CN102020513A - Additive for tower-type pelletizing of compound fertilizer - Google Patents
Additive for tower-type pelletizing of compound fertilizer Download PDFInfo
- Publication number
- CN102020513A CN102020513A CN2010106086436A CN201010608643A CN102020513A CN 102020513 A CN102020513 A CN 102020513A CN 2010106086436 A CN2010106086436 A CN 2010106086436A CN 201010608643 A CN201010608643 A CN 201010608643A CN 102020513 A CN102020513 A CN 102020513A
- Authority
- CN
- China
- Prior art keywords
- additive
- fertilizer
- compound fertilizer
- composite fertilizer
- tower
- 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.)
- Pending
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 68
- 239000000654 additive Substances 0.000 title claims abstract description 23
- 230000000996 additive effect Effects 0.000 title claims abstract description 23
- 150000001875 compounds Chemical class 0.000 title claims abstract description 21
- 238000005453 pelletization Methods 0.000 title abstract 5
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 10
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 150000002828 nitro derivatives Chemical class 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000005469 granulation Methods 0.000 claims description 36
- 230000003179 granulation Effects 0.000 claims description 36
- 239000002131 composite material Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 24
- 229940001516 sodium nitrate Drugs 0.000 claims description 9
- DHKHZGZAXCWQTA-UHFFFAOYSA-N [N].[K] Chemical compound [N].[K] DHKHZGZAXCWQTA-UHFFFAOYSA-N 0.000 claims description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims description 2
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical group [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims description 2
- 210000002700 urine Anatomy 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 18
- 239000002245 particle Substances 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 239000011268 mixed slurry Substances 0.000 description 11
- 239000000843 powder Substances 0.000 description 10
- 238000012216 screening Methods 0.000 description 10
- 241000282326 Felis catus Species 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 238000013467 fragmentation Methods 0.000 description 5
- 238000006062 fragmentation reaction Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 2
- LQXZLHKVIRVBTC-UHFFFAOYSA-O [N+](=O)([O-])[O-].[NH4+].[P] Chemical compound [N+](=O)([O-])[O-].[NH4+].[P] LQXZLHKVIRVBTC-UHFFFAOYSA-O 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 208000006558 Dental Calculus Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses an additive for the tower-type pelletizing of a compound fertilizer, which is characterized in that sodium nitrate serving as the additive is added in an amount which is 1/100 to 1/3 based on the weight of the slurry of the compound fertilizer; the compound fertilizer is urea-based or nitro compound fertilizer; and the slurry of the compound fertilizer is slurry of a melting fertilizer formed by melting raw materials for the compound fertilizer produced by the tower-type pelletizing. By using the additive, the viscosity of the slurry of the compound fertilizer can be reduced, the generation amount of bubbles can be reduced, the liquidity of the slurry can be improved, a pelletizing spray nozzle can be prevented from being blocked, and the production of the tower-type pelletizing can be performed stably, normally and continuously.
Description
Technical field
The present invention relates to chemical technology field, relate in particular to a kind of additive that is used for the composite fertilizer tower granulation.
Background technology
It is to add monoammonium phosphate, potash fertilizer (as Repone K, vitriolate of tartar) and auxiliary material etc. to mix the fertilizer slurry of making good fluidity in fusing urea or ammonium nitrate (ammonium nitrate phosphorus) solution that tower granulation is produced the composite fertilizer cardinal principle, this slip is by the ejection of cat head prilling spry, cooling curing becomes particle in air, obtains the compound fertilizer that nutrient is evenly distributed, particle shape is good.Tower granulation is produced the major advantage of composite fertilizer:
(1) the product nutrient is even, good water solubility, and the fertilizer efficiency height can be produced high nitrogen compound fertilizer.
(2) utilize high tower prilling, integrate granulation, drying, cool off, simplified Production Flow Chart, and can directly utilize the urea or ammonium nitrate (ammonium nitrate phosphorus) melt of production system.
(3) the product particle smooth surface, mellow and full, moisture is low, and an aperture is arranged on the particle is natural anti-false sign, has the higher market competitiveness;
(4) good operational environment, three-waste free discharge belongs to process for cleanly preparing.
The gordian technique that tower granulation is produced compound fertilizer is a pulping process for mixed, not only can't flow in pipeline when composite fertilizer slip viscosity is very big, more can't pass through the shower nozzle granulation.Existing tower granulation is produced the composite fertilizer method, mainly has following defective:
(1) slip viscosity is big, and easily layering in mixing device is easily stopped up in pipeline, easily stops up prilling spry.
(2) generation of slip bubble is many, and volumetric expansion is fast, very easily emits pot, and easy " scabbing ".
(3) slip is mobile poor, and product abnormity grain is many.
(4) can't produce low nitrogen or high phosphorus specification compound fertilizer, because its slip viscosity is bigger.
Summary of the invention
A kind of viscosity that can reduce the composite fertilizer slip that the objective of the invention is to overcome above-mentioned shortcoming and provide, reduce the bubble generation, improve the flowability of slip, prevent that prilling spry from stopping up, make tower granulation production can stablize the normal additive that is used for the composite fertilizer tower granulation of operation continuously.
A kind of additive that is used for the composite fertilizer tower granulation of the present invention, wherein: this additive SODIUMNITRATE, its add-on are the 1/100-1/3 of composite fertilizer slip weight.
Above-mentioned a kind of additive that is used for the composite fertilizer tower granulation, wherein: preferred add-on is 1/60-1/10.More preferably add-on is 1/30-1/15.
Above-mentioned a kind of additive that is used for the composite fertilizer tower granulation, wherein: described composite fertilizer is urine base or nitro compound fertilizer material.
Above-mentioned a kind of additive that is used for the composite fertilizer tower granulation, wherein: described fertilizer is nitrogen phosphorus potassium ternary compound fertilizer material, nitrogen phosphorus binary compound fertilizer material or nitrogen-potassium binary compound fertilizer material.
Above-mentioned a kind of additive that is used for the composite fertilizer tower granulation, wherein: the composite fertilizer slip is meant the fusion fertilizer slurry that obtains after the composite fertilizer raw materials melt that is used for tower granulation production.
The present invention compared with prior art has tangible beneficial effect, as can be known from the above technical solutions, SODIUMNITRATE is joined in the composite fertilizer slip of melting mixing device, and behind the thorough mixing, the mixed slurry of gained enters the granulation of cat head tablets press.Utilize the additive SODIUMNITRATE to reduce the viscosity of composite fertilizer slip, reduce the bubble generation, improve the flowability of slip, thereby prevent that prilling spry from stopping up, make tower granulation production can stablize normally operation continuously.The experiment proved that: do not adopt the every work of this additive prilling spry will stop up once in about 2 hours in the production process of existing tower granulation production composite fertilizer, after adopting this additive, the about 1-2 talent of prilling spry work has latch up phenomenon takes place, thereby has realized the operation of production steady and continuous.
Embodiment
Embodiment 1:
Getting urea-base composite fertilizer material slip (specification of slip is 22-10-10) 300kg, SODIUMNITRATE 12kg and returning charge joins in the mixing device; thorough mixing is made mixed slurry; mixed slurry is by the granulation of cat head tablets press; the granulation material obtains the qualified particle of about 1-4mm by screening; this qualified particle enters the face powder machine again to be prevented obtaining qualified product after caking is handled; return mixing device as returning charge together after fine powder material after the screening and the macrobead fragmentation; this product is the granular nitrogen PK compound fertilizer, contains N 21.9%, P
2O
59.7%, K
2O 9.6%, H
2O 0.51%, granule strength 20.4N.
Embodiment 2
Getting urea-base composite fertilizer material slip (specification of slip is 27-16-0) 300kg, SODIUMNITRATE 100kg and returning charge joins in the mixing device; thorough mixing is made mixed slurry; mixed slurry is by the granulation of cat head tablets press; the granulation material obtains the qualified particle of about 1-4mm by screening; this qualified particle enters the face powder machine again to be prevented obtaining qualified product after caking is handled; return mixing device as returning charge together after fine powder material after the screening and the macrobead fragmentation; this product is the granular nitrogen PK compound fertilizer, contains N 25.5%, P
2O
512.1%, K
2O 0, H
2O 0.67%, granule strength 18.7N.
Embodiment 3
Getting urea-base composite fertilizer material slip (specification of slip is 19-0-19) 300kg, SODIUMNITRATE 3kg and returning charge joins in the mixing device; thorough mixing is made mixed slurry; mixed slurry is by the granulation of cat head tablets press; the granulation material obtains the qualified particle of about 1-4mm by screening; this qualified particle enters the face powder machine again to be prevented obtaining qualified product after caking is handled; return mixing device as returning charge together after fine powder material after the screening and the macrobead fragmentation; this product is the granular nitrogen PK compound fertilizer, contains N 19.0%, P
2O
50, K
2O18.8%, H
2O0.72%, granule strength 16.4N.
Embodiment 4
Getting nitro compound fertilizer material slip (specification of slip is 28-11-11) 300kg, SODIUMNITRATE 18kg and returning charge joins in the mixing device; thorough mixing is made mixed slurry; mixed slurry is by the granulation of cat head tablets press; the granulation material obtains the qualified particle of about 1-4mm by screening; this qualified particle enters the face powder machine again to be prevented obtaining qualified product after caking is handled; return mixing device as returning charge together after fine powder material after the screening and the macrobead fragmentation; this product is the granular nitrogen PK compound fertilizer, contains N 27.4%, P
2O
510.4%, K
2O10.5%, H
2O0.65%, granule strength 14.1N.
Embodiment 5
Getting nitro compound fertilizer material slip (specification of slip is 17-17-17) 300kg, SODIUMNITRATE 15kg and returning charge joins in the mixing device; thorough mixing is made mixed slurry; mixed slurry is by the granulation of cat head tablets press; the granulation material obtains the qualified particle of about 1-4mm by screening; this qualified particle enters the face powder machine again to be prevented obtaining qualified product after caking is handled; return mixing device as returning charge together after fine powder material after the screening and the macrobead fragmentation; this product is the granular nitrogen PK compound fertilizer, contains N17.2%, P
2O
516.2%, K
2O16.1%, H
2O0.83%, granule strength 15.8N.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (6)
1. additive that is used for the composite fertilizer tower granulation, it is characterized in that: this additive SODIUMNITRATE, its add-on are the 1/100-1/3 of composite fertilizer slip weight.
2. a kind of additive that is used for the composite fertilizer tower granulation as claimed in claim 1 is characterized in that: add-on is 1/60-1/10.
3. a kind of additive that is used for the composite fertilizer tower granulation as claimed in claim 1 or 2 is characterized in that: add-on is 1/30-1/15.
4. a kind of additive that is used for the composite fertilizer tower granulation as claimed in claim 3 is characterized in that: described composite fertilizer is urine base or nitro compound fertilizer material.
5. a kind of additive that is used for the composite fertilizer tower granulation as claimed in claim 4 is characterized in that: described fertilizer is nitrogen phosphorus potassium ternary compound fertilizer material, nitrogen phosphorus binary compound fertilizer material or nitrogen-potassium binary compound fertilizer material.
6. a kind of additive that is used for the composite fertilizer tower granulation as claimed in claim 5 is characterized in that: the composite fertilizer slip is meant the fusion fertilizer slurry that obtains after the composite fertilizer raw materials melt that is used for tower granulation production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106086436A CN102020513A (en) | 2010-12-28 | 2010-12-28 | Additive for tower-type pelletizing of compound fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106086436A CN102020513A (en) | 2010-12-28 | 2010-12-28 | Additive for tower-type pelletizing of compound fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102020513A true CN102020513A (en) | 2011-04-20 |
Family
ID=43862337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106086436A Pending CN102020513A (en) | 2010-12-28 | 2010-12-28 | Additive for tower-type pelletizing of compound fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102020513A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850124A (en) * | 2012-09-04 | 2013-01-02 | 深圳市芭田生态工程股份有限公司 | Sulphate-potassium magnesium fertilizer and preparation method thereof |
| CN104692879A (en) * | 2015-03-20 | 2015-06-10 | 路永宽 | Method of producing water soluble ammonium phosphor nitrate through disc granulation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398826A (en) * | 2001-07-19 | 2003-02-26 | 俞政 | Low-temperature melt process of producing granulated azophoska |
| CN1448374A (en) * | 2003-02-12 | 2003-10-15 | 川化股份有限公司 | Tower nitro compound fertilizer |
| CN1752056A (en) * | 2004-12-31 | 2006-03-29 | 深圳市芭田生态工程股份有限公司 | A kind of tower type granulation produces the method of granular compound fertilizer |
-
2010
- 2010-12-28 CN CN2010106086436A patent/CN102020513A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398826A (en) * | 2001-07-19 | 2003-02-26 | 俞政 | Low-temperature melt process of producing granulated azophoska |
| CN1448374A (en) * | 2003-02-12 | 2003-10-15 | 川化股份有限公司 | Tower nitro compound fertilizer |
| CN1752056A (en) * | 2004-12-31 | 2006-03-29 | 深圳市芭田生态工程股份有限公司 | A kind of tower type granulation produces the method of granular compound fertilizer |
Non-Patent Citations (2)
| Title |
|---|
| 吴密: "《化肥生产核心技术、工艺流程与质量检测标准实施手册 第3册》", 31 December 2002, 电子工业出版社 * |
| 杜廷军等: "表面活性剂在高塔造粒复混肥防结块中的应用", 《磷肥与复肥》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850124A (en) * | 2012-09-04 | 2013-01-02 | 深圳市芭田生态工程股份有限公司 | Sulphate-potassium magnesium fertilizer and preparation method thereof |
| CN102850124B (en) * | 2012-09-04 | 2015-03-04 | 深圳市芭田生态工程股份有限公司 | Sulphate-potassium magnesium fertilizer and preparation method thereof |
| CN104692879A (en) * | 2015-03-20 | 2015-06-10 | 路永宽 | Method of producing water soluble ammonium phosphor nitrate through disc granulation |
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| PB01 | Publication | ||
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Application publication date: 20110420 |