Paper pulp residue filtering plate with micropore adjustable structure

Abstract

The invention discloses a paper pulp residue filtering plate with a micropore adjustable structure, and belongs to the field of paper pulp filtration. According to the invention, by additionally arranging a pore-adjusting double-screen plate, the residue filtering plate is of a double-screen plate structure, when a blocking phenomenon occurs, a reversible self-separation sheet below the pore-adjusting double-screen plate holds part of infiltrating water, the weight is increased, and a pull-down force is generated on a movable comb sheet, so that the effect of increasing the pore size of the filtering pores can be achieved, water infiltration can be accelerated, and the water separation efficiency in paper pulp can be remarkably improved; and through pretreatment of the reversible self-separation sheet, multiple water diversion sheets are subjected to the action of a double-melt liquid, and a soft film connected with the multiple water diversion sheets is formed on the reversible self-separation sheet, so that the strength of the soft film is reduced when the soft film encounters water, furthermore, when the filtering plate is blocked, the soft film can be gradually disintegrated, the reversible self-separation sheet is divided into a plurality of water diversion sheets, the effect of relieving blockage can be continuously achieved, and the effect of reminding workers can be achieved.

Description

technical field [0001] The invention relates to the field of pulp filtration, in particular to a pulp filter residue plate with an adjustable micropore structure. Background technique [0002] Pulp filtration is an important step in the papermaking process. Pulp filtration refers to separating pulp water into water and slurry through a filter device, and collecting the separated slurry. The pulp filter residue device is an important equipment used for filtration in the base paper manufacturing process. [0003] When pulp is filtered, the raw paper is beaten into pulp in water and then enters the pulp filtering device for dehydration processing, so that more water is separated from the pulp. However, when the pulp is filtered, the slurry is easy to adhere to the filter holes, causing the filter holes to be blocked and affecting the separation efficiency. For example, the application document with the application number CN201710995338.9 discloses "A Pulp Filtration Device", t...

AI Technical Summary

Problems solved by technology

However, when the pulp is filtered, the slurry is easy to adhere to the filter holes, causing the filter holes to be blocked and affecting the separation efficiency. For example, the application document with the application number CN201710995338.9 discloses "A Pulp Filtration Device", the main content of which is: When the pulp filter device is working, the pulp liquid enters from the feed port and flows through the buffer plate, the pulp liquid is buffered by the buffer plate and then enters the pulp tank, and the filter in the pulp tank separates the moisture and pulp in the pulp liquid, Moisture and pulp are discharged from the drain port and the discharge port respectively and collected

[0004] However, this patent is only able to filter the pulp, and it lacks a good solution to the clogging phenomenon, resulting in the relatively low efficiency of pulp moisture separation.

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