CN1298984A

CN1298984A - Grass pulp without pollution and method for reclaiming its by-product

Info

Publication number: CN1298984A
Application number: CN99123096A
Authority: CN
Inventors: 范维金; 徐建国; 郭玉英; 邢乾利
Original assignee: 范维金; 徐建国; 邢乾利; 郭玉英
Current assignee: Van van King
Priority date: 1999-12-07
Filing date: 1999-12-07
Publication date: 2001-06-13
Anticipated expiration: 2019-12-07
Also published as: CN1116473C

Abstract

The present invention is non pollution grass pulping and its by-products utilization. By slicing and selecting the grass, the fine grass slices (for paper) and fine grass redidue (for feed) is obtained. To creepage, soften and wash the fine grass slice to reach the aridity of 25-30% and after twice disc grinding, high quality grass pulp is produced. Through smashing the grass residues into powder and adding the auxiliary material and additives, mixing, shaping, cooling and drying, high quality fibrous feed stuff is produced.

Description

The method of a kind of careless class pollution-free pulping and pair product resourceization thereof

The present invention relates to careless class development and use, particularly adopt free of contamination technology manufacturing paper pulp and energy-conservation technology will pay the fiber feedstuff that product is made high-quality.

Annual agricultural goes up the various careless class that generates and reaches several hundred million tons, basically all unprocessed, the cultivated also field of burying of part a spot ofly is used for papermaking etc., and a large amount of then goes out of use, even burn, for a long time, though make great efforts tackling key problem, also do not find science, meet benign ecological cycles, way capable of being industrialized.

The careless class pulping process of tradition, main have soda processes, lime method, sulfurous acid nanofarad, an ammonium sulfite etc., more than several system oar methods all be through adding chemicals in boiling vessel through boiling, chemical treatment, its cooking waste liquor need drop into the great number fund, carry out liquid waste processing, the waste liquid that is discharged is also difficult up to standard, and as the not treated waters that is discharged into, the environmental pollution meeting that then causes is even more serious.

Pair product (waste material--the careless slag after the careless class process section dedusting) with careless class pollution-free pulping, by eating the nutritive index that careless livestock is fed and expects, carry out recycling treatment, method disassociation grass fiber with machinery, allocate additive again into, be processed into the feed product of series, this series products has higher use value and application prospects.

The systems approach of grass class pollution-free pulping and pair product resourceization thereof still belongs to initiative so far.

The objective of the invention is to:

A kind of method that realizes the pollution-free manufacturing pulp production technology of careless class and pay product resourceization is provided.

The method of pollution-free careless class slurrying is:

Grass as raw material through collection, storage, cut-out, dedusting, screening be divided into refining blade and

Refining careless slag two parts.

A. refining blade: be mainly careless bar position, length is 20～40 millimeters, accounts for herb

85～90％。

B. refining careless slag: be mainly blade of grass, the tip, fringe, film etc., account for 10～15% of herb.

2. refining blade is handled through three changes (clean, permeate, soften), washes immersion with water

20～40 minutes,, make grass through dehydration again through infiltration, stripping 8～15% solution extracts

The sheet mass dryness fraction reaches 25～30% becomes the straw pulp raw material, is stored in the feed bin.

3. the blade of mass dryness fraction 25～30% is worn into the SR ° of straw pulp about 50 degree through fiberizer.

4. with pulp machine or paper machine straw pulp is produced commodity.

The method of refining careless slag resource is:

1. will make with extra care careless ground-slag with pulverizer and be broken into powder below 5 orders.

2. preparation compound additive: with the function preparation (as organic selenium, organic calcium, phosphoric acid urine etc.

Preparation) press (1～20) with carrier (as refining grass meal below 80 orders, pomace powder etc.):

(99～80) are formulated.

3. powder and compound additive are mixed by 〉=90 :≤10 weight ratio, or reshaping,

Drying is made high-quality grass fiber feed.

Good effect after invention is implemented is:

1. when developing the raw material of industry of high-quality, can eliminate owing to a large amount of careless classes of processing, and

Environmental problems such as the atmosphere that produces is contaminated.

2. can in numerous zones, reduce or eliminate because serious to the water source of papermaking wastewater discharging

Pollute, and can promote the development of paper industry.

3. can significantly increase the number of animals raised of the careless livestock of food, improve raise competence, promotion animal husbandry

Development.

The product that application the present invention can make has:

1. the refining blade raw materials of industry such as () papermaking;

2. the refining careless slag raw materials of industry such as () feeds;

3. high-quality paper pulp;

4. high-quality fiber feedstuff.

Embodiment:

Get 1500 kilograms of wheat straws (or straw) through removal of impurities, dedust soil, section, sorting must be made with extra care about 1150 kilograms of blade, about 350 kilograms of refining careless slag.

1150 kilograms of refining blades through dewatering, the blade mass dryness fraction being reached about 30%, make about 1000 kilograms of paper pulp through the grinding of secondary mill again through three change processing, produce fluting medium with it.

The leading indicator of product: quantitatively: 160g/m ²± 8, tightness: be not less than 0.50g/m ², fracture length: be not less than 3750m, ring crush intensity: be not less than 7.7Nm/g.

Add 8 kilograms of 199 kilograms of fresh grain stillages and compound additives after 350 kilograms of refining careless ground-slags are broken, fully mix aftershaping, dry about 400 kilograms of the product that gets.

The leading indicator of product: moisture :≤13%, crude protein: 〉=12%, slightly refer to fat 〉=4%.

Claims

1. a careless class pollution-free pulping and pay the method for product resourceization is characterized in that:

By specific specification requirement, section, sorting make the raw material of industry and pair products such as papermaking with careless class, promptly refining blade and refining careless slag.

2. according to the described careless class pollution-free pulping of claim 1 and pay the side of product resourceization

Method is characterized in that:

Pollution-free pulping is to change (infiltration, softening, clean) by refining blade through three to handle, and handles through special-purpose fiberizer again, makes frotation, reaches the requirement of the paper of manufacturing paper with pulp, and makes the high-quality straw pulp.

3. described according to claim 1, the side of careless class pollution-free pulping and pair product resourceization thereof

Method is characterized in that:

Refining careless slag, through pulverizing powder, press special ratios again, powder: compound additive=〉=90: after≤10 weight ratio is mixed, after the moulding, cooling (or drying) again, make serial high-quality fiber feedstuff.

Compound additive is to press (1～20) with function preparation (organic selenium, organic calcium, phosphoric acid urine etc.) and carrier (pomace powder, the following refining grass meal of 80 orders etc.): (99～80) are formulated.