CN105254447A - Method for producing organic fertilizer through from black liquor extracted from biological enzyme pretreated wheat straws - Google Patents
Method for producing organic fertilizer through from black liquor extracted from biological enzyme pretreated wheat straws Download PDFInfo
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- CN105254447A CN105254447A CN201510602091.0A CN201510602091A CN105254447A CN 105254447 A CN105254447 A CN 105254447A CN 201510602091 A CN201510602091 A CN 201510602091A CN 105254447 A CN105254447 A CN 105254447A
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- biological enzyme
- black liquor
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Abstract
The invention relates to a method for producing an organic fertilizer from a black liquor extracted from biological enzyme pretreated wheat straws, and belongs to the field of production of organic fertilizers. The method mainly comprises the steps of extraction of the black liquor from the biological enzyme pretreated wheat straws, and production of the organic fertilizer, wherein the extraction of the black liquor from the biological enzyme pretreated wheat straws comprises: wet material preparation, biological enzyme pretreatment, extrusion treatment for generating the black liquor, and storage of the pretreated black liquor. The production of the organic fertilizer comprises: evaporative concentration of the black liquor, gunite pelletizing, hot and cold screening, and preparation of the highly active organic fertilizer. The method changes wastes into valuables, high activity of the produced organic fertilizer, reduction of the sewage treatment cost, and running cost reduction.
Description
Technical field
The invention belongs to organic fertilizer production field, particularly relate to a kind of method extracting black liquor production fertilizer with biological enzyme pre-treatment wheat straw.
Background technology
The boiling in paper mill now generally uses pharmaceutical chemicals stripping, removes the reaction process of lignin, and general chemical pulping not only will use various pharmaceutical chemicals, and cost is high, energy consumption is large.And adopt bio-enzyme degradation lignin, carry out pre-treatment to wheat straw, method is simple, and environmentally safe, becomes low molecule lignin by the lignin degradation of wheat straw, add lignin stripping and by the ability of extracting, thus realize lignin and Mierocrystalline cellulose, being separated of hemicellulose.Pretreated wheat straw recycling alkaline process is manufactured paper with pulp true qualities paper for daily use, can produce some waste liquids-pretreated black liquor in employing biological enzyme preprocessing process.Be that this black liquor is directly entered sewage work at present, greatly can increase the expense of sewage disposal like this.Also do not find at present to adopt in biological enzyme pre-treatment wheat straw process and produce the technology that pretreated black liquor is used for producing fertilizer.
Summary of the invention
The object of this invention is to provide a kind of method extracting black liquor production fertilizer with biological enzyme pre-treatment wheat straw.Its method is in the process using biological enzyme pre-treatment+alkaline process production true qualities paper for daily use, after employing biological enzyme preconditioning technique, through the black liquor that simple helix pulp grinder is extruded, the seven body quintuple effect evaporators delivering into the evaporation section of alkali collection carry out evaporation concentration and become concentrated black liquid.Then concentrated black liquid is gone out to have highly active fertilizer by spray granulation, hot cold screening system final production.
Object of the present invention realizes by following technical proposals: a kind of method extracting black liquor production fertilizer with biological enzyme pre-treatment wheat straw, mainly comprise the extraction of black liquor and production two portions of fertilizer after biological enzyme pre-treatment wheat straw, wherein, after biological enzyme pre-treatment wheat straw, the abstraction process of black liquor comprises: the storage of the black liquor-black liquor after wet feed preparation-biological enzyme pre-treatment-extrusion process.Organic fertilizer production operation comprises: black liquor vaporizing concentrates-spray granulating machine-hot cold screening system-obtained high reactivity fertilizer.
After biological enzyme pre-treatment wheat straw, the processing parameter of black liquid extraction is:
Biological enzyme consumption: 3%(with wheat straw oven-dry weight for benchmark)
Biological enzyme pretreatment temperature: 50 DEG C
Wheat straw mass dryness fraction: 18-20%
Biological enzyme pretreatment time: 50h (wheat straw and biological enzyme carry out temperature of reaction reach 55 DEG C start timing), condition: 8≤PH≤10; T=55-57 DEG C
Extract black liquid consistency: 8-10%;
Extract black liquor temperature: 80 DEG C.
The processing parameter of organic fertilizer production under above-mentioned condition:
Black liquid consistency after evaporation concentration: 45%
Black liquor temperature after evaporation concentration: 60 DEG C
Tablets press head temperature: 400-500 DEG C
Tablets press tail temperature: 100-110 DEG C
Spray pressure: 0.25-0.45MPa
Product granularity (1.00-4.75mm): >=90%
Organic massfraction (to dry): >=45%
The massfraction (to dry) of total nutrient: >=5.0%
The massfraction (to dry) of moisture (fresh sample) :≤30%
Potential of hydrogen: PH=5.5-8.5.
The present invention has following unusual effect:
1. with farm crop wheat straw for raw material, adopt biodegradation technique to extract organic, the fertilizer active organic matter of production is high (reach more than 65%, wherein content of humic acid is up to 30 ~ 35%), can be decomposed by soil microorganisms and utilize, greatly improve the physical properties of soil.
2. organic fertilizer production adopts spray granulation, and particle is little, and moisture is few, and hardness is large, can machine sowing, and full water-soluble, high reactivity, can promote plant disease-resistant, high yield, and the farm crop after fertilising are low without chemical fertilizer, pesticide residue degree, have the advantages such as environmental protection.
3. reducing discharging of waste liquid, greatly reduce sewage disposal expense, without the need to carrying out conventional alkali collection, reducing running cost.
4. will there is the NPD projects of organic fertilizer production in this technological development, and can solve local part labour employment problem, social benefit is remarkable.
Embodiment
Technical solution of the present invention embodiment is divided into the extraction of black liquor and production two portions of fertilizer after biological enzyme pre-treatment wheat straw:
1. the extraction of black liquor after biological enzyme pre-treatment wheat straw.
1.1 wet feed preparations:
By the wheat straw that purchase comes, be transported to chaffcutter and cut into the long tablet of 15-30mm, after the dedusting of goat's horn fly-ash separator, with rotary conveyor conveying, dewater after rinsing machine, waterpower grass washing machine are washed, to next procedure.
The extraction of 1.2 biological enzyme pre-treatment black liquor:
Tablet after the washing dehydration come through getting the raw materials ready is delivered to biological enzyme pre-treatment storehouse through rotary conveyor, according to pretreatment technology, biological enzyme pre-treatment is carried out to the wheat straw after washing, the pretreated wheat straw of biological enzyme enters simple helix pulp-extruding machine and extrudes, black liquid consistency after extruding is 8-10%, temperature about 80 DEG C, is delivered to black liquor storage pool stand-by.
1.3 major equipments:
Roller-type hay cutter: 12t/h
Rinsing machine: 8m
3
Waterpower grass washing machine: 60m
3
Inclined helix dehydrator; 200t/d
Biological enzyme pre-processing device: 9000m
3
Simple helix pulp-extruding machine: ZLYA1100.
1.4 black liquid extraction technical process:
Wheat straw-roller-type hay cutter-fly-ash separator-rotary conveyor-rinsing machine-waterpower grass washing machine---inclined helix dehydrator-rotary conveyor-biological enzyme pre-treatment storehouse-simple helix pulp-extruding machine-black liquor storage pool.
The processing parameter of black liquor is extracted after 1.5 biological enzyme pre-treatment wheat straws:
Biological enzyme consumption: 3%(with wheat straw oven-dry weight for benchmark)
Biological enzyme pretreatment temperature: 50 DEG C
Wheat straw mass dryness fraction: 18-20%
Biological enzyme pretreatment time: 50h (wheat straw and biological enzyme carry out temperature of reaction reach 55 DEG C start timing), condition: 8≤PH≤10; T=55-57 DEG C
Extract black liquid consistency: 8-10%;
Extract black liquor temperature: 80 DEG C.
2. the production of fertilizer.
2.1 black liquor vaporizings concentrate:
From the black liquor produced after biological enzyme pre-treatment wheat straw, send into according to black liquor vaporizing program the evaporation concentration that seven body quintuple effect evaporators carry out black liquor, become concentrated black liquid, black liquid consistency after concentrated: 45%, temperature: 60 DEG C, stored for future use.
2.2 organic fertilizer production operations:
Evaporation concentration black liquor afterwards-by spray granulating machine-roller grizzly extension set-cylinder cooler-coating machine-until produce qualified finished product fertilizer.
2.3 major equipments:
Plate-type evaporator: design pressure: housing 0.095MPa; Well heater 0.3MPa;
Heat interchanging area: 640 ㎡
Spray granulating machine: Φ 4250 × 16000mm, drum speed 4.2r/min
Roller grizzly extension set: sieve nest rotating speed 12.5r/min, throughput 10 ~ 12t/h
Cylinder cooler: Φ 1800X18000mm, drum speed n=5r.p.m
Coating machine: cylindrical shell wall thickness 12mm, drum speed n=13r.p.m.
2.4 technical process:
For sale from the black liquor-evaporation concentration after biological enzyme pre-treatment wheat straw-spray granulating machine-roller grizzly extension set-cylinder cooler-obtained high reactivity fertilizer-coating machine-finished product warehouse-in.
2.5 processing parameters:
Black liquid consistency after evaporation concentration: 45%
Black liquor temperature after evaporation concentration: 60 DEG C
Tablets press head temperature: 400-500 DEG C
Tablets press tail temperature: 100-110 DEG C
Spray pressure: 0.25-0.45MPa
Product granularity (1.00-4.75mm): >=90%
Organic massfraction (to dry): >=45%
The massfraction (to dry) of total nutrient: >=5.0%
The massfraction (to dry) of moisture (fresh sample) :≤30%
Potential of hydrogen: PH=5.5-8.5.
The present invention is for raw material with the wheat straw of Ningxia and surrounding area, employ new technology-biological enzyme pre-treatment+soda pulping manufactures paper with pulp true qualities paper for daily use, sewage work's process is not directly entered adopting the black liquor produced in the process of biological enzyme pre-treatment new technology, but turned waste into wealth, extract organic matter wherein, produce active high fertilizer by evaporation concentration.Not only increase income, and solve some people labour employment problem, produce good economic benefit and social benefit.
Claims (3)
1. the method for fertilizer produced by the black liquor extracted with biological enzyme pre-treatment wheat straw, it is characterized in that the method comprises the extraction of black liquor and production two portions of fertilizer after biological enzyme pre-treatment wheat straw, wherein, after biological enzyme pre-treatment wheat straw, the abstraction process of black liquor comprises: wet feed preparation-biological enzyme pre-treatment-wheat straw extrusion process produces black liquor liquid; Organic fertilizer production operation comprises: black liquor vaporizing concentrates-spray granulating machine-hot cold screening system-obtained high reactivity fertilizer.
2. method according to claim 1, is characterized in that the processing parameter of the method biological enzyme pre-treatment black liquid extraction is:
Biological enzyme consumption: 3%(with wheat straw oven-dry weight for benchmark)
Biological enzyme pretreatment temperature: 50 DEG C
Wheat straw mass dryness fraction: 18-20%
Biological enzyme pretreatment time: 50h (wheat straw and biological enzyme carry out temperature of reaction reach 55 DEG C start timing), condition: 8≤PH≤10; T=55-57 DEG C
Extract black liquid consistency: 8-10%;
Extract black liquor temperature: 80 DEG C.
