CN208418702U - A kind of igniter of coal burner - Google Patents
A kind of igniter of coal burner Download PDFInfo
- Publication number
- CN208418702U CN208418702U CN201821008593.6U CN201821008593U CN208418702U CN 208418702 U CN208418702 U CN 208418702U CN 201821008593 U CN201821008593 U CN 201821008593U CN 208418702 U CN208418702 U CN 208418702U
- Authority
- CN
- China
- Prior art keywords
- igniter
- spray orifice
- coal
- jet port
- coal dust
- 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 - Fee Related
Links
Abstract
The utility model discloses a kind of igniter of coal burner, the igniter includes igniter, oil burner nozzle and air register, and the oil burner nozzle is set to igniter front end, and tilts towards First air feeder connection, and the air register is connected with igniter；If the oil burner nozzle includes drier oil spray orifice and coal dust jet port, the coal dust jet port is located in the middle part of nozzle, the oil spray orifice annular array is in coal dust jet port surrounding, the oil spray orifice is round table-like, the oil spray orifice is outer diameter towards First air feeder connection side, and the rotary table inner wall is equipped with several semicircle shape grooves.Oil burner nozzle in the utility model includes oily spray orifice and coal dust jet port, avoids coal dust from burning in the environment of peroxide, high temperature, avoids generating a large amount of prompt NOs, be conducive to environmental protection.
Description
Technical field
The utility model relates to heat energy technology fields, more particularly to a kind of igniter of coal burner.
Background technique
Coal burner, refers to allow coal dust full combustion in a short time, the equipment for generating high temperature eddy current.According to
On the way, coal burner is divided into: 1, the dedicated coal burner of rotary kiln；2, steam coal powder burner；3, asphalt blending station is dedicated
Coal burner.
Coal dust start-up burner includes cylinder shell and end cap, the helix tube across shell, the electricity in shell for sealing both ends
Heat pipe, inner wall and helically coiled at helical cavity in electrothermal tube, liner protection heat-conducting cylinder and explosion proof door, port, conduction
The components such as clamp, simple and reasonable for structure, igniting is rapid.
The bluff body of coal burner at present, structure is relatively simple, and the mixing of coal dust and combustion air is more violent, leads to coal dust
It burns in the environment of peroxide, high temperature rapidly, forms localized hyperthermia, and then generate a large amount of prompt NOs, seriously affect
Environment.If additionally increasing flue gas purifying equipment, need to put into an expense again, and generate additional long-term consumption, it is unfavorable
In production.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of igniter of coal burner.
The technical scheme adopted by the utility model is a kind of igniter of coal burner, the igniter position
In in coal burner secondary air channel, secondary air channel is wrapped on the outside of primary air piping, and the igniter annularly arranges
It is equidistant in First air channel lateral wall, and between adjacent igniter；The igniter includes igniter, oil burner nozzle
And air register, the oil burner nozzle are set to igniter front end, and tilt towards First air feeder connection, the air register and igniting
Device is connected；If the oil burner nozzle includes drier oil spray orifice and coal dust jet port, the coal dust jet port is located in the middle part of oil burner nozzle, institute
Oily spray orifice annular array is stated in coal dust jet port surrounding, the oil spray orifice be it is round table-like, the oil spray orifice is logical towards First air
Road inlet side is outer diameter, and the oil spray orifice inner wall is equipped with several semicircle shape grooves.
Further, the oily spray orifice outer diameter is 2 times of internal diameter.
Further, the oily spray orifice outer diameter is 0.25 times of coal dust jet port diameter.
Further, the coal dust jet port is also round table-like, is outer diameter at the discharge.
Further, the coal dust jet port outer diameter is less than internal diameter.
Further, the coal dust jet port outer diameter is 0.8 times of internal diameter.
Compared with prior art, the utility model has the beneficial effects that
1, the oil burner nozzle in the utility model includes oily spray orifice and coal dust jet port, oily spray orifice be designed as it is round table-like, and
It is relatively large in diameter towards First air feeder connection side, reduces oily spray orifice and generate excessive temperature.
2, the semicircle shape groove of oily spray orifice inner wall equally avoids high-temp combustion, avoids generating a large amount of prompt NOs,
Be conducive to environmental protection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the igniter of the utility model coal burner；
Fig. 2 is the diagrammatic cross-section of the utility model oil burner nozzle.
Wherein: 1- igniter, 2- First air channel, 11- igniter, 12- oil burner nozzle, 13- air register, the spray of 121- oil
Hole, 122- coal dust jet port, 1211- semicircle shape groove.
Specific embodiment
In order to deepen the understanding to the utility model, with reference to the accompanying drawings and examples furtherly to the utility model
Bright, which is only used for explaining the utility model, does not constitute and limits to the protection scope of the utility model.
As depicted in figs. 1 and 2, a kind of igniter of coal burner, the igniter are located at coal burner two
In secondary wind channel, secondary air channel is wrapped on the outside of primary air piping, and the igniter 1 is annularly arranged in First air channel 2
Lateral wall, and be equidistant between adjacent igniter 1；The igniter 1 includes igniter 11, oil burner nozzle 12 and air distribution
Device 13, the oil burner nozzle 12 are set to 11 front end of igniter, and tilt towards 2 entrance of First air channel, the air register 13 with
Igniter 11 is connected；If the oil burner nozzle 12 includes drier oil spray orifice 121 and coal dust jet port 122, the coal dust jet port 122
Positioned at 12 middle part of oil burner nozzle, for oil 121 annular array of spray orifice in 122 surrounding of coal dust jet port, the oil spray orifice 121 is circle
Mesa-shaped, the oil spray orifice 121 are outer diameter towards 2 inlet side of First air channel, and oil 121 inner wall of spray orifice is equipped with several semicircles
Shape groove 1211.
In the above-described embodiments, igniter 11, oil burner nozzle 12 and air register 13 use threaded connection side between three parts
Formula.13 collective effect of furnace lifting stage inflator 11 and air register, atomizer 12 heats first makes burner hearth heat up, and oily spray orifice 121 is set
It is calculated as round table-like, and is relatively large in diameter towards 2 inlet side of First air channel, the semicircle shape groove 1211 of oily 121 inner wall of spray orifice,
Avoid fire box temperature excessively high；Then coal dust is blunt via the burning at 2 middle part of coal dust jet port 122 and First air channel by propeller
Body, coal dust are ignited.After coal dust firing is stablized, igniter 1, which can choose, to be exited, and oil burner nozzle 12 stops working.
In the above-described embodiments, oily 121 outer diameter of spray orifice is 2 times of internal diameter, and oily 121 outer diameter of spray orifice is coal dust jet port
0.25 times of 122 diameters.
In the above-described embodiments, coal dust jet port 122 is also round table-like, is outer diameter, coal dust jet port 122 at discharge
Outer diameter is less than internal diameter, and 122 outer diameter of coal dust jet port is 0.8 times of internal diameter, avoids coal dust from excessively contacting with oxygen, peroxide is avoided to fire
It burns.
What the embodiments of the present invention were announced is preferred embodiment, and however, it is not limited to this, the common skill of this field
Art personnel understand the spirit of the utility model easily according to above-described embodiment, and make different amplification and variation, but as long as
The spirit of the utility model is not departed from, it is all within the protection scope of the present utility model.
Claims (6)
1. a kind of igniter of coal burner, the igniter is located in coal burner secondary air channel, Secondary Air
Channel is wrapped on the outside of primary air piping, it is characterised in that: and the igniter is annularly arranged in First air channel lateral wall, and
And it is equidistant between adjacent igniter；The igniter includes igniter, oil burner nozzle and air register, and the oil burner nozzle is set
It in igniter front end, and tilts towards First air feeder connection, the air register is connected with igniter；The oil burner nozzle packet
If including drier oil spray orifice and coal dust jet port, the coal dust jet port is located in the middle part of oil burner nozzle, and the oil spray orifice annular array is in coal
Powder jet port surrounding, it is described oil spray orifice be it is round table-like, it is described oil spray orifice towards First air feeder connection side be outer diameter, it is described
Oily spray orifice inner wall is equipped with several semicircle shape grooves.
2. the igniter of coal burner according to claim 1, it is characterised in that: the oil spray orifice outer diameter is internal diameter
2 times.
3. the igniter of coal burner according to claim 1 or 2, it is characterised in that: it is described oil spray orifice outer diameter be
0.25 times of coal dust jet port diameter.
4. the igniter of coal burner according to claim 1, it is characterised in that: the coal dust jet port is also round
Mesa-shaped is outer diameter at the discharge.
5. the igniter of coal burner according to claim 1 or 4, it is characterised in that: outside the coal dust jet port
Diameter is less than internal diameter.
6. the igniter of coal burner according to claim 5, it is characterised in that: the coal dust jet port outer diameter is
0.8 times of internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008593.6U CN208418702U (en) | 2018-06-28 | 2018-06-28 | A kind of igniter of coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008593.6U CN208418702U (en) | 2018-06-28 | 2018-06-28 | A kind of igniter of coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208418702U true CN208418702U (en) | 2019-01-22 |
Family
ID=65107358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821008593.6U Expired - Fee Related CN208418702U (en) | 2018-06-28 | 2018-06-28 | A kind of igniter of coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208418702U (en) |
-
2018
- 2018-06-28 CN CN201821008593.6U patent/CN208418702U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20190628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |