CN202371712U - Concentrator for pulverized coal burner - Google Patents
Concentrator for pulverized coal burner Download PDFInfo
- Publication number
- CN202371712U CN202371712U CN2011205381675U CN201120538167U CN202371712U CN 202371712 U CN202371712 U CN 202371712U CN 2011205381675 U CN2011205381675 U CN 2011205381675U CN 201120538167 U CN201120538167 U CN 201120538167U CN 202371712 U CN202371712 U CN 202371712U
- Authority
- CN
- China
- Prior art keywords
- coal burner
- inspissator
- coal
- pulverized 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
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Abstract
The utility model discloses a concentrator for a pulverized coal burner, which is arranged in a primary air pipe of the pulverized coal burner and is provided with a center pipe and an outer sleeve. Circular ring-shaped concentration blocks are mounted on the center pipe; the section of each circular ring-shaped concentration block is of a wedge or trapezoid shape; two to four circles of the circular ring-shaped concentration blocks are arranged; and the diameters of the concentration blocks are increased circle by circle toward the direction of the nozzle side. Through the concentration blocks, the distribution of the thick outer part and the diluted inner part of primary air pulverized coal airflow can be formed at a nozzle of the burner.
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 pulverized coal particle in wind/breeze airflow distribute outer dense in light breeze airflow structure.
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 central tube, 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 increases by ring.
Along airflow direction, the position after sleeve lining leans on corresponding to concentrated block outside is provided with annular coal dust diversion baffle.
The expansion cone angle of annular 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 outside burner nozzle forms dense in 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, and annular concentrated block 3 is installed on the central tube 1; Concentrated block 3 cross sections are wedge or trapezoidal; Be provided with 3 ring concentrated blocks, amplify by ring towards spout side direction concentrated block diameter, the expansion cone angle of concentrated block 3 is 10-35 °.The 2nd, the 3 ring concentrated blocks 3 that diameter amplifies 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 thick coal culm air-flow of outer wall and lean on the thin powdered coal 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, prevented that bias pulverized coal from mixing once more before spraying into burner hearth by deep or light separating tube 5.Position after leaning on corresponding to concentrated block 3 on sleeve 2 inwalls outside; Coal dust diversion baffle 4 is set, extends out the wearing and tearing of back to outer sleeve 2 to slow down breeze airflow, coal dust diversion baffle 4 cross sections are wedge or trapezoidal; Be provided with 2 ring concentrated blocks 4, 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; Annular concentrated block (3) is installed on central tube (1), and 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) increases by ring.
2. coal burner according to claim 1 is used inspissator, it is characterized in that, along airflow direction, the position after leaning on corresponding to annular concentrated block (3) on sleeve (2) inwall outside 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 |
|---|---|---|---|
| CN2011205381675U CN202371712U (en) | 2011-12-20 | 2011-12-20 | Concentrator for pulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205381675U CN202371712U (en) | 2011-12-20 | 2011-12-20 | Concentrator for pulverized coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371712U true CN202371712U (en) | 2012-08-08 |
Family
ID=46595411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205381675U Expired - Lifetime CN202371712U (en) | 2011-12-20 | 2011-12-20 | Concentrator for pulverized coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371712U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162289A (en) * | 2013-03-11 | 2013-06-19 | 扬州晨光特种设备有限公司 | Rotational flow stopping block type pulverized coal concentrator |
| CN104566357A (en) * | 2013-10-29 | 2015-04-29 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler |
| WO2015062455A1 (en) * | 2013-10-29 | 2015-05-07 | 烟台龙源电力技术股份有限公司 | Pulverised coal burner and boiler |
| CN111998336A (en) * | 2020-09-14 | 2020-11-27 | 哈尔滨锅炉厂有限责任公司 | Direct-flow pulverized coal burner with thick outside and thin inside |
-
2011
- 2011-12-20 CN CN2011205381675U patent/CN202371712U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162289A (en) * | 2013-03-11 | 2013-06-19 | 扬州晨光特种设备有限公司 | Rotational flow stopping block type pulverized coal concentrator |
| CN104566357A (en) * | 2013-10-29 | 2015-04-29 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler |
| WO2015062455A1 (en) * | 2013-10-29 | 2015-05-07 | 烟台龙源电力技术股份有限公司 | Pulverised coal burner and boiler |
| CN111998336A (en) * | 2020-09-14 | 2020-11-27 | 哈尔滨锅炉厂有限责任公司 | Direct-flow pulverized coal burner with thick outside and thin inside |
| CN111998336B (en) * | 2020-09-14 | 2022-07-26 | 哈尔滨锅炉厂有限责任公司 | Direct-flow pulverized coal burner with thick outer part and thin inner part |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |