CN101723756B - Method for preventing ammonium phosphate product from caking - Google Patents
Method for preventing ammonium phosphate product from caking Download PDFInfo
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- CN101723756B CN101723756B CN 200910102983 CN200910102983A CN101723756B CN 101723756 B CN101723756 B CN 101723756B CN 200910102983 CN200910102983 CN 200910102983 CN 200910102983 A CN200910102983 A CN 200910102983A CN 101723756 B CN101723756 B CN 101723756B
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- caking agent
- ammonium phosphate
- phosphoric acid
- caking
- product
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Abstract
The invention relates to a method for preventing an ammonium phosphate product from caking, which comprises the following steps: delivering an anti-caking agent to a container; conveying the anti-caking agent to the inlet of a phosphoric acid delivery pump by a metering pump after stirring and mixing the anti-caking agent uniformly; after mixing the anti-caking agent and the phosphoric acid, delivering the mixture to an ammoniation reactor simultaneously to generate monoammonium phosphate slurry with the anti-caking agent; and finally concentrating and drying the slurry according to the conventional method to obtain the qualified ammonium phosphate product. The method provided by the invention solves the caking problem of the ammonium phosphate product and has the following advantages that: (1) the adding amounts of the anti-caking agent and the phosphoric acid are adjusted stably; (2) poor product mobility and difficult package are not easy to be caused by overmuch adding amount; and (3) the damage to a conveyor belt caused by adding the anti-caking agent into the product is avoided. The method is applied to the manufacturers of ammonium phosphate fertilizer.
Description
Technical field
The present invention relates to phosphate fertilizer, in particular to the production of ammonium phosphate, relate in particular to the method for ammonium phosphate product anti-caking.
Background technology
Ammophos is one of main fertilizer of industry such as modern agriculture and forestry, typically refers to monoammonium phosphate and diammonium phosphate, is called for short the phosphorus ammonium.Different raw material production phosphorus ammonium physical properties difference is larger, and the Rock Phosphate (72Min BPL) that has can be produced the phosphorus ammonium of high nutrient, have can only production at the bottom of nutrient monoammonium phosphate; It is little that the Rock Phosphate (72Min BPL) that has is produced the ammonium phosphate product degree of agglomeration, and the Rock Phosphate (72Min BPL) production phosphorus ammonium degree of agglomeration that has is comparatively serious.At present, there is producer directly in product, to add anti-hard caking agent, wish to solve the fertilizer agglomeration problem, but this can causes damage to belt conveyor, such as belt elongation, slipping of belt etc.
The technology that prevents the ammonium phosphate product caking is few, there is no the technical scheme of application Chinese patent through retrieval.
Summary of the invention
The method that the purpose of this invention is to provide a kind of preventing ammonium phosphate product from caking is to solve the problem of ammonium phosphate product caking.
The method that the contriver provides is: anti-hard caking agent is sent in the container, is mixed and be pumped into the import of phosphoric acid transferpump with metering afterwards, anti-hard caking agent with enter simultaneously ammoniation reactor after phosphoric acid mixes, generation is with the monoammonium phosphate slip of anti-hard caking agent; At last according to ordinary method slip is concentrated, obtains qualified ammonium phosphate product after the drying.
Above-mentioned anti-hard caking agent is the organism anti-hard caking agents such as liquid n-Hexadecane, paraffin, and its add-on is controlled at 2～10L/h; Phosphoric acid amount is controlled at 20～45m
3/ h.
Method provided by the invention has solved the problem of ammonium phosphate product caking, has the following advantages:
(1) anti-hard caking agent add-on and phosphoric acid add-on modification stability;
(2) be difficult for causing add-on too much to affect the product poor fluidity, produce the packing difficulty.
(3) avoid anti-hard caking agent to be added in the damage that cause belt conveyor the product the inside.
The present invention is applicable to the manufacturer of ammophos.
Description of drawings
Accompanying drawing is the schematic flow sheet of preventing ammonium phosphate product from caking method of the present invention.
Among the figure: 1 is the anti-hard caking agent storage tank, and 2 is phosphoric acid storage tank, and 3 is anti-hard caking agent solution measures pump, and 4 is the phosphoric acid transferpump, and 5 is ammoniation reactor, and 6 is agitator.
