CN103103843B - Plant fiber's potassio solvent (TCF) chemically cleaning pulp-making method - Google Patents

Abstract

nullThe present invention is the pioneering invention in pulping and paper-making field，It is mainly technically characterized ny 200 degree of 400 degree of high temperature furnaces of employing by potassium hydroxide 20%、Magnesium hydroxide 20%、The calcium hydroxide 60% 10 times of mixing that add water carry out melt and dissolved becoming liquid，Adding carboxymethyl cellulose makes liquid not solidify with standby as dispersant，Join in comprehensive generator of photoelectric oxy of vegetable fibre during slurrying，Add with potassio solvent 100: 6 ratio in raw material (over dry)，Stir，Add aqueous hydrogen peroxide solution 6% and carry out chemical reaction，Reaction temperature is maintained at 70 90 degree，It is delivered to slurry in efficient defiberizing machine after 30 minutes soften、Discongest、Multiple drift、Pulping，With Double screw pulp extruder, waste liquid is extruded，About 3 tons of waste liquids of bleached pulp per ton，It is introduced directly into water reservoir supply peasant and sprays crop，There is chemical fertilizer、Pesticide double effects；Accepted stock is delivered to papermaking operation pastime, refine, screen, remove the gred flow process, manufacture paper with pulp various completely without chlorine cultural paper and paper for daily use.

Description

Plant fiber's potassio solvent (TCF) chemically cleaning pulp-making method

Present disclosure is the pioneering invention in paper-making pulping field.

Background technology utilizes grass raw pulp papermaking to become the arch-criminal polluting environment, especially maximum to water source, biology, food and human health risk with the COD in black liquor and the chlorine element in white liquor, control, closedown measure is the most all taked to solve, China is turned off up to ten thousand paper-making pollution enterprises, agricultural stalk is caused to utilize, raw material of industry shortage, fixed assets are left unused, and large quantities of workers are laid off.For solving to pollute and agriculture and forestry waste's reclamation, both at home and abroad some cleaning pulping production technologies occur successively: such as: enclosed type cycle oxygenolysis pulping method (invention patent mandate number: 02131353.9), self coupled oxidation cleaning pulp making technique (patent of invention number: 200610057235.X), plant fibre components comprehensive utilization of separation pulp-making method (patent of invention number: 200810118240.6), " potassium radical ecological blanket " (200510092998.3) etc., tentatively solve stalk comprehensive utilization and paper-making pulping pollutes a difficult problem, but still it is high to be difficult to solve slurrying cost, waste liquid needs reprocessing ability reuse, pulping slightly obstructs many, the defect that energy resource consumption is big.The present invention uses potassio solvent completely without chlorine chemistry pulp-making method, various Plant fiber quick pulping in a hour can be made, not only yield is high, whiteness is high, fiber quality is high, slurrying whole process is economized on coal without black liquor, water-saving and electricity-saving, and pulping waste liquor is efficient potassio liquid fertilizer without processing, alternative chemical fertilizer and pesticide are directly used in plantation various organic grains, vegetable, melon and fruit, detect through the Chinese Academy of Agricultural Sciences, this pulping waste liquor rich in the calcium required for potassium and crop, magnesium, organic matter, without any poisonous and harmful substance and chromium, hydrargyrum class heavy-metal residual.

nullSummary of the invention uses 200 degree of-400 degree high temperature furnace by potassium hydroxide、Magnesium hydroxide and calcium hydroxide mix with water and carry out melt and dissolved becoming liquid，Adding carboxymethyl cellulose makes liquid not solidify as dispersant，Join during slurrying in comprehensive generator of photoelectric oxy of vegetable fibre (patent No.: 200620138146.3)，Add with potassio solution 100: 6 ratio in raw material (over dry)，Add aqueous hydrogen peroxide solution 6% (to over dry raw material) and carry out chemical reaction，Reaction temperature is maintained at 70 degree of-90 degree，It is delivered to slurry after 30 minutes in efficient defiberizing machine (patent No.: 200810126790.2) soften、Discongest、Multiple drift，With Double screw pulp extruder, waste liquid is extruded，About 3 tons of waste liquids of bleached pulp per ton，It is introduced directly into water reservoir supply peasant and sprays crop.Accepted stock is entered that papermaking is diverted oneself, refines, screened, remove the gred operation.

Detailed description of the invention 1, use 200 degree-400 and spend the high temperature furnace 10 times of mixing that potassium hydroxide 20%, magnesium hydroxide 20%, calcium hydroxide 60% added water and carry out melt and dissolved becoming liquid, adding carboxymethyl cellulose makes liquid not solidify as dispersant, contains in container in case application during slurrying.

2, devillicate machine is used to discongest into fibre bundle after Plant fiber such as rice wheat straw, cotton stalk, phragmites communis, mulberry shoot, Cortex Salicis Cheilophilae, brush wood cutting, dedusting, it is delivered directly to comprehensive generator of photoelectric oxy of vegetable fibre, solvent is added with potassio solvent 100: 6 ratio in raw material, uniform with raw material stirring, add 6% aqueous hydrogen peroxide solution and carry out chemical reaction, reaction temperature 70 degree-90 degree, after 30 minutes, slurry is delivered to high-efficiency fiber discongest screening machine carry out softening, discongest, multiple drift, pulping

3, using Double screw pulp extruder to be extruded by waste liquid, slurry per ton is about extruded 3 tons of waste liquids, is introduced directly into water reservoir, transfer to peasant to water crop, can not only be used for fertilizer, has disinfection and deinsectization effect simultaneously, it is also possible to improvement soil.

4, slurry is delivered to paper technology pastime, refine, screen, remove the gred operation, can manufacture paper with pulp various completely without chlorine cultural paper and paper for daily use.

Claims (1)

1. Plant fiber's potassio solution chemical clean pulping method, it is mainly technically characterized ny employing 200 Potassium hydroxide 20%, magnesium hydroxide 20%, calcium hydroxide 60% are added water 10 by degree-400 degree high temperature furnaces Times mixing carries out melt and dissolved becoming liquid, adds carboxymethyl cellulose and makes liquid not solidify as dispersant With standby, join during slurrying in comprehensive generator of photoelectric oxy of vegetable fibre, by over dry raw material and potassio Solvent 100: 6 ratio is added, and stirs, and adds aqueous hydrogen peroxide solution 6% and carries out chemistry instead Should, reaction temperature is maintained at 70----90 degree, after 30 minutes, slurry is delivered to efficient defiberizing machine In carry out softening, discongest, multiple drift, pulping, with Double screw pulp extruder, waste liquid is extruded, bleaching per ton Starch 3 tons of waste liquids, be introduced directly into water reservoir supply peasant and spray crop, there is chemical fertilizer, the dual merit of pesticide Effect；Accepted stock is delivered to papermaking operation pastime, refine, screen, remove the gred flow process, manufacture paper with pulp each Plant completely without chlorine cultural paper and paper for daily use.