from the equipment manufacturing industry , which
will greatly stimulate the demand for standard parts . Specifically
16-30mm size ≥ 10.9 grade high strength standard parts demand will surge. Further development of the aviation industry demand for standard parts also played a strong supporting
role. Standard fastener enterprises to take advantage of the potential development of the Internet , innovative marketing model . "We must first sharpen his tools bucket machine
" , business
Subject of development , transfer vertical bucket elevator model upgrades, we talk about ? Easier said than done ! If the transformation fails will lose everything , but do not
upgrade , enterprise development sooner or later come to an end . 2012 , standard parts enterprises must first excited vibration of vertical vibration hoist spirit , Kennedy
Support the development of the road, to " sophisticated, special , special " intensive production service-oriented business transformation .
2013年8月29日星期四
Large jaw crusher how to change bearings
We must first bearing, journal , and lubricant oil collector piping clean . Then the main bearing, connecting rod , etc. assembled. Equipment belt when assembled . It should be
slightly higher than normal operation loose a little . Test , first start pumps, oil and make a little when compared with the normal operation
Larger. If the testing process did not show significantly increased and the current oil temperature significantly increased the phenomenon , it shows successful repair , the
equipment can be put into normal use
Keywords: crushing equipment main bearing
Bearing lined mostly by Babbit made large jaw crusher main bearing mostly used off-type sliding bearings. This bearing scraping the higher technical requirements , poor or
scraping gap adjustment improperly research watts or Burnt accidents. Summed up a good scraping for tile
Research and gap adjustment methods , are presented below for your reference .
An old tile removal should be done
A measure bearing joints watt mouth old gasket thickness.
2 measuring spindle levelness .
Whether there is rust , bumps and other defects, three double-check whether the spindle is smooth. If any should try to eliminate .
4 measuring headspace old bush , and the axial clearance backlash .
2 detection Watt back with the contact between the bearing seat
Required scraping the tile back good, according to "JB/T5000.10-1998 heavy machinery assembly general technical conditions " requirement . To reach the technical requirements .
Otherwise, the equipment operation between the bearing and the bearing prone reverse slip or turn . To prevent this phenomenon, a
Are used as pins, sleeve positioning mode , as described herein is a locating pin main bearing .
3 bearing scraping the technical requirements of a
Spindle scraping should meet the following specifications. According to "JB/T5000.10-1998 heavy machinery assembly general technical conditions " in the requirements.
But also with a certain gap , a spindle and bearing both even and smooth touch . The upper and lower spindle bearing and the contact angle formed at a portion other than the oil
wedge and the wedge from tile mouth began a crusher manufacturer gradual transition from maximum to zero .
Bearing pressure will increase , two contact angle is not too large nor too small. Contact angle is too small. Serious cause bush produces large deformation , accelerated wear
and shorten life ; contact angle is too large , it will affect the film formation , destruction of lubrication. Therefore, does not affect the bearing pressure
The conditions set , the smaller the contact angle the better .
The more detailed, the more uniform the better. 3 within the contact angle the more actual contact spots .
4 main bearing scraping
Both on the research carried out after the use of bore scraper scraping . Scraping the beginning of the sequence is to first scraped tile, scraping shaft bearing should be the
basis . Beginning again scraping tile, then fine scraping the entire tile, scraping side clearance and final point of the oil . Bush can generally be divided into rough scraping
scraping . Scraping and scraping three fine finishing process .
Scraping should be used to take the first re-light , scraping heavy to stay light , scratch big to stay small principle. Scraping bush when only the contact point , the contact
angle meet the technical requirements, but also to make the top . Side clearance to achieve the specified value.
Fine scraping an upper and lower watt thick.
Then coated on the spindle display agents ( such as red lead powder , red Qian oil ) mounted on the spindle bearings, the first of two under the tile installed in the bearing
housing . Positive and negative direction of rotation to two or three times , and then remove the spindle , bearing colored according to the distribution point for rough
scraping . Rough scraping order
Segment can be positive rake angle scraping . Hand can head a few times heavier , multi- scrape some metal in order to accelerate the progress of scraping . When the contact
area of 50% . These fine fine scraping scraping scraping stage can be a small rake angle , the knife should be bearing centerline trace a 45 ° angle , scraping can not use
excessive force , anti-
Knife ended traces generated ripples. Scraping knife to trace around the cross , until the contact angle of contact spots within the uniform clouds , horizontal spindle error in
0.2mm / m far between . On tile thickness scraping methods and requirements under the tile of coarse and fine scraping method requires basically the same. The difference of the
Tile placed on top of the spindle on the research carried out .
Two upper and lower watt fine scraping
Contact pattern is still large, the upper and lower watts through thick and thin after scraping . Needed further refinements . First, the upper and lower joints by adding tile
tile mouth gasket, the spindle , the tile locating pin installed, tighten the screws , so that the direction of rotation of the spindle in the normal running laps , and then
removed on
Tile , hanging spindle go for lapping work . Scraping , it is best to use negative rake angle scraping until the contact surface of the contact pattern meets the technical
requirements so far
3 scraping side clearance and save oil spots
Should be kept scraping side clearance and oil spots . Scraping side of the gap , the ends should be set aside part of the cone crusher, to prevent the outflow of oil from the
tile sides , thus ensuring bearing lubrication. W contacts between local and non- contact portion , should make a gradual transition ; not have clear boundaries. Then the shaft
Watt arc contact point scraping of the oil , the oil remaining in point is used to store oil storage oil spots can be round or flat , depth is generally 0.30.5mm, fine scraping
is completed . Area of 1530mm2, should not exceed the total area of the oil scraping the contact point on the arc , save points are used to store lubricant oil
The existence of oil spots can be round or flat , depth is generally 0.30.5mm area of 1530mm2, should not exceed a total area of contact with the arc of 1/5.
slightly higher than normal operation loose a little . Test , first start pumps, oil and make a little when compared with the normal operation
Larger. If the testing process did not show significantly increased and the current oil temperature significantly increased the phenomenon , it shows successful repair , the
equipment can be put into normal use
Keywords: crushing equipment main bearing
Bearing lined mostly by Babbit made large jaw crusher main bearing mostly used off-type sliding bearings. This bearing scraping the higher technical requirements , poor or
scraping gap adjustment improperly research watts or Burnt accidents. Summed up a good scraping for tile
Research and gap adjustment methods , are presented below for your reference .
An old tile removal should be done
A measure bearing joints watt mouth old gasket thickness.
2 measuring spindle levelness .
Whether there is rust , bumps and other defects, three double-check whether the spindle is smooth. If any should try to eliminate .
4 measuring headspace old bush , and the axial clearance backlash .
2 detection Watt back with the contact between the bearing seat
Required scraping the tile back good, according to "JB/T5000.10-1998 heavy machinery assembly general technical conditions " requirement . To reach the technical requirements .
Otherwise, the equipment operation between the bearing and the bearing prone reverse slip or turn . To prevent this phenomenon, a
Are used as pins, sleeve positioning mode , as described herein is a locating pin main bearing .
3 bearing scraping the technical requirements of a
Spindle scraping should meet the following specifications. According to "JB/T5000.10-1998 heavy machinery assembly general technical conditions " in the requirements.
But also with a certain gap , a spindle and bearing both even and smooth touch . The upper and lower spindle bearing and the contact angle formed at a portion other than the oil
wedge and the wedge from tile mouth began a crusher manufacturer gradual transition from maximum to zero .
Bearing pressure will increase , two contact angle is not too large nor too small. Contact angle is too small. Serious cause bush produces large deformation , accelerated wear
and shorten life ; contact angle is too large , it will affect the film formation , destruction of lubrication. Therefore, does not affect the bearing pressure
The conditions set , the smaller the contact angle the better .
The more detailed, the more uniform the better. 3 within the contact angle the more actual contact spots .
4 main bearing scraping
Both on the research carried out after the use of bore scraper scraping . Scraping the beginning of the sequence is to first scraped tile, scraping shaft bearing should be the
basis . Beginning again scraping tile, then fine scraping the entire tile, scraping side clearance and final point of the oil . Bush can generally be divided into rough scraping
scraping . Scraping and scraping three fine finishing process .
Scraping should be used to take the first re-light , scraping heavy to stay light , scratch big to stay small principle. Scraping bush when only the contact point , the contact
angle meet the technical requirements, but also to make the top . Side clearance to achieve the specified value.
Fine scraping an upper and lower watt thick.
