Method for preparing paper pulp by using biological enzyme

A bio-enzyme and pulp technology, which is applied in pulping of cellulose raw materials, papermaking, textiles and papermaking, etc., can solve the problem that straw resources have not been rationally developed and utilized

Inactive Publication Date: 2013-03-20
TIANJIN ZHIZHAN SCI & TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Affected by consumption concepts and lifestyles, a considerable po...

Method used

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Embodiment Construction

[0030] A method for preparing pulp with biological enzymes. The process is as follows:

[0031] Step 1: In the process, it is necessary to insist on removing the leaves, skin, wax skin, and sediment in the straw in advance, about 10%, so as not to enter the pulping water and reduce the water load; cut the crop straw into sections; The straw includes: reed, straw, wheat straw, corn straw, kenaf; the length is less than or equal to 1 cm;

[0032] Step 2: performing puffing treatment, adding water to the cut straw, and then entering the centrifugal puffing machine for puffing treatment; during the puffing treatment process, the total weight of water added is 30% of the straw.

[0033] Step 3: Add the bio-enzyme preparation liquid to the puffed straw and stir, then put it in a container for heat preservation and fermentation, and then put the fermentation liquid back into the fermentation liquid storage pool for later use after the fermentation is terminated; the bio-enzyme in th...

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Abstract

The invention relates to a preparation method of paper pulp, and further relates to a method for preparing the paper pulp through a biological enzyme method. The technical scheme is that the method comprises the following steps of: one, segment cutting; two, puffing; three, heat preservation fermentation; four, shoving; five, pulp washing; six, pulp selecting, wherein screened out coarse residues are put into the step three for fermentation again; seven, pulp grinding; and eight, screening, wherein the screened out pulp residues are put into the step seven for pulp grinding again. Compared with the prior art, the method has the advantages that the pulping and papermaking through the biological enzyme method has the characteristics of 'three highs and three lows' compared with the conventional process technology.

Description

Technical field: [0001] The invention relates to a method for preparing pulp, and further relates to a method for preparing pulp by biological enzyme method. Background technique: [0002] Traditional pulping methods such as alkali method, imonium method, sodium nitrate method, etc., in addition to a large amount of energy consumption in the pulping process, will also produce a large amount of black liquor during the pulping and cooking process, so expensive water treatment is required Equipment increases the cost of papermaking and prolongs the construction payback period. [0003] Sawdust, straw and other substances containing a large amount of cellulose and hemicellulose are collectively referred to as lignocellulose. The remaining part of wheat, rice, corn, potato, oil, cotton, sugarcane and other crops after harvesting seeds is called straw, and about half of the products of photosynthesis exist in straw. For example, producing 1 kilogram of rice can produce 1.5 kilog...

Claims

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Application Information

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IPC IPC(8): D21C5/00D21C3/22
Inventor 于宏远
Owner TIANJIN ZHIZHAN SCI & TECH
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