CN203728738U - Rotary drum pelletizer - Google Patents
Rotary drum pelletizer Download PDFInfo
- Publication number
- CN203728738U CN203728738U CN201420128139.XU CN201420128139U CN203728738U CN 203728738 U CN203728738 U CN 203728738U CN 201420128139 U CN201420128139 U CN 201420128139U CN 203728738 U CN203728738 U CN 203728738U
- Authority
- CN
- China
- Prior art keywords
- revolving drum
- drum granulator
- distribution plate
- rotary drum
- air distribution
- 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 - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 33
- 238000009826 distribution Methods 0.000 claims description 30
- 239000011148 porous material Substances 0.000 claims description 19
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 description 9
- 239000003337 fertilizer Substances 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 5
- 150000002828 nitro derivatives Chemical class 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229940095686 granule product Drugs 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The utility model provides a rotary drum pelletizer which comprises a rotary drum with a feed box and a discharge box, a lifting shoveling plate is arranged on the inner wall of the rotary drum, a cooling bed is fixedly arranged in the axial direction of the rotary drum in the rotary drum, the cooling bed comprises an air distributor arranged aslant, an air tube and a row of atomizingnozzles used for coating and pelleting are arranged at the lower part of the air distributor, the rotary drum is further internally provided with an internal returning charge helix and a classifying cone, and small particles screened by the classifying cone are conveyed through the integral returning charging helix to a feed end and are pelleted again. Compared with the prior art, the rotary drum pelletizer has the advantages of small occupied area, low investment, low operation cost, high product quality and the like, and has an excellent economic value.
Description
Technical field
The production unit technical field of the utility model fertiliser granulates product, relates in particular to a kind of revolving drum granulator.
Background technology
In fertiliser granulates production technical field, especially, in the production of nitro-compound fertilizer, ammonium nitrate granule, granulating equipment mainly contains two kinds at present; one is high tower; the pulp density using is 99%, and another kind is the revolving drum granulator of spray granulating, and the slurry concentration of use is 75～90%.The advantage of high tower prilling is that the visual appearance of particulate product is better, uniform particles, shortcoming be invest larger; Whitewashing revolving drum granulator exist problem mainly:
(1) the particulate product hardness of producing is low;
(2) water content is large, and the water content of tablets press outlet particle is also large, needs huge dry and cooling apparatus, and investment is large, and floor space is large, and energy consumption is high;
(3) granulating efficiency is lower.
Therefore, design novel revolving drum granulator just very valuable.
Utility model content
Problem to be solved in the utility model is the deficiency for above-mentioned existence, and a kind of revolving drum granulator is provided, for but be not limited to the agglomeration technique field of nitro-compound fertilizer, ammonium nitrate granule.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of revolving drum granulator, comprises the rotating cylinder with material feeding box and feed box, is provided with elevate a turnable ladder flight on the inwall of described rotating cylinder; Rotating cylinder inside, one cooling bed to being installed with along rotating drum shaft, the described cooling bed air distribution plate being obliquely installed that comprises, the bottom of described air distribution plate is provided with an airduct and the row atomizing nozzle for coating granulation.
Preferably, the angle of described air distribution plate and horizontal plane is 18 °, and on air distribution plate, evenly has pore.
Preferred, described pore is circle pore, and its aperture is 2mm, and pore spacing is 9mm.
Preferably, the described cooling bed material curtain regulating fender that also comprises, it is arranged on the lower end of air distribution plate vergence direction.
Preferably, described airduct is near evenly having pore on the arc of air distribution plate one end.
Preferably, revolving drum granulator feed box one end is provided with a classfied cone for screening materials carrying granular size.
Preferably, the inside of described rotating cylinder is also provided with internal return spiral, and described internal return spiral is the box structure of volution, and its box house is for the passback of small particles material.
With preferred, the number of described internal return spiral is 2, the two cross-distribution.
Advantage and the positively effect that the utlity model has are: compared with prior art, the utlity model has floor space little, and less investment, working cost is low, and high quality has good economic worth.
Brief description of the drawings
Fig. 1 is the one-piece construction schematic diagram of revolving drum granulator.
Fig. 2 is the A-A sectional view of rotating cylinder.
Fig. 3 is rotating cylinder internal structure schematic diagram.
Fig. 4 is cooling bed structural representation.
