Waste incineration fly ash is the dust collected by the flue gas dust collection system of waste incineration power plant. It contains organic pollutants such as dioxin, furan and many kinds of soluble heavy metals such as Pb, Zn, cr. if it is not handled properly, it will enter the environment again and pollute the groundwater source, which will harm human beings.
At present, the vacuum filter used in China has some defects, such as high failure rate, high moisture content of mud cake after separation and high slag content of filtrate. HAI SHEN MACHINERY&ELECTRIC GENERAL WORKS (XIANGSHAN) takes advantage of the technical advantages of military enterprises and cooperates with a well-known Cement Co., Ltd. in China, the solid-liquid separation of fly ash washing slurry is successfully carried out by using the two-stage series horizontal screw centrifugal unit provided by HAI SHEN MACHINERY&ELECTRIC GENERAL WORKS (XIANGSHAN) and the advanced fly ash washing technology of the well-known Cement Co., Ltd The only fly ash washing slurry production line. After more than one year's successful operation, the centrifugal unit has successfully replaced the vacuum filter due to its smooth operation, high automation program, low failure rate and good separation effect. The project obtained the invention patent certificate issued by the State Intellectual Property Office of the people's Republic of China at the end of December 2016.