Due to the effect of static electricity, the reactor is prone to material blockage, blockage of reactor discharge pipeline or outlet during production. The reactor is a dual discharge line that normally requires dismantling and cleaning of faulty parts during production. During disassembly and cleaning, it is easy to cause fire, explosion and personal injury. Countermeasure is to strengthen the displacement of the pipeline should be taken to strengthen the on-site command, field personnel should strengthen the contact with the control room, the main control room in the process of pressure of qualifying personnel shall be notified to leave the uniform pressure field personnel, prevent damage material, the new homework personnel should strictly wear labor insurance clothing, use explosion-proof tools, prevent all kinds of spark, finishing the scene material should be far from them.