CN203653596U - Staged mixed combustion hot-air furnace with annularly and uniformly distributed coal gas and air nozzles - Google Patents
Staged mixed combustion hot-air furnace with annularly and uniformly distributed coal gas and air nozzles Download PDFInfo
- Publication number
- CN203653596U CN203653596U CN201320653620.6U CN201320653620U CN203653596U CN 203653596 U CN203653596 U CN 203653596U CN 201320653620 U CN201320653620 U CN 201320653620U CN 203653596 U CN203653596 U CN 203653596U
- Authority
- CN
- China
- Prior art keywords
- air
- wall
- coal gas
- gas
- annular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 56
- 239000003034 coal gas Substances 0.000 title claims abstract description 46
- 238000002156 mixing Methods 0.000 claims abstract description 27
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 239000011449 brick Substances 0.000 claims description 43
- 238000005338 heat storage Methods 0.000 claims description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- 239000004575 stone Substances 0.000 claims description 11
- 238000007363 ring formation reaction Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 230000009970 fire resistant effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000003351 stiffener Substances 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 3
- 208000011580 syndromic disease Diseases 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Landscapes
- Air Supply (AREA)
Abstract
The utility model relates to a staged mixed combustion hot-air furnace with annularly and uniformly distributed coal gas and air nozzles, and is used for solving the problems that the mixing of coal gas and air is low in rate and is non-uniform and the combustion intensity is low. The structure of the staged mixed combustion hot-air furnace is as follows: a combustion supporting ceramic porous body is arranged in a combustion chamber, a combustion chamber wall body and a combustor wall body at the lower part of the combustion chamber wall body are connected into one body, a coal gas inlet pipe and an air inlet pipe of the combustor wall body are respectively lain in a coal gas distributing annular way and an air distributing annular way, coal gas and air spray nozzle passages are formed in inner-side annular walls of the coal gas and air distributing annular ways, gas flow blocking annular rings are uniformly distributed at an upper opening of a coal gas and air premixing annular way, a hot air outlet pipe is arranged on the combustor wall body, the inner side of the lower part of the combustor wall body is in sealed connection with the outer side of an upper inner-layer cylindrical wall body of a heat accumulation chamber wall body through a ladder sewn labyrinth, a porous heat accumulator is arranged in a heat accumulation chamber, and a flue gas outlet pipe and a cold air inlet pipe are arranged on a cooling air chamber wall body between the heat accumulation chamber wall body and the bottom of the furnace. The staged mixed combustion hot-air furnace has the advantages that fuel is saved, the temperature of waste gas is lowered, and the emission of harmful gases is lowered.
Description
Technical field
The utility model relates to a kind of hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing that is used to blast furnace that high temperature blast is provided.
Background technology
Current, blast funnace hot blast stove is considered to require under lower heat of combustion blast furnace gas, to obtain high-performance and high wind-warm syndrome from energy-saving and cost-reducing, and finally reach efficiently, the object of energy-saving and environmental protection, volume increase.For this reason, in hotblast stove, must realize the combustion processes stove internal procedure that combines with the heat transfer process of strengthening of optimizing.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 current use, its gas combustion apparatus all take coal gas mix in 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; And air current composition misorient (application of flow velocity selection, distribution of air flow and control, eddy flow and reflux state etc.) in combustion chamber and regenerator, cause that in combustion chamber, the changing features of combustion gas flowing is large, air-flow is unstable, intensity of combustion is low, and then cause air-flow skewness in regenerator, reduce the utilization ratio of heat-transfer effect and heat storage; Because the structure of heat storage is all 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 prior art defect, the object of the utility model is just to provide a kind of hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing, 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, comprise combustion chamber body of wall, combustion chamber, ceramic porous article, hot-blast outlet pipe, burner body of wall, gas inlet pipe, air intake duct, gas allocation circuit and air distribute circuit, combustion chamber body of wall is spherical vault shape, its inner conical is stacked with combustion-supporting ceramic porous article, the cylindric burner body of wall of combustion chamber body of wall and its underpart is connected, space in burner body of wall is a part for regenerator, on the cylinder of burner body of wall, vertical its axis correspondence is furnished with gas inlet pipe and air intake duct, gas inlet pipe and air intake duct are vertical or tilt to be connected on the gas allocation circuit and air distribution circuit of building by laying bricks or stones in burner body of wall respectively, gasburner passage and the air nozzle passage of the square-section of the annular uniform some amount of difference on the inner side ringwall of gas allocation circuit and air distribution circuit, gasburner passage is divided into gasburner passage, lower gasburner passage, enter respectively the outer side wall in coal gas and air pre-mixing cyclization road with horizontal tilt and horizontal radial, air nozzle passage leaves after the inner side ringwall of air distribution circuit, turnover upwards vertically enters the bottom in coal gas and air pre-mixing cyclization road, coal gas and air pre-mixing cyclization road are trapezoid cross section, upper opening, opening part stops ring along the uniform air-flow in upper surface of burner ringwall, on burner body of wall, on a part of body of wall of gas allocation circuit place height location, be provided with the hot-blast outlet pipe of vertical its axis, gas allocation circuit is the imperfect annulus of breakaway-element, the outside of the top inner layer cylinder body of wall of the lower inside of burner body of wall and regenerator body of wall is through ladder seam labyrinth seal syndeton, connecting together of slip mutually, regenerator body of wall lower horizontal is provided with the tabular fire grate of porous that supports heat storage, in regenerator, have from fire grate and upwards pile up the porous regenerator body being formed by checker brick or refractory ball to burner upper surface, internal space between regenerator body of wall and the furnace bottom of fire grate bottom forms cold air chamber, on cold air chamber's body of wall, have with it and communicate, and the vertically smoke outlet tube of its axis and cold wind inlet pipe, cold air chamber's body of wall is the extension of cylindric regenerator body of wall, furnace bottom forms the end cap of regenerator body of wall.
The utility model can effectively realize hotblast stove efficient, high temperature, average rate, high-heat strength and safety and stablization move, then reach fuel saving, save the quantity discharged of investing, reduce spent air temperture and obnoxious flavour, the good result that reduces environmental pollution, be the innovation on hotblast stove, have good economic and social benefit.
Accompanying drawing explanation
Fig. 1 is sectional front view of the present utility model.
Fig. 2 is A-A sectional view in the utility model Fig. 1.
Fig. 3 is B-B sectional view in the utility model Fig. 1.
Fig. 4 is C-C sectional view in the utility model Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, the utility model comprises combustion chamber body of wall 1a, combustion chamber 2, ceramic porous article 11, hot-blast outlet pipe 17, burner body of wall 1b, gas inlet pipe 3, air intake duct 4, gas allocation circuit 5 and air distribute circuit 6, combustion chamber body of wall 1a is spherical vault shape, its inner conical is stacked with combustion-supporting ceramic porous article 11, the cylindric burner body of wall 1b of combustion chamber body of wall 1a and its underpart is connected, space in burner body of wall 1b is a part for regenerator 10, on the cylinder of burner body of wall 1b, vertical its axis correspondence is furnished with gas inlet pipe 3 and air intake duct 4, gas inlet pipe 3 and air intake duct 4 are vertical or tilt to be connected on the gas allocation circuit 5 of building by laying bricks or stones in burner body of wall and air distribution circuit 6 respectively, gasburner passage 7 and the air nozzle passage 8 of the square-section of the annular uniform some amount of difference on the inner side ringwall of gas allocation circuit 5 and air distribution circuit 6, gasburner passage is divided into gasburner passage 7a, lower gasburner passage 7b, enter respectively the outer side wall in coal gas and air pre-mixing cyclization road 9 with horizontal tilt and horizontal radial, air nozzle passage 8 leaves after the inner side ringwall of air distribution circuit 6, turnover upwards vertically enters the bottom in coal gas and air pre-mixing cyclization road 9, coal gas and air pre-mixing cyclization road 9 are trapezoid cross section, upper opening, opening part stops ring 9a along the uniform air-flow in upper surface of burner ringwall, on burner body of wall 1b, on a part of body of wall of gas allocation circuit 5 place height location, be provided with the hot-blast outlet pipe 17 of vertical its axis, the imperfect annulus that gas allocation circuit 5 is breakaway-element, the outside of the top inner layer cylinder body of wall of the lower inside of burner body of wall 1b and regenerator body of wall 1c is through ladder seam labyrinth seal syndeton 18, connecting together of slip mutually, regenerator body of wall 1c lower horizontal is provided with the tabular fire grate 13 of porous that supports heat storage 12, in regenerator 10, have from fire grate and upwards pile up the porous regenerator body 12 being formed by checker brick or refractory ball to burner upper surface, internal space between regenerator body of wall 1c and the furnace bottom 1d of fire grate 13 bottoms forms cold air chamber 14, on cold air chamber's body of wall, have with it and communicate, and the vertically smoke outlet tube 16 of its axis and cold wind inlet pipe 15, cold air chamber's body of wall is the extension of cylindric regenerator body of wall, furnace bottom forms the end cap of regenerator body of wall.
Described combustion chamber body of wall 1a and burner body of wall 1b be on metal shell inwall, build by laying bricks or stones high temperature resistant 1300 ℃～1500 ℃ refractory masses form, refractory masses is by the heavy Low Creep High Alumina Bricks of resistance to material or andaluzite high alumina brick internal layer, the poly-light brick skin of the lightweight high alumina of resistance to material, and ceramic fiber cotton and the spray coating structure of outer outside are combined formation, its inner conical is stacked combustion-supporting ceramic porous article 11, with the heat storage checker brick checkerwork cell intercommunication of bottom.
Described gas inlet pipe 3 and air intake duct 4 are the circular passages of building fire-resistant high alumina brick or clay brick formation on inner wall of metal tube by laying bricks or stones, gas inlet pipe 3 air intake ducts 4 are separately positioned on top and the bottom of burner cylindrical shell, and gas inlet pipe 3 is all connected respectively and is arranged on the gas allocation circuit 5 of the square-section in burner body of wall 1b and the outside ringwall of air distribution circuit 6 with the angle of 0～30 ° with air intake duct 4.
Described gas allocation circuit 5 ringwall tops, inner side and lower part two rings are evenly arranged lower gasburner passage 7b and the upper gasburner passage 7a of some amount, and on the external wall of the access of difference horizontal radial and horizontal tilt access coal gas and air mixed circuit 9; Air distributes circuit 6 ringwall tops, inner side to have the equally distributed air nozzle passage 8 of annular, peripheral of the some amount corresponding with gasburner passage, and its cross section is fan-shaped or rectangle, and accesses vertically upward the bottom of coal gas and air mixed circuit 9.
Described coal gas and air mixed circuit 9 are arranged on the upper end of combustion chamber body of wall 1b, be the annular groove that cross section is the upper opening of inverted trapezoidal, its opening part is evenly equipped with along the upper surface of burner ringwall the air-flow being formed by heat-shock resistance refractory material laying and stops ring 9a.
Described regenerator body of wall 1c builds respectively from top to bottom the cylinder that fire-resistant siliceous brick or andaluzite matter brick, High-Alumina brick, clayey brick form by laying bricks or stones on metal shell inwall.
Described porous regenerator body 12 is that the first heat storage 12a being made up of siliceous checker brick, the second heat storage 12b being made up of andaluzite high alumina checker brick being arranged in order from top to bottom and the 3rd heat storage 12c being made up of andaluzite clay checker brick form, the checkerwork cell of each heat storage checker brick is taper circular hole, has the groove of intercommunication between checkerwork cell and checkerwork cell.
Described smoke outlet tube 16 and cold wind inlet pipe 15 form for building fire-resistant undercloak on inner wall of metal tube by laying bricks or stones, and be connected with regenerator bottom body of wall 1c, regenerator body of wall 1c and discoidal furnace bottom 1d are fixed together, and are provided with the groined type groove joist steel of reinforcing structure stability in furnace bottom; Described fire grate 13 is porous inseries of being made up of heat resisting iron, is placed on the pillar stiffener that heat resisting iron makes, and pillar stiffener is fixed on furnace bottom, is placed in cold air chamber 14.
While implementing the utility model, in burner, coal gas and air are drawn uniform lower coal gas jets passage (7a) and air nozzle passage (8) by distribution circuit (5 and 6) inner side separately, after coal gas and bottom, air pre-mixing cyclization road (9) quadrature hybrid, enter this circuit, in up process, mixed airflow is drawn with gas allocation circuit top and is had the top gas flue 7b at certain level inclination angle to liquidate and mixes, and enters combustion chamber (2) after the mutual mixing that completes this step; Such premixed flow (or half premixed flow) just becomes and has certain swirl strength air upflow, completes combustion processes in the ceramic porous article (11) of taper turning back to enter in being deposited in combustion chamber after the preheating of backflow high-temperature flue gas; Most of high-temperature flue gas after burning enters downwards in heat storage (12), and a part enters backflow flue gas region (the backflow flow field that air-flow forms in up and exhumation process) and in order to realize, up premixed flow carried out preheating and made its ignition; Because the effect of the existence of this part reflux airflow and initial swirl strength makes whole downward air velocity distribution be easy to become comparatively even.Hotblast stove adopts after this flow burning mode, just efficiently solves the key issues such as low-heat value gas combustion is unstable, intensity of combustion weak, temperature of combustion is low; The combustion system that takies a large amount of combustion spaces burning while mixing between coal gas and air is changed into the mode of the burning of this multi-nozzle orthogonal hierarchical mixing, annular groove swirl jet and backflow preheat, and the application of the combustion-supporting porous insert in combustion chamber, not only improve the completeness of burning but also dwindled the bags, and be in the backflow vortex in combustion-supporting ceramic porous article by the up part forming of turning back of air-flow, can realize the object that can reach again strengthening preheating coal gas and air pre-mixing air-flow and improve partial combustion temperature of stablizing of flame (burning).Because combustion processes completes in combustion-supporting ceramic porous article (11), thereby can effectively improve the temperature (no better than temperature of combustion) of combustion-supporting ceramic porous article (11) and the first heat storage (12a), for providing high wind-warm syndrome to create very favourable condition.If the heat storage in regenerator adopts the structure of checkerwork cell intercommunication or adopts refractory ball to pile up, because of its pressure regulation current balance function to air-flow more intense, can effectively improve the utilization ratio of heat storage 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 adopting the hotblast stove of other gas combustion apparatus, the utility model is realized the steady flame of backflow preheat and high-intensity combustion in quick premix, combustion-supporting porous insert by multi-nozzle classification quadrature hybrid, and in even heat storage, air-flow distributes and realizes the high duty heat transfer in regenerator.So just can greatly improve the thermal property of hotblast stove, make the 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, possess efficient, high wind-warm syndrome, function with energy-conserving and environment-protective.In addition, the further simplification of structure and the compact saving that not only can bring investment cost, be also the stable condition that provides the foundation of hotblast stove structure.
The utility model adopts under spherical vault combustion chamber annular burner structure is set, because coal gas mixes with multithread thigh orthogonal hierarchical with air nozzle annular is uniform, realize coal gas and air and complete mixing process in coal gas and air mixed circuit, and the backflow turbulent structure of the convolution forming by spray on the eddy flow of mixed gas and exhumation process, cause the environment of reflux steady flame and high-intensity combustion, enter subsequently in the combustion-supporting ceramic porous article of the taper stacking being stacked in combustion chamber and complete combustion processes.Because the heat storage in the lower regenerator of combustion-supporting ceramic porous article and its all adopts the wide grid brick of piling up side seam of minor diameter big hole pitch and checkerwork cell and checkerwork cell intercommunication, can further adjust air-flow distribution and enhancing air-flow heat exchanging process with it.Using the hotblast stove of this structure can effectively realize efficient, the high temperature of hotblast stove, average rate, high-heat strength and safety and stablization moves, then reach fuel saving, save the quantity discharged of investing, reduce spent air temperture and obnoxious flavour, the good result that reduces environmental pollution, be the innovation on hotblast stove, have good economic and social benefit.
Claims (8)
1. the hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing, comprise combustion chamber body of wall (1a), combustion chamber (2), ceramic porous article (11), hot-blast outlet pipe (17), burner body of wall (1b), gas inlet pipe (3), air intake duct (4), gas allocation circuit (5) and air distribute circuit (6), it is characterized in that, combustion chamber body of wall (1a) is spherical vault shape, its inner conical is stacked with combustion-supporting ceramic porous article (11), the cylindric burner body of wall (1b) of combustion chamber body of wall (1a) and its underpart is connected, space in burner body of wall (1b) is a part for regenerator (10), on the cylinder of burner body of wall (1b), vertical its axis correspondence is furnished with gas inlet pipe (3) and air intake duct (4), gas inlet pipe (3) and air intake duct (4) are vertical or tilt to be connected on the gas allocation circuit (5) of building by laying bricks or stones in burner body of wall and air distribution circuit (6) respectively, gasburner passage (7) and the air nozzle passage (8) of the square-section of the annular uniform some amount of difference on the inner side ringwall of gas allocation circuit (5) and air distribution circuit (6), gasburner passage is divided into gasburner passage (7a), lower gasburner passage (7b), enter respectively the outer side wall in coal gas and air pre-mixing cyclization road (9) with horizontal tilt and horizontal radial, air nozzle passage (8) leaves after the inner side ringwall of air distribution circuit (6), turnover upwards vertically enters the bottom in coal gas and air pre-mixing cyclization road (9), coal gas and air pre-mixing cyclization road (9) are trapezoid cross section, upper opening, opening part stops ring (9a) along the uniform air-flow in upper surface of burner ringwall, on burner body of wall (1b), on a part of body of wall of gas allocation circuit (5) place height location, be provided with the hot-blast outlet pipe (17) of vertical its axis, the imperfect annulus that gas allocation circuit (5) is breakaway-element, the outside of the top inner layer cylinder body of wall of the lower inside of burner body of wall (1b) and regenerator body of wall (1c) is through ladder seam labyrinth seal syndeton (18), connecting together of slip mutually, regenerator body of wall (1c) lower horizontal is provided with the tabular fire grate (13) of porous that supports heat storage (12), in regenerator (10), have from fire grate and upwards pile up the porous regenerator body (12) being formed by checker brick or refractory ball to burner upper surface, internal space between regenerator body of wall (1c) and the furnace bottom (1d) of fire grate (13) bottom forms cold air chamber (14), on cold air chamber's body of wall, have with it and communicate, and the vertically smoke outlet tube of its axis (16) and cold wind inlet pipe (15), cold air chamber's body of wall is the extension of cylindric regenerator body of wall, furnace bottom forms the end cap of regenerator body of wall.
2. the hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing according to claim 1 is characterized in that, described combustion chamber body of wall (1a) and burner body of wall (1b) are for building the refractory masses formation of high temperature resistant 1300 ℃～1500 ℃ by laying bricks or stones on metal shell inwall, refractory masses is by the heavy Low Creep High Alumina Bricks of resistance to material or andaluzite high alumina brick internal layer, the lightweight high alumina of resistance to material gathers light brick skin, and ceramic fiber cotton and the spray coating structure of outer outside are combined formation, its inner conical is stacked combustion-supporting ceramic porous article (11), heat storage checker brick checkerwork cell intercommunication with bottom.
3. the hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing according to claim 1, it is characterized in that, described gas inlet pipe (3) and air intake duct (4) are the circular passages of building fire-resistant high alumina brick or clay brick formation on inner wall of metal tube by laying bricks or stones, gas inlet pipe (3) air intake duct (4) is separately positioned on top and the bottom of burner cylindrical shell, gas inlet pipe (3) is all connected respectively and is arranged on the gas allocation circuit (5) of the square-section in burner body of wall (1b) and the outside ringwall of air distribution circuit (6) with the angle of 0～30 ° with air intake duct (4).
4. the hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing according to claim 1, it is characterized in that, described gas allocation circuit (5) ringwall top, inner side and lower part two rings are evenly arranged lower gasburner passage (7b) and the upper gasburner passage (7a) of some amount, and on the external wall of the access of difference horizontal radial and tilt access coal gas and air mixed circuit (9); Air distributes ringwall top, circuit (6) inner side to have the equally distributed air nozzle passage of annular, peripheral (8) of the some amount corresponding with gasburner passage, its cross section is fan-shaped or rectangle, and accesses vertically upward the bottom of coal gas and air mixed circuit (9).
5. the hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing according to claim 1, it is characterized in that, described coal gas and air mixed circuit (9) are arranged on the upper end of combustion chamber body of wall (1b), be the annular groove that cross section is the upper opening of inverted trapezoidal, its opening part is evenly equipped with the air-flow being formed by heat-shock resistance refractory material laying and stops ring (9a) along the upper surface of burner ringwall.
6. the hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing according to claim 1, it is characterized in that, described regenerator body of wall (1c) is on metal shell inwall, to build respectively from top to bottom the cylinder that fire-resistant siliceous brick or andaluzite matter brick, High-Alumina brick, clayey brick form by laying bricks or stones.
7. the hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing according to claim 1, it is characterized in that, described porous regenerator body (12) is that the first heat storage (12a) being made up of siliceous checker brick, the second heat storage (12b) being made up of andaluzite high alumina checker brick being arranged in order from top to bottom and the 3rd heat storage (12c) being made up of andaluzite clay checker brick form, the checkerwork cell of each heat storage checker brick is taper circular hole, has the groove of intercommunication between checkerwork cell and checkerwork cell.
8. the hotblast stove with the uniform coal gas of annular and the burning of air nozzle stepped mixing according to claim 1, it is characterized in that, described smoke outlet tube (16) and cold wind inlet pipe (15) form for building fire-resistant undercloak on inner wall of metal tube by laying bricks or stones, and be connected with regenerator bottom body of wall (1c), regenerator body of wall (1c) is fixed together with discoidal furnace bottom (1d), is provided with the groined type groove joist steel of reinforcing structure stability in furnace bottom; Described fire grate (13) is the porous insert of being made up of heat resisting iron, is placed on the pillar stiffener that heat resisting iron makes, and pillar stiffener is fixed on furnace bottom, is placed in cold air chamber (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320653620.6U CN203653596U (en) | 2013-10-23 | 2013-10-23 | Staged mixed combustion hot-air furnace with annularly and uniformly distributed coal gas and air nozzles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320653620.6U CN203653596U (en) | 2013-10-23 | 2013-10-23 | Staged mixed combustion hot-air furnace with annularly and uniformly distributed coal gas and air nozzles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203653596U true CN203653596U (en) | 2014-06-18 |
Family
ID=50920008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320653620.6U Expired - Lifetime CN203653596U (en) | 2013-10-23 | 2013-10-23 | Staged mixed combustion hot-air furnace with annularly and uniformly distributed coal gas and air nozzles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203653596U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509055A (en) * | 2015-12-24 | 2016-04-20 | 山东义升环保设备有限公司 | All-weather windproof gas diffusion burner |
| CN105650624A (en) * | 2016-02-01 | 2016-06-08 | 陈维汉 | Hot-blast stove for classification premixed combustion and flow equalizing heat transfer of gas and air |
-
2013
- 2013-10-23 CN CN201320653620.6U patent/CN203653596U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509055A (en) * | 2015-12-24 | 2016-04-20 | 山东义升环保设备有限公司 | All-weather windproof gas diffusion burner |
| CN105650624A (en) * | 2016-02-01 | 2016-06-08 | 陈维汉 | Hot-blast stove for classification premixed combustion and flow equalizing heat transfer of gas and air |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105650624B (en) | A kind of coal gas and air classification premixed combustion and the hot-blast stove for spreading heat | |
| CN103484588B (en) | Top combustion type hot air furnace arranging annular flameless combustion device below arch roof of combustion chamber | |
| CN202415585U (en) | Hot-blast stove for spraying mixed coal gas and air in loop from uniformly-distributed spray nozzles to form reflow for combusting | |
| CN203653595U (en) | Hot-blast stove with high-speed swirl premixed heat storage self-preheating combustion device | |
| CN102829471A (en) | Flameless combustion device for pre-mixing and up-injecting gas and air in rotational flow manner in annular channel | |
| CN203569130U (en) | Cyclone inner mixing rectifying upper spraying backflow heat accumulator combustion hot blast stove | |
| CN101382286B (en) | Air flow circle alternating and equalization injection combustor for stabilizing flame by pre-mixing | |
| CN203517788U (en) | Porous body burning combustor of remixing coal gas whirl flow with premix gas | |
| CN102494343B (en) | Combustion device for rotational flow mixed combustion by spraying air above uniformly distributed gas jets in loop | |
| CN103900084A (en) | Turbulent combustor allowing premixed gas flow to force flue gas to flow back for preheating combustion | |
| CN203360477U (en) | Hot blast stove adopting coal gas and air orthogonal jetting and mixing and porous body for combustion supporting | |
| CN202415584U (en) | Hot-blast stove for mixing gas with air and spraying from evenly distributed nozzles to form reverse-flow preheating combustion | |
| CN102719584A (en) | Hot blast heater realizing preheated combustion of horizontal spraying heat accumulator of premixed air flow of gas and air | |
| CN203653596U (en) | Staged mixed combustion hot-air furnace with annularly and uniformly distributed coal gas and air nozzles | |
| CN103740880B (en) | High-velocity burner for self-preheating of rotational flow and back flow in premixed airflow heat accumulator | |
| CN102766713A (en) | Air heating furnace with nozzles in pre-burning chamber for reflowing preheating burning by opposed jetting and mixing | |
| CN204254614U (en) | Gas-air premix sprays the backflow preheat staged combustion device that vault jet guides | |
| CN203215674U (en) | Combustor with built-in hot air pipe and combustion in nozzle orthogonal jet mixed heat accumulator | |
| CN202415583U (en) | Hot-blast stove with upwards spraying air and rotational-flow mixed combusting apparatus and coal gas nozzles uniformly distributed in ring channel | |
| CN203653598U (en) | Hot-blast stove for impact remixed combustion of coal gas spiral flow and premixed gas | |
| CN202808853U (en) | Hot-blast stove for realizing combustion in heat-retaining mass via up-and-down injecting, hedging and mixing of nozzles in pre-combustion chamber | |
| CN202519283U (en) | Hot-blast stove with uniformly distributed nozzles jetting mixed hedging back flows for warm-up combustion in pre-combustion chamber | |
| CN104805246B (en) | Flow equalizing hot blast heater with premix air flow nozzle interconnection and air supply flow curved flowing | |
| CN204550645U (en) | A kind of hotblast stove of samming current-sharing of coal gas premixed flow convolution burning | |
| CN203474830U (en) | Hot-blast stove for jet mixing of gas and air by circularly and uniformly distributed nozzles inside combustion chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210401 Address after: Metallurgy Avenue, Yangzhai Town, Guangshui City, Suizhou City, Hubei Province 432700 Patentee after: Hubei Sino New Material Technology Co.,Ltd. Address before: Room 1108, Zhenghua building, 56 Huayuan Road, Zhengzhou, Henan 450003 Patentee before: Chen Weihan |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |