CN102030592B - Tower-granulated low-nitrogen high-phosphorus urine sulfur radical compound fertilizer and preparation method thereof - Google Patents
Tower-granulated low-nitrogen high-phosphorus urine sulfur radical compound fertilizer and preparation method thereof Download PDFInfo
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- CN102030592B CN102030592B CN 201010538524 CN201010538524A CN102030592B CN 102030592 B CN102030592 B CN 102030592B CN 201010538524 CN201010538524 CN 201010538524 CN 201010538524 A CN201010538524 A CN 201010538524A CN 102030592 B CN102030592 B CN 102030592B
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Abstract
The invention discloses a tower-granulated low-nitrogen high-phosphorus urine sulfur radical compound fertilizer and a preparation method thereof, belonging to a fertilizer mixture. The compound fertilizer is characterized by being prepared from the following raw materials in parts by mass: 34-35 parts of urea, 32-33 parts of monoammonium phosphate, 32-33 parts of potassium sulfate and 1-1.5 parts of viscosity reducer, wherein the viscosity reducer is modified lignosulfonate. The invention provides a tower-granulated low-nitrogen high-phosphorus urine sulfur radical compound fertilizer which can meet the nutrition requirements on nitrogen, phosphorus, potassium and sulfur for crop growth and ensures that the product particles are uniform, smooth, mellow and full, small contraction cavities are formed, natural anti-counterfeiting function is realized, caking of the product is prevented, the compressive strength is relatively high and mechanical fertilizing is convenient to carry out; moreover, the invention also provides a preparation method which has advantages of high technical adaptability, high compatibility, energy conservation, small investment and relatively low production cost. The compound fertilizer disclosed by the invention is applicable to various crops such as rice, cotton, corn, peanut, soybean, wheat, rape and the like as well as medium and high-grade cash crops such as vegetable, fruit trees, forest trees, flowers, tea and the like. The content of N is less than 20% by weight, and the content of P2O5 is more than or equal to 15% by weight.
Description
Technical field
The present invention is the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of a kind of high tower prilling and manufacture method thereof, belongs to fertiliser mixtures.
Background technology
Compound fertilizer production with tower granulation technique, although solved the not high difficult problem of the fertile nitrogen content of traditional compound (closing),, for the manufacture of low nitrogen, high phosphorus particulate product, but produced new technical problem.
At present, high-tower granulation urea sulfenyl composite fertilizer belongs to high nitrogen, low-phosphorous series mostly, in the composition, and N 〉=20%, phosphorus P
2O
5≤ 12%.Reason is to hang down nitrogen, high phosphorus series molten slurry viscosity is higher, and poor fluidity is easy to blocking pipe, shower nozzle, being forced to frequent the parking and changing, and causes driving rate low, reduced the throughput of prilling granulator, and quality product is also very unstable.
Field crop jointing period, generally about 15%, some crops and cash crop special demands hanged down the urine sulfenyl composite fertilizer of nitrogen, high phosphorus for the requirement of phosphorus.The high nitrogen that existing market provides, low-phosphorous high-tower granulation urea sulfenyl composite fertilizer are difficult to satisfy the demand of crop growth.
Summary of the invention
The object of the invention is to avoid above-mentioned weak point of the prior art, can satisfy crop growth for the nutritional needs of nitrogen, phosphorus, potassium, sulphur and provide a kind of, product particle even, smooth mellow and full, little shrinkage cavity, naturally false proof arranged, product does not lump, ultimate compression strength is higher, is convenient to the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of high tower prilling of mechanized application.
The present invention also aims to provide a kind of Technological adaptability strong, compatible good, save energy, the preparation method of the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of high tower prilling that less investment and production cost are lower.
Purpose of the present invention can reach by following measure:
High tower prilling of the present invention hangs down nitrogen high-phosphorus urine sulfenyl composite fertilizer, it is characterized in that being made by the raw material of following mass fraction:
Urea 34～35
Monoammonium phosphate 32～33
Vitriolate of tartar 32～33
Viscosity-depression agent 1～1.5
Wherein said viscosity-depression agent is modified lignin mahogany sulfonate.
High tower prilling of the present invention hangs down nitrogen high-phosphorus urine sulfenyl composite fertilizer, and described viscosity-depression agent is vinylformic acid and 2-acrylamide-2-methylpro panesulfonic acid, dimethyldiallylammonchloride chloride monomer and calcium lignin sulphonate graft copolymer.
