CN101947514A - Coarse fraction powder concentrator - Google Patents
Coarse fraction powder concentrator Download PDFInfo
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- CN101947514A CN101947514A CN 201010514612 CN201010514612A CN101947514A CN 101947514 A CN101947514 A CN 101947514A CN 201010514612 CN201010514612 CN 201010514612 CN 201010514612 A CN201010514612 A CN 201010514612A CN 101947514 A CN101947514 A CN 101947514A
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- inner housing
- shell body
- coarse fraction
- bearing block
- powder concentrator
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Abstract
The invention relates to a coarse fraction powder concentrator which comprises an engine base, a bearing block, a transmission wheel, a hollow spindle, a spreading disk, a large fan blade, an inner shell and an outer shell, wherein the bearing block is arranged on an engine cover; the hollow spindle is arranged on the bearing block through a bearing, and a material inlet is arranged above the hollow spindle; the transmission wheel, the spreading disk and the large fan blade are assembled on the hollow spindle to form a rotor component capable of rotating; the outer shell consists of an upper outer shell and a lower outer shell; the engine base is arranged outside the outer shell; the lower part of the lower outer shell is provided with a fine powder outlet; the inner shell is arranged in an inner cavity formed by the outer shell and consists of an upper inner shell and a lower inner shell; the lower part of the lower inner shell is provided with a coarse powder outlet; and air return blades are arranged between the upper inner shell and the lower inner shell. The invention has the advantages of simple structure, high efficiency, large treatment capacity, long service life and no need of an external fan.
Description
Technical field
The present invention relates to a kind of granular material dry separation device, especially relate to a kind of coarse fraction granular material dry separation device that is applied to industries such as nonmetallic ore, new material.
Background technology
Dry method powder concentrator commonly used mainly contains centrifugal, cyclone type, rotator type etc. in the industry, its common feature is to utilize wind-force that material is blown from bottom to top, when material is blown to classification rotor that plays the fence effect or little fan blade, thicker material makes downward power fall into the meal district greater than the strength that makes progress owing to effects such as being subjected to gravity, centrifugal force, and fine powder then continues upwards to enter the fine powder district.These powder concentrators must have bigger classification height could carry out separation thick, fine powder owing to regulate the finished product powder fineness by the rotating speed that changes little fan blade quantity and classifying turbine.
In theory, general powder concentrator overcome by wind-force sort after gravity promotes material, classification, owing to the wind area of material is directly proportional with the quadratic power of particle diameter, weight is directly proportional with the cube of material particular diameter, so large granular materials and heavy material, be difficult for being raised and sort, classification.If the feed separation particle diameter is big, because increasing along with particle diameter, the increase of gravity is much larger than the increase of wind-force, air-flow upwards will promote thick material than classification rotor or the little fan blade of big height to grading and be difficult to realize, so these common powder concentrators only are suitable for carrying out the classification of thin (as-80 orders, promptly particle diameter is less than 0.175mm) material.
CN100522393C discloses a kind of " coarse particle separator ", can realize that coarse granule selects the purpose of powder, but owing to must material be promoted the peripheral hardware blower fan, makes hierarchy system become comparatively complicated.
Summary of the invention
The object of the present invention is to provide a kind of efficient height, disposal ability is strong, and long service life is without the powder concentrator that is suitable for coarse fraction material or big proportion stock grading of peripheral hardware blower fan.
The objective of the invention is to be achieved through the following technical solutions: it is vertical structure, comprises support, bearing block, drive, hollow main shaft, spreading disk, big blade, inner housing, shell body, and described bearing block is installed on the cover; Described hollow main shaft is installed on the bearing block by bearing, and charging aperture is located at the top of hollow main shaft; Described drive, spreading disk, big blade are assemblied on the hollow main shaft, constitute rotary rotor part; Described shell body is made up of last shell body, lower casing body two parts, and support is located at the shell body outside, is used for the installation of machine, and lower casing body bottom is provided with the fine powder outlet; The inner chamber that described inner housing places shell body to constitute, inner housing is made up of last inner housing, following inner housing two parts, and following inner housing bottom is provided with the meal outlet, is provided with the return air blade between last inner housing, the following inner housing.
Last inner housing top is provided with the annular collet of the level that is connected with it, is used to prevent that powder and air-flow from passing through from the composition surface.
During work, rotor part rotates by its drive and drive unit connection, the wind (air-flow) that the big blade rotation produces by the passage between last inner housing and the last shell body from top to bottom, enter the inside of inner housing again by the return air blade, flow from bottom to top, form circle stream, material enters the back from charging aperture and drops on the spreading disk by hollow main shaft, spread to the spreading disk top by spreading disk, center cavity graded region in the machine that the inside of last inner housing and top constitute, thick material is dominated owing to gravity accounts for, outside the meal outlet discharge machine of following inner housing bottom, fine powder is then driven by air-flow and rises, enter in the fine powder district that constitutes by cavity between inner housing and the shell body by inner housing top,, discharge from the fine powder outlet of lower casing body bottom at last because whirlwind tube effect falls along last shell body inwall.Sorting grade can be by quantity, size, shape, the installation site of adjusting big blade, the structure of spreading disk, size, and rotor speed, or set up the through type annular and select powder blade or screen cloth etc. to adjust.
Compare with existing dry method powder concentrator, the present invention has saved the classification rotor or the little fan blade of rotation, has reduced the distance of material from graded region, makes the material of larger particles can be promoted to graded region, thereby reaches the purpose than coarse grain footpath stock grading.Compare with centrifugal classifier, structure is simpler, and material is more evenly distributed from central feeding, and efficient is higher.
Should be noted that the present invention is not suitable for the classification of fine grain (as cut diameter less than 0.1mm) material, reason is that powder-separating space is less, selects the powder segmentation precision lower to fine fraction, and the classification of fine grain material is fit to the dry method powder concentrator that adopts background technology to describe.
When adopting technical solution of the present invention to carry out coarse grain footpath stock grading, if the size distribution of fine powder is strict, can select powder blade or screen cloth to the through type annular is set between upper-cover at the opening part above the inner housing, thereby prevent to enter the fine powder district than coarse grain footpath material.
For improving classification efficiency, also can on the conical surface of following inner housing, screen cloth be set.
The present invention is simple in structure, the efficient height, and disposal ability is strong, and long service life need not the peripheral hardware blower fan.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of the embodiment of the invention 3.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Embodiment 1
With reference to Fig. 1, present embodiment comprises support 803, bearing block 2, drive 1, hollow main shaft 3, spreading disk 5, big blade 6, inner housing, shell body, and described bearing block 2 is installed on the cover 9; Described hollow main shaft 3 is installed on the bearing block 2 by bearing, and charging aperture is located at the top of hollow main shaft; Described drive 1, spreading disk 5, big blade 6 are assemblied on the hollow main shaft 3, constitute rotary rotor part; Described shell body is made up of last shell body 801, lower casing body 802 2 parts, and support 803 is located at the shell body outside, is used for the installation of machine, and lower casing body 802 bottoms are provided with fine powder outlet 804; The inner chamber that described inner housing places shell body to constitute, inner housing is made up of last inner housing 701, following inner housing 702 2 parts, and following inner housing 702 bottoms are provided with meal outlet 704, are provided with return air blade 703 between last inner housing 701, the following inner housing 702; Last inner housing 701 tops are provided with the annular collet 705 of the level that is connected with it.
During work, drive 1 is linked to each other with external drive unit (not shown), drive 1 drives the rotor part rotation, the wind (air-flow) that big blade 6 rotations produce by the passage between last inner housing 701 and the last shell body 801 from top to bottom, enter the inside of inner housing again by return air blade 703, flow from bottom to top, form circle stream (shown in arrow A among the figure); Material B to be fractionated is entered the back from charging aperture 4 to be dropped on the spreading disk 5 by hollow main shaft 3, spread to spreading disk 5 tops by spreading disk 5, center cavity graded region in the machine that the inside of last inner housing 701 and top constitute, thick material is dominated owing to gravity accounts for, export outside the 704 discharge machines from the meal of following inner housing 702 bottoms, fine powder is then driven by air-flow and rises, enter in the fine powder district that constitutes by cavity between inner housing and the shell body by inner housing top, because whirlwind tube effect falls along the shell body inwall, discharge from the fine powder outlet 804 of lower casing body 802 bottoms at last.Sorting grade can be by quantity, size, shape, the installation site of adjusting big blade, the structure of spreading disk, size, and rotor speed etc. are adjusted.
