Filtering device for paper pulp water filtering

Abstract

The invention discloses a filtering device for paper pulp water filtering. The filtering device comprises a pulp delivery pipe, an oblique filtering net and a pulp collecting tank, wherein a buffer hopper is arranged at the lower side of a pulp outlet of the pulp delivery pipe, the filtering net is fixedly arranged at the front end of the bottom surface of the buffer hopper, the pulp collecting tank is distributed at the lower side of the lower end of the filtering net, and a concentration detector is fixedly arranged at the bottom surface of the inner side of the buffer hopper; an oblique flow guide plate is arranged at the back side of the filtering net, a water collecting tank is arranged at the lower side of the lower end of the flow guide plate and is fixedly arranged at both side walls of the pulp collecting tank, the upper end of the flow guide plate is bent to form a horizontal connecting plate, and the connecting plate is fixedly arranged on a slide plate; a plurality of slideblocks are fixedly arranged at the upper end surface of the slide plate, and are inserted and sleeved onto a guide rail; the guide rail is fixedly arranged at the bottom surface of the buffer hopper;an air cylinder collecting plate is fixedly arranged on the slide plate; a horizontal air cylinder is fixedly arranged at the bottom surface of the buffer hopper through an air cylinder installationplate; a piston rod of the air cylinder penetrates through the air cylinder installation plate and is fixedly arranged on the air cylinder connecting plate. The filtering device has the advantages that the effect of elastic adjusting is realized, and the paper pulp reaching the saturation concentration is not subject to the water filtering by the filtering net.

Description

Technical field: [0001] The invention relates to the technical field of papermaking equipment, and more specifically relates to a pulp water filtration device. Background technique: [0002] The pulp filter device is used to filter out the moisture in the pulp to control the concentration of the pulp. The current pulp filter device generally adopts the inclined vertical screen frame recovery method. The advantage of this method is that it does not require power and uses gravity to achieve filtration. In order to achieve the purpose of energy saving. The principle is to raise the pulp with lower concentration to the top of the filter screen, and let the pulp flow down from the filter screen. During this time, the water seeps out from the filter screen, and the pulp with less water content is separated on the filter screen. Since the filter screen is inclined, then The momentum created by the less consistent pulp flushes the filtered pulp off the screen and into the sump, whi...

AI Technical Summary

Problems solved by technology

However, in the production process, when the concentration of the pulp has reached the requirement and does not need to be filtered, the pulp sent will still pass through the filter screen, which not only prolongs the process time, but also causes the pulp concentration to be too high, affecting normal production

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