CN202519283U - Hot-blast stove with uniformly distributed nozzles jetting mixed hedging back flows for warm-up combustion in pre-combustion chamber - Google Patents
Hot-blast stove with uniformly distributed nozzles jetting mixed hedging back flows for warm-up combustion in pre-combustion chamber Download PDFInfo
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- CN202519283U CN202519283U CN2012201624155U CN201220162415U CN202519283U CN 202519283 U CN202519283 U CN 202519283U CN 2012201624155 U CN2012201624155 U CN 2012201624155U CN 201220162415 U CN201220162415 U CN 201220162415U CN 202519283 U CN202519283 U CN 202519283U
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 97
- 239000003034 coal gas Substances 0.000 claims abstract description 34
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 238000005338 heat storage Methods 0.000 claims description 57
- 239000011449 brick Substances 0.000 claims description 43
- 239000007921 spray Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 239000003351 stiffener Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 7
- 239000011819 refractory material Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000001172 regenerating effect Effects 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 238000010304 firing Methods 0.000 description 6
- 238000010992 reflux Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a hot-blast stove with uniformly distributed nozzle jetting mixed hedging back flows for warm-up combustion in a pre-combustion chamber, wherein problems of low mixing rate, undermixing, low intensity of combustion, low combustion temperature, incompleteness of combustion, large spaces of combustion chambers and complicated structures of combustors are effectively solved. The pre-combustion chamber is arranged in the pre-combustion chamber wall body, a coal gas and air inlet pipe on a cylinder of the pre-combustion chamber is connected with a coal gas and air distribution rotary channel, coal gas and air nozzles on the coal gas and air rotary channel are communicated with the pre-combustion chamber, the pre-combustion chamber wall body is in sleeve connection with a combustion chamber wall body, a large cylinder of the combustion wall body is provided with a hot air outlet pipe, the lower part of the combustion chamber in the large cylinder is provided with a regenerative chamber, a grate and a supporting column are arranged at the lower part of the regenerative chamber, a regenerator is arranged in the regenerative chamber, a cold air chamber is arranged at the lower part of the grate, a smoke outlet pipe and a cold air inlet pipe are arranged on the cold air chamber, and the wall body of the hot-blast stove is in sleeve connection with the combustion chamber wall body. The hot-blast stove disclosed by the utility model effectively solves the problems that combustion of low-heat value coal gas is not stable, the intensity of combustion is week, the combustion temperature is low, and the like.
Description
Technical field
The utility model relates to and is uniformly distributed with nozzle in a kind of settling chamber that is used to blast furnace and provides high temperature blast and sprays up and down and mix the backflow preheat incendiary hotblast stove that liquidates.
Background technology
Current, blast funnace hot blast stove considers to require acquisition high-performance and high benefit under the lower heat of combustion blast furnace gas from energy-saving and cost-reducing, and finally reach efficiently, the purpose of energy-saving and environmental protection, raising the output.For this reason, combustion processes of in hotblast stove, accomplish strengthening and heat transfer process efficiently, and to make it organically to combine be exactly the prerequisite that reaches above-mentioned target, this just relates to the tissue of combustion unit performance, heat storage body structure and layout and air velocity distribution.Make a general survey of the various hotblast stoves of present use; Its gas combustion apparatus all with coal gas mix in the combustion space with air, preheating, the combustion mode of catching fire be main, always there is problems such as mixing inequality, incomplete combustion, the bags are big, burner structure complicacy in this pattern; Air current composition in its combustion chamber and the regenerator misorient (application of flow velocity selection, distribution of air flow and control, eddy flow and reflux state etc.), cause that the changing features of combustion gas flowing is big in the combustion chamber, air-flow is unstable, intensity of combustion is low; Also can cause air-flow skewness in the regenerator, reduce the utilization ratio of heat-transfer effect and heat storage; The structure of its heat storage all is difficult to choose according to flow field structure and load condition with layout, thus the performance of entire effect hotblast stove and practical effect.
Summary of the invention
To above-mentioned situation; For overcoming the prior art defective; The purpose of the utility model just provides and is uniformly distributed with nozzle in a kind of settling chamber and sprays up and down and mix the backflow preheat incendiary hotblast stove that liquidates; Can effectively solve coal gas low with air mixed speed, mix inhomogeneously, intensity of combustion is low, temperature of combustion is low, incomplete combustion, the bags is big and the burner structure complicated problems.
The technical scheme that the utility model solves is; Comprise that settling chamber body of wall, settling chamber, combustion chamber body of wall, combustion chamber, gas inlet pipe, air intake duct, coal gas distribute circuit, air to distribute circuit, gasburner, air nozzle; Regenerator, heat storage; Hotblast stove body of wall, fire grate, pillar stiffener, cold air chamber, smoke outlet tube and cold wind inlet pipe, hot-blast outlet pipe; The settling chamber body of wall is that the spherical vault on top and the cylinder of bottom constitute, and the intravital space of settling chamber wall is a settling chamber, and vertical its axis has gas inlet pipe and air intake duct respectively on the cylinder of settling chamber body of wall; Gas inlet pipe and air intake duct are vertical respectively or tilt to be connected to build by laying bricks or stones at the intravital coal gas of settling chamber wall and distribute circuit and air distribution circuit; Corresponding gasburner and the air nozzle that is evenly equipped with a plurality of square-sections respectively about on the inboard ringwall of coal gas distribution circuit and air distribution circuit, gasburner horizontal radial UNICOM settling chamber, air nozzle is tilted to radially UNICOM's settling chamber; The cylinder inboard, bottom of settling chamber body of wall and top inner layer cylinder wall outer side the connecting together of combustion chamber body of wall through the mutual slip of straight-line joint type labyrinth seal syndeton; The upper end of combustion chamber body of wall is little cylinder, and the lower end is the great circle cylindrical shell, and the middle part is a conical shell; The upper and lower ends of conical shell is connected through the transition of circular arc body of wall with the great circle cylindrical shell with little cylinder respectively; The metope of great circle cylindrical shell is provided with hot-blast outlet pipe, and regenerator is arranged at the bottom of the intravital combustion chamber of heating wall, and the regenerator bottom places intravital fire grate of columnar hotblast stove wall and pillar stiffener; Have in the regenerator from fire grate and upwards pile up the heat storage to the combustion chamber; Cold air chamber is in the internal space of the hotblast stove body of wall of fire grate bottom, and smoke outlet tube and cold wind inlet pipe are arranged on the side wall of cold air chamber, connecting together through the stepped mutual slip of labyrinth seal syndeton between hotblast stove body of wall and the combustion chamber body of wall.
The utility model can be implemented in the distribution circuit inboard through separately of coal gas and air in the settling chamber and be uniformly distributed with nozzle; And the opening from the inboard body of wall of each comfortable settling chamber; Coal gas is along the horizontal radial direction and air gets into settling chamber along the radial direction that is tilted to; Meet at the settling chamber middle part after the preheating of backflow high-temperature flue gas in the mutual premix merging of completion part; And in liquidating, accomplish and further mix and the burning of fast and stable ground; The most of combustion chamber that gets into downwards under it of high-temperature flue gas after the burning; Another part upwards forms the backflow vortex and turns back downwards again, after accomplishing coal gas, air and partly-premixed air-flow preheating that nozzle ejection is gone out (real be caloic exchange process), imports downwards among the air-flow that flows downward in the opposed firing process, because of the existence of this part air-flow makes whole downward flue gas flow field become comparatively even again.After hotblast stove adopts this burner, just efficiently solve key issues such as low-heat value gas combustion instability, intensity of combustion is weak, temperature of combustion is low; With coal gas and incendiary between air while mixing take burning mass spatial long flame combustion system change into liquidate backflow preheat coal gas, air and premixed flow fast and the high-intensity combustion mode.Accomplish in view of combustion processes concentrates in the settling chamber basically, just can fully stack heat storage in the combustion chamber and effectively save the combustion space.If place the heat storage in the combustion chamber to adopt taper to stack, can also make the downward effusive air velocity distribution that is similar to become the uniform airflow flow field that gets into heat storage.Adopt this intersection mixing and the blended short burnout mode that liquidates not only to improve the incendiary completeness but also dwindled the bags, and can realize the purpose that can reach again preheating gas and air again and improve the partial combustion temperature of stablizing of flame (burning) by the backflow vortex backflow that the upward air stream that liquidates in the settling chamber forms.After if remaining unreacted fuel gas flows into the heat storage that is placed in the combustion chamber, also can to a certain degree realize in the checker brick burning and effectively improve the temperature of top checker brick, for being provided, high wind-warm syndrome created very advantageous conditions.If heat storage adopts the structure of checkerwork cell intercommunication, and is more intense because of its pressure regulation current-sharing effect to air-flow, can effectively improve the utilization ratio and enhancing heat exchanging process of heat storage, therefore the spatial altitude of regenerator also can reduce.Especially in the air-supply stage of hotblast stove, the pressure regulation current-sharing effect of heat storage is more obvious for the homogeneity effect of improving the distribution of cold wind air-flow.Therefore; For the hotblast stove that adopts other gas combustion apparatus; The utility model through nozzle arrange up and down realize to intersect mix with settling chamber in the middle part of liquidate to mix and realize liquidating steady flame of backflow preheat and high-intensity combustion; And stack heat storage in the combustion chamber accomplishing to a certain degree to improve the checker brick temperature, and realize the high duty heat transfer between heat storage and air-flow in the regenerator.So just can greatly improve the thermal property of hotblast stove, make that hotblast stove can be under the condition of lower heat of combustion coal gas, at coal gas and air all under the condition of not preheating, possessed efficient, high wind-warm syndrome, with the function of energy-conserving and environment-protective.In addition, the further simplification of structure and the compact saving that not only can bring investment cost also are the stable condition that provides the foundation of hotblast stove structure.
Description of drawings
Fig. 1 is the sectional front view of the utility model.
Fig. 2 is an A-A portion sectional view among the utility model Fig. 1.
Fig. 3 is a B-B portion sectional view among the utility model Fig. 1.
Embodiment
Elaborate below in conjunction with the embodiment of accompanying drawing to the utility model.
Like Fig. 1, Fig. 2 and shown in Figure 3; The utility model comprises that settling chamber body of wall 1, settling chamber 2, combustion chamber body of wall 1a, combustion chamber 2a, gas inlet pipe 3, air intake duct 4, coal gas distribute circuit 5a, air to distribute circuit 5b, gasburner 6a, air nozzle 6b; Regenerator 8, heat storage; Hotblast stove body of wall 7, fire grate 9, pillar stiffener 9a, cold air chamber 10, smoke outlet tube 13 and cold wind inlet pipe 12, hot-blast outlet pipe 14; Settling chamber body of wall 1 is that the spherical vault on top and the cylinder of bottom constitute; The intravital space of settling chamber wall is a settling chamber 2; Vertical its axis has gas inlet pipe 3 and air intake duct 4 respectively on the cylinder of settling chamber body of wall 1; Gas inlet pipe and air intake duct are vertical respectively or tilt to be connected coal gas distribution circuit 5a and the air distribution circuit 5b that builds by laying bricks or stones settling chamber body of wall 1 in; Corresponding gasburner 6a and the air nozzle 6b that is evenly equipped with a plurality of square-sections respectively about on the inboard ringwall of coal gas distribution circuit and air distribution circuit, gasburner horizontal radial UNICOM settling chamber, air nozzle is tilted to radially UNICOM's settling chamber; The cylinder inboard, bottom of settling chamber body of wall 1 and the top inner layer cylinder wall outer side of combustion chamber body of wall 1a connect together through straight-line joint type labyrinth seal syndeton 15 mutual slips, and straight-line joint type labyrinth seal syndeton 15 can realize that the eclipsed form of this unstressed effect connects; The upper end of combustion chamber body of wall 1a is little cylinder; The lower end is the great circle cylindrical shell, and the middle part is a conical shell, and the upper and lower ends of conical shell is connected through the transition of circular arc body of wall with the great circle cylindrical shell with little cylinder respectively; To avoid the stress concentration of structure; The metope of great circle cylindrical shell is provided with hot-blast outlet pipe 14, and regenerator 8 is arranged at the bottom of the intravital combustion chamber 2a of heating wall, and fire grate 9 and the pillar stiffener 9a that places in the columnar hotblast stove body of wall 7 arranged at the regenerator bottom; Have in the regenerator 8 from fire grate 9 and upwards pile up the heat storage to the 2a of combustion chamber; Cold air chamber 10 is in the internal space of the hotblast stove body of wall 7 of fire grate 9 bottoms, smoke outlet tube 13 and cold wind inlet pipe 12 is arranged, connecting together through the stepped mutual slip of labyrinth seal syndeton 15a between hotblast stove body of wall 7 and the combustion chamber body of wall 1a on the side wall of cold air chamber.
Described settling chamber body of wall 1 is that the refractory masses of building high temperature resistant (1300 ℃～1500 ℃) on the metal shell inwall by laying bricks or stones constitutes with combustion chamber body of wall 1a; Resistant to elevated temperatures refractory masses is by the anti-material of heavy (Low Creep High Alumina Bricks or andaluzite high alumina brick) internal layer, the anti-material of lightweight (gathering light brick like light silicious brick or high alumina) skin, and the ceramic fiber of outer outside is cotton and sprayed coating is combined formation; Described gas inlet pipe 3 is on inner wall of metal tube, to build the circular passage that refractory materials (like high alumina brick or clay brick) constitutes by laying bricks or stones with air intake duct 4; Gas inlet pipe 3 places the top of air intake duct 4, and gas inlet pipe 3 and air intake duct 4 all are connected the coal gas that is arranged on the intravital square-section of settling chamber wall respectively with 0～30 ° angle and distribute circuit 5a and air distribution circuit 5b; Described coal gas distributes the inboard ringwall of circuit 5a bottom to have 10 with the circumferential equally distributed gasburner 6a of upper edge circuit; Air distribute the inboard ringwall of circuit 5b top have with corresponding up and down 10 of gasburner with the circumferential equally distributed air nozzle 6b of upper edge circuit; The opening section of gasburner 6a and air nozzle 6b is the rectangle of height greater than width; Gasburner 6a horizontal radial is opened on the ringwall of settling chamber 2, air nozzle 6b with the updip angle radial opening of 0 ゜～30 ゜ on the ringwall of settling chamber 2; The conical surface of the conical shell of described combustion chamber body of wall 1a and the interior angle between horizontal plane are less than or equal to 60 ° (what provide among the figure is 60 °); Described hot-blast outlet pipe 14 is that the refractory materials (like Low Creep High Alumina Bricks, andaluzite corundum brick etc.) with high temperature resistant and stable performance is built by laying bricks or stones and formed; Described fire grate 9 is porous inseries of being processed by heat resisting iron, places on the pillar stiffener 9a that heat resisting iron processes, and pillar stiffener places in the cold air chamber 10; Described hotblast stove body of wall 7 is on the metal shell inwall, to build the cylinder that refractory materials (being respectively siliceous brick or andaluzite matter brick, high alumina matter brick, clay matter brick from top to bottom) constitutes by laying bricks or stones; Described heat storage is checker brick; Be to be made up of the first heat storage 8a that is arranged in order from top to bottom, the second heat storage 8b, the 3rd heat storage 8c and the 4th heat storage 8d, the first heat storage 8a is siliceous checker brick, and the second heat storage 8b is andaluzite high alumina checker brick; The 3rd heat storage 8c is andaluzite clay checker brick; The 4th heat storage 8d is the clay checker brick, and the checkerwork cell of checker brick is the taper circular hole, and the groove of intercommunication is arranged between checkerwork cell and the checkerwork cell; The first heat storage 8a is taper shape or taper type places combustion chamber 2a, the cylindrical regenerator that places of second heat storage, the 3rd heat storage and the 4th heat storage; Described smoke outlet tube 13 and cold wind inlet pipe 12 the integrative-structure that links with hotblast stove body of wall 7 for building on the inner wall of metal tube that refractory materials (being generally clay brick) constitutes by laying bricks or stones; Hotblast stove body of wall 7 is fixed together with discoidal furnace bottom 11; Be provided with groined type groove joist steel in the furnace bottom; With the stability of reinforcing structure, be fixed with the pillar stiffener 9a that places fire grate 9 bottoms on the furnace bottom.
When using the utility model; After coal gas and air get into inlet pipe separately respectively, distribute circuit 5a and air to distribute circuit 5b from getting into coal gas up and down respectively, warp separately nozzle and mix with interleaved mode in settling chamber; Behind the high temperature reflux smoke pre-heating, compile and mode mixed firing to liquidate at the settling chamber center; The mobile of fortune up and down flue gas flow after the burning after generation is impacted along the settling chamber axis each other, owing to receive the constraint of space structure, main air-flow is to flow downward directly to get into combustion chamber 2a; A part flows to settling chamber 2 tops; Turn back from the slit flow into combustor 2a between gasburner 6a and the air nozzle 6b through vault, along with turning back of last gaseous blast, the upper space of settling chamber 2 just forms the air velocity distribution of a band collar vortex structure again; Become the place that air-flow carries out the caloic exchange, play the rapidly pre-warming jet-stream wind, catch fire rapidly and keep combustion stablized environment; Along with air-flow gets into combustion chamber 2a downwards; After the first heat storage 8a that taper is stacked accomplishes combustion processes and produces higher temperature of combustion; Flue gas gets into the second heat storage 8b, the 3rd heat storage 8c and the 4th heat storage 8d in the regenerator 8 successively with equally distributed flow field state; Wait to get into after accomplishing heat exchange cold air chamber 10, and leave hotblast stove through smoke outlet tube 13.Hotblast stove gets into the air-supply stage after accomplishing the combustion processes stage; Cold-blast gets into cold air chamber 10 from cold wind inlet pipe 12; Get into successively in the 4th heat storage, the 3rd heat storage, second heat storage and first heat storage in the regenerator 8 through fire grate 9 again, and carry out heat exchange with it, absorb heat and progressively become hot-blast afterwards; And get into combustion chamber 2a, be sent to blast furnace through hot-blast outlet pipe 14 again.Above-mentioned combustionphase and air-supply stage alternately carry out in a hotblast stove, form periodic running status.When the hotblast stove more than two is alternately accomplished combustionphase with the stage of air-supply, can realize continuously carrying hot-blast to blast furnace.Usually hotblast stove is that three or all the people present form one continuously to the hot blast stove system of blast furnace air-supply, to blast furnace hot-blast is provided with stable manner more.
From the above; Pattern for air-flow mixed firing in the combustion chamber; Key be mix rapidly and uniformly, backflow preheat and opposed firing promptly makes combustion processes be able in combustion unit (settling chamber and combustion chamber), accomplish, make that accomplishing the incendiary space is further dwindled; Further select heat storage on this basis, normally use checker brick, can adjust air current flow characteristic wherein, realize that uniform airflow distributes and enhance heat transfer-heat-accumulating process in the heat storage through the texture improvement of checker brick.
This hotblast stove distributes air-flow by coal gas circuit and air circuit; Nozzle radial spray through circumferential arrangement gets into settling chamber; Air-flow is realized at the settling chamber center liquidating in mixing each other; And form high-temperature flue gas at mutual opposed firing, and it is most of to get into bags downwards and gets in the heat storage of stacking wherein, and another part upwards forms to flow downward behind the high temperature reflux air-flow again and gets into the combustion chamber; In this process, again coal gas and the air draught that ejects carried out preheating, to strengthen and stable combustion processes of carrying out fast.Such mixed firing process just can effectively overcome coal gas and the air problems that mixed combustion mode occurs easily in big volumetrical combustion chamber; Low like coal gas with air mixed speed, mix inhomogeneously, and the intensity of combustion that causes thus is low, temperature of combustion is low, the bags of incomplete combustion and needs is big and burner structure complicacy etc.
In a word; The utility model adopts compact and unique chamber structure; Realize that coal gas and air intersect to mix with liquidating and mix in settling chamber, and, cause the environment of steady flame of backflow and high-intensity combustion by the backflow turbulent structure of the air-flow formation that liquidates; Get into the combustion chamber subsequently and in the heat storage that its taper is stacked, accomplish combustion processes, and spray the flue gas flow that downstream forms current-sharing, samming, high speed entering regenerator because of taper stacking structure makes.Heat storage in the regenerator adopts the novel checker brick of small dia big hole pitch and checkerwork cell and checkerwork cell intercommunication, and air-flow distributes and enhancing air-flow heat exchanging process with it so that further adjust.Use the hotblast stove of this structure can effectively realize efficient, the high temperature of hotblast stove, all speed, high-heat strength and operations of safety and stablization ground, reach fuel saving then, practice thrift investment, reduce the good result of spent air temp and discharge of harmful gases amount, minimizing environmental pollution.
Claims (9)
1. being uniformly distributed with nozzle in the settling chamber sprays up and down and mixes the backflow preheat incendiary hotblast stove that liquidates; Comprise that settling chamber body of wall (1), settling chamber (2), combustion chamber body of wall (1a), combustion chamber (2a), gas inlet pipe (3), air intake duct (4), coal gas distribute circuit (5a), air to distribute circuit (5b), gasburner (6a), air nozzle (6b); Regenerator (8), heat storage; Hotblast stove body of wall (7), fire grate (9), pillar stiffener (9a), cold air chamber (10), smoke outlet tube (13) and cold wind inlet pipe (12), hot-blast outlet pipe (14); It is characterized in that; Settling chamber body of wall (1) is that the spherical vault on top and the cylinder of bottom constitute; The intravital space of settling chamber wall is settling chamber (2); Vertical its axis has gas inlet pipe (3) and air intake duct (4) respectively on the cylinder of settling chamber body of wall (1); Gas inlet pipe and air intake duct are vertical respectively or tilt to be connected the coal gas of building by laying bricks or stones settling chamber body of wall (1) in and distribute circuit (5a) and air distribution circuit (5b); Corresponding gasburner (6a) and the air nozzle (6b) that is evenly equipped with a plurality of square-sections respectively about on the inboard ringwall of coal gas distribution circuit and air distribution circuit, gasburner horizontal radial UNICOM settling chamber, air nozzle is tilted to radially UNICOM's settling chamber; The cylinder inboard, bottom of settling chamber body of wall (1) and top inner layer cylinder wall outer side the connecting together of combustion chamber body of wall (1a) through the mutual slip of straight-line joint type labyrinth seal syndeton (15); The upper end of combustion chamber body of wall (1a) is little cylinder, and the lower end is the great circle cylindrical shell, and the middle part is a conical shell; The upper and lower ends of conical shell is connected through the transition of circular arc body of wall with the great circle cylindrical shell with little cylinder respectively; The metope of great circle cylindrical shell is provided with hot-blast outlet pipe (14), and regenerator (8) is arranged at the bottom of the intravital combustion chamber of heating wall (2a), and fire grate (9) and the pillar stiffener (9a) that places in the columnar hotblast stove body of wall (7) arranged at the regenerator bottom; Have in the regenerator (8) from fire grate (9) and upwards pile up the heat storage in combustion chamber (2a); Cold air chamber (10) is in the internal space of the hotblast stove body of wall (7) of fire grate (9) bottom, and smoke outlet tube (13) and cold wind inlet pipe (12) are arranged on the side wall of cold air chamber, connecting together through the mutual slip of stepped labyrinth seal syndeton (15a) between hotblast stove body of wall (7) and the combustion chamber body of wall (1a).
2. being uniformly distributed with nozzle in the settling chamber according to claim 1 sprays up and down and mixes the backflow preheat incendiary hotblast stove that liquidates; It is characterized in that; Described settling chamber body of wall (1) and combustion chamber body of wall (1a) constitute for building resistant to elevated temperatures refractory masses on the metal shell inwall by laying bricks or stones; Resistant to elevated temperatures refractory masses is outer by the heavy internal layer of anti-material the, the anti-material of lightweight, and the ceramic fiber of outer outside is cotton and sprayed coating is combined formation.
3. being uniformly distributed with nozzle in the settling chamber according to claim 1 sprays up and down and mixes the backflow preheat incendiary hotblast stove that liquidates; It is characterized in that; Described gas inlet pipe (3) and air intake duct (4) are on inner wall of metal tube, to build the circular passage that refractory materials constitutes by laying bricks or stones; Gas inlet pipe (3) places the top of air intake duct (4), and gas inlet pipe (3) and air intake duct (4) all are connected the coal gas that is arranged on the intravital square-section of settling chamber wall respectively with 0～30 ° angle and distribute circuit (5a) and air distribution circuit (5b).
4. being uniformly distributed with nozzle in the settling chamber according to claim 1 sprays up and down and mixes the backflow preheat incendiary hotblast stove that liquidates; It is characterized in that; Described coal gas distributes the inboard ringwall of circuit (5a) bottom to have 10 with the circumferential equally distributed gasburner of upper edge circuit (6a); Air distribute the inboard ringwall of circuit (5b) top have with corresponding up and down 10 of gasburner with the circumferential equally distributed air nozzle of upper edge circuit (6b); The opening section of gasburner (6a) and air nozzle (6b) is the rectangle of height greater than width; Gasburner (6a) horizontal radial is opened on the ringwall of settling chamber (2), air nozzle (6b) with the updip angle radial opening of 0 ゜～30 ゜ on the ringwall of settling chamber (2).
5. be uniformly distributed with nozzle in the settling chamber according to claim 1 and spray up and down and mix the backflow preheat incendiary hotblast stove that liquidates, it is characterized in that the conical surface and the interior angle between horizontal plane of the conical shell of described combustion chamber body of wall (1a) are less than or equal to 60 °.
6. being uniformly distributed with nozzle in the settling chamber according to claim 1 sprays up and down and mixes the backflow preheat incendiary hotblast stove that liquidates; It is characterized in that; Described fire grate (9) is the porous insert of being processed by heat resisting iron; Place on the pillar stiffener (9a) that heat resisting iron processes, pillar stiffener places in the cold air chamber (10).
7. be uniformly distributed with nozzle in the settling chamber according to claim 1 and spray up and down and mix the backflow preheat incendiary hotblast stove that liquidates, it is characterized in that described hotblast stove body of wall (7) is on the metal shell inwall, to build the cylinder that refractory materials constitutes by laying bricks or stones.
8. being uniformly distributed with nozzle in the settling chamber according to claim 1 sprays up and down and mixes the backflow preheat incendiary hotblast stove that liquidates; It is characterized in that described heat storage is checker brick, is to be made up of first heat storage (8a) that is arranged in order from top to bottom, second heat storage (8b), the 3rd heat storage (8c) and the 4th heat storage (8d); First heat storage (8a) is siliceous checker brick; Second heat storage (8b) is andaluzite high alumina checker brick, and the 3rd heat storage (8c) is andaluzite clay checker brick, and the 4th heat storage (8d) is the clay checker brick; The checkerwork cell of checker brick is the taper circular hole; The groove that intercommunication is arranged between checkerwork cell and the checkerwork cell, first heat storage (8a) are taper shape or taper type places combustion chamber (2a), second heat storage, the 3rd heat storage and the cylindrical regenerator that places of the 4th heat storage.
9. being uniformly distributed with nozzle in the settling chamber according to claim 1 sprays up and down and mixes the backflow preheat incendiary hotblast stove that liquidates; It is characterized in that; Described smoke outlet tube (13) and cold wind inlet pipe (12) the integrative-structure that links with hotblast stove body of wall (7) for building that refractory materials constitutes on the inner wall of metal tube by laying bricks or stones; Hotblast stove body of wall (7) is fixed together with discoidal furnace bottom (11); Be provided with groined type groove joist steel in the furnace bottom, be fixed with the pillar stiffener (9a) that places fire grate (9) bottom on the furnace bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201624155U CN202519283U (en) | 2012-04-17 | 2012-04-17 | Hot-blast stove with uniformly distributed nozzles jetting mixed hedging back flows for warm-up combustion in pre-combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201624155U CN202519283U (en) | 2012-04-17 | 2012-04-17 | Hot-blast stove with uniformly distributed nozzles jetting mixed hedging back flows for warm-up combustion in pre-combustion chamber |
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| CN202519283U true CN202519283U (en) | 2012-11-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435079A (en) * | 2016-12-07 | 2017-02-22 | 魏晓辉 | Full-time combustion heat exchange furnace |
| CN108774657A (en) * | 2018-07-02 | 2018-11-09 | 郑州釜鼎热能技术有限公司 | A kind of multiinjector mixes by force the continuous high temperature hot-blast stove of burning and board-like compact heat exchange combination |
-
2012
- 2012-04-17 CN CN2012201624155U patent/CN202519283U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435079A (en) * | 2016-12-07 | 2017-02-22 | 魏晓辉 | Full-time combustion heat exchange furnace |
| CN106435079B (en) * | 2016-12-07 | 2018-07-27 | 魏晓辉 | A kind of full-time combustion heat-exchange stove |
| CN108774657A (en) * | 2018-07-02 | 2018-11-09 | 郑州釜鼎热能技术有限公司 | A kind of multiinjector mixes by force the continuous high temperature hot-blast stove of burning and board-like compact heat exchange combination |
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