CN111187110A - Clear liquid type urine-based particle water-soluble fertilizer and preparation method thereof - Google Patents
Clear liquid type urine-based particle water-soluble fertilizer and preparation method thereof Download PDFInfo
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- CN111187110A CN111187110A CN201911196354.7A CN201911196354A CN111187110A CN 111187110 A CN111187110 A CN 111187110A CN 201911196354 A CN201911196354 A CN 201911196354A CN 111187110 A CN111187110 A CN 111187110A
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- C05—FERTILISERS; MANUFACTURE THEREOF
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Abstract
The invention discloses a clear liquid type urine-based particle water-soluble fertilizer which comprises the following raw materials: industrial grade monoammonium phosphate, fully water-soluble potassium sulfate, monopotassium phosphate, ammonium sulfate, potassium chloride, urea, an auxiliary agent, magnesium sulfate, zinc sulfate, manganese sulfate, boric acid and a water-soluble anti-caking agent. The invention also discloses a preparation method of the clear liquid type urea-based particle water-soluble fertilizer. The clear liquid type urine-based particle water soluble fertilizer disclosed by the invention has the advantages of cheap and easily available raw materials, simple process, obvious effect, difficulty in caking and pulverization of products, easiness in storage and transportation and good market prospect.
Description
Technical Field
The invention relates to the field of agricultural fertilizer manufacturing, in particular to a clear liquid type urine-based particle water-soluble fertilizer and a preparation method thereof.
Background
In recent decades, the phenomena of water and fertilizer resource consumption and waste in agricultural production in China are serious, the problem of water and fertilizer resource shortage is more and more prominent along with the agricultural development in China, and water and fertilizer conservation are necessary requirements for developing characteristic sustainable agriculture. The water-soluble fertilizer is identical with the modern agriculture concepts of energy conservation, environmental protection, ecological efficiency and the like at present, and is an effective carrier for rapidly converting the traditional agriculture to the modern agriculture. A large amount of water-soluble fertilizer products appear in the market at present, the product quality is uneven, especially, the granular water-soluble fertilizer products are high in price, or flocculation and precipitation phenomena appear in the actual use process, irrigation equipment is easy to block, nutrient elements are easy to lose, the use cost of farmers is increased, and soil hardening can also be caused.
Therefore, the market urgently needs to develop a low-cost and high-efficiency clear liquid type urine-based particle water-soluble fertilizer which can comprehensively provide nutrients required by crop growth and prevent irrigation equipment from being blocked.
Disclosure of Invention
The invention mainly aims to provide a production method of a clear liquid type urine-based particle water soluble fertilizer, the raw materials used in the invention are cheap and easy to obtain, the obtained product is rich and balanced in nutrition, the content of insoluble substances in water is effectively reduced, the utilization rate of the fertilizer is improved, meanwhile, the blockage of drip irrigation equipment can be effectively avoided, the service life of the drip irrigation equipment is prolonged, and the fertilizer is particularly suitable for being applied to areas with higher water hardness for irrigation, karst landform areas or alkaline soil. .
A clear liquid type urine-based particle water-soluble fertilizer comprises the following raw materials: industrial grade monoammonium phosphate, fully water-soluble potassium sulfate, monopotassium phosphate, ammonium sulfate, potassium chloride, urea, an auxiliary agent, magnesium sulfate, zinc sulfate, manganese sulfate, boric acid and a water-soluble anti-caking agent.
The high-potassium formula fertilizer of the clear liquid type urine-based granular water soluble fertilizer comprises the following raw materials in parts by weight:
3-12 parts of industrial monoammonium phosphate
40-70 parts of full water-soluble potassium sulfate
3-15 parts of monopotassium phosphate
2-8 parts of ammonium sulfate
3-10 parts of potassium chloride
35-60 parts of urea
Magnesium sulfate 0.5-2 parts
0.2 to 1 portion of boric acid
0.2 to 1 portion of zinc sulfate
0.2-1 part of manganese sulfate
3-10 parts of auxiliary agent
0.2 to 0.8 portion of water-soluble anti-caking agent.
The balance formula of the clear liquid type urine-based particle water-soluble fertilizer comprises the following raw materials in parts by weight:
20-35 parts of industrial monoammonium phosphate
25-45 parts of full water-soluble potassium sulfate
2-8 parts of potassium chloride
5-15 parts of monopotassium phosphate
1-8 parts of ammonium sulfate
35-60 parts of urea
Magnesium sulfate 0.5-2 parts
0.2 to 1 portion of boric acid
0.2 to 1 portion of zinc sulfate
0.2-1 part of manganese sulfate
3-20 parts of auxiliary agent
0.5-1.5 parts of water-soluble anti-caking agent.
The auxiliary agent is one or more of urea phosphate, solid sulfuric acid, citric acid, urea sulfate and concentrated phosphoric acid.
A preparation method of a clear liquid type urea-based particle water-soluble fertilizer adopts a high tower granulation method, and comprises the following steps:
s1, preparing materials according to the formula;
s2, conveying the urea, ammonium sulfate and potassium chloride to a urea melting tank through a bucket elevator and a scraper conveyor after metering, and heating and melting the urea, the ammonium sulfate and the potassium chloride by a steam coil pipe arranged in the melting tank at the temperature of 120-; materials in the melting tank overflow to a first-stage mixing tank, the boric acid, the zinc sulfate and the manganese sulfate which are mixed in proportion are metered and sent to the first-stage mixing tank, part of the fully water-soluble potassium sulfate is metered and sent to the first-stage mixing tank, and the temperature of the first-stage mixing tank is 105-; uniformly mixing the materials in the primary mixing tank, then overflowing the materials to a secondary mixing tank, simultaneously, metering the rest part of the fully water-soluble potassium sulfate, industrial ammonium phosphate, monopotassium phosphate, magnesium sulfate and the auxiliary agent, and conveying the materials to the secondary mixing tank, wherein the temperature of the secondary mixing tank is 95-105 ℃;
and S3, allowing the uniformly stirred slurry to flow out of the secondary mixing tank, passing through an emulsifier, granulating, cooling, screening, adding a water-soluble anti-caking agent, and packaging to obtain a finished product.
A preparation method of a clear liquid type urea-based particle water soluble fertilizer uses a rotary drum granulation method in a granulation method, and comprises the following steps:
t1, after the measured ammonia gas and sulfuric acid are subjected to neutralization reaction in a tubular reactor to prepare ammonium sulfate, the ammonium sulfate enters a rotary drum granulator and is sprayed into the rotary drum granulator through a spray gun;
t2, weighing the residual materials according to the proportion, uniformly mixing, and conveying to a rotary drum granulator, wherein the residual materials are bonded into fertilizer particles under the continuous rolling and steam introducing actions of the rotary drum granulator;
t3, drying, cooling, screening, adding water-soluble anti-caking agent, and packaging to obtain the final product.
The macroelement water soluble fertilizer is a clear liquid type urine-based particle water soluble fertilizer containing macroelements and medium and trace elements, the fertilizer has the advantages of cheap and easily-obtained raw materials, high nutrient utilization rate, drip irrigation, foliage spraying and flushing, is particularly suitable for water resource shortage areas and saline-alkali regions, does not generate flocculation and precipitation phenomena when superhard irrigation water with high metal ion content such as calcium, magnesium and the like is used, has low water insoluble substance content, can effectively avoid the blockage of drip irrigation equipment, and prolongs the service life of the drip irrigation equipment.
The auxiliary agent is used as a pH value regulator of the fertilizer and an inorganic polyvalent metal ion solubilizer, so that the pH value of the finished fertilizer is in a slightly acidic range, the solubility of inorganic metal ions in water is increased, the activity of nutrient elements such as calcium, magnesium, zinc, manganese and the like in soil is enhanced, flocculation precipitation formed by polyvalent metal ions and anion groups mainly comprising phosphate radicals is avoided, the absorption of crops on the fertilizer is improved, the loss of the nutrient elements is reduced, and the physical and chemical properties and the soil structure of the soil are improved.
The clear liquid type urine-based particle water soluble fertilizer disclosed by the invention has the advantages of cheap and easily available raw materials, simple process, obvious effect, difficulty in caking and pulverization of products, easiness in storage and transportation and good market prospect.
Detailed Description
The present invention will be further illustrated with reference to the following examples.
< example 1>
A clear liquid type urea-based particle water soluble fertilizer is prepared by a granulation mode of high tower granulation, and the formula comprises the following components in parts by weight: 46 parts of urea, 55 parts of full-water-soluble potassium sulfate, 5.2 parts of potassium chloride, 8 parts of monopotassium phosphate, 6 parts of industrial-grade crystal ammonium phosphate, 5 parts of urea sulfate, 3.5 parts of ammonium sulfate, 1.2 parts of magnesium sulfate, 0.8 part of zinc sulfate, 0.8 part of manganese sulfate, 0.6 part of boric acid and 0.7 part of water-soluble anti-caking agent.
After being measured, the urea, the ammonium sulfate and the potassium chloride are transported to a urea melting tank through a bucket elevator and a scraper conveyor, and are heated and melted by a steam coil arranged in the melting tank at the temperature of 120-130 ℃. The materials in the melting tank overflow to a first-stage mixing tank, the mixed boric acid, zinc sulfate and manganese sulfate are metered and sent to the first-stage mixing tank, part of the fully water-soluble potassium sulfate is metered and sent to the first-stage mixing tank, and the temperature of the first-stage mixing tank is 105-. And uniformly mixing the materials in the primary mixing tank, then overflowing the materials to a secondary mixing tank, simultaneously metering the rest part of the fully water-soluble potassium sulfate, the industrial ammonium phosphate, the monopotassium phosphate, the magnesium sulfate and the auxiliary agent, and conveying the materials to the secondary mixing tank, wherein the temperature of the secondary mixing tank is 95-105 ℃. And (3) the uniformly stirred slurry flows out of the second-stage mixing tank, passes through an emulsifier, is sprayed to a belt below the tower by a differential granulator, and is cooled, screened, added with a water-soluble anti-caking agent and packaged to obtain the clear liquid type urea-based granular water-soluble fertilizer. Through testing, the fertilizer contains N: 18.06%, P2O5：5.82%，K2O: 28.41%, total nutrients: 52.29%, water insoluble: < 0.01%, pH: 4.21 and the fertilizer strength is 54.2N. After being dissolved in water with the hardness of more than 800 ℃ according to a certain proportion, the water solution is clear without flocculation and precipitation. The fertilizer is piled up 20 layers in height, and no pulverization and no caking are generated within 6 months.
< example 2>
A clear liquid type urea-based particle water soluble fertilizer is prepared by a granulation mode of high tower granulation, and the formula comprises the following components in parts by weight: 47 parts of urea, 32 parts of fully water-soluble potassium sulfate, 5.1 parts of potassium chloride, 8.3 parts of monopotassium phosphate, 26 parts of industrial grade crystal ammonium phosphate, 6.5 parts of urea phosphate, 1.2 parts of magnesium sulfate, 0.8 part of manganese sulfate, 0.8 part of zinc sulfate, 0.6 part of boric acid and 0.7 part of water-soluble anti-caking agent.
After being measured, the urea, the ammonium sulfate and the potassium chloride are transported to a urea melting tank through a bucket elevator and a scraper conveyor, and are heated and melted by a steam coil arranged in the melting tank at the temperature of 120-130 ℃. The materials in the melting tank overflow to a first-stage mixing tank, the mixed boric acid, zinc sulfate and manganese sulfate are metered and sent to the first-stage mixing tank, part of the fully water-soluble potassium sulfate is metered and sent to the first-stage mixing tank, and the temperature of the first-stage mixing tank is 105-. And uniformly mixing the materials in the primary mixing tank, then overflowing the materials to a secondary mixing tank, simultaneously metering the rest part of the fully water-soluble potassium sulfate, the industrial ammonium phosphate, the monopotassium phosphate, the magnesium sulfate and the auxiliary agent, and conveying the materials to the secondary mixing tank, wherein the temperature of the secondary mixing tank is 95-105 ℃. And (3) the uniformly stirred slurry flows out of the second-stage mixing tank, passes through an emulsifier, is sprayed to a belt below the tower by a differential granulator, and is cooled, screened, added with a water-soluble anti-caking agent and packaged to obtain the clear liquid type urea-based granular water-soluble fertilizer. Through testing, the fertilizer contains N: 20.95%, P2O5：17.94%，K2O: 18.22%, total nutrients: 57.11%, water insoluble: < 0.01%, pH: 4.51 and the fertilizer strength is 43.2N. After being dissolved in water with the hardness of more than 800 ℃ according to a certain proportion, the water solution is clear without flocculation and precipitation. The fertilizer is piled up 20 layers in height, and no pulverization and no caking are generated within 6 months.
< example 3>
A clear liquid type urine-based particle water soluble fertilizer adopts a drum granulation production process in a granulation method, and comprises the following components in parts by weight: 26 parts of urea, 52 parts of full-water-soluble potassium sulfate, 5.0 parts of potassium chloride, 25 parts of powdery industrial ammonium phosphate, 3.5 parts of urea phosphate, 5.0 parts of ammonium sulfate, 1.3 parts of magnesium sulfate, 0.9 part of manganese sulfate, 0.7 part of zinc sulfate, 0.7 part of boric acid and 0.8 part of water-soluble anti-caking agent.
The measured ammonia gas and sulfuric acid are neutralized in a tubular reactor to obtain ammonium sulfate, the ammonium sulfate enters a rotary drum granulator and is sprayed into the rotary drum granulator through a spray gun, and other powdery materials are measured according to a ratio, uniformly mixed and conveyed to a rotary drum to be manufacturedIn the granulator, all the powdery materials are bonded into granules under the action of continuous rolling and steam introduction of a rotary drum granulator. And drying, cooling, screening, adding a water-soluble anti-caking agent and packaging the fertilizer granules from the rotary drum granulator to obtain the clear liquid type urea-based granular water-soluble fertilizer. Through testing, the fertilizer contains N: 16.02%, P2O5：10.11%，K2O: 25.36%, total nutrients: 51.49%, water insoluble: < 0.01%, pH: 4.36, the fertilizer strength is 35.2N, and after the fertilizer is dissolved in water with the hardness of more than 800 ℃ according to a certain proportion, the water solution is clear without flocculation and precipitation. The fertilizer is piled up 20 layers in height, and no pulverization and no caking are generated within 6 months.
Claims (6)
1. The clear liquid type urine-based particle water-soluble fertilizer is characterized by comprising the following raw materials: industrial grade monoammonium phosphate, fully water-soluble potassium sulfate, monopotassium phosphate, ammonium sulfate, potassium chloride, urea, an auxiliary agent, magnesium sulfate, zinc sulfate, manganese sulfate, boric acid and a water-soluble anti-caking agent.
2. The clean-liquid type urea-based particle water-soluble fertilizer as claimed in claim 1, wherein the high-potassium type formula fertilizer of the clean-liquid type urea-based particle water-soluble fertilizer is prepared from the following raw materials in parts by weight:
3-12 parts of industrial monoammonium phosphate
40-70 parts of full water-soluble potassium sulfate
3-15 parts of monopotassium phosphate
2-8 parts of ammonium sulfate
3-10 parts of potassium chloride
35-60 parts of urea
Magnesium sulfate 0.5-2 parts
0.2 to 1 portion of boric acid
0.2 to 1 portion of zinc sulfate
0.2-1 part of manganese sulfate
3-10 parts of auxiliary agent
0.2 to 0.8 portion of water-soluble anti-caking agent.
3. The clean-liquid urea-based particle water-soluble fertilizer as claimed in claim 1, wherein the balanced formula of the clean-liquid urea-based particle water-soluble fertilizer comprises the following raw materials in parts by weight:
20-35 parts of industrial monoammonium phosphate
25-45 parts of full water-soluble potassium sulfate
2-8 parts of potassium chloride
5-15 parts of monopotassium phosphate
1-8 parts of ammonium sulfate
35-60 parts of urea
Magnesium sulfate 0.5-2 parts
0.2 to 1 portion of boric acid
0.2 to 1 portion of zinc sulfate
0.2-1 part of manganese sulfate
3-20 parts of auxiliary agent
0.5-1.5 parts of water-soluble anti-caking agent.
4. The clean liquid type urea-based particle water-soluble fertilizer as claimed in claim 1, wherein the auxiliary agent is one or more of urea phosphate, solid sulfuric acid, citric acid, urea sulfate and concentrated phosphoric acid.
5. A method for preparing a clear liquid type urea-based particle water-soluble fertilizer according to any one of claims 1 to 3, which is characterized by using a high tower granulation method, comprising the following steps:
s1, preparing materials according to the formula;
s2, conveying the urea, ammonium sulfate and potassium chloride to a urea melting tank through a bucket elevator and a scraper conveyor after metering, and heating and melting the urea, the ammonium sulfate and the potassium chloride by a steam coil pipe arranged in the melting tank at the temperature of 120-; materials in the melting tank overflow to a first-stage mixing tank, the boric acid, the zinc sulfate and the manganese sulfate which are mixed in proportion are metered and sent to the first-stage mixing tank, part of the fully water-soluble potassium sulfate is metered and sent to the first-stage mixing tank, and the temperature of the first-stage mixing tank is 105-; uniformly mixing the materials in the primary mixing tank, then overflowing the materials to a secondary mixing tank, simultaneously, metering the rest part of the fully water-soluble potassium sulfate, industrial ammonium phosphate, monopotassium phosphate, magnesium sulfate and the auxiliary agent, and conveying the materials to the secondary mixing tank, wherein the temperature of the secondary mixing tank is 95-105 ℃;
and S3, allowing the uniformly stirred slurry to flow out of the secondary mixing tank, passing through an emulsifier, granulating, cooling, screening, adding a water-soluble anti-caking agent, and packaging to obtain a finished product.
6. A method for preparing a clear liquid type urea-based particle water-soluble fertilizer as claimed in any one of claims 1-3, wherein a drum granulation method in a granulation method is used, comprising the following steps:
t1, after the measured ammonia gas and sulfuric acid are subjected to neutralization reaction in a tubular reactor to prepare ammonium sulfate, the ammonium sulfate enters a rotary drum granulator and is sprayed into the rotary drum granulator through a spray gun;
t2, weighing the residual materials according to the proportion, uniformly mixing, and conveying to a rotary drum granulator, wherein the residual materials are bonded into fertilizer particles under the continuous rolling and steam introducing actions of the rotary drum granulator;
t3, drying, cooling, screening, adding water-soluble anti-caking agent, and packaging to obtain the final product.
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Cited By (5)
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| CN112142522A (en) * | 2020-10-27 | 2020-12-29 | 青海云天化国际化肥有限公司 | High-tower full-water-soluble compound fertilizer and preparation method thereof |
| CN112266299A (en) * | 2020-11-20 | 2021-01-26 | 安阳中盛肥业科技有限责任公司 | Formula for producing high-potassium fulvic acid potassium and preparation method thereof |
| CN112279725A (en) * | 2020-11-26 | 2021-01-29 | 新洋丰农业科技股份有限公司 | Full-water-soluble nitro-particle water-soluble fertilizer and preparation method thereof |
| CN112409090A (en) * | 2020-11-24 | 2021-02-26 | 重庆九禾测土配肥有限责任公司 | Full-water-soluble medium-nitrogen low-phosphorus high-potassium urea-sulfur-based compound fertilizer containing organic matters and preparation method thereof |
| CN115745697A (en) * | 2022-08-05 | 2023-03-07 | 安徽辉隆集团五禾生态肥业有限公司 | Humic acid type urea-based compound fertilizer and processing technology and equipment thereof |
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Application publication date: 20200522 |