Screw shaft for APMP pulping

Abstract

The invention discloses a screw shaft for APMP pulping. The screw shaft comprises a screw shaft main shaft, a screw shifting plate, a driving gear and a sealing bearing, the surface of the screw shaft main shaft is wound with the screw shifting plate inclining by 15 degrees, the screw shaft main shaft is fixedly installed at the top end of the screw shaft main shaft, and the lower end of the screw shaft main shaft is connected with the sealing bearing in a sleeved mode; the spiral shifting plate is composed of a spiral shifting plate base plate, vortex fluctuation plates and vortex rotary suction holes, the two or more vortex fluctuation plates are installed on the surface of the upper portion of the spiral shifting plate base plate with the main shaft of the spiral shaft as the center point, and the distance between the two vortex fluctuation plates is 12 cm; three penetrating through holes are formed in the surface of the spiral shifting plate base plate between the two vortex fluctuation plates and provided with vortex rotary suction holes, a plurality of turbulent flow areas are formed through the vortex fluctuation plates and the vortex rotary suction holes which are regularly arranged on the surface of the spiral shifting plate base plate, more vortexes are generated in the slurry stirring process, more vortexes can be generated when the spiral shaft rotates, and the pulping efficiency can be effectively improved.

Description

technical field [0001] The invention relates to a screw shaft, in particular to a screw shaft for APMP pulping. Background technique [0002] The screw press is a pulping equipment used for pulp dewatering. It can effectively handle the slurry with various feeding concentrations. The concentrated pulp has uniform dryness and stable pulp yield. Fiber beating is minimally affected, and the non-clogging, non-slip design reduces wear and corrosion on the helix. It is mainly used for black liquor extraction in large pulp mills, where the screw shaft is one of the main functional parts of the equipment, but the traditional screw shaft cannot generate enough eddy currents during use, making the pulping work more time-consuming, resulting in production The cost increases, reducing the economic benefits of the enterprise. Contents of the invention [0003] In view of the above-mentioned problems in the prior art, the present invention provides a screw shaft for APMP pulping, wh...

AI Technical Summary

Problems solved by technology

It is mainly used for black liquor extraction in large pulp mills, where the screw shaft is one of the main functional parts of the equipment, but the traditional screw shaft cannot generate enough eddy currents during use, making the pulping work more time-consuming, resulting in production The cost increases, reducing the economic benefits of the enterprise

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