Cause analysis of failure of 3. 13 belt conveyor in Shangwan Coal Mine

Does the subject want to ask "the cause of the accident of 3. 13 belt conveyor in Shangwan Coal Mine"? Caused by improper operation of the staff. The belt conveyor in Shangwan Coal Mine is a special coal transportation tool for modern coal mines produced by Songyang coal machine. The accident in this factory was caused by the improper operation of its personnel, which led to the disorder of its machine when it was running empty goods, resulting in a short circuit and then a fire, which led to the fire accident.