CN206504327U - A kind of burner - Google Patents
A kind of burner Download PDFInfo
- Publication number
- CN206504327U CN206504327U CN201720162456.7U CN201720162456U CN206504327U CN 206504327 U CN206504327 U CN 206504327U CN 201720162456 U CN201720162456 U CN 201720162456U CN 206504327 U CN206504327 U CN 206504327U
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- China
- Prior art keywords
- air channel
- air
- coal dust
- burner
- outer shaft
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Abstract
A kind of burner, includes the air-supply passage and nozzle of connection, and air-supply passage includes five passages, fuel injection passage, interior air channel I, interior air channel II, coal dust air channel and outer air duct are followed successively by from the inside to surface；Nozzle includes five passages, it is followed successively by from the inside to surface, jet, vortex air channel, swirl air duct, coal dust air channel, outer shaft stream air channel, five passages are connected with jet, interior air channel I, interior air channel II, coal dust air channel, outer air duct respectively according to order from the inside to surface.Compared to the prior art, the beneficial effects of the utility model：This burner not only changes the anglec of rotation for spraying air-flow, and change the flow for spraying air-flow, the shape jetted out flames can preferably be adjusted, the especially direction of rotation in outer shaft stream air channel and the direction of rotation of swirl air duct is opposite, so that the two turbulization between coal dust so that the random powder of coal dust layer can burn more abundant.
Description
Technical field
The utility model is related to a kind of burner.
Background technology
In traditional cement production process, mostly using simple single air channel, double air-channel coal powder combustors, these kinds
How black burner duration and degree of heating be long, and efficiency of combustion is low；Develop the eighties, the nineties triple channel, four-way coal burner in succession afterwards,
But still have that air channel structure design is not sufficiently stable its air feed, flame profile temperature is difficult to control, it is impossible to real-time basis
The change of production environment and process conditions is adjusted, it is impossible to adapt to the problem of coal quality is uneven.Telescopic joint is mainly used in mending
The dilatation that pipeline is produced by temperature change is repaid, pipeline is also used for because of the length compensation of the needs such as mounting and adjusting, patent
CN101566342A discloses a kind of gas burner of furnace, has used wavy metal to stretch in the connection of burner and blower fan
Section, is in order to avoid nozzle is given a shock.
Utility model content
In order to solve the technical problem that existing burner nozzle is present, the utility model provides a kind of flame profile adjustment essence
Really, the sufficient burner nozzle of coal dust firing.
The technical solution of the utility model is：
A kind of burner, includes the air-supply passage and nozzle of connection, and air-supply passage includes five passages, from the inside to surface successively
For fuel injection passage, interior air channel I, interior air channel II, coal dust air channel and outer air duct；Nozzle includes five passages, is followed successively by from the inside to surface,
Jet, vortex air channel, swirl air duct, coal dust air channel, outer shaft stream air channel, five passages are distinguished according to order from the inside to surface
Connected with jet, interior air channel I, interior air channel II, coal dust air channel, outer air duct；Nozzle is followed successively by five layers of loop pipe from the inside to surface, point
It is not：It is jet, spiral vortex in spiral vortex device, outer spin axis, coal dust air channel inwall, outer shaft, outer wall, spiral vortex device
Space between device, outer spin axis is vortex air channel, and the space between outer spin axis, coal dust air channel inwall is swirl air duct, coal dust wind
Space between road inwall, outer shaft is coal dust air channel, and the space between outer shaft, outer wall is outer shaft stream air channel；Spiral vortex device
Rear end is column, and multiple helical raiseds be arrangeding in parallel are fixed in its side, and the front end of spiral vortex device is pre-large post-small circle
Mesa-shaped, vortex air channel is also classified into two parts：The helical duct that rear portion is formed for adjacent spirals between raised, front portion is round platform
The passage of shape.
The outer surface of the outer spin axis is two cylindrical faces, and the diameter of the cylindrical face of rear end is less than the straight of the cylindrical face of front end
Footpath, the space between outward turning shaft rear end and coal dust air channel inwall connects interior air channel II, and the appearance EDS maps of outer spin axis front end are multiple
Helicla flute, when outer spin axis front end and the cooperation of coal dust air channel inwall, the inner surface of coal dust air channel inwall is covered on helicla flute, this
When multiple helicla flutes constitute swirl air ducts, as the helicla flute extends to nozzle direction, its area of section is gradually reduced；The section
Be shaped as semicircle, the deferent of circle is distributed on the outer surface of outer spin axis front end where the cross section of helicla flute.
