CN1206193C - Process for producing high concentration azophoska compound fertilizer by tower type pelletizing - Google Patents
Process for producing high concentration azophoska compound fertilizer by tower type pelletizing Download PDFInfo
- Publication number
- CN1206193C CN1206193C CN 03143982 CN03143982A CN1206193C CN 1206193 C CN1206193 C CN 1206193C CN 03143982 CN03143982 CN 03143982 CN 03143982 A CN03143982 A CN 03143982A CN 1206193 C CN1206193 C CN 1206193C
- Authority
- CN
- China
- Prior art keywords
- granulation
- technology
- powder
- mulser
- repone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 14
- 150000001875 compounds Chemical class 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000005453 pelletization Methods 0.000 title 1
- 239000002002 slurry Substances 0.000 claims abstract description 24
- 238000005469 granulation Methods 0.000 claims abstract description 22
- 230000003179 granulation Effects 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 19
- 238000005516 engineering process Methods 0.000 claims abstract description 12
- 238000004945 emulsification Methods 0.000 claims abstract description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004202 carbamide Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011591 potassium Substances 0.000 claims abstract description 8
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical group [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 14
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical group [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 12
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 12
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 12
- 239000006012 monoammonium phosphate Substances 0.000 claims description 12
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- 208000006558 Dental Calculus Diseases 0.000 claims description 4
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 230000001804 emulsifying effect Effects 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The present invention relates to technology for producing high concentration NPK compound fertilizer by tower type granulation, which has the technological processes that powder materials containing phosphorus and potassium, and an auxiliary material are added into a molten urea solution; after the mixture is mixed and stirred into melt slurry, granulation is carried out. The present invention is characterized in that the melt slurry needs emulsifying in an emulsifying machine before granulation. The present invention increases the emulsify technology before granulation, and makes use of the precise combination of three groups of rotors and stators of the emulsifying machine to generate strong shearing force during rotation at high speed. Thus, the purposes of mixing, pulverization and emulsification are realized. In the technology, large granules and dry agglomerated powder which exist in a raw material mixture are uniformly dispersed after the large granules and the dry agglomerated powder are emulsified. Thus, a mixed material becomes emulsifying liquid with height uniformity and with average grain diameter of 0.5 mum. Consequently, the phenomenon that a spray head is clogged because of low stirring efficiency, etc. is eliminated. Continuous industrialization production can be completely achieved.
Description
Technical field
The invention belongs to the chemical technique field, relate to the technology that a kind of tower granulation is produced high-concentration compound N-P-K fertilizer.
Background technology
The Chinese patent application method of high-concentration compound N-P-K fertilizer " tower granulation produce " (02103008.1) disclose a kind of in the fused solution of urea, add nitrogenous; contain potassium powder and auxiliary material; mix; directly be sent to granulation in the tower type pelletizer after stirring the production molten slurry; it is good that this method has into sphericity; but yield rate is high and the advantage of production plurality of specifications product; but; because 1. having large granular materials and other impurity in the powder unavoidably exists; 2. stirring efficiency is low; ultra-fine grain in the powder (micro mist) mixes with urine is extremely difficult; embrace into dry powder group easily; above-mentioned reason causes shower nozzle very easily blocked, thereby influences serialization production.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, it is blocked to provide a kind of prilling spry to be difficult for, and can reach the technology that industrialization continuous production purpose tower granulation is produced high-concentration compound N-P-K fertilizer fully.
Technical scheme of the present invention is as follows:
A kind of tower granulation is produced the technology of high-concentration compound N-P-K fertilizer, and its technological process is phosphorous for adding in the fused urea soln, contain potassium powder and auxiliary material, mixes, stirs into granulation behind the molten slurry, and keeping slurry temperature is 116-125 ℃; Described phosphorous powder is a monoammonium phosphate, containing the potassium powder is Repone K or vitriolate of tartar, the additional proportion of above-mentioned urea, monoammonium phosphate, Repone K or vitriolate of tartar is counted 2-4 with weight ratio: 1-2: 1, described auxiliary material is lime carbonate or zeolite, lime carbonate joins in the molten slurry that contains Repone K with the 5-10% of total raw material amount, zeolite joins in the molten slurry of sulfur acid potassium with the 10-20% of total raw material amount, it is characterized in that: above-mentioned molten slurry needs to carry out emulsification before granulation in mulser, and the material median size after the emulsification is 0.5 μ m;
Described mulser ingress is equipped with filtering net;
Described mulser is equipped with RHVC.
