CN101575222A - Method for producing ammonium sulphate grain products by using inorganic caking agent - Google Patents
Method for producing ammonium sulphate grain products by using inorganic caking agent Download PDFInfo
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- CN101575222A CN101575222A CNA2009101026084A CN200910102608A CN101575222A CN 101575222 A CN101575222 A CN 101575222A CN A2009101026084 A CNA2009101026084 A CN A2009101026084A CN 200910102608 A CN200910102608 A CN 200910102608A CN 101575222 A CN101575222 A CN 101575222A
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- caking agent
- ammonium sulphate
- binder bond
- mineral binder
- magnesium sulfate
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Abstract
The invention discloses a method for producing ammonium sulphate grain products by using an inorganic caking agent, which comprises the steps of: (1) selecting one of diammonium phosphate or monoammonium phosphate, or the mixture of diammonium phosphate or monoammonium phosphate and magnesium sulfate monohydrate or magnesium sulfate heptahydrate as the inorganic caking agent for producing ammonium sulphate grains, and crushing the inorganic caking agent for standby; (2) crashing the ammonium sulphate crystals; (3) uniformly mixing the crashed ammonium sulphate crystals and the crashed inorganic caking agent according to the proportion between the inorganic caking agent and the ammonium sulphate, adding the mixture into a pelletizer for pelleting with middle pressure and steam to obtain the semi-finished products; (4) drying the semi-finished products; and (5) screening the dried finished products, and packaging the products which are inspected to be qualified. The method for producing ammonium sulphate grain products by using the inorganic caking agent has the advantages that: (1) the technique is simple and the operation is convenient; (2) the caking agent is easy to be obtained and the weight percentage of the product nutrition is above 90 percent, the granularity is uniform and the strength is suitable for large mechanized operation; and (3) the organic caking agent is free to be mixed according to the granulating requirement, and can meet large mechanized production. The method of producing ammonium sulphate grain products by using the inorganic caking agent is suitable to be popularized and used in producing compound fertilizers.
Description
Technical field
The present invention relates to the chemical fertilizer product, furthermore, relate to the production of ammonium sulfate, relate in particular to the method for producing ammonium sulphate grain with mineral binder bond.
Background technology
Along with development of market economy, large-scale agricultural mechanization development is more and more fast.In recent years, granulated fertilizer has been subjected to client's favor, and its price is far above the fertilizer of traditional form.As the nitrogenous fertilizer ammonium sulfate that goes on the market the earliest, present crystal habit can't satisfy mechanization of agriculture fertilising requirement.
In the existing Chinese patent application part, disclose a kind of preparation method of large-particle ammonium sulfate, but failed to be widelyd popularize for the CN1051711 of Japanese publication number; CN88102293A number of Holland application discloses in grain fluidized bed granulation contains the granulated fertilizer of urea and ammonium sulfate with production method, but because it contains urea concentration up to 70%～99.9%, reduce the content of ammonium sulfate own, changed its component, especially reduced the content of S.It is the method for preparing ammonium sulfate and fertilizer of carbon dioxide with the gypsum that No. 00104473.7 of Ningxia Zhang Minqian application then discloses a kind of small nitrogenous fertilizer plant, mention the direct oven dry of the lime carbonate that will contain ammonium sulfate and produce fertilizer of carbon dioxide, but this method can not be used for ammonium sulphate grain production with adhesive complex.Still the no-trump organic binder bond is used for the report that ammonium sulphate grain is produced at present.
Summary of the invention
The object of the present invention is to provide a kind of method of producing ammonium sulphate grain products, can make agricultural crystal ammonium sulfate bonding granulating, thereby search out a kind of new production approach for ammonium sulphate grain with mineral binder bond.
For with the crystal ammonium sulfate granulating on the market, satisfy the mechanize requirement, the contriver is through long-term exploratory development, chosen and to have made the granulated mineral binder bond of crystal ammonium sulfate, and can guarantee the character of ammonium sulfate itself, do not changed the component concentration of ammonium sulfate, the ammonium sulfate product uniform particles of being produced, granularity is accounting for total amount more than 90% about 1-5mm, more than the intensity 12N, makes it can satisfy fully the requirement of big machineryization.
The method with mineral binder bond production large-particle ammonium sulfate product that the contriver provides may further comprise the steps:
(1) select a kind of in diammonium phosphate or the monoammonium phosphate for use, or the mixture of diammonium phosphate or monoammonium phosphate and magnesium sulfate monohydrate or magnesium sulfate heptahydrate is as being used for the mineral binder bond that ammonium sulphate grain is produced, it is standby to pulverize the back;
(2) crystal ammonium sulfate is pulverized;
(3) the crystal ammonium sulfate after the pulverizing and the mineral binder bond of pulverizing mix in proportion by mineral binder bond and ammonium sulfate, add in the tablets press, carry out granulation with middle pressure steam, obtain work in-process;
(4) work in-process are carried out drying;
(5) dried product sieves according to moisture content index and granularity requirements, through being up to the standards, choosing particles with suitable particle at last and packs as product.
In the above-mentioned the first step, described mineral binder bond is pulverized the back granularity and is controlled at 20～200 orders; The blending ratio of described diammonium phosphate or monoammonium phosphate and magnesium sulfate monohydrate or magnesium sulfate heptahydrate is 1: 1～4: 1.
In above-mentioned second step, described crystal ammonium sulfate is pulverized the back granularity and is controlled between 20～200 orders.
In above-mentioned the 3rd step, the additional proportion of described mineral binder bond is controlled between 1%～10%, guarantees the composition of ammonium sulfate product itself; Control control prilling temperature is between 60 ℃～150 ℃.
In above-mentioned the 4th step, described drying process is according to the hot blast capacity load, chooses one section drying or two-stage drying, and used drying temperature is 220 ℃～280 ℃ for one section, and two sections is 180 ℃～240 ℃.
In above-mentioned the 5th step, the granularity of described finished product is 1～5mm.
Method of the present invention is compared with known method of production, has the following advantages: 1. production technique is simple, is convenient to operation; 2. binding agent is easy to get, and the massfraction of product nutrient is more than 90%, epigranular, and intensity is fit to the big machinery operation; 3. binding agent is according to the granulating situation, and suitable free proportioning can satisfy big machinery production.This method suits generally to promote in production of compound fertilizer, and can improve product market competitiveness.
Embodiment
Further specify the present invention by the following examples:
Example 1 single mineral binder bond is produced ammonium sulphate grain
Select for use diammonium phosphate as mineral binder bond, it is standby to be crushed to 20～200 orders; (effective constituent is N:20.4%, S:23.58%, H with the ammonia sulfate crystal of≤2mm
2O:0.8%) be crushed to 20～200 orders by pulverizer; According to the diammonium phosphate and the ratio of ammonium sulfate is to mix at 5: 95, enters in the tablets press, by middle pressure steam spraying carrying out granulation, 120 ℃～160 ℃ of prilling temperatures; By two sections drying machine dryings, one section exsiccant temperature is at 220 ℃～280 ℃, and the two-stage drying temperature is carried out drying at 180 ℃～240 ℃; Cooling back is with the sieve apparatus screening, and the particle of choosing granularity and be 1～5mm is an ammonium sulfate product, and through being up to the standards, packing is dispatched from the factory.
Example 2 blended mineral binder bonds are produced ammonium sulphate grain
Step is with embodiment 1, and to be crushed to 20～200 orders as mineral binder bond standby according to mixing at 1: 1 to select monoammonium phosphate and magnesium sulfate monohydrate for use; According to the mineral binder bond and the ratio of ammonium sulfate is to mix at 3: 97, adds in the lump after the mixing in the tablets press, and control ratio and process operation parameter make qualified particulate state ammonium sulfate product.
Above embodiment only is used for implementation process of the present invention is described, and does not mean that described mineral binder bond is limited to the kind among the embodiment.
Following table is listed processing parameter and quality product detailed content
Table 1 processing parameter table look-up
Table 2 end product quality index table look-up
Claims (6)
1 usefulness mineral binder bond is produced the method for ammonium sulphate grain products, and its feature comprises:
(1) select a kind of in diammonium phosphate or the monoammonium phosphate for use, or the mixture of diammonium phosphate or monoammonium phosphate and magnesium sulfate monohydrate or magnesium sulfate heptahydrate is as being used for the mineral binder bond that ammonium sulphate grain is produced, it is standby to pulverize the back;
(2) crystal ammonium sulfate is pulverized;
(3) the crystal ammonium sulfate after the pulverizing and the mineral binder bond of pulverizing mix in proportion by mineral binder bond and ammonium sulfate, add in the tablets press, carry out granulation with middle pressure steam, obtain work in-process;
(4) work in-process are carried out drying;
(5) dried finished products is sieved according to moisture content index and granularity requirements, through being up to the standards, choosing particles with suitable particle at last and packs as product.
2 as claims 1 described method, it is characterized in that the pulverizing of mineral binder bond described in the first step back granularity is controlled at 20～200 orders; The blending ratio of described diammonium phosphate or monoammonium phosphate and magnesium sulfate monohydrate or magnesium sulfate heptahydrate is 1: 1～4: 1.
3 as claims 1 described method, it is characterized in that in second step, described crystal ammonium sulfate is pulverized the back granularity and is controlled at 20～200 orders.
4 as claims 1 described method, it is characterized in that the additional proportion of described mineral binder bond is controlled at 1%～10% in the 3rd step; Control control prilling temperature is at 60 ℃～150 ℃.
5 as claims 1 described method, it is characterized in that described drying is one section drying or two-stage drying in the 4th step, and described drying temperature is 220 ℃～280 ℃ for one section, and two sections is 180 ℃～240 ℃.
6 as claims 1 described method, it is characterized in that the granularity of described finished product is 1～5mm in the 5th step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009101026084A CN101575222B (en) | 2009-06-05 | 2009-06-05 | Method for producing ammonium sulphate grain products by using inorganic caking agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101026084A CN101575222B (en) | 2009-06-05 | 2009-06-05 | Method for producing ammonium sulphate grain products by using inorganic caking agent |
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| CN101575222A true CN101575222A (en) | 2009-11-11 |
| CN101575222B CN101575222B (en) | 2012-05-02 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503635A (en) * | 2011-10-27 | 2012-06-20 | 山西师范大学 | Production process for potassium nitrogen compound fertilizer |
| CN103172453A (en) * | 2013-04-23 | 2013-06-26 | 济南乐喜施肥料有限公司 | Slow-release compound fertilizer and production method thereof |
| CN103588584A (en) * | 2013-11-28 | 2014-02-19 | 瓮福（集团）有限责任公司 | Adhesive used for producing granular ammonium sulfate |
| CN103739312A (en) * | 2013-12-19 | 2014-04-23 | 瓮福（集团）有限责任公司 | Production method for improving nitrogen of granular ammonium sulfate |
| CN103739313A (en) * | 2013-12-19 | 2014-04-23 | 瓮福（集团）有限责任公司 | Method for producing granular ammonium sulfate product |
| CN104387170A (en) * | 2014-11-10 | 2015-03-04 | 瓮福（集团）有限责任公司 | Production method of granular ammonium sulfate |
| CN104446754A (en) * | 2014-11-10 | 2015-03-25 | 瓮福（集团）有限责任公司 | Method for producing high-sulfur ammonium sulfate |
| CN109704863A (en) * | 2019-02-18 | 2019-05-03 | 湖北三宁化工股份有限公司 | A kind of bulky grain sulfur-containing nitrogen fertilizer and preparation method thereof |
| CN112403391A (en) * | 2020-10-16 | 2021-02-26 | 湖北三宁化工股份有限公司 | Binder for producing large-particle ammonium sulfate and preparation method thereof |
| CN113387744A (en) * | 2021-05-26 | 2021-09-14 | 龙蟒大地农业有限公司 | Granular medium element fertilizer based on phosphorite flotation tailings and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2878173B1 (en) * | 2004-11-25 | 2007-01-19 | Valoragri Sa Sa | PROCESS FOR TREATING EXTINCTOR POWDER WASTE, AND FERTILIZER OBTAINED BY SUCH A METHOD |
| CN100354235C (en) * | 2006-04-06 | 2007-12-12 | 潍坊昌大肥料有限公司 | Spray pelleting process of compound fertilizer |
| CN101182265A (en) * | 2007-12-05 | 2008-05-21 | 天津市中天化肥有限公司 | Method for producing three-layer coated soybean fertilizer |
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2009
- 2009-06-05 CN CN2009101026084A patent/CN101575222B/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503635A (en) * | 2011-10-27 | 2012-06-20 | 山西师范大学 | Production process for potassium nitrogen compound fertilizer |
| CN103172453A (en) * | 2013-04-23 | 2013-06-26 | 济南乐喜施肥料有限公司 | Slow-release compound fertilizer and production method thereof |
| CN103172453B (en) * | 2013-04-23 | 2014-09-10 | 济南乐喜施肥料有限公司 | Slow-release compound fertilizer and production method thereof |
| CN103588584A (en) * | 2013-11-28 | 2014-02-19 | 瓮福（集团）有限责任公司 | Adhesive used for producing granular ammonium sulfate |
| CN103739312A (en) * | 2013-12-19 | 2014-04-23 | 瓮福（集团）有限责任公司 | Production method for improving nitrogen of granular ammonium sulfate |
| CN103739313A (en) * | 2013-12-19 | 2014-04-23 | 瓮福（集团）有限责任公司 | Method for producing granular ammonium sulfate product |
| CN104387170A (en) * | 2014-11-10 | 2015-03-04 | 瓮福（集团）有限责任公司 | Production method of granular ammonium sulfate |
| CN104446754A (en) * | 2014-11-10 | 2015-03-25 | 瓮福（集团）有限责任公司 | Method for producing high-sulfur ammonium sulfate |
| CN109704863A (en) * | 2019-02-18 | 2019-05-03 | 湖北三宁化工股份有限公司 | A kind of bulky grain sulfur-containing nitrogen fertilizer and preparation method thereof |
| CN112403391A (en) * | 2020-10-16 | 2021-02-26 | 湖北三宁化工股份有限公司 | Binder for producing large-particle ammonium sulfate and preparation method thereof |
| CN113387744A (en) * | 2021-05-26 | 2021-09-14 | 龙蟒大地农业有限公司 | Granular medium element fertilizer based on phosphorite flotation tailings and preparation method thereof |
| CN113387744B (en) * | 2021-05-26 | 2022-12-02 | 龙蟒大地农业有限公司 | Granular medium-element fertilizer based on phosphorite flotation tailings and preparation method thereof |
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| CN101575222B (en) | 2012-05-02 |
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Address after: 550500 Guizhou Province, Qiannan Buyei and Miao Autonomous Prefecture Fuquan Racecourse town Yingbin Road No. 1 Wengfu group Patentee after: WENGFU GROUP Co.,Ltd. Address before: 550002 Guizhou Province, Guiyang City Road No. 57 Wengfu international 23 chief engineer office Patentee before: WENGFU GROUP Co.,Ltd. |