CN201517772U - Grid ceramic burner of hot-blast stove - Google Patents
Grid ceramic burner of hot-blast stove Download PDFInfo
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- CN201517772U CN201517772U CN2009202036750U CN200920203675U CN201517772U CN 201517772 U CN201517772 U CN 201517772U CN 2009202036750 U CN2009202036750 U CN 2009202036750U CN 200920203675 U CN200920203675 U CN 200920203675U CN 201517772 U CN201517772 U CN 201517772U
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Abstract
The utility model provides a grid ceramic burner of hot-blast stove which is composed of an air buffer chamber, a gas buffer chamber, an air expansion channel, a gas expansion channel, an air gas mixing segment and a gas mixture outlet. The combined brick, the fixed brick and the special-shaped brick are adopted for building. Furthermore an arc structure is provided at the upper part of the air buffer chamber and the gas buffer chamber. The integral stability is remarkable improved. Furthermore the falling brick generated by the combustion vibration is prevented with the help of a combustion damping ring so that the service life of the grid ceramic burner is same with that of the hot-blast stove. The air buffer chamber, the gas buffer chamber, an air bypass channel and a gas bypass channel are set so that the air flow and the gas flow can be uniformly distributed in the respective channel in the ascending process, and the realization of uniform mixing in the mixing segment is facilitated. Completing burning of large amount of air and gas can be realized in definite time and space. The grid ceramic burner of hot-blast stove has a novel and practical structure, and is particularly suitable for the hot-blast stove of a large-size blast furnace with height larger than 2000 m3.
Description
Technical field
The utility model relates to a kind of hot-blast stove grid ceramic burner.
Background technology
Improve hot blast temperature, reduce fuel consumption, prolonging the hot-blast stove life-span is the target that blast furnace ironmaking production is pursued all the time.And the efficient of hot-blast stove gas burner and quality are the decision hot blast temperatures, the key factor in fuel consumption and hot-blast stove life-span, widely used similar ceramic burner structure is unreasonable at present, overall structure is stable inadequately, its underpart is supported and is adopted steel construction, yielding under high temperature action, cause top air, gas passage transform shape to fall brick, stop up gas channel, burner outlet is not considered the premix and the disturbance of air and coal gas in addition, and air and coal gas can not be realized abundant mixed combustion in limited space-time.Be to realize the high-temperature long-life of hot-blast stove and reduce the target of fuel consumption, dwindle the gap with external advanced level, be necessary existing ceramic combustor of hot-blast stove is improved innovation, to adapt to the needs of China's steel and iron industry technological progress and sustainable development.
Summary of the invention
The purpose of this utility model is to provide a kind of hot-blast stove grid ceramic burner, and its Stability Analysis of Structures is reasonable, air gas evenly mixes also and can fully burn.
The technical solution of the utility model is: this hot-blast stove grid ceramic burner mainly is made up of air buffer chamber, coal gas surge chamber, air expansion passage, coal gas expanding channel, air gas mixer and mixed gas outlet.This grid ceramic burner is vertical layout, and air buffer chamber, coal gas surge chamber are positioned at the ceramic burner below, and air expansion passage, coal gas expanding channel are positioned at the ceramic burner middle part, and air gas mixer and mixed gas outlet are positioned at ceramic burner top.Be provided with air intake, air split channel and arch form air outlet passage at air buffer chamber, air intake, air split channel and arch form air outlet passage communicate and by modular tile and fixedly brick form; Be provided with gas entry, coal gas split channel and arch form gas exit passage at the coal gas surge chamber, gas entry, coal gas split channel and arch form gas exit passage communicate and by modular tile and fixedly brick form; The air expansion passage is alternate with the coal gas expanding channel to be arranged in parallel, and passage is by heterotypic channel brick, crosswise fixed brick, circumferentially fixedly brick and 60 ° of guiding devices are formed; The air gas mixer is made up of two-layer special form brick, and two-layer brick is arranged vertically, and stings block mutually, and wherein second layer brick is arranged along channel-length direction above being arranged in air expansion passage and coal gas expanding channel.
The utility model because all adopt modular tiles, fixedly brick and special form brick are built by laying bricks or stones, and arch form structure is set at air buffer chamber and coal gas surge chamber top, therefore this grid ceramic burner resistance to overturning obviously strengthens, avoid the brick that combustion shock produces, can make the service life of service life of this grid ceramic burner and hot-blast stove synchronous.
The utility model flows in the passage that can be evenly distributed on separately air stream and coal gas because air buffer chamber, coal gas surge chamber, air split channel and coal gas split channel are set in uphill process, help realizing evenly mixing in mixer.
The utility model air gas mixer and mixed gas outlet are owing to be provided with that mix aperture, second layer brick are arranged in the air expansion passage and coal gas expanding channel top is arranged along channel-length direction, it is more abundant that air, coal gas are mixed, and can realize the completing combustion of a large amount of air, coal gas in limited time and space.
The utility model novel structure, practicality is particularly suitable for 2000m
3The hot-blast stove of above large blast furnace has vast potential for future development.
Description of drawings
Fig. 1 is the utility model facade structures schematic diagram;
Fig. 2 is an A-A profile among Fig. 1;
Fig. 3 is a B-B profile among Fig. 1;
Fig. 4 is a C-C profile among Fig. 1;
Fig. 5 is a D-D profile among Fig. 1;
Fig. 6 is an E-E profile among Fig. 1;
Fig. 7 is a F-F profile among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, the utility model bottom is provided with air buffer chamber 1 and coal gas surge chamber 2, air buffer chamber 1 comprises air intake 3, air split channel 4, arch form air outlet passage 5, coal gas surge chamber 2 comprises gas entry 6, coal gas split channel 7, arch form gas exit passage 8, establish blow-off pipe and valve 9 in air buffer chamber 1 and the coal gas surge chamber 2, wherein air intake and gas entry are arranged on same the center line, and air, coal gas split channel and arch form exit passageway are by modular tile 10 and fixedly brick 11 and runner boxing material 12 are formed; The utility model middle part is provided with air expansion passage 13, coal gas expanding channel 14, expanding channel by heterotypic channel brick 15, crosswise fixed brick 16, circumferentially fixedly brick 17 and 60 ° of guiding devices 18 are formed; At air duct and gas passage top mix aperture 23 is set, the utility model top is provided with air gas mixer 19 and mixed gas outlet 20, and damping wall 21 is set for the periphery of air gas mixer 19 and mixed gas outlet 20 and top and device 22 is spied in igniting.Mixed gas outlet 20 adopts and has spacing brick the building of expanding rectangular opening.
Hot-blast stove enters air buffer chamber 1 and coal gas surge chamber 2 with combustion air and coal gas respectively along same center line, expansion buffering back air evenly enters air split channel 4, arch form air outlet passage 5, enters the air expansion passage 13 that is provided with guiding device 18 then.Expansion buffering back coal gas evenly enters coal gas split channel 7, arch form gas exit passage 8, enters the coal gas expanding channel 14 that is provided with guiding device 18 then.Mix aperture is established on the top of air expansion passage 13 and coal gas expanding channel 14, make air and coal gas before entering mixer, carry out premixed, enter air gas mixer 19 through air behind the expanding channel and coal gas, air and coal gas are subjected to mixing the cutting of segment body both direction in mixer, and can carry out premixed by mix aperture, therefore can realize abundant mixing.Mix through further spreading after well-mixed coal gas and the Air mixing gas outflow gaseous mixture expansion outlet 20, and under the help of burning shock ring 21, can in moment, realize completing combustion, efficiency of combustion can improve 15%, burning capacity is big, 1 hour incendivity blast furnace gas of burner 15-20 * 10
4m
3The utility model Stability Analysis of Structures is reasonable, and combustion shock is very little, and the generation life-span was expected to reach more than 25 years.The utility model is particularly suitable for 2000m
3The hot-blast stove of above large blast furnace, along with the raising of China's steel and iron industry concentration degree and the acceleration of the large-scale high efficiency of blast furnace, application prospect of the present utility model is very wide.
Claims (5)
1. a hot-blast stove grid ceramic burner is characterized in that mainly being made up of air buffer chamber (1), coal gas surge chamber (2), air expansion passage (13), coal gas expanding channel (14), air gas mixer (19) and gaseous mixture expansion outlet (20); Air buffer chamber (1) comprises air intake (3), air split channel (4), arch form air outlet passage (5), and air split channel (4) and arch form air outlet passage (5) communicate with air expansion passage (13); Coal gas surge chamber (2) comprises gas entry (6), coal gas split channel (7), arch form gas exit passage (8), and coal gas split channel (7) and arch form gas exit passage (8) communicate with coal gas expanding channel (14).
2. hot-blast stove grid ceramic burner according to claim 1, it is characterized in that establishing in air buffer chamber (1) and the coal gas surge chamber (2) blow-off pipe and valve (9), air intake (3) and gas entry (6) are arranged on same the center line, and air, coal gas split channel (4,7) and arch form exit passageway (5,8) are by modular tile (10) and fixedly brick (11) and runner boxing material (12) are formed.
3. hot-blast stove grid ceramic burner according to claim 1 is characterized in that air expansion passage (13), coal gas expanding channel (14) are by heterotypic channel brick (15), crosswise fixed brick (16), circumferentially fixedly brick (17) and 60 ° of guiding devices (18) are formed.
4. hot-blast stove grid ceramic burner according to claim 1, it is characterized in that air gas mixer (19) is made up of two-layer special form brick, two-layer brick is arranged vertically, sting block mutually, wherein second layer brick is arranged along channel-length direction above being arranged in air expansion passage (13) and coal gas expanding channel (14).
5. hot-blast stove grid ceramic burner according to claim 4, it is characterized in that the periphery of air gas mixer (19) and mixed gas outlet (20) and the top is provided with damping wall (21) and device (22) is spied in igniting, mixed gas outlet (20) adopts and has spacing brick the building of expanding rectangular opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202036750U CN201517772U (en) | 2009-09-25 | 2009-09-25 | Grid ceramic burner of hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202036750U CN201517772U (en) | 2009-09-25 | 2009-09-25 | Grid ceramic burner of hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517772U true CN201517772U (en) | 2010-06-30 |
Family
ID=42498495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202036750U Expired - Fee Related CN201517772U (en) | 2009-09-25 | 2009-09-25 | Grid ceramic burner of hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869903A (en) * | 2019-01-31 | 2019-06-11 | 佛山市浩丰重工有限公司 | A kind of fuel gas hot-blast stove |
-
2009
- 2009-09-25 CN CN2009202036750U patent/CN201517772U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869903A (en) * | 2019-01-31 | 2019-06-11 | 佛山市浩丰重工有限公司 | A kind of fuel gas hot-blast stove |
| CN109869903B (en) * | 2019-01-31 | 2023-09-01 | 佛山市浩丰重工有限公司 | Gas hot-blast stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20140925 |
|
| EXPY | Termination of patent right or utility model |