CN101736627A - Energy-saving pulping compound and pulping process thereof - Google Patents

Abstract

The invention relates to an energy-saving pulping compound and a pulping process thereof, and belongs to the field of pulping and papermaking. The pulping process aims to solve the technical problems to ensure no black liquor, no heating, no waste discharge, low water consumption, water recycling, and high pulping rate in the pulping process. The pulping process is mainly characterized in that: by utilizing the characteristics and efficacies of organic and inorganic compounds, pulping raw materials are reacted and then are mechanically ground into pulp.

Description

Energy-conservation system pulping compound and pulping process thereof

Technical field:

The pulping and paper-making field, the technical field of especially energy-conservation system pulping compound and pulping process thereof.

Background technology:

Requirement according to environmental protection, market and law, need the how new paper pulp making technology of exploitation, to improve of the pollution of system paper pulp to environment, on the basis that guarantees the product superperformance, reduce the slurrying cost, the inventor once discloses a kind of biological enzymolysis way of utilizing with Xu Limin and has produced paper pulp in applying for a patent " 2004100087707 ", this slurry is functional, still has to develop future widely.The object of the present invention is to provide a kind of energy-conservation system pulping compound and pulping process thereof.Be achieved through the following technical solutions.

The composition of recipe ratio of the present invention (weight %)

1. sodium chlorite 2～6%

2. sodium sulfite 5～8%

3. SODIUM PERCARBONATE 2～5%

4. sodium chlorate 5～9%

5. bentonite 2～5%

6. soap 3～7%

7. hydrochloric acid is an amount of

8. glycerine 0.5～1%

Surplus is a water

The slurrying step is:

1. wheat (rice) grass or timber become filamentary fibers through mechanical treatment.

2. filamentary fibers is dipped in the compound solution part by weight 1: (1～1.6%).

3. will soak softening good filamentary fibers, be deposited on the cement level land, sustained response fermentation 36 hours.

4. after treating fully reaction, separate pulping,, also can many series connection use according to technological requirement with the dense fiberizer mill of superelevation.

5. will grind good slurry and compress with the single-screw press master and push, and make slurry concentration 60%, making grass (wood), to starch technology afterwards identical with original paper technology.

Described forage is wheat straw, straw or its mixture; Described timber is wood chip, wood powder or its mixture; Described forage and timber can alternative each otherly use between the two; Described forage or timber must divide silk through machinery, are processed into filamentary fibers; The dense fiberizer of described superelevation only with the moistening mill line of a spot of water, has reduced water consumption in the defibrination process; Described single-screw press master, slurry are subjected to the effect of squeezing down, and moisture content is extruded, because slurry is squeezed the effect of discongesting that also produces, the water reversible flow that is extruded uses simultaneously.

Advantage of the present invention is embodied in: 1. energy savings, exempt of the requirement of rotary spherical digester equipment to harsh technical conditions such as high temperature, high pressure; 2. without caustic soda, exempt the pollution of alkaline waste water (being black liquor) to water source and river environment; 3. need not to build the input of sewage disposal device and fund, and the high operating cost of pollution treatment instrument; 4. slurrying temperature influence is not saved a large amount of energy; 5. water is few in the pulping process, not outer draining, and the reuse of water reversible flow does not have useless foreign matter discharging, reaches pollution-free zero-emission.

The specific embodiment

Embodiment:

1. get raw materials such as sodium chlorite, sodium sulfite, sodium chlorate, put into container by the weight of recipe ratio, the clear water about the amount of doubling stirs to dissolve and gets final product, and this liquid is called " A " liquid places stand-by.

2. get raw materials such as SODIUM PERCARBONATE, soap, by the important container of putting into of recipe ratio, the clear water about the amount of doubling stirs to dissolve and gets final product, and this liquid is called " B " liquid places stand-by.

3. carried out activation processing 10 minutes with reaching 1～2 with the hydrochloric acid conditioning solution pH value again in above-described " A " liquid then, join above-described " B " liquid in " A " liquid again in, make the solution pH value reach 4～5 or near neutral.Then, add raw materials such as glycerine, bentonite again,, promptly get a kind of compound stoste through stirring.

The pulping process step:

1. wheat (rice) grass or timber become filamentary fibers through mechanical treatment.

2. filamentary fibers is dipped in the compound solution part by weight 1: (1～1.6).

3. will soak softening good filamentary fibers, be deposited on the cement level land, sustained response fermentation 36 hours.

4. after treating fully reaction, separate pulping,, also can many series connection use according to technological requirement with the dense fiberizer mill of superelevation.

5. will grind good slurry and compress with the single-screw press master and push, and make slurry concentration 60%, making grass (wood), to starch technology afterwards identical with original paper technology.

Claims (2)

1. energy-conservation system pulping compound and pulping process thereof is characterized in that the composition (weight %) of recipe ratio comprises the pulping process step.

1. sodium chlorite 2～6%

2. sodium sulfite 5～8%

3. SODIUM PERCARBONATE 2～5%

4. sodium chlorate 5～9%

5. bentonite 2～5%

6. soap 3～7%

7. hydrochloric acid is an amount of

8. glycerine 0.5～1%

Surplus is a water.

2. by described energy-conservation system pulping compound of claim 1 and pulping process thereof, it is characterized in that the composition (weight %) of described recipe ratio, also comprise following pulping process step:

1. wheat (rice) grass or timber become filamentary fibers through mechanical treatment.

2. filamentary fibers is dipped in the compound solution part by weight 1: (1～1.6).

3. will soak softening good filamentary fibers, be deposited on the cement level land, sustained response fermentation 36 hours.

4. after treating fully reaction, separate pulping,, also can many series connection use according to technological requirement with the dense fiberizer mill of superelevation.

5. will grind good slurry and compress with the single-screw press master and push, and make slurry concentration 60%, making grass (wood), to starch technology afterwards identical with original paper technology.