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Cotton stalk pulping device and method of use thereof

A cotton stalk and pulping technology, applied in pulp beating/refining methods, pulping with inorganic alkali, pulp dehydration, etc., can solve the problems that residual cotton and bast fibers cannot effectively use resources, waste cotton stalks, etc. , to achieve the effect of reasonable structure, saving investment and simplifying process

Inactive Publication Date: 2015-12-09
XINJIANG BOHU REED IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a cotton stalk pulping device and its use method, which overcomes the deficiencies of the above-mentioned prior art, and can effectively solve the problem that the existing device cannot remove the residual cotton on the cotton stalk and the bast fiber cannot be effectively utilized, resulting in resource loss. waste problem

Method used

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  • Cotton stalk pulping device and method of use thereof
  • Cotton stalk pulping device and method of use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: as attached figure 1 As shown, the cotton stalk pulping device includes an atmospheric digester 1, a twin-screw press 2, a settling pan 3, a vibrating flat screen 4, a pump 5 and a refiner 6; fixedly installed on the atmospheric digester 1 There is an upper mesh belt 7 and a lower mesh belt 8. The discharge port of the atmospheric pressure cooker 1 corresponds to the feed port of the twin-screw press machine 2, and a pressing material is fixedly installed at the feed port of the twin-screw press machine 2. wheel 9, the discharge port of the twin-screw press 2 corresponds to the feed port of the grit settling disc 3, and the comb type cotton scooping machine 10 is fixedly installed on the grit settling disc 3, and the discharge port of the grit settling disc 3 and the The feed port of the vibrating screen 4 corresponds to the slurry outlet of the vibrating screen 4 and the inlet of the pump 5 are fixedly connected together through a pipeline, and the outlet...

Embodiment 2

[0022] Embodiment 2: The use method of the cotton stalk pulping device of the above-mentioned embodiment is carried out according to the following steps: the first step, the whole cotton stalk is sent to the lower mesh belt 8 by artificial feeding, and then the upper mesh belt 7 and the lower mesh belt The mesh belt 8 clamps and enters the atmospheric pressure cooker 1 at 80°C to 100°C for cooking for 20 minutes to 6 hours. The cooking medicines are sodium hydroxide and sodium sulfide, and the degree of sulfide of the cooking medicines is 0.1 to 0.3. The mass percentage of sodium hydroxide is 5% to 25%; or the cooking medicine is sodium hydroxide and sulfite, the degree of sulfitation of the cooking medicine is 0.5 to 0.9, and the mass percentage of sodium hydroxide in the cooking medicine is 5% to 25%; in the second step, the cotton stalk softened by normal pressure cooking is separated between the upper belt 7 and the lower mesh belt 8 at the discharge port of the normal pres...

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Abstract

The invention relates to the technical field of cotton stalk pulping and discloses a cotton stalk pulping device and an application method thereof. The cotton stalk pulping device comprises an ordinary pressure digester, a double-screw shoving machine, a sand-setting plate, a vibration flat screen, a pump and a pulping machine. An upper net belt and a lower net belt are fixedly installed on the ordinary pressure digester. A feed outlet of the ordinary pressure digester corresponds to a feed inlet of the double-screw shoving machine. A swaging wheel is fixedly installed in the position of the feed inlet of the double-screw shoving machine. A feed outlet of the double-screw shoving machine corresponds to a feed inlet of the sand setting plate. A comb-type gaining cotton machine is fixed installed on the sand setting machine. A feed outlet of the sand setting plate corresponds to a feed inlet of the vibration flat screen. The cotton stalk pulping device and the application method thereof are reasonable in structure and compact in structure. Separations of remnant cottons, bast fibers and wood fibers in the cotton stalk are achieved by means of cooking in the ordinary pressure digester and disintegrating in the double-screw shoving machine and removing soil and sands in the sand setting plate and screening in the vibration screen so that the cotton stalk is used fully and effectively. Working process is simplified and investment is saved.

Description

technical field [0001] The invention relates to the technical field of cotton stalk pulping, and relates to a cotton stalk pulping device and a using method thereof. Background technique [0002] Cotton stalk pulping has a long history. Because cotton stalk pulp is not easy to be bleached, it is currently only used to produce corrugated base paper and as an ingredient for linerboard. Cotton stalks contain some bast fibers, which are longer and of better quality. However, as there is no effective separation technology for the bast stalks, the bast fibers cannot be effectively used, resulting in a waste of resources. waste. Xinjiang is an important cotton-producing area in my country, but the cotton stalks in Xinjiang have not been utilized basically. The reason is that there are a lot of residual cotton left on the cotton stalks, which cannot be removed by the current cotton stalk preparation methods. The blockage of the sieve plate, the blockage of the slag outlet of the sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/12D21C3/02D21C9/18D21D5/04D21D1/20
Inventor 宋建新徐林张运展母辉民赵永健刘玉栋
Owner XINJIANG BOHU REED IND