Stirring and filtering device for circulating pulp used in papermaking through glass fibers

Abstract

The invention discloses a stirring and filtering device for circulating pulp used in papermaking through glass fibers, belonging to the technical field of glass fiber filter paper production equipment. The stirring and filtering device comprises a filtering assembly and a stirring assembly, wherein the filtering assembly comprises a filtering tank and a film filter element, and the film filter element is arranged in the filtering tank and divides the filtering tank into an inner cavity and an outer cavity; and the stirring assembly comprises a stirring motor and a transmission rotary brush; the stirring motor is fixedly arranged at the top of the filtering tank, the transmission rotary brush is arranged in the inner cavity, the outer edge of the transmission rotary brush is in contact withthe inner wall of the film filter element, a transmission shaft of the transmission rotary brush is in transmission connection with the stirring motor, and the stirring motor drives the transmissionshaft to rotate so as to enable the transmission rotary brush to rotate. According to the invention, residual glass fibers in circulating liquid can be prevented from blocking the filter element, impurities such as glass fibers in the circulating liquid can be effectively filtered, and effluent can meet the requirement of cyclic utilization, so the quality of the glass fiber filter paper is effectively improved, and environmental protection, energy conservation and low cost are achieved.

Description

technical field [0001] The invention relates to the technical field of glass fiber filter paper production equipment, in particular to a stirring and filtering device for circulating slurry in glass fiber papermaking. Background technique [0002] Glass fiber filter paper is made of glass fiber as the main raw material, and is generally made by wet forming process. It has the characteristics of uniform fiber distribution, large dust holding capacity, small resistance, and high strength. It is an ideal filter material. In the process of glass fiber paper making, the slurry needs to be continuously recycled, and the residual glass fiber in the slurry has a great influence on the quality of the glass fiber filter paper, and the residual glass fiber should be removed as much as possible during the recycling process. Since the circulating slurry contains a large amount of chemical additives, if the remaining glass fibers are removed by flocculation of chemicals, the chemical pro...

AI Technical Summary

Problems solved by technology

However, the concentration of suspended solids in the glass fiber circulating fluid is high, the appearance of the glass fiber is needle-shaped, and the size is micron, and the circulation volume is also large, which makes it difficult to filter it out in general filtration, and it is easy to block, resulting in poor filtration effect. , low filtration efficiency, low service life of the filter material and need to be replaced frequently, seriously affecting the quality and production efficiency of the glass fiber filter paper produced

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