CN102020513A - Additive for tower-type pelletizing of compound fertilizer - Google Patents
Additive for tower-type pelletizing of compound fertilizer Download PDFInfo
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- 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
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- compound fertilizer
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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 |
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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 | Method of producing granular composite fertilizer using tower pelletizing |
-
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 | Method of producing granular composite fertilizer using tower pelletizing |
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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Application publication date: 20110420 |