CN103011981A - Phosphorus-potassium granular compound fertilizer and preparation method thereof - Google Patents
Phosphorus-potassium granular compound fertilizer and preparation method thereof Download PDFInfo
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- CN103011981A CN103011981A CN2012105919259A CN201210591925A CN103011981A CN 103011981 A CN103011981 A CN 103011981A CN 2012105919259 A CN2012105919259 A CN 2012105919259A CN 201210591925 A CN201210591925 A CN 201210591925A CN 103011981 A CN103011981 A CN 103011981A
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Abstract
The invention is suitable for the field of agricultural fertilizers and provides a phosphorus-potassium granular compound fertilizer and a preparation method thereof. The phosphorus-potassium granular compound fertilizer contains mixture of sylvite and phosphate, stuffing and microelements. According to the phosphorus-potassium granular compound fertilizer and the preparation method thereof, the stuffing is taken as an additive, due to the agglutinating value of the stuffing, the phosphorus-potassium granular compound fertilizer has good strength, meanwhile, and the stuffing can serve as a cosolvent for dissolving the phosphorus-potassium granular compound fertilizer, so that the dissolving property of the phosphorus-potassium granular compound fertilizer is greatly improved. The phosphorus-potassium granular compound fertilizer is produced by an extrusion process, the production process is simple, the rate of finished products is improved, the manpower is little, the energy consumption is low, and the environment is protected.
Description
Technical field
The invention belongs to technical field of fertilizers, relate in particular to multiple fertilizer of a kind of phosphorus potassium grain and preparation method thereof.
Background technology
At present; rotary drum granulator or granulating disc are adopted in the production of nitrogenous fertilizer, phosphate fertilizer or potash fertilizer usually; with granulating method technique, slurry process or high tower explained hereafter, the material after granulation is delivered to the rotary drum dryer drying, gets product through the cooling of the material of super-dry, screening.But because the method can't normally be produced for the above product of potassium oxide content 〉=40%, yield rate is below 30%, and the product of gained does not dissolve, intensity is low, and prepared Ru 2006101161 is used difficulty in agriculture production larger.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art, a kind of Ru 2006101161 is provided, high potassic fertilizer composition dissolves is poor, intensity is low, the technical problem of easy efflorescence to solve prepared the containing of prior art, and the preparation method of this Ru 2006101161.
In order to realize the foregoing invention purpose, technical scheme of the present invention is as follows:
A kind of phosphorus potassium grain is multiple fertile, comprises the component of following weight percentage:
Contain sylvite, phosphatic mixture 80 ~ 98%
Filler 5 ~ 15%
Trace element 0.5 ~ 1%;
Wherein, in the multiple fertilizer of described phosphorus potassium grain, calculate the weight percentage of potassium oxide 〉=40% with potassium oxide.
And the multiple fertile preparation method of a kind of phosphorus potassium grain comprises the steps:
Take by weighing described sylvite, phosphoric acid salt, filler and trace element by the multiple fertile prescription of above-mentioned phosphorus potassium grain;
Mix with water after above-mentioned sylvite, phosphoric acid salt, filler and trace element is broken, the preparating mixture material, wherein, the weight percentage of described water in mixture is 0.5 ~ 5%;
Through extruding, drying, cooling, screening, surface treatment, it is multiple fertile to obtain phosphorus potassium grain with mixture.
Phosphorus potassium grain of the present invention is multiple fertile in to contain sylvite, phosphatic mixture as major ingredient, take filler and trace element as addition material, so that answering fertilizer, this phosphorus potassium grain has good intensity by the cohesiveness of utilizing this filler, this filler can also as the solubility promoter of the multiple fertile dissolving of phosphorus potassium grain, improve the multiple fertile solubility property of phosphorus potassium grain greatly simultaneously; Add trace element and make the multiple fertile component of this phosphorus potassium grain abundant, to satisfy the demand of farm crop picked-up various trace elements.
The multiple fertile preparation method of phosphorus potassium grain of the present invention adopts extrusion process, by using filler, utilize the cohesiveness of this filler so that the multiple fertilizer of the phosphorus potassium grain of this potassium oxide content 〉=40% has good intensity, be difficult for into powder, the multiple fertile solubility property of phosphorus potassium grain is improved greatly; This production technique is simple, yield rate improves, employment is few, energy consumption is low, protection of the environment.
