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Method for treating wood chips for digestion

A processing method and technology of wood chips, which are applied in fiber raw material processing, textiles and papermaking, etc., can solve the problems of complex sources of wood raw materials, difficulty in preparing high-quality pulp, and difficulty in ensuring the quality of wood chips, so as to facilitate transportation and reduce Coarse slag rate, the effect of quality assurance

Inactive Publication Date: 2011-02-09
湖南骏泰新材料科技有限责任公司
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Problems solved by technology

[0002] Due to the complex sources of wood raw materials, the content of fibrous and non-fibrous impurities in wood chips for cooking and some wood chips rot and deteriorate, it is difficult to ensure the quality of wood chips only by relying on the screening function of the traditional material preparation process, so it is also difficult to prepare high quality slurry

Method used

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  • Method for treating wood chips for digestion
  • Method for treating wood chips for digestion

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in detail:

[0011] From figure 1 According to the technological process, it can be seen that the purchased or cut wood chips first enter the wood chip washing machine 1 for washing, and the washed wood chips enter the oblique spiral dehydrator 2 to remove a large amount of free water, and directly fall into the wood chip thickness sorting machine 3 for thickness classification. The qualified wood chips selected by sorting flow into the vibrating dehydration screen 4 for further dehydration, and finally sent to the cooking pot through the belt conveyor 9; the wood chips that are too thick and too thick are sorted out by the thickness screen 3, and sent to the thick slices for thinning The machine 5 carries out the thinning treatment, and after the treatment is qualified, it is sent to the cooking pot; at the same time, the washing water discharged from the wood chip...

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Abstract

The invention discloses a method for treating wood chips for digestion. The method is characterized by comprising the following processes of: (1) conveying the wood chips to a wood chip washing machine for washing; (2) dehydrating the washed wood chips, then conveying the dehydrated wood chips to a wood chip thickness screen for screening, and directly conveying the screening qualified wood chips to a digester; and (3) pressing the screened thick chips into qualified wood chips in a thick chip thinning machine, and then conveying the qualified wood chips to the digester. The method thoroughly changes the traditional wood preparation process flow, introduces washing, thickness sorting and thinning treatment mechanisms, radically ensures the quality of the digested wood chips, meanwhile, enables the whole process to be compact and effective, is favorable for conveying materials, greatly reduces the investment cost, saves energy, reduces consumption, and remarkably improves the production efficiency.

Description

technical field [0001] The invention relates to a processing method for cooking wood chips in pulping and papermaking, in particular to a processing method for cooking wood chips in kraft pulping technology. Background technique [0002] Due to the complex sources of wood raw materials, the content of fibrous and non-fibrous impurities in wood chips for cooking and some wood chips rot and deteriorate, it is difficult to ensure the quality of wood chips only by relying on the screening function of the traditional material preparation process, so it is also difficult to prepare High quality paste. Contents of the invention [0003] The purpose of the present invention is to provide a wood chip processing method with excellent application performance and energy-saving effect, which can significantly improve the quality of cooked wood chips, thereby significantly improving the quality and yield of cooking pulp and reducing the coarse slag rate. [0004] The technical scheme a...

Claims

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Application Information

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IPC IPC(8): D21C5/00
Inventor 周鲲鹏刘洪波陈金山周海东徐远梅王万宏
Owner 湖南骏泰新材料科技有限责任公司
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