The present invention increases emulsifying process before granulation, utilize three groups of commentaries on classics of mulser, the precision of stator to realize mixing, pulverizing and emulsification purpose in conjunction with reaching the powerful shearing force that in high speed rotating, produces, existing macrobead and dry powder group homodisperse after emulsification in the raw mix in this technology, make mixture become emulsifying aq highly uniformly, its median size is 0.5 μ m, thereby solved the shower nozzle latch up phenomenon that causes owing to reasons such as stirring efficiency are low, can reach the industrialization continuous production fully; Simultaneously, filtering net is installed in the mulser ingress, is destroyed the normal operation of mulser to prevent impurity such as quick-fried slag, being equipped with RHVC then is to regulate the mulser rotating speed according to the liquid level height and the emulsifying effectiveness of stirred pot.
Embodiment
Embodiment 1:
Get monoammonium phosphate (MAP) 21.0kg that is crushed to about 60 orders, Repone K (KCl) 19.8kg, lime carbonate (CaCO
3) the 9.7kg powder; join in the fusing urea solution of 49.5kg after mixing, the dry intensification; fully stirred 5 minutes; keeping slurry temperature is 118 ℃, melting charge slurry is sent to carries out emulsification in the mulser then, leaks into subsequently in the rotary nozzle on the tower type pelletizer top; granulation and cooling; qualified particle is high density NPK composite fertilizer, and product specification is: 25-10-10, product contained humidity 1.3%, the average anti-crushing power 9.4N of particle, yield rate 99%.
Embodiment 2
Get monoammonium phosphate (MAP) 25.1kg that is crushed to about 60 orders, Repone K (KCl) 23.8kg, lime carbonate (CaCO
3) the 4.7kg powder; join in the fusing urea solution of 46.4kg after mixing, the dry intensification, fully stirred 8 minutes, keeping slurry temperature is 118 ℃; then melting charge slurry is sent to and carries out emulsification in the mulser; subsequently melting charge slurry is leaked in the rotary nozzle on the tower type pelletizer top, granulation and cooling, qualified particle is high density NPK composite fertilizer; product specification is: 24-12-12; after testing, every index is all qualified, and yield rate reaches more than 98%.
Embodiment 3
Get monoammonium phosphate (MAP) 25.1kg that is crushed to about 60 orders, Repone K (KCl) 11.9kg, lime carbonate (CaCO
3) the 16.6kg powder; join in the fusing urea solution of 46.4kg after mixing, the dry intensification, fully stirred 6 minutes, keeping slurry temperature is 116 ℃; then melting charge slurry is sent to and carries out emulsification in the mulser; subsequently melting charge slurry is leaked in the rotary nozzle on the tower type pelletizer top, granulation and cooling, qualified particle is high density NPK composite fertilizer; product specification is: 24-12-6; after testing, every index is all qualified, and yield rate reaches more than 98%.
Embodiment 4
Get monoammonium phosphate (MAP) 25.1kg that is crushed to about 60 orders; Repone K (KCl) 12.2kg; zeolite powder 16.3kg powder; join in the fusing urea solution of 46.4kg after mixing, the dry intensification; fully stirred 6 minutes; keeping slurry temperature is 125 ℃; then melting charge slurry is sent to and carries out emulsification in the mulser; subsequently melting charge slurry is leaked in the rotary nozzle on the tower type pelletizer top, granulation and cooling, qualified particle is high density NPK composite fertilizer; product specification is: 24-12-6; after testing, every index is all qualified, and yield rate reaches more than 98%.
Claims (3)
1. a tower granulation is produced the technology of high-concentration compound N-P-K fertilizer, and its technological process is phosphorous for adding in the fused urea soln, contain potassium powder and auxiliary material, mixes, stirs into granulation behind the molten slurry, and keeping slurry temperature is 116-125 ℃; Described phosphorous powder is a monoammonium phosphate, containing the potassium powder is Repone K or vitriolate of tartar, the additional proportion of above-mentioned urea, monoammonium phosphate, Repone K or vitriolate of tartar is counted 2-4 with weight ratio: 1-2: 1, described auxiliary material is lime carbonate or zeolite, lime carbonate joins in the molten slurry that contains Repone K with the 5-10% of total raw material amount, zeolite joins in the molten slurry of sulfur acid potassium with the 10-20% of total raw material amount, it is characterized in that: above-mentioned molten slurry needs to carry out emulsification before granulation in mulser, and the material median size after the emulsification is 0.5 μ m.
