Pulp washer

Abstract

The invention discloses a pulp washer, and belongs to the technical field of pulping equipment. The pulp washer comprises a rotating drum, wherein the rotating drum is driven by a power device to rotate in an axial direction; two ends of the rotating drum are sealed; a plurality of leaking holes are formed in the rotating drum; a filtering net is fixedly mounted on the inner surface of the rotating drum; a conveying channel of which the position is fixed is mounted inside the rotating drum; the conveying channel extends outside one end of the rotating drum; the conveying channel comprises a pulp feeding channel and a pulp discharge channel which are not communicated with each other; a plurality of pulp distributors facing to the filtering net are arranged below the conveying channel; the pulp distributors are communicated with the pulp feeding channel; a pulp collecting tank is arranged above the conveying channel; the upper end of the pulp collecting tank is opened and faces to the filtering net positioned above the conveying channel; the pulp collecting tank is communicated with the pulp discharge channel; a blowing tube is arranged above the rotating drum; and a plurality of nozzles corresponding to the leaking holes are arranged on the blowing tube. Not only is the filtering net damage rate low, but also pulp can be conveniently collected, and the pulping efficiency is high, so that the pulping cost can be lowered. The pulp washer can be widely used in the pulping industry.

Description

technical field [0001] The invention relates to the technical field of pulping equipment, in particular to a pulp washer. Background technique [0002] When using plant fibers for pulping, it includes softening, decomposition, pulp washing and other steps, especially in the pulp washing process, the efficiency of the pulp washer is the key factor affecting the production efficiency of the pulping process, and the current pulp washer uses extrusion Dehydration method, for example, Chinese utility model patent 200920023846.1 discloses a high-speed pulp washer, with a chassis on the frame, an upper casing cover on the chassis, grooved breast rollers and drive couch rollers are horizontally arranged on the frame, The endless polyester mesh is connected with the two rolls respectively, the pulp distributor is set above the side of the grooved breast roll, the moving water needle and the motor are installed on the upper case cover, and the moving scraper and the motor are installe...

AI Technical Summary

Problems solved by technology

The slurry of these washing machines is arranged on the filter screen first, and the scraper is used to collect the pulp after dehydration. During the pulp collection process, the scraper will press the slurry into the mesh of the filter screen to block the mesh and cause dehydration. The efficiency is low, the slurry quality is low, and the filter screen rotates at a high speed on the grooved and flat rolls, which will also cause the filter screen to wear, fold or even tear, resulting in damage to the filter screen. Low life, increased pulping cost

Images