CN2385814Y - High-efficiency axial coarse powder separator - Google Patents
High-efficiency axial coarse powder separator Download PDFInfo
- Publication number
- CN2385814Y CN2385814Y CN 99229458 CN99229458U CN2385814Y CN 2385814 Y CN2385814 Y CN 2385814Y CN 99229458 CN99229458 CN 99229458 CN 99229458 U CN99229458 U CN 99229458U CN 2385814 Y CN2385814 Y CN 2385814Y
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- CN
- China
- Prior art keywords
- housing
- distribution plate
- guide vane
- center
- hypomere
- Prior art date
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- Expired - Fee Related
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- Combined Means For Separation Of Solids (AREA)
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a high-efficiency axial coarse powder separator which comprises a housing. The upper and a lower end faces of the housing are respectively provided with an outlet pipe and an inlet pipe; the outer side of the inlet pipe is sheathed with a power returning pipe; a conical cylindrical barrel and a flow guide blade group are arranged in the housing; an outer circle on the lower section of the conical cylindrical barrel, and the corresponding position of the housing are respectively provided with blind holes and through holes; regulating bolts on which regulating baffle plates are arranged are inserted in each pair of the blind holes and the through holes. Supporting strips are arranged for fixation between the flow guide blade group and the inner side wall of the housing, a staircase-shaped flow distribution plate is fixed in the center of the lower surface of the conical cylindrical barrel, and a fixing rod is fixedly connected between the flow distribution plate and the flow guide blade group. The utility model wit high separation efficiency can be used for the coal powder separation in power making systems of thermal power plants.
Description
The utility model relates to a kind of coal dust classifier.Specifically, be high-efficient axial mill separator in the pulverized coal preparation system of thermal power plant.
At present, axial mill separator in the pulverized coal preparation system of thermal power plant, its housing lumen centers one " circular cone-cylinder-circular cone " shape tube that suspends, after the wind powder air-flow of coal pulverizer outlet enters separator, this strand wind powder fails to be convened for lack of a quorum and rushes at the lower surface of " circular cone-cylinder-circular cone " shape tube with very high speed, make the coal dust particle in the wind powder stream produce bump and fall into powder retrieving pipe, thereby realize that thick (coal) powder in the wind powder stream separates.Use this separator, separate,, separator volume is diminished because bigger " circular cone-cylinder-circular cone " the shape tube that suspends in the middle of its housing inner chamber is not only wasted raw material though also can realize the meal in the wind powder stream; In addition, this separator has only one-level to separate.All these have all greatly limited separative efficiency, make separative efficiency reduce (being no more than 68%).
The purpose of this utility model is to provide a kind of high-efficient axial mill separator that can improve separative efficiency greatly.
For achieving the above object, the utility model adopts following technical solution:
High-efficient axial mill separator of the present utility model, comprise housing, housing is respectively cylindrical and conical for upper and lower section, its upper and lower end face center has outlet and inlet tube respectively, the inlet tube outside is with powder retrieving pipe, its design feature is that the lower lumen center of pars infrasegmentalis and its hypomere has awl cylindrical drum and guide vane group respectively on the housing, wherein: the hypomere excircle of awl cylindrical drum is to housing epimere corresponding position some blind holes and through hole being arranged respectively, be inserted with regulation cock in the every pair of corresponding blind hole and the through hole, be fixed with controllable register on the regulation cock; The blade outer end of guide vane group and an end of support bar fix, and the other end of support bar is fixed on the hypomere madial wall of housing; The lower surface center fixation of awl cylindrical drum has flow distribution plate, and this flow distribution plate diminishes gradually from top to bottom and be stepped, between itself and guide vane group fixed bar is arranged, and the two ends of fixed bar are separately fixed at manifold plate lower center and guide vane group switching centre.
Because high-efficient axial mill separator of the present utility model is changed traditional one-level and is separated into the secondary separation, soon built-in " circular cone-cylinder-circular cone " shape tube changes " circular cone-cylinder " shape tube into to be separated with guide vane group two-stage, raw material have not only been saved, also increased the separation volume, make its comprehensive separative efficiency improve greatly, as calculated, overall efficiency can be by original bringing up to about 90% less than 68%.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Accompanying drawing is a high-efficient axial mill separator structural representation of the present utility model
See accompanying drawing, high-efficient axial mill separator of the present utility model comprises housing (6), and housing (6) epimere is cylindrical, and its center, upper surface is welded with outlet (7), and this outlet communicates with its inner chamber.Housing (6) hypomere is conical, and its upper end welds together with the lower end of housing epimere, and its center, lower surface is welded with inlet tube (12), and this inlet tube communicates with its inner chamber.Housing (6) hypomere bottom lower surface also is welded with a powder retrieving pipe (2), and this powder retrieving pipe cover is welded in the outside of inlet tube (12), and the two leaves the gap, and its underpart one side leaves back powder outlet (1).Suspend in housing (6) epimere one the awl cylindrical drum (8), the upper and lower part of this awl cylindrical drum is respectively taper and cylindrical.The upper and lower intersegmental solder side of its lower surface and housing (6) is in the same plane, the columniform excircle in its underpart to and housing (6) epimere corresponding position be processed with some blind holes and through hole respectively, equal inserting one regulation cock (5) all is fixed with controllable register (9) on the one section regulation cock (5) between awl cylindrical drum (8) and housing (6) inwall in every corresponding a pair of blind hole and the through hole.
Housing (6) the hypomere intracavity bottom guide vane group (3) that suspended, this guide vane group is made of three blades, all weld mutually with an end of a support bar (11) outer end of every blade, and wherein, the other end of support bar (11) then is welded on the madial wall of housing (6) hypomere.
The lower surface of awl cylindrical drum (8) is fixed with flow distribution plate (10), and this flow distribution plate is that three layers of plectane constitute, and it from top to bottom diminishes gradually and forms stepped.Be provided with fixed bar (4) between flow distribution plate (10) and guide vane group (3), the two ends of this fixed bar are separately fixed at the center of flow distribution plate (10) lower surface center and guide vane group (3).
During work, the wind powder air-flow of being sent by coal pulverizer is after inlet tube (12) enters high-efficient axial mill separator of the present utility model, flow velocity with per second 15～18m rushes at guide vane group (3), makes coal dust particle in the wind powder air-flow produce bump, separate and fall into powder retrieving pipe (2).Simultaneously, air-flow through guide vane group (3) in the awl tube of housing (6) hypomere, rotatablely move along barrel produce centrifugation (one-level separation) after, make coal dust particle fall into powder retrieving pipe (2) again along barrel.Another part air-flow then converges with rotating flow outside guide vane group (3), and the air-flow rotation upwards takes place again behind the formed passage of controllable register (9) (40～50 ° of angles), and produces centrifugation (secondary separation).
Claims (1)
1, the high-efficient axial mill separator, comprise housing (6), on the housing (6), it is cylindrical and conical that hypomere is respectively, on it, the center, lower surface has outlet (7) and inlet tube (12) respectively, inlet tube (12) outside is with powder retrieving pipe (2), the lower lumen center that it is characterized in that the last pars infrasegmentalis of housing (6) and its hypomere has awl cylindrical drum (8) and guide vane group (3) respectively, wherein: the awl cylindrical drum (8) the hypomere excircle to and housing (6) epimere corresponding position some blind holes and through hole are arranged respectively, be inserted with regulation cock (5) in the every pair of corresponding blind hole and the through hole, be fixed with controllable register (9) on the regulation cock (5); One end of the blade outer end of guide vane group (3) and support bar (11) fixes, and the other end of support bar (11) is fixed on the hypomere madial wall of housing (6); The lower surface center fixation of awl cylindrical drum (8) has flow distribution plate (10), this flow distribution plate diminishes gradually from top to bottom and is stepped, between itself and guide vane group (3) fixed bar (4) is arranged, the two ends of fixed bar (4) are separately fixed at flow distribution plate (10) lower surface center and guide vane group (3) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229458 CN2385814Y (en) | 1999-09-20 | 1999-09-20 | High-efficiency axial coarse powder separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229458 CN2385814Y (en) | 1999-09-20 | 1999-09-20 | High-efficiency axial coarse powder separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2385814Y true CN2385814Y (en) | 2000-07-05 |
Family
ID=34018698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229458 Expired - Fee Related CN2385814Y (en) | 1999-09-20 | 1999-09-20 | High-efficiency axial coarse powder separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2385814Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791610A (en) * | 2010-04-14 | 2010-08-04 | 西安热工研究院有限公司 | Axial baffle and movable blade combined type rotating classifier |
| CN101797561A (en) * | 2010-03-04 | 2010-08-11 | 宁海鑫城汽车配件有限公司 | Separation device of plastic particles and dust by negative-pressure air power |
| CN102032585A (en) * | 2010-12-01 | 2011-04-27 | 云南电力技术有限责任公司 | Integrated pulverized coal separation and concentration device of pulverized-coal boiler |
| CN102192519A (en) * | 2010-03-01 | 2011-09-21 | 长沙理工大学 | Coal powder injection-type coarse pulverized coal separator |
| CN104984911A (en) * | 2015-07-28 | 2015-10-21 | 江苏羚羊水泥工程技术有限公司 | Rotor type powder concentrator |
| CN105195341A (en) * | 2015-06-09 | 2015-12-30 | 中国大唐集团科学技术研究院有限公司 | Double-in and double-out steel ball coal mill shaft diameter combined separator |
-
1999
- 1999-09-20 CN CN 99229458 patent/CN2385814Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192519A (en) * | 2010-03-01 | 2011-09-21 | 长沙理工大学 | Coal powder injection-type coarse pulverized coal separator |
| CN101797561A (en) * | 2010-03-04 | 2010-08-11 | 宁海鑫城汽车配件有限公司 | Separation device of plastic particles and dust by negative-pressure air power |
| CN101797561B (en) * | 2010-03-04 | 2012-10-17 | 宁海鑫城汽车配件有限公司 | Separation device of plastic particles and dust by negative-pressure air power |
| CN101791610A (en) * | 2010-04-14 | 2010-08-04 | 西安热工研究院有限公司 | Axial baffle and movable blade combined type rotating classifier |
| CN102032585A (en) * | 2010-12-01 | 2011-04-27 | 云南电力技术有限责任公司 | Integrated pulverized coal separation and concentration device of pulverized-coal boiler |
| CN102032585B (en) * | 2010-12-01 | 2013-03-20 | 云南电力技术有限责任公司 | Integrated pulverized coal separation and concentration device of pulverized-coal boiler |
| CN105195341A (en) * | 2015-06-09 | 2015-12-30 | 中国大唐集团科学技术研究院有限公司 | Double-in and double-out steel ball coal mill shaft diameter combined separator |
| CN104984911A (en) * | 2015-07-28 | 2015-10-21 | 江苏羚羊水泥工程技术有限公司 | Rotor type powder concentrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |