CN205949032U - A coal dust classifier for intermediate speed is ground - Google Patents
A coal dust classifier for intermediate speed is ground Download PDFInfo
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- CN205949032U CN205949032U CN201620944497.7U CN201620944497U CN205949032U CN 205949032 U CN205949032 U CN 205949032U CN 201620944497 U CN201620944497 U CN 201620944497U CN 205949032 U CN205949032 U CN 205949032U
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- vertebral body
- interior
- coal
- centrum
- coal dust
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Abstract
The utility model discloses a coal dust classifier for intermediate speed is ground, the interior centrum and the outer centrum of being in the same place including the suit, outer centrum lower part is equipped with the base, and the base side is equipped with wind and enters the mouth, be equipped with the axial separator between interior centrum and the outer cone parts on the passageway, the upper end of interior centrum is provided with a plurality of radial stator blades, be provided with shutter grid separator between the axis of radial stator blade and interior centrum, upper portion and the pulverized coal distributor of outer centrum are connected, pulverized coal distributor's upper portion is equipped with into coal pipe, it communicates with each other with interior centrum to advance the coal pipe. The utility model discloses a carrying out three stagings to the buggy, having good separation performance, reduce powder system resistance, the increase is exerted oneself, and the coal pulverizer unit consumption reduces, reaches the effect of economical combustion.
Description
Technical field
This utility model patent belongs to field of thermal power.It is related to Mill Systems, be particularly applicable in medium-speed pulverizer coal pulverizer
Outlet, carries out the detached device of coal dust.
Background technology
Coal dust classifier is one of key equipment of thermal power plant's medium-speed milling pulverization system, and its performance is to the operation of boiler and effect
Rate impact is larger.The coal dust classifier using at present exposes Mill output not due to the unreasonable of design so as to be in operation
Foot, coal dust is excessively thick, lack of homogeneity, resistance big, dynamic separator and pulverizer capacity mismatch, serious wear and powder power consumption processed are high
The problems such as.These problems all directly affect economy and the reliability of boiler and whole unit.
Content of the invention
For the problems referred to above, the utility model discloses a kind of coal dust classifier for medium-speed pulverizer as follows.
A kind of coal dust classifier for medium-speed pulverizer, including the interior vertebral body being set in together and outer vertebral body, described outer vertebral body
Bottom is provided with base, and base side is provided with wind entrance, and between described interior vertebral body and Outer Taper, passage is provided with axial separation device, institute
The upper end stating interior vertebral body is provided with multiple radial direction stator blades, is provided with hundred between described radial direction stator blade and the axis of interior vertebral body
Leaf window grid separator；The top of described outer vertebral body is connected with pulverized coal distributor, and the top of described pulverized coal distributor is provided with into coal
Pipe, described coal feeding pipe is communicated with interior vertebral body.
Further, described axial separation device is ring-type.
Further, described axial separation device is made up of axial baffle and rotating shaft, and described axial baffle is movably arranged at
Two ends are individually fixed on outer vertebral body inner surface and the rotating shaft of interior vertebral body outer surface.
Further, described BAIYE window grid separator and a motor connection.
Compared with prior art, this utility model has following technique effect：
1. this utility model passes through the separation of three-level coal dust, can improve Mill output, reduces powder power consumption processed, flexible adjustment, adjusts
Adjusting range is larger, can adjust fineness of pulverized coal so that fineness of pulverized coal is in economical finesse state all the time under different loads；
2. device of the present utility model is easy to implement, reliability is high, effectively improve the separation effect that improve coal machine separator
Rate, coal dust firing is in economical finesse all the time.
Brief description
Fig. 1 is overall structure cut-away view of the present utility model；
Fig. 2 is BAIYE window grid top view in this utility model；
In figure label represents：1 axial separation device；2 radial blades；3 BAIYE window grid separators；4—；5—
Coal feeding pipe；Vertebral body in 6；7 outer vertebral bodys；8 bases.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
A kind of coal dust classifier for medium-speed pulverizer, including the interior vertebral body 6 being set in together and outer vertebral body 7, described outer vertebra
Body 7 bottom is provided with base 8, and base 8 side is provided with wind entrance, and between described interior vertebral body 6 and Outer Taper 7, passage is provided with and axially divides
From device 1, using shock and the effect that is folded to of axial separation device 1, the interception bringing and inertial separation carry out flash trapping stage；Described interior
The upper end of vertebral body 6 is provided with multiple radial direction stator blades 2, and shock and the effect that is folded to using radial direction stator blade carry out the second-order separation；
It is provided with BAIYE window grid separator 3 between described radial direction stator blade 2 and the axis of interior vertebral body 6, can more flexibly adjust
Fineness of pulverized coal is so that fineness of pulverized coal is in economical finesse state all the time；The top of described outer vertebral body 7 is connected with pulverized coal distributor,
The top of described pulverized coal distributor is provided with coal feeding pipe 5, and described coal feeding pipe 5 is communicated with interior vertebral body 6.
Specifically, described axial separation device 1 is ring-type.In the present embodiment, axial separation device 1 adopts high-abrasive material B-
HARD400.
Specifically, described axial separation device 1 is made up of axial baffle and rotating shaft, and described axial baffle is movably arranged at two
End is individually fixed on outer vertebral body 7 inner surface and the rotating shaft of interior vertebral body 6 outer surface, can make coal dust by controllable register angle
It is folded to more flexible.
Specifically, described BAIYE window grid separator 3 and a motor connection, can more flexibly adjust coal dust by motor
Fineness is so that fineness of pulverized coal is in economy all the time.
Claims (4)
1. a kind of coal dust classifier for medium-speed pulverizer, including the interior vertebral body (6) being set in together and outer vertebral body (7), described outer
Vertebral body (7) bottom is provided with base (8), and base (8) side is provided with wind entrance it is characterised in that described interior vertebral body (6) and outer vertebral body
(7) between, passage is provided with axial separation device (1), and the upper end of described interior vertebral body (6) is provided with multiple radial direction stator blades (2), institute
State and between radial direction stator blade (2) and the axis of interior vertebral body (6), be provided with BAIYE window grid separator (3)；Described outer vertebral body (7)
Top be connected with pulverized coal distributor, the top of described pulverized coal distributor is provided with coal feeding pipe (5), described coal feeding pipe (5) and interior vertebra
Body (6) communicates.
2. coal dust classifier as claimed in claim 1 is it is characterised in that described axial separation device (1) is ring-type.
3. coal dust classifier as claimed in claim 1 is it is characterised in that described axial separation device (1) by axial baffle and turns
Axle forms, and described axial baffle is movably arranged at two ends and is individually fixed in outer vertebral body (7) inner surface and interior vertebral body (6) outer surface
Rotating shaft on.
4. coal dust classifier as claimed in claim 1 is it is characterised in that described BAIYE window grid separator (3) and a motor
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944497.7U CN205949032U (en) | 2016-08-25 | 2016-08-25 | A coal dust classifier for intermediate speed is ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944497.7U CN205949032U (en) | 2016-08-25 | 2016-08-25 | A coal dust classifier for intermediate speed is ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205949032U true CN205949032U (en) | 2017-02-15 |
Family
ID=57979629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620944497.7U Active CN205949032U (en) | 2016-08-25 | 2016-08-25 | A coal dust classifier for intermediate speed is ground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205949032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339656A (en) * | 2018-02-23 | 2018-07-31 | 烟台龙源电力技术股份有限公司 | A kind of coal-burning boiler pulverized coal preparation system and its dynamic separator |
| CN109967217A (en) * | 2019-03-28 | 2019-07-05 | 中国华能集团清洁能源技术研究院有限公司 | A kind of axial separation device and its separation method for medium-speed pulverizer |
-
2016
- 2016-08-25 CN CN201620944497.7U patent/CN205949032U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339656A (en) * | 2018-02-23 | 2018-07-31 | 烟台龙源电力技术股份有限公司 | A kind of coal-burning boiler pulverized coal preparation system and its dynamic separator |
| CN109967217A (en) * | 2019-03-28 | 2019-07-05 | 中国华能集团清洁能源技术研究院有限公司 | A kind of axial separation device and its separation method for medium-speed pulverizer |
| CN109967217B (en) * | 2019-03-28 | 2024-06-21 | 中国华能集团清洁能源技术研究院有限公司 | Axial separator for medium-speed coal mill and separation method of axial separator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |