CN203385194U - Porous medium smoke hot blast stove capable of combusting low-grade fuel - Google Patents

Porous medium smoke hot blast stove capable of combusting low-grade fuel Download PDF

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Publication number
CN203385194U
CN203385194U CN201320459999.7U CN201320459999U CN203385194U CN 203385194 U CN203385194 U CN 203385194U CN 201320459999 U CN201320459999 U CN 201320459999U CN 203385194 U CN203385194 U CN 203385194U
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CN
China
Prior art keywords
porous media
flue gas
combustion
heating furnace
air heating
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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 - Fee Related
Application number
CN201320459999.7U
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Chinese (zh)
Inventor
李卫杰
秦凤华
沈小军
杨进
徐少春
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Wisdri Wuhan Wis Industrial Furnace Co Ltd
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Wisdri Wuhan Wis Industrial Furnace Co Ltd
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Priority to CN201320459999.7U priority Critical patent/CN203385194U/en
Application granted granted Critical
Publication of CN203385194U publication Critical patent/CN203385194U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a porous medium smoke hot blast stove capable of combusting low-grade fuel. The porous medium smoke hot blast stove comprises a burner system, an ignition system (3) and a stove body system. The burner system comprises a combustible gas pipeline (4), a combustion-supporting gas pipeline (1) and a burner body (6). The stove body system comprises a stove shell (7), a hearth front section (8), a porous medium part (9) and a hearth rear section (10), wherein the porous medium part (9) is arranged on the middle section of the stove shell (7). The ignition system (3) is arranged in the hearth front section (8). Smoke generated by combustion of the burner body (6) enters the area of the porous medium part (9) to finish surface combustion. The porous medium smoke hot blast stove capable of combusting the low-grade fuel has the advantages of being efficient, environmentally friendly and safe and saving energy, meanwhile, achieves effective use of byproduct low-heating-value gas and byproduct organic waste gas and saves excellent energy.

