CN107986874A - A kind of method of watery fusion technique productions high tower fertilizer - Google Patents
A kind of method of watery fusion technique productions high tower fertilizer Download PDFInfo
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- CN107986874A CN107986874A CN201711384074.XA CN201711384074A CN107986874A CN 107986874 A CN107986874 A CN 107986874A CN 201711384074 A CN201711384074 A CN 201711384074A CN 107986874 A CN107986874 A CN 107986874A
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- Prior art keywords
- high tower
- fertilizer
- technique productions
- watery fusion
- fusion technique
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000004927 fusion Effects 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000004202 carbamide Substances 0.000 claims abstract description 31
- 238000002844 melting Methods 0.000 claims abstract description 27
- 230000008018 melting Effects 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 239000008187 granular material Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000005469 granulation Methods 0.000 claims abstract description 9
- 230000003179 granulation Effects 0.000 claims abstract description 9
- 239000011591 potassium Substances 0.000 claims abstract description 9
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000011574 phosphorus Substances 0.000 claims abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 22
- 239000001103 potassium chloride Substances 0.000 claims description 11
- 235000011164 potassium chloride Nutrition 0.000 claims description 11
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 6
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 6
- 239000006012 monoammonium phosphate Substances 0.000 claims description 6
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 6
- 229910021538 borax Inorganic materials 0.000 claims description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 4
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 4
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 4
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 4
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 4
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 4
- 235000011151 potassium sulphates Nutrition 0.000 claims description 4
- 239000004328 sodium tetraborate Substances 0.000 claims description 4
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 229960001763 zinc sulfate Drugs 0.000 claims description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 4
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 3
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 3
- 239000011609 ammonium molybdate Substances 0.000 claims description 3
- 229940010552 ammonium molybdate Drugs 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 229960001781 ferrous sulfate Drugs 0.000 claims description 2
- 238000005660 chlorination reaction Methods 0.000 claims 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229960003975 potassium Drugs 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of method of watery fusion technique productions high tower fertilizer, include the following steps：Urea, fluxing agent are added in the high tower fusion tank of 100 120 DEG C of temperature, heating melting, is made urea melting liquid；Urea melting liquid is added in high tower mixing channel, adds phosphorus raw material, potassium raw material and auxiliary material, mixes 2 4min, the slurry of 80 100 DEG C of temperature is made；By slurry through high-tower granulation, cooling treatment, is made fertiliser granulates；By fertiliser granulates are screened and the processing of surface anti-caking, product fertilizer is made.The present invention reduces urea melting temperature using fluxing agent, realizes watery fusion, reduces biuret quantum of output, reduces energy consumption, and the high tower fertilizer that anti-caking effect is good, intensity is high is made, and suitable for crops fertilizer, belongs to National agricultural industrialization promotion category.
Description
Technical field
The present invention relates to compound fertilizer preparing technical field, more particularly to a kind of watery fusion technique productions high tower fertilizer
Method.
Background technology
Compound fertilizer production by tower granulation, is one of China's compound fertilizer production technology new technology, it utilizes fast after urea melting
The principle of speed crystallization, heats phosphorus ammonium and mixes by metering and urine, the metering of potassium slurry, then sprayed into by nozzle in high tower, so that
Compound fertilizer granules are produced, this fertilizer has the characteristics that particle is uniform and smooth, has melt-off pore, do not lump.But urea melting temperature
Up to 132 DEG C of degree, steam consumption is big during high-temperature fusion, high energy consumption, and is also easy to produce secondary biuret, and biuret is exceeded to agriculture
Crop causes burn seedlings, and making product, there are hidden danger of quality.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of watery fusion technique productions high tower fertilizer
Method, melting temperature is low, and energy consumption is small, and biuret yield is few.
The present invention proposes a kind of method of watery fusion technique productions high tower fertilizer, includes the following steps：
S1, by urea, fluxing agent add 100-120 DEG C of temperature high tower fusion tank in, heating melting, be made urea melting
Liquid；
S2, add urea melting liquid in high tower mixing channel, adds phosphorus raw material, potassium raw material and auxiliary material, mixes 2-4min,
The slurry of 80-100 DEG C of temperature is made；
S3, by slurry through high-tower granulation, cooling treatment, is made fertiliser granulates；
Wherein, fluxing agent includes potassium chloride, the polyvinyl alcohol water solution of 8-12%.
Preferably, further include and fertiliser granulates are sieved and surface anti-caking in S3, after cooling treatment.
Preferably, the mass ratio of potassium chloride and polyvinyl alcohol water solution is 3-10 in S1:0.1-0.2.
Preferably, the mass ratio of urea and fluxing agent is 100 in S1:3.1-10.2.
Preferably, phosphorus raw material is monoammonium phosphate in S2.
Preferably, potassium raw material is at least one of potassium sulfate, potassium chloride, potassium dihydrogen phosphate in S2.
Preferably, in S2 auxiliary material be copper sulphate, ferrous sulfate, at least one in zinc sulfate, ammonium molybdate, borax and magnesium sulfate
Kind.
Beneficial effect of the present invention：By adding fluxing agent, measuring urea melting temperature reduces up to 10 DEG C, and steam consumption is reduced
15%, product granulating rate is up to 80-90%, particle diameter light circle, and granule strength of the diameter between 2.0-4.0mm reaches more than 15N, and
Secondary biuret quantum of output is more not in production process plus fluxing agent urea melting method quantum of output reduces more than 95%.
The present invention reduces urea melting temperature by using fluxing agent, realizes urea watery fusion, reduces secondary biuret
Quantum of output, while urea melting liquid, phosphorus raw material, potassium raw material and auxiliary material mixing temperature and high-tower granulation temperature are further reduced, subtract
Few energy consumption.The high tower fertilizer that the obtained anti-caking effect of the present invention is good, intensity is high, suitable for crops fertilizer, belongs to National agricultural production
Industryization promotes category.
Embodiment
In the following, technical scheme is described in detail by specific embodiment.
Embodiment 1
The present invention proposes a kind of method of watery fusion technique productions high tower fertilizer, includes the following steps：
S1, by urea, potassium chloride, 8% polyvinyl alcohol water solution add 100 DEG C of temperature high tower fusion tank in, heating
Melting, is made urea melting liquid；
S2, by urea melting liquid add high tower mixing channel in, add monoammonium phosphate, potassium sulfate and copper sulphate, mix
4min, is made the slurry of 80 DEG C of temperature；
S3, by slurry through high-tower granulation, cooling treatment, screening, the processing of surface anti-caking, is made fertiliser granulates.
Embodiment 2
The present invention proposes a kind of method of watery fusion technique productions high tower fertilizer, includes the following steps：
S1, by urea, potassium chloride, 12% polyvinyl alcohol water solution add 120 DEG C of temperature high tower fusion tank in, heating
Melting, is made urea melting liquid；
S2, by urea melting liquid add high tower mixing channel in, add monoammonium phosphate, potassium sulfate, potassium chloride, biphosphate
Potassium, ferrous sulfate, zinc sulfate, ammonium molybdate, borax and magnesium sulfate, mix 2min, and the slurry of 100 DEG C of temperature is made；
S3, by slurry through high-tower granulation, cooling treatment, screening, the processing of surface anti-caking, is made fertiliser granulates.
Embodiment 3
The present invention proposes a kind of method of watery fusion technique productions high tower fertilizer, includes the following steps：
S1, by urea, potassium chloride, 8.5% polyvinyl alcohol water solution add 105 DEG C of temperature high tower fusion tank in, add
Heat fusing, is made urea melting liquid；
S2, by urea melting liquid add high tower mixing channel in, add monoammonium phosphate, potassium chloride, potassium dihydrogen phosphate, borax
And magnesium sulfate, 3.5min is mixed, the slurry of 85 DEG C of temperature is made；
S3, by slurry through high-tower granulation, cooling treatment, screening, the processing of surface anti-caking, is made fertiliser granulates.
Embodiment 4
The present invention proposes a kind of method of watery fusion technique productions high tower fertilizer, includes the following steps：
S1, by urea, potassium chloride, 9.5% polyvinyl alcohol water solution add 115 DEG C of temperature high tower fusion tank in, add
Heat fusing, is made urea melting liquid；
S2, by urea melting liquid add high tower mixing channel in, add monoammonium phosphate, potassium dihydrogen phosphate, zinc sulfate, molybdic acid
Ammonium, mixes 2.5min, and the slurry of 95 DEG C of temperature is made；
S3, by slurry through high-tower granulation, cooling treatment, screening, the processing of surface anti-caking, is made fertiliser granulates.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
- A kind of 1. method of watery fusion technique productions high tower fertilizer, it is characterised in that include the following steps：S1, add urea, fluxing agent in the high tower fusion tank of 100-120 DEG C of temperature, and heating melting, is made urea melting liquid；S2, add urea melting liquid in high tower mixing channel, adds phosphorus raw material, potassium raw material and auxiliary material, mixes 2-4min, is made The slurry of 80-100 DEG C of temperature；S3, by slurry through high-tower granulation, cooling treatment, is made fertiliser granulates；Wherein, fluxing agent includes potassium chloride, the polyvinyl alcohol water solution of 8-12%.
- 2. the method for watery fusion technique productions high tower fertilizer according to claim 1, it is characterised in that in S3, at cooling Further include and fertiliser granulates are sieved and surface anti-caking after reason.
- 3. the method for watery fusion technique productions high tower fertilizer according to claim 1 or claim 2, it is characterised in that chlorination in S1 The mass ratio of potassium and polyvinyl alcohol water solution is 3-10:0.1-0.2.
