Pulp screening equipment based on airflow guiding and variable-diameter pressurizing rotary screen

Abstract

The invention provides pulp screening equipment based on airflow guiding and a variable-diameter pressurizing rotary screen. The equipment mainly comprises an accepted pulp generating device, a powerdriving device, an airflow guiding screening device composed of an air compressor and an air delivery pipe, a rotary pressure screening device composed of a screen rotor, an upper cover plate, a lowercover plate and rotor wings, a variable-diameter pressurizing device composed of arc plates, connecting plates, outer cylinders, inner cylinders and springs, and a turbulent flow homogenizing devicecomposed of spoilers, triangular sawteeth and turbulent flow grooves. The equipment is characterized in that a high-pressure airflow path guides pulp screening, and variable-diameter pressurizing is carried out in a screen drum. According to the invention, generation of accepted pulp is realized through the accepted pulp generating device; power supply of the equipment is achieved through the power driving device; pulp screening is guided by the high-pressure airflow path through the airflow guiding screening device; rotary pressure screening of pulp is achieved through the rotary pressure screening device; variable-diameter pressurizing of the pulp by the screen drum is achieved through the variable-diameter pressurizing device; and turbulent flow homogeneous distribution of the acceptedpulp is achieved through the turbulent flow homogenizing device.

Description

technical field [0001] The present invention relates to a pulp screening equipment based on air flow drainage and variable-diameter pressurized rotary screen, in particular to a fine pulp generating device to realize good pulp generation, a power drive device to realize the power supply of the equipment, and an air flow guiding screen device Realize the path guidance of high-pressure air flow to screen the slurry, realize the rotary pressure screening of the slurry through the rotary screen press device, realize the variable diameter pressurization of the slurry by the screen drum through the variable diameter booster device, and realize the good pulp through the turbulent flow homogenization device The turbulent flow is evenly distributed, which belongs to the technical research and development field of pulp screening equipment. Background technique [0002] The pressure screen is one of the most commonly used papermaking equipment in the paper industry. The pressure screen...

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Problems solved by technology

[0004] Aiming at the common problems of low pulp screening efficiency and low quality pulp in the use of existing pressure screens, the present invention provides a pulp screening equipment based on airflow drainage and variable-diameter pressurized rotary screen that can effectively solve the above problems

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