Prefiltering extruder

The utility model provides a prefiltering extruder, includes gear motor and cartridge filter, it has the screw axis to run through in the cartridge filter, said screw axis links to each other with gear motor's output shaft, is provided with feed inlet and discharge gate on the cartridge filter, is close to said discharge gate department is provided with the cutting off cutter, still including being used for the drive the cutting off cutter motor of cutting off cutter, it has the ejection of compact nib of being no less than two to open on the discharge gate. After the technical solution is adopted, compared with the prior art, the utility model following beneficial effect has: can the processing of mud form thing be long banding idiosome, can produce the idiosome of different length as required simultaneously, the feature of environmental protection is good, with low costs.