CN108046871A - A kind of method for adding in inorganic salts and improving nitro-compound fertilizer product quality - Google Patents
A kind of method for adding in inorganic salts and improving nitro-compound fertilizer product quality Download PDFInfo
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- CN108046871A CN108046871A CN201711391235.8A CN201711391235A CN108046871A CN 108046871 A CN108046871 A CN 108046871A CN 201711391235 A CN201711391235 A CN 201711391235A CN 108046871 A CN108046871 A CN 108046871A
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- nitro
- inorganic salts
- fertilizer
- compound fertilizer
- sulfate
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 98
- 150000003839 salts Chemical class 0.000 title claims abstract description 29
- 150000002828 nitro derivatives Chemical class 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000008187 granular material Substances 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 37
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 26
- 230000008018 melting Effects 0.000 claims abstract description 26
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 14
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 14
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 6
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 6
- 235000011132 calcium sulphate Nutrition 0.000 claims abstract description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 4
- 239000011268 mixed slurry Substances 0.000 claims description 10
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 8
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 8
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 8
- 239000006012 monoammonium phosphate Substances 0.000 claims description 8
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 3
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 3
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 3
- 235000011151 potassium sulphates Nutrition 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 11
- 239000013078 crystal Substances 0.000 abstract description 9
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 5
- 239000001257 hydrogen Substances 0.000 abstract description 5
- 229910002651 NO3 Inorganic materials 0.000 abstract description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 4
- -1 salts zinc sulfate Chemical class 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 abstract description 2
- 239000004137 magnesium phosphate Substances 0.000 abstract description 2
- 229960002261 magnesium phosphate Drugs 0.000 abstract description 2
- 229910000157 magnesium phosphate Inorganic materials 0.000 abstract description 2
- 235000010994 magnesium phosphates Nutrition 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 19
- 238000001816 cooling Methods 0.000 description 18
- 238000010410 dusting Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 14
- 238000012216 screening Methods 0.000 description 10
- 235000013339 cereals Nutrition 0.000 description 9
- 229960003390 magnesium sulfate Drugs 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000004945 emulsification Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 239000011575 calcium Substances 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 235000013312 flour Nutrition 0.000 description 7
- 238000005286 illumination Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229940076230 magnesium sulfate monohydrate Drugs 0.000 description 4
- LFCFXZHKDRJMNS-UHFFFAOYSA-L magnesium;sulfate;hydrate Chemical compound O.[Mg+2].[O-]S([O-])(=O)=O LFCFXZHKDRJMNS-UHFFFAOYSA-L 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 229940095672 calcium sulfate Drugs 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- DVARTQFDIMZBAA-UHFFFAOYSA-O ammonium nitrate Chemical group [NH4+].[O-][N+]([O-])=O DVARTQFDIMZBAA-UHFFFAOYSA-O 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000018199 S phase Effects 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 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
- 230000001413 cellular effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- ILRLTAZWFOQHRT-UHFFFAOYSA-N potassium;sulfuric acid Chemical compound [K].OS(O)(=O)=O ILRLTAZWFOQHRT-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229940032330 sulfuric acid Drugs 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 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 present invention provides a kind of method added inorganic salts and improve nitro-compound fertilizer product quality.Inorganic salts zinc sulfate, magnesium sulfate are added in nitro compound fertilizer raw material, the material mixings such as calcium sulfate, sodium sulphate, magnesium phosphate, when level-one, two level mixing channel melting temperature are 130~170 DEG C, slurry mixing temperature is 145~165 DEG C, increase melting temperature, mixing temperature is 4~8 DEG C, free moisture can be issued additional, reduces by 0.5 2%.Ammonium nitrate porosity and specific area can be reduced, changes nitro-compound fertilizer double salt structure, makes consistency higher, enhances fertilizer granule strength；Addition inorganic salts can increase phase transition temperature, and 32.2 DEG C of nitrate crystalline substance height temperature before being allowed to is increased to 52.8 DEG C, reduce fertilizer storage temperature and crystal transfer occurs at 32 DEG C or so, avoid volume expansion, increase stability.Simultaneously because hydrone is smaller, the combination of decrease and ammonium nitrate hydrogen bond, opposite ammonium nitrate salt HYDROGEN BOND INTENSITY is secured, reduces the formation of particle surface crystal brige, enhances the storage validity period of fertiliser granulates.
Description
Technical field
The invention belongs to nitro high tower compound fertilizer preparation field, more particularly to a kind of addition inorganic salts improve nitro-compound fertilizer
The method of product quality.
Background technology
Nitro-compound fertilizer is one kind of composite fertilizer, rich in nitrate nitrogen and ammonium nitrogen, with it is quick, utilization rate is high, by client
Favor.But in the production process of nitro fertilizer, because raw material selection or nutrient formula are unreasonable, production process misoperation etc.,
Intensity is low for grain, moisture is high, is often present with product caking and dusting, accumulating to nitro-compound fertilizer, using bringing difficulty.
The production technology of nitro-compound fertilizer is that monoammonium phosphate, sulfuric acid are added in into ammonium nitrate molten mass according to setting ratio
The raw materials such as potassium, potassium chloride, by being sufficiently mixed generation high-temperature molten-state composite fertilizer slurry, composite fertilizer's slurry passes through special differential rotation
Turn prilling spry to be sprayed into granulation tower by tower top, the slurry of ejection is rapid solidifying in Ta Nei and the normal temperature air countercurrent flow that rises
Gu into fertiliser granulates, and the progressively cooling down during declining.Its ammonium nitrate structure crystal type is more, cellular, consistency
It is low, itself understand variation with temperature and crystal form variation occurs, the nitro-compound fertilizer of raw material production based on this is in cooling procedure
In can produce double salt, more complicated crystal form variation, which occurs, causes volume change, and granule strength is caused to reduce；Particle surface simultaneously
Between, with heat release and release moisture, particle surface may be caused to recrystallize, bridging property is strong between particle.This inside and outside crystal
The variation of structure causes nitro-compound fertilizer caking, dusting.
The content of the invention
In order to solve the deficiencies in the prior art, an object of the present invention is to provide a kind of addition inorganic salts raising nitro and answers
The method of Hefei product quality.Research is found：Inorganic salts zinc sulfate, magnesium sulfate, calcium sulfate, sulfuric acid are added in nitro compound fertilizer raw material
The material mixings such as sodium, magnesium phosphate, when level-one, two level mixing channel melting temperature are 130~170 DEG C, slurry mixing temperature is 145
~165 DEG C, increase melting temperature, mixing temperature as 4~8 DEG C, free moisture can be evaporated, reduce 0.5-2%.Ammonium nitrate hole can be reduced
Gap rate and specific area change nitro-compound fertilizer double salt structure, make consistency higher, enhance fertilizer granule strength；Add inorganic sulfur
Hydrochlorate can increase phase transition temperature, and 32.2 DEG C of nitrate crystalline substance height temperature before being allowed to is increased to 52.8 DEG C, reduce fertilizer storage temperature
At 32 DEG C or so crystal transfer occurs for degree, avoids volume expansion, increases stability.Meanwhile because hydrone is less, decrease and nitre
The combination of ammonium hydrogen bond, opposite ammonium nitrate salt HYDROGEN BOND INTENSITY is secured, reduces the formation of particle surface crystal brige, enhances the storage of fertiliser granulates
Validity period.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of nitro-compound fertilizer, raw material include：Inorganic salts, the inorganic salts are zinc sulfate, magnesium sulfate, calcium sulfate, sulphur
At least one of sour sodium, magnesium sulfate.
Preferably, the inorganic salts account for the 1~8% of raw material gross weight.
Preferably, the fineness of the inorganic salts is the mesh of 300 mesh~400.
The present invention also provides it is a kind of improve nitro-compound fertilizer granule strength method, including：
Inorganic salts and the nitro-compound fertilizers raw materials such as monoammonium phosphate, ammonium nitrate, potassium sulfate after melting twice are emulsified, must be starched
Liquid；
By slurries be granulated to get；
The inorganic salts are at least one of zinc sulfate, magnesium sulfate, calcium sulfate, sodium sulphate, magnesium sulfate.
Since most of sulfate are dissolved in water, nitro-compound fertilizer can be prepared with material melts such as ammonium nitrate, phosphorus ammonium, auxiliary materials.
SO4 2-Ionic radius compare NO3 -It is much bigger, there is tetrahedron space structure, volume is also very big.Therefore, the application uses sulfate
Into crystal, distribution is neither influenced, and can effectively hinder NO3 -Movement and deformation, make stable structure.Meanwhile research is also sent out
It is existing：Sulfate can also adsorb free water and form the crystallization water in product is formed, and reduce the Free water in fertilizer, strengthen hydrogen bond network
Fracture and restructuring are reduced, brilliant temperature is improved, avoids brilliant change.Adding suitable mineral sulfates can be with available energy by influencing nitre
The factors such as crystallization mode, ionic radius, the Ion configuration space structure of ammonium, modified ammonium nitrate improve brilliant change, gas porosity and resistive connection
Block performance improves the stability and intensity of nitro-compound fertilizer particle, granule strength is made to improve 10~30N, moisture reduces 0.1
~0.5wt%, improves that ammonium nitrate is brilliant to become peak temperature, avoid fertilizer under light illumination, humidity it is big under conditions of dusting, effectively prevent nitro
Complex fertilizer product lumps, and improves product quality, extends fertilizer product stock's phase, enhance the usability of product.
Preferably, the melting temperature is 130~170 DEG C.
Preferably, the pH value of the slurries is 5.5-8.
Preferably, it is described melt twice concretely comprise the following steps：Raw material in level-one mixing channel is melted, obtains mixed slurry, it will
Mixed slurry overflows to two level again to be mixed slot and melts again.
Preferably, the inorganic salts account for the 1~8% of raw material gross weight.
Preferably, the fineness of the inorganic salts is the mesh of 300 mesh~400.
The present invention also provides nitro-compound fertilizers prepared by any above-mentioned method.
Beneficial effects of the present invention
(1) enhance granule strength, nitro compound fertilizer granule strength is made to increase to 40N-50N by 20N or so.
(2) caking and powder phenomenon-tion of nitro-compound fertilizer are reduced.
(3) the middle trace element needed for crop is provided, Fertilizer nutrient is balanced.
(4) preparation method of the present invention is simple, it is efficient, highly practical to strengthen, easy to spread.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not form the improper restriction to the application for explaining the application.
Fig. 1 is the system flow chart of the present invention.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.It is unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
A kind of method for adding in inorganic salts and improving nitro fertilizer product quality, step are as follows：It will be a certain proportion of a kind of or more
The kind main materials such as inorganic salts and monoammonium phosphate, ammonium nitrate, potassium sulfate are measured through belt and closed, and are delivered to level-one mixing channel, two level successively
Mixing channel carries out mixed melting in 130~170 DEG C of conditions, and melting charge slurry is delivered to granulating system after mulser and is granulated.
Embodiment 1：Exemplified by producing high tower nitro fertilizer 27-0-0
Step 1 is formulated according to 27-0-0, and accounting for 77%, magnesium sulfate monohydrate according to mass fraction metering ammonium nitrate accounts for 3.0%, calcium
Powder (mountain flour) accounts for 18%, other to account for 2%, is sufficiently mixed, and is respectively delivered to level-one and mixes slot to be melted at 150 DEG C, is mixed
Close slurry.
Obtained mixed melting slurry is overflowed to two level and mixes slot after 140 DEG C or so are continued melting by step 2, and overflow is sent
It is emulsified to uniform mixer, forms homogeneous slurry.
Slurry after emulsification is sent to comminutor, and heat exchange cooling, screening, cooling, sieve is carried out in tower body by step 3
Point, the fertiliser granulates of granule regularizing are obtained, anti-caking agent package is carried out, is finally packed.
Step 4, the fertilizer that production is obtained, is taken grain number to be detected 70~100, using detector for strength of particles, obtained
It is 43.7N to fertiliser granulates mean intensity, it is 0.34% to detect material fertilizer average moisture using karl Fischer moisture teller, storehouse
Product is deposited in 4-6 month not hardened, not dusting.3-5 month not dusting are placed under light illumination.
Embodiment 2：Exemplified by producing high tower nitro fertilizer 27-0-0, increase the inorganic salt contents such as magnesium sulfate monohydrate.
Step 1 is formulated according to 27-0-0, and accounting for 77%, magnesium sulfate monohydrate according to mass fraction metering ammonium nitrate accounts for 5.0%, calcium
Powder (mountain flour) accounts for 16%, other to account for 2%, is sufficiently mixed, and is respectively delivered to level-one and mixes slot to be melted at 150 DEG C, is mixed
Close slurry.
Obtained mixed melting slurry is overflowed to two level and mixes slot after 140 DEG C or so are continued melting by step 2, and overflow is sent
It is emulsified to uniform mixer, forms homogeneous slurry.
Slurry after emulsification is sent to comminutor, and heat exchange cooling, screening, cooling, sieve is carried out in tower body by step 3
Point, the fertiliser granulates of granule regularizing are obtained, are packed after carrying out anti-caking agent package.
Step 4, the fertilizer that production is obtained, is taken fertilizer grain number to be detected 70~100, using detector for strength of particles, obtained
It is 45.6N to fertiliser granulates mean intensity, it is 0.32% to detect material fertilizer average moisture using karl Fischer moisture teller, storehouse
Deposit product not hardened, not dusting at 5 months or more.5-7 month not dusting are placed under light illumination.
Embodiment 3：Exemplified by producing high tower nitro fertilizer 28-6-0.
Step 1 is formulated according to 28-6-0, and accounting for 77%, monoammonium phosphate according to mass fraction metering ammonium nitrate accounts for 14%, a water
Magnesium sulfate accounts for 2.0%, calcium powder (mountain flour) and accounts for 5%, other to account for 2%, is sufficiently mixed, and is respectively delivered to level-one and mixes slot at 150 DEG C
It is melted, obtains mixed slurry.
Obtained mixed melting slurry is overflowed to two level and mixes slot after 140 DEG C or so are continued melting by step 2, and overflow is sent
It is emulsified to uniform mixer, forms homogeneous slurry.
Slurry after emulsification is sent to comminutor, and heat exchange cooling, screening, cooling, sieve is carried out in tower body by step 3
Point, the fertiliser granulates of granule regularizing are obtained, are packed after carrying out anti-caking agent package.
Step 4, the fertilizer that production is obtained, is taken fertilizer grain number to be detected 70~100, using detector for strength of particles, obtained
It is 40.8N to fertiliser granulates mean intensity, it is 0.54% to detect material fertilizer average moisture using karl Fischer moisture teller, storehouse
Deposit product not hardened, not dusting at 6 months or more.Not dusting in 6 months or more is placed under light illumination.
Embodiment 4：Exemplified by producing high tower nitro fertilizer 28-6-0.
Step 1 is formulated according to 28-6-0, and accounting for 77%, monoammonium phosphate according to mass fraction metering ammonium nitrate accounts for 14%, a water
Magnesium sulfate accounts for 3.0%, calcium powder (mountain flour) and accounts for 4%, other to account for 2%, is sufficiently mixed, and is respectively delivered to level-one and mixes slot at 150 DEG C
It is melted, obtains mixed slurry.
Obtained mixed melting slurry is overflowed to two level and mixes slot after 140 DEG C or so are continued melting by step 2, and overflow is sent
It is emulsified to uniform mixer, forms homogeneous slurry.
Slurry after emulsification is sent to comminutor, and heat exchange cooling, screening, cooling, sieve is carried out in tower body by step 3
Point, the fertiliser granulates of granule regularizing are obtained, are packed after carrying out anti-caking agent package.
Step 4, the fertilizer that production is obtained, is taken fertilizer grain number to be detected 70~100, using detector for strength of particles, obtained
It is 43.3N to fertiliser granulates mean intensity, it is 0.50% to detect material fertilizer average moisture using karl Fischer moisture teller, storehouse
Deposit product not hardened, not dusting at 6 months or more.Not dusting in 6 months or more is placed under light illumination.
Embodiment 5：Exemplified by producing high tower nitro fertilizer 30-6-0.
Step 1 is formulated according to 30-6-0, and accounting for 83%, monoammonium phosphate according to mass fraction metering ammonium nitrate accounts for 14%, a water
Magnesium sulfate accounts for 1.0%, it is other account for 2%, be sufficiently mixed, and be respectively delivered to level-one and mix slot to be melted at 150 DEG C, mixed
Slurry.
Obtained mixed melting slurry is overflowed to two level and mixes slot after 140 DEG C or so are continued melting by step 2, and overflow is sent
It is emulsified to uniform mixer, forms homogeneous slurry.
Slurry after emulsification is sent to comminutor, and heat exchange cooling, screening, cooling, sieve is carried out in tower body by step 3
Point, the fertiliser granulates of granule regularizing are obtained, are packed after carrying out anti-caking agent package.
Step 4, the fertilizer that production is obtained, is taken fertilizer grain number to be detected 70~100, using detector for strength of particles, obtained
It is 40.6N to fertiliser granulates mean intensity, it is 0.57% to detect material fertilizer average moisture using karl Fischer moisture teller, storehouse
Deposit product not hardened, not dusting at 6 months or more.Not dusting in 6 months or more is placed under light illumination.
Embodiment 6：Exemplified by producing high tower nitro fertilizer 15-5-20.
Step 1 is formulated according to 15-5-20, and accounting for 40%, monoammonium phosphate according to mass fraction metering ammonium nitrate accounts for 12%, sulfuric acid
Potassium accounts for 40%, and magnesium sulfate monohydrate accounts for 3%, calcium powder (mountain flour) and accounts for 5%, is sufficiently mixed, and is respectively delivered to level-one and mixes slot at 150 DEG C
It is melted, obtains mixed slurry.
Obtained mixed melting slurry is overflowed to two level and mixes slot after 140 DEG C or so are continued melting by step 2, and overflow is sent
It is emulsified to uniform mixer, forms homogeneous slurry.
Slurry after emulsification is sent to comminutor, and heat exchange cooling, screening, cooling, sieve is carried out in tower body by step 3
Point, the fertiliser granulates of granule regularizing are obtained, are packed after carrying out anti-caking agent package.
Step 4, the fertilizer that production is obtained, is taken fertilizer grain number to be detected 70~100, using detector for strength of particles, obtained
It is 42.7N to fertiliser granulates mean intensity, it is 0.58% to detect material fertilizer average moisture using karl Fischer moisture teller, storehouse
Deposit product not hardened, not dusting at 6 months or more.Not dusting in 6 months or more is placed under light illumination.
Embodiment 7 is exemplified by producing high tower nitro fertilizer 26-0-0.
According to the method for production high tower nitro fertilizer 26-0-0,76%, calcium powder is accounted for according to mass fraction metering ammonium nitrate for step 1
(mountain flour) accounts for 17%, and addition inorganic salts magnesium sulfate 5% is other to account for 2%, is sufficiently mixed, and is respectively delivered to level-one and mixes slot 150
It DEG C is melted, obtains mixed slurry.
Obtained mixed melting slurry is overflowed to two level and mixes slot after 140 DEG C or so are continued melting by step 2, and overflow is sent
It is emulsified to uniform mixer, forms homogeneous slurry.
Step 3, by the slurry pipeline transport after emulsification to comminutor, and carry out in tower body heat exchange cooling, screening, cooling,
Screening obtains the fertiliser granulates of granule regularizing, is packed after carrying out anti-caking agent package.
Step 4, the fertilizer that production is obtained, is taken fertilizer grain number to be detected 70~100, using detector for strength of particles, obtained
It is 43.9N to fertiliser granulates mean intensity, using similary above-mentioned nitro fertilizer preparation process method, does not add inorganic salts, prepare
The particle mean intensity of the nitro fertilizer 26-0-0 gone out is 20.6N, and by comparing before and after addition, fertiliser granulates intensity relative increase arrives
40N-50N。
Embodiment 8：Exemplified by producing high tower nitro fertilizer 28-6-0.
According to the method for production high tower nitro fertilizer 28-6-0,77%, phosphoric acid is accounted for according to mass fraction metering ammonium nitrate for step 1
Monoammonium accounts for 14%, and inorganic salts calcium sulfate accounts for 3.0%, calcium powder (mountain flour) and accounts for 4%, other to account for 2%, is sufficiently mixed, and conveys respectively
Slot is mixed to level-one to be melted at 150 DEG C, obtains mixed slurry.
Obtained mixed melting slurry is overflowed to two level and mixes slot after 140 DEG C or so are continued melting by step 2, and overflow is sent
It is emulsified to uniform mixer, forms homogeneous slurry.
Step 3, by the slurry pipeline transport after emulsification to comminutor, and carry out in tower body heat exchange cooling, screening, cooling,
Screening obtains the fertiliser granulates of granule regularizing, is packed after carrying out anti-caking agent package.
Step 4, the fertilizer that production is obtained, is taken fertilizer grain number to be detected 70~100, using detector for strength of particles, obtained
It is 49.8N to fertiliser granulates mean intensity, using similary above-mentioned nitro fertilizer preparation process method, does not add inorganic salts, prepare
The particle mean intensity of the nitro fertilizer 28-6-0 gone out is 25.2N, and by comparing before and after addition, fertiliser granulates intensity relative increase arrives
40N-50N。
Finally it should be noted that the foregoing is only a preferred embodiment of the present invention, this hair is not limited to
It is bright, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, still
It can modify to the technical solution recorded in previous embodiment or equivalent substitution is carried out to which part.It is all in this hair
Within bright spirit and principle, any modifications, equivalent replacements and improvements are made should be included in protection scope of the present invention
Within.Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not to the scope of the present invention
Limitation, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not required to
The various modifications or changes that can be made are made the creative labor still within protection scope of the present invention.
Claims (10)
1. a kind of nitro-compound fertilizer, which is characterized in that raw material includes：Inorganic salts, the inorganic salts for zinc sulfate, magnesium sulfate,
At least one of calcium sulfate, sodium sulphate, magnesium sulfate.
2. nitro-compound fertilizer as described in claim 1, which is characterized in that the inorganic salts account for the 1~8% of raw material gross weight.
3. nitro-compound fertilizer as described in claim 1, which is characterized in that the fineness of the inorganic salts is the mesh of 300 mesh~400.
A kind of 4. method for improving nitro-compound fertilizer granule strength, which is characterized in that including：
Inorganic salts and the nitro-compound fertilizers raw materials such as monoammonium phosphate, ammonium nitrate, potassium sulfate after melting twice are emulsified, obtain slurries；
By slurries be granulated to get；
The inorganic salts are zinc sulfate, magnesium sulfate, calcium sulfate, sodium sulphate, in magnesium sulfate at least one of.
5. method as claimed in claim 4, which is characterized in that the melting temperature is 130~170 DEG C.
6. method as claimed in claim 4, which is characterized in that the pH value of the slurries is 5.5-8.
7. method as claimed in claim 4, which is characterized in that it is described melt twice concretely comprise the following steps：By raw material in level-one
Mixing channel melts, and obtains mixed slurry, mixed slurry is overflowed to two level again mixes slot and melt again.
8. the method as described in claim 1, which is characterized in that the inorganic salts account for the 1~8% of raw material gross weight.
9. the method as described in claim 1, which is characterized in that the fineness of the inorganic salts is the mesh of 300 mesh~400.
10. nitro-compound fertilizer prepared by claim 8-9 any one of them method.
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| CN113956107A (en) * | 2021-12-14 | 2022-01-21 | 新洋丰农业科技股份有限公司 | Preparation method of anti-caking high-tower full-water-soluble nitro compound fertilizer |
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| CN104692951A (en) * | 2015-03-19 | 2015-06-10 | 四川金象赛瑞化工股份有限公司 | Water-soluble compound nitrogen fertilizer and preparation method |
| US20170253534A1 (en) * | 2010-01-15 | 2017-09-07 | Pursell Agri-Tech, LLC | Fertilizers containing animal nutrient core packet |
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| US20170253534A1 (en) * | 2010-01-15 | 2017-09-07 | Pursell Agri-Tech, LLC | Fertilizers containing animal nutrient core packet |
| CN102875216A (en) * | 2012-10-31 | 2013-01-16 | 贵港市芭田生态有限公司 | Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer |
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| CN113956107A (en) * | 2021-12-14 | 2022-01-21 | 新洋丰农业科技股份有限公司 | Preparation method of anti-caking high-tower full-water-soluble nitro compound fertilizer |
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