Turbulence generator for medium-consistency paper pulp pump

Abstract

The invention relates to a turbulence generator, in particular to a turbulence generator for a medium-consistency paper pulp pump. The turbulence generator is mounted at the front end of a pump impeller; the turbulence generator and the pump impeller are arranged on the same shaft; and the turbulence generator consists of a hub and a spiral blade fixed on the hub. The turbulence generator is characterized in that the spiral blade consists of an inlet surface, a work surface, a back surface, an outlet surface and an outer edge surface; the work surface is a three-dimensional space curved surface and consists of an inlet side, a blade edge section line and an outlet side; the back surface is formed by thickening the work surface at equal thickness; the inlet side is perpendicular to the axial direction; the outlet side is also perpendicular to the axial direction; and the inlet side and the outlet side rotate for an angle in the circumferential direction to form a blade wrap angle. According to the turbulence generator disclosed by the invention, the fluidizing and gas separating functions of medium-consistency paper pulp suspension can be realized and the conveying difficult problem caused by lack of flowability and over-high gas holdup of medium-consistency paper pulp is solved.

Description

technical field [0001] The invention relates to a turbulence generator, in particular to a turbulence generator suitable for medium-consistency pulp pumps. Background technique [0002] Medium-consistency conveying technology refers to the technology in which pulp is directly conveyed at medium-concentration (pulp mass concentration 7%-15%) during the pulping and papermaking process, especially in the conveying process; compared with commonly used low-concentration pulp conveying, it greatly reduces The water consumption in the pulping process and the discharge of papermaking wastewater are greatly reduced, and the pollution to the environment is greatly reduced. [0003] When the pulp mass concentration C≥7%, the pulp loses its own fluidity, and at the same time, the pulp suspension contains a lot of gas, and the low-consistency pulp pump cannot be transported; compared with the ordinary low-consistency pulp pump, the centrifugal medium-consistency pulp pump increases Turb...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art, and to provide a design method for the blades of the turbulence generator of the medium-consistency pulp pump that can realize the above-mentioned medium-consistency conveying technology; The role of pulp suspension fluidization and gas separation solves the transportation problem caused by the lack of fluidity and excessive gas holdup of medium-consistency pulp

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