Maintenance of heavy plate feeder
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according to the statistics of road sign network, 111 trademarks of plate feeder have been registered< How to choose other categories ring registration:
1. There are 3 trademarks in the category of (pump (machine), group number: 0749), accounting for 2.7%
2. There are 2 trademarks in the category of (wear-resistant and anti-corrosion cement slurry pump (machine), group number: 0749), accounting for 1.8%
3. There are 2 trademarks in the category of (flotation machine, group number: 0730), The registration rate is 1.8%
4. There are 2 trademarks in the category of sewage pump (machine), group number: 0749, and the registration rate is 1.8%
5. There are 2 trademarks in the category of slag screen (machine), group number: 0730, and the registration rate is 1.8%
6. There are 2 trademarks in the category of washing machine, group number: 0730, The registration rate is 1.8%
7. There are 2 trademarks in the category of mixer (group number: 0753), and the registration rate is 1.8%
8. There are 2 trademarks in the category of solution pump (machine), group number: 0749, and the registration rate is 1.8%
9. There is 1 trademark in the category of pump (machine, engine or motor), and group number: 0749, The registration rate is 0.9%
10. There is one trademark selected for registration (hydrocyclone, group number: 0730), and the registration rate is 0.9%
there is a formula for the design size of feeding port of jaw crusher: feeding port size = (1.1 ~ 1.25) * maximum particle size of raw material
many proction personnel do not understand it, and always take the measured feed port size as the maximum feed size. Therefore, the raw materials with large particle size exceeding the requirements become the culprit of blocking the cavity slot. Although it is not blocked repeatedly, the equipment will not operate normally for a long time every time. Therefore, strict control of raw material particle size is one of the most important preconditions to ensure the normal operation of jaw crusher
2. Strictly control the feeding amount to prevent the blockage caused by excessive feeding
many enterprises transform the silo blindly in order to improve the proction capacity, which often leads to excessive feeding
because the working principle of jaw crusher is half rhythm, if excessive materials are put in, the materials will not be broken in time, and the broken materials can not be eliminated in time, resulting in material jam. Therefore, the capacity of jaw crusher will be affected by material breaking and excessive feeding
3. Rhythm feeding, control feeding, ensure the normal operation of jaw crusher
at present, the crushing section of mineral processing enterprises is mostly fed by end chute, 2 / 3 of the whole feeder is even exposed outside the bin. Due to the remote feeding port, the feeder is completely changed into a vibrating chute, which not only has poor feeding speed, but also has serious wear. The best feeding position of the feeder should be in the range of 1 / 3 of the top of the equipment, but vertical feeding is strictly prohibited to prevent the equipment from losing its vibration ability or affecting the conveying effect
4. Adjust the angle of the feeder, make full use of the screening function of the feeder to achieve pre screening
vibrating feeder often has grate bar, which has some screening functions. However, in practical application, e to the amplitude, feeding angle and other reasons, it is easy to block the grate bar in the screening process, which makes it lose its original efficiency. In the face of this situation, many enterprises block the grate bar with steel plate and turn it into a plate feeder
in fact, the grate bar of vibrating feeder can play an extremely obvious role when it is properly adjusted. It is the best way to improve the overall flow rate by adjusting the amplitude and the angle of the feeder and fully releasing the screening function of the feeder< The processing capacity of jaw crusher is determined by adjusting the discharge port and bite angle of jaw crusher to increase the processing capacity of the equipment to the maximum. The jaw crusher is often used as coarse crushing equipment, the size of its discharge port should be based on the optimal feed size of two-stage crushing, and the size of discharge port should not be arbitrarily increased or reced
the bite angle (the angle between the movable jaw plate and the fixed jaw plate) needs to be adjusted strictly, generally in the range of 17 ~ 26 degrees (subject to the actual situation).
in the later period of the KMT, the inflation was serious, and the devaluation of the golden yuan certificate was extremely serious. There were 6 billion yuan banknotes in Xinjiang, but only nine grains of rice could be bought. Many people threw the golden yuan certificate as waste paper, Even if they can't eat, poor people use it to wipe their buttocks
after maintenance, it can be delivered for use only after passing the acceptance according to the equipment maintenance system
1. Before start-up, remove the sundries around the equipment, check whether the screws are tight, check the wear of spoon head and grading blade, and check whether the belt conveyor and feeder are in good condition
2. Check whether the oil pipe is smooth, the oil quantity of the recer should reach the mark line, the oil quality should meet the quality requirements, and the lubrication tools should be complete
3. Check whether the rotating parts and safety facilities are reliable, and whether the electrical parts are faulty
4. Check whether the water pipe and pulp pipe are unblocked, and whether there is drip leakage in each part; Check the wear of the bottom of the discharge chute and remove the debris in the chute
5. After stopping for more than two hours, the ball mill and classifier should be barring before starting up to make the consolidated ore loose and rece the impact load when the equipment starts up
6. After the inspection is completed and the equipment of the post is confirmed to be normal, the "maintenance board" can be removed to inform the next process and the electrician ty room to send power and prepare to start.
1. Daily inspection
1) check whether there are abnormal sounds, violent oscillation, fever and other abnormal phenomena in each transformation, and if there are, clean them in time
2) check whether the recer, hydraulic coupling, hydraulic cylinder and push system hose are leaking. If the leakage is serious, it should be handled in time and make up for the oil
3) check whether the bolts of recer, blind shaft, chain wheel, coal baffle, coal shovel and scraper chain are loose, and deal with them in time
4) check whether the scraper, connecting ring and ring chain are damaged, and replace them in time
5) check whether the tension of scraper chain is moderate and whether there is tooth skipping phenomenon. If the scraper chain is too loose, it should be tensioned in time
6) check whether the chute has the appearance of missing pin and wrong joint. Once found, it should be replaced in time< 2. Weekly inspection
1) check whether the oil volume of recer, hydraulic coupling, blind shaft and other parts is appropriate and whether there is any degeneration
2) check whether the connecting bolts of coal baffle and coal shovel are loose or fall
3) check whether the nose (tail) frame is damaged or deformed
4 check the fastening condition of the connecting bolts at the head (tail)
5) check the wear condition of the chain puller and scraper
6) check whether the motor lead can be damaged
7) check the damage and deformation of chute coal baffle and coal shovel
8) check whether the hydraulic cylinder and hose are damaged
3. Quarterly inspection and semi annual inspection
the hydraulic coupling, transition groove, sprocket and chain puller shall be inspected once a quarter (ring which the chain puller depends on the wear condition), and the motor and recer shall be inspected once a half year.
the daily maintenance shall be undertaken by the equipment operator or full-time personnel of the user unit, and the installation and maintenance unit has the obligation to supervise and inspect the daily maintenance contents. The main contents of daily maintenance are summarized as "cross operation method": cleaning, fastening, lubrication, adjustment and anti-corrosion. 10-30 minutes before and at the end of the shift every day, inspect whether all parts and parts of the equipment are normal, add oil and lubricate according to the regulations, pay attention to whether the sound of mechanical operation is normal, do a good job in cleaning and shift handover, so as to achieve the purpose of clean appearance and normal operation of the equipment. Daily maintenance records and shift handover records should be made into fixed forms and managed as archives< 2. Weekly maintenance of construction elevator:
1. Check and lubricate every day according to the operation instructions
2. Make sure that the pinion and pressure wheel are firmly fixed on the drive base plate, and check the bolt fixation of the drive base plate
3. Check the brake torque, refer to the brake torque inspection requirements in the manual
4. Check the oil level of the recer and add new oil if necessary
5. Check the interlocking device of cage door and fence door, up and down travel and other safety protection switches
6. Check the safety interlock of all doors of the cage
7. Check whether the position of the upper and lower limit blocks of the guide rail frame is correct
8. Check the cable protection of the cable guide frame
9. Check the relative position between the cable support wall and the cable guide frame
10. Check the connection points of all standard sections and diagonal braces. At the same time, check the fastening bolts of the rack
11. Keep the motor cooling flange and mechanism clean
12. Ensure that power cables and electrical lines are not damaged
13. For the construction elevator with counterweight, check the adjustment and fixation of counterweight guide wheel. Check the balance device, crown wheel and counterweight wire rope bracket of the wire rope
14. Check the fastening condition of bolts and retaining rings between the wall bracket, strut and bridge, and correct the looseness and displacement
III. monthly maintenance of construction elevator:
1. Check weekly inspection items
2. Check the wear of pinion and rack. Refer to the manual for specific requirements
3. Check the worm gear wear of worm gear recer with feeler gauge. Refer to the manual for specific requirements
4. Check the wear and clearance of guide wheel< 4. Quarterly maintenance of construction elevator:
1. Check the items checked every month
2. Check the clearance of the ball bearing and the wear of the guide wheel of the hanging wheel. If the roller is worn, it must be adjusted or replaced. If the bearing is worn, replace the guide wheel or bearing
3. Fall test to check whether the braking distance of safety speed limiter meets the requirements< 5. Transfer maintenance of construction elevator equipment:
1. Check the coupling between motor and worm gear recer. In addition, dismantle and inspect the gearbox, clean all parts and seals, and replace excessively worn and deformed parts and lubricating oil
2. Cleaning, derusting and repainting shall be carried out for the corrosion of structural parts such as cage and guide rail frame, and reinforcement treatment shall be carried out for the stressed members with serious corrosion
3. Adjust and repair safety doors and mechanical interlocking devices
4. Check the lubricating steel wire rope and each fastener, and replace it if there is excessive wear
5. Clean and inspect the crown wheel frame assembly, repair or replace with new parts
6. Check and repair the electrical control circuit and the switch device of the operation board. If the circuit is aging, it must be replaced
7. Check and clean the driving gear and guide wheels, and replace them in case of excessive wear
8. Check whether the service life of the speed limiter has expired. If it exceeds the service life, it must be sent to a qualified professional unit for testing and calibration.
The maintenance methods of fire extinguisher are as follows:
I. inspection and maintenance of fire extinguisher
1. Daily inspection
(1) check whether the pressure is within the specified range
(2) check whether the safety pin is rusted, whether it can rotate flexibly, and whether the lead seal is in good condition
(3) whether there is serious damage, deformation, corrosion, etc. on the pressure handle, valve body, thimble and other metal parts of the fire extinguisher
(4) check the powder spray tube for aging and spider web
(5) check the cylinder for deformation, corrosion at the bottom and spider web
(6) check the dry powder for caking
(7) check whether the fire extinguisher is within the effective use period 4kg dry powder fire extinguisher for 10 years; 35kg dry powder fire extinguisher for 12 years; Carbon dioxide fire extinguisher 12 years.)
(8) whether the rotating parts on the frame of the wheeled fire extinguisher are loose and whether they are flexible and reliable
(9) check whether the items marked on the nameplate are clear and complete< Daily maintenance
(1) clean the surface, powder spraying pipe and safety pin frequently
(2) lubricate and maintain the active parts regularly
(3) shake the cylinder regularly to prevent dry powder caking
(4) when the pressure is lower than the specified range or the dry powder is seriously caked, repair or replacement should be applied
(5) the dry powder and carbon dioxide fire extinguisher shall be subject to hydrostatic test after being filled with fire extinguishing agent for five years, and then every two years. When the service life reaches the end of life, the replacement shall be applied in time< 2. Operation method of fire extinguisher (portable dry powder fire extinguisher)
1. Turn it upside down several times before use, stand at the upper air outlet, keep 5m distance from the combustor, remove the lead seal, pull out the safety pin, hold the powder spray pipe, aim at the root of the flame, press the handle, and start to shoot left and right
precautions: to put out the liquid fuel fire, we should deal with the quasi flame root; When the combustor is droplet like, it shoots from near to far and from left to right; When extinguishing the combustible liquid in the container, it is not allowed to spray directly at the liquid level to prevent splashing; When using potassium phosphate dry powder fire extinguisher to put out solid combustible fire, it should be sprayed from top to bottom and from left to right at the place where the quasi fire is most violent
2. The operation method of wheeled dry powder fire extinguisher is two people, standing at the upper air outlet, keeping a distance of 10m from the combustibles. One person takes down the spray gun, unfolds the hose and aims at the root of the flame; Another person pulled out the safety pin and quickly opened the opening mechanism of the fire extinguisher
3. The operation method of carbon dioxide fire extinguisher is to pull out the safety pin first, then open the pressure handle with one hand, hold the handle of the horn spray cylinder with the other hand, and tightly hold the open pressure handle to spray
precautions: to put out liquid combustible fire, it is necessary to deal with the root of the flame; When the combustor is droplet like, it shoots from near to far and from left to right; When extinguishing the combustible liquid in the container, it is not allowed to spray directly at the liquid level to prevent splashing; When using potassium phosphate dry powder fire extinguisher to put out solid combustible fire, it should be sprayed from top to bottom and from left to right at the place where the quasi fire is most violent< br />
