CN102584443A - Fluidized bed coated slow-release fertilizer producing device with double coating liquid ejectors - Google Patents
Fluidized bed coated slow-release fertilizer producing device with double coating liquid ejectors Download PDFInfo
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- CN102584443A CN102584443A CN2012100340023A CN201210034002A CN102584443A CN 102584443 A CN102584443 A CN 102584443A CN 2012100340023 A CN2012100340023 A CN 2012100340023A CN 201210034002 A CN201210034002 A CN 201210034002A CN 102584443 A CN102584443 A CN 102584443A
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Abstract
The invention relates to a fluidized bed coated slow-release fertilizer producing device with double coating liquid ejectors. The main body of the device is an inverted conical vertical tank body which is divided into a lower fluidizing gas system, a middle fluidizing coating system and an upper negative pressure gas extraction system, wherein the fluidizing gas system consists of a gas chamber, a small hole gas flow distribution plate, a large hole gas flow distribution plate, a hot air compressor and a gas inlet pipe; the fluidizing coating system consists of a bottom plate, the coating liquid ejector A, the coating liquid ejector B, an upper feed port, a lower discharge port, a transparent window, air pumps and hydraulic pumps; and the negative pressure gas extraction system is conical and is provided with a screen, a draught fan and an exhaust pipe. The device can be applied to the coating production of a granular fertilizer, and the fertilizer is uniformly coated and quickly dried; two kinds of coating liquids can be used successively, so that the requirement of double-layer coating is met; and dust and pollution are avoided, and the work environment is improved.
Description
Technical field
The present invention relates to a kind of fluidized-bed that has double-contracting film fluid injector and produce the film-coated and slow release fertilizer device.
Background technology
Film-coated controlled release fertilizer is can control the film that nutrient discharges through wrapping one deck for the readily avaiable fertilizer particle as a kind of main novel sustained-controll-release fertiliser, reaches control or delays the purpose that nutrient discharges.Its mechanism is that soil moisture gets into from fenestra, dissolves a part of nutrient, discharges through fenestra then.
The performance of coated fertilizer depends mainly on coated fertilizer and coating process, solves coated fertilizer and covers equably the slow-release period that not only can improve coated fertilizer effectively on the granulated fertilizer surface, and can reduce the production cost of coated fertilizer.
The present invention provides a kind of granulated fertilizer coating device based on fluidization; This technology is according to spraying, surface-coated, curing principle; Through to the vaporific coating liquid of the granulated fertilizer surface sprinkling of fluidized state, reach the purpose of producing even rete coated fertilizer.
Summary of the invention
The technical problem that the present invention will solve is to provide a kind of fluidized-bed that has double-contracting film fluid injector to produce the special-purpose coating device of film-coated and slow release fertilizer, utilizes this device can effectively solve the problems such as spray gun obstruction that the double-deck secondary coating of different components causes.The principle of this device is that granulated fertilizer is in fluidized state under the acting in conjunction of induced draft fan, air; Coating liquid A is formed the first layer coating through the surface that coating liquid injector A is sprayed at granulated fertilizer; Drying and forming-film under the effect of warm air; Then utilize coating liquid injector B that the surface that coating liquid B is sprayed at granulated fertilizer is formed second layer coating again, the drier slow release fertilizer that forms double-deck even secondary coating under the effect of warm air.
For realizing that the technical scheme that the object of the invention adopts is: the coating device main body is the vertical tank body of a back taper; Be divided into the fluidizing agent system of bottom, the fluidisation coating system at middle part and the negative pressure ventilation system on top, contain in the fluidisation coating system at wherein said middle part opening relative the identical coating liquid injector A of structure, coating liquid injector B be set.
Described fluidizing agent system; Constitute by gas compartment, aperture airflow-distribution board, macropore airflow-distribution board and with outer warm air compressor and the inlet pipe of jar; The macropore airflow-distribution board is positioned at the below of aperture airflow-distribution board, the top of gas compartment, and the air that the warm air compressor produces is sent into gas compartment through inlet pipe; Pass the fluidisation coating system that gets into the tank body middle part behind macropore airflow-distribution board, the aperture airflow-distribution board successively; Along with flowing of powerful air, the granulated fertilizer in the middle part of the tank body is blown afloat, warm air plays the effect that granulated fertilizer behind the coating is dried up again simultaneously.
Described fluidisation coating system is by the base plate that is positioned at the bottom, coating liquid injector A, coating liquid injector B, go up opening for feed, lower discharge port, transparent window, pneumatic pump and hydro-pump and constitute.Base plate is rounded, is evenly distributed with fine hole, after the granulated fertilizer charging position on it, the aperture of fine and closely woven distribution can make the gas compartment air up; Coating liquid injector A and coating liquid injector B are positioned on the axis of the vertical tank body of back taper, the relative setting of top opening of base plate, and the external transfer lime of air by one group of permanent seat, guide cylinder, nozzle, the external transfer lime of coating liquid and the atomizing of auxiliary coating liquid constitutes respectively; Permanent seat is one " L " shape, and an end is fixed on the tank skin of tank body, and the other end is the fixed support of guide cylinder and nozzle, is provided with coating liquid transport pipe and airflow pipe in the permanent seat, can with nozzle in be that the transport pipe of " people " font is corresponding to be connected mutually.Have the coating liquid jet orifice on the nozzle; The coating liquid hydro-pump is through being the transport pipe of " people " font in the coating liquid transport pipe in the external transfer lime connection of the coating liquid permanent seat, the nozzle; Finally the coating liquid jet orifice forms the passage that connects; The pneumatic pump of auxiliary coating liquid atomizing connects the transport pipe that is " people " font in the interior airflow pipe of permanent seat, the nozzle, and the coating liquid jet orifice forms the passage that connects finally.Guide cylinder is a tubular structure, upper and lower opening, and lower opening is seated on the permanent seat.Last opening for feed, lower discharge port are provided with the last feeding gate and the bottom discharge door of sealing, after charging, the discharging hermatic door are fastened, with anti-gas-leak.Transparent window is arranged on the tank skin, through transparent window, can observe the fluidized state of reinforced situation and granulated fertilizer.
Described negative pressure ventilation system is positioned at the top of tank body, and is coniform, is one 100 purpose screen clothes on the circular cone bottom surface, can prevent flour dust overflow; The circular cone upper bottom surface is provided with induced draft fan, and the body of outside tank body, bleeding makes tank body be the certain negative pressure state, helps the fluidisation of granulated fertilizer; The gas that induced draft fan is extracted out is discharged by vapor pipe.
Described a kind of special-purpose coating device of film-coated and slow release fertilizer of producing can be exclusively used in the production of granulated fertilizer coating.
Adopt structure of the present invention, have: 1, produce applicable to the particles with different sizes fertilizer coating, coating is even, fast drying; 2, can successively use two kinds of different coating liquids, realize the requirement of double-deck coating, need not to change jar and clear jar; 3, owing to belong to " locked in " operation, no dust is pollution-free, has improved Working environment.
Description of drawings
Fig. 1 produces film-coated and slow release fertilizer device longitudinal sectional drawing for a kind of fluidized-bed that has double-contracting film fluid injector of the present invention.
Fig. 2 produces the external sight schematic perspective view of film-coated and slow release fertilizer shelf jar for a kind of fluidized-bed that has double-contracting film fluid injector of the present invention.
Fig. 3 produces film-coated and slow release fertilizer device coating liquid emitter construction longitudinal sectional drawing for a kind of fluidized-bed that has double-contracting film fluid injector of the present invention.
Embodiment
Combine embodiment that the present invention is further described with reference to the accompanying drawings.
Among Fig. 1,1 is vapor pipe, and the gas that induced draft fan is extracted out is discharged by vapor pipe; 2 is induced draft fan; 3 is screen cloth; 4 is last opening for feed; 5 is coating liquid injector A; 6 is tank body; 7 is coating liquid injector B; 8 is lower discharge port; 9 for being evenly distributed with the base plate of fine hole, rounded; 10 is the aperture airflow-distribution board; 11 is the macropore airflow-distribution board; 12 is pneumatic pump A; 13 is hydro-pump A; 14 is pneumatic pump B; 15 is hydro-pump B; 16 is the warm air compressor; 17 is inlet pipe; 18 is gas compartment.
Among Fig. 2,1 is vapor pipe, and the gas that induced draft fan is extracted out is discharged by vapor pipe; 19 is last feeding gate; 20 are the bottom discharge door; 21 is transparent window.
Among Fig. 3,22 is guide cylinder; 23 is to have the coating liquid jet orifice on the nozzle; 24 is nozzle; 25 is permanent seat, is short " L " type, and an end is fixed on the tank skin of tank body, and the other end is the support of guide cylinder and nozzle; 26 is the airflow pipe that is provided with in the permanent seat; 27 is the coating liquid transport pipe that is provided with in the permanent seat.
Preparation urea individual layer coated slow release fertilizer.
According to technical scheme of the present invention and accompanying drawing structure, process the special-purpose coating device of described production film-coated and slow release fertilizer.
In use, the particle diameter that takes by weighing 100 kilograms be 7 millimeters granular urea fertilizer in tank body 6, close last feeding gate 19 and bottom discharge door 21 in the tank body 6; Open warm air compressor 16, induced draft fan 2 and pneumatic pump 14 successively, through the sulfuration situation of transparent window 20 observation granulated fertilizers; When hot air temperature reaches 95 ℃; Utilize coating liquid hydro-pump 15; The Synolac for preparing in advance 24 pairs of granulated fertilizers of nozzle through coating liquid injector B are sprayed; After the granulated fertilizer surface forms the film of layer of even, desired thickness, turn off coating liquid hydro-pump 15 switches and stop the coating liquid sample introduction; Delayed time 3～8 minutes, and then closed warm air compressor 16, induced draft fan 2 successively, open bottom discharge door 21, take out urea individual layer coated slow release fertilizer, completed product run.
Embodiment 2
The double-deck coated slow release fertilizer of preparation potassiumphosphate.
Used granulated fertilizer is a potassiumphosphate, and the coating agent is a Synolac.Through device of the present invention and with embodiment 1 identical operations step.
In embodiment 1 operation steps, turn off coating liquid hydro-pump 15 switches and stop the coating liquid sample introduction; Delay time after 8 minutes; Close pneumatic pump 14, open pneumatic pump 12 and coating liquid hydro-pump 13, utilize Synolac that coating liquid hydro-pump 13 will prepare in advance to spray through 24 pairs of granulated fertilizers of nozzle of coating liquid injector A; Form the second layer uniformly, behind the film of desired thickness, turn off coating liquid hydro-pump 13 switches and stop the coating liquid sample introduction until granulated fertilizer surface; Delayed time 8 minutes, and then closed warm air compressor 16, induced draft fan 2 and pneumatic pump 14 successively, open bottom discharge door 21, take out the double-deck coated slow release fertilizer of potassiumphosphate, completed product run.
Claims (7)
1. a fluidized-bed that has double-contracting film fluid injector is produced the film-coated and slow release fertilizer device; It is characterized in that the coating device main body is the vertical tank body of a back taper; Be divided into the fluidizing agent system of bottom, the fluidisation coating system at middle part and the negative pressure ventilation system on top, contain in the fluidisation coating system at wherein said middle part opening relative the identical coating liquid injector A of structure, coating liquid injector B be set.
2. a kind of fluidized-bed that has double-contracting film fluid injector according to claim 1 is produced the film-coated and slow release fertilizer device; It is characterized in that described fluidizing agent system; Constitute by gas compartment, aperture airflow-distribution board, macropore airflow-distribution board and with outer warm air compressor and the inlet pipe of jar, the macropore airflow-distribution board is positioned at the below of aperture airflow-distribution board, the top of gas compartment.
3. a kind of fluidized-bed that has double-contracting film fluid injector according to claim 1 is produced the film-coated and slow release fertilizer device; It is characterized in that described fluidisation coating system; Be made up of the base plate that is positioned at the bottom, coating liquid injector A, coating liquid injector B, last opening for feed, lower discharge port, transparent window, pneumatic pump and hydro-pump, base plate is positioned at the bottom of fluidisation coating system; Last opening for feed, lower discharge port are arranged on the sidewall of tank body, are provided with the last feeding gate and the bottom discharge door of sealing simultaneously; Transparent window is arranged at the tank skin middle part.
4. a kind of fluidized-bed that has double-contracting film fluid injector according to claim 3 is produced the film-coated and slow release fertilizer device, it is characterized in that described base plate is rounded, is evenly distributed with fine hole.
5. a kind of fluidized-bed that has double-contracting film fluid injector according to claim 3 is produced the film-coated and slow release fertilizer device; It is characterized in that described coating liquid injector A or coating liquid injector B, constitute by one group of permanent seat, guide cylinder, nozzle, the external transfer lime of coating liquid, the external transfer lime of air, hydro-pump and pneumatic pump; Permanent seat one end is fixed on the tank skin of tank body, and the other end is the support of guide cylinder and nozzle, is provided with coating liquid transport pipe and airflow pipe in the permanent seat; Have the coating liquid jet orifice on the nozzle; The coating liquid hydro-pump is through being the transport pipe of " people " font in the coating liquid transport pipe in the external transfer lime connection of the coating liquid permanent seat, the nozzle, the coating liquid jet orifice forms the passage that connects finally; The pneumatic pump of auxiliary coating liquid atomizing connects the transport pipe that is " people " font in the interior airflow pipe of permanent seat, the nozzle, and the coating liquid jet orifice forms the passage that connects finally; Guide cylinder is a tubular structure, upper and lower opening, and lower opening is seated on the permanent seat.
