CN2370006Y - Drum pelletizing device for urea - Google Patents
Drum pelletizing device for urea Download PDFInfo
- Publication number
- CN2370006Y CN2370006Y CN 98249040 CN98249040U CN2370006Y CN 2370006 Y CN2370006 Y CN 2370006Y CN 98249040 CN98249040 CN 98249040 CN 98249040 U CN98249040 U CN 98249040U CN 2370006 Y CN2370006 Y CN 2370006Y
- Authority
- CN
- China
- Prior art keywords
- rotary drum
- urea
- drum
- fluidized
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000004202 carbamide Substances 0.000 title claims abstract description 26
- 238000005453 pelletization Methods 0.000 title 1
- 238000005243 fluidization Methods 0.000 claims description 14
- 210000002700 urine Anatomy 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 5
- 230000010006 flight Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 18
- 235000013877 carbamide Nutrition 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000005469 granulation Methods 0.000 description 6
- 230000003179 granulation Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 5
- 239000008188 pellet Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to a rotary drum granulator for urea. The device of the design comprises a rotary drum barrel, one end of which is provided with a fluidized air inlet and a urea liquid inlet and the other end of which is provided with a return granule feed inlet. Both ends of the rotary drum barrel are provided with the fluidized air inlets. In the rotary drum barrel, a urea liquid inlet pipe is provided with a plurality of nozzles; a fluidized air inlet pipe is connected with a fluidized bed in which a plurality of baffle plates and a plurality of folding copy plates are arranged. The rotary drum granulator for urea designed by the utility model is scientific, reasonable and simple, is easy to implement. The utility model can produce large granule urea which is suitable for the need of the market, can lighten the load of a tower-type granulator, can improve and enhance conditions of the present tower-type granulator, and is the micro type of a large granulating fluidized bed.
Description
The utility model relates to a kind of prilling granulator, particularly a kind of urea drum granulating device.
The carbamide granulation mode of production commonly used and equipment have various ways.Agglomeration technique mainly is divided into two classes: tower sprinkling pelleting and mechanical pelleting; And mechanical pelleting can be divided into fluidized bed prilling and drum granulating.
Tower sprinkling pelleting is that urine forms drop by nozzle in the prilling tower top jet, finish crystallisation by cooling according to its free setting process, because this process time is short, the crystallization ecto-entad, therefore ubiquitous problem is: product particle intensity is low, particle diameter is less than normal, and is particularly more outstanding at high temperature, high humidity problem in season.Small-particle is bonded at can cause " burning seedling " phenomenon on the plant leaf.So demand is the production of granular urea (particle diameter is at 2-4mm) under the market mechanism.The fluidized bed prilling process be with urine by nozzles spray on urea crystal grain.Its principle is that accumulation mechanism is grown up particle, and granule strength is good, particle diameter is big; But operating process needs a large amount of fluidization airs, and the process energy consumption is big, and the dust washing system is big simultaneously.And the rotary drum pellet granulation to be the urea particulate with the urine be that tamanori rolls in rotary drum grows up, its operating features is that particle diameter is big, but because its drying process is that to form the back at particle inchoate, so granule strength is not high, and returning charge is than high.
The purpose of this utility model is to have overcome deficiencies such as the prior art granule strength is low, particle diameter is less than normal and a kind of drum granulating device is provided.
The urea drum granulating device of the utility model design comprises a rotary drum, described rotary drum is for tilting to place, be provided with fluidization air inlet mouth and urine fluid inlet at low end, and be provided with returning charge crystal grain opening for feed, and be equipped with the fluidization air air outlet at its two ends at the higher the other end; On the urine liquid-inlet pipe of rotary drum inside, be provided with a plurality of nozzles, on the fluidization air inlet pipe of rotary drum inside, be connected with one and be the fluidized-bed of prionodont on one side, fluidized-bed inside is provided with a plurality of dividing plates, also is provided with a plurality of folding shape flights on the inwall of rotary drum inside.
Wherein, the angle of inclination of described rotary drum is the 3-5 degree.
Described folding shape flight and rotary drum inwall are 90 degree.
The urea drum granulating device of the utility model design has adopted suspension-drum granulating technology, promptly in rotary drum pellet granulation process, quote the fluidized technology, on the suspended particle of liquid urine in atomizing nozzle is sprayed at rotary drum, powder is in rolling balling and suspension, cooling, carry out crystallization granulation in the dry alternation procedure, be dried simultaneously in the particle forming process, its technological core is to add small-sized fluidized bed in rotary drum, product pellet particle diameter big (can at 2-6mm), the intensity height, the process air consumption is lower than fluidized-bed, the dust washing system is dwindled, and whole process energy consumption descends; Bigger than rotary drum pellet granulation granule strength, the returning charge rate is low.
The urea drum granulating device of the utility model design is scientific and reasonable, simple, can produce the granular urea that is fit to the market requirement, alleviated the load of tower type prilling apparatus again, improving and strengthened current tower granulation situation, is large-scale granulating fluidized bed micro.
Further describe the utility model below in conjunction with drawings and Examples
The structural representation of the urea drum granulating device that accompanying drawing 1 designs for the utility model;
The rotary drum schematic cross-section of the urea drum granulating device that accompanying drawing 2 designs for the utility model.
Wherein, label 1 is a rotary drum, and 2 is the fluidization air air leaving cover, and 3 is the fluidization air air outlet, and 4 is the fluidization air inlet mouth, and 5 is the urine import, and 6 is flight, and 7 is atomizing nozzle, and 8 is fluidized-bed, and 9 is dividing plate, and 10 are the returning charge import.
Urea drum granulating device as shown in Figure 1, it comprises a rotary drum 1, described rotary drum is for tilting to place, be provided with fluidization air inlet mouth 4 and urine fluid inlet 5 at low end, and be provided with returning charge crystal grain opening for feed 10, and be equipped with fluidization air air outlet 3 at its two ends at the higher the other end; On the urine liquid-inlet pipe of rotary drum inside, be provided with a plurality of nozzles 7, on the fluidization air inlet pipe of rotary drum inside, be connected with one and be the fluidized-bed 8 of prionodont on one side, fluidized-bed inside is provided with a plurality of dividing plates 9, also is provided with a plurality of folding shape flights 6 on the inwall of rotary drum inside; Described folding shape flight and rotary drum inwall are 90 degree.
The inclination angle of described rotary drum 1 is 4 degree, when urea melt is atomized air through catheter 5 and by on the suspended particle of atomizing nozzle 7 sprayed coatings in rotary drum, the folding degree of these suspended particles in rotary drum is under the drive of folding shape flights 6 of 120 degree in the unrestrained fluidized-bed 8 that enters in the rotary drum, be fluidized air (60-70 ℃) fluidisation and be boiling state, this moment, crystallisation by cooling carried out simultaneously with evaporation, turn over afterwards and fall in the rotary drum, coated once more by urine, when in rotary drum, rolling, granule can be copied into fluidized-bed by flight once more, enters the cooling drying process; Like this, the rolling and the fluidized drying process of granule hocket, and the particle crystallisation by cooling is extremely outer from internal layer, thereby offers uniform particles structure closely; Afterwards, urea granules flows out the drum granulating device at the low end of rotary drum, enters vibratory screening apparatus by bucket elevator, and oarse-grained urea granules returns in the granulating rotating drum device through the returning charge mouth as returning charge together with the small particle urea particle after crushed and can be used as crystal grain.
Claims (3)
1, a kind of urea drum granulating device, it is characterized in that comprising a rotary drum, described rotary drum is provided with fluidization air inlet mouth and urine fluid inlet for tilting to place at low end, and be provided with returning charge crystal grain opening for feed, and be equipped with the fluidization air air outlet at its two ends at the higher the other end; On the urine liquid-inlet pipe of rotary drum inside, be provided with a plurality of nozzles, on the fluidization air inlet pipe of rotary drum inside, be connected with one and be the fluidized-bed of prionodont on one side, fluidized-bed inside is provided with a plurality of dividing plates, also is provided with a plurality of folding shape flights on the inwall of rotary drum inside.
2, urea drum granulating device as claimed in claim 1, the angle of inclination that it is characterized in that described rotary drum is the 3-5 degree.
3, urea drum granulating device as claimed in claim 1 is characterized in that described folding shape flight and rotary drum inwall are 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249040 CN2370006Y (en) | 1998-11-23 | 1998-11-23 | Drum pelletizing device for urea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98249040 CN2370006Y (en) | 1998-11-23 | 1998-11-23 | Drum pelletizing device for urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370006Y true CN2370006Y (en) | 2000-03-22 |
Family
ID=33993908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98249040 Expired - Fee Related CN2370006Y (en) | 1998-11-23 | 1998-11-23 | Drum pelletizing device for urea |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370006Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219356B (en) * | 2007-10-09 | 2010-05-19 | 褚开维 | S-type fluid bed |
| CN102503644A (en) * | 2011-11-03 | 2012-06-20 | 广西得盛生物科技有限公司 | High-nitrogen organic-inorganic compound fertilizer and steam-free compound fertilizer pelleting equipment |
| CN102519230A (en) * | 2011-12-16 | 2012-06-27 | 惠生工程（中国）有限公司 | Solid fuel drying equipment |
| CN109173926A (en) * | 2018-08-29 | 2019-01-11 | 上海化工研究院有限公司 | A kind of method of improved drum granulating production granular complex fertilizer |
| CN109405477A (en) * | 2017-08-16 | 2019-03-01 | 万华生态板业股份有限公司 | Drying device |
-
1998
- 1998-11-23 CN CN 98249040 patent/CN2370006Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219356B (en) * | 2007-10-09 | 2010-05-19 | 褚开维 | S-type fluid bed |
| CN102503644A (en) * | 2011-11-03 | 2012-06-20 | 广西得盛生物科技有限公司 | High-nitrogen organic-inorganic compound fertilizer and steam-free compound fertilizer pelleting equipment |
| CN102519230A (en) * | 2011-12-16 | 2012-06-27 | 惠生工程（中国）有限公司 | Solid fuel drying equipment |
| CN109405477A (en) * | 2017-08-16 | 2019-03-01 | 万华生态板业股份有限公司 | Drying device |
| CN109173926A (en) * | 2018-08-29 | 2019-01-11 | 上海化工研究院有限公司 | A kind of method of improved drum granulating production granular complex fertilizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHANXI FENGXI FERTILIZER Group Assignor: Beijing Dalike Technology Co.,Ltd. Contract fulfillment period: November 23, 2012, 10 years Contract record no.: 200210065 Denomination of utility model: A kind of urea drum granulation device Granted publication date: 20000322 License type: Common Record date: 20020710 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2012.11.23, 10 YEARS Name of requester: SHAN XI FENGXI FERTILIZER ( GROUP ) CO., LTD. LIN Effective date: 20020710 |
|
| C56 | Change in the name or address of the patentee |
Owner name: DALIKEKEJIYOUXIAN COMPANY, SUITE 410, KAIQI BUILDI Free format text: FORMER NAME OR ADDRESS: 100084 TSINGHUA TONG FANG BUILDING, BEIJING CITY B-302 |
|
| CP03 | Change of name, title or address |
Patentee address after: 100088 Beijing city Haidian District North Third Ring Road No. 31 building 410 room Cage Dalike Technology Co. Ltd. Patentee address before: 100084 Tongfang building, Tsinghua University, Beijing, B-302 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |