1. According to the actual situation, disengage the automatic grinding group when necessary, manually control the amount of coal, stabilize the load and steam temperature and vapor pressure. Immediately contact the coal handling duty officer to check the coal level of the original coal hopper to determine whether the original coal hopper is empty;
2. Check the coal feeder on the spot. If the lower coal pipe is blocked due to coal wetness, immediately knock on the coal hopper at the upper gate of the coal feeder or dredge the blocked part of the lower coal pipe;
3. If it is determined that the four blocks are blocked, the beating is invalid; the coal feeder and its equipment are faulty, the coal feeder should be stopped, and the coal vertical roller mill should be stopped after the coal in the coal vertical roller mill is blown out and cooled, and contact immediately Overhaul treatment;
4. When the coal vertical roller mill is not tripped and the raw coal enters the coal vertical roller mill intermittently, the coal vertical roller mill must be cut to manual adjustment in time, strictly control the outlet temperature not to exceed 80 ℃, and put in fire-fighting steam when necessary to avoid air dust caused by the broken coal The ratio imbalance causes dust explosion in the coal vertical roller mill;