6. a kind of fluidized-bed that has a double-contracting film fluid injector according to claim 1 is produced the film-coated and slow release fertilizer device, it is characterized in that described negative pressure ventilation system, is positioned at the top of tank body, and coniform, the circular cone bottom surface is provided with 100 purpose screen clothes; The circular cone upper bottom surface is provided with induced draft fan; The gas that induced draft fan is extracted out is discharged by vapor pipe.
7. a kind of fluidized-bed that has double-contracting film fluid injector according to claim 1 is produced the film-coated and slow release fertilizer device, it is characterized in that described a kind of special-purpose coating device of film-coated and slow release fertilizer of producing, and can be exclusively used in the production of granulated fertilizer coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100340023A CN102584443A (en) | 2012-02-16 | 2012-02-16 | Fluidized bed coated slow-release fertilizer producing device with double coating liquid ejectors |
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| CN2012100340023A CN102584443A (en) | 2012-02-16 | 2012-02-16 | Fluidized bed coated slow-release fertilizer producing device with double coating liquid ejectors |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773084A (en) * | 2013-12-30 | 2014-05-07 | 福建师范大学 | Preparation method for synthesizing sheet-type cladding material by fluidized bed gas-phase method |
| CN104193504A (en) * | 2014-08-07 | 2014-12-10 | 安徽省荆涂机电工程有限公司 | Method for fluidized coating of fertilizer |
| CN104557280A (en) * | 2014-12-23 | 2015-04-29 | 扬州雷鸥电业有限公司 | Multi-layer sedimentation type coating and drying device and method for preparation of coated fertilizer |
| CN105985198A (en) * | 2015-02-06 | 2016-10-05 | 吉林师范大学 | Coated nitrogen fertilizer with regular release and preparation method thereof |
| CN107892628A (en) * | 2017-11-10 | 2018-04-10 | 东南大学 | A kind of preparation method and device of charcoal film-coated and slow release fertilizer |
| CN109096003A (en) * | 2018-11-01 | 2018-12-28 | 北京市农林科学院 | A kind of automatic continuous coating controlled-release fertilizer process units of rotary drum |
| CN111440036A (en) * | 2020-03-13 | 2020-07-24 | 淮安市建筑工程质量检测中心有限公司 | Gas-assisted fertilizer coating device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773084A (en) * | 2013-12-30 | 2014-05-07 | 福建师范大学 | Preparation method for synthesizing sheet-type cladding material by fluidized bed gas-phase method |
| CN103773084B (en) * | 2013-12-30 | 2015-05-20 | 福建师范大学 | Preparation method for synthesizing sheet-type cladding material by fluidized bed gas-phase method |
| CN104193504A (en) * | 2014-08-07 | 2014-12-10 | 安徽省荆涂机电工程有限公司 | Method for fluidized coating of fertilizer |
| CN104557280A (en) * | 2014-12-23 | 2015-04-29 | 扬州雷鸥电业有限公司 | Multi-layer sedimentation type coating and drying device and method for preparation of coated fertilizer |
| CN104557280B (en) * | 2014-12-23 | 2017-07-07 | 扬州雷鸥电业有限公司 | A kind of multilayer sedimentation type prepares the coating drying unit and method of coated fertilizer |
| CN105985198A (en) * | 2015-02-06 | 2016-10-05 | 吉林师范大学 | Coated nitrogen fertilizer with regular release and preparation method thereof |
| CN107892628A (en) * | 2017-11-10 | 2018-04-10 | 东南大学 | A kind of preparation method and device of charcoal film-coated and slow release fertilizer |
| CN109096003A (en) * | 2018-11-01 | 2018-12-28 | 北京市农林科学院 | A kind of automatic continuous coating controlled-release fertilizer process units of rotary drum |
| CN109096003B (en) * | 2018-11-01 | 2023-10-17 | 北京市农林科学院 | Automatic continuous film-coated controlled-release fertilizer production device with rotary drum |
| CN111440036A (en) * | 2020-03-13 | 2020-07-24 | 淮安市建筑工程质量检测中心有限公司 | Gas-assisted fertilizer coating device |
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Application publication date: 20120718 |