Dust removal equipment includes electrostatic precipitators, bag dust collectors, cyclone dust collectors, wet dust collectors, etc. At present, the common types of electrostatic precipitators in China are divided into vertical and horizontal types according to the direction of air flow. They are divided into plate type and tube type according to the type of precipitation electrode. According to the method of removing dust on the precipitation electrode plate, they are divided into dry type, wet type, and rotating umbrella type with high efficiency. Electrostatic precipitators and special high-voltage electrostatic precipitators for machines, etc. Most types of bag dust collectors are named according to the dust cleaning method. They are mainly divided into three types: mechanical vibration bag dust collectors, atmospheric backflush bag dust collectors and pulse injection bag dust collectors. They are suitable for submicron particles. Fine dust with a larger diameter has higher classification dust removal efficiency and can handle a wide range of gas volumes. Cyclone dust removal equipment is a dust removal equipment that uses the principle of accelerated rotation of gas to generate centrifugal force, and the rotating solid dust is separated from the gas. The types of wet dust collectors are classified from different angles. According to the structural type, they can be divided into water storage type wet dust collectors, pressurized water spray type and forced rotation spray type wet desulfurization dust collectors. According to the energy consumption, it can be divided into low energy consumption and high energy consumption. According to the gas-liquid contact method, it can be divided into integral and dispersed contact wet dust collectors. It is suitable for industries such as metallurgy, coal, chemical industry, casting, power generation, building materials and refractory materials.