Novel blanket base net for press part of paper machine

Abstract

The invention discloses a novel blanket base net for a press part of a paper machine. The blanket base net is formed by spiral rings and threads, a plurality of spiral rings are arranged in parallel to form spiral ring arrays, a plurality of spiral ring arrays are interwoven to form the blanket base net, two adjacent spiral ring arrays are connected by threads, and spiral rings of two adjacent spiral ring arrays are arranged in a staggered way. According to the blanket base net, a spiral net structure formed by the spiral rings and the threads is adopted; compared with conventional blanket base nets woven by warps and wefts, the blanket base net can be produced in advance in a large quantity according to a same standard to be stored, and can be taken for use instantly according to different sizes of the paper machines, and therefore, convenience is greatly improved, and production efficiency is improved; the porosity of the blanket base net of a spiral net structure is greatly increased, good stress tolerance is kept in the pressure region, void volume is greatly improved, the dehydrating amount of wet paper sheets in the pressure region is greatly increased, and the pressing efficiency is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of papermaking press felts, and in particular relates to a new felt base net in the press section of a paper machine. Background technique [0002] In the papermaking process, the press section of the paper machine is an important part of the drying paper sheet, which mainly plays the role of transferring the wet paper sheet and absorbing the moisture squeezed out of the wet paper sheet in the nip, increasing the strength of the wet paper web and improving the drying of the drying section ability. [0003] The papermaking press felt is a special dehydration equipment used in the press section of the paper machine. It is a professional textile that plays the role of dehydration, supporting wet paper, modifying paper, and transferring paper. The main function is dehydration. During the pressing process Will carry a lot of moisture. This requires that the felt must have good porosity to facilitate water flow,...

AI Technical Summary

Problems solved by technology

The felts used by different paper machines are completely different in size. In this way, it is bound to cause the loom to be unable to mass-produce the base web in large quantities, and can only weave according to the size required by the customer, and the production efficiency is very low.

In the press felt of the prior art, when the base web is pressed in the press nip, the voids of the felt are greatly compressed, which in turn affects the dehydration efficiency of the felt in the nip

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