CN105002317B - Heat-accumulating burner for heating furnace - Google Patents
Heat-accumulating burner for heating furnace Download PDFInfo
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- CN105002317B CN105002317B CN201510496956.XA CN201510496956A CN105002317B CN 105002317 B CN105002317 B CN 105002317B CN 201510496956 A CN201510496956 A CN 201510496956A CN 105002317 B CN105002317 B CN 105002317B
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- burner
- burner block
- heat
- flange
- furnace wall
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Abstract
Present invention is disclosed a kind of heat-accumulating burner for heating furnace, including burner block part, air inlet unit, heat storage tank, the first flange being arranged between burner block part and furnace wall, the second flange for being arranged at air inlet unit both sides, the 3rd flange between air inlet unit and air duct is arranged at；Air inlet unit is arranged between burner block part, heat storage tank；Burner block and metal casing portion that the burner block part is made including the use of the mullite pouring material of high temperature resistance and resistance to erosion；Two parts are cast in together when making, and air and gas passage are combined on an independent burner block, and structure is the same with conventional burner, and inner ring is gas port, and outer ring is air port, effectively tissue burning.Heat-accumulating burner of the present invention, high combustion efficiency is replaceable, and temperature homogeneity is good, solves many disadvantages of conventional rotary type regenerative burner, improves product quality, reduce entreprise cost, improves the working condition of workman.
Description
Technical field
The invention belongs to firing equipment technical field, it is related to a kind of heating furnace, more particularly to a kind of storage for heating furnace
Hot type burner.
Background technology
Blast furnace gas be in the byproduct that steel plant produce in ironmaking processes, blast furnace gas combustible component content only have~
30%, caloric value is low, and the temperature required for heating steel billet is unable to reach when directly using, can only be with some high heating value gases such as Jiao
Producer gas is used in mixed way, and utilization rate is low, and substantial amounts of blast furnace gas is discharged into greatly by way of directly lighting in iron and steel enterprise
In gas, not only waste mass energy, and severe contamination environment.
In the 1980s, regenerative combustion technology starts to occur, can be by blast furnace gas accumulation of heat to 1000 DEG C, so as to reach
To the purpose using BF gas heating, due to its significant energy-saving effect and very big reduction fuel cost, make heat storage type combustion
Technology is widely used quickly.
Heat-accumulating burner is the equipment of recuperative heater most critical, and the heat-accumulating burner being widely used now is (following
Referred to as " conventional rotary type regenerative burner "), there are shortcomings.Such as：There is no independent burner block 2 ', empty, coal gas is arranged apart, burner
Spout 4 ' and furnace wall 1 ' are an entirety, it is necessary to when constructing at the scene, and formwork cast completes (to see figure simultaneously with masonry for furnace wall
1, wherein mark 3 ' is air port, and 5 ' be furnace wall steel plate, and 6 ' be burner shell).In view of the limitation of site operation, Zhi Nengshe
Relatively more easy burner block spout pattern is counted into, even if so, jet size also is difficult to meet design requirement in construction, this
One fatal defects of burner are exactly, after burner block is damaged, it is impossible to repair and change.Empty, coal gas sprays into careless and sloppy formula combustion in burner hearth
Burn, no flame profile can say that efficiency of combustion is low.
In addition, another shortcoming of conventional rotary type regenerative burner is exactly, the burner life-span is low, maintenance difficult.Due to burner shell with
Furnace wall steel plate is welded directly together, and furnace wall localized hyperthermia can cause the cracking of weld seam, it is easy to cause high-temperature flue gas it is excessive and
Leakage fire phenomenon, must cut welding portion during maintenance, not only break up furnace wall steel plate, and maintenance duration, difficulty are big, and this is also
One of the reason for recuperative heater is often denounced.
In view of this, nowadays in the urgent need to designing a kind of new heat-accumulating burner, to overcome the above-mentioned of existing burner to lack
Fall into.
The content of the invention
The technical problems to be solved by the invention are：A kind of heat-accumulating burner for heating furnace is provided, burning can be improved
Efficiency, and be easily changed and repair.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
A kind of heat-accumulating burner for heating furnace, the burner includes：Burner block part, air inlet unit, accumulation of heat
Case, the first flange being arranged between burner block part and furnace wall, the second flange for being arranged at air inlet unit both sides, are set
The 3rd flange between air inlet unit and air duct；Air inlet unit be arranged at burner block part, heat storage tank it
Between；
Burner block and metal that the burner block part is made including the use of the mullite pouring material of high temperature resistance and resistance to erosion
Housing parts；Two parts are cast in together when making, and air and gas passage are combined on an independent burner block, knot
Structure is the same with conventional burner, and inner ring is gas port, and outer ring is air port, effectively tissue burning；
, only need to be according to burner block when the resistance to material of installation the building by laying bricks or stones independently of furnace wall of the burner block part, i.e. furnace wall is poured into a mould
Appearance and size reserving hole, during installation, burner block outer ring parcel tapetum fibrosum, fill space, with furnace wall steel plate using flange company
Connect, sealing surface brushing has the high-temp glue of high-temperature expansion property, it is ensured that sealing；
Because employing independent burner block, burner block previously baked shaping, burner block during installation in a pre-installation
Tapetum fibrosum is wrapped up in outer ring, is not directly contacted with the resistance to material of furnace wall, and burner block is each independent with furnace wall, after baker, tapetum fibrosum and furnace wall
Resistance to material expansion, certain gap is formed, it is necessary to when changing burner block, take apart and furnace wall steel plate between burner block and the resistance to material of furnace wall
The first flange of connection, just can extract burner block part out；
Coal gas is used with contraction, the oval spout of expanding channel, in the oval spout outer ring around several skies
Gas blowout mouthful so that combustion flame shape is in flat, the characteristics of flat flame has more uniform temperature, radiation efficiency is high；Together
When, ellipse ensures the burner block longer life-span from structure；
The front and back end of independent air inlet unit is connected with burner block part and heat storage tank respectively by second flange, bottom
Portion is connected by the 3rd flange with air duct；The length of air inlet unit is more than the length of burner block, only need to take connection apart
Flange can extract burner block part out after moving upward out；Using annular housing design inside air inlet unit, air enters ring
After shape cavity, it is uniformly distributed, is sprayed by the spout in burner block；
Honeycomb ceramics and floater guide block are provided with the heat storage tank, honeycomb ceramics all uses mullite material, it is big with specific surface area,
Accumulation of heat, exotherm rate are fast, and drag losses is small, the characteristics of temperature efficiency is high, can to greatest extent be returned by gas preheating to 1000 DEG C
Receive waste heat；Floater guide block uses high-alumina brick, with resistant to elevated temperatures feature, effectively keeps out the high temperature heat radiation in burner hearth, protects honeybee
Nest body；
Three-way diverter valve is installed on flue gas and gas piping before burner, coal gas is changed with flue gas during for burning and accumulation of heat
To, thermal resistance is designed with the flue gas branch pipe before each burner, when measurement temperature exceedes setting value, reversal valve forced commutation,
To protect honeycomb ceramics.
A kind of heat-accumulating burner for heating furnace, the burner includes：Burner block part, air inlet unit, accumulation of heat
Case, the first flange being arranged between burner block part and furnace wall, the second flange for being arranged at air inlet unit both sides, are set
The 3rd flange between air inlet unit and air duct；Air inlet unit be arranged at burner block part, heat storage tank it
Between；
Burner block and metal that the burner block part is made including the use of the mullite pouring material of high temperature resistance and resistance to erosion
Housing parts；Two parts are cast in together when making, and air and gas passage are combined on an independent burner block, knot
Structure is the same with conventional burner, and inner ring is gas port, and outer ring is air port, effectively tissue burning.
As a preferred embodiment of the present invention, installation the building by laying bricks or stones independently of furnace wall of the burner block part, i.e. furnace wall
During the cast of resistance to material, only need to according to burner block appearance and size reserving hole, during installation, burner block outer ring parcel tapetum fibrosum, filling
Space, is connected with furnace wall steel plate using first flange, and sealing surface brushing has the high-temp glue of high-temperature expansion property, it is ensured that sealing
Property.
As a preferred embodiment of the present invention, coal gas is used with " contraction, the oval spout of expanding channel ", at this
Oval spout is outer around several air ports so that combustion flame shape is in flat, and flat flame has temperature more
Uniformly, the characteristics of radiation efficiency is high；Meanwhile, ellipse ensures the burner block longer life-span from structure.
As a preferred embodiment of the present invention, the front and back end of independent air inlet unit by second flange respectively with
Burner block part and heat storage tank connection, bottom is connected by the 3rd flange with air duct；The length of air inlet unit is more than
The length of burner block, need to only take apart after adpting flange is moved upward out can extract burner block part out；Adopted inside air inlet unit
Designed, air enters after annular housing, is uniformly distributed, sprayed by the spout in burner block with annular housing.
Honeycomb ceramics and floater guide block are provided with the heat storage tank, honeycomb ceramics all uses mullite material, it is big with specific surface area,
Accumulation of heat, exotherm rate are fast, and drag losses is small, the characteristics of temperature efficiency is high, can be by gas preheating to 1000 DEG C, to greatest extent
Recovery waste heat.Floater guide block uses high-alumina brick, with resistant to elevated temperatures feature, can effectively keep out the high temperature heat radiation in burner hearth,
Protect honeycomb ceramics.
Three-way diverter valve is installed on flue gas and gas piping before burner, coal gas is changed with flue gas during for burning and accumulation of heat
To, thermal resistance is designed with the flue gas branch pipe before each burner, when measurement temperature exceedes setting value, reversal valve forced commutation,
To protect honeycomb ceramics.
The beneficial effects of the present invention are：Heat-accumulating burner proposed by the present invention for heating furnace, heat-accumulating burner tool
There is the independent burner block the same with conventional burner, replaceable, high combustion efficiency, temperature homogeneity is good, solves conventional rotary type regenerative
Many disadvantages of burner, improve product quality, reduce entreprise cost, improve the working condition of workman.
Heat-accumulating burner of the present invention has independent burner block, and structure is the same with conventional burner, easy for installation, can dismantle more
Change, and without destroying masonry for furnace wall.The present invention carries air inlet duct, and air port is combined with gas port in same burner block
On, flame is organized, high combustion efficiency.The flame profile of heat-accumulating burner of the present invention be flat, flame temperature evenly, spoke
Penetrate more efficient, NOx emission is lower, simultaneously, it is ensured that its service life grown.Burner block is changed without mobile heat storage tank and is cut
Pipe cutting road, is removed after air inlet unit upwards, you can extract burner block part, compact conformation, convenient arrangement and maintenance out.
Brief description of the drawings
Installations and structural representation of the Fig. 1 for conventional rotary type regenerative burner.
Fig. 2 is the structural representation of heat-accumulating burner of the present invention.
Fig. 3 is the burner block spout structure schematic diagram of heat-accumulating burner of the present invention
Installations and outline drawing one (elevation) of the Fig. 4 for heat-accumulating burner of the present invention.
Installations and outline drawing two (top view) of the Fig. 5 for heat-accumulating burner of the present invention.
Embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment one
Fig. 2 to Fig. 5 is referred to, present invention is disclosed a kind of heat-accumulating burner for heating furnace, the burner includes：Burn
Mouth brick part 1, air inlet unit 2, heat storage tank 3, the first flange 4 being arranged between burner block part 1 and furnace wall, it is arranged at
The second flange 5 of the both sides of air inlet unit 2, is arranged at the 3rd flange 6 between air inlet unit 2 and air duct；
Air inlet unit 2 is arranged between burner block part 1, heat storage tank 3.
The burner block 1.1 that the burner block part 1 is made including the use of the mullite pouring material of high temperature resistance and resistance to erosion with
Metal casing portion 1.2；Two parts are cast in together when making, and air and gas passage are combined in an independent burner
On brick, structure is the same with conventional burner, and inner ring is gas port, and outer ring is air port, effectively tissue burning.
, only need to be according to burner block when the resistance to material of installation the building by laying bricks or stones independently of furnace wall of the burner block part 1, i.e. furnace wall is poured into a mould
Appearance and size reserving hole, during installation, burner block outer ring parcel tapetum fibrosum 7, fill space, with furnace wall steel plate use flange 4
Connection, sealing surface brushing has the high-temp glue of high-temperature expansion property, it is ensured that sealing.
Because employing independent burner block, burner block previously baked shaping, burner block during installation in a pre-installation
Tapetum fibrosum is wrapped up in outer ring, is not directly contacted with the resistance to material of furnace wall, and burner block is each independent with furnace wall, after baker, tapetum fibrosum and furnace wall
Resistance to material expansion, certain gap is formed, it is necessary to when changing burner block, take apart and furnace wall steel plate between burner block and the resistance to material of furnace wall
The first flange of connection, just can extract burner block part out.
Coal gas is used with contraction, the oval spout of expanding channel, in the oval spout outer ring around several skies
Gas blowout mouthful so that combustion flame shape is in flat, the characteristics of flat flame has more uniform temperature, radiation efficiency is high；Together
When, ellipse ensures the burner block longer life-span from structure.
The front and back end of independent air inlet unit 2 is connected with burner block part and heat storage tank respectively by second flange 5,
Bottom is connected by the 3rd flange 6 with air duct；The length of air inlet unit 2 is more than the length of burner block, need to only take apart
Adpting flange can extract burner block part 1 out after moving upward out；The inside of air inlet unit 2 is designed using annular housing 8, air
Into after annular housing 8, it is uniformly distributed, is sprayed by the spout in burner block.
Embodiment two
The present embodiment and the difference of embodiment one are, in the present embodiment, and honeycomb ceramics and floater guide block are provided with the heat storage tank,
Honeycomb ceramics all uses mullite material, big with specific surface area, and accumulation of heat, exotherm rate are fast, and drag losses is small, and temperature efficiency is high
The characteristics of, can be by gas preheating to 1000 DEG C, recovery waste heat to greatest extent.Floater guide block uses high-alumina brick, with resistant to elevated temperatures
Feature, can effectively keep out the high temperature heat radiation in burner hearth, protect honeycomb ceramics.
Three-way diverter valve is installed on flue gas and gas piping before burner, coal gas is changed with flue gas during for burning and accumulation of heat
To, thermal resistance is designed with the flue gas branch pipe before each burner, when measurement temperature exceedes setting value, reversal valve forced commutation,
To protect honeycomb ceramics.
In summary, the heat-accumulating burner proposed by the present invention for heating furnace, heat-accumulating burner has with conventional burner
The same independent burner block, replaceable, high combustion efficiency, temperature homogeneity is good, solves many disadvantages of conventional rotary type regenerative burner
Disease, improves product quality, reduces entreprise cost, improves the working condition of workman.
Heat-accumulating burner of the present invention has independent burner block, and structure is the same with conventional burner, easy for installation, can dismantle more
Change, and without destroying masonry for furnace wall.The present invention carries air inlet duct, and air port is combined with gas port in same burner block
On, flame is organized, high combustion efficiency.The flame profile of heat-accumulating burner of the present invention be flat, flame temperature evenly, spoke
Penetrate more efficient, NOx emission is lower, simultaneously, it is ensured that its service life grown.Burner block is changed without mobile heat storage tank and is cut
Pipe cutting road, is removed after air inlet unit upwards, you can extract burner block part, compact conformation, convenient arrangement and maintenance out.
Here description of the invention and application be illustrative, be not wishing to limit the scope of the invention to above-described embodiment
In.The deformation and change of embodiments disclosed herein are possible, real for those skilled in the art
The replacement and equivalent various parts for applying example are known.It should be appreciated by the person skilled in the art that not departing from the present invention
Spirit or essential characteristics in the case of, the present invention can in other forms, structure, arrangement, ratio, and with other components,
Material and part are realized.In the case where not departing from scope and spirit of the present invention, embodiments disclosed herein can be entered
The other deformations of row and change.
Claims (1)
1. a kind of heat-accumulating burner for heating furnace, it is characterised in that the burner includes：Burner block part (1), air enter
Mouthful unit (2), heat storage tank (3), it is arranged at first flange (4) of the burner block part (1) between furnace wall, is arranged at air intake
The second flange (5) of unit (2) both sides, is arranged at threeth flange (6) of the air inlet unit (2) between air duct；Institute
Air inlet unit (2) is stated to be arranged between burner block part (1), heat storage tank (3)；
The burner block (1.1) that the burner block part (1) is made including the use of the mullite pouring material of high temperature resistance and resistance to erosion with
Metal casing portion (1.2), two parts are cast in together when making；Air and gas passage are combined in an independent burning
On mouth brick (1.1), inner ring is gas port, and outer ring is air port, effectively tissue burning；
, only need to be according to burner block when the resistance to material of installation the building by laying bricks or stones independently of furnace wall of the burner block part (1), i.e. furnace wall is poured into a mould
Appearance and size reserving hole, during installation, burner block outer ring parcel tapetum fibrosum (7) fills space, and the first method is used with furnace wall steel plate
Blue (4) connection, sealing surface brushing has the high-temp glue of high-temperature expansion property, it is ensured that sealing；
Using independent burner block, burner block previously baked shaping in a pre-installation, the outer ring parcel of burner block is fine during installation
Blanket is tieed up, is not directly contacted with the resistance to material of furnace wall, burner block is each independent with furnace wall, after baker, tapetum fibrosum and the resistance to material expansion of furnace wall,
Certain gap is formed between burner block and the resistance to material of furnace wall, it is necessary to when changing burner block, take first be connected with furnace wall steel plate apart
Flange (4), just can extract burner block part out；
Coal gas is used with contraction, the oval spout of expanding channel, is sprayed in the oval spout outer ring around several air
Mouthful so that combustion flame shape is in flat, the characteristics of flat flame has more uniform temperature, radiation efficiency is high；Meanwhile, it is ellipse
It is circular to ensure the burner block longer life-span from structure；
The front and back end of independent air inlet unit (2) by second flange (5) respectively with burner block part (1) and heat storage tank
(3) connect, bottom is connected by the 3rd flange (6) with air duct；The length of air inlet unit (2) is more than the length of burner block
Degree, need to only take apart can extract burner block part (1) out after adpting flange is moved upward out；Ring is used inside air inlet unit (2)
Shape cavity (8) is designed, and air enters after annular housing (8), is uniformly distributed, and is sprayed by the spout in burner block；
Honeycomb ceramics and floater guide block are provided with the heat storage tank (3), honeycomb ceramics all uses mullite material, it is big with specific surface area,
Accumulation of heat, exotherm rate are fast, and drag losses is small, the characteristics of temperature efficiency is high, can to greatest extent be returned by gas preheating to 1000 DEG C
Receive waste heat；Floater guide block uses high-alumina brick, with resistant to elevated temperatures feature, effectively keeps out the high temperature heat radiation in burner hearth, protects honeybee
Nest body；
Three-way diverter valve is installed on flue gas and gas piping before burner, coal gas commutates with flue gas during for burning and accumulation of heat,
Thermal resistance is designed with flue gas branch pipe before each burner, when measurement temperature exceedes setting value, reversal valve forced commutation, to protect
Protect honeycomb ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510496956.XA CN105002317B (en) | 2015-08-13 | 2015-08-13 | Heat-accumulating burner for heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510496956.XA CN105002317B (en) | 2015-08-13 | 2015-08-13 | Heat-accumulating burner for heating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN105002317A CN105002317A (en) | 2015-10-28 |
| CN105002317B true CN105002317B (en) | 2017-09-29 |
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ID=54375178
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510496956.XA Active CN105002317B (en) | 2015-08-13 | 2015-08-13 | Heat-accumulating burner for heating furnace |
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| CN (1) | CN105002317B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440814B (en) * | 2016-09-13 | 2018-09-18 | 上海二十冶建设有限公司 | The fixing means of burner block in a kind of heating furnace furnace wall protective demolition |
| CN108330272A (en) * | 2018-01-19 | 2018-07-27 | 山东钢铁集团日照有限公司 | A kind of single Regeneratiue billet reheating furnace using blast furnace gas |
| CN109945192B (en) * | 2019-03-12 | 2024-03-26 | 贵州南方科技有限责任公司 | High-calorific-value fuel concentric jet air single-heat-storage burner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934937Y (en) * | 2006-07-28 | 2007-08-15 | 江阴兴澄特种钢铁有限公司 | Honeycomb heat-storage burning nozzle |
| CN201225620Y (en) * | 2008-06-16 | 2009-04-22 | 武汉科虹工业炉有限公司 | Air single thermal storage combustor |
| CN101608793A (en) * | 2008-06-16 | 2009-12-23 | 武汉科虹工业炉有限公司 | Air and gas double heat accumulating type burner |
| CN202973099U (en) * | 2012-07-25 | 2013-06-05 | 斯坦因（上海）工业炉有限公司 | Wide flat flame heat accumulating type burner |
-
2015
- 2015-08-13 CN CN201510496956.XA patent/CN105002317B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934937Y (en) * | 2006-07-28 | 2007-08-15 | 江阴兴澄特种钢铁有限公司 | Honeycomb heat-storage burning nozzle |
| CN201225620Y (en) * | 2008-06-16 | 2009-04-22 | 武汉科虹工业炉有限公司 | Air single thermal storage combustor |
| CN101608793A (en) * | 2008-06-16 | 2009-12-23 | 武汉科虹工业炉有限公司 | Air and gas double heat accumulating type burner |
| CN202973099U (en) * | 2012-07-25 | 2013-06-05 | 斯坦因（上海）工业炉有限公司 | Wide flat flame heat accumulating type burner |
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| Publication number | Publication date |
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| CN105002317A (en) | 2015-10-28 |
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