In November, a cold hydrogenation slurry filtration system designed and manufactured by SHINKAI for a polysilicon plant in China was officially started up. The system successfully helped the owner to recover 100% silicon tetra chloride from the viscous slurry with zero energy consumption and zero pollution. After the successful commissioning of the system, it will add tens of millions of dollars of economic benefits to the plant every year, and at the same time greatly reduce the environmental pressure on the polysilicon plant.
At present, the production of polysilicon is dominated by the modified Siemens method and the silane method. Modified Siemens method production process of cold hydrogenation unit of the rapid cooling tower’s bottom will produce a large number of slurries, these slurries are mainly composed of silicon tetra chloride, silica powder, aluminum trichloride, has a high viscosity, easy to slate, corrosive, can not be contacted with the air characteristics, has always been poly-silicon enterprises to deal with the problem. Now most of the enterprises are using dryers or drum filters to deal with these cold hydrogenation slurry, these treatments are not only need long processing time, high energy consumption, and silicon tetra chloride can not be effectively recovered.
SHINKAI has been deeply engaged in the poly-silicon whole process filtration industry for many years, and is the developer and leader of silicon powder filtration solutions. With a deep understanding of the poly-silicon process, and in response to the actual situation and pain points of customers, SHINKAI has developed a set of cold hydrogenation slurry filtration system with a core filter as the core equipment, which can automatically dry, blow back and slag discharge. With low energy consumption and high recovery rate of silicon tetra chloride, it completely solves the problems of cold hydrogenation slurry, which is difficult to handle and easy to cause secondary pollution.
SHINKAI’s filtration systems are widely used in various units of poly-silicon production plants, More Cold Hydrogenation Slurry Filtration Systems, please contact us to get more details.