CN105090946A - Pulverized coal combustor - Google Patents
Pulverized coal combustor Download PDFInfo
- Publication number
- CN105090946A CN105090946A CN201510474866.0A CN201510474866A CN105090946A CN 105090946 A CN105090946 A CN 105090946A CN 201510474866 A CN201510474866 A CN 201510474866A CN 105090946 A CN105090946 A CN 105090946A
- Authority
- CN
- China
- Prior art keywords
- heavy oil
- primary air
- air duct
- combustion chamber
- secondary air
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
- F23D1/02—Vortex burners, e.g. for cyclone-type combustion apparatus
Abstract
The invention discloses a pulverized coal combustor which comprises a shell. A secondary air duct and a primary air duct are formed inside the shell; a combustion chamber is formed at the front end of the combustor through the secondary air duct; a telescopic heavy oil gun is arranged inside the primary air duct, a heavy oil electronic igniting rod is arranged on the outer wall of the primary air duct, and the heavy oil gun and the front end of the heavy oil electronic igniting rod are arranged inside the combustion chamber. Compared with the prior art, the pulverized coal combustor has the advantages that the cylinder wall of the combustion chamber is heated by igniting a heavy oil combustion nozzle; due to the fact that the space inside the cylinder is relatively small, the wall temperature increases rapidly, then pulverized coal flow is put into the cylinder, a proper confined jet is formed inside a pipe, the flow and an incendive oil torch interfere and mix with each other, meanwhile, under the effect of radiative heat transfer of the high-temperature cylinder wall, the pulverized coal is ignited and burned, the burning high-temperature flame flows back to the portion close to the primary air duct reversely and is drawn into primary air, and therefore the stability and combustion intensity of the flame are increased.
Description
Technical field
The invention belongs to field of mechanical technique, be specifically related to a kind of coal burner.
Background technology
Rotary kiln low-temperature bake space temperature is lower, and can not ensure that fine coal can burn steadily, combustion intensity is not enough, and coal dust is piled up and easily caused the wasting of resources, causes line clogging, and impact is produced.
Summary of the invention
The object of the invention is, for existing problem, to provide a kind of coal burner.
The present invention is achieved by the following technical solutions: a kind of coal burner, comprise housing, housing is provided with tertiary air import, be provided with secondary air channel and primary air piping in housing, be provided with secondary air inlet in secondary air channel tube wall upper end, secondary air channel is in formation combustion chamber, burner front end, primary air piping end is provided with First air import, in primary air piping, be provided with scalable heavy oil rifle, primary air piping outer wall is provided with heavy oil electronic ignition lever, and heavy oil rifle and heavy oil electronic ignition lever front end are located in combustion chamber.
As further improvement of these options, described primary air piping end is bent metal hose.
As further improvement of these options, described housing and secondary air channel front end are structure for amplifying, and pipeline section is long-pending to be increased gradually, until tube wall place, combustion chamber becomes straight-tube shape.
As further improvement of these options, described secondary air channel front end is provided with cyclone.
The present invention has the following advantages compared to existing technology: by lighting oil-fired burner, heating flame room barrel, because in cylinder, space is less, wall temperature raises fast, then breeze airflow is dropped into, suitable restricted jet is formed in shop, this strand of air-flow mixes with the mutual disturbance of incendive oily torch, simultaneously under the effect of high temperature barrel radiant heat transfer, coal powder ignition is burnt, the thermal-flame reverse reflux of burning, near primary air piping, is involved in First air, thus adds stability and the combustion intensity of flame.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As in Fig. 1, a kind of coal burner, comprise housing 1, housing is provided with tertiary air import 4, is provided with secondary air channel 2 and primary air piping 3 in housing, secondary air inlet 5 is provided with in secondary air channel 2 tube wall upper end, secondary air channel 2 is in formation combustion chamber, burner front end 9, and primary air piping 3 end is provided with First air import 6, is provided with scalable heavy oil rifle 7 in primary air piping 3, primary air piping 3 outer wall is provided with heavy oil electronic ignition lever 8, and heavy oil rifle 7 and heavy oil electronic ignition lever 8 front end are located in combustion chamber 9.
Especially, described primary air piping 6 end is bent metal hose.
Especially, described housing 1 is structure for amplifying with secondary air channel 2 front end, and pipeline section is long-pending to be increased gradually, until tube wall place, combustion chamber becomes straight-tube shape.
Especially, described secondary air channel 2 front end is provided with cyclone 10.
Heavy oil rifle 7 is lighted by heavy oil electronic ignition lever 8, heating flame room 9 barrel, because in cylinder, space is less, wall temperature raises fast, then breeze airflow is dropped into, in shop, form suitable restricted jet, this strand of air-flow mixes with the mutual disturbance of incendive oily torch, simultaneously under the effect of high temperature barrel radiant heat transfer, coal powder ignition is burnt, the thermal-flame reverse reflux of burning, near primary air piping, is involved in First air, thus adds stability and the combustion intensity of flame.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a coal burner, it is characterized in that, comprise housing, housing is provided with tertiary air import, is provided with secondary air channel and primary air piping in housing, secondary air inlet is provided with in secondary air channel tube wall upper end, secondary air channel is in formation combustion chamber, burner front end, and primary air piping end is provided with First air import, is provided with scalable heavy oil rifle in primary air piping, primary air piping outer wall is provided with heavy oil electronic ignition lever, and heavy oil rifle and heavy oil electronic ignition lever front end are located in combustion chamber.
2. a kind of coal burner as claimed in claim 1, it is characterized in that, described primary air piping end is bent metal hose.
3. a kind of coal burner as claimed in claim 1, it is characterized in that, described housing and secondary air channel front end are structure for amplifying, and pipeline section is long-pending to be increased gradually, until tube wall place, combustion chamber becomes straight-tube shape.
4. a kind of coal burner as claimed in claim 1, it is characterized in that, described secondary air channel front end is provided with cyclone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474866.0A CN105090946A (en) | 2015-08-06 | 2015-08-06 | Pulverized coal combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474866.0A CN105090946A (en) | 2015-08-06 | 2015-08-06 | Pulverized coal combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105090946A true CN105090946A (en) | 2015-11-25 |
Family
ID=54571948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510474866.0A Pending CN105090946A (en) | 2015-08-06 | 2015-08-06 | Pulverized coal combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650625A (en) * | 2016-02-01 | 2016-06-08 | 哈尔滨红光锅炉总厂有限责任公司 | Efficient pulverized coal-fired industrial boiler |
-
2015
- 2015-08-06 CN CN201510474866.0A patent/CN105090946A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650625A (en) * | 2016-02-01 | 2016-06-08 | 哈尔滨红光锅炉总厂有限责任公司 | Efficient pulverized coal-fired industrial boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |