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Production method of chemi-mechanical pulp

A production method and technology of chemical-mechanical pulp, applied in the direction of textiles and papermaking, papermaking, water/steam pretreatment, etc., can solve the problems of reduced profits, reduced paper physical indicators, and low wood fiber usage, so as to achieve increased profits and shortened production costs. Softening time, large output effect

Pending Publication Date: 2022-05-06
潍坊德瑞生物科技有限公司
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Problems solved by technology

[0002] The amount of wood fiber used in papermaking is very low, and the amount of corrugated paper is generally 5-10%. If the amount is large, the physical index of the paper will be reduced, waste paper will be generated, and the profit will be reduced.

Method used

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  • Production method of chemi-mechanical pulp

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Embodiment 1

[0035] see Figure 1-3 A kind of chemical mechanical pulp production method of the present invention, comprises the following steps:

[0036] Step 1: Obtain the raw materials, and cut the raw materials into wood chips through cutting equipment;

[0037] Step 2: Clean the cut raw wood chips;

[0038] Step 3: Soften the cleaned raw wood chips;

[0039] Step 4: Add the softened raw wood chips to the thermal mill, separate the wood chips into fine fibers, and discharge the material through steam pressure spraying. The cleaning is to wash the chips with water to remove impurities in the wood chips. The softening includes:

[0040] The wood chips are screened and transported to the silo, and the output of the silo enters the thermal grinder material plug device, and then enters the cooking tank, the temperature is 110-140 degrees, the steam pressure is 0.65-0.8 MPa, and the steam is cooked for 3-5 minutes.

[0041] In the chemical-mechanical pulp production method described in th...

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Abstract

The invention belongs to the technical field of environmental protection, and discloses a chemi-mechanical pulp production method which comprises the following steps: step 1, obtaining raw materials, and cutting the raw materials into wood chips through cutting equipment; 2, the cut raw material wood chips are cleaned; 3, the cleaned raw material wood chips are softened; and 4, the softened raw material wood chips are added into a defibrator, the wood chips are separated into fine fibers, and discharging is conducted through steam pressure spraying. According to the invention, the problem of high electricity consumption of wood fibers of the defibrator is solved, the cost of per ton of pulp is reduced, the yield of the defibrator is improved, the problem of papermaking consumption is solved, and the use amount of wood pulp produced by the defibrator in corrugated paper can reach about 50%.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a method for producing chemical-mechanical pulp. Background technique [0002] The amount of wood fiber used in papermaking is very low, and the amount of corrugated paper is generally 5-10%. If the amount is large, the physical index of paper will be reduced, waste paper will be generated, and profits will be reduced. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the existing defects, provide a chemical-mechanical pulp production method, solve the high power consumption of wood fiber in the thermal refiner, reduce the cost per ton of pulp, increase the output of the thermal refiner, and solve the papermaking consumption Problem, the amount of wood pulp produced by thermal refiner can reach about 50% in corrugated paper, which can effectively solve the problems in the background technology. [0...

Claims

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Application Information

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IPC IPC(8): D21B1/16D21C1/02
CPCD21B1/16D21C1/02
Inventor 尹燕运
Owner 潍坊德瑞生物科技有限公司
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