CN203639360U - Slow/controlled-release fertilizer production system - Google Patents
Slow/controlled-release fertilizer production system Download PDFInfo
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- CN203639360U CN203639360U CN201320887610.9U CN201320887610U CN203639360U CN 203639360 U CN203639360 U CN 203639360U CN 201320887610 U CN201320887610 U CN 201320887610U CN 203639360 U CN203639360 U CN 203639360U
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- Prior art keywords
- storage tank
- slurry
- fertilizer
- tempering tank
- slow
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 75
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000013270 controlled release Methods 0.000 title abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 22
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000227 grinding Methods 0.000 claims abstract description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 9
- 239000004202 carbamide Substances 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 5
- 238000005496 tempering Methods 0.000 claims description 32
- 238000012216 screening Methods 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 abstract description 20
- 239000000126 substance Substances 0.000 abstract description 14
- 239000002245 particle Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 238000005453 pelletization Methods 0.000 abstract 4
- 238000007873 sieving Methods 0.000 abstract 4
- 239000007888 film coating Substances 0.000 abstract 2
- 238000009501 film coating Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 33
- 238000005469 granulation Methods 0.000 description 14
- 230000003179 granulation Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 235000015097 nutrients Nutrition 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229940072033 potash Drugs 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 3
- 235000015320 potassium carbonate Nutrition 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000000618 nitrogen fertilizer Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 235000012041 food component Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 150000003112 potassium compounds Chemical class 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009479 steam granulation Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
Images
Abstract
The utility model discloses a slow/controlled-release fertilizer production system, and belongs to the technical field of chemical fertilizers. The slow/controlled-release fertilizer production system comprises a sulfuric acid storage tank, a phosphoric acid storage tank, an acid mixing groove, a tubular reactor, a liquid ammonia storage tank, a slurry mixing groove, a hopper, a mixing belt, a grinding device, a revolving drum pelletizing and drying device, a urea slurry adding device, a cooling device, a sieving device, a film coating device, a packaging device, a smashing device and a tail gas treatment device, wherein the acid mixing groove, the tubular reactor, the slurry mixing groove, the revolving drum pelletizing and drying device, the cooling device, the sieving device, the film coating device and the packaging device are connected in sequence; the liquid ammonia storage tank is connected with the tubular reactor; the hopper, the mixing belt, the grinding device and the slurry mixing groove are connected in sequence; the urea slurry adding device is connected with the revolving drum pelletizing and drying device; the tail gas treatment device is connected with the revolving drum pelletizing and drying device and the cooling device; the particle port of the sieving device is connected with the slurry mixing groove; the coarse grain port of the sieving device, the smashing device and the slurry mixing groove are connected in sequence.
Description
Technical field
The utility model belongs to fertilizer production technology field, particularly a kind of slow-release or control-release fertilizer production system.
Background technology
Slow-release or control-release fertilizer is to make the initial delayed discharge of its nutrient with various regulatory mechanisms, and the validity period that prolongation plant absorbs its available nutrient, makes its nutrient according to the release rate of setting and release period is slow or the fertilizer of control release.Not only save fertilising recruitment, and can improve crop yield and quality.In addition, this technology can also improve the utilization ratio of fertilizer greatly, reduces environmental pollution, is the direction of global chemical fertilizer industry development, also be a great revolution of fertilizer application technology, will replace chemical fertilizer of simple substance and the common Chemical Mixed Fertilizer of lower concentration of existing expensive, poor efficiency.Current development high efficiency sustainable agriculture is produced to material impact, substantially solved that China's chemical fertilizer utilization ratio is low, Crops in Applying Fertilizer effect of increasing production declines, loss of nitrogen fertilizer is serious and caused the problem of environmental pollution.
Research shows: the additive of controlled release special fertilizer is coated fertilizer, its contain multiple beneficial in crop growth, trace element and light rare earths, there is special physics, chemical property and biological activity, as the additive of compound fertilizer, not only be conducive to improve granulation balling ratio and the quality product of compound fertilizer, but also can play balance fertilizing, apply fertilizers scientifically, improve crop yield and the multiple effect such as quality and resistance, therefore greatly improve fertilizer efficiency and chemical fertilizer utilization ratio, be conducive to agriculture increasing both production and income.Match targetedly the controlled release special fertilizer of certain crop, in the different vegetative phases according to the needs of crop, nutrient is supplied in equilibrium constantly, can further improve chemical fertilizer utilization ratio, owing to having reduced the volatilization leaching of fertilizer, strengthen fixing to nutrient of soil, improve fertilising benefit, amount of application and the fertilising that can reduce fertilizer drop into, and reduce the pollution of fertilizer to environment.Therefore, in Hubei Province, board controlled release special fertilizer is the controlled release special fertilizer of a kind of novel low cost, nuisanceless, high chemical fertilizer utilization ratio.
The production technique of high concentration fertilizer (composite fertilizer, Chemical Mixed Fertilizer) can be divided into two classes substantially by prilling process both at home and abroad at present: a class is spray granulating method, and another kind of is granulating method.Spray granulating method be phosphorus ammonium or composite fertilizer in process of production, require to add a certain amount of potassium and nitrogen according to product grade, utilize phosphorus ammonium or composite fertilizer's slip to produce the granulated fertilizer containing N, P, K.As domestic south, largeization, Guixi and Yunnan nitrogen fertilizer plant produce 240000 tons of monoammonium phosphate devices per year.The developed countries such as the existing U.S., Canada all adopt this method, and these two kinds of prilling process are all reliable technically.The Technology of domestic production solid compound fertilizer has two kinds of different technical process at present, the first technological process of production is the fertilizer (as phosphorus ammonium and other N, P, K composite fertilizer) that has the production equipment of chemical reaction to produce, and the fertilizer that adopts this kind of method to produce according to traditional habit is referred to as composite fertilizer.The second technological process of production is that the fertilizer that does not have the production equipment of chemical reaction to produce is commonly called as Chemical Mixed Fertilizer.
The mode of production of Chemical Mixed Fertilizer has blending method, the large class of granulating method two.Blending method carries out simple blending the base fertilizer of particulate state or powdery and obtains Chemical Mixed Fertilizer.The blending of powdered fertilizer is relevant with the physical property of base fertilizer, is only applicable to on-mechanical fertilising, uses at present few in developed country.The blending production technique of granulated fertilizer is simple, and plant investment and processing charges are all lower, but in production operation, extremely emphasizes the size-grade distribution of base fertilizer used.Granulating method is take powdered fertilizer or the piece granulated fertilizer after fragmentation as base fertilizer, after mixing, with steam heating or add certain liquid, makes it the amount of liquid phase that keeps certain, carries out granulating in tablets press, then drying, screening, obtain product after cooling.
Granulating method can be divided into extruder grain method and disc granulation method etc.Extruder grain method is now usually used in the granulation of compoiste fertilizer or small-scale production of compound fertilizer device, after the fertilizer of general fermentation and nitrogen, phosphorus, potash fertilizer combination drying, enter tablets press extruding, granulation, screening after particle be finished product.Disc granulation method is now usually used in the granulation of small-scale production of compound fertilizer device.Nitrogen, phosphorus, potash fertilizer compound enter that rotary drum granulator adds suitable quantity of water or steam granulation forms, and after dry screening, particle is finished product.But be not suitable for large-scale production equipment.
Summary of the invention
In order to adapt to the scale operation of slow-release or control-release fertilizer.The utility model embodiment provides a kind of slow-release or control-release fertilizer production system.Described technical scheme is as follows:
The utility model embodiment provides a kind of slow-release or control-release fertilizer production system, and this system comprises sulfuric acid storage tank, phosphoric acid storage tank, acid tempering tank, tubular reactor, liquid ammonia storage tank, slurry tempering tank, hopper, mix belt, grinding device, drum granulating drying installation, urea slip adding set, refrigerating unit, screening plant, coating device, packing plant, shredder assembly and exhaust gas processing device, described sour tempering tank, tubular reactor, slurry tempering tank, drum granulating drying installation, refrigerating unit, screening plant, coating device is connected successively with packing plant, and described sulfuric acid storage tank is connected with described sour tempering tank with phosphoric acid storage tank, and described liquid ammonia storage tank is connected with described tubular reactor, described hopper, mix belt, grinding device is connected successively with slurry tempering tank, described urea slip adding set is connected with described drum granulating drying installation, described exhaust gas processing device is connected with refrigerating unit with described drum granulating drying installation, the powder mouth of described screening plant is connected with described slurry tempering tank, the coarse grain mouth of described screening plant, shredder assembly is connected successively with slurry tempering tank.
Wherein, the drum granulating drying installation in the utility model embodiment is raised and is heated wind regime under adopting.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The utility model provides a kind of slow-release or control-release fertilizer production system, and this system is applicable to scale operation.Meanwhile, this system is in conjunction with granulating method production technology, has that technique is simple, flow process is short, easy to operate, product restructuring is quick, raw material storing is convenient and the beneficial effect such as reduced investment, instant effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the slow-release or control-release fertilizer production system that provides of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, the utility model embodiment provides a kind of slow-release or control-release fertilizer production system, and this system comprises the structures such as sulfuric acid storage tank, phosphoric acid storage tank, sour tempering tank, tubular reactor, liquid ammonia storage tank, slurry tempering tank, hopper, mixing belt, grinding device, drum granulating drying installation, urea slip adding set, refrigerating unit, screening plant, coating device, packing plant, shredder assembly and exhaust gas processing device.Wherein, acid tempering tank, tubular reactor, slurry tempering tank, drum granulating drying installation, refrigerating unit, screening plant, coating device is connected successively with packing plant, sulfuric acid storage tank is connected with sour tempering tank with phosphoric acid storage tank, liquid ammonia storage tank is connected with tubular reactor, hopper, mix belt, grinding device is connected successively with slurry tempering tank, urea slip adding set is connected with drum granulating drying installation, exhaust gas processing device is connected with refrigerating unit with drum granulating drying installation, the powder mouth of screening plant is connected with the opening for feed of slurry tempering tank, the coarse grain mouth of screening plant, shredder assembly is connected successively with the opening for feed of slurry tempering tank.Above-mentioned each structure can be connected by pipeline or travelling belt as required.Wherein, native system adopts drum granulating method to produce slow-release or control-release fertilizer; the method is a kind of compound fertilizer production method, and nitrogen, phosphorus, potassium compound enter rotary drum granulator and pass into steam and add a small amount of water to carry out after granulation simultaneously, and drying, cooling, sieve particle are finished product.Single covering device throughput maximum has reached more than 100,000 tons/year, other prilling granulator less investment relatively, and stable operation and good operational environment, balling ratio is high and granulation is effective.
Wherein, sour tempering tank is used for mixing sulfuric acid and phosphoric acid; Tubular reactor is for the production of phosphorus ammonium slurry; Slurry tempering tank is for the mixing of multiple nutritional components; Hopper, mixing belt and grinding device are for adding and processing other compositions beyond dephosphorization, nitrogen, as potash fertilizer; Drum granulating drying installation is used for realizing slurry granulation and dry; Screening plant is for screening the particle after granulation, only having granular size to meet certain requirements just sends in coating device and processes, small-particle (powder) is directly sent into slurry tempering tank and is carried out granulation again, and coarse particles is sent into slurry tempering tank again and carried out granulation again after shredder assembly fragmentation; Coating device is used for adopting coated fertilizer to carry out coating processing to compound fertilizer granules; Exhaust gas processing device is for processing the tail gas of drum granulating drying installation and refrigerating unit generation.
Particularly, the grinding device in the utility model embodiment has adopted Ultrafine Grinding, can increasing specific surface area, be conducive to granulation balling-up simultaneously.Hopper in the utility model embodiment has adopted automatic blending, and accurately flexible has been saved manpower simultaneously.Granulation process in the utility model embodiment adopts drum granulating, and balling ratio is high, and granule strength is high.The thermal source of the drum granulating drying installation in the utility model embodiment is raised and is heated wind regime under adopting, and this roasting kiln efficiency of combustion is high, adapts to coal extensive.Packing plant in the utility model embodiment adopts electronic packing scale, can accurately regulate flexibly by various packings such as 5KG-50KG, adapts to different customer requirements.
The technical process of slow-release or control-release fertilizer production system the utility model embodiment being provided below in conjunction with Fig. 1 describes: after sulfuric acid, phosphoric acid are mixed, enter tubular reactor, pass into ammonia, send into slurry tempering tank after reaction.The raw material such as urea, Repone K enters respectively hopper separately, after electronic belt computer metering, enters compound conveyor and enters after pulverizer grinding again and transport to slurry tempering tank with belt.Compound enters drum granulating drying installation through pump machine and carries out granulating and drying, it is cooling that dried material enters refrigerating unit, cooled material is after screening plant screening, and the qualified particle of size is sent into coating device and specialist additive and entered finished product bucket after material coated and be finished product through packaging automat packing.Large granular materials enters rotary drum granulator return to slurry tempering tank after pulverizer is pulverized after, after small-particle (powder) directly returns to slurry tempering tank, enters rotary drum granulator.Dry and cooling tail gas out enters respectively after the dedusting of gravity settling fly-ash separator, through aiutage discharges after entering the further dedusting of water wash column after induced draft fan.
The utility model provides a kind of slow-release or control-release fertilizer production system, and this system is applicable to scale operation.Meanwhile, this system is in conjunction with granulating method production technology, has that technique is simple, flow process is short, easy to operate, product restructuring is quick, raw material storing is convenient and the beneficial effect such as reduced investment, instant effect.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. a slow-release or control-release fertilizer production system, is characterized in that, comprises sulfuric acid storage tank, phosphoric acid storage tank, acid tempering tank, tubular reactor, liquid ammonia storage tank, slurry tempering tank, hopper, mix belt, grinding device, drum granulating drying installation, urea slip adding set, refrigerating unit, screening plant, coating device, packing plant, shredder assembly and exhaust gas processing device, described sour tempering tank, tubular reactor, slurry tempering tank, drum granulating drying installation, refrigerating unit, screening plant, coating device is connected successively with packing plant, and described sulfuric acid storage tank is connected with described sour tempering tank with phosphoric acid storage tank, and described liquid ammonia storage tank is connected with described tubular reactor, described hopper, mix belt, grinding device is connected successively with slurry tempering tank, described urea slip adding set is connected with described drum granulating drying installation, described exhaust gas processing device is connected with refrigerating unit with described drum granulating drying installation, the powder mouth of described screening plant is connected with described slurry tempering tank, the coarse grain mouth of described screening plant, shredder assembly is connected successively with slurry tempering tank.
2. slow-release or control-release fertilizer production system according to claim 1, is characterized in that, described drum granulating drying installation is raised and heated wind regime under adopting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320887610.9U CN203639360U (en) | 2013-12-31 | 2013-12-31 | Slow/controlled-release fertilizer production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320887610.9U CN203639360U (en) | 2013-12-31 | 2013-12-31 | Slow/controlled-release fertilizer production system |
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| CN203639360U true CN203639360U (en) | 2014-06-11 |
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| CN201320887610.9U Expired - Lifetime CN203639360U (en) | 2013-12-31 | 2013-12-31 | Slow/controlled-release fertilizer production system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698292A (en) * | 2017-11-06 | 2018-02-16 | 湘潭顺航环保科技有限公司 | A kind of environment-friendly high-efficiency composite fertilizer synthesis production line |
-
2013
- 2013-12-31 CN CN201320887610.9U patent/CN203639360U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698292A (en) * | 2017-11-06 | 2018-02-16 | 湘潭顺航环保科技有限公司 | A kind of environment-friendly high-efficiency composite fertilizer synthesis production line |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 431915 phosphating Industrial Zone, Hubei Province, Zhongxiang, Jingmen, Hubei Patentee after: HUBEI EZHONG ECOLOGICAL ENGINEERING Co.,Ltd. Address before: 431915 phosphating Industrial Zone, Hubei Province, Zhongxiang, Jingmen, Hubei Patentee before: HUBEI E'ZHONG CHEMICAL CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
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| CX01 | Expiry of patent term |