CN102503687B - Melt granulated polypeptide stable fertilizer and preparation method thereof - Google Patents
Melt granulated polypeptide stable fertilizer and preparation method thereof Download PDFInfo
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- CN102503687B CN102503687B CN2011103342736A CN201110334273A CN102503687B CN 102503687 B CN102503687 B CN 102503687B CN 2011103342736 A CN2011103342736 A CN 2011103342736A CN 201110334273 A CN201110334273 A CN 201110334273A CN 102503687 B CN102503687 B CN 102503687B
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Abstract
The invention discloses a melt granulated polypeptide stable fertilizer and a preparation method thereof, relating to the field of compound fertilizers. The preparation method comprises the following steps: proportionally preparing urea, monoammonium phosphate, ammonium chloride, potassium chloride, compound urease inhibitor, compound nitrification inhibitor, polypeptide synergist and talcum powder; and heating the raw materials, mixing, carrying out spray granulation, cooling, screening, measuring and packaging to obtain the finished product. The stable fertilizer disclosed by the invention has the advantages of high utilization ratio, no pollution and obvious yield increase effect, promotes absorption of microelements, improves the quality of the crops, and enhances the stress tolerance.
Description
Technical field
The present invention relates to the compound manure field, be specifically related to a kind of melt granulated polypeptide stable fertilizer and preparation method thereof.
Background technology
Raising along with people's Environmental awareness, people are to reducing the chemical fertilizer loss, improve utilization rate of fertilizer, alleviating or exempt also more and more attention of fertilizer pollution, to alleviate pollution by chemical fertilizer and improve one of effective measure of utilization rate of fertilizer and reduce applying quantity of chemical fertilizer, but because the restriction of population growth and grain demand, this kind method is difficult to practice.By the improvement of agronomic measures, the optimization of fertilizer ratio, the lifting of agriculturalization service and the popularization of technique of balanced fertilizer, can reduce pollution, improve utilization rate of fertilizer, but this type of technology involves a wide range of knowledge, technical difficulty high, limitation is strong, has especially more increased under the decentralized management pattern and has utilized difficulty.
Stable fertilizer refer to through certain technique add urease inhibitor and (or) nitrification inhibitor, can suppress by urease inhibitor the hydrolysis of urea after being manured into soil, suppress the nitrated of ammonium nitrogen by nitrification inhibitor, a class formulation fertilizer containing nitrogen that makes fertilizer efficiency period obtain prolonging generally comprises nitrogenous binary or three element fertilizers and straight fertilizer.Say that in a sense stable fertilizer belongs to a kind of slow release fertilizer.Stable fertilizer has the utilization rate of fertilizer of raising, reduces the wasting of resources, reduces numerous effects such as polluting, improve agricultural production efficiency.
Stanley chemical fertilizer limited company invested since 2003 and builds single tower and double tower composite fertilizer melt granulated compound fertilizer production line, successively finish at present compound fertilizer production with tower granulation and produced steam self-support and the energy-conservation technological transformation projects such as closed water circulation, gas making and conversion microcomputer control, circulating water excess pressure utilization, listed in " ten large energy conservation projects " project by country, because this project technique is increasingly mature, at present, China has built up nearly 100 high tower compound fertilizer production equipments, and annual aggregated capacity has reached 1,800 ten thousand tons.The construction of these high tower apparatus is that keying action has been played in the lifting of China's compound (closing) fertilizer industry technical equipment, has also made positive contribution for the industrial structure optimization adjustment of China's high-concentration compound fertilizer material and the raising of chemical fertilizer products class.
The present invention is on the basis that the high tower urea-based compound fertilizer material is made, the mineral nutrient element that absorbs by in melting urine slurry, adding combination urease inhibitor, combination nitrification inhibitor and polypeptide synergistic agent and farm crop specific needs, by high column overhead sprinkling pelleting, providing a kind of can transform to nitric nitrogen to ammonium nitrogen, ammonium nitrogen by the establishment amidonitrogen, reduce the nitrated and denitrification loss of nitrogen, prolong the fertilizer effectiveness phase, promote simultaneously crop to the absorption of phosphorus, potassium, improve the manufacture method of the polypeptide stable fertilizer of utilization rate of fertilizer.
Summary of the invention
For the deficiencies in the prior art, the present invention utilizes the high tower urea-based compound fertilizer production equipment, add the mineral nutrient element that combination urease inhibitor, combination nitrification inhibitor and polypeptide synergistic agent and farm crop specific needs absorb, the preparation melt granulated polypeptide stable fertilizer.
A kind of melt granulated polypeptide stable fertilizer of the present invention, technical scheme is as follows:
The feed composition weight part is as follows:
Urea 300-550 part,
Monoammonium phosphate 100-250 part,
Ammonium chloride 100-200 part,
Repone K 100-200 part,
Combination urease inhibitor 0.1-1 part,
Combination nitrification inhibitor 0.1-1 part,
Polypeptide synergistic agent 0.1-1 part,
Filler 50-140 part;
Above-mentioned raw materials is the commercially available prod, wherein:
The content 46.2% of nitrogen is mass percent in the urea;
The content 11.0% of nitrogen in the monoammonium phosphate, the content 44% of Vanadium Pentoxide in FLAKES is mass percent;
The content 24% of nitrogen is mass percent in the ammonium chloride;
Potassium oxide content 61% in the Repone K, is mass percent;
Filler is one or more combinations in talcum powder, calcium powder, the protruding Attapulgite;
The combination urease inhibitor is combined according to weight ratio 1:1:1 by N-normal-butyl thiophosphoryl triamine (C4H14N3PS, nBPT), quinhydrones (C6H6O2, HQ) and phenyl phosphoryl diamine (C6H9N2PO, PPD);
NBPT chemical structural formula HQ chemical structural formula PPD chemical structural formula
The combination nitrification inhibitor is that a class is by Dyhard RU 100 (C
2H
4N
4, DCD), 3，5-dimethylpyrazole (C
5H
8N
2, DMP) combine according to weight ratio 1:1;
DCD chemical structural formula DMP chemical structural formula
The polypeptide synergistic agent belongs to bioabsorbable polymer material, be molecule amount 2000 ~ 5000 with the polymerization polypeptide amino acid of carboxylic acid side chain, be the polymkeric substance that the amino of aspartic acid monomer and carboxyl shrink and form, be a kind of effective fertilizer synergist.
Melt granulated polypeptide stable fertilizer of the present invention, further preferred feed composition weight part is as follows:
Urea 350-490 part,
Monoammonium phosphate 150-220 part,
Ammonium chloride 130-180 part,
Repone K 140-180 part,
Combination urease inhibitor 0.5-1 part,
Combination nitrification inhibitor 0.5-1 part,
Polypeptide synergistic agent 0-0.5 part,
Filler 90-110 part.
Melt granulated polypeptide stable fertilizer of the present invention, most preferred feed composition weight part is as follows:
465 parts in urea,
150 parts of monoammonium phosphates,
133 parts of ammonium chlorides,
140 parts in Repone K,
0.8 part of combination urease inhibitor,
0.6 part of combination nitrification inhibitor,
0.2 part of polypeptide synergistic agent,
110.4 parts of talcum powder.
By the melt granulated polypeptide stable fertilizer that above-mentioned prescription is produced, its total nutrient is 40%, nitrogen (N) 26% wherein, Vanadium Pentoxide in FLAKES (P
2O
5) 6%, potassium oxide (K
2O) 8%, zinc (Zn) 1.08%, iron (Fe) 0.77%, boron (B) 0.10% is mass percent.
The preparation method of melt granulated polypeptide stable fertilizer of the present invention comprises following processing step:
1. in urea melting liquid, add combination urease inhibitor, combination nitrification inhibitor, polypeptide synergistic agent, stirring and evenly mixing, backward its adds monoammonium phosphate, Repone K and the talcum powder of process heating, and it is mixed with urea melting liquid;
2. under the temperature and mechanical agitation of melting mixing liquid self, be combined into rapidly the low temperature eutectic with certain fluidity energy, then adopt spray equipment to carry out sprinkling pelleting, when the spray tear drop falls to passing the airflow of rising in prilling tower, cooling curing forms particle;
3. then, further cool off again, sieve, measure, pack, namely get smooth in appearance, the mellow and full melt granulated polypeptide stable fertilizer product with Pinhole-shaped.
Macrobead under screening operation sieve returns the high tower prilling system after crushed, and small-particle transports rotary drum steam granulation production of compound fertilizer system to, as the particle nucleus use of production of compound fertilizer.
Product of the present invention has following excellent results:
1, improves chemical fertilizer utilization ratio, reduce cost
Studies show that stable fertilizer of the present invention can improve utilization rate of nitrogen fertilizer 60.3%, phosphate fertilizer 5.3%, potash fertilizer 16.7%, can save chemical fertilizer 20% ~ 30% for every mu.
2, promote crop to the absorption of trace element, improve crop quality
Test shows that stable fertilizer of the present invention can make crop trace element content improve 3 ~ 4 times, and the mouthfeel of crop is good, anti-storage, quality better.
3, green non-pollution improves crop anti-adversity, obvious effect of increasing production
Product of the present invention is used and excessively can not burnt seedling, and all is degraded, and does not have residue, green non-pollution, not only can promote root growth, strengthen stress resistance of plant, and can also promote the crop precocity 7 ~ 10 days, prolong 10 ~ 15 days collection period, specific absorption is higher, therefore, and obvious effect of increasing production.
Description of drawings
Accompanying drawing is preparation technology's schema of a kind of melt granulated polypeptide stable fertilizer of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is elaborated, but not only for so.
Example 1:
Solid urea 465kg, with 0.8 kg combination urease inhibitor, become fused solution 0.6kg combination nitrification inhibitor and 0.2 kg content are 40.0% polypeptide synergistic agent is heated to 136 ℃ together, with monoammonium phosphate 150kg, Repone K 140kg, ammonium chloride 133 kg, talcum powder 110.4kg joins respectively in the above-mentioned fused solution, mix 2 ~ 3 minutes, 110 ~ 115 ℃ of slurry temperatures, the slip that contains suspended solid becomes drop from highly being to fall 106 meters the prilling tower by Fitz chilsonator, conduct heat and mass transfer with upstream, cooling also is cured as 1 ~ 4 millimeter pellet, obtains the particulate state melt granulated polypeptide stable fertilizer.
Above-mentioned melt granulated polypeptide stable fertilizer total nutrient content 〉=40%, nitrogen (N) 26% wherein, Vanadium Pentoxide in FLAKES (P
2O
5) 6%, Repone K (K
2O) 8%.
Example 2:
Get urea plant flash evaporator outlet urea soln or melt 350 kg, concentration is greater than 99%, about 140 ℃ of temperature, add combination nitrification inhibitor 1.0 kg, combination urease inhibitor 0.8kg, content is 40.0% polypeptide synergistic agent 0.2 kg, mix, add again powdery monoammonium phosphate 195kg, Repone K 180 kg, filler 93kg, mix about 2 minutes, 110 ~ 120 ℃ of slurry temperatures, the slip that contains suspended solid becomes drop from highly being to fall 106 meters the prilling tower by Fitz chilsonator, conducts heat and mass transfer with upstream, cooling also is cured as 1 ~ 4 millimeter pellet, is the particulate state melt granulated polypeptide stable fertilizer.
Above-mentioned melt granulated polypeptide stable fertilizer total nutrient content 〉=40%, nitrogen (N) 22% wherein, Vanadium Pentoxide in FLAKES (P
2O
5) 8%, Repone K (K
2O) 10%.
The effect test example:
Tradition high tower compound fertilizer (26-6-8) total nutrient 40%, N-P-K content is respectively 26%, 6%, 8%, is produced by Stanley Fertilizer Co.,Ltd;
Tradition high tower compound fertilizer (22-8-10), total nutrient 40%, N-P-K content are respectively 22%, 8%, 10%, are produced by Stanley Fertilizer Co.,Ltd.
