CN1785928A - Biodegradable swelling slow releasing fertilizer and its manufacturing method - Google Patents
Biodegradable swelling slow releasing fertilizer and its manufacturing method Download PDFInfo
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- CN1785928A CN1785928A CNA2005100157117A CN200510015711A CN1785928A CN 1785928 A CN1785928 A CN 1785928A CN A2005100157117 A CNA2005100157117 A CN A2005100157117A CN 200510015711 A CN200510015711 A CN 200510015711A CN 1785928 A CN1785928 A CN 1785928A
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Abstract
The present invention discloses a bio-degradable puffed slowly-released chemical fertilizer and its preparation method. Said method includes the following steps: pulverizing industrial and agricultural wastes and discards of tained old grain, etc., regulating quality, uniformly mixing the above-mentioned obtained material with chemical fertilizer, utilizing puffing process to prepare puffed material, further breaking to obtain granules whose grain size is 5-8mm, spraying oil foot and granulating so as to obtain the invented product.
Description
[technical field]
The present invention relates to fertilizer and fertilizer processing technique field, particularly a kind of Biodegradable swelling slow releasing fertilizer and manufacture method thereof of utilizing agriculture and industry waste.
[background technology]
This season utilization ratio of chemical fertilizer is low to be to cause pollution such as rivers,lakes and seas oxygen enrichmentization, and enters one of major reason that human body constitutes a threat to human health and ecotope by food chain.Therefore improve agrochemicals utilization ratio, development environmental friendliness slow-release material and be the very important and unusual urgent task of of countries in the world chemical circle.Wherein, the release chemical fertilizer has the effect that is complementary with plant physiology, child-bearing pattern, makes it be discharged into surrounding environment at specific time according to predetermined speed, both can increase operation rate, reduce labour intensity, can alleviate pollution again, therefore enjoy various countries scholar's great attention environment.
In the prior art, employing solubility urea-formaldehyde resin, thermoplastic resin, dewaxing, coal tar, pitch etc. have appearred, produce release controlled fertilizer by film-coating technique, or adopt urease inhibitor type, polyacrylamide, paraffin-natural rosin, nano material, waste and old agripast, prepare release controlled fertilizer in modes such as fertilizer bag fertilizer.But there are two subject matters in this class release controlled fertilizer: the one, and contaminate environment, inorganics (as silicon, gypsum, metal-salt etc.), organic high molecular polymer (as polyacrylamide, resin, polyolefine, waste and old agripast etc.) life-time service as slow-release material, meeting grievous injury agricultural land soil normal configuration, influence output and the quality of farm crop, cause new environmental pollution and ecosystem imbalance; The 2nd, cost an arm and a leg, this class release controlled fertilizer normally common chemical fertilizer 2-10 doubly.Therefore reduce production costs, readily biodegradable, the research focus that is the various countries scientific worker in the release controlled fertilizer field free from environmental pollution.
[summary of the invention]
The objective of the invention is in order to overcome the deficiencies in the prior art, and provide a kind of Biodegradable swelling slow releasing fertilizer and manufacture method thereof, this release controlled fertilizer adopts agriculture and industry wastes such as rotten grain in storage for years cheap, easily be degraded into soil ulmin in soil, oil foot, add chemical fertilizer, make by modified, expanded, extruder grain technology, help improving Soil structure, can reduce loss of chemical fertilizer and pollute.
The present invention discloses a kind of Biodegradable swelling slow releasing fertilizer for achieving the above object, it is characterized in that it is (14-28) by weight percentage by rotten grain in storage for years, chemical fertilizer and oil foot: (84-67): (2-5) form.
The present invention also discloses a kind of manufacture method of Biodegradable swelling slow releasing fertilizer for achieving the above object.It is characterized in that said concrete steps are as follows:
(1) grain in storage for years that will go bad is pulverized, and sieves and gets granularity＜3mm powder;
(2) (1) powder is sent into intensive mixes in the stirred pot, fed pressure simultaneously and be 0.3-0.5MPa, temperature and be 130-150 ℃, carry out modified not with the dry saturated vapour of water of condensation;
(3) in proportion with (2) modified thing and chemical fertilizer, the screw rod of bulking machine rotate and the acting in conjunction of die head control under, extruding formation strip puff three-dimensional framework structure;
(4) (3) puff is broken into 5-8mm length particle, again to its surface sprinkling oil foot;
(5) (4) material is sent into tablets press and make the cylindrical pellet swelling slow releasing fertilizer, form fine and close protective layer at the chemical fertilizer microparticle surfaces.
The invention has the beneficial effects as follows:
(1) the present invention's swelling slow releasing layer in soil is subjected to microbial process to degrade-come off, and becomes soil ulmin, and whole dispose procedure does not produce the residue (biological degradation rate＞95%) of contaminate environment substantially;
(2) evenly provide nutrient, reduce particularly leaf vegetables content of nitrosamines of farm crop, reach the purpose of safety in production;
(3) increase humus content in the soil, help improving Soil structure, improve the output and the quality of agricultural-food; The minimizing loss of chemical fertilizer causes the pollution to soil, atmosphere, groundwater resource, rivers,lakes and seas; Reduce the consumption of Nonrenewable resources such as oil, coal;
(4) cheap, this Biodegradable swelling slow releasing fertilizer price only is the 1/3-1/7.5 of the U.S., Japanese like product.
[embodiment]
The present invention will go bad agriculture and industry waste such as grain in storage for years pulverize, modified after, be mixed by specified proportion and chemical fertilizer, prepare puff by bulking process, be broken into the 5-8mm particle again, the sprinkling oil foot enters tablets press and makes the cylindrical pellet swelling slow releasing fertilizer.Concrete steps are as follows:
(1) grain in storage for years that will go bad is pulverized, and sieves and gets granularity＜3mm powder;
(2) (1) powder is sent into intensive mixes in the stirred pot, fed pressure simultaneously and be 0.3-0.5MPa, temperature and be 130-150 ℃, carry out modified not with the dry saturated vapour of water of condensation;
(3) with (2) modified thing and chemical fertilizer by weight (15-30): (85-70), under the acting in conjunction that screw rod rotates and die head is controlled of bulking machine, produce high pressure (10MPa), high temperature (160 ℃), high-shear phenomenon, the material generation gelatinization of molten state, the cooling back forms the three-dimensional framework structure;
(4) (3) puff is broken into the 5-8mm particle, again to its surface sprinkling 2-5% oil foot;
(5) (4) material is sent into tablets press and make the cylindrical pellet swelling slow releasing fertilizer, form fine and close protective layer at the chemical fertilizer microparticle surfaces.
Described rotten grain in storage for years refers to be subjected in the storage process mould contamination or worm, mouse, mite erosive corn, Chinese sorghum, wheat, barley, paddy, grain etc.
Described chemical fertilizer is urea, ammonium sulfate, ammonium nitrate, ammonium chloride, bicarbonate of ammonia, calcium superphosphate, fused(calcium magnesium)phosphate, ground phosphate rock, vitriolate of tartar, Repone K, ammonium phosphate, nitrophosphate fertilizer, potassium primary phosphate, saltpetre, nitre phosphorus potash fertilizer etc.
Described oil foot is after squeezing, lixiviates such as soybean, peanut, vegetable seed, cottonseed, flax, maize, sunflower seeds obtain thick oil, the by product after washing and refining.
Described bulking machine is single screw extruding puffing machine or twin screw extruding puffing machine.
Described tablets press is the ring modeling pelletizer.
Embodiment 1
(1) the rotten corn of removing impurity is pulverized, and sieves and gets granularity＜3mm powder;
(2) (1) powder 200kg is sent into intensive mixes in the stirred pot, feed pressure simultaneously and be 0.3MPa, temperature and be 130 ℃, carry out modified not with the dry saturated vapour of water of condensation;
(3) with (2) modified thing and urea by weight 20: 80 mixings, the screw rod of single screw extruding puffing machine rotate and the acting in conjunction of die head control under, the material generation gelatinization of molten state, cooling back formation three-dimensional framework structure;
(4) (3) puff is broken into the 5mm particle, again to the oil foot of its surface sprinkling puff weight 2.5%;
(5) (4) material is sent into the ring modeling pelletizer and make cylindrical pellet swelling slow releasing fertilizer 1025kg.
The product leading indicator: total nitrogen (N) content 〉=35.0%, Biuret Content≤1.0%, quality product reaches the index of slow release fertilizer ad hoc working group (IFSrf) the check slow release fertilizer of European Committee for Standardization (CEN).
Embodiment 2
(1) the rotten wheat of removing impurity is pulverized, and sieves and gets granularity＜3mm powder;
(2) (1) powder 250kg is sent into intensive mixes in the stirred pot, feed pressure simultaneously and be 0.4MPa, temperature and be 140 ℃, carry out modified not with the dry saturated vapour of water of condensation;
(3) with (2) modified thing and calcium superphosphate by weight 25: 75 mixings, the screw rod of twin screw extruding puffing machine rotate and the acting in conjunction of die head control under, the material generation gelatinization of molten state, cooling back formation three-dimensional framework structure;
(4) (3) puff is broken into the 6mm particle, again to the oil foot of its surface sprinkling puff weight 3%;
(5) (4) material is sent into the ring modeling pelletizer and make cylindrical pellet swelling slow releasing fertilizer 1030kg.
Product leading indicator: effective Vanadium Pentoxide in FLAKES (P
2O
5) 〉=10.0%, free acid is (with P
2O
5Meter)≤5.0%, quality product reaches the index of slow release fertilizer ad hoc working group (IFSrf) the check slow release fertilizer of European Committee for Standardization (CEN).
Claims (8)
1 one kinds of Biodegradable swelling slow releasing fertilizers is characterized in that it is (14-28) by weight percentage by rotten grain in storage for years, chemical fertilizer and oil foot: (84-67): (2-5) form.
The manufacture method of 2 Biodegradable swelling slow releasing fertilizers is characterized in that said concrete steps are as follows:
(1) grain in storage for years that will go bad is pulverized, and sieves and gets granularity＜3mm powder;
(2) (1) powder is sent into intensive mixes in the stirred pot, fed pressure simultaneously and be 0.3-0.5MPa, temperature and be 130-150 ℃, carry out modified not with the dry saturated vapour of water of condensation;
(3) in proportion with (2) modified thing and chemical fertilizer, the screw rod of bulking machine rotate and the acting in conjunction of die head control under, extruding formation strip puff three-dimensional framework structure;
(4) (3) puff is broken into 5-8mm length particle, again to its surface sprinkling oil foot;
(5) (4) material is sent into tablets press and make the cylindrical pellet swelling slow releasing fertilizer, form fine and close protective layer at the chemical fertilizer microparticle surfaces.
3 in accordance with the method for claim 2, it is characterized in that said rotten grain in storage for years refers to be subjected in the storage process one or more in mould contamination or worm, mouse, mite erosive corn, Chinese sorghum, wheat, barley, paddy, the grain.
4 according to claim 2 or 3 described methods, it is characterized in that said chemical fertilizer is one or more in urea, ammonium sulfate, ammonium nitrate, ammonium chloride, bicarbonate of ammonia, calcium superphosphate, fused(calcium magnesium)phosphate, ground phosphate rock, vitriolate of tartar, Repone K, ammonium phosphate, nitrophosphate fertilizer, potassium primary phosphate, saltpetre, the nitre phosphorus potash fertilizer.
5 according to claim 2 or 3 described methods, it is characterized in that said oil foot is soybean, peanut, vegetable seed, cottonseed, flax, maize or sunflower seeds after squeezing, lixiviate obtain thick oil, the by product after washing and refining.
6 in accordance with the method for claim 4, it is characterized in that said oil foot is soybean, peanut, vegetable seed, cottonseed, flax, maize or sunflower seeds after squeezing, lixiviate obtain thick oil, the by product after washing and refining.
7 in accordance with the method for claim 2, it is characterized in that said bulking machine is single screw extruding puffing machine or twin screw extruding puffing machine.
8 in accordance with the method for claim 2, it is characterized in that said tablets press is the ring modeling pelletizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100157117A CN1297521C (en) | 2005-10-28 | 2005-10-28 | Biodegradable swelling slow releasing fertilizer and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100157117A CN1297521C (en) | 2005-10-28 | 2005-10-28 | Biodegradable swelling slow releasing fertilizer and its manufacturing method |
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| CN1785928A true CN1785928A (en) | 2006-06-14 |
| CN1297521C CN1297521C (en) | 2007-01-31 |
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| CNB2005100157117A Expired - Fee Related CN1297521C (en) | 2005-10-28 | 2005-10-28 | Biodegradable swelling slow releasing fertilizer and its manufacturing method |
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| CN (1) | CN1297521C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948352A (en) * | 2010-09-15 | 2011-01-19 | 廖大中 | Method for preparing sustained-release fertilizer |
| CN101229983B (en) * | 2007-12-25 | 2011-02-16 | 中国海洋石油总公司 | Lipophilic controlled release fertilizer for bioremediation of oil pollution environment and preparation method thereof |
| CN105110833A (en) * | 2015-09-22 | 2015-12-02 | 宋春刚 | Harm-less fast fermented bio-organic fertilizer and preparation method thereof |
| CN106748208A (en) * | 2016-12-29 | 2017-05-31 | 常熟市添源环保科技有限公司 | A kind of preparation method of vinasse composite highly effective biological organic fertilizer |
| CN107141127A (en) * | 2017-06-28 | 2017-09-08 | 宿州市逢源生物科技有限公司 | A kind of method that application puffing technique prepares degrading slow release urea fertilizer |
| CN107640990A (en) * | 2017-10-26 | 2018-01-30 | 沈阳农业大学 | A kind of slow-release compound fertilizer of maize straw shaping and preparation method thereof |
| CN110240507A (en) * | 2019-06-04 | 2019-09-17 | 福建农林大学 | A kind of preparation method and technology of Tie Guanyin tea waste swelling slow releasing fertilizer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044112C (en) * | 1996-11-20 | 1999-07-14 | 刘凡 | High-energy organic fertilizer |
| CN1319576A (en) * | 2001-04-13 | 2001-10-31 | 曹永强 | Composite organic fertilizer and making method thereof |
-
2005
- 2005-10-28 CN CNB2005100157117A patent/CN1297521C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229983B (en) * | 2007-12-25 | 2011-02-16 | 中国海洋石油总公司 | Lipophilic controlled release fertilizer for bioremediation of oil pollution environment and preparation method thereof |
| CN101948352A (en) * | 2010-09-15 | 2011-01-19 | 廖大中 | Method for preparing sustained-release fertilizer |
| CN101948352B (en) * | 2010-09-15 | 2013-05-22 | 廖大中 | Method for preparing sustained-release fertilizer |
| CN105110833A (en) * | 2015-09-22 | 2015-12-02 | 宋春刚 | Harm-less fast fermented bio-organic fertilizer and preparation method thereof |
| CN105110833B (en) * | 2015-09-22 | 2018-03-23 | 宋春刚 | Innoxious Rapid Fermentation biological organic fertilizer and preparation method thereof |
| CN106748208A (en) * | 2016-12-29 | 2017-05-31 | 常熟市添源环保科技有限公司 | A kind of preparation method of vinasse composite highly effective biological organic fertilizer |
| CN107141127A (en) * | 2017-06-28 | 2017-09-08 | 宿州市逢源生物科技有限公司 | A kind of method that application puffing technique prepares degrading slow release urea fertilizer |
| CN107640990A (en) * | 2017-10-26 | 2018-01-30 | 沈阳农业大学 | A kind of slow-release compound fertilizer of maize straw shaping and preparation method thereof |
| CN110240507A (en) * | 2019-06-04 | 2019-09-17 | 福建农林大学 | A kind of preparation method and technology of Tie Guanyin tea waste swelling slow releasing fertilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1297521C (en) | 2007-01-31 |
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