2. according to the technology of the described tower granulation production of claim 1 high-concentration compound N-P-K fertilizer, it is characterized in that: described mulser ingress is equipped with filtering net.
3. according to the technology of claim 1 or 2 described tower granulations production high-concentration compound N-P-K fertilizers, it is characterized in that: described mulser is equipped with RHVC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143982 CN1206193C (en) | 2003-08-07 | 2003-08-07 | Process for producing high concentration azophoska compound fertilizer by tower type pelletizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143982 CN1206193C (en) | 2003-08-07 | 2003-08-07 | Process for producing high concentration azophoska compound fertilizer by tower type pelletizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1473808A CN1473808A (en) | 2004-02-11 |
| CN1206193C true CN1206193C (en) | 2005-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03143982 Expired - Fee Related CN1206193C (en) | 2003-08-07 | 2003-08-07 | Process for producing high concentration azophoska compound fertilizer by tower type pelletizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1206193C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013035106A1 (en) * | 2011-09-07 | 2013-03-14 | Indo Gulf Fertilizers | A process for manufacturing a composite fertilizer |
| CN102659461B (en) * | 2012-04-20 | 2013-07-17 | 陕西景盛肥业集团有限公司 | High-porosity compound fertilizer high tower granulating method and high-porosity compound fertilizer |
| CN102701846A (en) * | 2012-05-28 | 2012-10-03 | 徐州市芭田生态有限公司 | Method for controlling content of biuret in compound fertilizers for melt granulation in prilling tower |
| CN102863281B (en) * | 2012-08-27 | 2014-10-22 | 徐州市芭田生态有限公司 | Method for producing high-tower nitro-sulfenyl compound fertilizer and production system applying method |
| CN104671948A (en) * | 2013-12-02 | 2015-06-03 | 湖北新洋丰肥业股份有限公司 | Novel prilling-tower process compound fertilizer |
| CN104973905A (en) * | 2014-04-11 | 2015-10-14 | 福建佳玛驰生态科技有限公司 | Fertilizer specially-used for vegetables in greenhouses and preparation method thereof |
| CN104973906A (en) * | 2014-04-11 | 2015-10-14 | 福建佳玛驰生态科技有限公司 | Fertilizer specially used for honey pomelo tree and preparation method thereof |
| CN108586042A (en) * | 2018-05-22 | 2018-09-28 | 亳州司尔特生态肥业有限公司 | A kind of method for preparing fertilizer free of drying |
| CN112811949A (en) * | 2021-03-22 | 2021-05-18 | 盘锦冠桥复合肥科技服务有限公司 | Method for preparing compound fertilizer by spraying ammonium phosphate solution |
-
2003
- 2003-08-07 CN CN 03143982 patent/CN1206193C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1473808A (en) | 2004-02-11 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XI MINGHUA Free format text: FORMER OWNER: ZHOU JIANJUN Effective date: 20060728 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060728 Address after: 750002 the Ningxia Hui Autonomous Region Yinchuan District of Xingqing City Development Zone, Xinyuan No. 2 - 2 - 502 Patentee after: Xi Minghua Address before: 750021 No. 38 Beijing West Road, the Ningxia Hui Autonomous Region, Yinchuan Patentee before: Zhou Jianjun |
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| ASS | Succession or assignment of patent right |
Owner name: NINGXIA FENGYOU CHEMICAL ENGINEERING CO., LTD. Free format text: FORMER OWNER: XI MINGHUA Effective date: 20061020 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20061020 Address after: 750021 No. 750 West Beijing Road, Xixia District, the Ningxia Hui Autonomous Region, Yinchuan Patentee after: Ningxia Fengyou Chemical Co., Ltd. Address before: 750002 the Ningxia Hui Autonomous Region Yinchuan District of Xingqing City Development Zone, Xinyuan No. 2 - 2 - 502 Patentee before: Xi Minghua |
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| C56 | Change in the name or address of the patentee |
Owner name: NINGXIA KAIYUAN FENGYOU CHEMICAL CO., LTD. Free format text: FORMER NAME OR ADDRESS: NINGXIA FENGYOU CHEMICAL ENGINEERING CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: No. 750 West Beijing Road, Xixia District, the Ningxia Hui Autonomous Region, Yinchuan Patentee after: Ningxia Kaiyuan Huafeng Chemical Limited by Share Ltd Address before: No. 750 West Beijing Road, Xixia District, the Ningxia Hui Autonomous Region, Yinchuan Patentee before: Ningxia Fengyou Chemical Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050615 Termination date: 20120807 |