CN208418712U - A kind of bluff body of new coal powder burner - Google Patents
A kind of bluff body of new coal powder burner Download PDFInfo
- Publication number
- CN208418712U CN208418712U CN201821008668.0U CN201821008668U CN208418712U CN 208418712 U CN208418712 U CN 208418712U CN 201821008668 U CN201821008668 U CN 201821008668U CN 208418712 U CN208418712 U CN 208418712U
- Authority
- CN
- China
- Prior art keywords
- bluff body
- diameter face
- hole
- face
- smaller diameter
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of bluff bodies of new coal powder burner, it is fixedly installed in First air channel at first nozzle center, the bluff body is laterally disposed rotary table, including smaller diameter face and major diameter face, and the breeze airflow in First air channel flows to major diameter face through bluff body smaller diameter face；The bluff body is additionally provided with through-hole, and the through-hole is gradually reduced through the smaller diameter face and major diameter face, the through-hole diameter of bluff body from the smaller diameter face of bluff body to major diameter face.Through-hole diameter in the utility model constantly reduces, and reduces contact of the coal dust with air, controls the rate of coal dust firing, avoids coal dust oxygen-excess combustion, can be effectively reduced the yield of pollutant nitrogen oxides, reaches the requirement of environmental protection.
Description
Technical field
The utility model relates to heat energy technology fields, more particularly to a kind of bluff body of new coal powder 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 bluff body of new coal powder burner.
The technical scheme adopted by the utility model is a kind of bluff body of new coal powder burner, is fixedly installed in primary
In wind channel at first nozzle center, the bluff body is laterally disposed rotary table, including smaller diameter face and major diameter face, First air
Breeze airflow in channel flows to major diameter face through bluff body smaller diameter face；The bluff body is additionally provided with through-hole, and the through-hole is through blunt
The smaller diameter face of body and major diameter face, the through-hole diameter are gradually reduced from the smaller diameter face of bluff body to major diameter face.
Further, the diameter of the through-hole of major diameter face side is not less than 540mm.
Further, the maximum gauge of the through-hole is slightly less than bluff body smaller diameter face diameter.
Further, it is not less than 25mm in the through-hole axial cross section at thickness minimum.
Compared with prior art, the utility model has the beneficial effects that
1, through-hole diameter constantly reduces, and reduces contact of the coal dust with air, controls the rate of coal dust firing, avoids coal
Powder oxygen-excess combustion can effectively reduce the yield of a large amount of prompt NOs, reach the requirement of environmental protection.
2, it is not less than 25mm in through-hole cross section at thickness minimum.The excessive loss for avoiding bluff body extends making for bluff body
Use the service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the bluff body of new coal powder burner of the present invention；
Fig. 2 is the right view of Fig. 1.
Wherein: 1- First air channel, 2- bluff body, 21- smaller diameter face, 22- major diameter face, 23- through-hole.
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 bluff body of new coal powder burner, is fixedly installed in First air channel 1 and once sprays
At mouthful center, the bluff body 2 is laterally disposed rotary table, including smaller diameter face 21 and major diameter face 22, in First air channel 1
Breeze airflow flows to major diameter face 22 through 2 smaller diameter face 21 of bluff body；The bluff body 2 is additionally provided with through-hole 23, and the through-hole 23 runs through
The smaller diameter face 21 of bluff body 2 and major diameter face 22,23 diameter of through-hole from the smaller diameter face 21 of bluff body 2 to major diameter face 22 by
It is tapered small.
In the above-described embodiments, when coal burner works, when the breeze airflow in First air channel 1 flows through bluff body 2,
2 major diameter face of bluff body, 22 side generates negative pressuren zone, forms high temperature gases recirculating area, so that breeze airflow kindling is in advance and stable
Burning；2 through-hole of bluff body, 23 diameter is gradually reduced from the smaller diameter face 21 of bluff body 2 to major diameter face 22, so that coal dust and oxygen
Contact surface becomes smaller, and heating and firing coal-dust airflow reduce the ignition temperature of coal dust, delayed the reaction time, reduce Quick-type
The generation of nitrogen oxides, to reach energy-saving and environment-friendly purpose.
In the above-described embodiments, the diameter of the through-hole 23 of 22 side of major diameter face is not less than 540mm, and through-hole 23
Maximum gauge be slightly less than 2 smaller diameter face of bluff body, 21 diameter, reasonable size design can be effectively combustion-supporting and makes coal dust
Peroxide, high-temp combustion generate a large amount of polluters；It is not less than 25mm in the axial cross section of through-hole 23 at minimum, ensure that blunt
Body 2 has certain service life, reduces production cost.
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 (4)
1. a kind of bluff body of new coal powder burner, is fixedly installed in First air channel at first nozzle center, feature exists
In: the bluff body is laterally disposed rotary table, including smaller diameter face and major diameter face, and the breeze airflow in First air channel is through blunt
Body smaller diameter face flows to major diameter face；The bluff body is additionally provided with through-hole, and the through-hole runs through the smaller diameter face and major diameter of bluff body
Face, the through-hole diameter are gradually reduced from the smaller diameter face of bluff body to major diameter face.
2. the bluff body of new coal powder burner according to claim 1, it is characterised in that: major diameter face side leads to
The diameter in hole is not less than 540mm.
3. the bluff body of new coal powder burner according to claim 1, it is characterised in that: the maximum gauge of the through-hole omits
Less than bluff body smaller diameter face diameter.
4. the bluff body of new coal powder burner according to claim 1, it is characterised in that: in the through-hole axial cross section
It is not less than 25mm at thickness minimum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008668.0U CN208418712U (en) | 2018-06-28 | 2018-06-28 | A kind of bluff body of new coal powder burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008668.0U CN208418712U (en) | 2018-06-28 | 2018-06-28 | A kind of bluff body of new coal powder burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208418712U true CN208418712U (en) | 2019-01-22 |
Family
ID=65106537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821008668.0U Active CN208418712U (en) | 2018-06-28 | 2018-06-28 | A kind of bluff body of new coal powder burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208418712U (en) |
-
2018
- 2018-06-28 CN CN201821008668.0U patent/CN208418712U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203869032U (en) | Reflection rotational flow porous medium burner used for high-temperature biomass gas | |
| CN201526966U (en) | Special burner used for circular internal combustion type blast-furnace gas power generation boiler and provided with cone fluidic device | |
| CN103075729B (en) | Cement rotary kiln coal powder burner with oxygen-enriched micro-oil ignition device | |
| CN208418712U (en) | A kind of bluff body of new coal powder burner | |
| CN205332204U (en) | Energy -efficient burning furnace that fires | |
| CN203385194U (en) | Porous medium smoke hot blast stove capable of combusting low-grade fuel | |
| CN103277792A (en) | Plasma pulverized coal burner | |
| CN108592018A (en) | A kind of bluff body of new coal powder burner | |
| CN202938289U (en) | Fuel-saving ignition device of circulating fluidized bed boiler | |
| CN202993264U (en) | Electronic ignition gun of low calorific value gas burner | |
| CN208418702U (en) | A kind of igniter of coal burner | |
| CN103574683A (en) | Novel interior ignition energy-saving furnace end with wavy wind-prevention support with holes | |
| CN204756926U (en) | High -efficient heat accumulation formula co -combustion ware | |
| CN203605226U (en) | Flat flame burner for thermal treatment furnace | |
| CN203298293U (en) | Plasma heavy oil burner | |
| CN202195483U (en) | Novel full-automatic premix burner | |
| CN201706495U (en) | Gas furnace combustion supporting device | |
| CN105716076A (en) | Electrolysis oxy-hydrogen gas pulverized coal igniting burner | |
| CN211650221U (en) | Low-nitrogen energy-saving burner of carbon roasting furnace | |
| CN112856408B (en) | W-type radiant tube burner with coal gas grading and premixed combustion | |
| CN203273951U (en) | Portable stove | |
| CN203605227U (en) | Flat flame burner used for heating furnace | |
| CN203757708U (en) | Coal bed gas burner | |
| CN203605215U (en) | Stamping combustion chamber | |
| CN206247626U (en) | Hot-blast stove heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |