Bamboo pulp washing and scumming device

Abstract

The invention relates to the technical field of paper making, and particularly discloses a bamboo pulp washing and scumming device, comprising a filter barrel. A feed inlet and a discharge outlet areformed in the outer wall of the filter barrel, and a filter plate with a filter hole is slidably connected to the inner wall of the filter barrel; a drive unit is fixed to the outer wall of the filterbarrel, and a lead screw is fixed to an output shaft of the drive unit, and penetrates the inner wall of the filter barrel to be in threaded connection with the filter plate; a piston cylinder is fixed to the inner wall of the filter barrel, a vortex tube is fixed to the outer wall of the filter barrel, and a hot gas end of the vortex tube is connected with a hot air tube leading into the filterbarrel. According to the technical scheme, the drive unit is used for driving the lead screw to rotate so as to drive the filter plate to slide in the filter barrel to realize primary pulp washing ofbamboo pulp, while scumming is realized by the filter plate; besides, as hot air generated by the vortex tube can preheat bamboo materials, soaking time is shortened, exhausting of air in bamboo materials is facilitated, and efficiency of boiling in the follow-up process is improved.

Description

technical field [0001] The device relates to the technical field of papermaking, in particular to bamboo pulp washing and slag removal equipment. Background technique [0002] With the rapid development of my country's national economy, the demand for paper and paper products has increased sharply, and my country's papermaking wood raw materials are extremely short; less. Therefore, the experts proposed that replacing wood with bamboo, making pulp and paper, and reducing the pollution of pulp and paper to the environment are the only way to solve the shortage of wood pulp in my country and promote the development of the paper industry. of sustainable development. [0003] In the existing bamboo papermaking process, the papermaking process is generally divided into a pulping section, a papermaking section, a coating section, and a processing section. The main steps in the pulping section are raw material crushing→hot water soaking to form preliminary bamboo pulp→adding cataly...

AI Technical Summary

Problems solved by technology

The cooking equipment generally adopts vertical cooking pots, and the volume of vertical cooking pots is huge, and the volume of the smallest vertical batch digester is 45m3. The huge cooking pots lead to slow heat transfer of bamboo pulp inside and long cooking time; In actual production, in view of the tight structure of bamboo and the fact that the air retained in the duct is extremely difficult to get rid of, bamboo steaming also requires a long penetration time. The heating and penetration time is generally 1.5-2h, and the holding time also needs 2-2.5h

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