CN104058813A - Production process for sulfenyl nitrogen phosphorus and potassium - Google Patents
Production process for sulfenyl nitrogen phosphorus and potassium Download PDFInfo
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- CN104058813A CN104058813A CN201410250598.XA CN201410250598A CN104058813A CN 104058813 A CN104058813 A CN 104058813A CN 201410250598 A CN201410250598 A CN 201410250598A CN 104058813 A CN104058813 A CN 104058813A
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Abstract
The invention relates to a production process for sulfenyl nitrogen phosphorus and potassium. The production process comprises the following steps of: feeding potassium chloride into a conversion slot by a conveyor, conveying generated KHSO4 liquor into an acid mixing slot by overflowing, adding phosphoric acid cleaning liquor for pumping into a pre-neutralizing slot; by virtue of ammonia-ventilating neutralization reaction, pumping generated slurry into a pelletizing tubular reactor, further ventilating ammonia to complete neutralization reaction, spraying on a rolling material bed of a pelletizing machine by a slurry distributor, generating NPK (nitrogen, phosphorus and potassium) solid materials by coating, bonding and less self-granulating, taking finished product particles after drying and two-stage screening, supplementing nitrogen for finished product particles by an urea spraying barrel, sieving by a precision sieve after packaging oil powder and coating film by a packaging barrel, and conveying most of 2-4 mm particles as finished products for packaging. The production process disclosed by the invention can solve problems that material potassium chloride is caked, amount of potassium chloride entering the conversion slot is not stable and great in fluctuation as the conveyor is frequently plugged and blocked by uneven moisture content, and product nutrient change is directly affected, and the like; and a wide-side adhesive tape conveyor is used, so that the potassium adding amount is very stable, and product potassium nutrient is relatively stable.
Description
Technical field
The present invention relates to a kind of production field of nitrogen phosphorus potassium, particularly relate to a kind of production technique of sulfenyl nitrogen-phosphorus-potassium.
Background technology
At present, on market, major part is to be raw material by Repone K production technique is produced nitrogen phosphorus potassium, and this technique has than general directly to be introduced potassium nutrition with commodity potassium sulfate to produce the explained hereafter cost of sulfur ternary composite fertilizer low, the features such as product nutrient equilibrium.In prior art, disclosing is a lot the technology contents of raw material production nitrogen phosphorus potassium about Repone K, but produce in the process of this kind of explained hereafter, in throwing potassium operation, often occur that raw material Repone K lumps, water content is unbalanced, the problems such as Repone K amount is unstable, thus cause the throughput of nitrogen phosphorus potassium to reduce, add the production cost of large enterprises.
Summary of the invention
The object of this invention is to provide a kind of production technique of sulfenyl nitrogen-phosphorus-potassium, the problems such as Repone K lumps, the amount of input is unstable that it can solve, improve the throughput of enterprise, reduce production costs.
In order to realize foregoing invention object, the present invention has adopted following technical scheme:
Repone K is sent into conversion tank by transfer roller, under heated condition, in conversion tank, carry out conversion reaction, the KHSO of generation with the vitriol oil
4solution overflow enters nitration mixture groove, add phosphoric acid washing liquid at this, the nitration mixture forming after mixing, pumping enters pre-neutralization groove, through logical ammonia neutralization reaction, the slip generating enters granulation tubular reactor through pumping, at this further logical ammonia, complete neutralization reaction, the slip reacting completely is sprayed at by the shower nozzle of slip sparger on the material bed of tablets press rolling, through coating, bonding and on a small quantity from granulating, the NPK solid materials generating, drying, two-stage screening, get finished product particle and mend nitrogen through spray urine cylinder successively, after parcel cylinder parcel oil-bound distemper coating, fine screen screening, 2-4mm finished product is sent to packaging, other particles and part finished product are delivered to tablets press as returning charge after mixing and are done masterbatch, what granulation process and drying process produced contains ammonia, NPK dust tail gas is through whirlwind dry method dust, two-stage Venturi and the wet scrubbing of one-level washing tower, the invention is characterized in that described transfer roller is broadside rubber conveyer.
The present invention can solve raw material Repone K caking, the unbalanced transfer roller frequent jams of water content, stuck, cause and enter conversion tank Repone K amount shakiness, fluctuation is large, directly affect the problems such as product nutrient variation, use broadside rubber conveyer, can make to throw potassium amount highly stable, product potassium nutrition is more stable.
As a further improvement on the present invention, the granulation zone to tablets press and polishing area subregion are adjusted, and increase polishing area subregion, produce the sulfenyl nitrogen-phosphorus-potassium of high-quality, improve product appearance.
As a further improvement on the present invention, the liner of spray urine cylinder uses 304 thin plates.Be not easy to be out of shape aging, scab, reduce cleaning work amount large, improve the stability of product nitrogen content.
Embodiment
Repone K is sent into conversion tank by transfer roller, under heated condition, in conversion tank, carry out conversion reaction, the KHSO of generation with the vitriol oil
4solution overflow enters nitration mixture groove, add phosphoric acid washing liquid at this, the nitration mixture forming after mixing, pumping enters pre-neutralization groove, through logical ammonia neutralization reaction, the slip generating enters granulation tubular reactor through pumping, at this further logical ammonia, complete neutralization reaction, the slip reacting completely is sprayed at by the shower nozzle of slip sparger on the material bed of tablets press rolling, through coating, bonding and on a small quantity from granulating, the NPK solid materials generating, drying, two-stage screening, get finished product particle and mend nitrogen through spray urine cylinder successively, after parcel cylinder parcel oil-bound distemper coating, fine screen screening, 2-4mm finished product is sent to packaging, other particles and part finished product are delivered to tablets press as returning charge after mixing and are done masterbatch, what granulation process and drying process produced contains ammonia, NPK dust tail gas is through whirlwind dry method dust, two-stage Venturi and the wet scrubbing of one-level washing tower, the invention is characterized in that described transfer roller is broadside rubber conveyer.The granulation zone of tablets press and polishing area subregion are adjusted, and increase polishing area subregion, produce the sulfenyl nitrogen-phosphorus-potassium of high-quality, improve product appearance.In order to improve the factor such as stability of product nitrogen content, the liner of spray urine cylinder is used to 304 thin plates.
Claims (3)
1. a production technique for sulfenyl nitrogen-phosphorus-potassium, comprises Repone K is sent into conversion tank by transfer roller, carries out conversion reaction, the KHSO of generation with the vitriol oil under heated condition in conversion tank
4solution overflow enters nitration mixture groove, add phosphoric acid washing liquid at this, the nitration mixture forming after mixing, pumping enters pre-neutralization groove, through logical ammonia neutralization reaction, the slip generating enters granulation tubular reactor through pumping, at this further logical ammonia, complete neutralization reaction, the slip reacting completely is sprayed at by the shower nozzle of slip sparger on the material bed of tablets press rolling, through coating, bonding and on a small quantity from granulating, the NPK solid materials generating, drying, two-stage screening, get finished product particle and mend nitrogen through spray urine cylinder successively, after parcel cylinder parcel oil-bound distemper coating, fine screen screening, the particle of most of 2-4mm is sent to packaging as finished product, other particles and part finished product are delivered to tablets press as returning charge after mixing and are done masterbatch, what granulation process and drying process produced contains ammonia, NPK dust tail gas is through whirlwind dry method dust, two-stage Venturi and the wet scrubbing of one-level washing tower, it is characterized in that described transfer roller is broadside rubber conveyer.
2. the production technique of sulfenyl nitrogen-phosphorus-potassium according to claim 1, it is characterized in that to described tablets press carry out subregion adjustment, increase polishing area subregion.
3. the production technique of sulfenyl nitrogen-phosphorus-potassium according to claim 1, is characterized in that described spray urine cylinder has liner, liner to use 304 thin plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250598.XA CN104058813A (en) | 2014-06-06 | 2014-06-06 | Production process for sulfenyl nitrogen phosphorus and potassium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250598.XA CN104058813A (en) | 2014-06-06 | 2014-06-06 | Production process for sulfenyl nitrogen phosphorus and potassium |
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| CN104058813A true CN104058813A (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410250598.XA Pending CN104058813A (en) | 2014-06-06 | 2014-06-06 | Production process for sulfenyl nitrogen phosphorus and potassium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484246A (en) * | 2018-05-29 | 2018-09-04 | 云南祥丰金麦化工有限公司 | A kind of prilling process producing chemical fertilizer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648713A (en) * | 2009-07-23 | 2010-02-17 | 瓮福（集团）有限责任公司 | Method for producing granular ammonium sulfate |
| CN102351588A (en) * | 2011-07-05 | 2012-02-15 | 山东聊城鲁西化工第五化肥有限公司 | Production method of novel chemically synthesized ammoniated sulfur-base composite fertilizer |
| CN103420699A (en) * | 2013-07-31 | 2013-12-04 | 安徽省司尔特肥业股份有限公司 | Device for preparing sulfur-based compound fertilizer |
-
2014
- 2014-06-06 CN CN201410250598.XA patent/CN104058813A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648713A (en) * | 2009-07-23 | 2010-02-17 | 瓮福（集团）有限责任公司 | Method for producing granular ammonium sulfate |
| CN102351588A (en) * | 2011-07-05 | 2012-02-15 | 山东聊城鲁西化工第五化肥有限公司 | Production method of novel chemically synthesized ammoniated sulfur-base composite fertilizer |
| CN103420699A (en) * | 2013-07-31 | 2013-12-04 | 安徽省司尔特肥业股份有限公司 | Device for preparing sulfur-based compound fertilizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484246A (en) * | 2018-05-29 | 2018-09-04 | 云南祥丰金麦化工有限公司 | A kind of prilling process producing chemical fertilizer |
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Application publication date: 20140924 |