CN202082919U - Positive pressure impact pulverized coal burner - Google Patents
Positive pressure impact pulverized coal burner Download PDFInfo
- Publication number
- CN202082919U CN202082919U CN2011201842314U CN201120184231U CN202082919U CN 202082919 U CN202082919 U CN 202082919U CN 2011201842314 U CN2011201842314 U CN 2011201842314U CN 201120184231 U CN201120184231 U CN 201120184231U CN 202082919 U CN202082919 U CN 202082919U
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- coal burner
- pulverized coal
- side wall
- transition region
- 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 particularly relates to a positive pressure impact pulverized coal burner, overcoming the shortcomings in the conventional pulverized coal burner. The positive pressure impact pulverized coal burner comprises a combustion chamber fixed on the left side of a hearth, the combustion chamber comprises a power region and a transition region distributed on the left and on the right respectively, the diameter of the power region is greater than that of the transition region, a plurality of crushing air holes are formed on the side wall of the transition region, a mixing cavity communicated with and tangent to the combustion chamber is arranged at the left end of the combustion chamber, an auxiliary box body sleeved on the side wall of the combustion chamber is arranged on the right side of the mixing cavity, a secondary air cavity communicated with the left end of the auxiliary box body is arranged on the auxiliary box body, an arced wind belt hole communicated with the hearth is formed on the right side wall of the secondary air cavity, and a booster pipe is arranged between and communicated with the secondary air cavity and the left side wall of the combustion chamber. The positive pressure impact pulverized coal burner has the advantages of reliable and reasonable structural design, stable and full combustion, enlarged coal type application range, prolonged service life, less harmful gas, better environment-friendly property, simple structure, convenience in operation, and low cost.
Description
Technical field
The utility model relates to coal burner, is specially a kind of malleation bump coal burner.
Background technology
Coal burner is meant coal dust preparation system is not injected burner hearth with certain concentration and speed for coal air mixture (wind) that comes and the required secondary air separating of burning, realizes the device of stable ignition and burning under suspended state.Traditional coal burner has the following disadvantages: 1, with burner hearth apart from weak point, the burning wind speed fast, cause the sordid problem of carbon burning in the coal dust; 2, light the back programming rate slow, the carbon in the coal dust can not be burnt as early as possible; 3, in burner hearth, there are dust stratification and slagging scorification phenomenon; 4, can not use the low calorie fuels coal that is lower than 5500kcal/kg, have limitation; 5, burning is insufficient, and efficiency of combustion is low.
Summary of the invention
The utility model provides a kind of malleation bump coal burner in order to solve the problem that there is above-mentioned weak point in existing coal burner.
The utility model is to adopt following technical scheme to realize: malleation bump coal burner, comprise the combustion chamber of being fixed in the burner hearth left side, the combustion chamber by about the power-section and the transition region that distribute form, and the diameter of power-section is greater than transition region, the sidewall of transition region has some broken wind hole, the left end of combustion chamber is provided with mixing chamber tangent with it and that communicate, the mixing chamber right side is provided with the auxiliary casing that is enclosed within on the sidewall of combustion chamber, auxiliary casing is provided with the secondary wind cavity that communicates with its left end, it is with holes that secondary wind cavity right side wall has the arcuation wind that communicates with burner hearth, and be provided with the boost tube that is communicated with both between secondary wind cavity and the combustion chamber left side wall.During use, because the diameter of combustion chamber transition region is less than power-section, so wind in the mixing chamber and coal dust be mixed into the power-section of combustion chamber, and power-section fuel combustion pressure is greater than atmospheric pressure, makes coal dust heat up rapidly and burn as early as possible; And the secondary wind in the secondary wind cavity enters auxiliary casing, the heat energy that discharges with sidewall of combustion chamber carries out heat exchange, secondary wind after the preheating through broken wind aperture to the transition region that is blown into the combustion chamber, rotation wind in the power-section of combustion chamber blows to right-hand screw under the promotion of secondary wind, combine with radially secondary wind and to carry out repeatedly high-speed impact, accelerated the burning velocity of coal dust; That wind is crossed in wind is with holes in holes being arranged so that of wind simultaneously, in horizontal boiler, form the wind band of arcuation, the pulverized coal particle of hot mastication carries out the transition to the low-temperature space of burner hearth afterbody under the escorting of wind band, make it change into solid particle, take away by the soot emissions air-flow, overcome existing coal burner and had that coal dust firing is clean, speed reaches problems such as dust stratification, slagging scorification slowly.
The utility model reasonable in design is reliable, and sufficient combustion is stable, has enlarged the accommodation of coal, has prolonged service life, has reduced the generation of pernicious gas simultaneously, and environmental-protecting performance promotes, and has advantage simple in structure, easy to operate and that cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: the 1-combustion chamber, the 2-power-section, the 3-transition region, the broken wind of 4-hole, the 5-mixing chamber, 6-assists casing, 7-secondary wind cavity, 8-wind is with holes, the 9-boost tube.
The specific embodiment
Malleation bump coal burner, comprise the combustion chamber 1 of being fixed in the burner hearth left side, combustion chamber 1 by about the power-section 2 and the transition region 3 that distribute form, and the diameter of power-section 2 is greater than transition region 3, the sidewall of transition region 3 has some broken wind hole 4, the left end of combustion chamber 1 is provided with mixing chamber 5 tangent with it and that communicate, mixing chamber 5 right sides are provided with the auxiliary casing 6 that is enclosed within on 1 sidewall of combustion chamber, auxiliary casing 6 is provided with the secondary wind cavity 7 that communicates with its left end, it is with holes 8 that secondary wind cavity 7 right side walls have the arcuation wind that communicates with burner hearth, and be provided with the boost tube 9 that is communicated with both between secondary wind cavity 7 and combustion chamber 1 left side wall.
Claims (1)
1. a malleation is clashed into coal burner, comprise the combustion chamber (1) of being fixed in the burner hearth left side, it is characterized in that: combustion chamber (1) by about the power-section (2) and the transition region (3) that distribute form, and the diameter of power-section (2) is greater than transition region (3), the sidewall of transition region (3) has some broken wind holes (4), the left end of combustion chamber (1) is provided with mixing chamber (5) tangent with it and that communicate, mixing chamber (5) right side is provided with the auxiliary casing (6) that is enclosed within on the sidewall of combustion chamber (1), auxiliary casing (6) is provided with the secondary wind cavity (7) that communicates with its left end, secondary wind cavity (7) right side wall has the arcuation wind that communicates with burner hearth (8) with holes, and is provided with the boost tube (9) that is communicated with both between secondary wind cavity (7) and combustion chamber (1) left side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201842314U CN202082919U (en) | 2011-06-02 | 2011-06-02 | Positive pressure impact pulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201842314U CN202082919U (en) | 2011-06-02 | 2011-06-02 | Positive pressure impact pulverized coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082919U true CN202082919U (en) | 2011-12-21 |
Family
ID=45343546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201842314U Expired - Lifetime CN202082919U (en) | 2011-06-02 | 2011-06-02 | Positive pressure impact pulverized coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226521A (en) * | 2011-06-02 | 2011-10-26 | 徐衡 | Positive pressure strike coal burner |
-
2011
- 2011-06-02 CN CN2011201842314U patent/CN202082919U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226521A (en) * | 2011-06-02 | 2011-10-26 | 徐衡 | Positive pressure strike coal burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111221 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |