CN103708852B - Simple-substance high content round hollow granular potassium fertilizer and preparation method thereof - Google Patents
Simple-substance high content round hollow granular potassium fertilizer and preparation method thereof Download PDFInfo
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Abstract
<b> Simple-substance high content round hollow granular potassium fertilizer and preparation method thereof, be characterized in: this granular potash fertilizer for the </b><bGreatT.Gre aT.GT proportion meeting Repone K national standard (GB6549-2011) be the </b><bGreatT.Gre aT.GT circular hollow </b><bGreatT.Gre aT.GT simple substance potash fertilizer products of 1.6, wherein </b><bGreatT.Gre aT.GTK
2o</b><bGreatT.Gr eaT.GT≤</b><bGreatT.Gre aT.GT57%, </b><bGreatT.Gre aT.GT or </b><bGreatT.Gre aT.GTK
2o</b><bGreatT.Gr eaT.GT≤</b><bGreatT.Gre aT.GT60%, </b><bGreatT.Gre aT.GT or </b><bGreatT.Gre aT.GTK
2o</b><bGreatT.Gr eaT.GT≤</b><bGreatT.Gre aT.GT61%, </b><bGreatT.Gre aT.GT or K
2o</b><bGreatT.Gr eaT.GT≤</b><bGreatT.Gre aT.GT62.8%</b><b >; This preparation method of </b><bGreatT.Gre aT.GT be in reverberatory furnace by after Repone K 800</b><bGreatT. GreaT.GT DEG C of </b><bGreatT.Gre aT.GT melting through prilling tower sprinkling pelleting, owing to lowering the temperature rapidly in the surface tension effects of melting Repone K and melting Repone K descent, form a kind of circular hollow particle.The Repone K circular granular of present method manufacture has good mobility, and proportion is about 1.6, close with two ammoniums, urea proportion, is convenient to mixing, is more suitable for that to manufacture BB fertile.</b>
Description
Technical field
The present invention relates to a kind of fertilizer, particularly relate to a kind of Simple-substance high content round hollow granular potassium fertilizer, belong to agricultural fertilizer technical field.
Background technology
China is a large agricultural country, and nutrient needed for farm crop is nitrogen, phosphorus, the large element of potassium three mainly.Present stage fertilising has two kinds of major ways.
The first uses composite fertilizer or Chemical Mixed Fertilizer, and be characterized in circular granular, three large elements compounding one, its advantage is that sowing is convenient, even.Its shortcoming is that the Soil structure of various places and farm crop are inconsistent, and the fertilizer of composite integrated is difficult to adapt to, needed for the farm crop of various places, both affected output, and wasted content again.Therefore, developed country seldom uses the fertilizer of composite integrated, and domestic needs amount is also on a declining curve.
The second uses Bulk Blending Fertilizer (BB is fertile), be characterized in nitrogen (urea), phosphorus (two ammoniums), the independent particle of the large element of potassium (particle potassium) three, its advantage is filled a prescription flexibly needed for various places Soil structure and various farm crop, ratio of allocating immediately manufactures Bulk Blending Fertilizer (BB is fertile), its shortcoming is nitrogenous fertilizer urea is circular, phosphate fertilizer two ammonium is circular, potassium fertilizer particle is irregular shape, three kinds of element fertilizer are by after formula blending, because shape is inconsistent and difference in specific gravity causes unevenness of application greatly, also affect output to a certain extent, but content waste reduces.At present, global Bulk Blending Fertilizer (BB is fertile) amount of application increases year by year.
Because Bulk Blending Fertilizer (BB fertile) amount of application increases year by year, granular potash fertilizer also increment thereupon.The granular potash fertilizer used during beginning is import, and within 2003, domestic also beginning produces granular potash fertilizer, no matter is inlet particle potash fertilizer, or domestic granular potash fertilizer, and production technique used is all extruder grain.Because the fusing point of Repone K is 776 DEG C, there is no binding property again.Circular granular fertilizer also makees in exploration in a lot of factory, as all undesirable in disc granulation, cylinder granulation etc., poor product quality (insufficient strength is frangible, and content is low), yields poorly, and substantially all abandons.Extruder grain technology is simple, and facility investment is few, and consume energy also not high, the potassium fertilizer particle produced is all irregular particle, and after Bulk Blending Fertilizer, in fertilising process, suppress the velocity of flow of urea, two ammonium particles, flow velocity is inconsistent causes unevenness of application.The proportion of potash fertilizer is 1.987, the proportion of urea is 1.335, the proportion of two ammoniums is 1.614, and two in ammonium particle containing the nitrogen of 18%, proportion and urea close, so the fertilising of nitrogen, phosphorus is basic close to even, potassium fertilizer particle proportion is maximum, the irregularly shaped velocity of flow suppressing again two ammoniums and urea, in fertilising process, normally potassium fertilizer particle has first been used, and remaining two ammoniums and urea also will continue to execute to broadcast one section, makes the many potassium of the first section, few nitrogen phosphorus, the few potassium of back part or the situation without potassium, many nitrogen phosphorus, to a certain extent because content deviation affects output.
The granulation of melting potash fertilizer needs 780-820 DEG C of high temperature, and under adding hot conditions, granulation is very difficult, up to the present, and the simple substance potash fertilizer melt pelletization technology that the whole world is not also published.
Summary of the invention
The object of the invention is to the problems referred to above solving prior art existence, for irregular, the heavy technical problem of potash fertilizer of the prior art, through repeatedly studying and after great many of experiments, giving a kind of Simple-substance high content round hollow granular potassium fertilizer and preparation method thereof.
This Simple-substance high content round hollow granular potassium fertilizer provided by the invention, K
2o content can reach the high-content circular hollow granular potash fertilizer product of more than 62.8%.Described potassium fertilizer particle outward appearance is that circle has good mobility, and manufactures hollow, alleviates the proportion of potash fertilizer, makes the proportion proportion of potassium fertilizer particle about 1.6, close with two ammoniums, urea proportion, is convenient to mixing, is more suitable for that to manufacture BB fertile.
For achieving the above object, the technical solution used in the present invention is: this Simple-substance high content round hollow granular potassium fertilizer, the proportion being characterized in as meeting Repone K national standard (GB6549-2011) is the circular hollow particulate elemental potash fertilizer products of 1.6, wherein K
2o≤57%, or K
2o≤60%, or K
2o≤61%, or K
2o≤62.8%.
For realizing object of the present invention better, preferred circular hollow particulate elemental potassium product is: raw material: Russia produces Repone K K
2o≤62.8%, domestic Repone K K
2o≤55%, produces Repone K K with Russia
2raw material 30% and the domestic Repone K K of O≤62.8%
2the raw material 70% of O≤55% makes the K meeting Repone K national standard (GB6549-2011)
2o≤57% product.
For realizing object of the present invention better, preferred circular hollow particulate elemental potassium product is: raw material: Russia produces Repone K K
2o≤62.8%, domestic Repone K K
2o≤55%, produces Repone K K with Russia
2raw material 65% and the domestic Repone K K of O≤62.8%
2the raw material 35% of O≤55% makes the K meeting Repone K national standard (GB6549-2011)
2o≤60% product.
For realizing object of the present invention better, preferred circular hollow particulate elemental potassium product configuration is: raw material: Russia produces Repone K K
2o≤62.8%, domestic Repone K K
2o≤55%, produces Repone K K with Russia
2raw material 75% and the domestic Repone K K of O≤62.8%
2the raw material 25% of O≤55% makes the K meeting Repone K national standard (GB6549-2011)
2o≤61% product.
For realizing object of the present invention better, preferred circular hollow particulate elemental potassium product configuration is: raw material: Russia produces Repone K K
2o≤62.8%, produces Repone K K with Russia
2the raw material 100% of O≤62.8% makes the K meeting Repone K national standard (GB6549-2011)
2o≤62.8% product.
The preparation method of this Simple-substance high content round hollow granular potassium fertilizer that the present invention provides, has been characterized in following steps.
