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A kind of preparation method of wheat straw and reed mixed pulp

A mixed pulp and reed technology, which is applied in the field of preparation of wheat straw and reed mixed pulp, can solve the problems affecting the normal production of the enterprise, affecting the black liquor extraction probability, and the difficulty of pulp filtration, so as to expand the market share and increase the wet weight , easy to filter effects

Inactive Publication Date: 2015-09-09
MCC MEILI CLOUD COMPUTING IND INVESTMENT CO LTD
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Problems solved by technology

[0003] 1. When there is a shortage of raw materials, it will seriously affect the normal production of the enterprise;
[0004] 2. The wet weight of the slurry obtained by the single wheatgrass alkaline cooking method is low, only about 2.0;
[0005] 3. The single wheatgrass alkaline cooking method makes it difficult to filter the slurry, which affects the extraction probability of black liquor

Method used

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  • A kind of preparation method of wheat straw and reed mixed pulp

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Embodiment Construction

[0019] The preparation of wheat straw and reed mixed pulp of the present invention mainly adopts the caustic soda pulping method to obtain by adopting the ratio of 7:3~4:6, and the specific method is:

[0020] Wheat straw and reed are prepared by dry-wet combination method: that is, wheat straw and reed are respectively cut to the range required by the method through a knife-roller mower, and after dedusting and impurity removal by a claw dust collector, the ratio is 7:3 to 4:6. It is mixed and sent to the hydraulic shredder for crushing and washing of the raw materials. The washed grass and reed mixed pieces are pumped into the oblique screw dehydrator for dehydration treatment. The treated grass pieces enter the pin drum meter. The excess grass and reed mixed pieces are sent back to the hydraulic grass cutter by the return screw. After the above-mentioned process, the length of the grass slices and reed slices obtained from wheat straw and reed is 40-60mm, the water content ...

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Abstract

The invention relates to a preparation method for a mixed pulp of wheat straw and reed. In the preparation method, a soda-process pulping method is used to prepare pulp in the ratio of the wheat straw to the reed of 7:3 to 7:6. The preparation method for the mixed pulp of wheat straw and reed solves a continuous production problem that the pulp supply of a continuous cooking device is insufficient, expands the market share of the material market resource, and compensates the serious defects of the wheat straw resources; simultaneously, the wet weight of the mixed pulp is increased to be 2.6-3.0, thus the mixed pulp is easy to filter, and has advantages in an extracting process of black liquor.

Description

technical field [0001] The invention belongs to the technical field of application of papermaking and pulping methods, in particular to a preparation method of wheat straw and reed mixed pulp. Background technique [0002] For a long time, the pulping of wheat straw or reed usually adopts a single alkaline cooking method of wheat straw pulp or a single alkaline cooking method of reed pulp. This method has the following technical defects in continuous cooking equipment: [0003] 1. When there is a shortage of raw materials, it will seriously affect the normal production of the enterprise; [0004] 2. The wet weight of the slurry obtained by the single wheatgrass alkaline cooking method is low, only about 2.0; [0005] 3. The single wheatgrass alkaline cooking method makes it difficult to filter the slurry, which affects the extraction probability of black liquor. Contents of the invention [0006] The purpose of the present invention is to overcome the defects of the abov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/12D21C3/02D21C3/22
Inventor 郭旭斌高永全陈艳娟卢元庆陈佳慧
Owner MCC MEILI CLOUD COMPUTING IND INVESTMENT CO LTD
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