Caragana intermedia natural-color semi-chemical mechanical pulping process

A chemical machinery and caragana technology, which is applied in the field of papermaking technology to achieve the effects of simple and easy operation, environmental friendliness and low cost.

Inactive Publication Date: 2015-06-17
XINJIANG GUOLIYUAN INVESTMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no papermaking process utilizing caragana

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A caragana natural color semi-chemical mechanical pulp process, the concrete process steps are as follows:

[0018] 1) Cut the Caragana bar into 35-50mm material sections, and transport them to the horn dust collector to remove heavy impurities such as dust.

[0019] 2) Transfer the qualified caragana after dedusting and impurity removal to the digester for softening, add 2% NaOH, 1% biodegradant (Taian Qineng Chemical NQ60) for 3.5 hours under steam pressure of 0.3MP.

[0020] 3) The steamed caragana material is transported to the squeezer, and then subjected to high-pressure impregnation and separation by a twin-screw thread rolling machine, and then refined in a high-consistency refiner to obtain coarse pulp.

[0021] 4) After the ground coarse pulp is passed through the hydropulper to eliminate potential at high speed, the slag is removed, finely ground, screened and concentrated, and then transported to the pulp mixing tank and sent to the papermaking workshop.

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PUM

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Abstract

The invention discloses a Caragana intermedia natural-color semi-chemical mechanical pulping process which comprises the following steps: 1) cutting Caragana intermedia into material fragments, and conveying to a claw filter to remove heavy impurities such as soil dust; 2) conveying the qualified Caragana intermedia to a boiler for softening after dust and impurities are removed; 3) conveying the boiled Caragana intermedia to a press master, performing high-pressure steeping devillication by using a double-screw thread rolling machine, and pulping in a high-concentration pulping machine so as to obtain crude pulp; 4) performing high-speed latency on the grinded crude pulp by using a hydrapulper, removing residues, finishing, screening, concentrating, conveying to a pulp chest, and conveying to a papermaking workshop. Aiming at the characteristics of Caragana intermedia, the Caragana intermedia natural-color semi-chemical mechanical pulping process disclosed by the invention is simple in process, easy to operate, relatively friendly to the environment when being compared with the prior art, the obtained slurry is high in performance and low in cost, and the process does not need large and complex equipment.

Description

technical field [0001] The invention relates to a caragana natural color semi-chemical mechanical pulp process, which belongs to the field of papermaking technology. Background technique [0002] Caragana intermedia intermedia belongs to the leguminosae family Leguminosae, a shrub, also known as wool strips and white caragana. It is a large deciduous shrub of the leguminous family Caragana. The root system is extremely developed, the main root penetrates deep into the soil, and the plant height is 40-70 cm, up to about 2 meters. It is suitable for growing on sunny and semi-sunny slopes at an altitude of 900-1300 meters. Drought-resistant, cold-resistant, and high-temperature-resistant, it is an xerophytic shrub in arid grasslands and desert grasslands. At present, caragana is one of the important tree species for soil and water conservation and sand-fixing afforestation in Northwest China, North China, and Northeast China. It is an excellent plant for sand-fixing and green...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C3/02D21C5/00D21B1/16
CPCD21C3/02D21B1/16D21C5/00
Inventor 腾铁生张跃平
Owner XINJIANG GUOLIYUAN INVESTMENT
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