Bucket elevator structure is not complicated, it is commonly used to transport produce powders, Seed
coating machine.In the bucket elevator shall be provided at the bottom of the head and suction pipes and vents to ensure that the bucket elevator and feed in the discharge process will not form a vacuum and dust spills . A well-made transportation equipment, it must be reliable sealing . But good sealing of the material during discharge and the feed pressure difference is bound , resulting in difficulties in feeding and unloading . Vents inside the Screw
conveyor pressure and external pressure substantially equal. Adequate suction ventilation to avoid the dust from the overflow , avoiding waste and clean environment .
Improve breathing have smooth internal confidential environment, reduce waste and improve efficiency.
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2013年9月29日星期日
2013年9月28日星期六
Screw backflow of material
Screw Conveyor for the transport of objects conveyor . Currently involved in the field of conveyor used in metallurgy, building materials, chemicals , food and mechanical processing and other sectors. Screw -structure can be divided into horizontal and vertical screw conveyor screw conveyor two major types . This is mainly transported material through chat shift direction angle division.
Screw conveyor during operation , if there are material card out of the bearing block , this is the back. If reflux occurs frequently conveyor , screw conveyor throughput will drop a large amount of screw conveyor for conveying , backflow of material is likely to undermine gear, resulting in excessive current gear burned , causing economic losses.
View from the screw conveyor transport process : Controller control wheel slip running speed and the speed of the material determines the material conveying speed of the conveyor . Conveyor fill factor , determines the time of unloading bay , and the pace of late , depends on feed screw , and the motor size. Therefore, to improve the size of the auger shaft and the motor size can solve the problem material jamming .
Screw the body from head section , the middle section , the tail section of three parts. Screw the whole production chain has become one of important equipments . Advanced structure , adaptable , small resistance , long life , easy maintenance, protection devices is a significant feature of the screw conveyor .
The main structure by conveyor wheel , belt tensioner and a flexible traction element composition, therefore , they are often referred to as a flexible traction member conveying device. Screw conveyor is different, it is based on a rigid spirochete realized as the main component material handling , usually called a rigid " pull" component conveying equipment.
Screw conveyor during operation , if there are material card out of the bearing block , this is the back. If reflux occurs frequently conveyor , screw conveyor throughput will drop a large amount of screw conveyor for conveying , backflow of material is likely to undermine gear, resulting in excessive current gear burned , causing economic losses.
View from the screw conveyor transport process : Controller control wheel slip running speed and the speed of the material determines the material conveying speed of the conveyor . Conveyor fill factor , determines the time of unloading bay , and the pace of late , depends on feed screw , and the motor size. Therefore, to improve the size of the auger shaft and the motor size can solve the problem material jamming .
Screw the body from head section , the middle section , the tail section of three parts. Screw the whole production chain has become one of important equipments . Advanced structure , adaptable , small resistance , long life , easy maintenance, protection devices is a significant feature of the screw conveyor .
The main structure by conveyor wheel , belt tensioner and a flexible traction element composition, therefore , they are often referred to as a flexible traction member conveying device. Screw conveyor is different, it is based on a rigid spirochete realized as the main component material handling , usually called a rigid " pull" component conveying equipment.
Screw cold winter season maintenance work to do well
Screw stimulate the economy begins to ferment , as long as you can see observe at this time conveying equipment turnover rate is not high, small models of transportation equipment sales have increased, although the increase is modest , but more than pre- much better. Screw in the industry market price is generally low, the cost of production and performance of the device there is a certain relationship , but why small equipment sales in the current large-scale equipment to be higher than it .
Screw the price is a very important condition , because it is the production base in Xinxiang price will be more favorable relationship between a number of , as well as an increase in sales of small equipment breakdown prompted . Current economic reasons , many product prices are down a lot, using the screw conveyor to pay all the production is small, carefully calculate still profitable , but with the large equipment is different, larger sizes Screw purchase and production costs are now the situation is not conducive .
Vertical screw conveyor is suitable for short distance vertical transportation . Flexible screw conveyor screw by a flexible shaft and blade composed of synthetic rubber , easy to bend, or process according to the site requirements of any arrangement for space transportation . There are pull-type screw conveyor blade and pull the entire loss , now pull any thickness can be made with the specifications of size, should not be made whole pull nonstandard helix.
Transportation of materials from the perspective of the direction of displacement divided Hongdae screw conveyor is divided into horizontal and vertical screw conveyor screw conveyor into two types , mainly used for all kinds of powder , granular and small block and other loose materials horizontal transport and vertical lift , the screw conveyor suitable for transporting perishable, viscous , easy caking or high temperature , afraid of pressure , there is greater corrosive special materials .
Screw Conveyor are generally body material inlet and outlet and the drive unit has three major components ; screw conveyor helical blades have a physical spiral surface with spiral blade helicoid surface and the three forms , which vane helical surface application relatively small, mainly used for transporting material viscosity and compressibility , this snail hanging face, with the completion of the process of transfer operations , both of materials and finish stirring, mixing and other functions.
Screw the price is a very important condition , because it is the production base in Xinxiang price will be more favorable relationship between a number of , as well as an increase in sales of small equipment breakdown prompted . Current economic reasons , many product prices are down a lot, using the screw conveyor to pay all the production is small, carefully calculate still profitable , but with the large equipment is different, larger sizes Screw purchase and production costs are now the situation is not conducive .
Vertical screw conveyor is suitable for short distance vertical transportation . Flexible screw conveyor screw by a flexible shaft and blade composed of synthetic rubber , easy to bend, or process according to the site requirements of any arrangement for space transportation . There are pull-type screw conveyor blade and pull the entire loss , now pull any thickness can be made with the specifications of size, should not be made whole pull nonstandard helix.
Transportation of materials from the perspective of the direction of displacement divided Hongdae screw conveyor is divided into horizontal and vertical screw conveyor screw conveyor into two types , mainly used for all kinds of powder , granular and small block and other loose materials horizontal transport and vertical lift , the screw conveyor suitable for transporting perishable, viscous , easy caking or high temperature , afraid of pressure , there is greater corrosive special materials .
Screw Conveyor are generally body material inlet and outlet and the drive unit has three major components ; screw conveyor helical blades have a physical spiral surface with spiral blade helicoid surface and the three forms , which vane helical surface application relatively small, mainly used for transporting material viscosity and compressibility , this snail hanging face, with the completion of the process of transfer operations , both of materials and finish stirring, mixing and other functions.
2013年9月26日星期四
Small hammer crusher wear a shock after the effective exclusion
Hammer Mill After a long work, increasing the degree of wear of the machine , there will be all kinds of problems , the most common problem is that the hammer crusher vibration significantly increased , the noise is also growing , not only cause noise pollution, will seriously affect the operation efficiency of the crusher and crushing strength, also caused a great security risk .
Hammer crusher is usually caused by vibrations cause foundation cracks , loose bolts , bearing wear , the individual hammer crusher broken off so unbalanced vibrations . Maintenance personnel inspect the above questions : check whether there is some basis for cracks, loose bolts , breakage , two bearing without walking the inner and outer phenomena , clearance size. According to these data to determine whether the record hammerhead counterweight specification requirements , hammer wear uniform , with or without breaking hammer . When the above conditions are excluded , for further examination, in the course of observing plate moving rotor hammer if there are stuck in the hammer plate , unable to work , as this will cause changes in the radius of gyration , rotor balancing lost cause vibration . Card hammer hammer is due to the wear of the disc . Therefore crusher badly unbalanced , causing severe vibration operation .
Specific vibration causes are varied , in most cases the analysis , there will be an unusual situation , on specific issues treated . First processing 40mm × 40mm thickness of 20mm steel plate , and then welding four plates on each hammer . Care must be taken in the direction of rotation of the hammer hammer restrictions can not be dead , to ensure a certain degree of leeway , basically to ensure that the hammer and hammer plate inside the outer arc tangent . This will not only ensure that the hammer is not stuck, but also to ensure the hammer in the crushing process of certain buffer to reduce the impact crusher .
Hammer crusher is usually caused by vibrations cause foundation cracks , loose bolts , bearing wear , the individual hammer crusher broken off so unbalanced vibrations . Maintenance personnel inspect the above questions : check whether there is some basis for cracks, loose bolts , breakage , two bearing without walking the inner and outer phenomena , clearance size. According to these data to determine whether the record hammerhead counterweight specification requirements , hammer wear uniform , with or without breaking hammer . When the above conditions are excluded , for further examination, in the course of observing plate moving rotor hammer if there are stuck in the hammer plate , unable to work , as this will cause changes in the radius of gyration , rotor balancing lost cause vibration . Card hammer hammer is due to the wear of the disc . Therefore crusher badly unbalanced , causing severe vibration operation .
Specific vibration causes are varied , in most cases the analysis , there will be an unusual situation , on specific issues treated . First processing 40mm × 40mm thickness of 20mm steel plate , and then welding four plates on each hammer . Care must be taken in the direction of rotation of the hammer hammer restrictions can not be dead , to ensure a certain degree of leeway , basically to ensure that the hammer and hammer plate inside the outer arc tangent . This will not only ensure that the hammer is not stuck, but also to ensure the hammer in the crushing process of certain buffer to reduce the impact crusher .
Hammer crusher installation commissioning
1, the installation can be selected according to sources of raw materials terrain.
2, the machine by the anchor bolts in the concrete , the design of the foundation when leaving a row of mine shafts , and its slope can not be less than 50 °, but the user can also be based feeder and transport equipment custom .
3, the motor should be installed with the inlet in the opposite direction .
4 , easy to use electrical Grain testing equipment in order to better position .
5 , before commissioning should first check the fasteners are completely secure.
6, check whether the body falls unbreakable metal or other debris .
7, check whether the proper bearing lubrication .
8 , turn the rotor by hand to see if they are functioning properly , without friction phenomenon , if recognized as unimpeded movement when empty before starting, test after half an hour no noise, no swing , bearing temperature does not exceed 30 ℃, can be load test .
2, the machine by the anchor bolts in the concrete , the design of the foundation when leaving a row of mine shafts , and its slope can not be less than 50 °, but the user can also be based feeder and transport equipment custom .
3, the motor should be installed with the inlet in the opposite direction .
4 , easy to use electrical Grain testing equipment in order to better position .
5 , before commissioning should first check the fasteners are completely secure.
6, check whether the body falls unbreakable metal or other debris .
7, check whether the proper bearing lubrication .
8 , turn the rotor by hand to see if they are functioning properly , without friction phenomenon , if recognized as unimpeded movement when empty before starting, test after half an hour no noise, no swing , bearing temperature does not exceed 30 ℃, can be load test .
2013年9月17日星期二
Conveyor belt installation and maintenance
First, the startup and shutdown
Conveyor generally be started in an unloaded condition. By installing several units in the conveyor belt should be used when you can lock the starter to the control room through a certain order to start and stop. In addition, in order to prevent incidents, each conveyor should be set in place to start or stop buttons can be individually stopped Renyiyitai. In order to prevent the conveyor belt for some reason is longitudinal tear, when the conveyor is longer than 30m, the length along the conveyor, should be spaced a certain distance (e.g. 25-30m) to install a stop button.
Second, the installation of belt conveyor
Belt conveyor installation is typically carried out according to the following stages.
1 Install Belt Conveyor rack rack rack installation is started from scratch, and then install the sections sequentially intermediate frame, the final installation of the tailstock. A mounting rack, first to the entire length of the conveyor centerline pulling, due to keep the conveyor belt center line in a straight line is an important condition for the normal operation, so the installation of the rack sections, must be aligned with the centerline, but also put on airs leveling the rack on the centerline of the allowable error per meter captain of ± 0.1mm. However, the entire length of the conveyor frame centered on the error should not exceed 35mm. When all the single install and pinpoint can then be connected to each block.
2 Install drive unit mounted drives, you must pay attention to the belt conveyor belt conveyor drive shaft and perpendicular to the centerline, the width of the drive roller conveyor centerline central and coincides with the axis of the shaft line reducer parallel. Also, all shafts and rollers should be leveling. Axis horizontal error, according to the width of the conveyor, allowing the range of 0.5-1.5mm. Driving means installed at the same time, the tail wheel, etc. can be mounted tensioning device, the tensioning device of the axis of the drum, should be perpendicular to the centerline of the belt conveyor.
3 Install the rack rollers, gear and tensioning device after installation, you can install the upper and lower idler roller frame, so that the belt has a slow change to the curved arc, bending roll cage segment prop prop pitch as normal roller frame pitch 1/2 to 1/3. Idler installation, you should make it flexible rotary light.
4 belt conveyor belt in order to ensure the final pinpoint idlers and rollers are always in the center line of the operation, installation rollers, racks and rollers must meet the following requirements:
1) All rollers must line up parallel to each other and keep the horizontal level.
2) All the rollers are arranged in rows parallel to each other.
3) frame supporting structure must be linear, but keeping the horizontal level. To this end, the drive roller and roller frame after installation, should the centerline and the horizontal conveyor for final alignment.
5 is then fixed on the basis of the rack or floor. After a fixed belt conveyors can be fitted to the loading and unloading devices.
6 hanged hanged conveyor belt, the first shop in the strip conveyor idlers on load segments, Wai hold after the drive roller, and then deposited in the heavy segment on roller. Let hanging strips of use 0.5-1.5t hand winch. Connecting strip under tension when the roller moves the tensioning device shall limit position of the car and screw tensioning device To pull the gear shift direction; while picking up tight vertical move to the top of the drum unit to make . In previous belt tension should be installed reducer and motor, tilt conveyor confidential installed brakes.
7 belt conveyor installation, the need for idling test machine. In the idling test machine, pay attention to whether the running belt deviation phenomenon, driven part of the operating temperature, roller during operation activities, cleaning device and the guide plate in contact with the belt surface rigor, etc., while make the necessary adjustments, the components are normal after the operation can be performed with a load test machine. If a spiral tensioning device, with load test machine, but also once again its tightness adjustment.
Third, the maintenance of belt conveyors
To ensure reliable operation of belt conveyors, the most important is to detect and eliminate possible failures. This operation must always observe the work of transport, such as abnormal should timely manner. Mechanical workers should be regular inspections and check for any situations requiring attention or parts, this is very important. For example, a roller, does not seem very important, but a high-speed conveyor belt worn materials may soon put its shell worn out, the emergence of a blade, the blade could seriously damage an expensive belt. Workers trained or experienced staff to detect impending accident and take preventive measures. Belt conveyor belt conveyor costs in the entire account for a large proportion. In order to reduce the cost of replacement and repair belt, must pay attention to the operator and maintenance personnel for the operation and maintenance of conveyor knowledge training.
Conveyor generally be started in an unloaded condition. By installing several units in the conveyor belt should be used when you can lock the starter to the control room through a certain order to start and stop. In addition, in order to prevent incidents, each conveyor should be set in place to start or stop buttons can be individually stopped Renyiyitai. In order to prevent the conveyor belt for some reason is longitudinal tear, when the conveyor is longer than 30m, the length along the conveyor, should be spaced a certain distance (e.g. 25-30m) to install a stop button.
Second, the installation of belt conveyor
Belt conveyor installation is typically carried out according to the following stages.
1 Install Belt Conveyor rack rack rack installation is started from scratch, and then install the sections sequentially intermediate frame, the final installation of the tailstock. A mounting rack, first to the entire length of the conveyor centerline pulling, due to keep the conveyor belt center line in a straight line is an important condition for the normal operation, so the installation of the rack sections, must be aligned with the centerline, but also put on airs leveling the rack on the centerline of the allowable error per meter captain of ± 0.1mm. However, the entire length of the conveyor frame centered on the error should not exceed 35mm. When all the single install and pinpoint can then be connected to each block.
2 Install drive unit mounted drives, you must pay attention to the belt conveyor belt conveyor drive shaft and perpendicular to the centerline, the width of the drive roller conveyor centerline central and coincides with the axis of the shaft line reducer parallel. Also, all shafts and rollers should be leveling. Axis horizontal error, according to the width of the conveyor, allowing the range of 0.5-1.5mm. Driving means installed at the same time, the tail wheel, etc. can be mounted tensioning device, the tensioning device of the axis of the drum, should be perpendicular to the centerline of the belt conveyor.
3 Install the rack rollers, gear and tensioning device after installation, you can install the upper and lower idler roller frame, so that the belt has a slow change to the curved arc, bending roll cage segment prop prop pitch as normal roller frame pitch 1/2 to 1/3. Idler installation, you should make it flexible rotary light.
4 belt conveyor belt in order to ensure the final pinpoint idlers and rollers are always in the center line of the operation, installation rollers, racks and rollers must meet the following requirements:
1) All rollers must line up parallel to each other and keep the horizontal level.
2) All the rollers are arranged in rows parallel to each other.
3) frame supporting structure must be linear, but keeping the horizontal level. To this end, the drive roller and roller frame after installation, should the centerline and the horizontal conveyor for final alignment.
5 is then fixed on the basis of the rack or floor. After a fixed belt conveyors can be fitted to the loading and unloading devices.
6 hanged hanged conveyor belt, the first shop in the strip conveyor idlers on load segments, Wai hold after the drive roller, and then deposited in the heavy segment on roller. Let hanging strips of use 0.5-1.5t hand winch. Connecting strip under tension when the roller moves the tensioning device shall limit position of the car and screw tensioning device To pull the gear shift direction; while picking up tight vertical move to the top of the drum unit to make . In previous belt tension should be installed reducer and motor, tilt conveyor confidential installed brakes.
7 belt conveyor installation, the need for idling test machine. In the idling test machine, pay attention to whether the running belt deviation phenomenon, driven part of the operating temperature, roller during operation activities, cleaning device and the guide plate in contact with the belt surface rigor, etc., while make the necessary adjustments, the components are normal after the operation can be performed with a load test machine. If a spiral tensioning device, with load test machine, but also once again its tightness adjustment.
Third, the maintenance of belt conveyors
To ensure reliable operation of belt conveyors, the most important is to detect and eliminate possible failures. This operation must always observe the work of transport, such as abnormal should timely manner. Mechanical workers should be regular inspections and check for any situations requiring attention or parts, this is very important. For example, a roller, does not seem very important, but a high-speed conveyor belt worn materials may soon put its shell worn out, the emergence of a blade, the blade could seriously damage an expensive belt. Workers trained or experienced staff to detect impending accident and take preventive measures. Belt conveyor belt conveyor costs in the entire account for a large proportion. In order to reduce the cost of replacement and repair belt, must pay attention to the operator and maintenance personnel for the operation and maintenance of conveyor knowledge training.
Accident Analysis and Prevention Belt
Reason
1.1 cause fire accidents
Underground mine Belt Conveyor is mainly fire-prone areas, because of its sudden, rapid development, pose a threat to the underground workers, and even induced due to the spread of fire and gas explosion is possible. Result in a fire accident was caused by the ignition source has enough calories to make tape burn. Skidding accidents are a major factor in generating enough heat, tape slippage is due to loose or tape jam large load caused by the tape tensioning device due to loose tension force generated by the elastic elongation of the tape is too small and too large; large load First, because of heavy start, the second is due to load is too large, three is the tape and active roller, driven roller idler friction between too small, such as tape inside surface water or oil, the driven roller bearing damage or childcare roll damage; tape jammed tape is mainly buried in coal or in the mud, so that the tape can not run. Another electrical equipment sparks, electrical short circuit may also cause the conveyor fire.
1.2 belt run cause of the accident
Runtime conveyor belt deviation is the most common faults. Deviation accidents occur frequently, it will affect the life of the conveyor, severe outage occurs or is likely to result in personal injury or death. Causing belt run three main reasons: First, the device itself aspects, such as the outer cylindrical drum larger error, roller rotation is not flexible, proactive and driven roller drum axis parallelism error is larger, etc.; Second, installation and commissioning aspects, such as roller, roller, rack installation does not meet regulatory requirements, in addition to vent coal biased position of the mouth, causing the tape to make partial load deviation; Third, maintenance, mainly due to the cleaning is not timely, transport Machine Drum Machine roller-stained dust, resulting in local diameter Ambassador belt run.
1.3 Tear cause of the accident
Tear tape main reasons: First funnel badly worn, resulting in waste rock and coal gangue direct hit tape or card tape and other items caused by tearing; Second, serious deviation is scraped tear tape; three tape joint strength is too low or because the load is too large to make tape joints broken.
Prevention
2.1 Fire accident prevention
1) using fire-retardant tape, even in the event of fire, it will not be able to control the fire rapidly.
2) strengthen the maintenance of electrical equipment, to prevent fires caused by electrical accidents.
3) strengthen management, to keep the roadway clean, tape no floating coal, water, no oil, no debris, nose, tail no heap coals. Improve the quality of operation and maintenance personnel to maintain good running condition conveyor.
4) conveying confidential installation inspection and monitoring devices, such as drive rollers and driven roller temperature monitoring devices, smoke alarms and fire in the event of an automatic sprinkler system.
2.2 Deviation accident prevention
1) confirmation by the state purchase of qualified products, avoid the lack of precision equipment manufacturing belt deviation caused by an accident.
2) Install the installation process to focus on the dimensional accuracy:
a. installation tape found at the deviation in the drum, the drum should be corrected and equal degree of levelness, drive pulley, steering cylinder installation requires its width tape centerline coincides with the centerline of not more than 2mm, its axis line and tape The vertical center line of the drum is no more than a fraction of the width, the horizontal roller shaft of not more than 0.3/1000.
b. If you find that tape to the side of the no-load total deviation should be adjusted idler bracket.
c. If you find no deviation tape at no load, and heavy load to the side of the deviation, indicating that the tape appeared partial load, coal hopper vent should be adjusted to the position.
3) strengthening routine maintenance:
a. timely removal conveyor rollers, roller, splice at other major parts of the dust, and prevent the roller, roller-stained dust lead belt run.
b. timely adjustment of tape running deviation phenomenon occurs, promptly check the tape edges and joints wear, identify problems and timely replacement and repair.
4) Install belt run the monitoring device, once the belt run off the alarm signal to alert maintenance personnel to take action.
2.3 Tear accident prevention
A) timely repair worn funnel, avoiding direct coal gangue and pound the tape.
2) the timely processing of deviation fault, not tear tape.
3) Set the tape longitudinal tear monitoring devices, found fault timely manner.
1.1 cause fire accidents
Underground mine Belt Conveyor is mainly fire-prone areas, because of its sudden, rapid development, pose a threat to the underground workers, and even induced due to the spread of fire and gas explosion is possible. Result in a fire accident was caused by the ignition source has enough calories to make tape burn. Skidding accidents are a major factor in generating enough heat, tape slippage is due to loose or tape jam large load caused by the tape tensioning device due to loose tension force generated by the elastic elongation of the tape is too small and too large; large load First, because of heavy start, the second is due to load is too large, three is the tape and active roller, driven roller idler friction between too small, such as tape inside surface water or oil, the driven roller bearing damage or childcare roll damage; tape jammed tape is mainly buried in coal or in the mud, so that the tape can not run. Another electrical equipment sparks, electrical short circuit may also cause the conveyor fire.
1.2 belt run cause of the accident
Runtime conveyor belt deviation is the most common faults. Deviation accidents occur frequently, it will affect the life of the conveyor, severe outage occurs or is likely to result in personal injury or death. Causing belt run three main reasons: First, the device itself aspects, such as the outer cylindrical drum larger error, roller rotation is not flexible, proactive and driven roller drum axis parallelism error is larger, etc.; Second, installation and commissioning aspects, such as roller, roller, rack installation does not meet regulatory requirements, in addition to vent coal biased position of the mouth, causing the tape to make partial load deviation; Third, maintenance, mainly due to the cleaning is not timely, transport Machine Drum Machine roller-stained dust, resulting in local diameter Ambassador belt run.
1.3 Tear cause of the accident
Tear tape main reasons: First funnel badly worn, resulting in waste rock and coal gangue direct hit tape or card tape and other items caused by tearing; Second, serious deviation is scraped tear tape; three tape joint strength is too low or because the load is too large to make tape joints broken.
Prevention
2.1 Fire accident prevention
1) using fire-retardant tape, even in the event of fire, it will not be able to control the fire rapidly.
2) strengthen the maintenance of electrical equipment, to prevent fires caused by electrical accidents.
3) strengthen management, to keep the roadway clean, tape no floating coal, water, no oil, no debris, nose, tail no heap coals. Improve the quality of operation and maintenance personnel to maintain good running condition conveyor.
4) conveying confidential installation inspection and monitoring devices, such as drive rollers and driven roller temperature monitoring devices, smoke alarms and fire in the event of an automatic sprinkler system.
2.2 Deviation accident prevention
1) confirmation by the state purchase of qualified products, avoid the lack of precision equipment manufacturing belt deviation caused by an accident.
2) Install the installation process to focus on the dimensional accuracy:
a. installation tape found at the deviation in the drum, the drum should be corrected and equal degree of levelness, drive pulley, steering cylinder installation requires its width tape centerline coincides with the centerline of not more than 2mm, its axis line and tape The vertical center line of the drum is no more than a fraction of the width, the horizontal roller shaft of not more than 0.3/1000.
b. If you find that tape to the side of the no-load total deviation should be adjusted idler bracket.
c. If you find no deviation tape at no load, and heavy load to the side of the deviation, indicating that the tape appeared partial load, coal hopper vent should be adjusted to the position.
3) strengthening routine maintenance:
a. timely removal conveyor rollers, roller, splice at other major parts of the dust, and prevent the roller, roller-stained dust lead belt run.
b. timely adjustment of tape running deviation phenomenon occurs, promptly check the tape edges and joints wear, identify problems and timely replacement and repair.
4) Install belt run the monitoring device, once the belt run off the alarm signal to alert maintenance personnel to take action.
2.3 Tear accident prevention
A) timely repair worn funnel, avoiding direct coal gangue and pound the tape.
2) the timely processing of deviation fault, not tear tape.
3) Set the tape longitudinal tear monitoring devices, found fault timely manner.
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