High tower prilling of the present invention hangs down nitrogen high-phosphorus urine sulfenyl composite fertilizer, and described viscosity-depression agent is MODIFIED LIGNOSULPHONATE.
High tower prilling of the present invention hangs down nitrogen high-phosphorus urine sulfenyl composite fertilizer, described viscosity-depression agent be prepare papermaking product with sulphite process pulping waste liquor after filtration, concentrated, the polycomponent high molecular polymer that contains sulfonated lignin that drying forms, molecular weight is between 800～10000.
Viscosity-depression agent-modified lignin mahogany sulfonate in the feed composition of the present invention is a kind of nontoxic, free of contamination calcium lignin sulphonate graft copolymer.Calcium lignin sulphonate (being called for short wooden calcium) be prepare papermaking product with sulphite process pulping waste liquor after filtration, concentrated, a kind of polycomponent high molecular polymer anion surfactant that drying forms, outward appearance is the brown color powder mass, aromatic odour slightly, molecular weight is generally between 800～10000, have very strong dispersiveness, cohesiveness, chelating, fertilizer there are absorption and dissemination, the flowability of fertilizer slurry can be improved, and soil, biodegradable, contaminated soil not can be improved.Therefore, feed composition of the present invention adopts MODIFIED LIGNOSULPHONATE as viscosity-depression agent, has made positive contribution for finishing task of the present invention.The modified lignin mahogany sulfonate that the present invention adopts is produced by Jiangyin anti-caking agent chemical industry company limited and sells, and trade names are JN-1.
High tower prilling of the present invention hangs down nitrogen high-phosphorus urine sulfenyl composite fertilizer, it is characterized in that being made by the raw material of following mass fraction:
Urea 34
Monoammonium phosphate 32.5
Vitriolate of tartar 32
Viscosity-depression agent 1.5.
It is a preferred technical scheme.
High tower prilling of the present invention hangs down nitrogen high-phosphorus urine sulfenyl composite fertilizer, it is characterized in that being made by the raw material of following mass fraction:
Urea 35
Monoammonium phosphate 32
Vitriolate of tartar 32
Viscosity-depression agent 1.0.
It is another preferred technical scheme.
The below provides the manufacture method of the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of a high tower prilling of the present invention, it is characterized in that comprising the steps:
A. slurrying
A. urea melting, measure, feed intake
Pour granular urea into the urea rotary conveyor, through chapelet, rise to the urea feed bin, enter the urea melting device through worm conveyor, flow into the urine dashpot behind the urea melting, be transported to cat head one-level tempering tank through urine pump, mass flowmeter, the urea liquation that enters the one-level tempering tank is 34～35 weight parts;
B. other raw materials measure, feed intake
Monoammonium phosphate, vitriolate of tartar are poured respectively rotary conveyor into, be promoted to separately feed bin through chapelet, bin bottom is established the electronic measurement weighing belt, measure respectively monoammonium phosphate 32～33 weight parts, vitriolate of tartar 32～33 weight parts go the powder heater heats, material after the heating flow into the powder conveyor, be sent to the cat head feed bin through bucket elevator, after the metering of cat head measuring belt scale, send into again the cat head one-level tempering tank of pulping process.Simultaneously, viscosity-depression agent 1～1.5 weight part is added the one-level tempering tank through variable-frequency speed regulation spiral conveyer, and pass in right amount a small amount of superheated vapour, after carrying out abundant mix and blend, flow into the secondary tempering tank, carry out again emulsification pretreatment, thus the good slip of preparation flowing property.
B. granulation
With the good slip of flowing property described in the steps A b, adopt optimization shower nozzle tablets press to spray in the prilling tower, naturally cooling, curing, screening, coating namely make high tower urine sulfenyl composite fertilizer.
The low nitrogen high-phosphorus urine sulfenyl composite fertilizer of high tower prilling of the present invention and the disclosed technical scheme of manufacture method thereof have following positively effect compared to existing technology:
1. provide a kind of and can satisfy crop growth for the nutritional needs of nitrogen, phosphorus, potassium, sulphur, product particle even, smooth mellow and full, little shrinkage cavity, naturally false proof arranged, product does not lump, and ultimate compression strength is higher, is convenient to the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of high tower prilling of mechanized application.