Description of drawings
Fig. 1 is the multiple fertile preparation method's process flow sheet of inventive embodiments phosphorus potassium grain.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the invention provides a kind of phosphorus potassium grain multiple fertile, comprises the component of following weight percentage:
Contain sylvite, phosphatic mixture 80 ~ 98%
Filler 5 ~ 15%
Trace element 0.5 ~ 1%;
Wherein, in the multiple fertilizer of above-mentioned phosphorus potassium grain, calculate the weight percentage of potassium oxide 〉=40% with potassium oxide.
In a preferred embodiment, above-mentioned sylvite and the phosphatic weight ratio that contains in sylvite, the phosphatic mixture is 75 ~ 95:3 ~ 20.
In further preferred embodiment, above-mentioned potash fertilizer is selected from least a in Repone K, the vitriolate of tartar, if when comprising simultaneously above-mentioned two kinds of potash fertilizer, does not have the part by weight restriction between separately.
In further preferred embodiment, above-mentioned phosphate fertilizer is selected from monoammonium phosphate.
Further, above-mentioned phosphorus potassium grain is multiple fertile in potassium oxide calculating, the weight percentage of potassium oxide 〉=40%.Be applicable to high potassium crop; But because sylvite is powdery, cause the easy efflorescence of this Ru 2006101161, intensity low.
In a preferred embodiment, above-mentioned filler is selected from one or both in calcium carbonate, the clay, is preferably clay; The particle diameter of this filler is 200 ~ 300 orders.If this filler comprises two kinds in calcium carbonate, the clay, the weight ratio of this calcium carbonate and clay is 1:2.Wherein, this calcium carbonate and/or clay have excellent viscosity, and the viscosity by calcium carbonate and/or clay increases the multiple fertile intensity of embodiment of the invention phosphorus potassium grain greatly, and intensity reaches more than the 20N; Simultaneously, this calcium carbonate and/or clay can also significantly promote the solvability of Ru 2006101161 as the multiple fertile solubility promoter of phosphorus potassium grain, and the multiple fertilizer of phosphorus potassium grain is mixed with water, and stationary state reaches dissolving more than 98% in lower 10 minutes.Further, above-mentioned clay and yellow bread and the dry powder commonly used at present have very large difference, the viscosity of this clay is more than 5 times of viscosity of this Huang bread/dry powder, can with good being bonded together of various components in the multiple fertilizer of phosphorus potassium grain, the multiple fertile intensity of this phosphorus potassium grain be increased greatly; Simultaneously, this clay can also make the multiple fertile solvability in water of phosphorus potassium grain greatly increase.Therefore, the multiple fertilizer of the phosphorus potassium grain of the embodiment of the invention has good intensity and solvability, when its sylvite that comprises, phosphoric acid salt, filler, micro-weight ratio are 75 ~ 95:3 ~ 20:5 ~ 15:0.5 ~ 1, when especially being 85:8:6:1, effect is very good, is very suitable for agricultural production application.
In a preferred embodiment, this trace element is a kind of special ingredients mixture, the trace element of the crop needs such as copper 100ppm, zinc 200ppm, sulphur 50ppm, iron 100ppm is contained in the inside, use front by the mixture that contains above-mentioned element proportionally with after the raw material of stipulating or auxiliary material mix is come into operation, add this trace element and can make the component of this Fertilizer Combination abundant, to satisfy the demand of farm crop picked-up various trace elements.
Phosphorus potassium grain of the present invention is multiple fertile in to contain sylvite, phosphatic mixture as major ingredient, take filler and trace element as addition material, so that answering fertilizer, this phosphorus potassium grain has good intensity by the cohesiveness of utilizing this filler, this filler can also as the solubility promoter of the multiple fertile dissolving of phosphorus potassium grain, improve the multiple fertile solubility property of phosphorus potassium grain greatly simultaneously; Add trace element and make the multiple fertile component of this phosphorus potassium grain abundant, to satisfy the demand of farm crop picked-up various trace elements.
Correspondingly, the embodiment of the invention further provides the preparation method of above-mentioned Ru 2006101161, comprises the steps:
S01 takes by weighing raw material: take by weighing described sylvite, phosphoric acid salt, filler and trace element by the multiple fertile prescription of described phosphorus potassium grain;
S02, the preparation mixture: mix with water after described sylvite, phosphoric acid salt, filler and trace element is broken, the preparating mixture material, wherein, the weight percentage of water in the first mixture is 0.5 ~ 5%;
S03, preparation phosphorus potassium grain is multiple fertile: through extruding, drying, cooling, screening, surface treatment, it is multiple fertile to obtain phosphorus potassium grain with mixture.
Particularly, among the above-mentioned steps S01, this sylvite, phosphoric acid salt, filler and trace element do not repeat to set forth at this with aforesaid identical.
Particularly, among the above-mentioned steps S02, sylvite, phosphoric acid salt, filler and trace element that step S01 is taken by weighing, through crusher in crushing, send into disk mixing machine uniform stirring by transfer roller and mix, in mixture, add entry simultaneously, continue to stir and make fertilizer material, clay and filler form compound, obtain mixture, the add-on of water is that the weight percentage that makes water account for mixture is 0.5 ~ 5%, is preferably 2%.
Particularly, among the above-mentioned steps S03, the mixture of step S02 preparation is sent into bucket elevator by conveying belt, risen to again 6 meters high material-distributing system granulation depiler by bucket elevator, then assigned to equably each pair roller type Squeezinggranulator in the system, drive pair roller extruding granulating by power, obtain the precursor of Ru 2006101161, granulating rate is more than 70%; Then break up with mace, transported to by transfer roller and send trommel screen to behind the bucket elevator and sieve, bulk goods is transported to the drying machine drying after the screening, and the powdery grain returns again granulation of tablets press, drying temperature is 450 ~ 550 ℃, and blast is ﹣ 300 ~ ﹣ 200Pa, and drying time does not have special requirement; Collecting granules material after dry is sent into cooling cylinder and is made cooling process, and temperature is 58 ~ 62 ℃, and blast is ﹣ 350 ~ ﹣ 250Pa; The material particles that sieves out particle diameter and be 2.0mm ~ 4.0mm enters powder applying machine, obtains the Ru 2006101161 pellet of the embodiment of the invention after the face powder oil spout.Processing condition during extruding are as follows:
Further, screening process behind the above-mentioned cooling step is also collected and will be reached the break process that is back to step S01 greater than the material grain of 4.0mm less than 2.0mm, re-starts production, to realize taking full advantage of of material.
Embodiment of the invention Ru 2006101161 preparation method has following technique effect:
A, yield rate are more than 70%, and existing process yield is below 30%.
B, product moisture hang down 1.2%, product strength is high, dissolving is fast.
D, technological operation are simple, can guarantee continuously normal production, good operational environment, and energy consumption is low.
This technological process of production, simple to operate, energy consumption is low, has saved investment and process cost, and environment is good, and dissolving is fast, intensity is good.
Below in conjunction with specific embodiment above-mentioned Ru 2006101161 preparation method is described in detail.
Embodiment 1
The embodiment of the invention contains the Ru 2006101161 preparation method of high potassium, comprises the steps:
S11: take by weighing monoammonium phosphate, Repone K, clay, trace element with electronic weighing balance, filling a prescription is: it is 4% P that 0-4-48(namely comprises weight percent
2O
5With weight percent be 48% K
2O); The weight proportion of raw material is: (60%) 9 part of monoammonium phosphate, 80 parts in Repone K, 10 parts of clays, trace element (mainly being to contain zinc 200ppm) 1 part.
S12: above-mentioned each component is mixed through crusher in crushing, sending into disk mixing machine uniform stirring by transfer roller mixes, simultaneously add entry in mixture, obtain the first mixture after continuing to stir, the add-on of water is that the weight percentage that makes water account for the first mixture is 0.5%.
S13: the first mixture of step S12 preparation is sent into bucket elevator by conveying belt, risen to again 6 meters high material-distributing system granulation depiler by bucket elevator, then assigned to equably each pair roller type Squeezinggranulator in the system, drive pair roller extruding granulating by power, obtain the precursor of Ru 2006101161; Then break up with mace, transported to by transfer roller and send trommel screen to behind the bucket elevator and sieve, bulk goods is transported to the drying machine drying after the screening, and the powdery grain returns again granulation of tablets press, and drying temperature is 450 ℃, and blast is-300Pa that drying time does not have special requirement; Collecting granules material after dry is sent into cooling cylinder and is made cooling process, and temperature is 48 ℃, and blast is-250Pa; Sieve out less than 2.0mm and reach the break process that is back to step S01 greater than the material grain of 4.0mm, re-start production, particle diameter is that the material particles of 2.0mm ~ 4.0mm enters powder applying machine; Be packaged to be the Ru 2006101161 pellet of the embodiment of the invention after the face powder oil spout.Product appearance is white (true qualities), intensity 〉=20N; 10 minutes stationary state dissolution rate 〉=98%; Various indexs meet GB15063-2009.Assay: 0-4.32-48.01, intensity: 23N, dust: 0.016%.
Embodiment 2
The embodiment of the invention contains the Ru 2006101161 preparation method of high potassium, comprises the steps:
S21: electronic weighing balance takes by weighing monoammonium phosphate, vitriolate of tartar, clay, trace element, and filling a prescription is: it is 4% P that 0-4-48(namely comprises weight percent
2O
5With weight percent be 48% K
2O); The weight proportion of raw material is: (60%) 9 part of monoammonium phosphate, (52%) 80 part of vitriolate of tartar, 10 parts of clays, trace element (batch mixing of Zinc Sulphate Monohydrate 88%) 1 part.
S22: above-mentioned each component is mixed through crusher in crushing, sending into disk mixing machine uniform stirring by transfer roller mixes, simultaneously add entry in mixture, obtain the first mixture after continuing to stir, the add-on of water is that the weight percentage that makes water account for the first mixture is 1.5%.
S13: the first mixture of step S22 preparation is sent into bucket elevator by conveying belt, risen to again 6 meters high material-distributing system granulation depiler by bucket elevator, then assigned to equably each pair roller type Squeezinggranulator in the system, drive pair roller extruding granulating by power, obtain the precursor of Ru 2006101161; Then break up with mace, transported to by transfer roller and send trommel screen to behind the bucket elevator and sieve, bulk goods is transported to the drying machine drying after the screening, and the powdery grain returns again granulation of tablets press, and drying temperature is 550 ℃, and blast is-250Pa that drying time does not have special requirement; Collecting granules material after dry is sent into cooling cylinder and is made cooling process, and temperature is 68 ℃, and blast is-350Pa; Sieve out less than 2.0mm and reach the break process that is back to step S01 greater than the material grain of 4.0mm, re-start production, particle diameter is that the material particles of 2.0mm ~ 4.0mm enters powder applying machine; Be packaged to be the Ru 2006101161 pellet of the embodiment of the invention after the face powder oil spout.Product appearance is white (true qualities), intensity 〉=20N; 10 minutes stationary state dissolution rate 〉=98%; Various indexs meet GB15063-2009.Assay: 0-4.32-48.12, intensity: 23N, dust: 0007%.
Embodiment 3
The embodiment of the invention contains the Ru 2006101161 preparation method of high potassium, comprises the steps:
S31: take by weighing monoammonium phosphate, Repone K, calcium carbonate, trace element with electronic weighing balance, filling a prescription is: it is 4% P that 0-4-48(namely comprises weight percent
2O
5With weight percent be 48% K
2O); The weight proportion of raw material is: (60%) 9 part of monoammonium phosphate, 80 parts in Repone K, 10.5 parts in calcium carbonate, 0.5 part of trace element.
S12: above-mentioned each component is mixed through crusher in crushing, sending into disk mixing machine uniform stirring by transfer roller mixes, simultaneously add entry in mixture, obtain the first mixture after continuing to stir, the add-on of water is that the weight percentage that makes water account for the first mixture is 1.3%;
S13: the first mixture of step S12 preparation is sent into bucket elevator by conveying belt, risen to again 6 meters high material-distributing system granulation depiler by bucket elevator, then assigned to equably each pair roller type Squeezinggranulator in the system, drive pair roller extruding granulating by power, obtain the precursor of Ru 2006101161; Then break up with mace, transported to by transfer roller and send trommel screen to behind the bucket elevator and sieve, bulk goods is transported to the drying machine drying after the screening, and the powdery grain returns again granulation of tablets press, and drying temperature is 500 ℃, and blast is-200Pa that drying time does not have special requirement; Collecting granules material after dry is sent into cooling cylinder and is made cooling process, and temperature is 72 ℃, and blast is-300Pa; Sieve out less than 2.0mm and reach the break process that is back to step S01 greater than the material grain of 4.0mm, re-start production, particle diameter is that the material particles of 2.0mm ~ 4.0mm enters powder applying machine; Be packaged to be the Ru 2006101161 pellet of the embodiment of the invention after the face powder oil spout.Product appearance is white (true qualities), intensity 〉=20N; 10 minutes stationary state dissolution rate 〉=98%; Various indexs meet GB15063-2009.Assay: 0-4.15-48.20, intensity: 22N, dust: 0013%.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a phosphorus potassium grain is multiple fertile, comprises the component of following weight fraction content:
Contain sylvite, phosphatic mixture 80 ~ 98%
Filler 5 ~ 15%
Trace element 0.5 ~ 1%;
Wherein, in the multiple fertilizer of described phosphorus potassium grain, calculate the weight percentage of potassium oxide 〉=40% with potassium oxide.
2. phosphorus potassium grain as claimed in claim 1 is multiple fertile, and it is characterized in that: described sylvite, phosphatic weight ratio are 75 ~ 95:3 ~ 20.
3. phosphorus potassium grain as claimed in claim 1 or 2 is multiple fertile, it is characterized in that: described sylvite is at least a in Repone K, the vitriolate of tartar.
4. phosphorus potassium grain as claimed in claim 1 or 2 is multiple fertile, and it is characterized in that: described phosphoric acid salt is monoammonium phosphate.
5. phosphorus potassium grain as claimed in claim 1 or 2 is multiple fertile, and it is characterized in that: described filler is one or both in calcium carbonate, the clay.
6. phosphorus potassium grain as claimed in claim 1 or 2 is multiple fertile, it is characterized in that: the multiple fertile particle diameter of described phosphorus potassium grain is 2.0 ~ 4.0mm.
7. phosphorus potassium grain as claimed in claim 5 is multiple fertile, and it is characterized in that: the particle diameter of described filler is 200 ~ 300 orders.
8. such as the multiple fertile preparation method of phosphorus potassium grain as described in the claim 1 ~ 7, comprise the steps:
Take by weighing described sylvite, phosphoric acid salt, filler and trace element by the multiple fertile prescription of described phosphorus potassium grain;
Mix with water after described sylvite, phosphoric acid salt, filler and trace element is broken, the preparating mixture material, the weight percentage of described water in mixture is 0.5 ~ 5%;
Through extruding, drying, cooling, screening, surface treatment, it is multiple fertile to obtain phosphorus potassium grain with mixture.
9. phosphorus potassium grain as claimed in claim 7 is answered fertile preparation method, it is characterized in that: in the described drying step, dry temperature is 450 ~ 550 ℃, and blast is ﹣ 300 ~ ﹣ 200Pa.
10. such as claim 7 or the multiple fertile preparation method of 8 described phosphorus potassium grains, it is characterized in that in the described cooling step, the temperature of cooling is 58 ~ 62 ℃, blast is ﹣ 350 ~ ﹣ 250Pa.
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| CN201210591925.9A CN103011981B (en) | 2012-12-31 | 2012-12-31 | Phosphorus potassium grain compound fertilizer and preparation method thereof |
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|---|---|---|---|
| CN201210591925.9A CN103011981B (en) | 2012-12-31 | 2012-12-31 | Phosphorus potassium grain compound fertilizer and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948232A (en) * | 2006-03-29 | 2007-04-18 | 上海化工研究院 | Method of tower type pelletizing manufacturing composite mixed fertilizer |
| CN101704694A (en) * | 2009-11-06 | 2010-05-12 | 云南天腾化工有限公司 | Special compound fertilizer for vegetables and fruits |
| CN102584392A (en) * | 2012-01-18 | 2012-07-18 | 九禾股份有限公司 | Manihot esculenta Crantz compound fertilizer and preparation method thereof |
| CN102775216A (en) * | 2012-08-10 | 2012-11-14 | 九禾股份有限公司 | Fertilizer special for eucalyptus and preparation method thereof |
-
2012
- 2012-12-31 CN CN201210591925.9A patent/CN103011981B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948232A (en) * | 2006-03-29 | 2007-04-18 | 上海化工研究院 | Method of tower type pelletizing manufacturing composite mixed fertilizer |
| CN101704694A (en) * | 2009-11-06 | 2010-05-12 | 云南天腾化工有限公司 | Special compound fertilizer for vegetables and fruits |
| CN102584392A (en) * | 2012-01-18 | 2012-07-18 | 九禾股份有限公司 | Manihot esculenta Crantz compound fertilizer and preparation method thereof |
| CN102775216A (en) * | 2012-08-10 | 2012-11-14 | 九禾股份有限公司 | Fertilizer special for eucalyptus and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 戴元发等: "《复合肥料》", 31 December 1986, article "复合肥料的生产工艺", pages: 78 * |
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Effective date of registration: 20160920 Address after: 518000, Guangdong, Baoan District, Songgang Shenzhen River Industrial Zone Patentee after: Batian Ecological Engineering Co., Ltd., Shenzhen Patentee after: GUIZHOU BATIAN ECOLOGICAL ENGINEERING CO., LTD. Address before: 518000, Guangdong, Baoan District, Songgang Shenzhen River Industrial Zone Patentee before: Batian Ecological Engineering Co., Ltd., Shenzhen |