Then coated on the spindle display agents ( such as red lead powder , red Qian oil ) mounted on the spindle bearings, the first of two under the tile installed in the bearing
housing . Positive and negative direction of rotation to two or three times , and then remove the spindle , bearing colored according to the distribution point for rough
scraping . Rough scraping order
Segment can be positive rake angle scraping . Hand can head a few times heavier , multi- scrape some metal in order to accelerate the progress of scraping . When the contact
area of 50% . These fine fine scraping scraping scraping stage can be a small rake angle , the knife should be bearing centerline trace a 45 ° angle , scraping can not use
excessive force , anti-
Knife ended traces generated ripples. Scraping knife to trace around the cross , until the contact angle of contact spots within the uniform clouds , horizontal spindle error in
0.2mm / m far between . On tile thickness scraping methods and requirements under the tile of coarse and fine scraping method requires basically the same. The difference of the
Tile placed on top of the spindle on the research carried out .
Two upper and lower watt fine scraping
Contact pattern is still large, the upper and lower watts through thick and thin after scraping . Needed further refinements . First, the upper and lower joints by adding tile
tile mouth gasket, the spindle , the tile locating pin installed, tighten the screws , so that the direction of rotation of the spindle in the normal running laps , and then
removed on
Tile , hanging spindle go for lapping work . Scraping , it is best to use negative rake angle scraping until the contact surface of the contact pattern meets the technical
requirements so far
3 scraping side clearance and save oil spots
Should be kept scraping side clearance and oil spots . Scraping side of the gap , the ends should be set aside part of the cone crusher, to prevent the outflow of oil from the
tile sides , thus ensuring bearing lubrication. W contacts between local and non- contact portion , should make a gradual transition ; not have clear boundaries. Then the shaft
Watt arc contact point scraping of the oil , the oil remaining in point is used to store oil storage oil spots can be round or flat , depth is generally 0.30.5mm, fine scraping
is completed . Area of 1530mm2, should not exceed the total area of the oil scraping the contact point on the arc , save points are used to store lubricant oil
The existence of oil spots can be round or flat , depth is generally 0.30.5mm area of 1530mm2, should not exceed a total area of contact with the arc of 1/5.
2013年8月15日星期四
To explain to start the process of screening machine
It is understood that the process of screening machine is starting up work from stationary eccentric mass angular velocity w, then the screening machine with angular
velocity w for stable operation. Therefore, when starting screening machine, maximum torque output of the motor. Since mc ground is relatively small, approximate calculation can
be ignored. Load characteristics and m is not a constant value, the vibration of a cycle, when the mass of the vibration movement from the bottom up, the motor will be greater
energy output; down by the quality of the vibration movement, it will emit energy.
In this case, the supply current will be affected. However, because of the rotary member vibrator has a large flywheel effect, the load on the motor tends to be smooth
and uniform. Taking into account this factor, when starting the sieve maximum static torque must be multiplied by a coefficient K. Generally does not allow the motor starting
time is too long. So it can be used as a rail equipment selection. Some countries in the shaker motor selection, there are certain requirements for the start-up time. In shaker
design calculations, generally allowable starting time can be slightly higher than the recommended starting time 1 ~ 2s.
The maximum torque of the motors in general about 2 times the rated torque. Therefore, in the calculation and selection of motor power, its rated torque can be
approximated by the maximum torque to select, but also consider the circuit voltage drop. In the beginning, the acceleration is constant or nearly constant, the motor power
consumption, in addition to generating speed torque, the most of the power is mainly consumed in overcoming static torque. Then through the resonance zone, the steady state is
entered.
velocity w for stable operation. Therefore, when starting screening machine, maximum torque output of the motor. Since mc ground is relatively small, approximate calculation can
be ignored. Load characteristics and m is not a constant value, the vibration of a cycle, when the mass of the vibration movement from the bottom up, the motor will be greater
energy output; down by the quality of the vibration movement, it will emit energy.
In this case, the supply current will be affected. However, because of the rotary member vibrator has a large flywheel effect, the load on the motor tends to be smooth
and uniform. Taking into account this factor, when starting the sieve maximum static torque must be multiplied by a coefficient K. Generally does not allow the motor starting
time is too long. So it can be used as a rail equipment selection. Some countries in the shaker motor selection, there are certain requirements for the start-up time. In shaker
design calculations, generally allowable starting time can be slightly higher than the recommended starting time 1 ~ 2s.
