The grinder is widely used in the pulverizing system of thermal power plants, but the vibration of its transmission shaft and the broken teeth of the small cones have always plagued the safe production of the system. The pulverizing system of our factory also suffered from these two defects in the previous period. It even affects the fuel supply of the unit. After many adjustments by the maintenance personnel, the effect is remarkable, and the vibration of the drive shaft is less than 0.08mm.
The operator must be familiar with the general structure and performance of the equipment, and must not use the equipment beyond its performance. The sum of the volume of the parts and the grinding body shall not exceed 90% of the volume of the hopper. After the power is turned on, carry out idling operation, and the operation should be stable and abnormal noise. Otherwise, it should be stopped for inspection. Before the workpiece is ground, the workpiece must be deoiled and decontaminated. During the processing, the abrasive must be added in time and the amount of water added according to the grinding situation of the workpiece.
When the work is completed and shut down, cut off the power supply, clean the equipment, and do a good job in equipment maintenance. Safety operating procedures Before starting the machine, check the fastening screws and check whether the rotation of the motor shaft is flexible. When the equipment is in operation, it should stop immediately if any abnormality is found.
Every 6 months, the bearing oil port of the vibration motor or rotating shaft should be filled with lithium grease. After get off work, the power should be cut off. Load test run. The host and analyzer are turned correctly. The no-load trial operation of the main engine is based on the steering requirements, and the running time is not less than 1h.
If the grinding machine and grinding fixture are not used for a long time, the grinding fixture should be immersed in ethyl chloride and cleaned with ultrasonic waves, and then coated with protective oil and stored in a special tool box. The lubrication condition of each transmission part should be checked regularly and grease should be added in time. Grease or other grease should be used to lubricate the system every month, prevent rust and prevent rust.
Anti-corrosion treatment.