CN202371711U - Concentrator for coal dust combustor - Google Patents
Concentrator for coal dust combustor Download PDFInfo
- Publication number
- CN202371711U CN202371711U CN2011205378846U CN201120537884U CN202371711U CN 202371711 U CN202371711 U CN 202371711U CN 2011205378846 U CN2011205378846 U CN 2011205378846U CN 201120537884 U CN201120537884 U CN 201120537884U CN 202371711 U CN202371711 U CN 202371711U
- Authority
- CN
- China
- Prior art keywords
- inspissator
- coal dust
- coal
- concentrated block
- coal burner
- 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 - Lifetime
Links
Abstract
The utility model discloses a concentrator for a coal dust combustor. The concentrator is arranged in a primary air duct of the coal dust combustor and is provided with a central pipe and an outer sleeve, wherein 2 to 4 rings of annular concentration blocks are arranged on the inner wall of the outer sleeve, the cross section of each annular concentration block is in a wedge shape or in a trapezoid shape, and the diameters of the concentration blocks are reduced gradually in the direction of the nozzle side. By the concentration blocks, primary air coal dust air flow is concentrated in inside and diluted in outside at the nozzle of the combustor.
Description
Technical field
The utility model relates to the inspissator that a kind of coal burner is used.
Background technology
In the power boiler breeze burner; Satisfy the particular burner designing requirement for the distribution that makes a pulverized coal particle in wind/breeze airflow, used various Pulverized Coal Concentration structures, concentrate thereby coal dust is produced; If but deal with improperly; Meeting generation or concentrated effect are not good, or cause problems such as complex structure, serious wear, inaccessible desirable concentrated effect and combustibility requirement.
The utility model content
The purpose of the utility model is to provide a kind of inspissator structure that is applied to the power boiler breeze burner; Be installed in airduct of coal burner; Be used to be implemented in the deep or light distribution radially of burner nozzle place, form dense outer light breeze airflow structure in the pulverized coal particle distribution in wind/breeze airflow.
For realizing above-mentioned purpose, the technical scheme of the utility model is: a kind of coal burner is used inspissator, is installed in airduct of coal burner; Have central tube and outer sleeve; The annular concentrated block is installed on the sleeve lining outside, and its cross section is a wedge or trapezoidal, and 2～4 rings are set; Towards the spout side direction, the diameter of annular concentrated block reduces by ring.
Along airflow direction, the position after leaning on corresponding to concentrated block on the central tube is provided with annular coal dust diversion baffle.
The expansion cone angle of circular ring type concentrated block is 10-35 °.
The expansion cone angle beta of coal dust diversion baffle is 10-35 °.
Near annular concentrated block to the spout place at spout place deep or light separating tube is being set.
Through concentrated block and separating tube structure, make wind breeze airflow in burner nozzle forms dense outside light distribution, through the shift in position of concentrated block, angle changes, and can change final coal powder light-dark ratio.
Description of drawings
Fig. 1 is that coal burner is used the inspissator structural representation
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation, but the utility model is not limited to following embodiment.
As shown in Figure 1; A kind of coal burner is used inspissator, has central tube 1 and outer sleeve 2, on outer sleeve 2 inwalls annular concentrated block 3 is installed; Concentrated block 3 cross sections are wedge or trapezoidal; Be provided with 3 ring concentrated blocks, dwindle by ring towards spout side direction concentrated block diameter, the expansion cone angle of concentrated block 3 is 10-35 °.The 2nd, 3 ring concentrated blocks 3 of reduced can be supported on the central tube 1 or (steel plate of not shown support) on the outer sleeve 2 with the steel plate connection.Effect through concentrated block 3 separates breeze airflow under effect of inertia, form the circumferential in the outer part thin powdered coal air-flow and the thick coal culm air-flow of central side.Between near ring concentrated block 3 of spout and spout, deep or light separating tube 5 is set, divides 2 passages to introduce burner hearths in the bias pulverized coal air-flow, avoid the air-flow after the concentrating and separating to mix again by deep or light separating tube 5.Position after leaning on corresponding to concentrated block 3 on the central tube 1; Coal dust diversion baffle 4 is set; Be used to prevent the wearing and tearing of the breeze airflow that turns to because of inertial separation to cylindrical central sleeve; Coal dust diversion baffle 4 cross sections are wedge or trapezoidal, are provided with 2 ring coal dust diversion baffles 4, and the expansion cone angle beta of coal dust diversion baffle 4 is 10-35 °.
The integral installation of this inspissator is at other structures (like burner) center; Central tube is the same with outer sleeve; Main through with burner on other structures be connected and fix; This body structure does not connect in inspissator, and this inspissator is mainly pointed out on central tube and outer sleeve, to install the concentrated block structure and reached the Pulverized Coal Concentration effect.
Claims (5)
1. a coal burner is used inspissator, is installed in airduct of coal burner, has central tube (1) and outer sleeve (2); It is characterized in that; On sleeve (2) inwall annular concentrated block (3) is installed outside, its cross section is a wedge or trapezoidal, and 2～4 rings are set; Towards the spout side direction, the diameter of concentrated block (3) reduces by ring.
2. coal burner according to claim 1 is used inspissator, it is characterized in that, along airflow direction, the position after central tube (1) upward leans on corresponding to annular concentrated block (3) is provided with coal dust diversion baffle (4).
3. coal burner according to claim 1 is used inspissator, it is characterized in that, the expansion cone angle of said annular concentrated block (3) is 10-35 °.
4. coal burner according to claim 2 is used inspissator, it is characterized in that, the expansion cone angle beta of said coal dust diversion baffle (4) is 10-35 °.
5. use inspissator according to each described coal burner of claim 1 to 4, it is characterized in that, near annular concentrated block (3) to the spout place of spout deep or light separating tube (5) is being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205378846U CN202371711U (en) | 2011-12-20 | 2011-12-20 | Concentrator for coal dust combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205378846U CN202371711U (en) | 2011-12-20 | 2011-12-20 | Concentrator for coal dust combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371711U true CN202371711U (en) | 2012-08-08 |
Family
ID=46595410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205378846U Expired - Lifetime CN202371711U (en) | 2011-12-20 | 2011-12-20 | Concentrator for coal dust combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371711U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162288A (en) * | 2013-03-11 | 2013-06-19 | 扬州晨光特种设备有限公司 | Twin-stage stop-dog-type pulverized coal concentrator |
| CN104764005A (en) * | 2014-01-07 | 2015-07-08 | 气体产品与化学公司 | Solid fuel burner |
| CN105953223A (en) * | 2016-05-11 | 2016-09-21 | 西安交通大学 | Online adjustable pulverized coal concentrator |
| CN110319437A (en) * | 2019-07-09 | 2019-10-11 | 哈尔滨工业大学 | A kind of oxygen-enriched multiple flame vortex coal burner |
-
2011
- 2011-12-20 CN CN2011205378846U patent/CN202371711U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162288A (en) * | 2013-03-11 | 2013-06-19 | 扬州晨光特种设备有限公司 | Twin-stage stop-dog-type pulverized coal concentrator |
| CN103162288B (en) * | 2013-03-11 | 2016-05-11 | 扬州晨光特种设备有限公司 | A kind of twin-stage block type pulverized coal concentrator |
| CN104764005A (en) * | 2014-01-07 | 2015-07-08 | 气体产品与化学公司 | Solid fuel burner |
| US9709269B2 (en) | 2014-01-07 | 2017-07-18 | Air Products And Chemicals, Inc. | Solid fuel burner |
| CN104764005B (en) * | 2014-01-07 | 2017-09-12 | 气体产品与化学公司 | solid fuel burner |
| CN105953223A (en) * | 2016-05-11 | 2016-09-21 | 西安交通大学 | Online adjustable pulverized coal concentrator |
| CN110319437A (en) * | 2019-07-09 | 2019-10-11 | 哈尔滨工业大学 | A kind of oxygen-enriched multiple flame vortex coal burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |