PP washing tower is a new type of industrial waste gas treatment equipment. It is produced on the basis of the industrial waste gas purifier with floating packing layer. It is widely used in the pretreatment of industrial waste gas treatment and dust removal. The purification effect is very good. It is commonly used in the treatment of acid and alkali waste gas. Processing equipment. The PP washing tower produced by our company is different from the existing washing tower on the market. It is made of lighter polypropylene in plastic, that is, PP material. The washing tower produced by our company is mainly divided into two types: packing. Towers and swirling towers, while packed towers are relatively widely used. When there is more dust in the exhaust gas, a swirling tower can be used. The PP washing tower has the characteristics of simple structure, low energy consumption and high purification efficiency, and can effectively remove hydrogen chloride gas (HCl), hydrogen fluoride gas (HF), ammonia gas (NH3), sulfuric acid mist (H2SO4), chromic acid mist (CrO3). Water-soluble gas such as hydrogen gas (HCN), alkali vapor (NaOH), hydrogen sulfide gas (H2S), and formalin (HCHO). The acid mist exhaust gas is introduced into the purification tower by the air duct, and passes through the packing layer. The exhaust gas and the sodium hydroxide absorption liquid are fully contacted by the gas-liquid two-phase to absorb the neutralization reaction, and the acid mist exhaust gas is purified, and then dehydrated and defogged by the defogging plate. The fan is discharged into the atmosphere. After the bottom of the tower is pressurized by the water pump, the absorption liquid is sprayed on the top of the tower, and then returned to the bottom of the tower for recycling. The purified acid mist exhaust gas meets national emission standards.