Land for growing field crops randomized block experiment design is adopted in test, establishes altogether 7 treatment group, is respectively as follows:
Blank group: do not apply fertilizer;
Tradition high tower compound fertilizer (26-6-8) group: use above-mentioned traditional high tower compound fertilizer (26-6-8);
Tradition high tower compound fertilizer (22-8-10) group: use above-mentioned traditional high tower compound fertilizer (22-8-10);
Melt granulated polypeptide stable fertilizer (26-6-8) group: the melt granulated polypeptide stable fertilizer of using the embodiment of the invention 1 preparation;
Melt granulated polypeptide stable fertilizer (22-8-10) group: the melt granulated polypeptide stable fertilizer of using the embodiment of the invention 2 preparations;
2/3 melt granulated polypeptide stable fertilizer (26-6-8) group: the melt granulated polypeptide stable fertilizer of using the embodiment of the invention 1 preparation;
2/3 melt granulated polypeptide stable fertilizer (22-8-10) group: the melt granulated polypeptide stable fertilizer of using the embodiment of the invention 2 preparations;
Except 2/3 melt granulated polypeptide stable fertilizer (26-6-8) group, 2/3 melt granulated polypeptide stable fertilizer (22-8-10) group rate of fertilizer application are 500 kg/ha, the rate of fertilizer application of other test group is 750 kg/ha.Each group repeats field planting density 60 000 strains/ha, line-spacing 0.67 m, every residential quarter 8 row, residential quarter area 33.3 m 5 times
2
Supplying examination soil is cinnamon soil, pH=7.3, alkali-hydrolyzable nitrogen 36.14 mg/kg, rapid available phosphorus 4.04 mg/kg, available potassium 78.21 mg/kg, organic 10.96 g/kg.
Kind for the examination corn is Zheng Dan 958.
Cui Cun carried out after test was selected in Linshu town, Linshu County, Shandong Province, and in sowing on May 14th, 2010, fertilizer is used together with corn seed at seeding time, and fertilization mode is for doing seed manure, and 2010-10-16 results plant sample is measured aquatic foods, dry weight and plant each several part total nitrogen content.The growing period timely and appropriate discovery waters to keep ground moistening, and spray an agricultural chemicals mid-term (2010-8-29, typhon mouth phase), to prevent the generation of insect pest.All want weeding every day in addition, avoid nutrient loss.
Corn yield and nitrogen utilization efficiency that table 1 different fertilizer is processed
As can be seen from Table 1, the utilization rate of nitrogen fertilizer of tradition high tower compound fertilizer (26-6-8) only is 31.87%, the tradition high tower compound fertilizer (22-8-10) be 36.60%, melt granulated polypeptide stable fertilizer then significantly improves utilization rate of nitrogen fertilizer, be 37.22% and 38.97%, improve respectively 5.53%, 4.37% than traditional high tower compound fertilizer (26-6-8), (22-8-10), even in the situation of rate of fertilizer application minimizing 1/3, utilization rate of nitrogen fertilizer still is 40.87%, 41.38%.With the increase of amount of application, the nitrogen utilization efficiency of melt granulated polypeptide stable fertilizer reduces always.The utilization ratio that reduces by 1/3 consumption melt granulated polypeptide stable fertilizer (22-8-10) is the highest, is 41.38%, improves 6.78% than traditional high tower compound fertilizer (22-8-10).The utilization ratio that reduces by 1/3 consumption melt granulated polypeptide stable fertilizer (26-6-8) is the highest, is 40.87%, improves 9% than traditional high tower compound fertilizer (26-6-8).
Melt granulated polypeptide stable fertilizer (26-6-8) is than blank volume increase 15%, than traditional high tower compound fertilizer (26-6-8) volume increase 2.1%, even in the situation that reduces by 1/3 rate of fertilizer application with traditional high tower compound fertilizer (26-6-8) without volume variance.Melt granulated polypeptide stable fertilizer (22-8-10) is than blank volume increase 15%, than traditional high tower compound fertilizer (22-8-10) volume increase 1.3%, even at the situation that reduces by 1/3 rate of fertilizer application and traditional high tower compound fertilizer (22-8-10) without volume variance.
Therefore, reducing melt granulated polypeptide stable fertilizer (26-6-8), (22-8-10) of 1/3 rate of fertilizer application, do not have significant difference with traditional high tower compound fertilizer output, is fertilizer product and the rate of fertilizer application that is worthy to be popularized.
Claims (2)
1. a melt granulated polypeptide stable fertilizer is characterized in that the feed composition weight part is as follows: 465 parts in urea, 150 parts of monoammonium phosphates, 133 parts of ammonium chlorides, 140 parts in Repone K, 0.8 part of combination urease inhibitor, 0.6 part of combination nitrification inhibitor, 0.2 part of polypeptide synergistic agent, 110.4 parts of talcum powder;
Above-mentioned raw materials is the commercially available prod, wherein:
The content 46.2% of nitrogen is mass percent in the described urea;
The content 11.0% of nitrogen in the described monoammonium phosphate, the content 44% of Vanadium Pentoxide in FLAKES is mass percent;
The content 24% of nitrogen is mass percent in the described ammonium chloride;
Potassium oxide content 61% in the described Repone K, is mass percent;
Described combination urease inhibitor is combined according to weight ratio 1:1:1 by N-normal-butyl thiophosphoryl triamine (C4H14N3PS, nBPT), quinhydrones (C6H6O2, HQ) and phenyl phosphoryl diamine (C6H9N2PO, PPD);
Described combination nitrification inhibitor is that a class is by Dyhard RU 100 (C
2H
4N
4, DCD), 3，5-dimethylpyrazole (C
5H
8N
2, DMP) combine according to weight ratio 1:1;
Described polypeptide synergistic agent belongs to bioabsorbable polymer material, be molecule amount 2000 ~ 5000 with the polymerization polypeptide amino acid of carboxylic acid side chain, be the polymkeric substance that the amino of aspartic acid monomer and carboxyl shrink and form.
2. the preparation method of melt granulated polypeptide stable fertilizer as claimed in claim 1 comprises following processing step:
1. in urea melting liquid, add combination urease inhibitor, combination nitrification inhibitor, polypeptide synergistic agent, stirring and evenly mixing, backward its adds monoammonium phosphate, Repone K, ammonium chloride and the talcum powder of process heating, and it is mixed with urea melting liquid;
2. under the temperature and mechanical agitation of melting mixing liquid self, be combined into rapidly the low temperature eutectic with certain fluidity energy, then adopt spray equipment to carry out sprinkling pelleting, when the spray tear drop falls to passing the airflow of rising in prilling tower, cooling curing forms particle;
3. then, further cool off again, sieve, measure, pack, namely get smooth in appearance, the mellow and full melt granulated polypeptide stable fertilizer product with Pinhole-shaped.
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Cited By (1)
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| WO2018162533A1 (en) | 2017-03-07 | 2018-09-13 | Yara International Asa | Improved urea-based composition and method for the manufacture thereof |
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| CN102807443B (en) * | 2012-08-29 | 2014-03-26 | 史丹利化肥股份有限公司 | High-efficiency all-nutritional corn special fertilizer prepared by granulation of tower-type melt and production method thereof |
| BR112016010982A8 (en) * | 2013-08-23 | 2023-03-07 | Koch Agronomic Services Llc | UREA AND NITROGEN STABILIZING COMPOSITIONS |
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| ES2946808T3 (en) * | 2015-11-12 | 2023-07-26 | Yara Int Asa | Composition of improved urea-based mixture and method for the manufacture thereof |
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| CN111960888A (en) * | 2020-08-25 | 2020-11-20 | 吉林宇源肥业科技有限公司 | Polypeptide compound fertilizer and preparation process thereof |
| EP4015491A1 (en) | 2020-12-21 | 2022-06-22 | Yara International ASA | Method for the manufacture of a urea-based composition comprising the addition of a liquid-free solid additive |
| EP4015492A1 (en) | 2020-12-21 | 2022-06-22 | Yara International ASA | Method for the manufacture of a urea-based composition comprising the addition of an additive in an aqueous form |
| CN116283440A (en) * | 2023-03-03 | 2023-06-23 | 新洋丰农业科技股份有限公司 | Organic stable fertilizer for rice and preparation method thereof |
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| CN101434504A (en) * | 2007-11-16 | 2009-05-20 | 中国科学院沈阳应用生态研究所 | Synergistic slow release nitrogen fertilizer and preparation thereof |
| CN102115351A (en) * | 2009-12-30 | 2011-07-06 | 中国科学院沈阳应用生态研究所 | Fertilizer taking maize straw abdomen-passing product as carrier, preparation method thereof and application thereof |
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| WO2018162533A1 (en) | 2017-03-07 | 2018-09-13 | Yara International Asa | Improved urea-based composition and method for the manufacture thereof |
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Address after: 276700 Linshu Economic Development Zone, Linyi, Shandong Patentee after: STANLEY agricultural group Limited by Share Ltd Address before: 276700 Linshu Economic Development Zone, Linyi, Shandong Patentee before: Stanley Fertilizer Stock Co., Ltd. |