A dope pressure screen for tissue paper production

Abstract

The invention relates to a coating pressure sieve for producing tissue paper. The coating pressure sieve comprises a cylindrical sieve mesh and a sieve drum, wherein the sieve drum and the sieve mesh are coaxially installed by a main shaft; the sieve drum comprises a top surface and a peripheral surface; a plurality of conical surfaces are arranged on the top surface; the peripheral surface is provided with a spiral guiding plate and a scraper arranged along the axis; the scraper is connected with the peripheral surface of the sieve drum by an elastic hinge; and the inner side surface of the sieve mesh is provided with a plurality of ribs which extend along the axis direction. The coating pressure sieve for producing the tissue paper adopts an active mode for filtering; the driver and the sieve drum capable of rotating with the driver are arranged, the spiral guiding plate is arranged on the sieve drum, the scraper is arranged at the outer side of the guiding plate, and in rotation, coating particles without passing through the sieve mesh can be scraped off by the scraper on the sieve drum, so that the particles can be effectively prevented from adhering or accumulating on the surface of the sieve mesh 20 and further blocking the sieve mesh, and the coating quality and the coating efficiency can be effectively improved.

Description

technical field [0001] The invention relates to a filter sieve, in particular to a pressure sieve used in printing or papermaking industry to apply paint or paint to filter paint when coloring. Background technique [0002] In industries such as papermaking and printing, the uniformity of paint coating or pigment coloring directly affects the quality of paper and printing. In the past, when using paint or pigments, the paint or pigments were mixed with solvents such as water to adjust to a suitable viscosity, and then It is transported to the coating knife or printing knife through the delivery pipe. In order to prevent the larger particles in the paint from entering the coating knife or printing knife and affecting the coating or printing quality, a filter screen is required on the delivery pipe to screen out undissolved particles. Larger particles. According to the structural form, the filter screen usually has two types: closed type and open type. At present, the closed ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fully enclosed coating pressure screen for tissue paper production with a compact structure and good filtering effect, aiming to solve the technical defect of poor filtering effect of existing coating pressure screens for tissue paper production

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