Novel green environment-friendly chemi-mechanical pulp soaking additive and method for applying same to straw pulping

A green, environmentally friendly, chemical-mechanical pulping technology, applied in pulp beating/refining method, non-fiber pulp addition, washing/replacement of pulp treatment liquid, etc., can solve problems such as low refining efficiency

Active Publication Date: 2021-09-14
王晓光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The second purpose of the present invention is to solve the problem of deodorization and decontamination of industrial wastewater, and provide a new type of green environmental protection mechanical pulp soaking additive, which has the technical effect of realizing the recycling of industrial wastewater
[0007] The third object of the present invention is to solve the problem of low refining efficiency, and provide a new type of green and environmental-friendly mechanical pulp soaking additive, which has the technical effect of high refining efficiency

Method used

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  • Novel green environment-friendly chemi-mechanical pulp soaking additive and method for applying same to straw pulping
  • Novel green environment-friendly chemi-mechanical pulp soaking additive and method for applying same to straw pulping
  • Novel green environment-friendly chemi-mechanical pulp soaking additive and method for applying same to straw pulping

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A novel mechanical pulp soaked green additives, in parts by weight, comprising 17 parts of urea, 26.5 parts of sodium carbonate, sodium percarbonate 34 parts, 11 parts of sodium chloride, 7 parts of silicate, 1 part of sodium phosphate 0.1 parts of aluminum.

[0028] A novel mechanical pulp soaked green straw pulping additive method, comprising the steps of, preparing a flowchart see figure 1 , Where denotes additive dosing levels above formulation.

[0029] Step a: straw feed enters the pulverizer via pneumatic conveying equipment, then remove dust, screened again transferred after immersion tank;

[0030] Step 2: 24m 3 3t raw water and placed in the immersion tank, added 25kg as claimed in any of claims 1-3 according to a new green mechanical pulp soaking additives, adjusted to pH 12-13 for the preparation of pretreatment of mechanical pulp;

[0031] Step Three: Soak the pool soak 40-60 minutes into the disc refiner, refiner began beating;

[0032] Step Four: refining the...

Embodiment 2

[0036] A novel mechanical pulp soaked green additives, in parts by weight, comprising 18 parts of urea, 27.5 parts of sodium carbonate, 35 parts of sodium percarbonate, 12 parts of sodium chloride, 8 parts of silicate, 2 parts of sodium phosphate 0.5 parts of aluminum.

[0037] A novel mechanical pulp soaked green straw pulping additive method, comprising the steps of, preparing a flowchart see figure 1 , Where denotes additive dosing levels above formulation.

[0038] Step a: straw feed enters the pulverizer via pneumatic conveying equipment, then remove dust, screened again transferred after immersion tank;

[0039] Step 2: 24m 3 3t raw water and placed in the immersion tank, added 25kg as claimed in any of claims 1-3 according to a new green mechanical pulp soaking additives, adjusted to pH 12-13 for the preparation of pretreatment of mechanical pulp;

[0040] Step Three: Soak the pool soak 40-60 minutes into the disc refiner, refiner began beating;

[0041] Step Four: refining...

Embodiment 3

[0045] A novel mechanical pulp soaked green additive, characterized in that, in parts by weight, comprising 17 parts of urea, 27 parts of sodium carbonate, sodium percarbonate 34 parts, 11 parts of sodium chloride, 7 parts of silicate, sodium 1 part, 0.2 parts aluminum phosphate.

[0046] A novel mechanical pulp soaked green straw pulping additive method, comprising the steps of, preparing a flowchart see figure 1 , Where denotes additive dosing levels above formulation.

[0047] Step a: straw feed enters the pulverizer via pneumatic conveying equipment, then remove dust, screened again transferred after immersion tank;

[0048] Step 2: 24m 3 3t raw water and placed in the immersion tank, added 25kg as claimed in any of claims 1-3 according to a new green mechanical pulp soaking additives, adjusted to pH 12-13 for the preparation of pretreatment of mechanical pulp;

[0049] Step Three: Soak the pool soak 40-60 minutes into the disc refiner, refiner began beating;

[0050] Step Fou...

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Abstract

The invention discloses a novel green environment-friendly chemi-mechanical pulp soaking additive and a method for applying the same to straw pulping. The environment-friendly chemi-mechanical pulp soaking additive is prepared from, by weight, 17-18 parts of urea, 26.5-27.5 parts of sodium carbonate, 34-35 parts of sodium percarbonate, 11-12 parts of sodium chloride, 7-8 parts of silicate, 1-2 parts of sodium sulfate and 0.1-0.5 part of aluminum phosphate. The invention aims to provide an effective non-wood soaking additive and chemical composition thereof so as to achieve the effects of deodorizing and decontaminating wastewater and improve pulping efficiency. According to the invention, sodium percarbonate is used as an oxidizing agent, and the sodium percarbonate has high active oxygen content and good solubility in cold water, has the same properties as both hydrogen peroxide and sodium carbonate, and belongs to an environment-friendly reagent. The additive of the invention is simple in synthetic process, safe to use and free of irritation.

Description

technical field [0001] The invention belongs to the technical field of industrial waste water, and in particular relates to a novel green and environment-friendly mechanical pulp soaking additive. Background technique [0002] In 2015, the proportion of non-wood pulp will still account for more than 52.7% of my country's primary pulp. There is a shortage of wood in our country, and the non-wood resources are very rich. The potential of non-wood resources and agricultural wastes that can be used by the paper industry is huge. As one of the major agricultural countries in the world, my country produces a large amount of straw every year. The traditional straw treatment is mainly based on incineration. Although this method can quickly realize the consumption of straw, it will cause a lot of pollution to the agricultural ecological environment due to the large amount of smoke generated during the incineration process. In order to solve this problem, the state advocates the comp...

Claims

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Application Information

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IPC IPC(8): D21H21/14D21H11/12D21B1/02D21D1/30D21C9/02
CPCD21H21/14D21H11/12D21B1/02D21D1/30D21C9/02
Inventor 王晓光金立忠马占峰周建和彭旋华李莹莹张芷妍
Owner 王晓光
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