High temperature resistant needled filter felt

The utility model discloses a high temperature resistant needled filter felt, including the basic unit, set up filter layer, bottom surperficial about the basic unit to and set up on the surperficial top layer of filter layer, the top layer is ultrafine fiber layer, the filter layer is PTFE fiber and PPS fibre composite fiber layer, the bottom is glass fiber and PTFE fiber composite fiber layer, the basic unit is superfine fiber and PTFE fiber composite fiber layer. The utility model discloses have good chemical property, good filtration efficiency, good ash cleaning property and longer life, its excellent performance is that other filtering material are incomparable, fibrous layer inner structure is tortuous route, and the hole size is little, and the dynamic porosity is high, the resistance is little, air permeability is good, and the dust collection efficiency exceedes ordinary filter material.