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Combined process taking gramineous plants as raw materials

A technology of plant raw materials and grasses, applied in the field of combined technology, can solve the problems of not adapting to changes in the paper consumption market

Inactive Publication Date: 2019-03-05
黑龙江如柏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the technological progress and product upgrading of related industries, the existing paper product structure is no longer suitable for the changes in the paper consumption market

Method used

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  • Combined process taking gramineous plants as raw materials
  • Combined process taking gramineous plants as raw materials
  • Combined process taking gramineous plants as raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0202] 1. Prepare high-grade paper from grasses——rice straw

[0203] Select dry straw, remove impurities and dust, and crush it. There is a trumpet-shaped dust removal device at the entrance of the pulverizer, and there are two trumpet-shaped dust removal devices next to the screw rod at the feeding port of the silo. The crushing is to crush the raw materials. into 2-3 cm sections, sieved and separated to obtain pulping raw materials, and stored in the silo;

[0204] Add 1 ton of the above-mentioned pulping raw material - straw into the No. 1 reaction tank by means of screw feeding, and use the same feeding method to add 3 tons of clean water and / or recycled water, 62kg of hydrogen peroxide and 62kg of sodium hydroxide At the same time, add it to the No. 1 reaction tank, stir evenly, and keep the pH of the mixed material in the No. 1 reaction tank greater than or equal to 12; due to the self-heating phenomenon of the softening reaction, when the reaction starts, the temperatur...

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Abstract

The invention discloses a combined process taking gramineous plants as raw materials. The combined process comprises a whole-process reaction process comprising a preparation process of pulp for high-grade paper, a preparation process of pulp for packaging paper, and a preparation process of organic fertilizers. The preparation process of the pulp for the high-grade paper mainly comprises processsteps by using three tanks, four press masters and a high-consistency refiner, so that the pulp with high yield is prepared; then pressed water obtained through primary pressing and / or primary and secondary pressing after primary alkali-adding softening in the process is used as a raw material for a preparation process of the pulp of the packaging paper; a part of cellulose and reagents which arenot timely reacted are contained in the pressed water, so that softening treatment and grinding treatment are carried out once again, and preparation of the pulp for the packaging paper can be realized; and the pressed water generated in the preparation process of the pulp for the packaging paper is recycled to be used as a preparation raw material of the organic fertilizers. No black liquor is discharged in the combined process, the recycled water is recycled, energy is saved, and the combined process becomes a green pulping process.

Description

technical field [0001] The invention belongs to the technical field of papermaking and waste liquid recovery thereof, and in particular relates to a combined process using grass plants as raw materials. The process jointly prepares high-grade paper pulp, packaging paper pulp and organic fertilizer. Background technique [0002] Paper is an important item closely related to human life. It has developed into a raw material for packaging, printing, cigarettes, stationery, machinery, building materials, military industry and other industries. The paper industry has a wide range of applications in all walks of life. The development of the paper industry directly It reflects the level of a country's national economy and civilization construction. my country is a big country for papermaking and papermaking, and papermaking has become an important basic industry that drives the development of the national economy. According to China's 2015 Paper Industry Annual Report, in 2015 ther...

Claims

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Application Information

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IPC IPC(8): D21H11/12D21B1/16D21C1/06C05F15/00C05F17/00
CPCC05F7/005C05F17/00D21B1/16D21C1/06D21H11/12C05F11/02C05F11/08Y02W30/40
Inventor 刘长如钱月起
Owner 黑龙江如柏科技有限公司
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