(1) with producer gas generator, coal and air-making are caused coal gas, again coal gas is passed into reverberatory furnace combustion melting Repone K to 800 DEG C, preheating Repone K in the high-temperature flue gas access revolving drum discharged by reverberatory furnace, the Repone K after preheating reaches 400 DEG C, then drops into heating and melting in reverberatory furnace.
(2) melting charge slurry is manufactured, Repone K after preheating is added reverberatory furnace high-temperature fusion, melt temperature controls between 780-820 DEG C, enter the insulation of insulation dashpot, then through the continuous sprinkling pelleting of prilling tower, circular according to being formed in surface tension effects particles fall process, particle diameter Φ accounts for more than 95% between 3-5mm, again prilling tower particle is out entered in revolving drum the temperature cooled to applicable packaging, because proportion under solid potassium chloride state is 1.987, after being melt into liquid slip, proportion is 1.6, ventilate in granulation process in prilling tower and cool fast, particle profile rapid solidification is shaped, formation is shunk hollow during internal cooling, be the Simple-substance high content round hollow granular potassium fertilizer that the present invention provides.
The present invention adopts reverberatory furnace high-temperature fusion Repone K, not only manufactures circular granular, the more important thing is manufacture hollow to reduce proportion.Fundamentally overcome irregular particle potash fertilizer in prior art and suppress the velocity of flow of urea, two ammonium particles, cause the problem of unevenness of application, overcome the inaccurate shortcoming of fertilising quantity of potash fertilizer proportion generation bigger than normal.Realize the controlled object of measured soil composition and the required evenly accurately fertilising of cooperation plant-growth completely, accomplish scientific and reasonable, executed as required, saving fertilizer, increasing both production and income, improves the economic benefit of agriculture production fast.
For realizing object of the present invention better, improve the heat utilization efficiency of whole system, high-temperature flue gas after preheating Repone K through pipeline enter in interchanger with fresh air heat exchange, enter in reverberatory furnace after fresh air heat exchange to 180 DEG C, pass into evaporating pot with the high-temperature flue gas after fresh air heat exchange, other fertilizer is produced in devaporation.
For realizing object of the present invention better, improve the heat utilization efficiency of whole system, the heat in the heat that prilling tower produces and revolving drum also passes into evaporating pot with ventilator trunk, and other fertilizer is produced in devaporation.Thus the heat utilization efficiency of whole system can be made to reach more than 80%.
Compared with the irregular potassium fertilizer particle of currently available products, circular hollow granular potash fertilizer beneficial effect of the present invention is.
1, currently available products poor fluidity, product innovation good fluidity of the present invention.
Detection method: available accumulation angle, highly test.
2, currently available products simple substance potassium element is executed before concentrating, and product innovation of the present invention is executed and broadcast evenly.
Detection method: the proportion of contrast three kinds of elements, urea proportion 1.335, two ammonium proportion 1.614, particle potassium proportion 1.987(circular hollow granular potash fertilizer of the present invention proportion 1.6).
Embodiment
Embodiment 1.
Repone K K is produced with Russia
2the raw material 30kg of O≤62.8% and domestic Repone K K
2raw material 70kg heating and melting in reverberatory furnace of O≤55%, through granulation, its process is.
(1) with producer gas generator, coal and air-making are caused coal gas, again coal gas is passed into reverberatory furnace combustion melting Repone K to 800 DEG C, preheating Repone K in the high-temperature flue gas access revolving drum discharged by reverberatory furnace, the Repone K after preheating reaches 400 DEG C, then drops into heating and melting in reverberatory furnace.
(2) melting charge slurry is manufactured, Repone K after preheating is added reverberatory furnace high-temperature fusion, melt temperature controls between 780-820 DEG C, enter the insulation of insulation dashpot, then through the continuous sprinkling pelleting of prilling tower, circular according to being formed in surface tension effects particles fall process, particle diameter Φ accounts for more than 95% between 3-5mm, again prilling tower particle is out entered in revolving drum the temperature cooled to applicable packaging, because proportion under solid potassium chloride state is 1.987, after being melt into liquid slip, proportion is 1.6, ventilate in granulation process in prilling tower and cool fast, particle profile rapid solidification is shaped, formation is shunk hollow during internal cooling, namely the K meeting Repone K national standard (GB6549-2011) is produced
2o≤57% product 100kg.
Embodiment 2.
Repone K K is produced with Russia
2the raw material 65kg of O≤62.8% and domestic Repone K K
2raw material 35kg heating and melting in reverberatory furnace of O≤55%, through granulation, its process is.
(1) with producer gas generator, coal and air-making are caused coal gas, again coal gas is passed into reverberatory furnace combustion melting Repone K to 800 DEG C, preheating Repone K in the high-temperature flue gas access revolving drum discharged by reverberatory furnace, the Repone K after preheating reaches 400 DEG C, then drops into heating and melting in reverberatory furnace.
(2) melting charge slurry is manufactured, Repone K after preheating is added reverberatory furnace high-temperature fusion, melt temperature controls between 780-820 DEG C, enter the insulation of insulation dashpot, then through the continuous sprinkling pelleting of prilling tower, circular according to being formed in surface tension effects particles fall process, particle diameter Φ accounts for more than 95% between 3-5mm, again prilling tower particle is out entered in revolving drum the temperature cooled to applicable packaging, because proportion under solid potassium chloride state is 1.987, after being melt into liquid slip, proportion is 1.6, ventilate in granulation process in prilling tower and cool fast, particle profile rapid solidification is shaped, formation is shunk hollow during internal cooling, namely the K meeting Repone K national standard (GB6549-2011) is produced
2o≤60% product 100kg.
Embodiment 3.
Repone K K is produced with Russia
2the raw material 75kg of O≤62.8% and domestic Repone K K
2raw material 25kg heating and melting in reverberatory furnace of O≤55%, through granulation, its process is.
(1) with producer gas generator, coal and air-making are caused coal gas, again coal gas is passed into reverberatory furnace combustion melting Repone K to 800 DEG C, preheating Repone K in the high-temperature flue gas access revolving drum discharged by reverberatory furnace, the Repone K after preheating reaches 400 DEG C, then drops into heating and melting in reverberatory furnace.
(2) melting charge slurry is manufactured, Repone K after preheating is added reverberatory furnace high-temperature fusion, melt temperature controls between 780-820 DEG C, enter the insulation of insulation dashpot, then through the continuous sprinkling pelleting of prilling tower, circular according to being formed in surface tension effects particles fall process, particle diameter Φ accounts for more than 95% between 3-5mm, again prilling tower particle is out entered in revolving drum the temperature cooled to applicable packaging, because proportion under solid potassium chloride state is 1.987, after being melt into liquid slip, proportion is 1.6, ventilate in granulation process in prilling tower and cool fast, particle profile rapid solidification is shaped, formation is shunk hollow during internal cooling, namely the K meeting Repone K national standard (GB6549-2011) is produced
2o≤61% product 100kg.
Embodiment 4.
Repone K K is produced with Russia
2raw material 100kg heating and melting in reverberatory furnace of O≤62.8%, through granulation, its process is.
(1) with producer gas generator, coal and air-making are caused coal gas, again coal gas is passed into reverberatory furnace combustion melting Repone K to 800 DEG C, preheating Repone K in the high-temperature flue gas access revolving drum discharged by reverberatory furnace, the Repone K after preheating reaches 400 DEG C, then drops into heating and melting in reverberatory furnace.
(2) melting charge slurry is manufactured, Repone K after preheating is added reverberatory furnace high-temperature fusion, melt temperature controls between 780-820 DEG C, enter the insulation of insulation dashpot, then through the continuous sprinkling pelleting of prilling tower, circular according to being formed in surface tension effects particles fall process, particle diameter Φ accounts for more than 95% between 3-5mm, again prilling tower particle is out entered in revolving drum the temperature cooled to applicable packaging, because proportion under solid potassium chloride state is 1.987, after being melt into liquid slip, proportion is 1.6, ventilate in granulation process in prilling tower and cool fast, particle profile rapid solidification is shaped, formation is shunk hollow during internal cooling, namely the K meeting Repone K national standard (GB6549-2011) is produced
2o≤62.8% product 100kg.
