CN103420699A - Device for preparing sulfur-based compound fertilizer - Google Patents
Device for preparing sulfur-based compound fertilizer Download PDFInfo
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- CN103420699A CN103420699A CN2013103297104A CN201310329710A CN103420699A CN 103420699 A CN103420699 A CN 103420699A CN 2013103297104 A CN2013103297104 A CN 2013103297104A CN 201310329710 A CN201310329710 A CN 201310329710A CN 103420699 A CN103420699 A CN 103420699A
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Abstract
The invention discloses a device for preparing sulfur-based compound fertilizer, which comprises a mixing agitator used for uniformly mixing and stirring raw materials, a crusher used for smashing large caking material uniformly mixed and stirred, and arranged above a granulating machine, the granulating machine used for granulating material uniformly stirred and smashed, a slurry distributor used for spraying slurry on a material bed of the granulating machine, a dryer connected with the granulating machine and used for drying granulated material produced by the granulating machine, a preneutralization tail material washing machine used for preparing preneutralization slurry to be sent to the slurry distributor, a urea spraying cylinder for supplying nitrogen to finished particles at a delivering part of the dryer, and a sieving machine connected with the dryer through a conveyor belt and used for screening the nitrogen added finished particles. According to the invention, the product quality is stable, the particles are uniform, the operation rate of the device is stabilized to be more than 98 %, the ammonia yield coefficient achieves 99 %, the potassium yield coefficient achieves 99.9 %, meanwhile no sewage is discharged, and the clean production is realized.
Description
Technical field
The present invention relates to composite fertilizer's production technical field, relate in particular to a kind of Unit for Production of Sulfate-Based Compound Fertilizers.
Background technology
Existing production of sulfur-based compound fertilizer technique is general directly introduces potassium nutrition production sulfur ternary composite fertilizer with the commodity vitriolate of tartar, and production cost is higher, and the product nutrient is unbalanced.In order to overcome above-mentioned shortcoming, developed the production technique of producing S-based compound fertilizer by kcl low temperature conversion method: solid Repone K and the vitriol oil through accurate-metering add conversion tank, carry out conversion reaction under heated condition, the KHSO4 solution overflow generated enters the nitration mixture groove, allocate at this phosphoric acid washing liquid that dry washing procedure of NPK produces into, the nitration mixture pumping formed enters the pre-neutralization groove, through logical ammonia neutralization reaction (degree of neutralization 0.6～0.8), generate pre-neutralization NPK slip, enter the granulation tubular reactor through pumping, complete neutralization reaction (degree of neutralization 1.6～1.8) at this further logical ammonia, on the material bed that the NPK slip reacted completely rolls at tablets press by nozzles spray, through coating, bonding and on a small quantity from granulating, (general particle consists of 2～4mm and accounts for 50～70% the NPK solid materials generated, ﹥ 4mm10～25%, ﹤ 2mm10～20%, moisture 4～6%), drying (moisture be down to 2% once), the two-stage screening, get the finished product particle and mend nitrogen through spray urine cylinder successively, after parcel cylinder parcel oil-bound distemper coating, the fine screen screening, 2～4mm finished product is sent to packing.Deliver to tablets press as returning charge after the macroparticle of the fine particle of screening, fragmentation, the fine powder of dedusting and part finished product mix and do masterbatch.What granulation process and drying process produced contains ammonia, NPK dust tail gas through whirlwind dry method dust, two-stage Venturi and the wet scrubbing of one-level washing tower, tail gas qualified discharge.
Yet this production technique production capacity is not high, daily output can only reach 300t, and the nutrient fluctuation is large, and the product pellet outward appearance is poor, and the system driving rate is lower, obstruction is frequent, and the cleaning work amount is large, and production environment is severe, urgently improves.
Summary of the invention
The problem existed for prior art, the object of the invention is to propose a kind of Unit for Production of Sulfate-Based Compound Fertilizers, and to improve production capacity, balanced nutrient, improve production environment.
A kind of Unit for Production of Sulfate-Based Compound Fertilizers comprises: mixing and blending machine, crusher, tablets press, slip device for distributing, drying machine, pre-neutralization tail are washed machine, spray urine cylinder and sieve apparatus;
Described mixing and blending machine, for by the raw material mixing and stirring;
Described crusher, the material stirred of carrying for receiving described mixing and blending machine, pulverize the material bulk of mixing and stirring caking; And described crusher is arranged in described tablets press top, broken rear material directly enters described tablets press;
Described tablets press, carry out granulation for the material after stirring, crushing;
Described slip device for distributing, for material spray slurry on the material bed to described tablets press;
Described drying machine, be connected with described tablets press by transport tape, for the granulating dry materials that tablets press is generated;
Described pre-neutralization tail is washed machine, for generating the pre-neutralization slip, delivers to described slip device for distributing;
Described spray urine cylinder, mend nitrogen to the finished product particle of described drying machine conveying place;
Described sieve apparatus, be connected with described drying machine by transport tape, and the finished product particle after benefit nitrogen is sieved.
Preferably, described tablets press inner shield ring height is 350～480mm.
Preferably, in described tablets press, granulation zone accounts for 6000～7500mm, and polishing area accounts for 1500～3000mm.
Preferably, described drying machine afterbody increases trommel screen.
Preferably, described pre-neutralization tail is washed machine and is set up the hot wash device.
Preferably, described pre-neutralization tail is washed machine and is set up the displacement pipeline, for when washings proportion is too high or degree of neutralization when higher, makes washings return to tank field by pumping and stores, and supplement dilute phosphoric acid simultaneously and replaced.
Preferably, in described spray urine cylinder, two collets are increased respectively 50～120mm.
Preferably, described crusher is the chain type pulverizer.
Preferably, described tablets press is rotary drum granulator, pair roller Squeezinggranulator or granulating disc.
Preferably, described mixing and blending machine is horizontal mixer or pan mixer.
In the present invention, constant product quality, particle is even, and the device driving rate is stabilized in more than 98%, and the ammonia yield reaches 99%, the potassium yield has reached 99.9%, there is no sewage discharge simultaneously, has realized cleaner production.
The accompanying drawing explanation
Fig. 1 is a kind of Unit for Production of Sulfate-Based Compound Fertilizers structure iron in the embodiment of the present invention.
10, mixing and blending machine; 20, crusher; 30, tablets press; 40, the slip device for distributing; 50, drying machine; 60, spray urine cylinder; 70, sieve apparatus; 80, the pre-neutralization tail is washed machine.
Embodiment
The embodiment of the present invention provides a kind of Unit for Production of Sulfate-Based Compound Fertilizers, as shown in Figure 1, comprising: mixing and blending machine 10, crusher 20, tablets press 30, slip device for distributing 40, drying machine 50, pre-neutralization tail are washed machine 80, spray urine cylinder 60 and sieve apparatus 70.Wherein, described mixing and blending machine 10, be used for the raw material mixing and stirring, wherein, raw material generally can select urea, ammonium nitrate, ammonium chloride, sulphur ammonium, phosphorus ammonium, Repone K (vitriolate of tartar) etc. to be equipped with by a certain percentage, the raw material stirring prepared evenly can be improved to the even fertilizer efficiency content of fertiliser granulates integral body; Described crusher 20, the material stirred of carrying for receiving described mixing and blending machine 10, pulverize the material bulk of mixing and stirring caking; And described crusher 20 is arranged in described tablets press 30 tops, broken rear material directly enters described tablets press 30; Described tablets press 30, carry out granulation for the material after stirring, crushing; Described slip device for distributing 40, for material spray slurry on the material bed to described tablets press 30; Described drying machine 50, be connected with described tablets press 30 by transport tape, for the granulating dry materials that tablets press 30 is generated; Described pre-neutralization tail is washed machine 80, for generating the pre-neutralization slip, delivers to described slip device for distributing 40; Described spray urine cylinder 60, mend nitrogen to the finished product particle of described drying machine 50 conveyings place; Described sieve apparatus 70, be connected with described drying machine 50 by transport tape, the finished product particle after benefit nitrogen sieved, and screening particle work in-process, underproof particle returns to the reprocessing of mix and blend link; Qualified product is coated with to brightness and the roundness degree that the clothing coating increases particle, makes appearance more beautiful, generally with coating machine, carried out coating; The finished particle quantitative package: the particle that wrapped film namely finished particle is sent into feed bin by rotary conveyor and is temporarily stored, then the automatic quantitative packing envelopes such as connecting electronic ration package scale, sack closer, places ventilation and preserves.
In the embodiment of the present invention, the crusher location-appropriate is raised, can be arranged in the tablets press top, broken rear material directly enters tablets press; Avoided existing scheme crusher to arrange, large grain enters the returning charge bucket and carries after fragmentation, causes the bucket elevator obstruction that frequently scabs, and causes driving rate problem on the low side; The latch up phenomenon that scabs, do not appear in bucket elevator operational excellence after transformation, and driving rate improves 3～5%.
In the embodiment of the present invention, tablets press back-up ring height, by 280mm, is increased to 350～480mm.The tablets press subregion is adjusted, by the back-up ring displacement, by granulation zone account for 8000mm, polishing area accounts for 1000mm, is adjusted into that granulation zone accounts for 6000～7500mm, polishing area accounts for 1500～3000mm.After transformation, packing factor, by 8%, is increased to 15～25% left and right, and throughput significantly improves, and daily output can be stabilized in 390～430 tons.
In the embodiment of the present invention, for sulfenyl nitrogen-phosphorus-potassium slip character, the design specialized shower nozzle, and be applied to produce, slip sprays evenly, and granulating is effect improved obviously, and particle is more even.
In the embodiment of the present invention, drying machine guide flight is optimized, greatly reduces head and leak the material situation; The drying machine afterbody increases trommel screen, and material drying is separated in advance, avoids bulk to fall into after the oven dry bucket is carried and causes equipment and elephant trunk to stop up.
In the embodiment of the present invention, by the pre-neutralization groove, increase the ammonia jet pipe, the neutralization reaction equilibrium is carried out, and has stablized the slip degree of neutralization; Tail is washed into the adjustment of phosphoric acid pipeline location, and increases the hot wash device, and pipeline scale slows down, the conduit running cycle stretch-out; Tail is washed washings increases the displacement pipeline, if washings proportion is too high or degree of neutralization when higher, washings returns to tank field by pumping and stores, and supplements dilute phosphoric acid simultaneously and replaced; Improved system ammonia yield, tail gas can the stably reaching standard discharge.
In the embodiment of the present invention, determine that by analysis production process spray urine cylinder scabs serious, all will be cleared up every day, and the parcel cylinder easily goes out the flower material after the parcel oil mass strengthens a little, the particle irregular colour is even, is to cause due to material filling coefficient deficiency; After two equipment collets are increased to 50～120mm respectively, operating performance is fine, and spray urine cylinder seldom scabs, and the product pellet color is more even.
In the embodiment of the present invention, described crusher is the chain type pulverizer; Described tablets press is rotary drum granulator, pair roller Squeezinggranulator or granulating disc; Described mixing and blending machine is horizontal mixer or pan mixer.
The embodiment of the present invention provides the above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (10)
1. a Unit for Production of Sulfate-Based Compound Fertilizers, is characterized in that, comprising:
Mixing and blending machine, crusher, tablets press, slip device for distributing, drying machine, pre-neutralization tail are washed machine, spray urine cylinder and sieve apparatus;
Described mixing and blending machine, for by the raw material mixing and stirring;
Described crusher, the material stirred of carrying for receiving described mixing and blending machine, pulverize the material bulk of mixing and stirring caking; And described crusher is arranged in described tablets press top, broken rear material directly enters described tablets press;
Described tablets press, carry out granulation for the material after stirring, crushing;
Described slip device for distributing, for material spray slurry on the material bed to described tablets press;
Described drying machine, be connected with described tablets press by transport tape, for the granulating dry materials that tablets press is generated;
Described pre-neutralization tail is washed machine, for generating the pre-neutralization slip, delivers to described slip device for distributing;
Described spray urine cylinder, mend nitrogen to the finished product particle of described drying machine conveying place;
Described sieve apparatus, be connected with described drying machine by transport tape, and the finished product particle after benefit nitrogen is sieved.
2. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, is characterized in that, described tablets press inner shield ring height is 350～480mm.
3. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, is characterized in that, in described tablets press, granulation zone accounts for 6000～7500mm, and polishing area accounts for 1500～3000mm.
4. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, is characterized in that, described drying machine afterbody increases trommel screen.
5. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, is characterized in that, described pre-neutralization tail is washed machine and set up the hot wash device.
6. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, it is characterized in that, described pre-neutralization tail is washed machine and is set up the displacement pipeline, for when washings proportion is too high or degree of neutralization when higher, make washings return to tank field by pumping and store, and supplement dilute phosphoric acid simultaneously and replaced.
7. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, is characterized in that, in described spray urine cylinder, two collets are increased respectively 50～120mm.
8. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, is characterized in that, described crusher is the chain type pulverizer.
9. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, is characterized in that, described tablets press is rotary drum granulator, pair roller Squeezinggranulator or granulating disc.
10. Unit for Production of Sulfate-Based Compound Fertilizers according to claim 1, is characterized in that, described mixing and blending machine is horizontal mixer or pan mixer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310329710.4A CN103420699B (en) | 2013-07-31 | 2013-07-31 | Device for preparing sulfur-based compound fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310329710.4A CN103420699B (en) | 2013-07-31 | 2013-07-31 | Device for preparing sulfur-based compound fertilizer |
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| CN103420699A true CN103420699A (en) | 2013-12-04 |
| CN103420699B CN103420699B (en) | 2015-01-21 |
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| CN201310329710.4A Active CN103420699B (en) | 2013-07-31 | 2013-07-31 | Device for preparing sulfur-based compound fertilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058813A (en) * | 2014-06-06 | 2014-09-24 | 安徽省司尔特肥业股份有限公司 | Production process for sulfenyl nitrogen phosphorus and potassium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101439999A (en) * | 2008-12-31 | 2009-05-27 | 聊城鲁西化工第五化肥厂 | Apparatus for improving nitrogen content of spray granulation compound fertilizer and method for producing high-nitrogen compound fertilizer |
| CN101508607A (en) * | 2009-03-20 | 2009-08-19 | 辽宁华锦化工（集团）有限责任公司 | Process for producing long-acting sustained-release complex fertilizer of urea sulfuric acid |
| CN202430141U (en) * | 2012-01-16 | 2012-09-12 | 杨孝仓 | Production equipment for compound fertilizers |
| CN203461982U (en) * | 2013-07-31 | 2014-03-05 | 安徽省司尔特肥业股份有限公司 | Sulfur-based composite fertilizer production device |
-
2013
- 2013-07-31 CN CN201310329710.4A patent/CN103420699B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439999A (en) * | 2008-12-31 | 2009-05-27 | 聊城鲁西化工第五化肥厂 | Apparatus for improving nitrogen content of spray granulation compound fertilizer and method for producing high-nitrogen compound fertilizer |
| CN101508607A (en) * | 2009-03-20 | 2009-08-19 | 辽宁华锦化工（集团）有限责任公司 | Process for producing long-acting sustained-release complex fertilizer of urea sulfuric acid |
| CN202430141U (en) * | 2012-01-16 | 2012-09-12 | 杨孝仓 | Production equipment for compound fertilizers |
| CN203461982U (en) * | 2013-07-31 | 2014-03-05 | 安徽省司尔特肥业股份有限公司 | Sulfur-based composite fertilizer production device |
Non-Patent Citations (2)
| Title |
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| 廖俊才: "料浆转鼓造粒生产S-NPK工艺条件的选择", 《磷肥与复肥》, vol. 23, no. 6, 15 November 2008 (2008-11-15), pages 49 - 52 * |
| 胡年根: "硫基复合肥装置提质降成本的技术改造", 《磷肥与复肥》, vol. 26, no. 41, 15 July 2011 (2011-07-15), pages 53 - 55 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058813A (en) * | 2014-06-06 | 2014-09-24 | 安徽省司尔特肥业股份有限公司 | Production process for sulfenyl nitrogen phosphorus and potassium |
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