- 4. according to the method for any one of the claim 1-3 watery fusion technique productions high tower fertilizer, it is characterised in that in S1 The mass ratio of urea and fluxing agent is 100:3.1-10.2.
- 5. according to the method for any one of the claim 1-4 watery fusion technique productions high tower fertilizer, it is characterised in that in S2 Phosphorus raw material is monoammonium phosphate.
- 6. according to the method for any one of the claim 1-5 watery fusion technique productions high tower fertilizer, it is characterised in that in S2 Potassium raw material is at least one of potassium sulfate, potassium chloride, potassium dihydrogen phosphate.
- 7. according to the method for any one of the claim 1-6 watery fusion technique productions high tower fertilizer, it is characterised in that in S2 Auxiliary material is copper sulphate, at least one of ferrous sulfate, zinc sulfate, ammonium molybdate, borax and magnesium sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384074.XA CN107986874A (en) | 2017-12-20 | 2017-12-20 | A kind of method of watery fusion technique productions high tower fertilizer |
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|---|---|---|---|
| CN201711384074.XA CN107986874A (en) | 2017-12-20 | 2017-12-20 | A kind of method of watery fusion technique productions high tower fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107986874A true CN107986874A (en) | 2018-05-04 |
Family
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|---|---|---|---|
| CN201711384074.XA Pending CN107986874A (en) | 2017-12-20 | 2017-12-20 | A kind of method of watery fusion technique productions high tower fertilizer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317108A (en) * | 2019-08-23 | 2019-10-11 | 湖北都兴隆农业技术有限公司 | A kind of production method of fulvic acid type high tower fertilizer |
| CN110372441A (en) * | 2019-07-01 | 2019-10-25 | 安徽康坶国际化肥股份有限公司 | A kind of agglomeration resistance Water soluble fertilizer and preparation method thereof |
| CN110526747A (en) * | 2019-08-01 | 2019-12-03 | 贵州芭田生态工程有限公司 | A kind of preparation method and urea ammonium sulfate fertiliser containing magnesium product of urea ammonium sulfate fertiliser containing magnesium |
| CN111187110A (en) * | 2019-11-29 | 2020-05-22 | 新洋丰农业科技股份有限公司 | A kind of clear liquid type urine-based granular water-soluble fertilizer and preparation method thereof |
| CN113816790A (en) * | 2021-09-18 | 2021-12-21 | 阿克苏嘉邦肥业有限公司 | Preparation method and application of high-tower urea-based compound fertilizer viscosity reducer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274870A (en) * | 2007-03-30 | 2008-10-01 | 上海化工研究院 | A kind of preparation method of granular compound fertilizer |
| 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 |
| CN102584395A (en) * | 2012-02-15 | 2012-07-18 | 瓮福（集团）有限责任公司 | Method for producing urea-based compound fertilizer by high tower granulation |
| CN105884524A (en) * | 2016-04-18 | 2016-08-24 | 嘉施利（平原）化肥有限公司 | High-tower granulated urinary-chlorine-based compound fertilizer and preparation method thereof |
-
2017
- 2017-12-20 CN CN201711384074.XA patent/CN107986874A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274870A (en) * | 2007-03-30 | 2008-10-01 | 上海化工研究院 | A kind of preparation method of granular compound fertilizer |
| 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 |
| CN102584395A (en) * | 2012-02-15 | 2012-07-18 | 瓮福（集团）有限责任公司 | Method for producing urea-based compound fertilizer by high tower granulation |
| CN105884524A (en) * | 2016-04-18 | 2016-08-24 | 嘉施利（平原）化肥有限公司 | High-tower granulated urinary-chlorine-based compound fertilizer and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372441A (en) * | 2019-07-01 | 2019-10-25 | 安徽康坶国际化肥股份有限公司 | A kind of agglomeration resistance Water soluble fertilizer and preparation method thereof |
| CN110526747A (en) * | 2019-08-01 | 2019-12-03 | 贵州芭田生态工程有限公司 | A kind of preparation method and urea ammonium sulfate fertiliser containing magnesium product of urea ammonium sulfate fertiliser containing magnesium |
| CN110317108A (en) * | 2019-08-23 | 2019-10-11 | 湖北都兴隆农业技术有限公司 | A kind of production method of fulvic acid type high tower fertilizer |
| CN111187110A (en) * | 2019-11-29 | 2020-05-22 | 新洋丰农业科技股份有限公司 | A kind of clear liquid type urine-based granular water-soluble fertilizer and preparation method thereof |
| CN113816790A (en) * | 2021-09-18 | 2021-12-21 | 阿克苏嘉邦肥业有限公司 | Preparation method and application of high-tower urea-based compound fertilizer viscosity reducer |
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