CN108167825A - A kind of DC burner for low volatile carbon-based fuel - Google Patents
A kind of DC burner for low volatile carbon-based fuel Download PDFInfo
- Publication number
- CN108167825A CN108167825A CN201711431240.7A CN201711431240A CN108167825A CN 108167825 A CN108167825 A CN 108167825A CN 201711431240 A CN201711431240 A CN 201711431240A CN 108167825 A CN108167825 A CN 108167825A
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- CN
- China
- Prior art keywords
- wind pipe
- pipeline
- wind
- burner
- square
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
Abstract
A kind of DC burner for low volatile carbon-based fuel of the invention, belong to technical field of combustion equipment, including square and round joint, a wind pipe, dense-and-weak separator, pure oxygen gas flow pipeline, wind snout, ceramic scuff-resistant coating elbow pipeline and straight tube pipeline, square and round joint one end is connected with elbow pipeline or is connected with straight tube pipeline, the square and round joint other end is connected with a wind pipe one end, the a wind pipe other end is connected with a wind snout, pure oxygen gas flow pipeline is provided in a wind pipe, pure oxygen gas flow pipeline is connected with a wind pipe, a wind pipe inner wall is equipped with dense-and-weak separator, square and round joint and a wind pipe inner wall and the ceramic scuff-resistant coating of setting on the outside of dense-and-weak separator.The connection in the present invention and solid-fuel conduit road can be that straight tube connection or elbow connect, and reduce the complexity of equipment, applied widely, compact-sized, convenient for the installation, dismounting and operation and maintenance of burner.
Description
Technical field
The present invention relates to technical field of combustion equipment more particularly to a kind of straight flow combustions for low volatile carbon-based fuel
Device.
Background technology
Coal is the Dominant Mineral Resources of China, and coal resources account for more than 90% national fossil energy total amount, in Chinese energy
There is very important status in source structure.The dependence on foreign countries for oil and ever-increasing natural gas increased year by year in face of China
Demand, the endowment of resources feature of China's " rich coal, oil starvation, few gas " fundamentally just determine that China also needs to more efficient science
Utilize coal resources.At present, the cascade utilization of coal is the mainstream of China's energy conversion Land use systems, is to be pyrolyzed, gasify
Tap, low volatile carbon-based fuel is to realize that coal resourcesization cleaning is high as high-grade clean fuel combustion power generation after pyrolysis
Imitate an important technology path of cascade utilization.
For existing combustion technology and combustion equipment, there is the difficult base low with efficiency of combustion that catch fire in combustion process
Eigen, using conventional method solve the problems, such as to catch fire difficult and after-flame difficulty while can lead to problems such as NOx emission high again.With Yulin
For semi-coke, semi-coke catch fire and after-flame performance is better than domestic typical meager coal and anthracite, but slagging index far above meager coal and
Anthracite, volatile matter are far below typical bituminous coal, are approached with anthracite, utilize the existing anthracite combustion technology W types flame pot in China
Stove burns, and there are still slagging risks, it is often more important that W types flame boiler can not meet China's Air Pollutant Emission national standard
NOx reaches the requirement of 50mg/Nm3, can not realize cleaning burning.Therefore, it is badly in need of exploitation and is suitable for low volatile carbon-based fuel height
The DC burner of clean utilization is imitated as burner.
Invention content
The present invention overcomes above-mentioned the deficiencies in the prior art, provide a kind of direct current for low volatile carbon-based fuel and fire
Burner.The connection in the present invention and solid-fuel conduit road can be that straight tube connection or elbow connect, can be according to different companies
The mode of connecing selects different light-dark separation devices, reduces the complexity of equipment, applied widely, compact-sized, convenient for combustion
Installation, dismounting and the operation and maintenance of burner.
Inventive technique scheme：
A kind of DC burner for low volatile carbon-based fuel, including square and round joint, a wind pipe, air-coal separating
Device, pure oxygen gas flow pipeline, a wind snout, elbow pipeline and straight tube pipeline；
Described square and round joint one end is connected with the elbow pipeline or is connected with the straight tube pipeline, the square and round joint
The other end is connected with described a wind pipe one end, and the other end of a wind pipe is connected with a wind snout, institute
It states and the pure oxygen gas flow pipeline is provided in a wind pipe, the pure oxygen gas flow pipeline is connected with a wind pipe, institute
It states a wind pipe inner wall and the dense-and-weak separator is installed.
Further：Connection mode between the square and round joint, a wind pipe and a wind snout is
Welding or flanged joint or monoblock cast.
Further：The steady combustion reamer of wind snout upper and lower end outer setting.
Further：Pottery is provided on the outside of the square and round joint and a wind pipe inner wall and the dense-and-weak separator
Porcelain scuff-resistant coating.
