CN201269526Y - High-efficiency rotational flow diffusion type combustor of top-burning hot blast stove - Google Patents
High-efficiency rotational flow diffusion type combustor of top-burning hot blast stove Download PDFInfo
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- CN201269526Y CN201269526Y CNU2008201098558U CN200820109855U CN201269526Y CN 201269526 Y CN201269526 Y CN 201269526Y CN U2008201098558 U CNU2008201098558 U CN U2008201098558U CN 200820109855 U CN200820109855 U CN 200820109855U CN 201269526 Y CN201269526 Y CN 201269526Y
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Abstract
The utility model relates to an efficient swirling diffusing-typed burner of a top combustion hot blast stove, which belongs to the technical field of a hot blast stove burner. The burner is arranged on the top of the top combustion hot blast stove and comprises a combustion-supporting air-coming tube nozzle, a gas-coming tube nozzle, a combustion-supporting air loop, a gas loop, a combustion-supporting air nozzle, a gas nozzle and an empty gas swirling premixer. The vault of the empty gas swirling premixer is a round or oval or parabola-shaped or catenary-shaped space, and the lower part thereof is a cylindrical space. The burner also comprises a cylindrical or cone or hyperbolic cylindrical throat and a bell mouth-shaped diffusing combustion chamber. The utility model has the advantages that the structure is flexible, the combustion-supporting air nozzle and the gas nozzle can be adjusted flexibly within the range of 180 DEG, and the burner is applicable to metallurgy and energy-saving technology fields and has good adaptability to all iron-making arts and production working conditions. The burner has swirling diffusion combustion form and uniform and ordered high temperature smoke and gas flow field, thus being capable of improving the use efficiency of the checker bricks, prolonging the service life of the checker bricks and controlling the formation of pollutants efficiently.
Description
Technical field
The utility model belongs to the hot-blast stove gas burner technical field, and a kind of top combustion stove high-efficiency cyclone diffusion flame burner particularly is provided, and is applicable to the top combustion stove that blast furnace ironmaking and fused reduction iron-smelting are used in the iron-smelting process.Also can be used for other need be heated to gaseous medium in the industrial technology field more than 1000 ℃.
Background technology
In traditional blast furnace iron-making process, blast furnace working condition difference is huge, mainly contains: a. furnace volume changes greatly, from 1000m
3Following small furnace is to 5000m
3Above ultra-large type blast furnace, various heat sizes are complete; B. rate of driving difference, because factor affecting such as material conditions, the production capacity of blast furnace is also inequality; C. working system difference mainly contains two and burns and one send, three burn and one send, two burn two and send etc.; D. the technological process difference comprises not preheating of space gas, space gas low-temperature prewarming, air high temperature preheating etc.; E. coal gas condition difference comprises and uses single blast furnace gas, coke-stove gas+blast furnace gas, coal gas of converter+blast furnace gas etc.
With existing nearly two one-hundred-year histories of hot-blast stove heating air blast, heating back wind-warm syndrome has only 149 ℃ at first in blast furnace ironmaking.Along with continuous advancement in technology, wind-warm syndrome is the highest has at present reached 1350 ℃.Wind-warm syndrome improves, and can significantly reduce coke ratio, saves coke, improves furnace processor, also can make full use of low-calorie blast furnace gas, improves the thermal efficiency, reduces coal gas diffusion, energy savings, protection environment.
Modern blast furnace generally adopts regenerative hot blast stove, is made up of regenerator and combustion chamber two parts.Work period comprises burning phase and on air.In the burning phase, the high-temperature flue gas heating checker brick that utilize gas-fired to produce change stove extremely on air then.On air then utilize checker brick that cold wind is heated, deliver to blast furnace by hot air duct again and use.Continuity and the production of considering blast furnace work are standby, 3～4 hot-blast stoves of blast furnace one general configuration.
Hot-blast stove is divided into internal combustion type, external-burning, top ignition etc. by version.
The internal combustion stove development time is longer, and combustion chamber and regenerator be with placing in the circular furnace shell, and a side everywhere.By updating, present modified internal combustion stove has overcome vault refractory brick breakage in the past to a certain extent, has fallen brick, partition wall inclination, cracking, short circuit, shortcomings such as checker brick entanglement, obstruction.But fail to tackle the problem at its root, limiting factor is more, and wherein stability of structure is very crucial.
External combustion stove is developed by internal combustion stove, and operation principle is identical with internal combustion stove, and just combustion chamber and regenerator are in respectively in two cylindrical housings, and the top of two chambers links up in a certain way.External-burning and internal combustion type structure compared are more reasonable, help overheavy firing, improve wind-warm syndrome, and shortcoming is a complex structure, and floor space is big, and steel and refractory consumption rate are many, the infrastructure investment height.
The characteristics of top combustion stove be with the vault space as the combustion chamber, cancelled sidepiece or outside combustion chamber.1978, No. 2 blast furnaces of Shoudu Iron and Steel Co took the lead in having adopted top combustion stove, and this is first large-scale top combustion stove in the world.This hot-blast stove has symmetrical configuration, and temperature range distributes rationally, take up an area of little, advantages such as small investment.
Early stage top combustion stove adopts sleeve type burner, and combustion system is premixed combustion, and flame is longer, is subjected to that the combustion space is less to be influenced, and is easy to cause localized hyperthermia, and it is violent that chamber temperature is changed, and huge thermal stress can cause damage to furnace wall.Top combustion stove after the improvement has enlarged the combustion space, has improved combustion system, has shortened the length of flame.But owing in the iron-smelting process blast furnace ironmaking is arranged not only, the fused reduction iron-smelting technology also develops rapidly in recent years, and existing top combustion stove technology can't satisfy the requirement to the iron-smelting process technology of blast furnace maximization and high wind-warm syndrome; On the other hand, even blast furnace iron-making process, because the actual blast furnace heat size that requires, rate of driving, technological process, coal gas condition etc. vary, and cause supporting with it hot-blast stove also to differ widely at aspects such as heating efficiency, gas composition, sky, gas temperature, flue-gas temperatures.Because the combustion chamber of top combustion stove is positioned at checker brick top, the combustion space is limited, if can not require the version of burner is adjusted flexibly according to actual production, the high-temperature flue gas that burning produces is easy to take place bias current, paste one-sided wall and entering checker brick, greatly reduce the service efficiency of checker brick, reduced the service life of checker brick.The high-temperature flue gas bias current also can reduce the mixing uniformity of combustion air and coal gas, causes some regional oxygen surplus and localized hyperthermia, has increased the growing amount of pollutants such as NOx, serious environment pollution.
Summary of the invention
The purpose of this utility model is to provide a kind of top combustion stove high-efficiency cyclone diffusion flame burner, is the process characteristic at top combustion stove, designs a kind of burner that can produce the eddy flow diffusion flame.Compare with premixed combustion, under the diffusion combustion condition, near the burning mixture the burner outlet, coal gas and Air mixing proportion broad are easier to constitute stable igniting thermal source, strengthen flame holding, effectively avoid taking off fire.On the other hand, eddy flow can be strengthened the mixability of air and fuel, in overheavy firing, forms length and the controllable flame of amplitude, the time of staying of significant prolongation fuel in the combustion chamber, reduces coefficient of excess air.Revolve by force and can form annular recirculating zone, thereby the root that heat energy and chemical reaction component are back to flame is strengthened the stability of flame.
Along with the continuous development of metallurgical technology, the melting and reducing technology that reaches its maturity is in the near future with the Steel Production Flow Chart based on blast furnace of overall restructuring routine.The utility model is as a kind of top combustion stove burner that hot blast is provided, because version is flexible and changeable, adaptability is strong, can be used for ironmaking technique of fusion and reduction fully, for it provides hot blast more than 1000 ℃.
The nozzle structure adjustable extent of the utility model top combustion stove high-efficiency cyclone diffusion flame burner is big, cooperates different aditus laryngis and diffusion burner, and overall structure form is succinctly various, can adapt to different working conditions fully.On the other hand, the utility model top combustion stove high-efficiency cyclone diffusion flame burner can be worked in 60%～140% scope of design conditions, working range is wide, and adaptability is good, can adjust flexibly according to the production status of high hotplate body and the working system of needs.