2. provide a kind of Technological adaptability strong, compatible good, save energy, the low nitrogen high-phosphorus urine sulfenyl composite fertilizer preparation method of the high tower prilling that less investment and production cost are lower.
3. high tower prilling of the present invention hangs down nitrogen high-phosphorus urine sulfenyl composite fertilizer preparation method, can improve the zero pour of melting liquid, make product particle smooth, mellow and full, the similar Norway of outward appearance grey import fertilizer, uniform particles, smooth mellow and full, little shrinkage cavity, naturally false proof arranged, product does not lump, ultimate compression strength is higher, is convenient to mechanized application.
4. high tower prilling of the present invention hangs down nitrogen high-phosphorus urine sulfenyl Chemical Mixed Fertilizer, and dissolution rate is moderate, can satisfy crop to the nutritional needs of nitrogen, phosphorus, potassium, sulphur, promotes well developed root system and plant strain growth, improves crop yield and quality, improves the soil and fertilizer utilization ratio.The various crop such as paddy rice, cotton, corn, peanut, soybean, wheat, rape both be applicable to; Be applicable to again the medium-to-high grade cash crop such as vegetables, fruit tree, Lin Shu, flowers, tealeaves.
5. the content of the nitrogen element of the low nitrogen high-phosphorus urine sulfenyl Chemical Mixed Fertilizer of high tower prilling of the present invention and the content of phosphoric reach respectively following index: N＜20wt%, P
2O
5〉=15wt%.
Description of drawings
Fig. 1 is the low nitrogen high-phosphorus urine sulfenyl composite fertilizer preparation method technical process block diagram of high tower prilling of the present invention
Embodiment
The present invention is described in further detail below in conjunction with embodiment:
Embodiment 1
Prepare the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of high tower prilling of the present invention according to the following step
A. slurrying
A. urea melting, measure, feed intake
Pour granular urea into the urea rotary conveyor, through chapelet, rise to the urea feed bin, enter the urea melting device through worm conveyor, flow into the urine dashpot behind the urea melting, be transported to cat head one-level tempering tank through urine pump, mass flowmeter, the urea liquation that enters the one-level tempering tank is 35 weight parts;
B. other raw materials measure, feed intake
Monoammonium phosphate, vitriolate of tartar are poured respectively rotary conveyor into, be promoted to separately feed bin through chapelet, bin bottom is established the electronic measurement weighing belt, measure respectively monoammonium phosphate 32.3 weight parts, vitriolate of tartar 32.8 weight parts go the powder heater heats, material after the heating flow into the powder conveyor, be sent to the cat head feed bin through bucket elevator, after the metering of cat head measuring belt scale, send into again the cat head one-level tempering tank of pulping process.Simultaneously, viscosity-depression agent 1.2 weight parts are added the one-level tempering tank through variable-frequency speed regulation spiral conveyer, and pass in right amount a small amount of superheated vapour, carry out abundant mix and blend after, flow into the secondary tempering tank, carry out again emulsification pretreatment, thereby the good slip of preparation flowing property.
B. granulation
With the good slip of flowing property described in the steps A b, adopt optimization shower nozzle tablets press to spray in the prilling tower, naturally cooling, curing, screening, coating namely make high tower urine sulfenyl composite fertilizer.
