CN1448374A - Tower nitro compound fertilizer - Google Patents
Tower nitro compound fertilizer Download PDFInfo
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- CN1448374A CN1448374A CN 03117288 CN03117288A CN1448374A CN 1448374 A CN1448374 A CN 1448374A CN 03117288 CN03117288 CN 03117288 CN 03117288 A CN03117288 A CN 03117288A CN 1448374 A CN1448374 A CN 1448374A
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Abstract
The production of granulated nitro composite fertilizer uses the material including liquid ammonium nitrate, composite phosphate-potash fertilizer and additives. The production process includes the following steps: evaporating liquid material, preheating solid material, compounding the materials, granulating and packing the product. During the production, molten ammonium nitrate is utilized directly, composite fertilizer material and additives are added and available ammonium nitrate producing apparatus is used in the granulation.
Description
Technical field
The present invention relates to composite fertilizer producing process, relate to a kind of production method of particle nitro-compound fertilizer specifically.
Background technology
At present, the ammonium nitrate that the agricultural ammonium nitrate production method is produced is that total nitrogen content is 34.6% single nitrogenous fertilizer, and fertile kind is single, and particle is little, and intensity difference easily lumps, and has explosion hazard, is used to illegal explosive production easily.
Summary of the invention
The object of the present invention is to provide a kind of total nutrient＞35%, the production method that contains the particle nitro-compound fertilizer of phosphorus or potassium, the particle nitro-compound fertilizer of being produced contains elements such as the required nitric nitrogen of farm crop, ammonia-state nitrogen, phosphorus, potassium, to solve the single problem of the fertile kind of agricultural ammonium nitrate, market effect and social effect are better; The developing direction that more meets China's chemical fertilizer industry; Granule strength is increased, the anti-caking effect of product is strengthened, water absorbability reduces, and has also solved explosion hazard, makes product be convenient to use and transport.
Above-mentioned purpose of the present invention can be achieved through the following technical solutions:
A kind of production method of particle nitro-compound fertilizer, its raw material includes outside the liquid ammonium nitrate, also comprises the multiple fertile raw material of elements such as containing phosphorus, potassium, makes finished product ammonium nitrate contain elements such as the required phosphorus of crop, potassium; Additive makes the raw material uniform mixing, makes finished product have good anti-anti-caking, Strength Safety, lower water absorbability, makes product not have explosivity.Described fertilizer phosphorous, potassium element can be monoammonium phosphate, diammonium phosphate, vitriolate of tartar etc.Described additive is made up of I class, II class, III class, IV class, V class.This production technique is through following steps: liquid starting material evaporation, solid material preheating, raw material are mixed, granulation, packaging final prod.1. liquid starting material evaporation: aqueous ammonium nitrate solution is added in the vaporizer, and to be concentrated into concentration be 98.0%～99.7% in vacuum-evaporation under 150 ℃～175 ℃ temperature, obtains ammonium nitrate melt; 2. solid material preheating: powdery exsiccant phosphorus, the multiple fertile raw material of potassium are preheated to 85 ℃～110 ℃ through primary heater unit; 3. raw material is mixed: in mixing device, phosphorus, the multiple fertile raw material of potassium, additive, ammonium nitrate melt are by 5～20: 0.5～1: the mixed of 80～92 (weight ratios), stir, and keep molten state, get 140～175 ℃ of mixed melting salt; 4. granulation: mixed melting salt is delivered to prilling granulator rapidly, through the prilling spry sprinkling pelleting, and with reverse contact of tower internal cooling air, be cooled to 40 ℃～70 ℃ and crystallize into particulate product; The packing: particulate product through pack finished product.
Described phosphorus, the multiple fertile raw material of potassium are monoammonium phosphate or diammonium phosphate or vitriolate of tartar; Described binder component is as follows: (weight percent)
I class: NNO, NF, SM, sodium lauryl sulphate,
Nonylphenol polyoxyethylene ether sulfate, diffusant C1
One or more mixture 20%～50%
The II class: alkylsulphonic acid amine acetyl sodium,
Alkylbenzene sulfonate, octadecane amine
One or more mixture 5%～10%
The III class: urea, trimeric cyanamide, OAT, borax, aluminium hydroxide,
Tricyanic acid, tertiary sodium phosphate, MCA
One or more mixture 10%～30%
The IV class: rhombspar, talcum powder,
Wilkinite, zeolite, calcite
One or more mixture 20%～50%
The V class: phenylformic acid 12 (alkane) alcohol ester, polyoxypropylene glyceryl ether,
Capric acid, lauric acid, palmitinic acid, polyacrylamide
One or more mixture 1%～15%
Compare with the production method of conventional composite fertilizer with traditional agricultural ammonium nitrate, the inventive method has significant advantage: the particle nitro-compound fertilizer that (1) produced contains elements such as the required phosphorus of farm crop, potassium, total nutrient＞35%, overcome the single defective of traditional agriculture nitrogenous fertilizer composition, be more suitable for the growth needs of crop; (2) the particle nitro-compound fertilizer granule strength height of producing through the present invention, epigranular, fertilizer efficiency is good, and anti-caking effect is good, and water absorbability is low, does not have explosion hazard, is convenient to use and transport; (3) the present invention takes directly to add the method production particle nitro-compound fertilizer of solid composite fertilizer raw material in ammonium nitrate melt; (4) take the operation of composite fertilizer material preheating among the present invention, improved the physical and chemical performance of mixed melting salt; (5) add additive among the present invention, improved the performance index such as anti-caking, water absorbability, explosivity, intensity of the physical and chemical performance of mixed melting salt and product; (7) simple, the easy handling control of technology of the present invention, with low cost, economic benefit, social benefit are good, are suitable for the industrialization continuous production.
Embodiment
Below by executing example and in conjunction with the accompanying drawings production process of the present invention and the effect that reached being described further.
Fig. 1 is the technological process of production figure of particle nitro-compound fertilizer of the present invention.Embodiment 1: implement according to the following steps: 1, liquid starting material evaporation, aqueous ammonium nitrate solution is joined in the vaporizer, to be concentrated into concentration be 98.0%～99.7% in vacuum-evaporation under 150 ℃～175 ℃ temperature, evaporate is separated in separator with steam, and the ammonium nitrate melt that obtains enters blender; 2, solid material preheating is preheated to 85 ℃～110 ℃ with the dry monoammonium phosphate of powdery through well heater, delivers to blender; 3, raw material is mixed, in blender, and the monoammonium phosphate of adding 10% and 1% additive, ammonium nitrate fused solution add-on is 89% (weight percent); Fused salt mixt keeps even good mixing and molten state by additive, agitator; 4, granulation is delivered to mixed melting salt rapidly in the prilling tower at 158 ℃～171 ℃, is descended by the prilling spry spray, simultaneously with reverse contact of tower internal cooling air, is cooled to 50 ℃～70 ℃ and crystallizes into particulate product; 5, packaging final prod, the products obtained therefrom index is: total nitrogen content 31%～33%, P
2O
5Content 4%～6%, moisture content≤1.5%, median size 2.0mm, average intensity＞18N.Embodiment 2: implement according to the following steps: 1, liquid starting material evaporation, aqueous ammonium nitrate solution is joined in the vaporizer, to be concentrated into concentration be 98.0%～99.7% in vacuum-evaporation under 150 ℃～175 ℃ temperature, evaporate is separated in separator with steam, and the ammonium nitrate melt that obtains enters blender; 2, solid material preheating is preheated to 85 ℃～110 ℃ with the dry vitriolate of tartar of powdery through well heater, delivers to blender; 3, raw material is mixed, the vitriolate of tartar of adding 8% and 1% additive in blender, and ammonium nitrate fused solution add-on is 91% (weight percent); This fused salt mixt keeps even good mixing and molten state by additive, agitator; 4, granulation is delivered to mixed melting salt rapidly in the prilling tower at 158 ℃～171 ℃, is descended by the prilling spry spray, simultaneously with reverse contact of tower internal cooling air, is cooled to 40 ℃～60 ℃ and crystallizes into particulate product; 5, packaging final prod, the products obtained therefrom index is: total nitrogen content 31%～33%, K
2O content 4%～6%, moisture content≤1.5%, median size 2.5mm, average intensity＞23N.
Claims (4)
1. the production method of a particle nitro-compound fertilizer, through following steps:
(1) liquid starting material evaporation, aqueous ammonium nitrate solution is added in the vaporizer, and to be concentrated into concentration be 98.0%～99.7% in vacuum-evaporation under 150 ℃～175 ℃ temperature, the ammonium nitrate melt that obtains;
(2) solid material preheating is preheated to 85 ℃～110 ℃ with powdery exsiccant phosphorus, the multiple fertile raw material of potassium through primary heater unit;
(3) raw material is mixed, and in mixing device, phosphorus, the multiple fertile raw material of potassium, additive, ammonium nitrate melt are pressed the mixed of 5～20: 1～3: 80～92 (heavy weight ratios), stir, and keep molten state, get 140～175 ℃ of mixed melting salt;
(4) granulation is delivered to prilling granulator rapidly with mixed melting salt, through the prilling spry sprinkling pelleting, and with reverse contact of tower internal cooling air, be cooled to 40 ℃～70 ℃ and crystallize into particulate product;
(5) packing, particulate product through pack finished product.
2. the production method of particle nitro-compound fertilizer according to claim 1 is characterized in that: described phosphorus, the multiple fertile raw material of potassium are monoammonium phosphate or diammonium phosphate or vitriolate of tartar.
3. the production method of particle nitro-compound fertilizer according to claim 1 is characterized in that described additive is mixed and formed by I class, II class, III class, IV class, V class material.
4. the production method of particle nitro-compound fertilizer according to claim 3 is characterized in that described binder component is as follows: (weight percent)
I class: NNO, NF, SM, sodium lauryl sulphate,
Nonylphenol polyoxyethylene ether sulfate, diffusant C1
One or more mixture 20%～50%
The II class: alkylsulphonic acid amine acetyl sodium,
Alkylbenzene sulfonate, octadecane amine
One or more mixture 5%～10%
The III class: urea, trimeric cyanamide, OAT, borax, aluminium hydroxide,
Tricyanic acid, tertiary sodium phosphate, MCA
One or more mixture 10%～30%
The IV class: rhombspar, talcum powder,
Wilkinite, zeolite, calcite
One or more mixture 20%～50%V class: phenylformic acid 12 (alkane) alcohol ester, polyoxypropylene glyceryl ether,
Capric acid, lauric acid, palmitinic acid, polyacrylamide
One or more mixture 1%～15%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117288 CN1226244C (en) | 2003-02-12 | 2003-02-12 | Tower nitro compound fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117288 CN1226244C (en) | 2003-02-12 | 2003-02-12 | Tower nitro compound fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1448374A true CN1448374A (en) | 2003-10-15 |
| CN1226244C CN1226244C (en) | 2005-11-09 |
Family
ID=28684337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03117288 Expired - Fee Related CN1226244C (en) | 2003-02-12 | 2003-02-12 | Tower nitro compound fertilizer |
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| CN (1) | CN1226244C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001871A (en) * | 2009-12-15 | 2011-04-06 | 深圳市芭田生态工程股份有限公司 | Method for producing granulated compound fertilizer by granulating through urea tower |
| CN102020513A (en) * | 2010-12-28 | 2011-04-20 | 瓮福（集团）有限责任公司 | Additive for tower-type pelletizing of compound fertilizer |
| CN102219617A (en) * | 2011-03-22 | 2011-10-19 | 山东远东国际生物化工股份有限公司 | Process for preparing nitro-sulfenyl polypeptide compound fertilizer |
| CN102850102A (en) * | 2012-08-30 | 2013-01-02 | 贵港市芭田生态有限公司 | Preparation method for water-soluble fertilizer through high tower melt granulation |
| CN104692879A (en) * | 2015-03-20 | 2015-06-10 | 路永宽 | Method of producing water soluble ammonium phosphor nitrate through disc granulation |
| CN105622252A (en) * | 2015-05-22 | 2016-06-01 | 成都市新都化工股份有限公司 | Phosphorus nitrate compound fertilizer containing explosion-proof agent and preparation method for compound fertilizer |
| CN110511093A (en) * | 2019-09-29 | 2019-11-29 | 云南云叶化肥股份有限公司 | It is a kind of without dry granulating method compound fertilizer and preparation method thereof |
| CN110546121A (en) * | 2017-02-27 | 2019-12-06 | 亚拉国际有限公司 | Method for preparing fertilizer granules comprising alternative boron sources |
| CN110668875A (en) * | 2019-11-04 | 2020-01-10 | 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 granules |
-
2003
- 2003-02-12 CN CN 03117288 patent/CN1226244C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001871A (en) * | 2009-12-15 | 2011-04-06 | 深圳市芭田生态工程股份有限公司 | Method for producing granulated compound fertilizer by granulating through urea tower |
| CN102020513A (en) * | 2010-12-28 | 2011-04-20 | 瓮福（集团）有限责任公司 | Additive for tower-type pelletizing of compound fertilizer |
| CN102219617A (en) * | 2011-03-22 | 2011-10-19 | 山东远东国际生物化工股份有限公司 | Process for preparing nitro-sulfenyl polypeptide compound fertilizer |
| CN102850102A (en) * | 2012-08-30 | 2013-01-02 | 贵港市芭田生态有限公司 | Preparation method for water-soluble fertilizer through high tower melt granulation |
| CN104692879A (en) * | 2015-03-20 | 2015-06-10 | 路永宽 | Method of producing water soluble ammonium phosphor nitrate through disc granulation |
| CN105622252A (en) * | 2015-05-22 | 2016-06-01 | 成都市新都化工股份有限公司 | Phosphorus nitrate compound fertilizer containing explosion-proof agent and preparation method for compound fertilizer |
| CN110546121A (en) * | 2017-02-27 | 2019-12-06 | 亚拉国际有限公司 | Method for preparing fertilizer granules comprising alternative boron sources |
| CN110546121B (en) * | 2017-02-27 | 2022-05-24 | 亚拉国际有限公司 | Method for preparing fertilizer granules comprising alternative boron sources |
| CN110511093A (en) * | 2019-09-29 | 2019-11-29 | 云南云叶化肥股份有限公司 | It is a kind of without dry granulating method compound fertilizer and preparation method thereof |
| CN110668875A (en) * | 2019-11-04 | 2020-01-10 | 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 granules |
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| Publication number | Publication date |
|---|---|
| CN1226244C (en) | 2005-11-09 |
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