CN105254394A - Novel compound fertilizer production process - Google Patents
Novel compound fertilizer production process Download PDFInfo
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- CN105254394A CN105254394A CN201510594816.6A CN201510594816A CN105254394A CN 105254394 A CN105254394 A CN 105254394A CN 201510594816 A CN201510594816 A CN 201510594816A CN 105254394 A CN105254394 A CN 105254394A
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- compound fertilizer
- raw material
- fertilizer production
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- phosphoric acid
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Abstract
The invention discloses a novel compound fertilizer production process. The novel compound fertilizer production process comprises the following procedures: batching of raw materials; stirring of the raw materials; granulation of the raw materials; cooling of particles; dust collection of the particles; grading of the particles; coating of a finished product; packaging of the finished product; etc. The process is characterized in that in the procedure of batching of the raw materials, urea, monoammonium phosphate and potassium chloride are used as the raw materials; and in the procedure of granulation of the raw materials, a binder composed of magnesium oxide powder and a phosphoric acid solution is added into a granulator in proportion. Compared with the prior art, the invention has the following advantages: the compound fertilizer production process is simplified; compound fertilizer production efficiency is improved; equipment cost is reduced; energy consumption is lowered; and environmental pollution is decreased.
Description
Technical field
The invention belongs to composite fertilizer's technical field, be specifically related to a kind of new type compound fertilizer production technique.
Background technology
Traditional compound fertilizer production technology, mainly comprises feed proportioning, raw material stirring, raw material granulation, particle oven dry, particle cooling, gradation, finished product coating, finished product packing etc.Wherein, steam boiler is needed to heat at raw material pelletization stage, to realize the smooth granulation process of raw material; In the heating of particle baking stage roasting kiln, the moisture that particle includes is dried, to increase granule strength, be convenient to preserve.This makes traditional compound fertilizer production technology, and energy consumption is larger.Utilize traditional compound fertilizer production technology simultaneously, also need to dry and particle cooling at particle, set up vent gas treatment and system of giving a dinner of welcome, to prevent contaminate environment.This makes traditional compound fertilizer production technology system, and comparatively complicated, equipment cost is higher.
At present; also have and adopt sour method explained hereafter composite fertilizer; granulation temperature of charge is risen to preferably prilling temperature 75-85 DEG C by this technology utilization liquefied ammonia and the chemical reaction heat of the raw material such as sulfuric acid, monoammonium phosphate in tablets press between rapid reaction; the water vapour that reaction generates and the unreacted ammonia of small portion are evacuated to spray washing case through four washings by exhaust fan, then emptying from chimney.Alleviate oven dry load in this process, saved the energy, saved coal consumption, make the plant capacity of same size improve more than 50%.This is in the saving energy, raw materials consumption, and improving the aspects such as work efficiency has important meaning.But the feed rate due to liquefied ammonia needs to control, thus need the cost increasing control device; And chemical reaction velocity between liquefied ammonia and the raw material such as sulfuric acid, monoammonium phosphate is fast, heat distribution can be made uneven, and this can reduce balling ratio, and the heat simultaneously generated can make liquefied ammonia convert ammonia to rapidly, this just needs to increase corresponding exhaust gas processing device, makes system and device complicated.
Summary of the invention
The object of this invention is to provide a kind of new type compound fertilizer production technology; utilize in the granulation link of composite heat transfer; add chemical reaction velocity each other comparatively gentle; and reaction product not only emission-free release but also the Chemical Felter of composite fertilizer's fertilizer efficiency can be increased; to realize alleviating oven dry load; energy efficient, reduces compound fertilizer production technology link, reduces the object of production unit cost.
For achieving the above object, the present invention adopts following technical scheme:
The invention provides a kind of new type compound fertilizer production technology, be made up of the process links such as feed proportioning, raw material stirring, raw material granulation, particle cools, particle gathers dust, gradation, finished product coating, finished product packing, it is characterized in that: in described feed proportioning process links, raw material used is urea, monoammonium phosphate, Repone K; In described raw material granulating working procedure link, in tablets press, add the binding agent be made up of magnesia powder and phosphoric acid solution by a certain percentage.
Further, in described feed proportioning process links, raw material used is urea, the 11%N44%P of 46%N
2o
5monoammonium phosphate, 60%K
2the Repone K of O, its corresponding number is followed successively by 43 parts, 30 parts, 17 parts; In described raw material granulating working procedure link, the binding agent added is magnesia powder and the 85%H of 82%MgO
3pO
4phosphoric acid solution, wherein the number of magnesia powder is 8 ~ 15, and the number of phosphoric acid solution is 3 ~ 6.
Further, in described raw material granulating working procedure link, the binding agent added is magnesia powder and the 85%H of 82%MgO
3pO
4phosphoric acid solution, wherein the number of magnesia powder is 12, and the number of phosphoric acid solution is 5.
Principle of work of the present invention: in the granulation link of composite heat transfer, adding binding agent is magnesia powder and phosphoric acid solution, adds easily, and amount easily controls, and its chemical reaction velocity each other in tablets press is comparatively gentle lasting, the balling ratio being conducive to granulation improves; Reaction can produce certain heat, can save particle and dry link; Before the reaction, all emission-free release, can save vent gas treatment link.
Beneficial effect of the present invention comprises:
1, simplify compound fertilizer production technology flow process, decrease equipment cost;
2, the heat utilizing reaction to generate, saves particle and dries link, decrease energy consumption;
3, whole production process is without waste gas, poisonous exhaust emissions, reduces environmental pollution;
4, balling ratio obtains further raising, can reach 90%.
Embodiment
Be clearly and completely described below with reference to the technique effect of embodiment 1 to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.Apparently, the embodiment in the following describes is only a part of the present invention, and based on embodiments of the invention, other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of protection of the invention.
Embodiment 1
A kind of new type compound fertilizer production technology, be made up of the process links such as feed proportioning, raw material stirring, raw material granulation, particle cools, particle gathers dust, gradation, finished product coating, finished product packing, it is characterized in that: in described feed proportioning process links, raw material used is urea, monoammonium phosphate, Repone K; In described raw material granulating working procedure link, in tablets press, add the binding agent be made up of magnesia powder and phosphoric acid solution by a certain percentage.
Further, in described feed proportioning process links, raw material used is urea, the 11%N44%P of 46%N
2o
5monoammonium phosphate, 60%K
2the Repone K of O, its corresponding number is followed successively by 43 parts, 30 parts, 17 parts; In described raw material granulating working procedure link, the binding agent added is magnesia powder and the 85%H of 82%MgO
3pO
4phosphoric acid solution, wherein the number of magnesia powder is 8 ~ 15, and the number of phosphoric acid solution is 3 ~ 6.
Further, in described raw material granulating working procedure link, the binding agent added is magnesia powder and the 85%H of 82%MgO
3pO
4phosphoric acid solution, wherein the number of magnesia powder is 12, and the number of phosphoric acid solution is 5.
Claims (3)
1. a new type compound fertilizer production technique, be made up of the process links such as feed proportioning, raw material stirring, raw material granulation, particle cools, particle gathers dust, gradation, finished product coating, finished product packing, it is characterized in that: in described feed proportioning process links, raw material used is urea, monoammonium phosphate, Repone K; In described raw material granulating working procedure link, in tablets press, add the binding agent be made up of magnesia powder and phosphoric acid solution by a certain percentage.
2. a kind of new type compound fertilizer production technique according to claim 1, is characterized in that: in described feed proportioning process links, raw material used is urea, the 11%N44%P of 46%N
2o
5monoammonium phosphate, 60%K
2the Repone K of O, its corresponding number is followed successively by 43 parts, 30 parts, 17 parts.
3. a kind of new type compound fertilizer production technique according to claim 1, it is characterized in that: in described raw material granulating working procedure link, the binding agent added is the magnesia powder of 82%MgO and the phosphoric acid solution of 85%H3PO4, wherein the number of magnesia powder is 8 ~ 15, and the number of phosphoric acid solution is 3 ~ 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510594816.6A CN105254394A (en) | 2015-09-18 | 2015-09-18 | Novel compound fertilizer production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510594816.6A CN105254394A (en) | 2015-09-18 | 2015-09-18 | Novel compound fertilizer production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105254394A true CN105254394A (en) | 2016-01-20 |
Family
ID=55094395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510594816.6A Pending CN105254394A (en) | 2015-09-18 | 2015-09-18 | Novel compound fertilizer production process |
Country Status (1)
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| CN (1) | CN105254394A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045653A (en) * | 2016-04-07 | 2016-10-26 | 广东丰康生物科技有限公司 | Production process and preparation method for ecological composite fertilizer |
| CN108264396A (en) * | 2017-10-18 | 2018-07-10 | 锦西天然气化工有限责任公司 | A kind of composite heat transfer system and its production technology |
-
2015
- 2015-09-18 CN CN201510594816.6A patent/CN105254394A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045653A (en) * | 2016-04-07 | 2016-10-26 | 广东丰康生物科技有限公司 | Production process and preparation method for ecological composite fertilizer |
| CN108264396A (en) * | 2017-10-18 | 2018-07-10 | 锦西天然气化工有限责任公司 | A kind of composite heat transfer system and its production technology |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160120 |