A bleaching and beating device for certificate paper production

Abstract

The invention discloses a bleaching and pulping device for producing bond paper. The bleaching and pulping device comprises a device body and bleaching chambers, wherein each bleaching chamber is arranged on one side inside the device body; in addition, stirring paddles are arranged inside the bleaching chambers; paddle plates are fixedly arranged on one side of the stirring paddles through connecting rods; a mesh cap is connected to the lower surface of each stirring paddle through a bearing; besides, screw blades are arranged on the surface of each stirring paddle inside the corresponding mesh cap. In the bleaching and pulping device disclosed by the invention, two beating bars are arranged inside a beating chamber; in addition, a plurality of blades are equidistantly arranged on the surface of each beating rod in a staggered manner, so that paper pulp can be sufficiently smashed; meanwhile, the mesh caps and the blades are arranged below stirring rods; the paper pulp can be sufficiently ground by rotating the blades inside the mesh caps, and become more delicate, so that the processing quality of paper is improved; the side wall of the arranged beating chamber is of a hollowed mesh structure, so that the unbeaten paper pulp can be limited in always being continuously beaten in the beating chamber.

Description

technical field [0001] The invention relates to the technical field of certificate paper, in particular to a bleaching and beating device for producing certificate paper. Background technique [0002] Certificate paper is a kind of gravure printing paper. Paper for printing banknotes, bonds and various certificates, etc. The paper is strong, wear-resistant and fold-resistant, and has high durability. Bleached chemical wood pulp or bleached new rag pulp is used as raw material, and some cotton and hemp pulp can also be mixed, and the pulp is free-formed by long fibers. Generally, no filler is added, and it is made by Fourdrinier paper machine. Traditional pulping refers to the production process of using chemical methods, mechanical methods or a combination of both to dissociate plant fiber raw materials into natural or bleached pulp. [0003] The traditionally used pulp bleaching tower directly adopts a pulp input port and a bleaching agent inlet, and the two pipelines ar...

AI Technical Summary

Problems solved by technology

In this process, high pulp concentration helps to reduce the use of bleaching solution, but pulp with too high concentration is prone to uneven mixing of bleaching agent and pulp, reducing bleaching efficiency

In addition, some traditional beating devices block the pulp outlet due to incomplete beating, which not only affects the processing quality of paper, but also affects production efficiency

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