Further：Wind snout is made of antiwear heat resisting cast steel, the square and round joint, a wind pipe and
Dense-and-weak separator is made of abrasion resistant cast steel.
Further：The center line of the pure oxygen gas flow pipeline forms acute angle, angle 30- with a wind pipe center line
45°
The present invention has the advantages that the prior art：
The dense-and-weak separator of the present invention makes fuel gas stream be divided into the dense fuel gas stream of stock and the lower light fuel gas stream of stock, and upper stock is dense
Fuel gas stream coordinates pure oxygen gas flow pipeline, reaches " oxygen-enriched " state and burns.The experimental results show appropriate " oxygen-enriched "
Fuel ignition temperature can be reduced under (25%-32%), ignition time is reduced, accelerate burning velocity and reduces the discharge of NOx；One
The reamer of secondary wind snout outlet upper and lower end setting, forms recirculating zone in burner outlet, increases low volatile carbon-based fuel
Stability；The connection in the present invention and solid-fuel conduit road can be that straight tube connection or elbow connect, can be according to different
Connection mode selects different light-dark separation devices, reduces the complexity of equipment, has high-efficiency cleaning, applied widely,
It is compact-sized, convenient for burner installation, dismounting and operation and maintenance the advantages that.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of the embodiment of the present invention 1；
Fig. 3 is the intention of the structure of the embodiment of the present invention 2；
1- square and round joint in figure；2- a wind pipes；3- dense-and-weak separators；4- pure oxygen gas flow pipelines；5- First airs spray
Mouthful；；6- elbow pipelines；7- straight tube pipelines.
Specific embodiment
Below with reference to attached drawing, the present invention is described in detail.
Embodiment 1：In fig. 2, a kind of DC burner for low volatile carbon-based fuel, including square and round joint 1, one
Secondary wind pipeline 2, dense-and-weak separator 3,4, wind snouts 5 of pure oxygen gas flow pipeline, elbow pipeline 6 and straight tube pipeline 7；
Described 1 one end of square and round joint is connected with the elbow pipeline 6, the other end of 1 connector of the circumference with it is described primary
2 one end of wind pipeline is connected, and the other end of a wind pipe 2 is connected with a wind snout 5, a wind pipe 2
On be provided with the pure oxygen gas flow pipeline 4, the pure oxygen gas flow pipeline 4 is connected with a wind pipe 2, the primary air piping
2 inner wall of road is equipped with the dense-and-weak separator 3.
Specifically, the connection mode between the square and round joint 1, a wind pipe 2 and a wind snout 5 is
Welding or flanged joint or monoblock cast.
Specifically, the steady combustion reamer of 5 upper and lower end outer of wind snout setting.
Specifically, the square and round joint 1 is provided with 2 inner wall of a wind pipe and 3 outside of the dense-and-weak separator
Ceramic scuff-resistant coating.
Specifically, a wind snout 5 is made of antiwear heat resisting cast steel, the square and round joint 1, a wind pipe 2
It is made with dense-and-weak separator 3 of abrasion resistant cast steel.
Specifically, the center line of the pure oxygen gas flow pipeline 4 forms acute angle, angle 30- with 2 center line of a wind pipe
45°
It is the dense of top that solid fuel air-flow is sent into the dense-and-weak separator 3 by solid fuels flow point by elbow pipeline 7
Fuel gas stream and the light fuel gas stream of lower part, dense stock fuel gas stream coordinate the oxygen in pure oxygen gas flow pipeline 4 to be sprayed by First air
Mouth 5 is sent into burner hearths.
Embodiment 2：In figure 3, a kind of DC burner for low volatile carbon-based fuel, including square and round joint 1, one
Secondary wind pipeline 2, dense-and-weak separator 3,4, wind snouts 5 of pure oxygen gas flow pipeline, elbow pipeline 6 and straight tube pipeline 7；
Described 1 one end of square and round joint is connected with the straight tube pipeline 7, the other end of 1 connector of the circumference with it is described primary
2 one end of wind pipeline is connected, and the other end of a wind pipe 2 is connected with a wind snout 5, a wind pipe 2
On be provided with the pure oxygen gas flow pipeline 4, the pure oxygen gas flow pipeline 4 is connected with a wind pipe 2, the primary air piping
2 inner wall of road is equipped with the dense-and-weak separator 3.
Specifically, the connection mode between the square and round joint 1, a wind pipe 2 and a wind snout 5 is
Welding or flanged joint or monoblock cast.
Specifically, the steady combustion reamer of 5 upper and lower end outer of wind snout setting.
Specifically, the square and round joint 1 is provided with 2 inner wall of a wind pipe and 3 outside of the dense-and-weak separator
Ceramic scuff-resistant coating.
Specifically, a wind snout 5 is made of antiwear heat resisting cast steel, the square and round joint 1, a wind pipe 2
It is made with dense-and-weak separator 3 of abrasion resistant cast steel.
Specifically, the center line of the pure oxygen gas flow pipeline 4 forms acute angle, angle 30- with 2 center line of a wind pipe
45°
It is the dense of top that solid fuel air-flow is sent into the dense-and-weak separator 3 by solid fuels flow point by straight tube pipeline 8
Fuel gas stream and the light fuel gas stream of lower part, dense stock fuel gas stream coordinate the oxygen in pure oxygen gas flow pipeline 4 to be sprayed by First air
Mouth 5 is sent into burner hearths.
The present invention have good practicability, by with the connection mode in solid-fuel conduit road be straight tube connect or
Elbow connects, and selects different light-dark separation devices, reduces the complexity of equipment, applied widely, compact-sized, is convenient for
Installation, dismounting and the operation and maintenance of burner.
Claims (6)
1. a kind of DC burner for low volatile carbon-based fuel, which is characterized in that including square and round joint (1), First air
Pipeline (2), dense-and-weak separator (3), pure oxygen gas flow pipeline (4), a wind snout (5), elbow pipeline (6) and straight tube pipeline (7)；
Described square and round joint (1) one end is connected with the elbow pipeline (6) or is connected with the straight tube pipeline (7)；The circumference
The other end of connector (1) is connected with a wind pipe (2) one end；The other end and described one of a wind pipe (2)
Secondary wind snout (5) is connected, and the pure oxygen gas flow pipeline (4), the pure oxygen gas flow pipeline are provided on a wind pipe (2)
(4) it is connected with a wind pipe (2), a wind pipe (2) inner wall is equipped with the dense-and-weak separator (3).
2. a kind of DC burner for low volatile carbon-based fuel according to claim 1, which is characterized in that described
Connection mode between square and round joint (1), a wind pipe (2) and a wind snout (5) is welding, flanged joint
Or monoblock cast.
3. a kind of DC burner for low volatile carbon-based fuel according to claim 2, which is characterized in that described
Steady combustion reamer of wind snout (5) upper and lower end outer setting.
4. a kind of DC burner for low volatile carbon-based fuel according to claim 1, which is characterized in that described
Ceramic scuff-resistant coating is provided on the outside of square and round joint (1) and a wind pipe (2) inner wall and the dense-and-weak separator (3).
5. a kind of DC burner for low volatile carbon-based fuel according to claim 1, which is characterized in that described
One time wind snout (5) is made of antiwear heat resisting cast steel, the square and round joint (1), a wind pipe (2) and dense-and-weak separator
(3) it is made of abrasion resistant cast steel.
6. a kind of DC burner for low volatile carbon-based fuel according to claim 1, which is characterized in that described
The center line of pure oxygen gas flow pipeline (4) forms acute angle with a wind pipe (2) center line, and angle is 30-45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711431240.7A CN108167825A (en) | 2017-12-26 | 2017-12-26 | A kind of DC burner for low volatile carbon-based fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711431240.7A CN108167825A (en) | 2017-12-26 | 2017-12-26 | A kind of DC burner for low volatile carbon-based fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108167825A true CN108167825A (en) | 2018-06-15 |
Family
ID=62521138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711431240.7A Pending CN108167825A (en) | 2017-12-26 | 2017-12-26 | A kind of DC burner for low volatile carbon-based fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167825A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432448Y (en) * | 2000-05-22 | 2001-05-30 | 王炜 | Energy-saving environmental protection straight-flow coal powder burner |
| JP2005140480A (en) * | 2003-11-10 | 2005-06-02 | Hitachi Ltd | Solid fuel burner and burning method for solid fuel burner |
| CN102269424A (en) * | 2011-04-26 | 2011-12-07 | 向卫 | Oxygen enrichment plasma oil-free ignition and stable combustion method and device |
| CN204574022U (en) * | 2015-04-04 | 2015-08-19 | 哈尔滨博深科技发展有限公司 | Many bluff bodies air-coal separating coal powder burner |
-
2017
- 2017-12-26 CN CN201711431240.7A patent/CN108167825A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432448Y (en) * | 2000-05-22 | 2001-05-30 | 王炜 | Energy-saving environmental protection straight-flow coal powder burner |
| JP2005140480A (en) * | 2003-11-10 | 2005-06-02 | Hitachi Ltd | Solid fuel burner and burning method for solid fuel burner |
| CN102269424A (en) * | 2011-04-26 | 2011-12-07 | 向卫 | Oxygen enrichment plasma oil-free ignition and stable combustion method and device |
| CN204574022U (en) * | 2015-04-04 | 2015-08-19 | 哈尔滨博深科技发展有限公司 | Many bluff bodies air-coal separating coal powder burner |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180615 |
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| RJ01 | Rejection of invention patent application after publication |