[embodiment]
In the MAP Plant of urn good fortune phosphate fertilizer plant of urn good fortune (group) company limited phosphoric acid storage tank 2, anti-hard caking agent storage tank 1, ammoniation reactor 5 and transferpump are arranged.Adopt the inventive method, anti-hard caking agent is sent in the anti-hard caking agent storage tank 1, under agitation be dissolved in water, mix and send into 4 imports of phosphoric acid transferpump with anti-hard caking agent solution measures pump 3 afterwards, anti-hard caking agent with enter simultaneously ammoniation reactor 5 after phosphoric acid mixes, generate the monoammonium phosphate slip with anti-hard caking agent; At last according to ordinary method slip is concentrated, obtains qualified ammonium phosphate product after the drying.
By groping for many years, anti-hard caking agent is added in the phosphorus ammonium raw material, by improving the slip stickiness, realized preventing that urn good fortune phosphate fertilizer plant scale from being 480,000 tons of P
2O
5The target of the MAP Plant product caking in/year.
Claims (2)
1. the method for a preventing ammonium phosphate product from caking, it is characterized in that the method is that anti-hard caking agent is sent in the container, mix and be pumped into the import of phosphoric acid transferpump with metering afterwards, anti-hard caking agent with enter simultaneously ammoniation reactor after phosphoric acid mixes, generation is with the monoammonium phosphate slip of anti-hard caking agent, and described anti-hard caking agent is liquid organism anti-hard caking agent n-Hexadecane or paraffin; At last according to ordinary method slip is concentrated, obtains qualified ammonium phosphate product after the drying.
2. in accordance with the method for claim 1, it is characterized in that described anti-hard caking agent n-Hexadecane or paraffin add-on are controlled at 2～10L/h; Phosphoric acid amount is controlled at 20～45m
3/ h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910102983 CN101723756B (en) | 2009-12-25 | 2009-12-25 | Method for preventing ammonium phosphate product from caking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910102983 CN101723756B (en) | 2009-12-25 | 2009-12-25 | Method for preventing ammonium phosphate product from caking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101723756A CN101723756A (en) | 2010-06-09 |
| CN101723756B true CN101723756B (en) | 2013-04-24 |
Family
ID=42445400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910102983 Active CN101723756B (en) | 2009-12-25 | 2009-12-25 | Method for preventing ammonium phosphate product from caking |
Country Status (1)
| Country | Link |
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| CN (1) | CN101723756B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001883B (en) * | 2010-10-26 | 2013-05-22 | 瓮福（集团）有限责任公司 | Method for using sulfates as ammonium phosphate anticaking agent |
| CN102126888A (en) * | 2010-12-29 | 2011-07-20 | 瓮福（集团）有限责任公司 | Method for adding monoammonium phosphate anti-blocking agent |
| CN102276361A (en) * | 2011-07-26 | 2011-12-14 | 瓮福（集团）有限责任公司 | Gas wrapping method for preventing ammonium phosphate from caking |
| CN107572492A (en) * | 2017-10-25 | 2018-01-12 | 贵州大学 | A kind of MAP anticaking agent method of slurry process generation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373109A (en) * | 2002-04-08 | 2002-10-09 | 殷海权 | Loose compound fertilizer containing loosening agent and its preparing process |
| RU2263652C1 (en) * | 2004-11-19 | 2005-11-10 | Закрытое акционерное общество "Минерально-химическая компания "ЕвроХим" (ЗАО "МХК "ЕвроХим") | Method for preparing nitrogen-phosphorus fertilizer |
| CN1762915A (en) * | 2005-09-01 | 2006-04-26 | 刘天暘 | Coloured phosphorus ammonium fertilizer production method and its dying wrapping agent |
-
2009
- 2009-12-25 CN CN 200910102983 patent/CN101723756B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373109A (en) * | 2002-04-08 | 2002-10-09 | 殷海权 | Loose compound fertilizer containing loosening agent and its preparing process |
| RU2263652C1 (en) * | 2004-11-19 | 2005-11-10 | Закрытое акционерное общество "Минерально-химическая компания "ЕвроХим" (ЗАО "МХК "ЕвроХим") | Method for preparing nitrogen-phosphorus fertilizer |
| CN1762915A (en) * | 2005-09-01 | 2006-04-26 | 刘天暘 | Coloured phosphorus ammonium fertilizer production method and its dying wrapping agent |
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| Publication number | Publication date |
|---|---|
| CN101723756A (en) | 2010-06-09 |
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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: 23, 550002 floor, International Building, No. 57, South City Road, Nanming District, Guiyang, Guizhou Patentee before: WENGFU GROUP Co.,Ltd. |
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