在化工企业里，常会遇到点火源，常见的有加热炉火、反应热、电火花、维修用火、机械摩擦热、撞击火星及吸烟等。这些点火源经常是引起易燃易爆物质着火爆炸的原因。控制这类火源的使用范围，严格用火管理，对于防火防爆具有十分重要的意义。1．明火的控制化工生产中的明火，主 In the chemical industry, often encounter ignition source, a common furnace heat, heat of reaction, sparks, maintenance of fire, mechanical friction heat, impact on Mars and smoking. These sources of ignition are often the cause of a fire and explosion of flammable and explosive materials. Control of the use of such sources of fire, strict fire management, for fire prevention and explosion is of great significance. 1. Open flame control Chemical production of open flame, Lord