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Method for producing paper pulp by oxidatively bursting wall of straw

A technology of straw and oxygen explosion, applied to the separation of raw materials, etc., can solve the problems of large water consumption, expansion of production scale, difficult sewage treatment, etc., and achieve the effect of reduced stacking volume, low production cost, and thorough decomposition

Inactive Publication Date: 2012-05-30
BEIJING ZHONGNUO DERUI IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing pulp production process consumes a lot of water, and the resulting sewage is also difficult to treat, and the discharge will seriously pollute the environment
Because the existing pulp production needs to consume a lot of precious water resources, it not only leads to higher production costs, but also is not conducive to the expansion of production scale
In addition, the product quality of the existing pulp production also needs to be further improved

Method used

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  • Method for producing paper pulp by oxidatively bursting wall of straw
  • Method for producing paper pulp by oxidatively bursting wall of straw

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The method for making paper pulp by oxygen blasting wall straw of the present invention comprises the following steps:

[0021] A, prepare the stalk of raw material biomass, and crush it to below 50mm;

[0022] B. Add 5kg or 8kg or 10kg or 15kg or 18kg or 23kg or 26kg or 29kg or 32kg or 38kg or 40kg or 45kg or 48kg or 53kg or 56kg or 59kg or 62kg or 65kg to the crushed straw according to the weight of 200kg of straw Or 68kg or 73kg or 76kg or 79kg or 80kg parts by weight of liquid ammonia, 1kg or 2kg or 5kg or 8kg or 10kg or 15kg or 18kg or 20kg parts by weight of urea, 1kg or 2kg or 4kg or 7kg or 10kg or 14kg or 17kg or 20kg of 35% concentration of hydrogen peroxide and 5kg or 7kg or 9kg or 13kg or 16kg or 23kg or 27kg or 29kg or 33kg or 38kg or 40kg or 45kg or 48kg or 53kg or 56kg or 59kg or 62kg or 65kg or 68kg or 73kg or 76kg or 79kg or 80kg of water by weight, add liquid ammonia, urea, 35% concentration of hydrogen peroxide and water, and then stir the material fo...

Embodiment 2

[0033] The method for making paper pulp by oxygen blasting wall straw of the present invention comprises the following steps:

[0034] A. Prepare the stalk of raw material biomass and crush it to 1-50mm;

[0035] B, the stalk after pulverizing is according to the stalk of 200kg weight part, correspondingly adds the liquefied ammonia of 10kg weight part, the urea of ​​10kg weight part, the hydrogen peroxide of 35% concentration of 10kg weight part, the sodium hydroxide of 10kg weight part, 10kg weight part Potassium hydroxide, the calcium hydroxide of 10kg parts by weight and the water of 50kg parts by weight, then the material is stirred for 3 minutes, allowing the material to be subjected to oxidation-soaking treatment;

[0036] C. The material after oxidation-soaking treatment is transported to the oxygen explosion tank through the feed port of the oxygen explosion tank for compaction and filling. After filling, the feed port of the oxygen explosion tank is closed, and then ...

Embodiment 3

[0042] The method for making paper pulp by oxygen blasting wall straw of the present invention comprises the following steps:

[0043] A. Prepare the stalk of raw material biomass and crush it to 1-50mm;

[0044] B, the stalk after pulverizing is according to the stalk of 200kg weight part, correspondingly adds the liquefied ammonia of 5kg weight part, the urea of ​​15kg weight part, the hydrogen peroxide of 35% concentration of 12kg weight part, the sodium hydroxide of 5kg weight part, 5kg weight part Potassium hydroxide, the calcium hydroxide of 5kg parts by weight and the water of 60kg parts by weight, then the material is stirred for 2 minutes, allowing the material to be subjected to oxidation-soaking treatment;

[0045] C. The material after oxidation-soaking treatment is transported to the oxygen explosion tank through the feed port of the oxygen explosion tank for compaction and filling. After filling, the feed port of the oxygen explosion tank is closed, and then satu...

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Abstract

The invention relates to a method for producing paper pulp by oxidatively bursting wall of straw, comprising the following steps of: adding liquid ammonia, urea, hydrogen peroxide with the concentration of 35% and water into smashed straw, then stirring the materials to carry out oxidation-soaking treatment on the materials, conveying the materials subjected to the oxidation-soaking treatment into an oxidative bursting tank from a feeding hole of the oxidative bursting tank, sealing the feeding hole of the oxidative bursting tank, inputting saturated vapour into the oxidative bursting tank, conveying forced air into the oxidative bursting tank, completely opening a discharge hole of the oxidative bursting tank in three seconds, and instantaneously reducing the pressure in the oxidative bursting tank to normal pressure. The equipment comprises a straw smashing machine, a straw conveying device, a storage silo, a premixing machine, a material elevator, a rotary type feeding machine, theoxidative bursting tank, a rubbing silk separating machine, a first high-concentration pulping machine, a second high-concentration pulping machine and a sedimentation type reactor. The invention aims at providing a method and equipment with good quality, less water consumption, less waste water to be treated and no environmental pollution, for producing paper pulp by oxidatively bursting the wall of the straw.

Description

technical field [0001] The invention relates to a method for making paper pulp by oxygen blasting wall straw. Background technique [0002] The existing pulp production process consumes a lot of water, and the resulting sewage is also difficult to treat, and the discharge will seriously pollute the environment. Because the existing pulp production needs to consume a large amount of precious water resources, it not only leads to higher production costs, but also is not conducive to the expansion of production scale. In addition, the product quality of the existing pulp production also needs to be further improved. Contents of the invention [0003] The purpose of the present invention is to provide a method for producing paper pulp by oxygen blasting wall straws with good quality, less water consumption, less sewage to be treated, low production cost and high production efficiency. [0004] The method for making paper pulp by oxygen blasting wall straw of the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/36
Inventor 许少莹李泰华苏新荣王振水李刚
Owner BEIJING ZHONGNUO DERUI IND TECH
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