CN104819463B - Coal burner - Google Patents
Coal burner Download PDFInfo
- Publication number
- CN104819463B CN104819463B CN201510265702.7A CN201510265702A CN104819463B CN 104819463 B CN104819463 B CN 104819463B CN 201510265702 A CN201510265702 A CN 201510265702A CN 104819463 B CN104819463 B CN 104819463B
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- Prior art keywords
- coal
- airduct
- blade
- igniting
- deep bead
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
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- 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
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
- F23L9/04—Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air beyond the fire, i.e. nearer the smoke outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A kind of coal burner, including outer tube, inner core, secondary air blade, deep bead, igniting air blade, spillplate, vertebral body, coal blade, YE, see fire tube I, coal pipe, see fire tube II, burning torch, igniting airduct, airduct, also include a pre-burning cone ring, above outer tube, connect pre-burning cone ring；Coal pipe is connected with outer tube inner wall and is connected by air blade of lighting a fire with igniting airduct inwall；Igniting airduct outer wall is connected with deep bead；Deep bead is connected with inner core inwall by secondary air blade；Airduct is connected with outer tube, igniting airduct；Spillplate is connected with vertebral body；Vertebral body is connected with coal blade；Coal blade is connected with coal pipe.Design structure formula of the present invention is by air-cooled cooling, burner normally runs, solve the problems, such as to occur in cooling by water burn out burner or make pre-burning locular wall produce crack, it is to avoid accident solves the problem easily producing coking dust stratification in coal dust firing in prior art.
Description
Technical field
The present invention relates to boiler combustion field, specifically a kind of coal burner.
Background technology
There is the chain furnace of poor efficiency, high energy consumption, high pollution, the wherein coal dust of chain furnace in China at this stage or in a large number
Combustion rate only has 65%, and the coal combustion rate of fluidized-bed combustion boiler is also only 85% it is impossible to realize clean combustion, exist poor efficiency,
The utilization of energy problem of high energy consumption, and there is energy supply problem geographically in oil-gas boiler, and existing coal dust burner
Easily coking dust stratification, needs artificial periodic cleaning, time-consuming takes a lot of work.
Content of the invention
In sum, it is an object of the invention to provide a kind of coal burner.
The purpose of the present invention is realized by following technology：
A kind of coal burner, including outer tube, inner core, secondary air blade, deep bead, igniting air blade, spillplate, vertebra
Body, coal blade, YE, sight fire tube I, coal pipe, sight fire tube II, burning torch, igniting airduct, airduct, also include one
Pre-burning cone ring, connects pre-burning cone ring above outer tube；Coal pipe is connected with outer tube inner wall and airduct inwall of lighting a fire passes through igniting
Air blade connects；Igniting airduct outer wall is connected with deep bead；Deep bead is connected with inner core inwall by secondary air blade；Airduct with
Outer tube, igniting airduct connect；Spillplate is connected with vertebral body；Vertebral body is connected with coal blade；Coal blade is connected with coal pipe.
It is provided with dividing plate in above-mentioned airduct, ignition air duct and secondary air duct will be divided in airduct.
It is provided with air door I in above-mentioned ignition air duct；It is provided with air door II in secondary air duct；
Above-mentioned YE is used for controlling air door I and air door II.
Above-mentioned burning torch is connected with deep bead；The pipette tips of burning torch expose to precombustion chamber.
One end of above-mentioned sight fire tube I is connected with deep bead, forms flame-observing hole on deep bead；Its other end is provided with shooting
Head；One end of described sight fire tube II is connected with deep bead, forms flame-observing hole on deep bead；Its other end is provided with fire inspection instrument.
Above-mentioned photographic head is used for observing precombustion chamber；Described fire inspection instrument is used for detecting pre-burning Indoor Combustion situation, plays
Safeguard protection acts on；
Secondary air chamber is constituted between above-mentioned outer tube and inner core；Inner core and deep bead constitute precombustion chamber；Coal pipe and point
Igniting air compartment is constituted between windburn pipe.
Above-mentioned photographic head and fire inspection instrument are connected with computer.
Advantages of the present invention and beneficial effect：
1st, by air-cooled cooling, burner normally runs design structure formula of the present invention, solves appearance in cooling by water
Burn out burner or make pre-burning locular wall produce the problem in crack, it is to avoid the generation of accident.
2nd, present invention igniting is more reliable and more stable, and coal dust obtains substantially stabilized burning, solves coal dust in prior art
The problem of coking dust stratification is easily produced in burning.
3rd, Duct design of the present invention air door, by damper so that flame is controlled, temperature is adjustable.
4th, the present invention connects pre-burning cone ring above outer tube, allows the flame that coal combustion produces more to concentrate so that precombustion chamber
Middle coal combustion more stable, flame is not easy to extinguish, thus solving the problems, such as that coking pasted by existing boiler.
5th, the present invention adopts the structure design of outer tube inner core, forms secondary air chamber so that the burning of precombustion chamber low-temperature stabilization, whole
Temperature equalization in body burner hearth, plays desulphurization denitration, reduces the discharge capacity of nitrogen oxides.
Brief description
Fig. 1 is the structural representation of the present invention.
In figure：1- outer tube, 2- inner core, bis- air blades of 3-, 4- deep bead, 5- igniting air blade, 6- spillplate, 7- pre-burning
Room, 8- vertebral body, 9- coal blade, 10- YE, 11- air door I, 12- ignition air duct, 13- secondary air duct, 14- air door II,
15- see fire tube I, 16- igniting air compartment, 17- photographic head, 18- coal pipe, 19- fire inspection instrument, 20- see fire tube II, 21- burning torch,
22- secondary air chamber, 23- igniting airduct, 24- airduct, 25- pre-burning cone ring.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of coal burner, including outer tube 1, inner core 2, secondary air blade 3, deep bead 4, igniting fan blade
Piece 5, spillplate 6, vertebral body 8, coal blade 9, YE 10, sight fire tube I 15, coal pipe 18, sight fire tube II 20, burning torch
21st, igniting airduct 23, airduct 24, also includes a pre-burning cone ring 25, and outer tube 1 top connects pre-burning cone ring 25；Coal pipe
18 be connected with outer tube 1 inwall with igniting airduct 23 inwall pass through light a fire air blade 5 be connected；Igniting airduct 23 outer wall and deep bead 4
Connect；Deep bead 4 is connected with inner core 2 inwall by secondary air blade 3；Airduct 24 is connected with outer tube 1, igniting airduct 23；Gear coal
Plate 6 is connected with vertebral body 8；Vertebral body 8 is connected with coal blade 9；Coal blade 9 is connected with coal pipe 18；It is provided with dividing plate, by wind in airduct 24
It is divided into ignition air duct 12 and secondary air duct 13 in pipe 24；It is provided with air door I 11 in ignition air duct 12；It is provided with air door in secondary air duct 13
Ⅱ14；YE 10 is used for controlling air door I 11 and air door II 14；Burning torch 21 is connected with deep bead 4；The rifle of burning torch 21
Head exposes to precombustion chamber 7；The one end seeing fire tube I 15 is connected with deep bead 4, forms flame-observing hole on deep bead；Its other end sets
There is photographic head 17；The one end seeing fire tube II 20 is connected with deep bead 4, forms flame-observing hole on deep bead；Its other end is provided with fire
Inspection instrument 19.
Photographic head 17 is used for observing precombustion chamber 7；Described fire inspection instrument 19 is used for detecting combustion case in precombustion chamber 7, plays
Safeguard protection acts on, and photographic head 17 and fire inspection instrument 19 are connected with computer.
Secondary air chamber 22 is constituted between outer tube 1 and inner core 2；Inner core 2 and deep bead 4 constitute precombustion chamber 7；Coal pipe 18 with
Igniting air compartment 16 is constituted between igniting airduct 23.
Embodiment
During boiler startup, the burner hearth of boiler is cleaned, and the pipette tips of burning torch 21 are lighted, and is adjusted by YE 10
Air door I 11 and air door II 14；In coal pipe 18, coal is entered by First air, in entrance precombustion chamber 7, in spillplate 6 and vertebral body 8
Under effect, coal dust and First air are disperseed to spray in precombustion chamber 7；Coal dust in precombustion chamber 7 fully burns.
By YE 10 damper I 11, the wind in ignition air duct 12 enters precombustion chamber by secondary air chamber 22
7, provide oxygen to precombustion chamber 7, allow coal dust stably to burn, burner hearth low temperature harmonious combustion, plays desulphurization denitration, reduces nitrogen oxides
Discharge capacity.
By YE 10 damper II 14, the wind inlet point windburn room 16 in secondary air duct 13, reduce inner core 2
Wall temperature, allows the coal dust in precombustion chamber 7 be directly entered burner hearth simultaneously, does not spread to surrounding；Make the pre-burning interior of burner not
Coking dust stratification.
The wind of secondary air chamber 22 enters precombustion chamber 7 by secondary air blade 3, and the wind of precombustion chamber 7 is along pre-burning cone ring 25
The conical surface to cone mouth blow out, allow coal combustion produce flame more concentrate so that in precombustion chamber coal combustion more stable, flame is not easy
Extinguish, the coal dust in precombustion chamber 7 evenly, solves the problems, such as that coking pasted by existing boiler.
Claims (8)
1. a kind of coal burner, including outer tube（1）, inner core（2）, secondary air blade（3）, deep bead（4）, igniting air blade
（5）, spillplate（6）, vertebral body（8）, coal blade（9）, YE（10）, see fire tube I（15）, coal pipe（18）, see fire tube
Ⅱ（20）, burning torch（21）, igniting airduct（23）, airduct（24）It is characterised in that：Also include a pre-burning cone ring（25）,
Outer tube（1）Top connects pre-burning cone ring（25）；Coal pipe（18）With outer tube（1）Inwall connects and igniting airduct（23）Inwall
By air blade of lighting a fire（5）Connect；Igniting airduct（23）Outer wall and deep bead（4）Connect；Deep bead（4）By secondary air blade
（3）With inner core（2）Inwall connects；Airduct（24）With outer tube（1）, igniting airduct（23）Connect；Spillplate（6）With vertebral body（8）Even
Connect；Vertebral body（8）With coal blade（9）Connect；Coal blade（9）With coal pipe（18）Connect.
2. as claimed in claim 1 a kind of coal burner it is characterised in that：Described airduct（24）Inside it is provided with dividing plate, will
Airduct（24）Inside it is divided into ignition air duct（12）And secondary air duct（13）.
3. as claimed in claim 2 a kind of coal burner it is characterised in that：Described ignition air duct（12）Inside it is provided with air door
Ⅰ（11）；Secondary air duct（13）Inside it is provided with air door II（14）.
4. as claimed in claim 1 a kind of coal burner it is characterised in that：Described YE（10）For controlling
Air door I（11）With air door II（14）.
5. as claimed in claim 1 a kind of coal burner it is characterised in that：Described burning torch（21）With deep bead（4）
Connect；Burning torch（21）Pipette tips expose to precombustion chamber（7）.
6. as claimed in claim 1 a kind of coal burner it is characterised in that：Described sight fire tube I（15）One end and gear
Aerofoil（4）Connect, flame-observing hole is formed on deep bead；Its other end is provided with photographic head（17）；Described sight fire tube II（20）'s
One end and deep bead（4）Connect, in deep bead（4）Upper formation flame-observing hole；Its other end is provided with fire inspection instrument（19）.
7. as claimed in claim 6 a kind of coal burner it is characterised in that：Described photographic head（17）For observing pre-burning
Room（7）；Described fire inspection instrument（19）For detecting precombustion chamber（7）Interior combustion case, plays safeguard protection effect.
8. as claimed in claim 1 a kind of coal burner it is characterised in that：Described outer tube（1）With inner core（2）Between structure
Become secondary air chamber（22）；Inner core（2）With deep bead（4）Constitute precombustion chamber（7）；Coal pipe（18）With igniting airduct（23）Between
Constitute igniting air compartment（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510265702.7A CN104819463B (en) | 2015-05-24 | 2015-05-24 | Coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510265702.7A CN104819463B (en) | 2015-05-24 | 2015-05-24 | Coal burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104819463A CN104819463A (en) | 2015-08-05 |
| CN104819463B true CN104819463B (en) | 2017-03-01 |
Family
ID=53729844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510265702.7A Active CN104819463B (en) | 2015-05-24 | 2015-05-24 | Coal burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104819463B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201680364U (en) * | 2010-04-06 | 2010-12-22 | 山西蓝天环保设备有限公司 | Efficient low NOx pulverized coal burner for small and medium-sized industrial boilers |
| CN102454984A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Air channel ignition system and ignition burner under bed |
| CN103196137A (en) * | 2012-01-04 | 2013-07-10 | 刘柏谦 | Multi-burner pulverized coal combustion device |
| EP2623861A1 (en) * | 2010-09-30 | 2013-08-07 | Babcock-Hitachi Kabushiki Kaisha | Combustion system and method for operating same |
| CN103615717A (en) * | 2013-10-24 | 2014-03-05 | 中国计量学院 | Novel oxygen enrichment tiny-oil ignition and ultralow load stable-combustion combustor |
| CN104501145A (en) * | 2014-12-24 | 2015-04-08 | 山西蓝天环保设备有限公司 | Self-preheating and sectionalized pulverized coal combustion low-NOx combustion device and method |
| CN204678334U (en) * | 2015-05-24 | 2015-09-30 | 杨飞 | Coal burner |
-
2015
- 2015-05-24 CN CN201510265702.7A patent/CN104819463B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201680364U (en) * | 2010-04-06 | 2010-12-22 | 山西蓝天环保设备有限公司 | Efficient low NOx pulverized coal burner for small and medium-sized industrial boilers |
| EP2623861A1 (en) * | 2010-09-30 | 2013-08-07 | Babcock-Hitachi Kabushiki Kaisha | Combustion system and method for operating same |
| CN102454984A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Air channel ignition system and ignition burner under bed |
| CN103196137A (en) * | 2012-01-04 | 2013-07-10 | 刘柏谦 | Multi-burner pulverized coal combustion device |
| CN103615717A (en) * | 2013-10-24 | 2014-03-05 | 中国计量学院 | Novel oxygen enrichment tiny-oil ignition and ultralow load stable-combustion combustor |
| CN104501145A (en) * | 2014-12-24 | 2015-04-08 | 山西蓝天环保设备有限公司 | Self-preheating and sectionalized pulverized coal combustion low-NOx combustion device and method |
| CN204678334U (en) * | 2015-05-24 | 2015-09-30 | 杨飞 | Coal burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104819463A (en) | 2015-08-05 |
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