The wind direction angle in the swirl air duct exit is 30-45 °.
The outer surface of the outer shaft is two cylindrical faces, and the diameter of the cylindrical face of rear end is less than the straight of the cylindrical face of front end
Footpath, the space between outer shaft rear end and outer wall connects outer air duct, the multiple taper grooves of appearance EDS maps of outer shaft front end, when before outer shaft
When end coordinates with outer wall, the inner surface of outer wall is covered on taper groove, and now multiple taper grooves constitute outer shaft stream air channel, with cone
Shape groove extends to nozzle direction, and its area of section is gradually reduced；The cross section of taper groove is circle where semicircle, its cross section
Deferent is the outer surface straight line for being distributed in outer shaft front end.
The vortex air channel is identical with the direction of rotation of swirl air duct.
The vortex air channel is opposite with the direction of rotation of outer air duct.
The interior air channel I, interior air channel II and outer air duct are respectively communicated with the first winding pipe, the second winding pipe, the 3rd entered
Wind branch pipe, the first winding pipe, the second winding pipe, the 3rd winding pipe all connect air intake house steward.
First winding pipe, the second winding pipe, the 3rd winding pipe are designed with valve.
The air-supply passage and nozzle are connected through a screw thread, and are specially：Air-supply passage is also five-layer structure, and it is corresponded to respectively
Spiral vortex device, outer spin axis, coal dust air channel inwall, outer shaft, the outer wall five-layer structure of nozzle, each group of counter structure junction
Fixed for threaded connection.
Between the inside and outside wall in the interior air channel I of the air-supply passage, between the inside and outside wall in interior air channel II, the inside and outside wall of outer air duct
Between be respectively equipped with telescopic joint.
Compared to the prior art, the beneficial effects of the utility model：This burner not only changes the anglec of rotation for spraying air-flow
Degree, and change the flow for spraying air-flow, it can preferably adjust the rotation side of the shape jetted out flames, especially outer shaft stream air channel
To opposite with the direction of rotation of swirl air duct so that the two turbulization between coal dust so that the random powder of coal dust layer can burn
It is more abundant.
Brief description of the drawings
Fig. 1 is the schematic diagram of burner.
Fig. 2 is Fig. 1 schematic top plan view.
Fig. 3 is the schematic diagram of burner.
Fig. 4 is Fig. 3 left view schematic diagram.
Fig. 5 is Fig. 3 diagrammatic cross-section.
Fig. 6 is the schematic diagram on the head of outer spin axis（A is stereogram, and b is front view, and c is top view, and d is profile）.
Fig. 7 is the schematic diagram of outer shaft wind groove（A is stereogram, and b is front view, and c is top view, and d is profile）.
Fig. 8 is the schematic diagram of middle spiral vortex device（A is stereogram, and b is profile, and c is front view）.
Fig. 9 is the enlarged diagram of Fig. 5 nozzle passages.
Embodiment
As shown in Fig. 1-2, a kind of burner includes the air-supply passage 89 and nozzle 80 of connection.
Air-supply passage 89 includes five passages, be followed successively by from the inside to surface fuel injection passage 91, interior air channel I 92, interior air channel II 93,
Coal dust air channel 94 and outer air duct 95.
Nozzle 80 includes five passages, is followed successively by from the inside to surface, jet 11, vortex air channel 12, swirl air duct 13, coal dust
Air channel 14, outer shaft stream air channel 15, five passages according to order from the inside to surface respectively with jet 91, interior air channel I 92, interior wind
Road II 93, coal dust air channel 94, outer air duct 95 are connected.
Nozzle 80 is followed successively by five layers of loop pipe from the inside to surface, is respectively：Spiral vortex device 20, outer spin axis 30, coal dust air channel
Inwall 40, outer shaft 50, outer wall 60.It is jet 11, the space between spiral vortex device 20, outer spin axis 30 in spiral vortex device 20
For vortex air channel 12, space between outer spin axis 30, coal dust air channel inwall 40 is swirl air duct 13, coal dust air channel inwall 40, outer
Space between axle 50 is coal dust air channel 14, and the space between outer shaft 50, outer wall 60 is outer shaft stream air channel 15.
Such as Fig. 8, Fig. 9, the rear end of spiral vortex device 20（Referring to reference 21）For column, its side is fixed multiple parallel
The helical raised 211 of setting, the front end of spiral vortex device 20（Referring to reference 22）To be pre-large post-small round table-like or
Prism-frustum-shaped.Accordingly, vortex air channel 12 is also classified into two parts：Rear portion is the spiral that is formed between adjacent spirals projection 211
Passage（Referring to reference 121）, front portion is circle（Rib）The passage of mesa-shaped.The benefit so designed is：Rear portion can be by advection wind
The mixing ratio of Whirl deposite tank, increase coal stratification of wind and air layer is changed to, increases the combusted proportion of coal stratification of wind；Front portion can pass through spiral vortex
Moved axially between device 20, outer spin axis 30, have adjusted the size of size at vortex ducting outlet（The external diameter inconvenience in exit, it is interior
Footpath can change with axial movement, thus have adjusted the size of size at vortex ducting outlet）, also with regard to air output can be adjusted.
Such as Fig. 6, Fig. 9, the outer surface of outer spin axis 30 is two cylindrical faces, and the diameter of the cylindrical face of rear end is less than the post of front end
The diameter in shape face, the space between the outer rear end of spin axis 30 and coal dust air channel inwall 40 connects interior air channel II 93.The outer front end of spin axis 30
The multiple helicla flutes of appearance EDS maps, when the outer front end of spin axis 30 and coal dust air channel inwall 40 coordinate, coal dust air channel inwall 40
Inner surface is covered on helicla flute, and now multiple helicla flutes constitute swirl air duct 13.The axis of the helicla flute is distributed in outer spin axis
On the outer surface of 30 front ends, as the helicla flute extends to nozzle direction, its area of section is gradually reduced.The section is shaped as
The deferent of circle is distributed on the outer surface of the outer front end of spin axis 30 where semicircle, the cross section of helicla flute.So design
Benefit is：The power that the helicla flute can inwardly be drawn in coal stratification of wind increase, extends the spray penetration of coal stratification of wind, adds coal stratification of wind
With the blending space of air；Meanwhile, when being moved axially between outer spin axis 30 and coal dust air channel inwall 40, the inwall in coal dust air channel
40 ends（It is exactly exit）The area of section of helicla flute follow adjustment, thus have adjusted the exit size of swirl air duct 13
Size and exit wind direction angle（It is exactly the tangential direction and the angle of the outer axial direction of spin axis 30 of the helicla flute）, have adjusted out
Air quantity.
In order to more preferably control flame, the wind direction angle in the exit of swirl air duct 13（Be exactly the helicla flute tangential direction with
The angle of the outer axial direction of spin axis 30）For 30-45 °.
Claims (10)
1. a kind of burner, includes the air-supply passage of connection（89）And nozzle（80）, it is characterised in that：
Air-supply passage（89）Including five passages, fuel injection passage is followed successively by from the inside to surface（91）, interior air channel I（92）, interior air channel II
（93）, coal dust air channel（94）With outer air duct（95）；
Nozzle（80）Including five passages, it is followed successively by from the inside to surface, jet（11）, vortex air channel（12）, swirl air duct（13）、
Coal dust air channel（14）, outer shaft stream air channel（15）, five passages according to order from the inside to surface respectively with jet（11）, interior wind
Road I（92）, interior air channel II（93）, coal dust air channel（94）, outer air duct（95）Connection；
Nozzle（80）Five layers of loop pipe are followed successively by from the inside to surface, are respectively：Spiral vortex device（20）, outer spin axis（30）, coal dust wind
Road inwall（40）, outer shaft（50）, outer wall（60）, spiral vortex device（20）Interior is jet（11）, spiral vortex device（20）, outward turning
Axle（30）Between space for vortex air channel（12）, outer spin axis（30）, coal dust air channel inwall（40）Between space be Whirl deposite tank
Road（13）, coal dust air channel inwall（40）, outer shaft（50）Between space be coal dust air channel（14）, outer shaft（50）, outer wall（60）It
Between space be outer shaft stream air channel（15）；
Spiral vortex device（20）Rear end be column, multiple helical raiseds be arrangeding in parallel are fixed in its side（211）, spiral vortex
Flow device（20）Front end be pre-large post-small round table-like, be vortexed air channel（12）It is also classified into two parts：Rear portion is adjacent spirals
It is raised（211）Between the helical duct that is formed, front portion is round table-like passage.
2. burner as claimed in claim 1, it is characterised in that：The outer spin axis（30）Outer surface be two cylindrical faces,
The diameter of the cylindrical face of rear end is less than the diameter of the cylindrical face of front end, outer spin axis（30）Rear end and coal dust air channel inwall（40）Between
Space connection in air channel II（93）, outer spin axis（30）The multiple helicla flutes of appearance EDS maps of front end, when outer spin axis（30）Front end
With coal dust air channel inwall（40）During cooperation, coal dust air channel inwall（40）Inner surface cover on helicla flute, now multiple spirals
Groove constitutes swirl air duct（13）, as the helicla flute extends to nozzle direction, its area of section is gradually reduced；The shape in the section
For semicircle, the deferent of circle is distributed in outer spin axis where the cross section of helicla flute（30）On the outer surface of front end.
3. burner as claimed in claim 2, it is characterised in that：The swirl air duct（13）The wind direction angle in exit is
30-45°。
4. burner as claimed in claim 1, it is characterised in that：The outer shaft（50）Outer surface be two cylindrical faces, after
The diameter of the cylindrical face at end is less than the diameter of the cylindrical face of front end, outer shaft（50）Rear end and outer wall（60）Between space connection it is outer
Air channel（95）, outer shaft（50）The multiple taper grooves of appearance EDS maps of front end（51）, work as outer shaft（50）Front end and outer wall（60）Coordinate
When, outer wall（60）Inner surface cover in taper groove（51）Above, now multiple taper grooves（51）Constitute outer shaft stream air channel（15）, with
Taper groove（51）Extend to nozzle direction, its area of section is gradually reduced；Taper groove（51）Cross section be semicircle, it is horizontal
The deferent of circle where section is to be distributed in outer shaft（50）The outer surface straight line of front end.
5. burner as claimed in claim 2, it is characterised in that：The vortex air channel（12）With swirl air duct（13）Rotation
Direction is identical.
6. burner as claimed in claim 5, it is characterised in that：The vortex air channel（12）With outer air duct（95）Rotation side
To opposite.
7. burner as claimed in claim 1, it is characterised in that：The interior air channel I（92）, interior air channel II（93）With outer air duct
（95）It is respectively communicated with the first winding pipe（82）, the second winding pipe（83）, the 3rd winding pipe（85）, the first winding pipe
（82）, the second winding pipe（83）, the 3rd winding pipe（85）All connect air intake house steward（87）.
8. burner as claimed in claim 7, it is characterised in that：First winding pipe（82）, the second winding pipe
（83）, the 3rd winding pipe（85）It is designed with valve.
9. burner as claimed in claim 1, it is characterised in that：The air-supply passage（89）And nozzle（80）Connected by screw thread
Connect, be specially：Air-supply passage（89）Also it is five-layer structure, it distinguishes corresponding nozzle（80）Spiral vortex device（20）, outer spin axis
（30）, coal dust air channel inwall（40）, outer shaft（50）, outer wall（60）Five-layer structure, each group of counter structure junction is screw thread
It is connected.
10. burner as claimed in claim 9, it is characterised in that：The air-supply passage（89）Interior air channel（Ⅰ92）It is inside and outside
Between wall, interior air channel II（93）Inside and outside wall between, outer air duct（95）Inside and outside wall between be respectively equipped with telescopic joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720162456.7U CN206504327U (en) | 2017-02-23 | 2017-02-23 | A kind of burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720162456.7U CN206504327U (en) | 2017-02-23 | 2017-02-23 | A kind of burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206504327U true CN206504327U (en) | 2017-09-19 |
Family
ID=59840289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720162456.7U Active CN206504327U (en) | 2017-02-23 | 2017-02-23 | A kind of burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206504327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885237A (en) * | 2017-02-23 | 2017-06-23 | 河南汇金智能装备有限公司 | Burner |
-
2017
- 2017-02-23 CN CN201720162456.7U patent/CN206504327U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885237A (en) * | 2017-02-23 | 2017-06-23 | 河南汇金智能装备有限公司 | Burner |
| CN106885237B (en) * | 2017-02-23 | 2023-09-22 | 河南汇金智能装备有限公司 | Burner with a burner body |
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