CN105237297A - Method for producing organic-inorganic mixed fertilizer by using black liquid extracted through pulping of biological enzyme pre-treatment alkaline wheat straw - Google Patents
Method for producing organic-inorganic mixed fertilizer by using black liquid extracted through pulping of biological enzyme pre-treatment alkaline wheat straw Download PDFInfo
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- CN105237297A CN105237297A CN201510625630.2A CN201510625630A CN105237297A CN 105237297 A CN105237297 A CN 105237297A CN 201510625630 A CN201510625630 A CN 201510625630A CN 105237297 A CN105237297 A CN 105237297A
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Abstract
The invention relates to a method for producing an organic-inorganic mixed fertilizer by using a black liquid extracted through pulping of biological enzyme pre-treatment alkaline wheat straw, and belongs to the field of fertilizer production. The method comprises: black liquid extraction after pre-treatment of wheat straw with biological enzyme, pre-treated alkaline wheat straw pulp black liquid extraction, and organic-inorganic mixed fertilizer production, wherein the black liquid extraction after the pre-treatment of the wheat straw with the biological enzyme comprises wet method material preparing, biological pre-treatment, wheat straw extrusion treatment to produce the black liquid, and conveying of the black liquid to a black liquid storage groove, the alkaline wheat straw pulp black liquid extraction comprises alkaline cooking of wheat straw after the pre-treatment, screening of the black liquid and the coarse pulp after the extrusion through a pulp extrusion device, countercurrent washing of the coarse pulp through four pulp washing devices connected in series to extract the black liquid, and conveying of the black liquid to the black liquid storage groove, and the organic-inorganic mixed fertilizer production comprises that the black liquid mixed in the black liquid storage groove passes through a black liquid filter, the obtained black liquid is concentrated through an evaporation station, the concentrated black liquid is passes through a pulp spraying granulation machine and a hot and cold screening system, and the organic-inorganic mixed fertilizer finished product is packaged. According to the present invention, the waste is turned into treasure, and the produced fertilizer is rich in biological agents, and has effects of plant disease resistance promoting and high yield.
Description
Technical field
The invention belongs to field of fertilizer production, particularly the method for organic-inorganic mixed fertilizer produced by a kind of black liquor extracted with the pretreated alkaline process ryegrass pulping of biological enzyme.
Background technology
Current paper mill generally uses pharmaceutical chemicals stripping, remove the reaction process of lignin carries out boiling, 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.Black liquor can be produced in employing biological enzyme preprocessing process, and after carrying out alkaline cooking after wheat straw pre-treatment, wash the black liquor of generation, conventional is by these black liquor after black liquor filter filters, enter the evaporator section of alkali collection, burning zone, causticization section recovery alkali successively, whole alkali collection running cost is higher.At present, also do not find that the method for organic-inorganic mixed fertilizer produced by the black liquor extracted with the pretreated alkaline process ryegrass pulping of biological enzyme.
Summary of the invention
The object of this invention is to provide a kind of method that organic-inorganic mixed fertilizer produced by black liquor extracted with the pretreated alkaline process ryegrass pulping of biological enzyme.Its method is in the process using biological enzyme pretreated 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, and the thin phenol water will produced after the thick plasm scouring of pretreated straw cooking gained.After the mixing of black liquor storagetank, after black liquor filter filters, deliver into the evaporation section of alkali collection together, carry out evaporation concentration through seven body quintuple effect evaporators of evaporator section and become concentrated black liquid.Then concentrated black liquid is gone out to have highly active organic-inorganic mixed 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 organic-inorganic mixed fertilizer with biological enzyme pre-treatment+alkaline process ryegrass pulping.Mainly comprise the extraction of soda straw pulp black-liquor and the production of organic-inorganic mixed fertilizer after the extraction of black liquor after biological enzyme pre-treatment wheat straw, pre-treatment.Wherein, after biological enzyme pre-treatment wheat straw, the extraction of black liquor comprises: wet feed preparation, biological enzyme pre-treatment, wheat straw extrusion process produce black liquor, black liquor to black liquor storagetank; The extraction of soda straw pulp black-liquor comprises: the black liquor after pre-treatment after the alkaline cooking of wheat straw, pulp-extruding machine extruding, the choosing of thick pulp screen, four thick slurries of wash hollander counter flow in series washing extract black liquor, black liquor to black liquor storagetank; Organic-inorganic mixed fertilizer production line comprises:, spray granulating machine, hot cold screening system, organic-inorganic mixed fertilizer finished product packing concentrated through black liquor filter, evaporator station at the mixed black liquor of black liquor storagetank.
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 that soda straw pulp black-liquor extracts is:
Dress pot amount: 7000 ± 100 kilograms/ball (over dry gauge);
Boiling alkali charge: 9%;
Cooking pressure: 0.65MPa;
Liquor ratio: 1:2.9-3.3;
Goal liquor strength: 65 ± 2g/l;
Fluid temperature: >=80 DEG C;
Cooking time: 3 hours;
Thick starch degree: k=16-20(permanganate number);
Extract black liquid consistency: 8-10%;
Extract black liquor temperature: 80 DEG C.
The processing parameter that under above-mentioned condition, organic-inorganic mixed fertilizer is produced 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 or 3.35mm-5.6mm): >=70%;
Organic massfraction:
>=20%(I type), >=15%(II type), >=8%(III type);
The massfraction of total nutrient:
>=15%(I type), >=25%(II type), >=30%(III type);
The massfraction of moisture :≤12%(I type) ,≤12%(II type) ,≤8%(III type);
Potential of hydrogen: PH=3.0-8.0;
Massfraction≤3.0 of chlorion.
The present invention has following unusual effect:
1. with farm crop wheat straw for raw material, adopt biodegradation technique to extract organic, the organic-inorganic mixed fertilizer of production, active organic matter is high (reaches 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.The fertilizer that present method is produced can improve the specific absorption of N P and K, and specific absorption improves about 30-50%, is rich in bacteria agent, plays effect of fixed nitrogen, phosphorus decomposing, potassium decomposing.
2. organic-inorganic mixed fertilizer is produced and is adopted 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 fertilising plant has green advantage.
3. the present invention is turned waste into wealth, and reduces discharging of waste liquid, greatly reduces sewage disposal expense, without the need to carrying out conventional alkali collection, reduces running cost.
4. the present invention opens new production fertilizer pattern, and can solve local part labour employment problem, social benefit is remarkable.
Embodiment
The specific embodiment of the invention is the extraction of soda straw pulp black-liquor and production three part of organic-inorganic mixed fertilizer after the extraction of black liquor after biological enzyme pre-treatment wheat straw, pre-treatment.
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, dewater after rinsing machine, waterpower grass washing machine are washed, to next procedure by the defeated priority of rotary conveyor.
1.2 biological enzymes locate the extraction of black liquor after wheat straw in advance:
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 storagetank 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 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 storagetank.
The processing parameter extracting black liquor after 1.5 biological enzyme pre-treatment wheat straws 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.
2. the extraction of soda straw pulp black-liquor after pre-treatment.
2.1 batch cookings:
After the pre-dipping machine of spiral, packer, enter rotary spherical digester after the wheat straw sheet come from biological enzyme pretreatment workshop and cooking liquor mix and carry out boiling.Well-done thick slurry spurts to jetting storehouse, and the bottom of jetting storehouse adopts spiral propeller, and Straw Pulp is pushed into simple helix pulp-extruding machine, black liquor is extruded by pulp-extruding machine, enters Cu Jiangzhu pond, underground after thick slurry thin phenol water dilution.
The extraction of 2.2 Straw Pulp washing black liquid:
The thick slurry of underground drainer after dilution, with being pumped to 2m
2vanning is roughly selected, and the slurry after roughly selecting is through the flat valve drum vacuum pulp washer group countercurrent washing of four series connection, and the Straw Pulp after washing enters next procedure.Black liquor after washing mixes in black liquor storagetank with the black liquor after biological enzyme pre-treatment wheat straw.
2.3 major equipments:
Rotary spherical digester: ZCQ40m
3;
Simple helix pulp-extruding machine: ZLYA1100;
Flat valve drum vacuum pulp washer: 60m
3.
2.4 technical process:
Pretreated wheat straw-rotary spherical digester-jetting storehouse-simple helix pulp-extruding machine-underground the drainer of biological enzyme-wash front stock tank-2m
2black liquor-black liquor storagetank after vanning-tetra-series plane valve drum vacuum pulp washing machine group-washing.
The processing parameter that after 2.5 pre-treatment, soda straw pulp black-liquor extracts is:
Dress pot amount: 7000 ± 100 kilograms/ball (over dry gauge);
Boiling alkali charge: 9%;
Cooking pressure: 0.65MPa;
Liquor ratio: 1:2.9-3.3;
Goal liquor strength: 65 ± 2g/l;
Fluid temperature: >=80 DEG C;
Cooking time: 3 hours;
Thick starch degree: k=16-20(permanganate number);
Extract black liquid consistency: 8-10%;
Extract black liquor temperature: 80 DEG C.
The production of 3 organic-inorganic mixed fertilizers.
3.1 black liquor vaporizings concentrate:
From the black liquor of storagetank, send into according to black liquor evaporator area 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.
The production of 3.2 organic-inorganic mixed fertilizers:
Evaporation concentration black liquor afterwards, by spray granulating machine, roller grizzly extension set, cylinder cooler, coating machine, final production goes out qualified finished product organic-inorganic mixed fertilizer.
3.3 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.
3.4 technical process:
Black liquor-evaporation concentration-spray granulating machine-roller grizzly extension set-cylinder cooler-coating machine-finished product warehouse-in from black liquor storagetank is for sale.
3.5 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 or 3.35mm-5.6mm): >=70%;
Organic massfraction:
>=20%(I type), >=15%(II type), >=8%(III type);
The massfraction of total nutrient:
>=15%(I type), >=25%(II type), >=30%(III type);
The massfraction of moisture :≤12%(I type) ,≤12%(II type) ,≤8%(III type);
Potential of hydrogen: PH=3.0-8.0;
Massfraction≤3.0 of chlorion.
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, period is adopting the black liquor and pretreated straw cooking that produce in the process of biological enzyme pre-treatment wheat straw, the thin phenol water carrying out thick plasm scouring generation enters alkali collection evaporator section, evaporation concentration becomes concentrated black liquid, extract organic matter wherein and be rich in fertilizer element, producing highly active organic-inorganic mixed fertilizer material.Not only increase income, and solve the labour employment problem of some people, produce good economic benefit and social benefit.
Claims (4)
1. the method for organic-inorganic mixed fertilizer produced by the black liquor extracted with the pretreated alkaline process ryegrass pulping of biological enzyme, it is characterized in that the method comprises the extraction of soda straw pulp black-liquor and production three part of organic-inorganic mixed fertilizer after the extraction of black liquor after biological enzyme pre-treatment wheat straw, pre-treatment, wherein, after biological enzyme pre-treatment wheat straw, the extraction of black liquor comprises: wet feed preparation, biological enzyme pre-treatment, wheat straw extrusion process produce black liquor; The extraction of soda straw pulp black-liquor comprises: black liquor are extracted in the black liquor after pre-treatment after the alkaline cooking of wheat straw, pulp-extruding machine extruding, the choosing of thick pulp screen, four wash hollander counter flow in series washings; Fertilizer-inorganic mixture manufacturing line comprises: the black liquor after extraction is concentrated through evaporator station, spray granulating machine, hot cold screening system, organic-inorganic mixed fertilizer finished product packing.
2. method according to claim 1, after it is characterized in that described 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.
3. method according to claim 1, is characterized in that the processing parameter that described soda straw pulp black-liquor extracts is:
Dress pot amount: 7000 ± 100 kilograms/ball (over dry gauge);
Boiling alkali charge: 9%;
Cooking pressure: 0.65MPa;
Liquor ratio: 1:2.9-3.3;
Goal liquor strength: 65 ± 2g/l;
Fluid temperature: >=80 DEG C;
Cooking time: 3 hours;
Thick starch degree: k=16-20(permanganate number);
Extract black liquid consistency: 8-10%;
Extract black liquor temperature: 80 DEG C.
4. the method according to claim, is characterized in that the described processing parameter carrying out organic-inorganic mixed fertilizer production 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 or 3.35mm-5.6mm): >=70%;
Organic massfraction:
>=20%(I type), >=15%(II type), >=8%(III type);
The massfraction of total nutrient:
>=15%(I type), >=25%(II type), >=30%(III type);
The massfraction of moisture :≤12%(I type) ,≤12%(II type) ,≤8%(III type);
Potential of hydrogen: PH=3.0-8.0;
Massfraction≤3.0 of chlorion;
Potential of hydrogen: PH=3.0-8.0;
Massfraction≤3.0 of chlorion.
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Cited By (6)
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| CN106087512A (en) * | 2016-07-20 | 2016-11-09 | 宁夏紫荆花纸业有限公司 | The method that wheat straw KOH and NaOH mixing alkaline pulping black liquor prepare organic and inorganic fertilizer |
| CN106631564A (en) * | 2016-11-29 | 2017-05-10 | 宁夏紫荆花纸业有限公司 | Method for producing potassium fulvate organic fertilizer by biological enzyme pretreatment and potassium hydroxide alkaline process wheat straw pulping black liquid extraction |
| CN107938417A (en) * | 2017-11-29 | 2018-04-20 | 何永庆 | The method that organic fertilizer is prepared using pulping waste liquor |
| CN107964819A (en) * | 2017-11-29 | 2018-04-27 | 何永庆 | The method of low alkaline boiling production true qualities paper pulp |
| CN112761013A (en) * | 2020-12-31 | 2021-05-07 | 齐鲁工业大学 | Method for preparing natural-color biomechanical pulp by treating wheat straw with hot steam and biological enzyme and fully utilizing byproducts |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106087512A (en) * | 2016-07-20 | 2016-11-09 | 宁夏紫荆花纸业有限公司 | The method that wheat straw KOH and NaOH mixing alkaline pulping black liquor prepare organic and inorganic fertilizer |
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| CN107964819A (en) * | 2017-11-29 | 2018-04-27 | 何永庆 | The method of low alkaline boiling production true qualities paper pulp |
| CN112761013A (en) * | 2020-12-31 | 2021-05-07 | 齐鲁工业大学 | Method for preparing natural-color biomechanical pulp by treating wheat straw with hot steam and biological enzyme and fully utilizing byproducts |
| 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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Application publication date: 20160113 |