In the mine crushing work, the working conditions of the coal pulverizer are very bad, and the wear problem of the coal pulverizer is also inevitable. Therefore, the coal pulverizer must pay attention to regular maintenance and regular maintenance during the use and operation. Excessive wear and even breakage of coal pulverizer parts are often caused by incorrect operation and poor maintenance. Correct operation and careful maintenance are important ways to prolong the service life of coal pulverizers and improve the operation rate of the equipment. In the daily maintenance work, for the correct judgment of the failure of the coal pulverizer, the cause is accurately analyzed, and the solution is quickly taken.
In addition to the correct operation of the coal pulverizer, it also depends on maintenance, and the maintenance of the coal pulverizer is the basis of repair. As long as the coal pulverizer is used frequently, as long as it is maintained and inspected frequently, and the wear cycle of the equipment parts is mastered, the defects of the coal pulverizer parts can be found early and repaired and replaced in time, so that the coal pulverizer will not be scrapped because it cannot be repaired. seriously. Therefore, timely repair of coal pulverizers is an important link to ensure normal production.
The wear of coal pulverizer parts working under certain conditions usually has a certain regularity. After a certain period of work, it needs to be repaired or replaced. This time interval is called the wear cycle of coal pulverizer parts, or called coal pulverizer parts. The useful life of the shredder parts.
According to the length of the wear cycle of the coal pulverizer, it is necessary to carry out planned maintenance of the equipment. Planned maintenance is divided into minor repairs, medium repairs and major repairs. Minor repair is the main repair form of the coal pulverizer in the crushing workshop, which is the daily maintenance and repair work of the coal pulverizer. During minor repairs, it is mainly to check and replace severely worn parts, such as broken tooth plates and thrust plate bearing seats, etc.; repair journals, scrape bearings; adjust and tighten bolts; check the lubrication system and supplement the amount of lubricating oil, etc.
The medium repair of the coal pulverizer is carried out on the basis of the minor repair. According to the inspections and problems found in the minor repairs, make repair plans and determine the items that need to be replaced. During the middle repair, it is often necessary to disassemble the whole unit, check the use status of important parts in detail, and solve the repair and replacement of parts that cannot be solved in the minor repair.
Coal crusher overhaul is a more thorough repair. In addition to all the work of medium and minor repairs, major repairs mainly include dismantling all parts of the machine, conducting careful and comprehensive inspections, repairing or replacing all wear parts, and conducting a comprehensive performance measurement of the overhauled coal pulverizer to achieve the same level as the original coal. The pulverizer has the same performance.
