CN2468612Y - Axial coarse powder separator - Google Patents
Axial coarse powder separator Download PDFInfo
- Publication number
- CN2468612Y CN2468612Y CN 01236184 CN01236184U CN2468612Y CN 2468612 Y CN2468612 Y CN 2468612Y CN 01236184 CN01236184 CN 01236184 CN 01236184 U CN01236184 U CN 01236184U CN 2468612 Y CN2468612 Y CN 2468612Y
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- outer cylinder
- inlet tube
- wind powder
- drum body
- 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
Images
Abstract
The utility model relates to an axial coarse powder separator, which comprises an inner drum body and an outer drum body. The upper part of the channel between the inner drum body and the outer drum body is evenly distributed with the baffles with the open degree adjustable. The lower end of the outer drum body is provided with a powder returning tube and an inlet tube. The upper end of the outer drum body is provided with an outlet tube and an explosion prevention door. The end of the outlet end for the inlet tube is provided with a cone shape splitflow body. The utility model improves the homogeneity for air flow distribution inside the coarse powder separator, reduces the abrasion of device, and improves separating quality and efficiency.
Description
The utility model relates to a kind of separator of separating granular material, particularly the axial mill separator that adopts in the coal dust preparation system of thermal power plant.
At present, generally use axial mill separator in the coal dust preparation system of thermal power plant, the inlet tube of this axial mill separator is a straight tube, wind powder mixed airflow leaves inlet tube and directly clashes into the inner barrel bottom, causes inner barrel bottom serious wear, regional gas stream VELOCITY DISTRIBUTION inequality between the simultaneously inside and outside cylindrical shell, disintegrate-quality (particle size uniformity) and separative efficiency have been reduced, make back in the powder qualified coal dust too much, reduced powder process and exerted oneself, increased the powder process power consumption.
December in 2000 Decree of Patent Office of China on the 13rd the utility model patent (patent No.: ZL00213118.8) disclose a kind of mill separator, former axial mill separator structure is improved, eddy flow diffusion current equalizer is housed at former axial mill separator inlet tube outlet end.This mill separator has improved the operation conditions of former axial mill separator, has improved the efficient of mill separator, but its eddy flow diffusion current equalizer complex structure and flow resistance of installing additional are bigger than normal.
The purpose of this utility model is the separative efficiency of inventing the interior air-flow operating mode of a kind of wearing and tearing, the former axial mill separator of improvement simple in structure, that can alleviate former axial mill separator structure member, the axial mill separator of raising, the axial mill separator that reduces back the qualified powder content in the powder.
The utility model is achieved in that a kind of axial mill separator, comprise inner barrel, outer cylinder body, inside and outside cylindrical shell bottom is pyramid type, inner barrel relies on and to be fixed on the outer cylinder body along the equally distributed gripper shoe of circumference, the passage top baffle plate that aperture can be regulated that is being uniformly distributed along the circumference between inner barrel and the outer cylinder body.There are wind powder outlet and explosion proof door in the upper end of outer cylinder body, and there are wind powder inlet tube and powder retrieving pipe in the lower end of outer cylinder body.It is characterized in that: at the outlet end of wind powder inlet tube pyramid type is housed and divides fluid, the tapered part in outer cylinder body bottom has along the equally distributed air inlet of circumference.
It is truncated cone that circular cone divides fluid, ratio d/D＜0.9 of the top diameter d of truncated cone and wind powder inlet tube diameter D, ratio L/D＞0.1 of the thickness L of frustum and wind powder inlet tube diameter D, angle α=20～80 of frustum rotation bus and its axis °, frustum is by the high-abrasive material manufacturing, with life-saving.
The air inlet of the tapered part in outer cylinder body bottom is 8～40 circular holes of quantity.
The utility model has been installed pyramid type at axial mill separator inlet tube outlet end and has been divided fluid, make exit flow become a kind of speed and CONCENTRATION DISTRIBUTION spreads air-flow uniformly, the breeze airflow of avoiding high speed to concentrate directly washes away the supporting construction between inner barrel bottom and the inside and outside cylindrical shell, alleviates wearing and tearing; The air-flow of this even diffusion simultaneously can also produce uniform reverse impact to the powder that returns that falls along zone between the inside and outside cylindrical shell, further separates back the qualified powder in the powder, reduces back the qualified powder content in the powder; Also will improve the flow distribution evenness in deflector baffle zone, top simultaneously, improve disintegrate-quality and efficient.
Be installed in the flow direction that air inlet on the outer cylinder body circumference can change back powder, will return powder and import the rising primary air, strengthen primary air, reduce back the content of qualified powder in the powder, further improve separative efficiency returning the secondary separation of qualified powder in the powder.
Below in conjunction with accompanying drawing the novel embodiment of this use is described in further detail.
Accompanying drawing 1 is the utility model schematic diagram, wherein:
1-inner barrel, 2-outer cylinder body 3-be folded to controllable register
4-powder retrieving pipe, 5-inlet tube, 6-outlet
7-explosion proof door 8-tapered minute fluid 9-air inlet
Axially the wind powder mixed airflow in the mill separator inlet tube (diameter D=1400 millimeter) (5) is through the tapered shunting body of butt (osculum diameter d=1000 millimeter, thickness L=1000 millimeter, angle α=20 °, make by wear resistant cast iron) (8) rectified diffusion, formation speed and CONCENTRATION DISTRIBUTION spread air-flow uniformly, avoided the direct impact of breeze airflow, alleviated wearing and tearing inner barrel (1).Evenly the air-flow of diffusion rises along the passage between inner barrel (1) and the outer cylinder body (2), being folded to controllable register (3) separates, the meal of separating falls along the outer cylinder body inwall, imported secondary separation in the rising primary air by the exit flow disturbance of 10 air inlets (9) of 80 millimeters of the diameters of outer cylinder body circumference uniform distribution, further reduce the qualified powder content in time powder, improved disintegrate-quality and efficient.
Claims (4)
1, a kind of axial mill separator comprises inner barrel, outer cylinder body.Inside and outside cylindrical shell bottom is pyramid type, and inner barrel relies on and is fixed on the outer cylinder body along the equally distributed gripper shoe of circumference, the passage top baffle plate that aperture can be regulated that is being uniformly distributed along the circumference between inner barrel and the outer cylinder body.There are wind powder outlet and explosion proof door in the upper end of outer cylinder body, and there are wind powder inlet tube and powder retrieving pipe in the lower end of outer cylinder body.It is characterized in that: at the outlet end of wind powder inlet tube pyramid type is housed and divides fluid, the tapered part in outer cylinder body bottom has along the equally distributed air inlet of circumference.
2, according to the described axial mill separator of claim 1, it is characterized in that: it is truncated cone that circular cone divides fluid, ratio d/D＜0.9 of the top diameter d of truncated cone and wind powder inlet tube diameter D, ratio L/D＞0.1 of the thickness L of frustum and wind powder inlet tube diameter D, angle α=20～80 of frustum rotation bus and its axis °.
3, according to claim 1 or 2 described axial mill separators, it is characterized in that: the air inlet of the tapered part in described outer cylinder body bottom is 8～40 circular holes of quantity.
4, according to the described axial mill separator of claim 3, it is characterized in that: fluid was made by high-abrasive material in described tapered minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01236184 CN2468612Y (en) | 2001-03-29 | 2001-03-29 | Axial coarse powder separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01236184 CN2468612Y (en) | 2001-03-29 | 2001-03-29 | Axial coarse powder separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2468612Y true CN2468612Y (en) | 2002-01-02 |
Family
ID=33649191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01236184 Expired - Fee Related CN2468612Y (en) | 2001-03-29 | 2001-03-29 | Axial coarse powder separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2468612Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138848A (en) * | 2020-09-16 | 2020-12-29 | 华润电力湖北有限公司 | Axial separator of coal mill |
-
2001
- 2001-03-29 CN CN 01236184 patent/CN2468612Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138848A (en) * | 2020-09-16 | 2020-12-29 | 华润电力湖北有限公司 | Axial separator of coal mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110788005B (en) | Centrifugal air classifier for superfine powder | |
| CN201357145Y (en) | Efficient rotor type metal mineral powder choosing machine | |
| CN201441979U (en) | Axial coarse powder separator | |
| CN111515129A (en) | Novel adjusting coarse powder separator and working method | |
| CN2410042Y (en) | Axial direction coarse grain separator | |
| CN1035885A (en) | Heat exchanger | |
| CN2468612Y (en) | Axial coarse powder separator | |
| CN202155314U (en) | Centrifugal horizontal cage type powder separator with forced vortex | |
| CN204842208U (en) | Wheeled air current selection powder machine crouches | |
| CN109999962A (en) | A kind of overhang roll mill with air ducting | |
| CN207308092U (en) | A kind of dilute suspension state dry separator | |
| CN206642870U (en) | The used mill separator of binary channels rotation | |
| CN204074519U (en) | Pulverized coal preparation system New Type of Separator | |
| CN2184490Y (en) | Adjustable whirlwind separator | |
| CN212821149U (en) | Novel adjust middlings separator | |
| CN202224254U (en) | Hydroclone | |
| CN109127169A (en) | A kind of side air inlet Verticle vortex powder concentrator selects powder method and application | |
| CN2240399Y (en) | Gas current powder grainess grading machine | |
| CN204035032U (en) | A kind of wind formula of sweeping is association of activity and inertia high efficiency dust separator | |
| CN2444688Y (en) | Reseparation multi-channel coarse powder separator | |
| CN106622617A (en) | Dual-channel rotation inertia coarse powder separator | |
| CN202403541U (en) | Cyclone smelting nozzle and smelting furnace | |
| CN2249642Y (en) | High performance rotary powder separator | |
| CN207330975U (en) | The tangential multi-pipeline cyclone dust collectors of blast furnace gas primary dedusting | |
| CN207929429U (en) | A kind of cyclone separator |
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 |