CN202284791U - Burner of decomposition furnace with variable air flow fields - Google Patents
Burner of decomposition furnace with variable air flow fields Download PDFInfo
- Publication number
- CN202284791U CN202284791U CN2011204063406U CN201120406340U CN202284791U CN 202284791 U CN202284791 U CN 202284791U CN 2011204063406 U CN2011204063406 U CN 2011204063406U CN 201120406340 U CN201120406340 U CN 201120406340U CN 202284791 U CN202284791 U CN 202284791U
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- CN
- China
- Prior art keywords
- coal
- decomposition furnace
- air flow
- flow fields
- 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 belongs to the field of production facility parts in cement industries, particularly relates to a burner of a decomposition furnace with variable air flow fields, and aims at improving burning efficiency of pulverized coal in the decomposition furnace by adjusting dispersing degree and mixing degree of the pulverized coal in the decomposition furnace with different air flow fields. The technical scheme is that the burner of the decomposition furnace with the variable air flow fields comprises a coal wind channel composed of a coal wind inner tube and a coal wind outer tube, wherein the outer end portion of the coal wind channel is composed of a female cone and a male cone which can respectively move along the axial direction and change relative positions. One pipe fitting in the coal wind channel can be adjusted in forward and backward movement to adjust the dispersing degree and the mixing degree of the pulverized coal in the decomposition furnace with the different air flow fields and improve the burn-off rate of the pulverized coal in the decomposition furnace. The burner of the decomposition furnace with the variable air flow fields reduces mechanical incomplete combustion of the pulverized coal, saves coal consumed amount, reduces heat consumption and carbon dioxide emission, and is simple in structure and reliable in operation.
Description
Technical field
The utility model belongs to cement industry production equipment field of components, is specifically related to a kind of variable flow field dore furnace burner.
Background technology
The dore furnace burner that uses at present generally comprises 3-4 air channel, is respectively clean wind passage, coal wind duct and center wind duct.Wherein coal wind duct generally is the straight shape passage of annular, and coal dust is directly forwards when in passage, coming out, and does not have disperse function, and the burning of coal dust does not reach optimum efficiency, and energy consumption is higher.In addition, existing dore furnace generally is to adopt the method for regulating clean wind air quantity to regulate degree of scatter and the mixability of clean wind wind speed with the control coal dust, and the effect dynamics of this regulative mode is less.
The utility model content
The purpose of the utility model is prior art is improved, and provides a kind of through regulating degree of scatter and the mixability of coal dust in the dore furnace of different airflow fields, to improve the dore furnace burner of the combustion rate of coal dust in dore furnace.
The technical scheme of the utility model is: a kind of variable flow field dore furnace burner, comprise coal wind duct, and coal wind duct is made up of pipe and coal wind outer tube in the coal wind, and the outer end of coal wind duct is made up of female cone and two circular cones of outer cone.The relative axial position of female cone and outer cone can be regulated, to change the annulus area of the coal wind duct that is formed by two circular cones.
After the utility model carries out above-mentioned improvement to prior art; Because a circular cone in the coal wind duct can move forward and backward adjusting; Change the sectional area of passage, thereby change the speed of coal wind ejection, clean wind is changed to the immixture of coal dust; Not only can control the air line distance of coal dust ejection; Also can control the mixability of coal dust and outer clean wind, the state of coal dust when ejection coal powder injection pipe changed, thereby reach the purpose of regulating the degree of scatter of coal dust in the dore furnace of different airflow fields and mixability, the burn-off rate of raising coal dust in dore furnace.And can increase the touch opportunity of high-temperature gas in coal dust and the dore furnace, and make its even calibration in dore furnace easily, guarantee temperature field uniform and stable in the stove; Reduce the phenomenon of the mechanical incomplete combustion of coal dust; The amount of being sparing in the use of coal reduces hear rate, reduces emission of carbon-dioxide.The utility model is simple in structure, and is reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Wherein, 1, cyclone, 2, coal wind outer tube, 3, coal wind duct, 4, clean wind passage, 5, female cone, 6, outer cone, 7, pipe in the coal wind.
The specific embodiment
Below in conjunction with accompanying drawing utility model is further specified.
Referring to Fig. 1, the utility model comprises coal wind duct 3 and clean wind passage 4, and the end of clean wind passage 4 is provided with cyclone 1, and coal wind duct 3 is made up of with coal wind outer tube 7 pipe 2 in the coal wind, and the outer end of coal wind duct 3 is made up of female cone 5 and 6 two circular cones of outer cone.The relative axial position of two circular cones can change.
Coal dust receives the influence of inside and outside conical surface angle when ejection coal wind duct 3, to the ejection of clean wind passage 4 directions, thus the ability of enhancing coal wind direction external diffusion.
Claims (1)
1. variable flow field dore furnace burner; Comprise coal wind duct; It is characterized in that said coal wind duct is made up of pipe and coal wind outer tube in the coal wind, the outer end of coal wind duct is made up of female cone and two circular cones that can change relative position vertically of outer cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204063406U CN202284791U (en) | 2011-10-22 | 2011-10-22 | Burner of decomposition furnace with variable air flow fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204063406U CN202284791U (en) | 2011-10-22 | 2011-10-22 | Burner of decomposition furnace with variable air flow fields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284791U true CN202284791U (en) | 2012-06-27 |
Family
ID=46296312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204063406U Expired - Lifetime CN202284791U (en) | 2011-10-22 | 2011-10-22 | Burner of decomposition furnace with variable air flow fields |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284791U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809151A (en) * | 2012-08-23 | 2012-12-05 | 上海三融环保工程有限公司 | Oxygen-deficient combustion denitration combustor arranged in cement decomposing furnace |
| CN105953224A (en) * | 2016-06-20 | 2016-09-21 | 上海三融环保工程有限公司 | Saturated steam catalytic burner used for cement decomposition furnace |
| US9709269B2 (en) | 2014-01-07 | 2017-07-18 | Air Products And Chemicals, Inc. | Solid fuel burner |
-
2011
- 2011-10-22 CN CN2011204063406U patent/CN202284791U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809151A (en) * | 2012-08-23 | 2012-12-05 | 上海三融环保工程有限公司 | Oxygen-deficient combustion denitration combustor arranged in cement decomposing furnace |
| US9709269B2 (en) | 2014-01-07 | 2017-07-18 | Air Products And Chemicals, Inc. | Solid fuel burner |
| CN105953224A (en) * | 2016-06-20 | 2016-09-21 | 上海三融环保工程有限公司 | Saturated steam catalytic burner used for cement decomposition furnace |
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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: 20120627 |
|
| CX01 | Expiry of patent term |