After long-term use of concrete mixing plant, there will be some inevitable wear and tear. At this time, it is necessary to maintain the overall equipment of the concrete batching plant. The following will introduce the maintenance system of the overall equipment of the concrete batching plant:
(1) After each work, the maintenance items should be cleaned up: clean the dust accumulation inside and outside the mixing tank wall, the concrete residue on the discharge port, the mixing shaft and the discharge door, rinse these places with water, and put a small amount of it if necessary. The stones and water are stirred for a few minutes and released. Wash the car, the additive tank and its supply system with water.
⑵Weekly inspection and maintenance items:
①Whether the manual oil pump needs to be filled with grease;
② All lubrication points must be lubricated;
③ Check the wear of blades, scrapers, stirring arms, etc. If necessary, adjust the gap or replace it;
④ Check whether the connecting bolts of the vibrator are loose;
⑤ Check the quality of the lubricating oil in the crankcase of the air compressor;
⑥ Check whether the contactor in the electrical appliance and the static contact of the intermediate relay are damaged or burned out;
(3) Regularly check and maintain items to check the sealing gap of the discharge door. When the gap is too large, it should be adjusted. The sealing gap is generally about 2mm.
①The blades are generally still used when they are still adjustable (including readjustment after turning to 180°C). When the liner fixing countersunk head screws are exposed on the surface of the liner, the liner should be replaced;
② Check whether the reducer lubrication is deteriorated, or less than the specified requirements, add or replace if necessary;
③Check the water supply and additive system, and there should be no leakage;
④Ancillary components, such as electric motors, gear reducers, cylinders, vibrators, air filters, etc., shall be maintained and repaired according to the normal track and the requirements of the manufacturer's instruction manual;
⑤ The concrete batching plant should be maintained once every six months, and the reliability of all bolted parts should be checked. During the overhaul period, it should be overhauled once every 4,000 hours of work.
⑷Repair and maintenance of feeding belt conveyor:
①The inside of the reduction motor is equipped with No. 150 synthetic pressure industrial gear oil, and the oil filling amount must be strictly in accordance with the value in the nameplate. Too much or too little oil can affect the efficiency and normal operation of the drum motor. The electric drum should be replaced after working for 200-300 hours, and the oil should be changed every 500 hours. When changing the oil, the two oil plugs should be unscrewed together, and the drum should be rotated to keep it in a low position until the oil inside the geared motor. until all are finished.
②Inject ZG-5 calcium grade grease into the bearing chamber of the tail tension roller, and apply grease on the lead screw. After each shift, the residue on the bottom surface of the tape, the roller and the surface of the roller should be cleaned up in time.
