White oil filtering and recovering system for production of PTFE (polytetrafluoroethylene) fiber filter cloth

The invention belongs to the technical field of recycling of white oil impurities and particularly relates to a white oil filtering and recovering system for production of PTFE (polytetrafluoroethylene) fiber filter cloth. The system comprises a production system which consists of filling equipment, a mixer, forming equipment and degreasing equipment which are connected sequentially, and a gas-state white oil collecting tank is connected behind the degreasing equipment and is equipped with a circulating water cooling device; the gas-state white oil collecting tank is sequentially connected with a liquid-stage recovery oil tank, oil-water separation and filtration equipment, PTFE microporous fine filters, white oil decolorizers, a white oil storage tank, detection equipment and a raw oil tank, and the raw oil tank is connected with the filling equipment. The white oil filtering and recovering system for production of the PTFE fiber filter cloth is reasonable in structure design, can recover and repeatedly util