CN204544751U - A kind of device for improving separator for coal mill separative efficiency - Google Patents
A kind of device for improving separator for coal mill separative efficiency Download PDFInfo
- Publication number
- CN204544751U CN204544751U CN201420791924.3U CN201420791924U CN204544751U CN 204544751 U CN204544751 U CN 204544751U CN 201420791924 U CN201420791924 U CN 201420791924U CN 204544751 U CN204544751 U CN 204544751U
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- coal
- separator
- projected parts
- strip projected
- housing
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- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The utility model discloses a kind of device for improving separator for coal mill separative efficiency, the windward side of baffle plate is provided with strip projected parts, strip projected parts is for stopping breeze airflow, breeze airflow is made to produce turbulent flow, breeze airflow repeatedly clashes into strip projected parts and the deceleration of rough coal powder is fallen, and is got back in coal pulverizer again grind by powder retrieving pipe.Device of the present utility model can arrange special, wear-resistant square steel on the baffle plate of separator for coal mill, improves the separative efficiency of coal machine separator.Apparatus structure of the present utility model is simple, easy to implement, reliability is high, effectively improve the advantages such as the separative efficiency of coal machine separator.
Description
Technical field
The utility model belongs to power generation field, relates to separator for coal mill, is specifically related to a kind of device for improving separator for coal mill separative efficiency.
Background technology
Generating plant pulverized coal boiler in combustion, for ensureing its security and economy, there are certain requirements the fineness of the coal dust entering hearth combustion, needs it in certain scope.And coal pulverizer to go out powder fineness relevant with coal pulverizer ventilation, coal-supplying amount and cyclone performance.In the process of actual motion, the ventilation of coal pulverizer and coal-supplying amount change along with the change of the load of boiler, and this goes out powder fineness with regard to needing by what regulate the baffle opening of coal pulverizer to control coal pulverizer.The baffle plate of existing separator for coal mill adopts one block of plain plate to make, and controllable register aperture goes out powder fineness impact not quite to coal pulverizer, and thus the separative efficiency of separator for coal mill is not high.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is, provides a kind of device for improving separator for coal mill separative efficiency, solves the problem that existing separator for coal mill separative efficiency is low.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme to be achieved:
For improving a device for separator for coal mill separative efficiency, comprise separator for coal mill, separator for coal mill comprises housing, and housing lower end is provided with powder inlet pipe, and housing epimere is provided with flour extraction pipe, and housing lower end is also provided with the powder retrieving pipe be communicated with coal pulverizer; In housing, suspension has cone, be provided with in gap between cone and housing and be arranged on the adjustable baffle plate of housing upper angle, an angle can be regulated when baffle plate uses and between the axis of separator for coal mill, being windward side with the side of breeze airflow direction front face, is not leeward side with the side of breeze airflow direction front face;
The windward side of described baffle plate is provided with strip projected parts, and strip projected parts, for stopping breeze airflow, makes breeze airflow produce turbulent flow, and breeze airflow repeatedly clashes into strip projected parts and the deceleration of rough coal powder is fallen, and is got back in coal pulverizer again grind by powder retrieving pipe.
The utility model also has distinguishes technical characteristic as follows:
The axis of described strip projected parts is vertical with breeze airflow direction.
Described baffle plate is trapezoidal plate, the axis of strip projected parts and the upper base of trapezoidal plate and vertical setting of going to the bottom.
Described strip projected parts is square steel.
Spacing between described square steel is 100mm, and the cross section of square steel is 30mm × 30mm, and the length of square steel is equal with the length of the position on the baffle plate of square steel place.
The utility model compared with prior art, has following technique effect:
Device of the present utility model can arrange special, wear-resistant square steel on the baffle plate of separator for coal mill, improves the separative efficiency of coal machine separator.Apparatus structure of the present utility model is simple, easy to implement, reliability is high, effective raising improves the advantages such as the separative efficiency of coal machine separator.
Accompanying drawing explanation
Fig. 1 is the structural representation of separator for coal mill.
Fig. 2 be baffle plate of the present utility model face structural representation.
Fig. 3 is the side-looking structural representation of baffle plate of the present utility model.
Fig. 4 is the operation principle schematic diagram of baffle plate of the present utility model.
In figure, the implication of each label is: 1-separator for coal mill, 2-housing, 3-powder inlet pipe, 4-flour extraction pipe, 5-powder retrieving pipe, 6-cone, 7-baffle plate, (7-1)-windward side, (7-2)-leeward side, (7-3)-strip projected parts.
Below in conjunction with accompanying drawing, explanation is further explained in detail to particular content of the present utility model.
Detailed description of the invention
Below provide specific embodiment of the utility model, it should be noted that the utility model is not limited to following specific embodiment, all equivalents done on technical scheme basis all fall into protection domain of the present utility model.
Embodiment:
Defer to technique scheme, as shown in Figure 1 to Figure 3, the present embodiment provides a kind of device for improving separator for coal mill separative efficiency, comprise separator for coal mill 2, separator for coal mill 1 comprises housing 2, housing 2 lower end is provided with powder inlet pipe 3, and housing 2 epimere is provided with powder delivery 4 and manages, and housing 2 lower end is also provided with the powder retrieving pipe 5 be communicated with coal pulverizer; In housing 5, suspension has cone 6, be provided with in gap between cone 6 and housing 2 and be arranged on the adjustable baffle plate 7 of housing 2 upper angle, an angle can be regulated when baffle plate 7 uses and between the axis of separator for coal mill 1, being windward side 7-1 with the side of breeze airflow direction front face, is not leeward side 7-2 with the side of breeze airflow direction front face;
The windward side 7-1 of described baffle plate 7 is provided with strip projected parts 7-3, strip projected parts 7-3 is for stopping breeze airflow, make breeze airflow produce turbulent flow, breeze airflow repeatedly clashes into strip projected parts and the deceleration of rough coal powder is fallen, and is got back in coal pulverizer again grind by powder retrieving pipe 5.
