CN1475470A - Method of producing granular composite fertilizer using high tower pellatizer and equipment - Google Patents
Method of producing granular composite fertilizer using high tower pellatizer and equipment Download PDFInfo
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- CN1475470A CN1475470A CNA031396011A CN03139601A CN1475470A CN 1475470 A CN1475470 A CN 1475470A CN A031396011 A CNA031396011 A CN A031396011A CN 03139601 A CN03139601 A CN 03139601A CN 1475470 A CN1475470 A CN 1475470A
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- fertilizer
- compound
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- prilling
- filler
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 51
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 37
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 25
- 238000002844 melting Methods 0.000 claims description 22
- 230000008018 melting Effects 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 22
- 238000005469 granulation Methods 0.000 claims description 19
- 230000003179 granulation Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 14
- 239000004202 carbamide Substances 0.000 claims description 14
- 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 description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229940072033 potash Drugs 0.000 claims description 10
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 10
- 235000015320 potassium carbonate Nutrition 0.000 claims description 10
- 241000282326 Felis catus Species 0.000 claims description 9
- 239000000618 nitrogen fertilizer Substances 0.000 claims description 8
- 239000002686 phosphate fertilizer Substances 0.000 claims description 8
- 239000000975 dye Substances 0.000 claims description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical group [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical group [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 6
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical group [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 5
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 5
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 5
- 239000006012 monoammonium phosphate Substances 0.000 claims description 5
- 208000006558 Dental Calculus Diseases 0.000 claims description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 4
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 4
- 239000010459 dolomite Substances 0.000 claims description 4
- 229910000514 dolomite Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 150000002828 nitro derivatives Chemical class 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000011573 trace mineral Substances 0.000 claims description 4
- 235000013619 trace mineral Nutrition 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000005749 Copper compound Substances 0.000 claims description 2
- 150000001639 boron compounds Chemical class 0.000 claims description 2
- 150000001880 copper compounds Chemical class 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims description 2
- 150000002681 magnesium compounds Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000005078 molybdenum compound Substances 0.000 claims description 2
- 150000002752 molybdenum compounds Chemical class 0.000 claims description 2
- -1 sulphur compound Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 18
- 239000000843 powder Substances 0.000 description 10
- 238000012216 screening Methods 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052700 potassium Inorganic materials 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 210000003608 fece Anatomy 0.000 description 5
- 238000013467 fragmentation Methods 0.000 description 5
- 238000006062 fragmentation reaction Methods 0.000 description 5
- 239000010871 livestock manure Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 239000011591 potassium Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 3
- 230000000050 nutritive effect Effects 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 2
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 description 2
- MAHJBKDUCDFDMU-UHFFFAOYSA-N [O-][N+]([P])=O Chemical compound [O-][N+]([P])=O MAHJBKDUCDFDMU-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 2
- 239000011609 ammonium molybdate Substances 0.000 description 2
- 235000018660 ammonium molybdate Nutrition 0.000 description 2
- 229940010552 ammonium molybdate Drugs 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229940076230 magnesium sulfate monohydrate Drugs 0.000 description 2
- 229940091250 magnesium supplement Drugs 0.000 description 2
- LFCFXZHKDRJMNS-UHFFFAOYSA-L magnesium;sulfate;hydrate Chemical compound O.[Mg+2].[O-]S([O-])(=O)=O LFCFXZHKDRJMNS-UHFFFAOYSA-L 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- ZIUSSTSXXLLKKK-KOBPDPAPSA-N (1e,4z,6e)-5-hydroxy-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,4,6-trien-3-one Chemical compound C1=C(O)C(OC)=CC(\C=C\C(\O)=C\C(=O)\C=C\C=2C=C(OC)C(O)=CC=2)=C1 ZIUSSTSXXLLKKK-KOBPDPAPSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VFLDPWHFBUODDF-FCXRPNKRSA-N Curcumin Natural products C1=C(O)C(OC)=CC(\C=C\C(=O)CC(=O)\C=C\C=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-FCXRPNKRSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 241000276489 Merlangius merlangus Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 102100029292 Protein sprouty homolog 3 Human genes 0.000 description 1
- 101710082104 Protein sprouty homolog 3 Proteins 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- UHWKUASXRMSZEK-UHFFFAOYSA-N [K].[P].[N].[N] Chemical compound [K].[P].[N].[N] UHWKUASXRMSZEK-UHFFFAOYSA-N 0.000 description 1
- DHKHZGZAXCWQTA-UHFFFAOYSA-N [N].[K] Chemical compound [N].[K] DHKHZGZAXCWQTA-UHFFFAOYSA-N 0.000 description 1
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 description 1
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- VFLDPWHFBUODDF-UHFFFAOYSA-N diferuloylmethane Natural products C1=C(O)C(OC)=CC(C=CC(=O)CC(=O)C=CC=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- SXQCTESRRZBPHJ-UHFFFAOYSA-M lissamine rhodamine Chemical compound [Na+].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=C(S([O-])(=O)=O)C=C1S([O-])(=O)=O SXQCTESRRZBPHJ-UHFFFAOYSA-M 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 239000011785 micronutrient Substances 0.000 description 1
- 235000013369 micronutrients Nutrition 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
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Abstract
A process for preparing the granular composite fertilizer by high-tower granulating includes mixing raw materials with filler, thermal fusing, spraying from the rotating nozzles at tower top, and slow dropping down under the resistance of lifting-up airflow. Its equipment is composed of granulating tower, fusing mixer, and granulating nozzles. Its advantages are less energy consumption and no environmental pollution.
Description
Technical field
The present invention relates to composite fertilizer and production unit, particularly relate to the method and apparatus that a kind of high tower prilling is produced granular composite fertilizer.
Background technology
In agriculture production, be extensive use of various fertilizer, mainly be chemical fertilizer of simple substance and contain, the polyelement composite fertilizer of nitrogen, phosphorus, potassium and other nutritive element, wherein the production method of compound manure mainly contains granulating method, slurry process, extrusion process and blending method etc.They are that urea, ammonium nitrate, phosphorus ammonium, coarse whiting, Repone K, vitriolate of tartar etc. are carried out the compound manure that secondary processing is made various nutrient elements such as containing nitrogen, phosphorus, potassium.In chemical fertilizers production, the high tower prilling technology is mainly adopted in the granulation of urea, ammonium nitrate fertilizer, and granulating equipment mainly contains rotary differential shower nozzle tablets press, fixed sprinkler tablets press and oscillatory type shower nozzle tablets press.What mainly adopt as high tower prilling equipment is the rotating sprinkler tablets press.High tower prilling technology cardinal principle is that melting charge slurry is passed through the form ejection of the special prilling spry of cat head with thin jet fluid column, the fluid column of ejection fragments into drop when contacting with air, drop descends in tower and conducts heat with air, and mass transfer is solidified into particle and falls at the bottom of the tower.The high tower prilling major advantage has:
(1), the melting charge slurry moisture content is low, the drying-free process has been saved energy consumption;
(2), smooth, mellow and full, the prevented from caking of particle surface, have the higher market competitiveness;
(3), good operational environment, three-waste free discharge belongs to process for cleanly preparing;
(4), can directly utilize production system urea or ammonium nitrate melt, simplified the technological process of production.
But also there is following defective in it:
(1), the regulation range of product particle size is narrow, particularly the products production that particle is bigger has certain degree of difficulty;
(2), prilling tower must have certain height, investment cost is big.
In the prior art, traditional high tower prilling is mainly used in the granulation of urea, ammonium nitrate, and is used to produce chemical fertilizer of simple substance.Using high tower manufacturing nitrogen phosphorus k particle compound manure does not then appear in the newspapers.
Summary of the invention
The present invention aims to provide the method that a kind of high tower prilling that can produce the compound manure that contains the required nitrogen of farm crop, phosphorus, three kinds of nutritive elements of potassium is produced granular composite fertilizer, so that can simplify production technique, reduce the energy consumption of production process, and realize three-waste free discharge; The present invention also aims to provide the equipment of this method of realization.
For achieving the above object, the invention provides a kind of high tower prilling and produce the method for granular composite fertilizer, the principle of this method is based on the characteristics that urea or ammonium nitrate and ammonium sulfate, potash fertilizer can form the eutectic compound, with raw materials such as urea or ammonium nitrate heating and melting together, melting charge slurry is sprayed by cat head rotating granulation shower nozzle and is entered in the prilling tower.The granulation material from cat head decline process with the gas-flow resistance effect of rising under drop to tower slowly at the bottom of, obtain granular urine-base or nitro azophoska compound fertilizer material through screening.This method comprises the steps:
A, will produce urea-base compound fertilizer or raw material that nitro-compound fertilizer uses and the fusion of filler Hybrid Heating;
B, melting charge slurry are sprayed by high column overhead rotating granulation shower nozzle and are entered in the prilling tower;
C, slip from cat head decline process with the gas-flow resistance effect of rising under drop to tower slowly at the bottom of, and finish granulation;
Material after the granulation sieves, and qualified particle (1-4mm) enters the face powder tube to carry out packing after the surface treatment again; Powder material after the screening as returning charge, is got back in the melt mixer after the macrobead fragmentation.
More particularly, described urea-base compound fertilizer be by urea, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, filler in 1.5: (0-1.0): (0-1.0): (0-1.0): ratio (0-1.0) (weight part) mixes, and makes melting charge slurry under 100 ℃～145 ℃ Heating temperature in melt mixer.
Described nitro-compound fertilizer be by ammonium nitrate, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, filler in 2.0: (0-1.0): (0-1.0): (0-1.0): ratio (0-1.0) (weight part) mixes, and makes melting charge slurry under 145 ℃～175 ℃ Heating temperature in melt mixer.
The middle trace element that farm crop need seldom but to improving crop yield, improves crop quality and has certain effect.In the preparation melting charge slurry, can add an amount of moderate-element compound and trace compound, in obtaining containing, the granular compound fertilizer material of micronutrient, in, trace compound is one or more mixtures that are selected from calcium cpd, magnesium compound, sulphur compound, manganic compound, molybdenum compound, zn cpds, iron cpd, copper compound, the boron compound.
Described nitrogenous fertilizer is ammonium chloride, ammonium sulfate, and phosphate fertilizer is monoammonium phosphate, and potash fertilizer is Repone K, vitriolate of tartar, and filler is clay, Paris white, ground dolomite.
Can add an amount of dyestuff and make color grains composite fertilizer in the preparation melting charge slurry, described dyestuff is a matching stain, as Xylene Red, acid orchid, erie black, turmeric yellow etc.The add-on of dyestuff and the ratio of fertilizer are (0.0001-0.0003): 1 (weight part).
The product of being produced by method of the present invention can be a nitrogen phosphorus potassium Nitrogen, Phosphorus and Potassium, also can be nitrogen phosphorus or binary compound fertilizer containing nitrogen and potassium.
The compound manure that the inventive method is produced, its available nutrient content (N+P
2O
5+ K
2O) 〉=25%.
The present invention also provides the equipment of realizing aforesaid method, this equipment comprises prilling tower, melt mixer and prilling spry, it is characterized in that, described prilling tower is that tower height is the high tower of 45-125m, specifically, the prilling tower body of the tower is the square column type of inner hollow or cylindrical, and wherein square tower bottom size (long * wide) is (4-25m) * (4-25m), circular tower bottom diameter is 4-25m, is provided with air inlet device at the prilling tower inner bottom part.
The steam heating power of melt mixer is 150-650kw, and the speed of mainshaft is 20-175rpm; Prilling spry is rotary differential prilling spry, and the rotating speed of shower nozzle is 150～450rpm.
Contribution of the present invention is that it has changed traditional high tower prilling can only produce straight fertilizer, has realized producing polyelement composite fertilizer by high tower.Compare with existing high tower prilling manufacturing urea, ammonium nitrate fertilizer, the present invention has following distinguishing feature:
One, the nitrogen phosphorus potassium of method production of the present invention or nitrogen potassium or nitro phosphor complex are more comprehensive than the straight fertilizer nutritive element, so fertilizer efficiency is remarkable;
Two, this method utilizes urea or ammonium nitrate can generate the characteristics of eutectic compound with sulphur ammonium, potash fertilizer, has therefore reduced melt temperature effectively, has saved the energy;
Three, this method organically combines high tower prilling and compound fertilizer production technology technology, has realized by producing compound fertilizer by high tower granulating;
Four, equipment of the present invention has simple in structurely, is easy to installation and maintenance, characteristics such as cost is low.
Five, owing to cancelled drying process and refrigerating work procedure, thereby can save the investment and the process cost of drying and cooling apparatus, not have a large amount of exhaust emissionss when producing simultaneously, good operational environment belongs to process for cleanly preparing.
Description of drawings
Fig. 1 is the device structure synoptic diagram that high tower prilling of the present invention is produced granular composite fertilizer.
Embodiment
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
Embodiment 1
As shown in Figure 1, granulation comprises high tower 1, melt mixer 2, prilling spry 3 with equipment, and wherein high tower is a hollow cylindrical, and it highly is 80 meters, and base diameter is 10 meters.Be fixed with a plurality of air inlet devices 4 at tower bottom by the support that is fixed in ground, this air inlet device is a centrifugal blower, and they are uniformly distributed on the conplane circumference of tower body, and its air-flow that makes progress of sending can descend the granulation material lentamente.Melt mixer is fixed in back up pad 5 tops of leaning on the top in the tower with support, and it selects conventional products for use, and its steam heating power is 400kw, and the speed of mainshaft is 100rpm.Prilling spry is rotary differential prilling spry, and it is connected with melt mixer, and is fixed in the bottom of back up pad 5, and the rotating speed of shower nozzle is 300rpm.
Getting solid urea 4.5kg, ammonium sulfate 1.0kg, monoammonium phosphate 2.0kg, ground dolomite 2.5kg, magnesium sulfate monohydrate 0.1kg, manganous sulfate 0.01kg and returning charge joins in the melt mixer, be heated to 130 ℃, make melting charge slurry, melting charge slurry is sprayed by the cat head shower nozzle and is entered the prilling tower granulation, the granulation material obtains the qualified particle of 1-4mm by screening, and this qualified particle enters the face powder machine again to carry out the surface conditioning and promptly obtain qualified product.Get back to melt mixer as returning charge together after fine powder material after the screening and the macrobead fragmentation, this product is a white granular nitro phosphor complex product, and it contains N24.68%, P
2O
59.96%, moisture 0.6% contains magnesium, sulphur moderate-element and manganese microelement simultaneously, and product particle intensity is 29N.
Equipment is with embodiment 1.
Getting solid ammonium nitrate 4.9kg, Repone K (redness) 3.0kg, Paris white 2.1kg, calcium sulfate 0.5kg, ferric sulfate 0.2kg, zinc sulfate 0.1kg, azogeramine .5g and returning charge joins in the melt mixer, be heated to 170 ℃ and make melting charge slurry, melting charge slurry is sprayed by the cat head shower nozzle and is entered the prilling tower granulation, the granulation material obtains the qualified particle of 1-4mm by screening, and this qualified particle enters the face powder machine again to carry out the surface conditioning and promptly obtain qualified product.Get back to melt mixer as returning charge together after fine powder material after the screening and the macrobead fragmentation.This product is red composite N-K fertilizer product, and it contains N15.42%, K
2O18.42%, moisture 0.87% contains calcium, sulphur moderate-element and iron, zinc microelement simultaneously, product particle intensity 24N.
Equipment is with embodiment 1.
Getting urea melt (outlet of urea plant flash evaporator) 5.1kg, vitriolate of tartar 1.5kg, Repone K (white) 1.25kg, monoammonium phosphate 2.0kg, clay 1.5kg, copper sulfate 0.015kg, ammonium molybdate 0.01kg and returning charge joins in the melt mixer, be heated to 122 ℃ and make melting charge slurry, melting charge slurry is sprayed by the cat head shower nozzle and is entered the prilling tower granulation, the granulation material obtains the qualified particle of 1-4mm by screening, and this qualified particle enters the face powder machine again to carry out the surface conditioning and promptly obtain qualified product.Get back to melt mixer as returning charge together after fine powder material after the screening and the macrobead fragmentation.This product is white nitrogen-phosphorus-potassium compound fertilizer, and it contains N25.15%, P
2O
510.02%, K
2O14.20% contains sulphur moderate-element and copper, molybdenum trace element simultaneously, product particle intensity 32N.
Equipment is with embodiment 1.
Get ammonium nitrate melt 3.5kg, ammonium chloride 1.5kg, monoammonium phosphate 1.2kg, Repone K (white) 1.2kg, ground dolomite 2.65kg, magnesium sulfate monohydrate 0.30kg, ammonium molybdate 0.01kg, acid blue dyestuff 1.0g and returning charge and join in the melt mixer, be heated to 125 ℃ and make melting charge slurry.Melting charge slurry is sprayed by the cat head shower nozzle and is entered the prilling tower granulation, and the granulation material obtains the qualified particle of 1-4mm by screening, and this qualified particle enters the face powder machine again to carry out surface and nurse one's health and promptly obtain qualified product.Get back to melt mixer as returning charge together after fine powder material after the screening and the macrobead fragmentation, this product is blue look NpK complex fertilizer product, and it contains N16.26%, P
2O
55.79%, K
2O6.95% contains magnesium, sulphur moderate-element and molybdenum trace element simultaneously, and product particle intensity is 28N.
Claims (10)
1, a kind of high tower prilling is produced the method for granular composite fertilizer, it is characterized in that it comprises the steps:
A, will produce urea-base compound fertilizer or raw material that nitro-compound fertilizer uses and the fusion of filler Hybrid Heating;
B, melting charge slurry are sprayed by high column overhead rotating granulation shower nozzle and are entered in the prilling tower;
C, slip from cat head decline process with the gas-flow resistance effect of rising under drop to tower slowly at the bottom of, and finish granulation;
2, the method for claim 1 is characterized in that, described urea-base compound fertilizer be by urea, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, filler in 1.5: (0-1.0): (0-1.0): (0-1.0): ratio (0-1.0) (weight part) mixes.
3, as claim 1 described method, it is characterized in that, described nitro-compound fertilizer be by ammonium nitrate, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, filler in 2.0: (0-1.0): (0-1.0): (0-1.0): ratio (0-1.0) (weight part) mixes.
4, method as claimed in claim 2 is characterized in that, urea, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, filler are made melting charge slurry in melt mixer under 100 ℃～145 ℃ Heating temperature.
As claim 3 described methods, it is characterized in that 5, ammonium nitrate, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, filler are made melting charge slurry under 145 ℃～175 ℃ Heating temperature in melt mixer.
6, as claim 4 or 5 described methods, it is characterized in that, in the preparation melting charge slurry, can add an amount of moderate-element compound and trace compound, in obtaining containing, the granular compound fertilizer material of trace element, in, trace compound is one or more mixtures that are selected from calcium cpd, magnesium compound, sulphur compound, manganic compound, molybdenum compound, zn cpds, iron cpd, copper compound, the boron compound.
As arbitrary described method in the claim 1 to 5, it is characterized in that 7, described nitrogenous fertilizer is ammonium chloride, ammonium sulfate, phosphate fertilizer is monoammonium phosphate, and potash fertilizer is Repone K, vitriolate of tartar, and filler is clay, Paris white, ground dolomite.
8, as claim 4 or 5 described methods, it is characterized in that, can add an amount of dyestuff and make color grains composite fertilizer in the preparation melting charge slurry, described dyestuff is a matching stain, and the add-on of dyestuff and the ratio of fertilizer are (0.0001-0.0003): 1 (weight part).
9, a kind of equipment of realizing the described method of claim 1, comprise prilling tower, melt mixer and prilling spry, it is characterized in that, described prilling tower is that tower height is the high tower of 45-125m, its body of the tower is the square column type of inner hollow or cylindrical, wherein square tower bottom size (long * wide) is (4-25m) * (4-25m), and circular tower bottom diameter is 4-25m; Be provided with air inlet device at the prilling tower inner bottom part.
10, equipment as claimed in claim 9 is characterized in that, the steam heating power of melt mixer is 150-650kw, and the speed of mainshaft is 20-175rpm; Prilling spry is rotary differential prilling spry, and the rotating speed of shower nozzle is 150～450rpm.
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| CN100345619C (en) * | 2004-12-31 | 2007-10-31 | 深圳市芭田生态工程股份有限公司 | Prilling tower for producing granular fertilizer |
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Assignee: Guigang Batian Ecology Co.,Ltd. Assignor: SHENZHEN BATIAN ECOTYPIC ENGINEERING Co.,Ltd. Contract record no.: 2010450000007 Denomination of invention: Method of producing granular composite fertilizer using high tower pellatizer and equipment Granted publication date: 20050803 License type: Exclusive License Open date: 20040218 Record date: 20100521 |
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Application publication date: 20040218 Assignee: GUANGZHOU KAIMIRUI FERTILIZER Co.,Ltd. Assignor: Shenzhen Quanwei Intellectual Property Operations Co.,Ltd. Contract record no.: X2021980016543 Denomination of invention: Method and equipment for producing granular compound fertilizer by high tower granulation Granted publication date: 20050803 License type: Common License Record date: 20220107 |
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