With reference to Fig. 2, present embodiment is compared with embodiment 1, and difference only is to select powder blade 10 at the opening part above the last inner housing 701 to having set up the through type annular between the cover 9.All the other are with embodiment 1.The thin material that only meets granularity requirements could select powder blade 10 by described through type annular, enters the fine powder district, has realized classification for the second time, thereby helps realizing the strictness control to the fine powder particle diameter.Simple in structure, classification efficiency is high.
With reference to Fig. 3, present embodiment is compared with embodiment 1, and difference only is setting up screen cloth 11 between the cover 9 above the last inner housing 701.All the other are with embodiment 1.Have only powder material just can enter the fine powder district, realized classification for the second time, thereby help realizing strictness control the fine powder particle diameter by screen cloth 11 sieve apertures.
Described screen cloth 11 and common sieve screening material have 2 different: the one, the material that enters this screen cloth is by air current classifying, screen cloth only need intercept on a small quantity and enter the fine powder district than coarse fraction, needn't resemble common sieve and need handle all materials; The 2nd, the material that enters this screen cloth is to be suspended in the gas, and screening efficiency is high and be difficult for the obstruction sieve aperture, does not resemble common sieve by gravitational field screening material.Utilize existing gas on the structure, powder passage to realize second level classification, structure is simpler, and classification efficiency is higher.
Claims (5)
1. a coarse fraction powder concentrator comprises support, bearing block, drive, hollow main shaft, spreading disk, big blade, inner housing, shell body, it is characterized in that, described bearing block is installed on the cover; Described hollow main shaft is installed on the bearing block by bearing, and charging aperture is located at the top of hollow main shaft; Described drive, spreading disk, big blade are assemblied on the hollow main shaft, constitute rotary rotor part; Described shell body is made up of last shell body, lower casing body two parts, and support is located at the shell body outside, and lower casing body bottom is provided with the fine powder outlet; The inner chamber that described inner housing places shell body to constitute, inner housing is made up of last inner housing, following inner housing two parts, and following inner housing bottom is provided with the meal outlet, is provided with the return air blade between last inner housing, the following inner housing.
2. coarse fraction powder concentrator according to claim 1 is characterized in that, last inner housing top is provided with the annular collet of the level that is connected with it.
3. coarse fraction powder concentrator according to claim 1 and 2 is characterized in that, the opening part of inner housing top selects the powder blade to the through type annular is set between upper-cover.
4. coarse fraction powder concentrator according to claim 1 and 2 is characterized in that, the opening part of inner housing top is provided with screen cloth between upper-cover.
5. coarse fraction powder concentrator according to claim 1 and 2 is characterized in that, on the conical surface of following inner housing screen cloth is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010514612A CN101947514B (en) | 2010-10-21 | 2010-10-21 | Coarse fraction powder concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010514612A CN101947514B (en) | 2010-10-21 | 2010-10-21 | Coarse fraction powder concentrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101947514A true CN101947514A (en) | 2011-01-19 |
| CN101947514B CN101947514B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010514612A Expired - Fee Related CN101947514B (en) | 2010-10-21 | 2010-10-21 | Coarse fraction powder concentrator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671859A (en) * | 2011-03-07 | 2012-09-19 | 中国科学院过程工程研究所 | Fluidized sorting device for tiny solid particles and method thereof |
| CN103964513A (en) * | 2014-05-05 | 2014-08-06 | 南通宝聚颜料有限公司 | Continuous ferrous sulfate free acid separation device |
| CN108273740A (en) * | 2018-03-30 | 2018-07-13 | 上海益非亚粉体技术设备有限公司 | A kind of ultra-large type grader |
| CN109201302A (en) * | 2017-07-05 | 2019-01-15 | 曾鲁庆 | A kind of hollow main shaft device for powder concentrator |
| CN111974678A (en) * | 2020-09-11 | 2020-11-24 | 连云港秉文科技有限公司 | Novel vortex air classifier for silicon carbide micro powder |
Citations (6)
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| US5366095A (en) * | 1993-11-15 | 1994-11-22 | Christopher Martin | Air classification system |
| CN2183829Y (en) * | 1993-11-27 | 1994-11-30 | 国家建材局合肥水泥研究设计院 | Material grading apparatus |
| CN2210722Y (en) * | 1994-04-05 | 1995-10-25 | 南京化工学院 | High-efficiency centrifugal powder-sieving machine |
| JP2002119920A (en) * | 2000-10-13 | 2002-04-23 | Kawasaki Heavy Ind Ltd | Air flow type classifier |
| CN2822803Y (en) * | 2005-09-19 | 2006-10-04 | 夏纪勇 | Powder selecting machine for coarse grain |
| CN1935395A (en) * | 2005-09-19 | 2007-03-28 | 夏纪勇 | Coarse particle separator |
-
2010
- 2010-10-21 CN CN201010514612A patent/CN101947514B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5366095A (en) * | 1993-11-15 | 1994-11-22 | Christopher Martin | Air classification system |
| CN2183829Y (en) * | 1993-11-27 | 1994-11-30 | 国家建材局合肥水泥研究设计院 | Material grading apparatus |
| CN2210722Y (en) * | 1994-04-05 | 1995-10-25 | 南京化工学院 | High-efficiency centrifugal powder-sieving machine |
| JP2002119920A (en) * | 2000-10-13 | 2002-04-23 | Kawasaki Heavy Ind Ltd | Air flow type classifier |
| CN2822803Y (en) * | 2005-09-19 | 2006-10-04 | 夏纪勇 | Powder selecting machine for coarse grain |
| CN1935395A (en) * | 2005-09-19 | 2007-03-28 | 夏纪勇 | Coarse particle separator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671859A (en) * | 2011-03-07 | 2012-09-19 | 中国科学院过程工程研究所 | Fluidized sorting device for tiny solid particles and method thereof |
| CN102671859B (en) * | 2011-03-07 | 2014-04-30 | 中国科学院过程工程研究所 | Fluidized sorting device for tiny solid particles and method thereof |
| CN103964513A (en) * | 2014-05-05 | 2014-08-06 | 南通宝聚颜料有限公司 | Continuous ferrous sulfate free acid separation device |
| CN103964513B (en) * | 2014-05-05 | 2015-07-08 | 南通宝聚颜料有限公司 | Continuous ferrous sulfate free acid separation device |
| CN109201302A (en) * | 2017-07-05 | 2019-01-15 | 曾鲁庆 | A kind of hollow main shaft device for powder concentrator |
| CN108273740A (en) * | 2018-03-30 | 2018-07-13 | 上海益非亚粉体技术设备有限公司 | A kind of ultra-large type grader |
| CN111974678A (en) * | 2020-09-11 | 2020-11-24 | 连云港秉文科技有限公司 | Novel vortex air classifier for silicon carbide micro powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101947514B (en) | 2012-10-03 |
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Owner name: CHANGSHA UNIVERSITY Free format text: FORMER OWNER: CHEN LEI Effective date: 20121228 |
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Free format text: CORRECT: ADDRESS; FROM: 410003 CHANGSHA, HUNAN PROVINCE TO: 410022 CHANGSHA, HUNAN PROVINCE |
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Effective date of registration: 20121228 Address after: 410022 Department of mechanical and electrical engineering, Changsha University, Hunan, Changsha Patentee after: Changsha University Address before: 410003 Department of mechanical and electrical engineering, Changsha University, Hunan, Changsha Patentee before: Chen Lei |
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Granted publication date: 20121003 Termination date: 20171021 |
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| CF01 | Termination of patent right due to non-payment of annual fee |