Cellulose pulp pretreatment equipment

A cellulose pulp and pretreatment technology, applied in fiber raw material treatment, chemical/physical process, pulp raw material addition process, etc., can solve the problems of impregnation, swelling, poor mixing effect, etc., achieve uniform material, save engineering investment, The effect of shortening the process flow

Active Publication Date: 2015-03-11
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using this stirring tank for pretreatment of cellulose pulp, because the pulp floats on the upper layer of the solvent, the solvent cannot completely impregnate and swell the pulp, so the mixing effect is poor

Method used

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  • Cellulose pulp pretreatment equipment
  • Cellulose pulp pretreatment equipment

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Experimental program
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Embodiment Construction

[0042] like figure 1 As shown, the cellulose pulp pretreatment equipment of the present invention includes a vertical stirring kettle, a kettle cover 2 is arranged above the kettle body 4, a motor 1 is arranged on the kettle cover 2, the stirring shaft 3 is connected with the motor 1, and the stirring shaft 3 extends Into the kettle body 4, a stirring paddle is arranged on the stirring shaft 3, and a porous pressing plate 6 is arranged above the stirring paddle in the kettle body 4. The porous pressing plate 6 is provided with many holes for the passage of the solvent. The porous pressing plate 6 and the kettle body 4 The cross-sections are matched to each other, the porous pressing plate 6 is provided with a central through hole 61 , the stirring shaft 3 is arranged through the central through hole 61 , and the porous pressing plate 6 can move up and down in the kettle body 4 .

[0043] The upper side of the perforated pressing plate 6 is provided with a tie rod 7 parallel to...

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PUM

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Abstract

The invention provides cellulose pulp pretreatment equipment, which comprises a vertical stirring kettle. A kettle cover is arranged above the kettle body, a motor is disposed on the kettle cover and is connected to a stirring shaft, and the stirring shaft extends into the kettle body and is provided with stirring paddles. A porous pressing plate is disposed above the stirring paddles in the kettle body and is equipped with a center through hole, and the stirring shaft runs through the center through hole. The porous pressing plate matches with the kettle body cross section. The porous pressing plate is equipped with a plurality of holes, and can move up and down in the kettle body. According to the invention, the porous pressing plate can complete the technological requirements of pressing the pulp into a solvent. Pulp impregnation solvent swelling, mixing and pulping are finished in one kettle, equipment investment and engineering investment are saved, the manufacturing, energy consumption and management costs are saved, and the cellulose pulp pretreatment process is shortened.

Description

technical field [0001] The invention belongs to material mixing equipment, in particular to a cellulose pulp pretreatment equipment, which is used for cellulose pulp impregnation, swelling, pulping and mixing, and is especially suitable for but not limited to new solvent method cellulose fibers (Lyocell ) in the pretreatment of cellulose pulp. Background technique [0002] The production of viscose fiber has gone through a history of more than 100 years, and its existence meets the needs of human society to develop differentiated fibers to a certain extent, but due to the use of a large number of environmentally harmful chemicals in its production process (such as CS 2 , NaOH, ZnSO 4 , H 2 SO 4 etc.), the sewage and waste discharged in the production process also contains a large amount of toxic chemicals (such as H 2 S, CS 2 etc.), which will cause huge pollution to the environment, and the harmless treatment of these environmentally harmful chemicals is costly and ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/04B01F7/28B01F15/02B01F27/94
Inventor 金云峰孙玉山徐纪刚赵庆章徐鸣风骆强
Owner CHINESE TEXTILE ACAD
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