Embodiment 2～embodiment 7
According to method and the step of embodiment 1, prepare the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of high tower prilling of the present invention according to the composition of raw materials of table 1
Table 1
| Material name | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 |
| Urea | 34 | 35 | 34.5 | 34 | 34 | 34 |
| Monoammonium phosphate | 32.5 | 32 | 32 | 32 | 33 | 32 |
| Vitriolate of tartar | 32 | 32 | 32 | 32.5 | 32 | 33 |
| Viscosity-depression agent | 1.5 | 1 | 1.5 | 1.5 | 1 | 1 |
Claims (3)
1. a high tower prilling hangs down nitrogen high-phosphorus urine sulfenyl composite fertilizer, it is characterized in that being made by the raw material of following mass fraction:
Wherein said viscosity-depression agent is vinylformic acid and 2-acrylamide-2-methylpro panesulfonic acid, dimethyldiallylammonchloride chloride monomer and calcium lignin sulphonate graft copolymer;
Its preparation method comprises the steps:
A. slurrying
A. urea melting, measure, feed intake
Pour granular urea into the urea rotary conveyor, through chapelet, rise to the urea feed bin, enter the urea melting device through worm conveyor, flow into the urine dashpot behind the urea melting, be transported to cat head one-level tempering tank through urine pump, mass flowmeter, the urea liquation that enters the one-level tempering tank is 34～35 weight parts;
B. other raw materials measure, feed intake
Monoammonium phosphate, vitriolate of tartar is poured respectively rotary conveyor into, be promoted to separately feed bin through chapelet, bin bottom is established the electronic measurement weighing belt, measure respectively monoammonium phosphate 32～33 weight parts, vitriolate of tartar 32～33 weight parts go the powder heater heats, material after the heating flow into the powder conveyor, be sent to the cat head feed bin through bucket elevator, after the metering of cat head measuring belt scale, send into again the cat head one-level tempering tank of pulping process, simultaneously, viscosity-depression agent 1～1.5 weight part is added the one-level tempering tank through variable-frequency speed regulation spiral conveyer, and pass in right amount a small amount of superheated vapour, after carrying out abundant mix and blend, flow into the secondary tempering tank, carry out again emulsification pretreatment, thus the good slip of preparation flowing property;
B. granulation
With the good slip of step b flowing property, adopt optimization shower nozzle tablets press to spray in the prilling tower, naturally cooling, curing, screening, coating namely make high tower urine sulfenyl composite fertilizer.
2. according to claim 1 the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of high tower prilling is characterized in that being made by the raw material of following mass fraction:
3. according to claim 1 the low nitrogen high-phosphorus urine sulfenyl composite fertilizer of high tower prilling is characterized in that being made by the raw material of following mass fraction:
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| CN 201010538524 CN102030592B (en) | 2010-11-10 | 2010-11-10 | Tower-granulated low-nitrogen high-phosphorus urine sulfur radical compound fertilizer and preparation method thereof |
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| CN 201010538524 CN102030592B (en) | 2010-11-10 | 2010-11-10 | Tower-granulated low-nitrogen high-phosphorus urine sulfur radical compound fertilizer and preparation method thereof |
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| CN102030592B true CN102030592B (en) | 2013-01-30 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102584395B (en) * | 2012-02-15 | 2013-11-13 | 瓮福（集团）有限责任公司 | Method for producing urea-based compound fertilizer by high tower granulation |
| CN102731198A (en) * | 2012-05-28 | 2012-10-17 | 徐州市芭田生态有限公司 | Method for producing organic-inorganic compound fertilizer by using high tower melting granulation process |
| CN102786366B (en) * | 2012-07-26 | 2015-05-13 | 徐州市芭田生态有限公司 | Endoplasmic slow release composite fertilizer and its preparation method |
| CN103964919A (en) * | 2014-04-29 | 2014-08-06 | 安徽金帝豪肥业有限公司 | Special corn nitro-sulfur-based compound fertilizer and preparation method thereof |
| CN104030766B (en) * | 2014-07-01 | 2016-01-20 | 广西力源宝科技有限公司 | Molasses alcohol fermentation liquid is used for the method for polynary formula fertilizer tower granulation |
| CN105237080A (en) * | 2015-10-17 | 2016-01-13 | 安徽中元化肥股份有限公司 | Production method of water-soluble compound fertilizer |
| CN108002910A (en) * | 2017-12-18 | 2018-05-08 | 深圳市芭田生态工程股份有限公司 | Reduce the method and fertilizer of compound fertilizer from caking and dusting |
| CN110128209B (en) * | 2019-06-05 | 2024-05-24 | 江西心连心化学工业有限公司 | High-tower compound fertilizer production device and production process |
| CN110577435A (en) * | 2019-08-28 | 2019-12-17 | 广东瑞丰生态环境科技股份有限公司 | high tower compound fertilizer containing lignin and calcium lignosulfonate and preparation method thereof |
| CN110668875B (en) * | 2019-11-04 | 2022-05-17 | 山西华鑫肥业股份有限公司 | Production method of high-sulfur full-water-soluble nitro-sulfur-based nitrogen fertilizer particles |
| CN113816790A (en) * | 2021-09-18 | 2021-12-21 | 阿克苏嘉邦肥业有限公司 | Preparation method and application of high-tower urea-based compound fertilizer viscosity reducer |
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2010
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