3. method according to claim 1, the processing parameter carrying out organic fertilizer production under it is characterized in that previous process condition is:
Black liquid consistency after evaporation concentration: 45%
Black liquor temperature after evaporation concentration: 60 DEG C
Tablets press head temperature: 400-500 DEG C
Tablets press tail temperature: 100-110 DEG C
Spray pressure: 0.25-0.45MPa
Product granularity (1.00-4.75mm): >=90%
Organic massfraction (to dry): >=45%
The massfraction (to dry) of total nutrient: >=5.0%
The massfraction (to dry) of moisture (fresh sample) :≤30%
Potential of hydrogen: PH=5.5-8.5.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819915A (en) * | 2016-06-08 | 2016-08-03 | 宁夏紫荆花纸业有限公司 | Method for producing organic fertilizer from wheat straw soda pulping process black liquor and corn fermentation glutamic acid waste liquor |
| CN105819916A (en) * | 2016-06-08 | 2016-08-03 | 宁夏紫荆花纸业有限公司 | Method for producing organic fertilizer from reed soda pulping process black liquor and corn fermentation glutamic acid waste liquor |
| CN105819917A (en) * | 2016-06-08 | 2016-08-03 | 宁夏紫荆花纸业有限公司 | Method for producing organic fertilizer from rice straw soda pulping process black liquor and corn fermentation glutamic acid waste liquor |
| CN109041723A (en) * | 2018-07-27 | 2018-12-21 | 内蒙古蒙草生态环境（集团）股份有限公司 | The after-culture method of Degraded Pastures |
| CN112811953A (en) * | 2020-12-31 | 2021-05-18 | 齐鲁工业大学 | Method for preparing bio-mechanical pulp and biomass compound fertilizer from wheat straw sheaths |
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| CN1310258A (en) * | 2001-03-16 | 2001-08-29 | 山东大学 | Biological pretreatment process of preparing chemical mechanical straw pulp |
| CN1395002A (en) * | 2002-03-28 | 2003-02-05 | 姜占定 | Pulp-making process using biological fermentation method |
| CN101209932A (en) * | 2006-12-25 | 2008-07-02 | 山东泉林纸业有限责任公司 | Method for producing fulvic acids fertilizer by using alkaline process black liquor |
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2015
- 2015-09-21 CN CN201510602091.0A patent/CN105254447A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202466A (en) * | 1998-04-17 | 1998-12-23 | 赵德志 | Comprehensive treatment process for papermaking wastewater by using ammonium sulfite method |
| CN1310258A (en) * | 2001-03-16 | 2001-08-29 | 山东大学 | Biological pretreatment process of preparing chemical mechanical straw pulp |
| CN1395002A (en) * | 2002-03-28 | 2003-02-05 | 姜占定 | Pulp-making process using biological fermentation method |
| CN101209932A (en) * | 2006-12-25 | 2008-07-02 | 山东泉林纸业有限责任公司 | Method for producing fulvic acids fertilizer by using alkaline process black liquor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819915A (en) * | 2016-06-08 | 2016-08-03 | 宁夏紫荆花纸业有限公司 | Method for producing organic fertilizer from wheat straw soda pulping process black liquor and corn fermentation glutamic acid waste liquor |
| CN105819916A (en) * | 2016-06-08 | 2016-08-03 | 宁夏紫荆花纸业有限公司 | Method for producing organic fertilizer from reed soda pulping process black liquor and corn fermentation glutamic acid waste liquor |
| CN105819917A (en) * | 2016-06-08 | 2016-08-03 | 宁夏紫荆花纸业有限公司 | Method for producing organic fertilizer from rice straw soda pulping process black liquor and corn fermentation glutamic acid waste liquor |
| CN109041723A (en) * | 2018-07-27 | 2018-12-21 | 内蒙古蒙草生态环境（集团）股份有限公司 | The after-culture method of Degraded Pastures |
| CN112811953A (en) * | 2020-12-31 | 2021-05-18 | 齐鲁工业大学 | Method for preparing bio-mechanical pulp and biomass compound fertilizer from wheat straw sheaths |
| CN112811953B (en) * | 2020-12-31 | 2023-06-16 | 齐鲁工业大学 | Method for preparing biomass compound fertilizer by utilizing waste materials in process of preparing bio-mechanical pulp by wheat straw leaf sheaths |
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