CN202543091U - Device for dust removal and recycling of urea particles - Google Patents
Device for dust removal and recycling of urea particles Download PDFInfo
- Publication number
- CN202543091U CN202543091U CN2012202066692U CN201220206669U CN202543091U CN 202543091 U CN202543091 U CN 202543091U CN 2012202066692 U CN2012202066692 U CN 2012202066692U CN 201220206669 U CN201220206669 U CN 201220206669U CN 202543091 U CN202543091 U CN 202543091U
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- urea
- fluidized
- bed
- dedusting
- recovery
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Abstract
The utility model provides a device for dust removal and recycling of urea particles. The device comprises fluidized beds, a dust recycling device and a draught fan and is characterized in that: two fluidized beds are arranged, the urea inlets of the two fluidized beds are respectively communicated with a charger through pipelines, and the urea outlets of the two fluidized beds are respectively communicated with a feeder through pipelines. The device provided by the utility model has the advantages that: a dust removal part is composed of the two fluidized beds, thus the dust removal efficiency is higher, and the dust removal process is more complete and thorough; the temperature of each urea particle can be reduced to 40-50 DEG C from 70-80 DEG C, the qualified rate of the particle size of urea is greater than or equal to 98%, and the urea is not agglomerated; the appearance and quality of the finished product of urea completely meet the national quality standards; and meanwhile, the dust is also recycled.
Description
Technical field
The utility model relates to a kind of device that is used for formed urea granules after the prilling tower granulation is carried out the dedusting recovery.
Background technology
Existing a kind of patent No. is 200920199857.5 and is called that the Chinese utility model patent of " a kind of flow of urea is eliminated the dirt device " discloses a kind of flow of urea and eliminated the dirt device; Include fluidized-bed, vibratory screening apparatus, gas blower and device for recovering powder; Said fluidized-bed is provided with the enterable import of urea and through the fluidized-bed inner chamber and the outlet of urea after the dedusting; It is characterized in that: the ingress at said gas blower is provided with air-cooler, and the pipeline between blower export and the fluidized-bed import is provided with airheater.This device is because of be provided with air-cooler and airheater simultaneously; So reduced the temperature of air preferably and improved the degree of unsaturation of air; Thereby avoided to a certain extent making the urea granules moisture absorption and mutual adhesion obstruction fluidized-bed behind the air admission fluidized-bed, yet, the complex structure of this device; Production cost is high; The more important thing is that this device is the homogeneity of fine assurance granularity when obviously reducing the urea granules temperature not, so the structure of this device needs also further to improve.
Summary of the invention
The utility model technical problem to be solved is that the dust that a kind of efficiency of dust collection height is provided to above-mentioned prior art present situation, can effectively reduces the urea granules temperature, also can will adheres on the urea granules is removed the device that urea is not lumpd and be used for the dedusting and the recovery of urea granules more uniformly.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the device that originally is used for the dedusting and the recovery of urea granules; Include fluidized-bed, device for recovering powder and air inducing equipment; The bottom of said fluidized-bed is equipped with the gas distribution grid of bringing the air port into; The bottom of said fluidized-bed is provided with the inlet pipe that is connected with said air inducing equipment; This inlet pipe is connected with the blast inlet of gas distribution grid, and the top of said fluidized-bed is provided with the air outlet that is connected with said device for recovering powder, and the fluidized-bed left side wall that is positioned at above the gas distribution grid is provided with the urea opening for feed; The fluidized-bed right side wall that is positioned at above the gas distribution grid is provided with the urea discharge port; It is characterized in that: said fluidized-bed is 2, and the urea opening for feed of said two fluidized-beds is connected with charging machine through pipeline respectively, and the urea discharge port of said two fluidized-beds is connected with feeder through pipeline respectively.
As improvement, the perforate mode of said blast inlet is that the pitch angle is 30 °～60 ° towards urea discharge port direction inclination perforate.
Improve, the pitch angle of said blast inlet is 45 ° again.
Improve, said urea opening for feed is positioned at the top of urea discharge port again.
Improve, said feeder is connected with vibratory screening apparatus again.
Improve, said device for recovering powder includes cyclonic separator again, and said cyclonic separator is connected through the air outlet of pipeline with the fluidized-bed top.
Improve, the top of said cyclonic separator is connected with blower fan through pipeline again.
Improve, the exhaust outlet of said blower fan is connected through the air intake vent of pipeline with the dust washing tower again.
Compared with prior art; The advantage of the utility model is: when urea granules seethes with excitement in fluidized-bed when flowing; Between the particle and the collision between particle and dust even dust and dust aggravation,, thereby under this kind situation, possibly take place to adhere to or collapse from phenomenon because the higher urea granules of temperature has certain viscosity; Thereby improved the homogeneity of granularity; Make granularity qualification rate >=98% of urea and do not lump, the outward appearance of finished urea and quality meet state quality standard fully, and dust has also obtained recycling simultaneously; Have again; The dedusting portion of this device is made up of two fluidized-beds, and urea granules gets into two fluidized-beds respectively from the back branch of prilling tower outflow two-way and carries out dedusting, and efficiency of dust collection is higher; Dust removal process more comprehensively thoroughly; Dust removing effects is better, and the urea purity of the purity of urea after than general dedusting is higher, and the temperature of urea granules can be reduced to 40～50 ℃ from 70～80 ℃; In addition, device for recovering powder includes cyclonic separator and dust washer, and this structure makes the defective dust urea that carries in the urea can thoroughly be separated with air, has avoided dust urea entrained air and is discharged into contaminate environment in the atmosphere.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the side projection figure of fluidized-bed among Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2; The dedusting that is used for urea granules of present embodiment and the device of recovery; Include fluidized-bed 1, cyclonic separator 3 and air inducing equipment, the bottom of fluidized-bed 1 is equipped with the gas distribution grid 6 of bringing the air port into, and the bottom of fluidized-bed 1 is provided with the inlet pipe 7 that is connected with air inducing equipment; This inlet pipe 7 is connected with the blast inlet of gas distribution grid 6; The top of fluidized-bed 1 is provided with the air outlet that is connected with cyclonic separator 3, and the top of cyclonic separator 3 is connected with blower fan 4 through pipeline, and the exhaust outlet of blower fan 4 is connected through the air intake vent of pipeline with dust washing tower 30.Fluidized-bed 1 left side wall that is positioned at above the gas distribution grid 6 is provided with urea opening for feed 9, and fluidized-bed 1 right side wall that is positioned at above the gas distribution grid 6 is provided with urea discharge port 10, and urea opening for feed 9 is positioned at the top of urea discharge port 10.Fluidized-bed 1 is 2, and the urea opening for feed 9 of these two fluidized-beds 1 is connected with charging machine 11 through pipeline respectively, and the urea discharge port 10 of these two fluidized-beds 1 is connected with feeder 12 through pipeline respectively, and feeder 12 is connected with vibratory screening apparatus 2 through pipeline again.Blast inlet is that the pitch angle is 45 ° towards the 10 direction inclination perforates of urea discharge port, and blast inlet is obliquely installed and can makes it both have ventilation function, has the function that urea granules is carried toward urea discharge port 10 directions again.
Principle of work: after urea comes out from prilling tower; Be delivered to respectively in two fluidized-beds 1 by 11 fens two-way of charging machine and carry out dedusting; Flow out to feeder 12 from the urea discharge port 10 of two fluidized-beds 1 respectively again after the boiling cooling; After in feeder 12, converging, be delivered in the vibratory screening apparatus 2 by feeder 12 and sieve, the specification product after the screening promptly carry out metering packing; Meanwhile, underproof dust urea entrained from the urea that prilling tower comes out is then taken out of by air from the air outlet at two fluidized-bed 1 tops, after converging, gets into cyclonic separator 3; After cyclonic separation, the urea powder is from the bottom output of cyclonic separator 3, and tail gas then flows out from cyclonic separator 3 tops; In blower fan 4 entering dust washing towers 30, carry out secondary washing; The urea powder is from the bottom output of dust washing tower 30, and tail gas is then emitted from the venting port of dust washing tower 30, certainly; If under normal design throughput, move, can directly get into vibratory screening apparatus 2 and sieve.
Claims (8)
1. device that is used for the dedusting and the recovery of urea granules; Include fluidized-bed (1), device for recovering powder and air inducing equipment; The bottom of said fluidized-bed (1) is equipped with the gas distribution grid (6) of bringing the air port into; The bottom of said fluidized-bed (1) is provided with the inlet pipe (7) that is connected with said air inducing equipment; This inlet pipe (7) is connected with the blast inlet of gas distribution grid (6), and the top of said fluidized-bed (1) is provided with the air outlet that is connected with said device for recovering powder, and fluidized-bed (1) left side wall that is positioned at gas distribution grid (6) top is provided with urea opening for feed (9); Fluidized-bed (1) right side wall that is positioned at gas distribution grid (6) top is provided with urea discharge port (10); It is characterized in that: said fluidized-bed (1) is 2, and the urea opening for feed (9) of said two fluidized-beds (1) is connected with charging machine (11) through pipeline respectively, and the urea discharge port (10) of said two fluidized-beds (1) is connected with feeder (12) through pipeline respectively.
2. the device that is used for the dedusting and the recovery of urea granules according to claim 1 is characterized in that: the perforate mode of said blast inlet is that the pitch angle is 30 °～60 ° towards urea discharge port (10) direction inclination perforate.
3. the device that is used for the dedusting and the recovery of urea granules according to claim 2 is characterized in that: the pitch angle of said blast inlet is 45 °.
4. according to each described device that is used for the dedusting and the recovery of urea granules in the claim 1 to 3, it is characterized in that: said urea opening for feed (9) is positioned at the top of urea discharge port (10).
5. the device that is used for the dedusting and the recovery of urea granules according to claim 1 is characterized in that: said feeder (12) is connected with vibratory screening apparatus (2).
6. according to each described device that is used for the dedusting and the recovery of urea granules in the claim 1 to 3; It is characterized in that: said device for recovering powder includes cyclonic separator (3), and said cyclonic separator (3) is connected through the air outlet of pipeline with fluidized-bed (1) top.
7. the device that is used for the dedusting and the recovery of urea granules according to claim 6 is characterized in that: the top of said cyclonic separator (3) is connected with blower fan (4) through pipeline.
8. the device that is used for the dedusting and the recovery of urea granules according to claim 7 is characterized in that: the exhaust outlet of said blower fan (4) is connected through the air intake vent of pipeline with dust washing tower (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202066692U CN202543091U (en) | 2012-04-25 | 2012-04-25 | Device for dust removal and recycling of urea particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202066692U CN202543091U (en) | 2012-04-25 | 2012-04-25 | Device for dust removal and recycling of urea particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202543091U true CN202543091U (en) | 2012-11-21 |
Family
ID=47163756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202066692U Expired - Fee Related CN202543091U (en) | 2012-04-25 | 2012-04-25 | Device for dust removal and recycling of urea particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202543091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408331A (en) * | 2013-07-08 | 2013-11-27 | 河南晋开化工投资控股集团有限责任公司 | Dust-free urea cooling method |
| CN108195139A (en) * | 2017-12-29 | 2018-06-22 | 寿县弘祥家纺有限公司 | A kind of natural feather fluidization drying device |
-
2012
- 2012-04-25 CN CN2012202066692U patent/CN202543091U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408331A (en) * | 2013-07-08 | 2013-11-27 | 河南晋开化工投资控股集团有限责任公司 | Dust-free urea cooling method |
| CN108195139A (en) * | 2017-12-29 | 2018-06-22 | 寿县弘祥家纺有限公司 | A kind of natural feather fluidization drying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO JINYUANDONG PETROCHEMICAL ENGINEERING TECHN Free format text: FORMER NAME: NINGBO YUANDONG INDUSTRY TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315040 Zhejiang Province, Ningbo City Jiangdong Road No. 435 Ningbo Hefeng creative square building 8 floor E Patentee after: Ningbo Jinyuandong Petrochemical Engineering Technology Co., Ltd. Address before: 315040 Zhejiang Province, Ningbo City Jiangdong Road No. 435 Ningbo Hefeng creative square building 8 floor E Patentee before: Ningbo Yuandong Industry Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315040, Zhejiang, Ningbo province Jiangdong North Road, No. 004, 435 (8-1) and creative Plaza creative court building 801 units Patentee after: Ningbo Zhongke Far East catalytic Engineering Technology Co Ltd Address before: 315040 Zhejiang Province, Ningbo City Jiangdong Road No. 435 Ningbo Hefeng creative square building 8 floor E Patentee before: Ningbo Jinyuandong Petrochemical Engineering Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20190425 |