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Device for controlling pulping process and control method thereof

A technology of a control device and a beater, which is applied in the field of pulping and papermaking, can solve problems such as limited adaptability, achieve the effects of reducing fluctuations in beating quality, improving pulp quality, and improving the physical properties of paper

Inactive Publication Date: 2010-05-12
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity of the beating process, there are many factors that affect the beating process, which determines that any soft-sensing model has limitations, and the adaptability will not be too wide

Method used

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  • Device for controlling pulping process and control method thereof
  • Device for controlling pulping process and control method thereof

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Effect test

Embodiment

[0029] Such as figure 1 As shown, the control device for the beating process provided by the present invention includes a first pulp storage tank 1, a pulp pump inlet pipe 6, a pulp pump 7, a pulp pump outlet pipe 8, a second pulp storage tank 10, and a pulper inlet Pipe 12, beater 14, pulper outlet pipe 15, and agitator 2 with dilution water, first dilution water pipe 3, second dilution water pipe 4, pulp concentration meter 9, liquid level gauge 11, flow meter 16, first Valve 5, second valve 13;

[0030] The agitator 2 with dilution water is arranged in the slurry storage tank 1, and the first dilution water pipe 3 is the dilution water inlet pipe with the agitator 2 for dilution water;

[0031] One end of the slurry pump inlet pipe 6 is connected to the first slurry storage tank 1, and the other end is connected to the slurry pump 7. The slurry pump inlet pipe 6 is provided with a first valve 5 and connected to the second dilution water pipe 4;

[0032] The pulp concentra...

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Abstract

The invention discloses a device for controlling a pulping process and a control method thereof. The device comprises a first pulp tank, a pulp pump, a second pulp tank and a pulping machine sequentially connected with each other, wherein the first pulp tank is internally provided with a stirrer with dilution water, a pulp inlet tube of the pulp pump is provided with a dilution water tube, a pulp outlet tube of the pulp pump is provided with a paper pulp concentration meter, the second pulp tank is provided with a liquid level meter, and a pulp outlet tube of the pulping machine is provided with a flow meter. The method realizes the control of the pulping process through constant paper pulp concentration, constant paper pulp flux and constant pulping power. In the invention, the device and the method realize the pulping process under the set conditions of paper pulp concentration, flux, pressure and pulping power, thereby being beneficial to the stability of the pulping quality and the paper quality, reducing the energy consumption of the pulping process and improving the physical performance of papers.

Description

technical field [0001] The invention belongs to the field of pulping and papermaking, in particular to a control device and a control method for a beating process. Background technique [0002] The pulp and paper industry uses plant fibers as the main raw material. The plant fiber raw materials are dispersed into pulp fibers through material preparation, chemical or mechanical pulping processes, and the whiteness and whiteness stability are improved through bleaching to become pulp fibers for papermaking. However, before being sent to the paper machine to make paper, the pulp fibers must also be treated by beating equipment. [0003] Beating is an important technical link in the preparation process of papermaking pulp. Its purpose is to change the physical form of fiber raw materials (fiber swelling, delamination, fibrillation and cutting, etc.) by applying force, so that the pulp Obtain certain characteristics to ensure the quality requirements of the paper or paperboard t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D1/02
Inventor 雷利荣黄智文李友明余吕宏张志凯
Owner SOUTH CHINA UNIV OF TECH
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