Fiberizer

Abstract

The paste mill includes grinding disc mechanism, transmission mechanism, motor, and casing on the pedestal. The grinding disc mechanism includes rotating grinding disc installed on the end of the rotation shaft, and fixed grinding disc matched with the rotating grinding disc and installed on the inner wall of the casing. On the toothed surfaces of the rotating grinding disc and the fixed grinding disc, there are alternately set concentric barriers to form shearing regions. Compared with available technology, the present invention has high efficiency and low power consumption.

Description

technical field [0001] The invention mainly relates to the field of pulping and papermaking, in particular to a pulp refiner. Background technique [0002] In the prior art, the refining equipment is mainly a refiner (including cylindrical and conical) and a disc refiner (double disc and single disc), and the latter is more widely used. The disc refiner is divided into three types according to the concentration of the slurry to be ground: high concentration, medium concentration and low concentration. It is generally considered that the concentration of the slurry is less than 5% as low concentration, 5% to 12% as medium concentration, and more than 12% as It is difficult for the slurry with high concentration and too high concentration to enter the narrow gap between the teeth of the grinding disc, forming the so-called "bridging" phenomenon, especially for the slurry with thicker and longer fibers, this phenomenon is more serious. In some traditional technologies, in orde...

AI Technical Summary

Problems solved by technology

In addition, most of the pulp that has not been completely ground is pulp lumps and lumps, which makes many tooth surfaces unable to hang the pulp

From this, it can be imagined that the larger the radius of the grinding disc, the more serious the phenomenon of no slurry hanging on the tooth surface. However, in order to improve the beating degree of the slurry, the operator only needs to increase the pressure between the two grinding discs, so that it is easy to make a small amount of slurry hanging. The pressure on the tooth surface of the slurry increases, causing the fibers to be cut off, and a large number of long fibers become short fibers, which reduces the tensile strength of the paper, and due to the uneven amount of slurry on the entire tooth surface, many tooth surfaces are not hung Slurry, these tooth surfaces that are not hung with slurry cause direct friction between the metal surfaces, the noise is deafening, and the temperature of the slurry at the mill outlet rises, so a large amount of energy is converted into heat and sound energy, resulting in serious power consumption.

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