Vacuum pulp washer for papermaking

Abstract

The invention relates to the technical field of papermaking equipment, and discloses a vacuum pulp washer for papermaking. The vacuum pulp washer comprises a machine body, wherein a pulp inlet is formed in one side of an inner cavity of the machine body, and a pulp outlet is formed in the other side of the inner cavity of the machine body. According to the vacuum pulp washer for papermaking, the air inlet pipe is matched with an air storage tank, the air storage tank is matched with a partition cavity formed by a second ventilation piston, and a first ventilation piston and a partition plate, a permanent magnet is arranged at the matched position of the first ventilation piston and a ventilation arc plate; magnetic poles are arranged left and right; the bending direction of a bent groove is matched with a scraper; after the first ventilation piston is matched with the ventilation arc plate, the bent groove cannot rotate along with the rotation of a shaft sleeve; and the exhaust direction of the bent groove is always matched with the scraper, namely, air in the bent groove is injected into a cavity formed by every two partition plates in sequence under the rotation of the shaft sleeve, and when air is injected into the cavity, the scraper is used for scraping pulp on the drum surface of an air injection cavity, so the scraping difficulty of the scraper is reduced, and the pulp can be smoothly scraped.

Description

technical field [0001] The invention relates to the technical field of papermaking equipment, in particular to a papermaking vacuum pulp washer. Background technique [0002] Vacuum pulp washer is a common pulp washing equipment, suitable for various pulps such as wood pulp and straw pulp. It is the key technical equipment for solving wastewater pollution and implementing alkali recovery projects in the paper industry. It is composed of distributing valve, washing device, pulping device, etc., which can be used alone or in series. [0003] The entire drum surface of the existing washing machine drum is divided into several cells, each cell is connected with the valve seat cell through the filtrate flow channel, and the valve core divides the entire end surface into a vacuum area, a pulp area and an exhaust area , due to the vacuum suction, the liquid in the slurry flows away from the filtrate flow channel and the distribution valve, and the slurry is adsorbed on the outer s...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a vacuum pulp washer for papermaking, which has the advantages of larger pulp washing area, higher efficiency, and more sufficient scraping, and solves the problems of large pulp adsorption, difficulty in scraping, and low pulp washing efficiency

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