The axis of strip projected parts 7-3 is vertical with breeze airflow direction, stops breeze airflow better, makes breeze airflow produce turbulent flow.
Baffle plate 7 is trapezoidal plate, the axis of strip projected parts 7-3 and the upper base of trapezoidal plate and vertical setting of going to the bottom.
Strip projected parts 7-3 is square steel, and material is wear-resisting cast steel with high chromium.
Spacing between square steel is 100mm, and the cross section of square steel is 30mm × 30mm, and the length of square steel is equal with the length of the position on square steel place baffle plate 7.
The course of work of the present utility model is as described below:
The powder delivery of coal pulverizer enters separator for coal mill 1 by the powder inlet pipe 3 of separator for coal mill 1, and a part of rough coal powder directly impinges upon in cone 6, falls into powder retrieving pipe 5 and is back to coal pulverizer and again grinds.Another part meal continues up along the gap between cone 6 and housing 2.In separator for coal mill 1 course of work, baffle plate 7 is in certain angle, and this angle can adjust according to actual needs.When breeze airflow reaches baffle plate 7, form the flow field parallel with the windward side 7-1 of baffle plate 7, when its upper body is to strip projected parts 7-3, produce turbulent flow, rough coal powder loses speed up in turbulent flow, even obtains downward speed, thus falls to powder retrieving pipe 5 and is back to coal pulverizer and again grinds.Multiple row strip projected parts 7-3 makes breeze airflow repeatedly be in turbulent condition, repeatedly removes the meal in breeze airflow, finally controls coal pulverizer and go out powder fineness, thus improve the separative efficiency of separator for coal mill.
Claims (5)
1. one kind for improving the device of separator for coal mill separative efficiency, comprise separator for coal mill (2), separator for coal mill (1) comprises housing (2), housing (2) lower end is provided with powder inlet pipe (3), housing (2) epimere is provided with flour extraction pipe (4), and housing (2) lower end is also provided with the powder retrieving pipe (5) be communicated with coal pulverizer; In housing (5), suspension has cone (6), be provided with in gap between cone (6) and housing (2) and be arranged on the adjustable baffle plate of housing (2) upper angle (7), an angle can be regulated when baffle plate (7) uses and between the axis of separator for coal mill (1), be windward side (7-1) with the side of breeze airflow direction front face, be not leeward side (7-2) with the side of breeze airflow direction front face, it is characterized in that:
The windward side (7-1) of described baffle plate (7) is provided with strip projected parts (7-3), strip projected parts (7-3) is for stopping breeze airflow, breeze airflow is made to produce turbulent flow, breeze airflow repeatedly clashes into strip projected parts and the deceleration of rough coal powder is fallen, and is got back in coal pulverizer again grind by powder retrieving pipe (5).
2. device as claimed in claim 1, is characterized in that: the axis of described strip projected parts (7-3) is vertical with breeze airflow direction.
3. device as claimed in claim 2, is characterized in that: described baffle plate (7) is trapezoidal plate, the axis of strip projected parts (7-3) and the upper base of trapezoidal plate and vertical setting of going to the bottom.
4. device as claimed in claim 1, is characterized in that: described strip projected parts (7-3) is square steel.
5. device as claimed in claim 4, it is characterized in that: the spacing between described square steel is 100mm, the cross section of square steel is 30mm × 30mm, and the length of square steel is equal with the length of the position on square steel place baffle plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420791924.3U CN204544751U (en) | 2014-12-12 | 2014-12-12 | A kind of device for improving separator for coal mill separative efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420791924.3U CN204544751U (en) | 2014-12-12 | 2014-12-12 | A kind of device for improving separator for coal mill separative efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204544751U true CN204544751U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420791924.3U Expired - Fee Related CN204544751U (en) | 2014-12-12 | 2014-12-12 | A kind of device for improving separator for coal mill separative efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204544751U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744653A (en) * | 2020-06-05 | 2020-10-09 | 华电电力科学研究院有限公司 | Structural system for improving pulverized coal separation efficiency of fan coal mill |
| CN112275635A (en) * | 2020-11-06 | 2021-01-29 | 浙江浙能温州发电有限公司 | Pulverized coal orifice plate screening and refining device |
-
2014
- 2014-12-12 CN CN201420791924.3U patent/CN204544751U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744653A (en) * | 2020-06-05 | 2020-10-09 | 华电电力科学研究院有限公司 | Structural system for improving pulverized coal separation efficiency of fan coal mill |
| CN112275635A (en) * | 2020-11-06 | 2021-01-29 | 浙江浙能温州发电有限公司 | Pulverized coal orifice plate screening and refining device |
| CN112275635B (en) * | 2020-11-06 | 2024-01-12 | 浙江浙能温州发电有限公司 | Pulverized coal pore plate screening and refining device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20151212 |
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| EXPY | Termination of patent right or utility model |