CN101357862A - Fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer - Google Patents
Fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer Download PDFInfo
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- CN101357862A CN101357862A CNA2008101394344A CN200810139434A CN101357862A CN 101357862 A CN101357862 A CN 101357862A CN A2008101394344 A CNA2008101394344 A CN A2008101394344A CN 200810139434 A CN200810139434 A CN 200810139434A CN 101357862 A CN101357862 A CN 101357862A
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Abstract
The invention discloses a continuous fluid-bed for producing a coated controlled release fertilizer, which consists of a plurality of coated towers which are connected sequentially, the openings at the top of the coated towers are connected with each other by a wind pipe and a single coated tower is provided with a porous air distribution plate, a guide shell and a nozzle. The first coated tower is provided with a feed inlet, the last coated tower is provided with a feed outlet and the wall of the adjacent coated towers is provided with side-wall openings, wherein, the feed inlet, the side-wall opening and the feed outlet are arranged at the same vertical section, and from the feed inlet to the feed outlet, the height is gradually lowered from high to low. The equipment and the technique of the invention are used for producing the coated controlled release fertilizer, the operation is simple, continuous production is really realized, tedious operations of valve elements and gate valve switches are avoided, furthermore, the energy consumption is reduced and the production efficiency is improved.
Description
Technical field
The invention belongs to the controlled-release fertilizer production equipment technical field, relate to a kind of fluidized-bed that is suitable for continuously preparing membrane wrapping control-releasing fertilizer.
Background technology
Coating controlled-release fertilizer has become the new direction of fertilizer industry development; the main at present batch production method that adopts; the advantage of batch production is that output is big; the coating good uniformity; but its shortcoming is obvious equally, and energy consumption is higher, in addition; because need constantly to shut down and start, also affect adversely the work-ing life of equipment component.
Have been found that and adopt a kind of " spouted bed " can produce high-quality coating controlled-release fertilizer grain, there is the simple report of similar spouted bed continuous production equipment in the only Japanese at present and U.S., but find that these existing installations have many defectives in use, for example continuous spouted equipment is established a plurality of dressing lattice, every single dressing lattice circulation primary, thereby dressing equipment is comparatively complicated, and handiness is restricted.
The domestic equipment that does not up to the present also have real continuously preparing membrane wrapping control-releasing fertilizer, known have employing " the jet flow tower that a plurality of orders are provided with " intention to realize the purpose that continous way is produced, it mainly designs is that a slide valve to be opened/closed is set in each jet flow tower, and one extend upward and pass the conduit of slide valve in the closing condition of slide valve from contiguous jet flow tower bottom, is provided with an opening by the control of valve element between adjacent jet flow tower.This dressing equipment is by the fertilizer transfer condition in the manual observation jet flow tower, utilize the switching repeatedly of valve element on the adjacent jet flow tower wall and slide valve to realize that fertilizer flow to another jet flow tower from a jet flow tower, and need fixed cycle operator, therefore its complex steps, operation are comparatively complicated, prior this equipment that is to use still needs intermittent type to feed intake, so it fails to realize the continous way production of coating controlled-release fertilizer.
Summary of the invention
At the deficiencies in the prior art, the purpose of this invention is to provide a kind of fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer, be used for the continuous production coating controlled-release fertilizer, solution batch production energy consumption is higher, the shortcoming of the easy loss of equipment.
Two of purpose of the present invention provides the technology of utilizing this kind fluidized-bed to produce coating controlled-release fertilizer.
Fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer of the present invention is made up of the coating tower that a plurality of orders link to each other, and coating top of tower opening connects by airduct, and each coating tower is equipped with perforated distributor, guide shell and shower nozzle.Be provided with opening for feed on first coating tower, last coating tower is provided with discharge port, and adjacent coating tower is communicated with by the sidewall opening on the tower, and opening for feed, sidewall opening and discharge port are positioned on the same vertical section, and reduces one by one from high to low successively.
Above-mentioned each coating top of tower all is provided with the screen cloth of a mesh size 1.5-2.0mm.To prevent that fertiliser granulates is fluidized gas and brings airduct into.