The maximum torque of the motors in general about 2 times the rated torque. Therefore, in the calculation and selection of motor power, its rated torque can be
approximated by the maximum torque to select, but also consider the circuit voltage drop. In the beginning, the acceleration is constant or nearly constant, the motor power
consumption, in addition to generating speed torque, the most of the power is mainly consumed in overcoming static torque. Then through the resonance zone, the steady state is
entered.
2013年8月2日星期五
Double roll crusher-roll rules
Here I will introduce specific double roll crusher (also called the roll crusher) operating procedures:
Turn the machine through a trial move fully qualified before allowing formally put into production, in order to ensure long-term safe operation of the machine, you should pay
particular attention to the machine was operating properly fit routine maintenance and periodic maintenance.
(A) Preparation before operation of the machine:
The machine starts normally before fully prepared to work and strict inspection work on the machine itself requires each component must be intact, and all the fixing bolts and
ground pin nuts should be tightened securely, machine attachments without any obstruction running things and miscellaneous thereof.
(Two) driving and parking order:
After the preparation and inspection work in full compliance with the requirements, you can start the mobile crushers for sale, the machine speed until the machine during normal feeding, feeding
must be uniform, parking should stop feeding the machine, until no remaining material inside the hopper before stopping machine operation.
(Three) the normal operation of the machine:
When the normal operation of the machine, the machine operator and the officer must note the following:
1, all bolts have broken off and are loosening.
2, each bearing lubrication is normal, without overheating.
3, the seal is tight everywhere, with or without leakage.
4, the feed rate for excessive phenomenon, the particle size to meet the requirements.
5, the roll and the gear is properly functioning.
(Four) Other notes:
One can not change the direction of rotation of the machine.
2, the machine During power outages, immediately pull off the power supply to avoid accidents caused by sudden call.
Turn the machine through a trial move fully qualified before allowing formally put into production, in order to ensure long-term safe operation of the machine, you should pay
particular attention to the machine was operating properly fit routine maintenance and periodic maintenance.
(A) Preparation before operation of the machine:
The machine starts normally before fully prepared to work and strict inspection work on the machine itself requires each component must be intact, and all the fixing bolts and
ground pin nuts should be tightened securely, machine attachments without any obstruction running things and miscellaneous thereof.
(Two) driving and parking order:
After the preparation and inspection work in full compliance with the requirements, you can start the mobile crushers for sale, the machine speed until the machine during normal feeding, feeding
must be uniform, parking should stop feeding the machine, until no remaining material inside the hopper before stopping machine operation.
(Three) the normal operation of the machine:
When the normal operation of the machine, the machine operator and the officer must note the following:
1, all bolts have broken off and are loosening.
2, each bearing lubrication is normal, without overheating.
3, the seal is tight everywhere, with or without leakage.
4, the feed rate for excessive phenomenon, the particle size to meet the requirements.
5, the roll and the gear is properly functioning.
(Four) Other notes:
One can not change the direction of rotation of the machine.
2, the machine During power outages, immediately pull off the power supply to avoid accidents caused by sudden call.
2013年7月26日星期五
Mining machinery industry investment driven by some prospects
Fixed asset investment growth by pulling boom mining machinery industry is still high. Among them, for railway and rail transit construction rubble, coal crusher growth prospects.
Since 2009 because the state's 4 trillion investment plan introduced in succession into the construction peak, you can expect the next two years, investment in fixed assets will
increase significantly, mining machinery industry will continue to grow rapidly based. Typically, infrastructure construction and real estate development investment of 5% to 8%
Buy construction machinery and equipment (of which there are crusher machine), and according to estimates, four trillion investment could boost annual consumption of 300 to 500 mining
machinery million, mining machinery around 15% annual growth.
Which is the construction of the railway and urban metro focus: Investment 1.25 trillion yuan for the construction of 17,000 km of new railway; while upgrading the existing rail
network technology, expansion of the existing road network to the remote west. Investment of about 200 billion yuan for urban metro network construction. The average annual
investment
1400-1600 billion yuan for the construction of 380,000 km of roads, including 24,000 km of expressways. Mining machinery industry is a typical cyclical industry, and its cycle
of about 10 years, and the current round of economic cycle from mining machinery since the beginning of 2001 has been nearly nine years of
Between the adjustment has not been, and we expect the industry is gradually increasing pressure on cyclical adjustment.
2013年7月19日星期五
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