| abstract |
The utility model relates to a mixing device, in particular to a vacuum extruder with a filtering function. The vacuum extruder comprises a frame, an upper mixing and filtering part, a middle extrusion mechanism and a main extrusion body, wherein the upper mixing and filtering part, the middle extrusion mechanism and the main extrusion body are mounted above the frame, adopt the same main structures and all comprise extrusion cavities and screw shafts which are driven by motors; the screw shafts are mounted in the extrusion cavities for accommodating materials; the middle extrusion mechanism is connected to the main extrusion body through a vacuum box; a jacket for holding circulating cooling water is arranged outside the extrusion cavity of the main extrusion body. The vacuum extruder has large extrusion pressure, adopts a three-layer design, can effectively filter out impurities from raw materials, and can extrude high-density honeycomb SCR denitration catalyst. |