Described perforated distributor is positioned at the coating tower bottom, and there is opening at the perforated distributor center, and shower nozzle passes this open centre and is fixed on the coating tower bottom, establishes guide shell directly over the shower nozzle.
Shower nozzle in the above perforated distributor is single fluid shower nozzle or two-fluid shower nozzle, and the opening at described guide shell caliber size and perforated distributor center matches.
The number of above coating tower is advisable with 2-6.Preferred 3.
In the present device, be provided with perforated distributor and shower nozzle at each coating tower bottom, perforated distributor is used to pass through fluidizing agent, it is shaped as taper (25-35 ° of horizontal sextant angle scope), percentage of open area is 3-8%, its center opening part is provided with the screen cloth of 1.0-2.0mm (mesh size), shower nozzle passes the center fixation of this screen cloth at the coating tower bottom, certain distance is provided with a guide shell directly over shower nozzle, the opening bore of the bore of guide shell and perforated distributor bottom matches, size is consistent, and guide shell length is advisable with 25-50cm;
In the present device, on first coating tower, be provided with and add feed bin and be communicated with opening for feed.
Discharge port on opening for feed on first coating tower, adjacent coating tower wall upper side wall opening and last coating tower position relation in vertical direction is: opening for feed is higher than coating tower wall upper side wall opening, coating tower wall upper side wall opening is higher than discharge port, and tower wall upper side wall aperture position also reduces successively.As shown in Figure 1.
The technology of continuously preparing membrane wrapping control-releasing fertilizer provided by the invention comprises the steps:
A, configure coating solution, open airheater, air compressor machine and induced draft fan and make warm air enter fluidized-bed and constantly circulation;
B, by adding feed bin to the fluidized-bed continuously feeding, fertiliser granulates enters in first coating tower, open the liquid injection valve of first coating tower shower nozzle, under the setting off by contrast of warm air, coating liquid sprays on the fertiliser granulates gradually, reach the height of sidewall opening when fertilizer after, the fertilizer of preliminary coating just enters second coating tower from first coating tower, the liquid injection valve of opening this coating tower continues spraying, after for some time, coated fertilizer can enter the 3rd coating tower through second coating tower side wall opening, and the rest may be inferred, draws off until the discharge port of coated fertilizer from last coating tower;
C, the coated fertilizer packing warehouse-in that will draw off from discharge port are finished the coating process.
The invention has the beneficial effects as follows: use present device to be equipped with other processing units and produce coating controlled-release fertilizer, simple to operate, not only can really realize continous way production, and avoid the troublesome operation of valve element and slide valve switch, cut down the consumption of energy, enhance productivity.
Description of drawings
Fig. 1 is the structural representation of fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer described in the embodiment.Wherein, 1,2,3 is the coating tower, and 4 is guide shell, and 5 is support, and 6 is perforated distributor, and 7 is opening, and 8 is shower nozzle, and 9 for adding feed bin, and 10 is opening for feed, and 11,12 is sidewall opening, and 13 is discharge port, and 14 is screen cloth, and 15 is airduct.
Embodiment
Describe the technical scheme that the present invention proposes in detail below in conjunction with drawings and Examples, but be not limited thereto.
Embodiment
As shown in Figure 1, the membrane wrapping fluidized-bed equipment of this continous way is made up of coating tower 1, coating tower 2 and coating tower 3 that three orders link to each other, three long-pending 0.8m that are all of coating tower section
2, high 5m, its open top links together by airduct 15.
It is 1m that coating tower 1 top is provided with volume
3Add feed bin 9, add feed bin 9 and be connected with coating tower 1 by opening for feed 10, establish discharge gate 11 on coating tower 1 and the sidewall that coating tower 2 links to each other, establish discharge gate 12 on coating tower 2 and the sidewall that coating tower 3 links to each other, also establish discharge port 13 on coating tower 3 sidewalls; Opening for feed 10, sidewall opening 11, sidewall opening 12 and discharge port 13 are on the same vertical section, and their position relation is 13 reductions one by one from high to low from opening for feed 10 to discharge port.
Establish a perforated distributor 6 at each coating tower bottom, the air distribution plate diameter is 1m, approximate taper, horizontal sextant angle is 30 °, and the bottom is provided with the circular open 7 that diameter is 12cm, offers the aperture of diameter 1.0mm on the air distribution plate, and it is big more near bottom circular open density more, percentage of open area is 5%, and air distribution plate bottom circular open seals with the screen cloth of 1.0mm, and two-fluid shower nozzle or single fluid shower nozzle 8 pass bottom screen cloth center fixation at the coating tower bottom.
Directly over the shower nozzle 8 of each coating tower, establish guide shell 4, make shower nozzle 8 be positioned at guide shell 4 central positions, guide shell 4 is fixed on the coating tower by support 5, its diameter is 12cm, length is 30cm, opening on the coating tower side wall is positioned at the perforated distributor upper edge, all is provided with the screen cloth 14 of a 2.0mm at each coating top of tower, to prevent that fertiliser granulates is fluidized gas and brings airduct into.
The above equipment all uses stainless material to make.
Use the process of the membrane wrapping fluidized-bed device fabrication coating controlled-release fertilizer of this continous way to be:
The first step: configure coating solution, open airheater, air compressor machine and induced draft fan, warm air enters membrane wrapping fluidized-bed, and constantly circulation.
Second step: by adding feed bin 9 continuously feeding in fluidized-bed, fertiliser granulates enters in the coating tower 1, open the liquid injection valve of coating tower 1 two-fluid shower nozzle, under the setting off by contrast of warm air, coating liquid sprays on the fertiliser granulates gradually, reach the height of sidewall opening 11 when fertilizer after, the fertilizer of preliminary coating just enters coating tower 2 from coating tower 1 through sidewall opening 11, the liquid injection valve of opening coating tower 2 continues spraying, after for some time, coated fertilizer can enter coating tower 3 through sidewall opening 12, and the liquid injection valve of opening coating tower 3 continues spraying, draws off from discharge port 13 until coated fertilizer.
The 3rd step: will package warehouse-in from the coated fertilizer that discharge port 13 draws off, and finish the coating process.
Fluidized-bed is made of three grades of coating towers in the specific embodiment of the present invention, but this only is a specific example, those of ordinary skill in the art comprises the increase and decrease of coating tower quantity reading any modification of being done behind this specification sheets, all belongs to technology contents disclosed by the invention.
Should be pointed out that embodiment is the more representational example of the present invention, obvious technical scheme of the present invention is not limited to the foregoing description, and a lot of distortion can also be arranged.Those of ordinary skill in the art, with the present invention clear and definite disclosed or according to undoubted the obtaining of the written description of file, all should think the claimed scope of this patent.
Claims (10)
1. fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer is characterized in that, the coating tower that is linked to each other by a plurality of orders constitutes, and coating top of tower opening connects by airduct, and single coating tower is equipped with perforated distributor, guide shell and shower nozzle.
2. according to the described fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer of claim 1, it is characterized in that, on first coating tower, be provided with opening for feed, last coating tower is provided with discharge port, adjacent coating tower is communicated with by the sidewall opening on the tower, opening for feed, sidewall opening and discharge port are positioned on the same vertical section, and reduce one by one from high to low successively.
3. according to claim 1 or 2 described fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer, it is characterized in that described perforated distributor is positioned at the coating tower bottom, there is opening at the center, and shower nozzle passes open centre and is fixed on the coating tower bottom, establishes guide shell directly over the shower nozzle.
4. according to the described fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer of claim 3, it is characterized in that perforated distributor is taper, 25～35 ° of horizontal sextant angles, percentage of open area 3～8%, its center opening part is provided with the screen cloth of mesh size 1.0～2.0mm.
5. according to claim 1 or 2 described fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer, it is characterized in that each coating top of tower all is provided with the screen cloth of mesh size 1.5～2.0mm.
6. according to claim 1 or 2 described fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer, it is characterized in that described shower nozzle is single fluid shower nozzle or two-fluid shower nozzle.
7. according to claim 1 or 2 described fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer, it is characterized in that the opening at described guide shell caliber size and perforated distributor center matches.
8. according to claim 1 or 2 described fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer, it is characterized in that the quantity of described coating tower is 2-6.
9. described according to Claim 8 fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer is characterized in that the quantity of described coating tower is 3.
10. the technology of a continuously preparing membrane wrapping control-releasing fertilizer is characterized by: comprise the steps:
A, configure coating solution, open airheater, air compressor machine and induced draft fan and make warm air enter fluidized-bed and constantly circulation;
B, by adding feed bin to the fluidized-bed continuously feeding, fertiliser granulates enters in first coating tower, open the liquid injection valve of first coating tower shower nozzle, under the setting off by contrast of warm air, coating liquid sprays on the fertiliser granulates gradually, reach the height of sidewall opening when fertilizer after, the fertilizer of preliminary coating just enters second coating tower from first coating tower, the liquid injection valve of opening this coating tower continues spraying, after for some time, coated fertilizer can enter the 3rd coating tower through second coating tower side wall opening, and the rest may be inferred, draws off until the discharge port of coated fertilizer from last coating tower;
C, the coated fertilizer packing warehouse-in that will draw off from discharge port are finished the coating process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101394344A CN101357862A (en) | 2008-09-10 | 2008-09-10 | Fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101394344A CN101357862A (en) | 2008-09-10 | 2008-09-10 | Fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer |
Publications (1)
| Publication Number | Publication Date |
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| CN101357862A true CN101357862A (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101394344A Pending CN101357862A (en) | 2008-09-10 | 2008-09-10 | Fluidized-bed for continuously producing membrane wrapping control-releasing fertilizer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093133A (en) * | 2010-12-17 | 2011-06-15 | 滨州市鑫龙油田化工有限公司 | Preparation method of coated controlled-release fertilizer and coating equipment thereof |
| CN102491796A (en) * | 2011-11-25 | 2012-06-13 | 天津九策东方高科技有限公司 | Continuous production device for composite trace element plant nutrient solution |
| CN104163716A (en) * | 2014-08-07 | 2014-11-26 | 安徽省荆涂机电工程有限公司 | Fluidized bed for fertilizer coating |
| 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 |
| CN107473836A (en) * | 2017-09-11 | 2017-12-15 | 天津蔚蓝天成环保科技有限公司 | A kind of fertilizer production device |
| CN109534914A (en) * | 2019-01-16 | 2019-03-29 | 北京市农林科学院 | Coating equipment in sugar production line and its dedicated coating tower |
| CN114963739A (en) * | 2022-05-23 | 2022-08-30 | 哈尔滨理工大学 | Pulsating airflow is spouted air current spouted bed drying device in coordination |
-
2008
- 2008-09-10 CN CNA2008101394344A patent/CN101357862A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093133A (en) * | 2010-12-17 | 2011-06-15 | 滨州市鑫龙油田化工有限公司 | Preparation method of coated controlled-release fertilizer and coating equipment thereof |
| CN102093133B (en) * | 2010-12-17 | 2013-04-03 | 滨州市鑫龙油田化工有限公司 | Preparation method of coated controlled-release fertilizer and coating equipment thereof |
| CN102491796A (en) * | 2011-11-25 | 2012-06-13 | 天津九策东方高科技有限公司 | Continuous production device for composite trace element plant nutrient solution |
| CN104163716A (en) * | 2014-08-07 | 2014-11-26 | 安徽省荆涂机电工程有限公司 | Fluidized bed for fertilizer coating |
| 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 |
| CN107473836A (en) * | 2017-09-11 | 2017-12-15 | 天津蔚蓝天成环保科技有限公司 | A kind of fertilizer production device |
| CN109534914A (en) * | 2019-01-16 | 2019-03-29 | 北京市农林科学院 | Coating equipment in sugar production line and its dedicated coating tower |
| CN109534914B (en) * | 2019-01-16 | 2023-09-15 | 北京市农林科学院 | Coating equipment and special coating tower thereof |
| CN114963739A (en) * | 2022-05-23 | 2022-08-30 | 哈尔滨理工大学 | Pulsating airflow is spouted air current spouted bed drying device in coordination |
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Open date: 20090204 |