In figure: 1-liquid liquor inlet; 2-air intlet; 3-particle outside returns entrance; 4-material feeding box; 5-rotating cylinder; 6-feed box; 7-air intlet; Carrier roller mechanism before 8-; 9-driving mechanism; Carrier roller mechanism after 10-; The outlet of 11-granule materials; 12-airduct; 13-atomizing nozzle; 14-material curtain regulating fender; 15-air distribution plate; 16-elevate a turnable ladder flight; 17-internal return spiral; 18-elevate a turnable ladder flight; 19-internal return spiral; 20-classfied cone; Pore on 21-air distribution plate; Pore on 22-airduct.
Embodiment
In order better to understand the utility model, below in conjunction with specific embodiments and the drawings, the utility model is conducted further description.
The utility model relates to a kind of revolving drum granulator, relates in particular to the revolving drum granulator of a kind of nitro-compound fertilizer, ammonium nitrate granule product, and this tablets press is used for the granulation of nitro-compound fertilizer, ammonium nitrate granule product, but is not limited to this product.
Please refer to Fig. 1, this revolving drum granulator comprises liquid liquor inlet 1, particle outside returns import 3, and material feeding box 4, rotating cylinder 5, feed box 6, granule materials exports 11, and is positioned at the front carrier roller mechanism 8 of rotating cylinder 5 bottoms, the driving mechanism 9 of rear carrier roller mechanism 10 and rotating cylinder.
Continue with reference to figure 2 and Fig. 4, on the inwall of rotating cylinder, be provided with elevate a turnable ladder flight 16; In rotating cylinder inside, one cooling bed to being installed with along rotating drum shaft, the length of cooling bed length and rotating cylinder 5 is suitable, and in revolving drum granulator working process, rotating cylinder 5 rotates, and does not cooling bedly rotate.The described cooling bed air distribution plate being obliquely installed 15 that comprises, the bottom of described air distribution plate 15 is provided with an airduct 12 and an atomizing nozzle 13 of arranging for coating granulation, and the quantity of atomizing nozzle 13 is installed according to production-scale difference.
One preferred embodiment in, described air distribution plate 15 is 18 ° with the angle of horizontal plane, and on air distribution plate 15, evenly has pore 21.Described pore 21 is circle pore, and its aperture is 2mm, and pore spacing is 9mm.
Described airduct 12 is near also evenly having pore 22 on the arc of air distribution plate 15 one end.
Revolving drum granulator along drum shaft to two ends be respectively arranged with air intlet 2 and air intlet 7; freezing air enters airduct 12 from these two air intlets; spray airduct 12 by the pore 22 on airduct 12, then see through the pore 21 on air distribution plate 15, carry out cooling to the material on air distribution plate 15.
One preferred embodiment in, the described cooling bed material curtain regulating fender 14 that also comprises, it is arranged on the lower end of air distribution plate 15 vergence directions.After material is taken up by elevate a turnable ladder flight 16, fall on cooling bed air distribution plate 15, material naturally stays and forms material curtain from air distribution plate 15, and material curtain regulating fender 14 can make material accumulate certain height, and it is fallen with certain radian.
In another preferred embodiment, revolving drum granulator feed box one end is provided with a classfied cone 20 for screening materials carrying granular size, please refer to Fig. 3, and classfied cone 20 is pyramidal structure; The inside of described rotating cylinder 5 is also provided with internal return spiral 17, and described internal return spiral 17 is the box structure of volution, and its box house is for the passback of small particles material, and its entrance is positioned at fine particle district.Material particles carries out the screening of granular size through classfied cone 20, and macrobead meets product requirement, directly enters feed box 6 and discharges tablets press; Small-particle does not meet product requirement, still stays in rotating cylinder 5, is delivered to material feeding box 4 through internal return spiral 17, continues to participate in granulation.
As preferred technical scheme, the number of described internal return spiral 17 is 2, the two cross-distribution.Can be according to the different conditions of production, select suitable returning charge ratio, in the time of the more internal return of needs, two internal return spirals 17 are worked simultaneously; In the time of the less internal return of needs, can stop up the entrance of an internal return spiral 17, so, allow 17 work of an internal return spiral.
Mode of operation of the present utility model is: external small-particle returning charge enters in rotating cylinder 5 from particle outside returns entrance 3, when rotating cylinder 5 rotates, elevate a turnable ladder flight 16 is made a copy for granule materials to cooling bed air distribution plate 15, freezing air by airduct 12 carries out cooling to granule materials, cooled granule materials naturally stays and forms material curtain from air distribution plate 15, simultaneously, liquid slip enters from liquid liquor inlet 1, after atomizing nozzle 13 atomizations, be sprayed onto on material curtain, coating granulation, wherein, the distance of atomizing nozzle 13 distance material curtains is 220mm.
Small particles material moves to feed box 6 one end from material feeding box 4 one end gradually in rotating cylinder 5, is constantly transported on air distribution plate 15 by elevate a turnable ladder flight 16, repeats above-mentioned granulation process, and grain diameter increases gradually.In the time that particle arrives discharge end, larger particles is crossed classfied cone 20 and is gone out tablets press, because the throughput direction of internal return is contrary with the flow direction of principal goods material, is therefore transported to feed end compared with small-particle through internal return spiral 17, continues to participate in granulation.The existence of internal return, reduces the mass flow of outside returns, invests favourable to reduction energy consumption, minimizing peripheral equipment.
The utility model can be for the preparation of separate unit yearly capacity 10～150,000 ton nitro-compound fertilizer, ammonium nitrate granule product.
Above embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variation and improvement etc. of doing according to the utility model scope, within all should still belonging to this patent covering scope.
Claims (8)
1. a revolving drum granulator; comprise the rotating cylinder with material feeding box and feed box; on the inwall of described rotating cylinder, be provided with elevate a turnable ladder flight; it is characterized in that: rotating cylinder inside; cooling bed to being installed with one along rotating drum shaft; the described cooling bed air distribution plate being obliquely installed that comprises, the bottom of described air distribution plate is provided with an airduct and an atomizing nozzle of arranging for coating granulation.
2. revolving drum granulator according to claim 1, is characterized in that: the angle of described air distribution plate and horizontal plane is 18 °, and on air distribution plate, evenly has pore.
3. revolving drum granulator according to claim 2, is characterized in that: described pore is circle pore, and its aperture is 2mm, and pore spacing is 9mm.
4. revolving drum granulator according to claim 1, is characterized in that: the described cooling bed material curtain regulating fender that also comprises, it is arranged on the lower end of air distribution plate vergence direction.
5. revolving drum granulator according to claim 1, is characterized in that: described airduct is near evenly having pore on the arc of air distribution plate one end.
6. according to the arbitrary described revolving drum granulator of claim 1-5, it is characterized in that: revolving drum granulator feed box one end is provided with a classfied cone for screening materials carrying granular size.
7. revolving drum granulator according to claim 6, is characterized in that: the inside of described rotating cylinder is also provided with internal return spiral, and described internal return spiral is the box structure of volution, and its box house is for the passback of small particles material.
8. revolving drum granulator according to claim 7, is characterized in that: the number of described internal return spiral is 2, the two cross-distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128139.XU CN203728738U (en) | 2014-03-20 | 2014-03-20 | Rotary drum pelletizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128139.XU CN203728738U (en) | 2014-03-20 | 2014-03-20 | Rotary drum pelletizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203728738U true CN203728738U (en) | 2014-07-23 |
Family
ID=51198824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420128139.XU Expired - Lifetime CN203728738U (en) | 2014-03-20 | 2014-03-20 | Rotary drum pelletizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203728738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2624693C1 (en) * | 2016-06-17 | 2017-07-05 | Открытое Акционерное Общество "Научно-Исследовательский И Проектный Институт Карбамида И Продуктов Органического Синтеза" (Оао Ниик) | Drum granulator |
| CN107381599A (en) * | 2017-09-08 | 2017-11-24 | 天津华景化工新技术开发有限公司 | A kind of bulky grain ammonium nitrate products and preparation method thereof |
-
2014
- 2014-03-20 CN CN201420128139.XU patent/CN203728738U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2624693C1 (en) * | 2016-06-17 | 2017-07-05 | Открытое Акционерное Общество "Научно-Исследовательский И Проектный Институт Карбамида И Продуктов Органического Синтеза" (Оао Ниик) | Drum granulator |
| CN107381599A (en) * | 2017-09-08 | 2017-11-24 | 天津华景化工新技术开发有限公司 | A kind of bulky grain ammonium nitrate products and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |