CN203238289U - Hot-blast stove for combusting in preheating regenerator employing evenly distributed premixing nozzles in hedging and jetting manners - Google Patents
Hot-blast stove for combusting in preheating regenerator employing evenly distributed premixing nozzles in hedging and jetting manners Download PDFInfo
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- CN203238289U CN203238289U CN 201320234837 CN201320234837U CN203238289U CN 203238289 U CN203238289 U CN 203238289U CN 201320234837 CN201320234837 CN 201320234837 CN 201320234837 U CN201320234837 U CN 201320234837U CN 203238289 U CN203238289 U CN 203238289U
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Abstract
The utility model relates to a hot-blast stove for combusting in a preheating regenerator employing evenly distributed premixing nozzles in hedging and jetting manners. According to the hot-blast stove, the problems of low mixing rate, non-uniformity, low combustion intensity, low temperature, incompleteness, large space and complicated structure are effectively solved. Coal gas and air inlet pipes on a pre-combustion chamber wall body are connected with coal gas and air distribution loops; the inner ends of coal gas and air nozzles on the coal gas and air distribution loops are intersected and communicated to form V-shaped mixing nozzles; the mixing nozzles are communicated with a pre-combustion chamber inside the pre-combustion chamber wall body; a hot air outlet pipe is arranged on the pre-combustion chamber wall body; the pre-combustion chamber wall body is connected with a combustion chamber wall body; the combustion chamber wall body is connected with a wall body of the hot-blast stove in a sleeving manner; a regenerative chamber is arranged at the lower part of the combustion chamber inside the combustion chamber wall body; a grate and a support column are arranged at the lower part of the regenerative chamber; a furnace floor is arranged at the bottom of the wall body of the hot-blast stove; a heat accumulator is arranged inside the regenerative chamber; and a smoke outlet pipe and a cold air inlet pipe are arranged on a cold air chamber. The hot-blast stove has the effects of being high in efficiency, high in blast temperature, energy-saving, environment-friendly, simple in structure, and compact and stable in structure.
Description
Technical field
The hotblast stove that a kind of uniform pre-mixing nozzle that the utility model is related to blast furnace and provides high temperature blast liquidates and burns in the jet preheat heat storage.
Background technology
Current, blast funnace hot blast stove is considered to require to obtain 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, volume increase.The combination of the combustion processes that for this reason, necessary realization is optimized in hotblast stove and the heat transfer process of reinforcement.This just relates to structure, heat storage body structure and the layout of combustion unit and the tissue of air velocity distribution.Make a general survey of the various hotblast stoves of present use, its gas combustion apparatus all take coal gas mix in the combustion space with air, preheating, ignition pattern be as main, always there is the problem such as mix inequality, incomplete combustion, the bags is large, burner structure is complicated 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 large 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
For above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides the hotblast stove that a kind of uniform pre-mixing nozzle liquidates and burns in the jet preheat heat storage, 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 large and burner structure is complicated problem.
The technical scheme that the utility model solves is, the settling chamber body of wall is constituted by the spherical vault on top and the cylinder of bottom, space in the settling chamber body of wall is settling chamber, on the cylinder of settling chamber body of wall vertical its axis respectively correspondence gas inlet pipe and air intake duct are set, gas inlet pipe is connected vertical or is tilted to connect gas allocation circuit and the air of building by laying bricks or stones in the settling chamber body of wall and distribute on the circuit with air intake duct, gas allocation circuit and air distribute corresponding gasburner and the air nozzle that is evenly equipped with respectively a plurality of square-sections on the inboard ringwall of circuit, gasburner and air nozzle are corresponding up and down, the bottom of gasburner outer end and gas allocation circuit is connected, the outer end of air nozzle and air distribute the top of circuit to be connected, the inner of gasburner and air nozzle cross be communicated with V-shaped, and connect the mixing nozzle that horizontal radial is arranged, mixing nozzle UNICOM settling chamber, settling chamber body of wall middle part is provided with the hot-blast outlet pipe of vertical its axis, the inboard top inner layer cylinder wall outer side with the combustion chamber body of wall of the bottom cylinder of settling chamber body of wall is the first labyrinth seal syndeton of straight-line joint type, can realize that the eclipsed form of the unstressed effect of slip connects; Combustion chamber body of wall top cylinder body diameter is less than bottom cylinder diameter, and the middle part is the conical shell of arc surface, to avoid the stress concentration of structure; Columnar hotblast stove body of wall the connecting together through stepped the second mutual slippage shape of labyrinth seal syndeton of combustion chamber body of wall and bottom, regenerator is arranged at the bottom, combustion chamber in the body of wall of combustion chamber, fire grate and pillar stiffener are arranged at the regenerator bottom, regenerator, fire grate and pillar stiffener all place in the hotblast stove body of wall, furnace bottom is arranged at the bottom of hotblast stove body of wall, have in the regenerator from fire grate and upwards pile up heat storage to the combustion chamber, cold air chamber is the internal space of the hotblast stove body of wall on fire grate bottom and furnace bottom top, and smoke outlet tube and cold wind inlet pipe are arranged on the side wall of cold air chamber.
When implementing the utility model, coal gas and air are by the inboard uniform nozzle of distribution circuit separately in settling chamber, and from the corresponding mixing nozzle that is opened on settling chamber that connects on the inboard body of wall of settling chamber up and down, coal gas enters settling chamber along the horizontal radial direction with air after mixing nozzle mixes, after the preheating of backflow high-temperature flue gas, meeting in front, settling chamber middle part, and in liquidating, finish the quick and stable burning that it further mixes and realize part, part high-temperature flue gas after the burning and partially mixed gas enter in the heat storage in the combustion chamber under it and continue to finish combustion processes, another part upwards forms the backflow vortex and turns back downwards again, after the preheating of finishing coal gas that nozzle ejection is gone out and air mixed air-flow (real be caloic exchange process), import downwards again among the air-flow that flows downward in the opposed firing process, because of the existence of this part air-flow so that whole downward air velocity distribution becomes comparatively even.After hotblast stove adopts this burner, just efficiently solve the key issues such as low-heat value gas combustion is unstable, intensity of combustion weak, temperature of combustion is low; With the long flame combustion system that takies a large amount of combustion spaces of the burning while mixing between coal gas and air change into nozzle mix with liquidate mix, the quick and high-intensity combustion mode of backflow preheat coal gas and air mixed air-flow and premixed flow.Because the heat storage in the combustion chamber adopts taper to stack, and can also make the downward air velocity distribution that is similar to jet become the uniform air velocity distribution that enters heat storage.Adopt the mode of burning in this mixed heat accumulation body that liquidates, not only improved the completeness of burning but also dwindled the bags, and refluxed by the backflow vortex that the upward air stream that liquidates in the settling chamber forms and to realize that stablizing of flame (burning) can reach again preheating gas and air mixed air-flow again and improve the purpose of partial combustion temperature.Because after the part unreacted fuel gas flows to the heat storage that is placed in the combustion chamber, also can to a certain degree realize burning in the checker brick and the temperature of Effective Raise top checker brick has been created very favourable condition for high wind-warm syndrome is provided.Heat storage adopts the structure of checkerwork cell intercommunication, because of its pressure regulation current balance function to air-flow more intense, can Effective Raise heat storage utilization ratio and strengthen heat exchanging process, therefore the spatial altitude of regenerator also can reduce.Especially in the air-supply stage of hotblast stove, the pressure regulation current balance function 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 liquidates by multi-nozzle in settling chamber and mixes realize the liquidating steady flame of backflow preheat and high-intensity combustion, and partially mixed air-flow is burnt in the heat storage that stack the combustion chamber, accomplish 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 so 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 sectional front view of the present utility model.
Fig. 2 is A-A section sectional view among the utility model Fig. 1.
Fig. 3 is B-B section sectional view among the utility model Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
As shown in Figure 1-Figure 3, structure of the present utility model is, settling chamber body of wall 1 is constituted by the spherical vault on top and the cylinder of bottom, space in the settling chamber body of wall is settling chamber 1a, on the cylinder of settling chamber body of wall 1 vertical its axis respectively correspondence gas inlet pipe 4 and air intake duct 4a are set, gas inlet pipe is connected vertical or is tilted to connect the gas allocation circuit 5 of building by laying bricks or stones in settling chamber body of wall 1 and distribute on the circuit 5a with air with air intake duct, gas allocation circuit and air distribute corresponding gasburner 6 and the air nozzle 6a that is evenly equipped with respectively a plurality of square-sections on the inboard ringwall of circuit, gasburner and air nozzle are corresponding up and down, the bottom of gasburner outer end and gas allocation circuit is connected, the outer end of air nozzle and air distribute the top of circuit to be connected, the inner of gasburner and air nozzle cross be communicated with V-shaped, and connect the mixing nozzle 6b that horizontal radial is arranged, mixing nozzle UNICOM settling chamber, settling chamber body of wall middle part is provided with the hot-blast outlet pipe 3 of vertical its axis, the inboard top inner layer cylinder wall outer side with combustion chamber body of wall 2 of the bottom cylinder of settling chamber body of wall 1 is the first labyrinth seal syndeton 14 of straight-line joint type, can realize that the eclipsed form of the unstressed effect of slip connects; Body of wall 2 top cylinder body diameters in combustion chamber are less than bottom cylinder diameter, and the middle part is the conical shell of arc surface, to avoid the stress concentration of structure; Columnar hotblast stove body of wall 7 the connecting together through stepped the second labyrinth seal syndeton 15 mutual slippage shapes of combustion chamber body of wall 2 and bottom, regenerator 8 is arranged at the 2a bottom, combustion chamber in the body of wall of combustion chamber, fire grate 9 and pillar stiffener 9a are arranged at the regenerator bottom, regenerator, fire grate and pillar stiffener all place in the hotblast stove body of wall, furnace bottom 11 is arranged at the bottom of hotblast stove body of wall, have in the regenerator 8 from fire grate 9 and upwards pile up heat storage to the 2a of combustion chamber, cold air chamber 10 is the internal space of the hotblast stove body of wall 7 on fire grate 9 bottoms and furnace bottom 11 tops, smoke outlet tube 13 and cold wind inlet pipe 12 are arranged on the side wall of cold air chamber
Described settling chamber body of wall 1 and combustion chamber body of wall 2 consist of for building high temperature resistant 1300 ℃～1500 ℃ refractory masses on the metal shell inwall by laying bricks or stones, 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 (such as light silicious brick or the poly-light brick of high alumina) skin, and the ceramic fiber cotton of outer outside and the sprayed coating formation that is combined with each other successively.
Described gas inlet pipe 4 and air intake duct 4a build the circular passage that refractory materials (such as high alumina brick or clay brick) consists of by laying bricks or stones at inner wall of metal tube, and gas inlet pipe 4 and air intake duct 4a all distribute circuit 5a with gas allocation circuit 5 and the air that 0～30 ° angle connects respectively square-section in the settling chamber body of wall.
Described gas allocation circuit 5 inboard ringwall bottoms have more than 10 along the circumferential equally distributed gasburner 6 of circuit, air distribute the inboard ringwall of circuit 5a top have with gasburner up and down corresponding more than 10 along the circumferential equally distributed air nozzle 6a of circuit, the cross section of gasburner and air nozzle is height greater than the rectangle of width.
Interior angle α between the conical surface of the conical shell of described combustion chamber body of wall 2 and horizontal plane 〉=60 ° (what provide among the figure is 60 °).
Described hot-blast outlet pipe 3 is with high temperature resistant, the Low Creep High Alumina Bricks of stable performance or the circular passage that the andaluzite corundum brick is built formation by laying bricks or stones.
Described fire grate 9 is porous inseries that heat resisting iron is made, and places on the pillar stiffener 9a of heat resisting iron, and pillar stiffener places in the cold air chamber 10.
Described hotblast stove body of wall 7 is to build successively from top to bottom the cylinder that siliceous brick or andaluzite matter brick, High-Alumina brick, clayey brick consist of on the metal shell inwall by laying bricks or stones.
Described heat storage is the first heat storage 8a of the siliceous checker brick that are arranged in order from top to bottom, the second heat storage 8b of andaluzite high alumina checker brick, the 3rd heat storage 8c of andaluzite clay checker brick and the 4th heat storage 8d of clay checker brick consist of, the checkerwork cell of every part checker brick is the taper circular hole, on, the groove that intercommunication is arranged between the lower checkerwork cell, the first heat storage 8a is taper shape or taper type places combustion chamber 2a, the second heat storage, the 3rd heat storage and the 4th heat storage are cylindrical to be placed in the regenerator, the first heat storage 8a is siliceous checker brick, the second heat storage 8b is andaluzite high alumina checker brick, the 3rd heat storage 8c is andaluzite clay checker brick, and the 4th heat storage 8d is the clay checker brick.
Described smoke outlet tube 13 and cold wind inlet pipe 12 are the integrative-structure that links with hotblast stove body of wall 7 of building on the inner wall of metal tube that refractory materials (being generally clay brick) consists of 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.
The integrative-structure that with hotblast stove body of wall 7 link of described smoke outlet tube 13 and cold wind inlet pipe 12 for building on the inner wall of metal tube that refractory materials (being generally clay brick) consists of 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 enter respectively separately inlet pipe, enter respectively gas allocation circuit 5 and air and distribute circuit 5a, enter settling chamber through the ejection of separately nozzle by mixing nozzle, and after compiling and further mix in the mode that liquidates, the settling chamber center takes fire behind the high temperature reflux smoke pre-heating through turning back from settling chamber top, the flue gas flow that moves up and down after generation is impacted mutually along the settling chamber axis and do not finish the mixed airflow of burning, owing to be subjected to the constraint of space structure, main air-flow is to flow downward directly to enter combustion chamber 2a, a part flows to settling chamber 2 tops, turn back again from the slit flow into combustor 2a between the mixing nozzle 6b through vault, along with turning back of upper gaseous blast, the upper space of settling chamber 2 just forms one with the air velocity distribution of collar vortex structure, become the place that air-flow carries out heat and mass exchange, play the rapidly pre-warming jet-stream wind, catch fire rapidly and the combustion stablized environment of maintenance; Along with after air-flow enters the first heat storage 8a that taper among the 2a of combustion chamber stacks downwards and finishes combustion processes and produce higher temperature of combustion, flue gas enters 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, enter cold air chamber 10 after the heat exchange to be finished, and leave hotblast stove by smoke outlet tube 13.Hotblast stove enters the air-supply stage after finishing the combustion processes stage, cold-blast enters cold air chamber 10 from cold wind inlet pipe 12, enter successively in the 4th heat storage, the 3rd heat storage, the second heat storage and the first heat storage in the regenerator 8 by fire grate 9 again, and carry out with it heat exchange, progressively become hot-blast after the absorbing heat, and enter combustion chamber 2a, be sent to blast furnace by hot-blast outlet pipe 3 again.Above-mentioned combustion phases and air-supply stage alternately carry out in a hotblast stove, form periodic running status.When the hotblast stove more than two is alternately finished combustion phases 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, provides hot-blast in more stable mode to blast furnace.
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 to finish in combustion unit (settling chamber and combustion chamber) further dwindled so that finish the space of burning; Further select on this basis heat storage, normally use checker brick, can adjust wherein air current flow feature by the texture improvement of checker brick, realize in the heat storage that air-flow distributes and enhance heat transfer-heat-accumulating process uniformly.
This hotblast stove distributes air-flow by coal gas circuit and air circuit, coal gas and air nozzle radial spray through circumferential arrangement enter the mixing nozzle of settling chamber, after the preheating that is subject to the high-temperature flue gas under the settling chamber top, realize liquidating at the settling chamber center and form mixed airflow and initial burning burning, its most of air-flow enters the bags downwards and enters wherein in the heat storage of stacking and finish combustion processes, flow downward again behind the formation high temperature reflux air-flow after another part upwards burns and enter the combustion chamber, in this process, again the coal gas that ejects and the mixed airflow of air are 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 the combustion chamber of large volume, low with air mixed speed such as coal gas, 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 large and burner structure is complicated etc.
In a word, the utility model adopts compact and unique chamber structure, realize coal gas and air in nozzle preliminary mix and settling chamber in the mixing that further liquidates, and the backflow turbulent structure that forms by the air-flow that liquidates, cause the environment of reflux steady flame and high-intensity combustion, enter subsequently the combustion chamber and in the heat storage that its taper is stacked, finish combustion processes, and spray the flue gas flow that enters regenerator that lower air-flow forms current-sharing, samming, high speed because the taper stacking structure makes.Heat storage in the regenerator adopts the checker brick of minor diameter big hole pitch 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, average rate, high-heat strength and the operation of safety and stablization ground, then reach fuel saving, save investment, reduce spent air temperture and the quantity discharged of obnoxious flavour, the good result of environmental contamination reduction.
Claims (10)
1. uniform pre-mixing nozzle hotblast stove of liquidating and burning in the jet preheat heat storage, it is characterized in that, settling chamber body of wall (1) is constituted by the spherical vault on top and the cylinder of bottom, space in the settling chamber body of wall is settling chamber (1a), on the cylinder of settling chamber body of wall (1) vertical its axis respectively correspondence gas inlet pipe (4) and air intake duct (4a) are set, gas inlet pipe is connected vertical or is tilted to connect the gas allocation circuit (5) of building by laying bricks or stones in settling chamber body of wall (1) and distribute on the circuit (5a) with air with air intake duct, gas allocation circuit and air distribute corresponding gasburner (6) and the air nozzle (6a) that is evenly equipped with respectively a plurality of square-sections on the inboard ringwall of circuit, gasburner and air nozzle are corresponding up and down, the bottom of gasburner outer end and gas allocation circuit is connected, the outer end of air nozzle and air distribute the top of circuit to be connected, the inner of gasburner and air nozzle cross be communicated with V-shaped, and connect the mixing nozzle (6b) that horizontal radial is arranged, mixing nozzle UNICOM settling chamber, settling chamber body of wall middle part is provided with the hot-blast outlet pipe (3) of vertical its axis, the inboard top inner layer cylinder wall outer side with combustion chamber body of wall (2) of the bottom cylinder of settling chamber body of wall (1) is the first labyrinth seal syndeton (14) of straight-line joint type, combustion chamber body of wall (2) top cylinder body diameter is less than bottom cylinder diameter, the middle part is the conical shell of arc surface, the columnar hotblast stove body of wall (7) of combustion chamber body of wall (2) and bottom connects together through the mutual slippage shape of stepped the second labyrinth seal syndeton (15), regenerator (8) is arranged at the bottom, combustion chamber (2a) in the body of wall of combustion chamber, fire grate (9) and pillar stiffener (9a) are arranged at the regenerator bottom, regenerator, fire grate and pillar stiffener all place in the hotblast stove body of wall, furnace bottom (11) is arranged at the bottom of hotblast stove body of wall, have in the regenerator (8) from fire grate (9) and upwards pile up heat storage in combustion chamber (2a), cold air chamber (10) is the internal space of the hotblast stove body of wall (7) on fire grate (9) bottom and furnace bottom (11) top, and smoke outlet tube (13) and cold wind inlet pipe (12) are arranged on the side wall of cold air chamber.
2. the described uniform pre-mixing nozzle hotblast stove that liquidates and burn in the jet preheat heat storage according to claim 1, it is characterized in that, described settling chamber body of wall (1) and combustion chamber body of wall (2) consist of for building high temperature resistant 1300 ℃～1500 ℃ refractory masses on the metal shell inwall by laying bricks or stones, refractory masses is outer by the anti-material of the heavy internal layer of anti-material the, lightweight, and the ceramic fiber cotton of outer outside and the sprayed coating formation that is combined with each other successively.
3. the uniform pre-mixing nozzle according to claim 1 hotblast stove that liquidates and burn in the jet preheat heat storage, it is characterized in that, described gas inlet pipe (4) and air intake duct (4a) they are to build the circular passage that refractory materials consists of by laying bricks or stones at inner wall of metal tube, and gas inlet pipe (4) is connected 4a with air intake duct) all connect respectively gas allocation circuit (5) and the air distribution circuit (5a) of square-section in the settling chamber body of wall with 0～30 ° angle.
4. the uniform pre-mixing nozzle according to claim 1 hotblast stove that liquidates and burn in the jet preheat heat storage, it is characterized in that, the inboard ringwall of described gas allocation circuit (5) bottom has more than 10 along the circumferential equally distributed gasburner of circuit (6), air distribute the inboard ringwall of circuit (5a) top have with gasburner up and down corresponding more than 10 along the circumferential equally distributed air nozzle of circuit (6a), the cross section of gasburner and air nozzle is height greater than the rectangle of width.
5. the uniform pre-mixing nozzle according to claim 1 hotblast stove that liquidates and burn in the jet preheat heat storage is characterized in that the interior angle α between the conical surface of the conical shell of described combustion chamber body of wall (2) and horizontal plane 〉=60 °.
6. the uniform pre-mixing nozzle according to claim 1 hotblast stove that liquidates and burn in the jet preheat heat storage, it is characterized in that described hot-blast outlet pipe (3) is with high temperature resistant, the Low Creep High Alumina Bricks of stable performance or the circular passage that the andaluzite corundum brick is built formation by laying bricks or stones.
7. the uniform pre-mixing nozzle according to claim 1 hotblast stove that liquidates and burn in the jet preheat heat storage, it is characterized in that, described fire grate (9) is the porous insert that heat resisting iron is made, and places on the pillar stiffener (9a) of heat resisting iron, and pillar stiffener places in the cold air chamber (10).
8. the uniform pre-mixing nozzle according to claim 1 hotblast stove that liquidates and burn in the jet preheat heat storage, it is characterized in that described hotblast stove body of wall (7) is to build successively from top to bottom the cylinder that siliceous brick or andaluzite matter brick, High-Alumina brick, clayey brick consist of on the metal shell inwall by laying bricks or stones.
9. the uniform pre-mixing nozzle according to claim 1 hotblast stove that liquidates and burn in the jet preheat heat storage, it is characterized in that, described heat storage is first heat storage (8a) of the siliceous checker brick that are arranged in order from top to bottom, second heat storage (8b) of andaluzite high alumina checker brick, the 3rd heat storage (8c) of andaluzite clay checker brick and the 4th heat storage (8d) of clay checker brick consist of, the checkerwork cell of every part checker brick is the taper circular hole, on, the groove that intercommunication is arranged between the lower checkerwork cell, the first heat storage (8a) is taper shape or taper type places combustion chamber (2a), the second heat storage, the 3rd heat storage and the 4th heat storage is cylindrical places in the regenerator.
10. the uniform pre-mixing nozzle according to claim 1 hotblast stove that liquidates and burn in the jet preheat heat storage, it is characterized in that, described smoke outlet tube (13) and cold wind inlet pipe (12) are the integrative-structure that links with hotblast stove body of wall (7) of building on the inner wall of metal tube that refractory materials consists of 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 |
|---|---|---|---|
| CN 201320234837 CN203238289U (en) | 2013-05-03 | 2013-05-03 | Hot-blast stove for combusting in preheating regenerator employing evenly distributed premixing nozzles in hedging and jetting manners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320234837 CN203238289U (en) | 2013-05-03 | 2013-05-03 | Hot-blast stove for combusting in preheating regenerator employing evenly distributed premixing nozzles in hedging and jetting manners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203238289U true CN203238289U (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320234837 Expired - Fee Related CN203238289U (en) | 2013-05-03 | 2013-05-03 | Hot-blast stove for combusting in preheating regenerator employing evenly distributed premixing nozzles in hedging and jetting manners |
Country Status (1)
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| CN (1) | CN203238289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114574646A (en) * | 2022-03-15 | 2022-06-03 | 郑州豫兴热风炉科技有限公司 | Multi-rotational-flow column-flow low-nitrogen top-combustion type burner for hot blast stove |
-
2013
- 2013-05-03 CN CN 201320234837 patent/CN203238289U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114574646A (en) * | 2022-03-15 | 2022-06-03 | 郑州豫兴热风炉科技有限公司 | Multi-rotational-flow column-flow low-nitrogen top-combustion type burner for hot blast stove |
| CN114574646B (en) * | 2022-03-15 | 2023-02-07 | 郑州豫兴热风炉科技有限公司 | Multi-rotational-flow column-flow low-nitrogen top-combustion type burner for hot blast stove |
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