The purpose of pulp bleaching is to remove residual lignin and pigments from the pulp after cooking, improve the whiteness of the pulp, and give the pulp a pure white color. The bleaching machine is a widely used bleaching equipment, which consists of components such as a bleaching tank screw propeller and a washing drum. The pulp and bleach are placed in a pool and continuously added with washing water. With the help of a screw propeller, they circulate in the pool to complete the process of mixing and chemical reaction. The water containing bleaching products and residual bleaching solution is discharged through the inner cavity of the washing drum to produce pure white pulp.

Working principle and main structure of high-speed washing machine

The equipment consists of chest roller, couch roller, filter screen, slurry inlet system, slurry outlet system, drainage system, spray system, transmission system, frame, hood, etc. The chest roller is a rubber groove roller, which can effectively prevent slurry splashing caused by high-speed operation of the mesh roller. The pressure roller is a rubber flat roller, which supplements the uneven squeezing of the slurry caused by the groove roller; Peel off the washed slurry onto the discharge screw using a scraper on the roller; The filter is made of polyester mesh with guide strips on both sides to prevent the mesh from deviating; The function of the hood is to collect the released moisture and prevent it from splashing around and affecting the working environment.

Main features: High efficiency of impurity removal: The material layer between the polyester mesh and the roller is very thin, and the process of impurity removal from the slurry is short. The obstruction from the slurry layer during the removal process is small. In addition, the centrifugal force generated by high-speed operation makes it easy for small impurities such as fillers and ink particles to be removed. After washing, the ash removal rate of the slurry reaches over 99%