Claims (9)
1. a Simple-substance high content round hollow granular potassium fertilizer, the proportion that it is characterized in that for meeting Repone K standard GB/T 6549-2011 is the circular hollow particulate elemental potassium product of 1.6, wherein K
2o>=57%, this Simple-substance high content round hollow granular potassium fertilizer is prepared by following methods:
(1) with producer gas generator, coal and air-making are caused coal gas, again coal gas is passed into reverberatory furnace combustion melting Repone K to 800 DEG C, preheating Repone K in the high-temperature flue gas access revolving drum that reverberatory furnace is discharged, the Repone K after preheating reaches 400 DEG C, then drops into heating and melting in reverberatory furnace;
(2) melting charge slurry is manufactured, Repone K after preheating is added reverberatory furnace high-temperature fusion, melt temperature controls between 780-820 DEG C, enter the insulation of insulation dashpot, then through the continuous sprinkling pelleting of prilling tower, circular according to being formed in surface tension effects particles fall process, particle diameter Φ accounts for more than 95% between 3-5mm, again prilling tower particle is out entered in revolving drum the temperature cooled to applicable packaging, because proportion under solid potassium chloride state is 1.987, after being melt into liquid slip, proportion is 1.6, ventilate in granulation process in prilling tower and cool fast, particle profile rapid solidification is shaped, formation is shunk hollow during internal cooling, be described Simple-substance high content round hollow granular potassium fertilizer.
2. Simple-substance high content round hollow granular potassium fertilizer according to claim 1, the proportion that it is characterized in that for meeting Repone K standard GB/T 6549-2011 is the circular hollow particulate elemental potassium product of 1.6, wherein K
2o>=60%.
3. Simple-substance high content round hollow granular potassium fertilizer according to claim 1, the proportion that it is characterized in that for meeting Repone K standard GB/T 6549-2011 is the circular hollow particulate elemental potassium product of 1.6, wherein K
2o>=61%.
4. Simple-substance high content round hollow granular potassium fertilizer according to claim 1, the proportion that it is characterized in that for meeting Repone K standard GB/T 6549-2011 is the circular hollow particulate elemental potassium product of 1.6, wherein K
2o>=62.8%.
5. Simple-substance high content round hollow granular potassium fertilizer according to claim 1, is characterized in that circular hollow particulate elemental potassium product is: raw material: Russia produces Repone K K
2o>=62.8%, domestic Repone K K
2o>=55%, produces Repone K K with Russia
2raw material 30% and the domestic Repone K K of O>=62.8%
2the raw material 70% of O>=55% makes the K meeting Repone K standard GB/T 6549-2011
2o>=57% product.
6. Simple-substance high content round hollow granular potassium fertilizer according to claim 2, is characterized in that circular hollow particulate elemental potassium product is: raw material: Russia produces Repone K K
2o>=62.8%, domestic Repone K K
2o>=55%, produces Repone K K with Russia
2raw material 65% and the domestic Repone K K of O>=62.8%
2the raw material 35% of O>=55% makes the K meeting Repone K standard GB/T 6549-2011
2o>=60% product.
7. Simple-substance high content round hollow granular potassium fertilizer according to claim 3, is characterized in that circular hollow particle circular hollow particulate elemental potassium product is: raw material: Russia produces Repone K K
2o>=62.8%, domestic Repone K K
2o>=55%, Russia produces Repone K K
2raw material 75% and the domestic Repone K K of O>=62.8%
2the raw material 25% of O>=55% makes the K meeting Repone K standard GB/T 6549-2011
2o>=61% product.
8. Simple-substance high content round hollow granular potassium fertilizer according to claim 4, is characterized in that circular hollow particulate elemental potassium product configuration is: raw material: Russia produces Repone K K
2o>=62.8%, produces Repone K K with Russia
2the raw material 100% of O>=62.8% makes the K meeting Repone K standard GB/T 6549-2011
2o>=62.8% product.
9. the preparation method of Simple-substance high content round hollow granular potassium fertilizer according to claim 1, is characterized in that there are following steps:
(1) with producer gas generator, coal and air-making are caused coal gas; again coal gas is passed into reverberatory furnace combustion melting Repone K to 800 DEG C; preheating Repone K in the high-temperature flue gas access revolving drum that reverberatory furnace is discharged, the Repone K after preheating reaches 400 DEG C, then drops into heating and melting in reverberatory furnace;
(2) melting charge slurry is manufactured, Repone K after preheating is added reverberatory furnace high-temperature fusion, melt temperature controls between 780-820 DEG C, enter the insulation of insulation dashpot, then through the continuous sprinkling pelleting of prilling tower, circular according to being formed in surface tension effects particles fall process, particle diameter Φ accounts for more than 95% between 3-5mm, again prilling tower particle is out entered in revolving drum the temperature cooled to applicable packaging, because proportion under solid potassium chloride state is 1.987, after being melt into liquid slip, proportion is 1.6, ventilate in granulation process in prilling tower and cool fast, particle profile rapid solidification is shaped, formation is shunk hollow during internal cooling, be Simple-substance high content round hollow granular potassium fertilizer,
High-temperature flue gas wherein after preheating Repone K through pipeline enter in interchanger with fresh air heat exchange, enter in reverberatory furnace after fresh air heat exchange to 180 DEG C, pass into evaporating pot with the high-temperature flue gas after fresh air heat exchange, other fertilizer is produced in devaporation;
Prilling tower produce heat and revolving drum in heat pass into evaporating pot with ventilator trunk, other fertilizer is produced in devaporation.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007049182B3 (en) * | 2007-10-13 | 2009-05-14 | Kali-Umwelttechnik Gmbh | Producing potassium-magnesium-fertilizer and filling material, from polymineralic raw potassium salt, comprises e.g. fragmenting dry raw salt by sieving to different fractions and separating to magnetic and non-magnetic fractions |
| CN201620034U (en) * | 2010-02-10 | 2010-11-03 | 吉林市博达钾肥有限公司 | Potassium chloride spherical grain |
| CN101993277A (en) * | 2009-08-18 | 2011-03-30 | 河南财鑫实业化工有限责任公司 | Production process of high tower melt-granulated compound fertilizer |
| CN102633537A (en) * | 2012-04-23 | 2012-08-15 | 马光明 | Method for producing watersoluble potassium sulfate |
| CN102690142A (en) * | 2012-03-28 | 2012-09-26 | 河南力浮科技有限公司 | Method for producing sustained-release granular potassium chloride fertilizer |
| CN102690143A (en) * | 2012-03-28 | 2012-09-26 | 河南力浮科技有限公司 | Method for producing granular potassium chloride |
| CN203112522U (en) * | 2013-01-31 | 2013-08-07 | 衡阳美仑颜料化工有限责任公司 | Potassium chloride crystallizing tank |
-
2013
- 2013-08-12 CN CN201310347978.0A patent/CN103708852B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007049182B3 (en) * | 2007-10-13 | 2009-05-14 | Kali-Umwelttechnik Gmbh | Producing potassium-magnesium-fertilizer and filling material, from polymineralic raw potassium salt, comprises e.g. fragmenting dry raw salt by sieving to different fractions and separating to magnetic and non-magnetic fractions |
| CN101993277A (en) * | 2009-08-18 | 2011-03-30 | 河南财鑫实业化工有限责任公司 | Production process of high tower melt-granulated compound fertilizer |
| CN201620034U (en) * | 2010-02-10 | 2010-11-03 | 吉林市博达钾肥有限公司 | Potassium chloride spherical grain |
| CN102690142A (en) * | 2012-03-28 | 2012-09-26 | 河南力浮科技有限公司 | Method for producing sustained-release granular potassium chloride fertilizer |
| CN102690143A (en) * | 2012-03-28 | 2012-09-26 | 河南力浮科技有限公司 | Method for producing granular potassium chloride |
| CN102633537A (en) * | 2012-04-23 | 2012-08-15 | 马光明 | Method for producing watersoluble potassium sulfate |
| CN203112522U (en) * | 2013-01-31 | 2013-08-07 | 衡阳美仑颜料化工有限责任公司 | Potassium chloride crystallizing tank |
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