For realizing the purpose of the utility model top combustion stove high-efficiency cyclone diffusion flame burner, burner need comprise following structure: 1～6 combustion air is managed adapter; 1～6 coal gas is managed adapter; 1～4 combustion air circuit; 1～4 coal gas circuit; 1～10 ring combustion air spout; 1～10 ring gas port; Space gas swirl premixing chamber, its vault are circular oval or parabola shaped or stretched wire Linear Space, and the bottom is a cylindrical space; Cylindrical or truncated cone-shaped or the cylindrical aditus laryngis of hyperbolic; The diffusion burner of toroidal.Combustion air is managed adapter, coal gas and is managed adapter and manage to manage with coal gas with the combustion air of outside respectively and be connected; Combustion air circuit, coal gas circuit are taked from top to bottom: air-coal gas; Coal gas-air; Air-coal gas-air; The arrangement of coal gas-air-coal gas; The combustion air spout connects combustion air circuit and space gas swirl premixing chamber; Gas port connects coal gas circuit and space gas swirl premixing chamber; Aditus laryngis upper part space gas swirl premixing chamber, bottom are the diffusion burner of toroidal.
By flowing of control combustion air and coal gas, in top combustion stove, carry out the eddy flow diffusion combustion, the high-temperature flue gas Flow Field Distribution of generation is uniform sequential, guarantees that checker brick are heated evenly, and reduces pollutant emission.
Top combustion stove high-efficiency cyclone diffusion flame burner comprises 1～6 combustion air manages and takes over and 1～6 coal gas is managed adapter, manages to manage with coal gas with the combustion air of outside respectively to be connected.Combustion air is managed and is taken over and coal gas is managed adapter and is made of box hat and refractory material.
Top combustion stove high-efficiency cyclone diffusion flame burner comprises 1～4 combustion air circuit and 1～4 coal gas circuit.According to concrete application and process conditions, arrangement from top to bottom and quantity can adopt: air-coal gas; Coal gas-air; Air-coal gas-air; Coal gas-air-coal gas etc. are multi-form, the arrangement of most amounts, according to the actual flexible Application that requires.The spatial form of combustion air circuit and coal gas circuit is hollow cylinder or hollow truncated cone-shaped etc., is built by laying bricks or stones by refractory material to form.
Top combustion stove high-efficiency cyclone diffusion flame burner comprises 1～10 ring combustion air spout, and the quantity of every ring combustion air spout is 4～36.Horizontal direction, the angle of combustion air spout center line and space gas swirl premixing chamber radial centre lines is-90 °～+ 90 °, can control the flow direction (clockwise/counterclockwise) and the tangent line circle size of combustion air so in the horizontal direction.Vertical direction, the angle of combustion air spout center line and space gas swirl premixing chamber longitudinal center line is-90 °～+ 90 °, the flow direction (up/down) of control combustion air.Because it is bigger to the influence of the uniformity of combustion air spout distribution of air flow that combustion air is managed adapter, so quantity and position that each combustion air jet size, spacing are managed adapter according to combustion air are graded profile or symmetrical distribution.For more effective control air-flow, reduce resistance and decrease, the rotational flow strengthening diffusion combustion, the combustion air spout is trapezoidal, the combustion air that is a bit larger tham near the space gas swirl premixing chamber near the combustion air inlet of combustion air circuit exports, and the angle of trapezoidal hypotenuse and center line is controlled at 0～10 °.By flexible adjustment, to adapt to different operating modes, guarantee stability, the adequacy of burning, and the uniformity in flow field.The combustion air spout is built by laying bricks or stones by refractory material and is formed.
Top combustion stove high-efficiency cyclone diffusion flame burner comprises the gas port of 1～10 ring, and the quantity of every ring gas port is 4～36.Horizontal direction, the angle of gas port center line and space gas swirl premixing chamber radial centre lines is-90 °～+ 90 °, can control the flow direction (clockwise/counterclockwise) and the tangent line circle size of coal gas so in the horizontal direction.Vertical direction, the angle of gas port center line and space gas swirl premixing chamber longitudinal center line is-90 °～+ 90 °, the flow direction (up/down) of control coal gas.Because it is bigger to the influence of the uniformity of gas port distribution of air flow that coal gas is managed adapter, so quantity and position that each gas port size, spacing are managed adapter according to coal gas are graded profile or symmetrical distribution.For more effective control air-flow, reduce resistance and decrease, rotational flow strengthening diffusion combustion, gas port are trapezoidal, are a bit larger tham the gas exit of close space gas swirl premixing chamber near the gas inlet of coal gas circuit, and the angle of trapezoidal hypotenuse and center line is controlled at 0～10 °.By flexible adjustment, to adapt to different operating modes, guarantee stability, the adequacy of burning, and the uniformity in flow field.Gas port is built by laying bricks or stones by refractory material and is formed.
Top combustion stove high-efficiency cyclone diffusion flame burner comprises the space gas swirl premixing chamber, and its vault is circle/ellipse/parabola shaped/stretched wire Linear Space, and the bottom is a cylindrical space.This premixer is built by laying bricks or stones by refractory material and forms, and combustion air and coal gas are after spout ejection separately, and here mix on eddy flow limit in limit, beginning eddy flow diffusion combustion.
Top combustion stove high-efficiency cyclone diffusion flame burner comprises aditus laryngis, its spatial form be cylindrical or truncated cone-shaped or hyperbolic cylindrical, aditus laryngis is built by laying bricks or stones by refractory material and is formed.Through after the space gas swirl premixing chamber, combustion air and coal gas is in the further eddy flow diffusion of aditus laryngis, mixes more fully, and combustion-gas flow speeds up, for providing condition at whole combustion space generation uniform flow field.
Top combustion stove high-efficiency cyclone diffusion flame burner comprises the diffusion burner of toroidal.Speed reduces after entering this space from the high-speed rotational diffusion combustion gas of aditus laryngis ejection, but along with combustion air and the further eddy flow of coal gas mix, combustion flame transfers diffusion to by quick extension, and ignition temperature raises, and has formed the even temperature field in whole combustion chamber.
One big difficult point of hot-blast stove is the distribution that how to guarantee that the combustion chamber flow field can be uniform sequential.In actual applications, because the difference of iron-smelting process, as blast furnace ironmaking, fused reduction iron-smelting etc., operating mode is also inequality.In traditional blast furnace iron-making process, because factors such as furnace volume, rate of driving, technological process, working system, coal gas condition vary, the hot blast temperature that hot-blast stove is produced requires also fully different with air quantity, if can not adjust the version of burner flexibly, flow field in the combustion chamber is easy to occur bias current, cause the checker brick temperature distributing disproportionation even, influence the service efficiency of checker brick, the service life of reducing checker brick.Simultaneously, bias current has influenced the mixing uniformity of combustion air and coal gas, and the too high localized hyperthermia district that causes of local oxygen concentration has increased the growing amount of pollutants such as NOx, corrosion steel construction, hardware and contaminated environment.The characteristics of the utility model top combustion stove high-efficiency cyclone diffusion flame burner are exactly: the gradual change rule between the combustion air spout between connection combustion air circuit or coal gas circuit and the space gas swirl premixing chamber or form, size, quantity, Space Angle and the spout of gas port all can be adjusted flexibly, so just can be according to designing requirement, by calculating (comprising technology Calculation and computer Field Flow Numerical Simulation etc.) and experiment, determine the most rational burner structure, comprise that combustion air is managed to take over and coal gas is managed size, the quantity of adapter; The size of combustion air circuit and coal gas circuit, quantity, shape, arrangement; The size of combustion air spout and gas port, quantity, form, space angle, spout gradual change rule; Space gas swirl premixing chamber vault form and size; Aditus laryngis form and size; Combustion-chamber shape and size etc.
During the work of the utility model top combustion stove high-efficiency cyclone diffusion flame burner, combustion air and coal gas enter the space gas swirl premixing chamber from spout separately, flow to current downflow in space gas swirl premixing chamber inward turning, limit eddy flow, limit diffusion, limit burning.Swirl-flow premixed indoor at space gas, combustion air and coal gas rigidly connect and touch, and have only sub-fraction to mix and burning, have guaranteed that like this premixer's temperature can be very not high.After entering aditus laryngis, circulation area reduces, and flow velocity increases, and eddy flow strengthens, and has strengthened the mixability of combustion air and coal gas, the burning aggravation, and temperature begins to rise.After the ejection of aditus laryngis eddy flow, it is big that the space becomes, and circulation area also becomes greatly, and flow velocity reduces, and the downward eddy flow trend of flame slows down, and combustion air, coal gas and hot flue gas have still kept very strong swirling motion in the horizontal direction.This further diffusion that has just guaranteed combustion air and coal gas mixes.Because of aditus laryngis has enough spaces to the combustion chamber at checker brick top, can make coal gas realize completing combustion.In whole combustion chamber, even temperature field, flow field and pressure field have just been formed like this.Hot flue gas enters checker brick uniformly, has guaranteed that checker brick are efficiently utilized, and helps prolonging the checker brick life-span.This eddy flow diffusion combustion mode has also avoided the local combustion supporting air concentration too high, produce localized hyperthermia's phenomenon, thereby has effectively reduced the generation of pollution such as NOx and nuisance.
In sum, the major advantage of the utility model top combustion stove high-efficiency cyclone diffusion flame burner comprises:
1) is applicable to different metallurgical technology flow processs, comprises blast furnace iron-making process, ironmaking technique of fusion and reduction etc.;
2) can both flexible adaptation to different blast furnace heat sizes, rate of driving, technological process, working system, coal gas condition etc., applied widely.
3) the burner structure adjustability is strong, cooperates different aditus laryngis and diffusion burner, forms the eddy flow diffusion flame, it is abundant, even that space gas is mixed, the high-temperature flue gas Flow Field Distribution is uniform sequential, has effectively improved the service efficiency of checker brick, has prolonged the service life of checker brick.
4) working range is wide, can work in 60%～140% scope of design conditions, can well adapt to the various working systems of hot-blast stove.
5) abundant and uniform diffusion combustion avoided the too high high-temperature region that causes of local oxygen concentration, effectively controlled the generation and the discharging of pollutions such as NOx and nuisance, helps protecting environment.
6) fuel of hot-blast stove can use low-calorie single blast furnace gas, can reduce production costs energy savings.
7) adaptability to the preheat temperature of combustion air and coal gas is good, gets ready for further developing the space gas hot-blast stove that can use high temperature preheating future.
Description of drawings
Fig. 1 is a vertical direction cutaway view of the present utility model.Wherein, space gas swirl premixing chamber 1, coal gas circuit 2, coal gas manage and take over 3, gas port 4, combustion air circuit 5, combustion air manage take over 6, combustion air spout 7, aditus laryngis 8, diffusion burner 9, hot-blast outlet take over 10, regenerator upper surface 11.
Fig. 2 is a gas port horizontal cross of the present utility model.Wherein, space gas swirl premixing chamber 1, coal gas circuit 2, coal gas are managed adapter 3, gas port 4.
Fig. 3 is an air port horizontal cross of the present utility model.Wherein, space gas swirl premixing chamber 1, combustion air circuit 5, combustion air are managed adapter 6, combustion air spout 7.
Fig. 4 is a gas port enlarged drawing of the present utility model.Wherein, gas port 4.
Fig. 5 is a combustion air spout enlarged drawing of the present utility model.Wherein, the combustion air spout 7.
The specific embodiment
Fig. 1～Fig. 5 is a kind of specific embodiment of the present utility model.As seen from the figure, the utility model top combustion stove high-efficiency cyclone diffusion flame burner places the top combustion stove top, comprises that 1 combustion air is managed to take over 6; 1 coal gas is managed and is taken over 3; 1 combustion air circuit 5; 1 coal gas circuit 2; 16 on every ring, the combustion air spout 7 of totally 2 rings; 16 on every ring, the gas port 4 of totally 2 rings; Space gas swirl premixing chamber 1, its vault form are circular oval or parabola shaped or stretched wire is linear, and the lower space form is cylindrical; Form is cylindrical or truncated cone-shaped or the columniform aditus laryngis 8 of hyperbolic; The expanding diffusion burner 9 of toroidal.
Coal gas is managed and is taken over 3 and manage with the coal gas of outside and to connect, and coal gas is introduced coal gas circuit 2, and gas port 4 is connecting coal gas circuit 2 and space gas swirl premixing chamber 1.Horizontal direction, the angle of the spout center line of gas port 4 and the radial centre lines of space gas swirl premixing chamber 1 is 33 °, can control the flow direction (eddy flow counterclockwise) and the tangent line circle size of coal gas so in the horizontal direction; Vertical direction, the angle of the spout center line of gas port 4 and the longitudinal center line of space gas swirl premixing chamber 1 is-30 °, the flow direction of control coal gas is downward.Because coal gas is managed the distribution of air flow uniformity of taking over 3 pairs of gas ports 4 considerable influence is arranged, so each jet size of gas port 4, spacing should be managed and taken over 3 quantity and position and be graded profile (as Fig. 2) according to coal gas.For more effective control air-flow, reduce resistance and decrease, rotational flow strengthening diffusion combustion, gas port are trapezoidal, are a bit larger tham the gas exit of close space gas swirl premixing chamber 1 near the gas inlet of coal gas circuit 2, and angle is 10 ° (as Fig. 4).
Combustion air is managed and is taken over 6 and manage with the combustion air of outside and to connect, and combustion air is introduced combustion air circuit 5, and combustion air spout 7 is connecting combustion air circuit 5 and space gas swirl premixing chamber 1.Horizontal direction, the angle of the spout center line of combustion air spout 7 and the radial centre lines of space gas swirl premixing chamber 1 is-33 °, can control the flow direction (eddy flow clockwise) and the tangent line circle size of combustion air so in the horizontal direction; Vertical direction, the angle of the spout center line of combustion air spout 7 and the longitudinal center line of space gas swirl premixing chamber 1 is 30 °, the flow direction of control combustion air is upwards.Because combustion air is managed the distribution of air flow uniformity of taking over 6 pairs of combustion air spouts 7 considerable influence is arranged, so each jet size of combustion air spout 7, spacing should be managed and taken over 6 quantity and position and be graded profile (as Fig. 3) according to combustion air.For more effective control air-flow, reduce resistance and decrease, the rotational flow strengthening diffusion combustion, the combustion air spout is trapezoidal, and the combustion air that is a bit larger tham near space gas swirl premixing chamber 1 near the combustion air inlet of combustion air circuit 5 exports, and angle is 10 ° (as Fig. 5).
After coal gas and combustion air entered space gas swirl premixing chamber 1 respectively, mixed on eddy flow limit, limit, beginning eddy flow diffusion combustion.After entering aditus laryngis 8 from space gas swirl premixing chamber 1, the space diminishes, and eddy flow is strengthened, and the eddy flow diffusion combustion of coal gas and combustion air is strengthened, and prepares for forming uniform sequential eddy flow flow field at diffusion burner 9.After the coal gas of high-speed rotational motion and combustion air are mixing high-temperature flue gas that the burning back produces and are entering diffusion burner 9 from aditus laryngis 8, speed reduces, but still carrying out uniform sequential swirling motion, unburned is coal gas and the further here eddy flow diffusion combustion of combustion air completely, combustion flame transfers diffusion to by quick extension, ignition temperature raises, and forms uniform flow field and temperature field etc. in whole diffusion burner 9.
What the high-temperature flue gas even flow field was orderly enters regenerator through regenerator upper surface 11, for regenerator provides heat.
The utility model top combustion stove high-efficiency cyclone diffusion flame burner is applicable to metallurgy and field of energy-saving technology, and to various metallurgical technology flow processs, various operating modes can both flexible adaptation; Sufficient combustion, it is orderly to form even flow field, can significantly improve the service efficiency and the life-span of checker brick; Working range is wide; Can effectively control the generation of pollutant; Can use low-heat value gas, reduce cost, energy savings; For future development high temperature preheating space gas hot-blast stove is got ready.
The utility model top combustion stove high-efficiency cyclone diffusion flame burner has multiple embodiments, and the accompanying drawing explanation usefulness that only lays down a definition not is to restriction of the present utility model.Any the utility model mentality of designing that do not break away from does to the utility model that unsubstantiality changes, and all still belongs to scope of the present utility model.
Claims (7)
1, a kind of top combustion stove high-efficiency cyclone diffusion flame burner, be arranged in the top combustion stove top, it is characterized in that this burner comprises that combustion air is managed adapter, coal gas is managed adapter, combustion air circuit, coal gas circuit, combustion air spout, gas port; Space gas swirl premixing chamber, its vault are circular oval or parabola shaped or stretched wire Linear Space, and the bottom is a cylindrical space; Cylindrical or truncated cone-shaped or the cylindrical aditus laryngis of hyperbolic; The diffusion burner of toroidal; Combustion air is managed adapter, coal gas and is managed adapter and manage to manage with coal gas with the combustion air of outside respectively and be connected; Combustion air circuit, coal gas circuit are taked from top to bottom: air-coal gas; Coal gas-air; Air-coal gas-air; The arrangement of coal gas-air-coal gas; The combustion air spout connects combustion air circuit and space gas swirl premixing chamber; Gas port connects coal gas circuit and space gas swirl premixing chamber; Aditus laryngis upper part space gas swirl premixing chamber, bottom are the diffusion burner of toroidal.
2, burner according to claim 1 is characterized in that, described combustion air is managed and taken over is 1～6, and coal gas is managed and taken over is 1～6, is made of box hat and refractory material.
3, burner according to claim 1 is characterized in that, described combustion air circuit is 1～4, and the coal gas circuit is 1～4; The spatial form of combustion air circuit and coal gas circuit is hollow cylinder or hollow truncated cone-shaped, is built by laying bricks or stones by refractory material to form.
4, burner according to claim 1 is characterized in that, described combustion air spout is 1～10 ring, and the quantity of every ring combustion air spout is 4～36; Horizontal direction: the angle of combustion air spout center line and space gas swirl premixing chamber radial centre lines is-90 °～+ 90 °; Vertical direction: the angle of combustion air spout center line and space gas swirl premixing chamber longitudinal center line is-90 °～+ 90 °; Quantity and position that each combustion air jet size, spacing are managed adapter according to combustion air are graded profile or symmetrical distribution; The combustion air spout is trapezoidal, and the angle of trapezoidal hypotenuse and center line is controlled at 0～10 °; The combustion air spout is built by laying bricks or stones by refractory material and is formed.
5, burner according to claim 1 is characterized in that, described gas port is 1～10 ring, and the quantity of every ring gas port is 4～36; Horizontal direction, the angle of gas port center line and space gas swirl premixing chamber radial centre lines is-90 °～+ 90 °; Vertical direction, the angle of gas port center line and space gas swirl premixing chamber longitudinal center line is-90 °～+ 90 °; Quantity and position that each gas port size, spacing are managed adapter according to coal gas are graded profile or symmetrical distribution; It is trapezoidal that gas port is, and the angle of trapezoidal hypotenuse and center line is controlled at 0～10 °; Gas port is built by laying bricks or stones by refractory material and is formed.
6, burner according to claim 1 is characterized in that, described premixer is built by laying bricks or stones by refractory material and forms.
7, burner according to claim 1 is characterized in that, described aditus laryngis is built by laying bricks or stones by refractory material and formed.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201098558U CN201269526Y (en) | 2008-08-20 | 2008-08-20 | High-efficiency rotational flow diffusion type combustor of top-burning hot blast stove |
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| CNU2008201098558U CN201269526Y (en) | 2008-08-20 | 2008-08-20 | High-efficiency rotational flow diffusion type combustor of top-burning hot blast stove |
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| CN105351965A (en) * | 2015-11-25 | 2016-02-24 | 北京首钢国际工程技术有限公司 | Independent arc fitting catenary arch crown structure of top combusting type hot blast stove |
| CN106257370A (en) * | 2015-06-19 | 2016-12-28 | 株式会社Posco | Flow control device and bias current control method partially |
| WO2018082001A1 (en) * | 2016-11-04 | 2018-05-11 | 郑州安耐克实业有限公司 | Novel top-combustion hot blast stove |
| CN109402314A (en) * | 2017-08-16 | 2019-03-01 | 中冶京诚工程技术有限公司 | Top combustion type hot blast stove burner |
| CN109519920A (en) * | 2018-12-29 | 2019-03-26 | 广州龙鑫蓄热工业炉有限公司 | Combustion system and top typed heat-storage type burner |
| CN111690785A (en) * | 2019-03-11 | 2020-09-22 | 山东省冶金设计院股份有限公司 | Top combustion hot blast stove with central uniform distribution type burner |
| CN111763018A (en) * | 2019-04-02 | 2020-10-13 | 北京卡卢金热风炉技术有限公司 | Heating furnace device with burner |
| CN112191121A (en) * | 2020-09-22 | 2021-01-08 | 南京晶升能源设备有限公司 | Long brilliant stove technology gas air flue that mixes |
| CN113046506A (en) * | 2021-02-09 | 2021-06-29 | 山东省冶金设计院股份有限公司 | Top combustion hot blast stove with variable cross-section nozzle burner |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257370A (en) * | 2015-06-19 | 2016-12-28 | 株式会社Posco | Flow control device and bias current control method partially |
| CN105351965A (en) * | 2015-11-25 | 2016-02-24 | 北京首钢国际工程技术有限公司 | Independent arc fitting catenary arch crown structure of top combusting type hot blast stove |
| RU193758U1 (en) * | 2016-11-04 | 2019-11-13 | Чжэнчжоу Аннек Индастриал Ко., Лтд | UPPER HEATER OF THE NEW MODEL COMBUSTION LOCATION UP |
| CN108603660A (en) * | 2016-11-04 | 2018-09-28 | 郑州安耐克实业有限公司 | Novel top combustion hot stove |
| WO2018082001A1 (en) * | 2016-11-04 | 2018-05-11 | 郑州安耐克实业有限公司 | Novel top-combustion hot blast stove |
| CN108603660B (en) * | 2016-11-04 | 2020-01-07 | 郑州安耐克实业有限公司 | Top combustion hot blast stove |
| CN109402314A (en) * | 2017-08-16 | 2019-03-01 | 中冶京诚工程技术有限公司 | Top combustion type hot blast stove burner |
| CN109402314B (en) * | 2017-08-16 | 2024-01-16 | 中冶京诚工程技术有限公司 | Top combustion type hot blast stove burner |
| CN109519920A (en) * | 2018-12-29 | 2019-03-26 | 广州龙鑫蓄热工业炉有限公司 | Combustion system and top typed heat-storage type burner |
| CN109519920B (en) * | 2018-12-29 | 2024-04-26 | 广州龙鑫蓄热工业炉有限公司 | Combustion system and overhead heat accumulating type combustor |
| CN111690785A (en) * | 2019-03-11 | 2020-09-22 | 山东省冶金设计院股份有限公司 | Top combustion hot blast stove with central uniform distribution type burner |
| CN111690785B (en) * | 2019-03-11 | 2024-05-14 | 山东省冶金设计院股份有限公司 | Top combustion type hot blast stove with central uniformly distributed burner |
| CN111763018A (en) * | 2019-04-02 | 2020-10-13 | 北京卡卢金热风炉技术有限公司 | Heating furnace device with burner |
| CN112191121A (en) * | 2020-09-22 | 2021-01-08 | 南京晶升能源设备有限公司 | Long brilliant stove technology gas air flue that mixes |
| CN113046506A (en) * | 2021-02-09 | 2021-06-29 | 山东省冶金设计院股份有限公司 | Top combustion hot blast stove with variable cross-section nozzle burner |
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