(1) Explosion at the bottom of the furnace
1. Cause of the accident:
1)
The furnace explosion caused by the closure of the flap of the self-controlled gas furnace;
2)
When the gas is supplied, the bottom of the furnace explodes due to the excessive pressure of the two furnaces;
3)
The bottom of the furnace is not tightly sealed, causing the furnace to explode;
4)
When the gas is supplied, the bell valve of the furnace falls prematurely, resulting in the explosion of the bottom of the furnace;
5)
The interlock fails, the blower or pressurizer trips, resulting in an explosion at the bottom of the furnace;
2. Preventive measures:
1)
When using automatic adjustment, the flow rate should not be too small to prevent gas backflow;
2)
When the gas supply is stopped, it is necessary to unify the command, cooperate closely, and have a clear division of labor;
3)
Regularly check whether the holes and water seals are correct;
4)
Regularly check whether each interlock is correct;