Compound fertilizer tail gas purifying system

The utility model provides a compound fertilizer tail gas purifying system, includes cyclone, washing box, settling basin, cistern, pressure filter, alkali lye storage tank and removes the acid tower,and compound fertilizer's tail gas enters into the washing box got rid of most dust by cyclone after, gets rid of the remaining dust in the tail gas by the tail gas washing device, and the dust of being got rid of is collected by settling basin and pressure filter, and the clear water foldback of settling basin overflow continues the use to the washing box in, compound fertilizer's tail gas afterremoving dust is acid gas, and acid gas enters into except that the acid tower, and the alkali lye that the shower sprayed out carries out the neutralization to acidic tail gas, realizes the zero pollutant emission of compound fertilizer production tail gas. 种复合肥尾气净化系统，包括旋风分离器、洗涤箱、沉降池、蓄水池、压滤机、碱液储罐和除酸塔，复合肥尾气由旋风分离器去除大部分粉尘后，进入到洗涤箱中，由尾气洗涤装置去除尾气中的余下粉尘，被去除的粉尘由沉降池和压滤机收集，沉降池溢流的清水返送到洗涤箱中继续使用；经过除尘后的复合肥尾气为酸性气体，酸性气体进入到除酸塔中，喷淋管喷淋出的碱液对