Description

A kind of porous media flue gas air heating furnace of burning inferior fuel
Technical field
The utility model relates to the industrial furnace technology field, more particularly, relates to a kind of porous media flue gas air heating furnace of burning inferior fuel.
Background technology
Have more flue gas air heating furnace in the industrial enterprises such as metallurgy, chemical industry, machinery, the fuel gas such as coal gas, organic exhaust gas are burnt in flue gas air heating furnace, produce hot flue gas.The hot flue gas that the flue gas air heating furnace burning produces is fed in the equipment such as waste heat boiler, heat exchanger and carries out heat exchange, realizes effective utilization of the energy.
Due to lower to the requirement of flue-gas temperature in " flue gas air heating furnace-waste heat boiler/heat exchanger " system, generally " flue gas air heating furnace-waste heat boiler " system flue-gas temperature is below 1000 ℃, individual cases can reach 1500 ℃, and general " flue gas air heating furnace-heat exchanger " system flue-gas temperature is below 800 ℃.Based on above-mentioned situation, the inferior fuels such as most flue gas air heating furnace Fuel Selection low-heat value gas, organic exhaust gas.In the occasion that does not have inferior fuel, have to select exotic fuels, as natural gas, coke-stove gas etc., in the high-temperature flue gas that needs to produce to the exotic fuels burning, mix cryogenic gas to be mixed to get the flue gas of suitable temperature.
For the flue gas air heating furnace that uses the inferior fuels such as low-heat value gas, organic exhaust gas, because combustible component in combustion gas is lower, often there are the burning drawbacks such as pollutant load height of catching fire in difficulty, incomplete combustion, flue gas in flue gas air heating furnace.
The utility model content
The technical problems to be solved in the utility model is, a kind of porous media flue gas air heating furnace of burning inferior fuel is provided.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of porous media flue gas air heating furnace of burning inferior fuel, comprise combustion nozzle system, ignition system and system of bf body;
Described combustion nozzle system comprises combustible gas pipeline, combustion-supporting air pipe and burner body, and described combustible gas pipeline is connected with described burner body respectively with combustion-supporting air pipe; Described system of bf body comprises furnace shell, burner hearth leading portion, porous media parts and burner hearth back segment, and described porous media parts are arranged on described furnace shell stage casing; Described ignition system is arranged in described burner hearth leading portion; The flue gas that described burner body burning produces enters the porous media component area, completes surface combustion.
In the porous media flue gas air heating furnace of burning inferior fuel described in the utility model, described ignition system is high-grade fuel burner or high temperature resistance silk.
In the porous media flue gas air heating furnace of burning inferior fuel described in the utility model, described porous media unit type is Inorganic Non-metallic Materials or high temperature resistant nickel-bass alloy material.
In the porous media flue gas air heating furnace of burning inferior fuel described in the utility model, described Inorganic Non-metallic Materials is aluminium oxide, titanium oxide, carborundum or mullite.
In the porous media flue gas air heating furnace of burning inferior fuel described in the utility model, described porous media components interior structure is ceramic foam structure, ceramic honeycomb, ceramic sieve aperture structure, metallic fiber structure, particle or bead filling structure.
In the porous media flue gas air heating furnace of burning inferior fuel described in the utility model, described combustible gas pipeline is provided with the combustible gas valve.
In the porous media flue gas air heating furnace of burning inferior fuel described in the utility model, described combustion-supporting air pipe is provided with combustion-supporting air valve.
In the porous media flue gas air heating furnace of burning inferior fuel described in the utility model, described furnace shell is square or cylindrical shape.
Implement the porous media flue gas air heating furnace of burning inferior fuel of the present utility model, there is following beneficial effect:
(1) flue gas air heating furnace arranges the porous media parts, the fully contact mixing in porous media of not combustion composition in flue gas, residue oxygen, realize further burning in porous media surface combustion mode, improved the after-flame degree of fuel, more efficient, energy-saving and environmental protection.
(2) inferior fuels such as blast furnace gas, coal gas of converter, producer gas, mixed gas, organic exhaust gas are applied to the flue gas air heating furnace burning, realize effective utilization of by-product low-heat value gas, by-product organic exhaust gas, save high-grade energy.
(3) the porous media flue gas air heating furnace system of burning inferior fuel is simple, low cost of manufacture, and production stability is good.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the porous media flue gas air heating furnace of the utility model burning inferior fuel.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.
As shown in Figure 1, the porous media flue gas air heating furnace of burning inferior fuel of the present utility model comprises combustion nozzle system, ignition system 3 and system of bf body.
Combustion nozzle system comprises combustible gas pipeline 4, combustion-supporting air pipe 1 and burner body 6, and combustible gas pipeline 4 is connected with burner body 6 respectively with combustion-supporting air pipe 1.On combustible gas pipeline 4, combustible gas valve 5 can be set, on combustion-supporting air pipe 1, combustion-supporting air valve 2 can be set.Combustible gas can adopt the low-heat value gas such as coal gas of converter, blast furnace gas, producer gas, mixed gas, the organic exhaust gas that also can adopt various production processes to produce.Combustion-supporting gas can adopt oxygen denuded air, normal air, oxygen-enriched air, contain oxygen waste gas etc.Combustible gas and combustion-supporting gas pass into respectively in burner body 6, then by ignition system 3, light.Complete burning to a certain degree in burner body 6 combustion chambers.
Ignition system 3 can be high-grade fuel burner or high temperature resistance silk.The high-grade fuel burner further can select high-grade fuel igniter burner, the normal open flame combustion nozzle of high-grade fuel etc. to use the small-power burner of high-grade fuel.High-grade fuel can be liquefied petroleum gas, natural gas, coke-stove gas etc.The effect of ignition system 3 is that the burning in burner body 6 realizes igniting and steady flame for inferior fuel.
System of bf body comprises furnace shell 7, burner hearth leading portion 8, porous media parts 9 and burner hearth back segment 10.Furnace shell 7 is the shapes such as square or cylindrical shape.Burner hearth leading portion 8 is positioned at the leading portion of furnace shell 7, and porous media parts 9 are arranged on furnace shell 7 stage casings, and burner hearth back segment 10 is positioned at the back segment of furnace shell 7.Ignition system 3 is arranged in burner hearth leading portion 8.
Porous media parts 9 materials can, for Inorganic Non-metallic Materials such as aluminium oxide, zinc oxide, carborundum, mullites, can be also high temperature resistant nickel-bass alloy material.Porous media parts 9 internal structures can, for ceramic foam structure, ceramic honeycomb, ceramic sieve aperture structure, metallic fiber structure etc., can be also particle or bead obturator.
Combustible gas, combustion-supporting gas complete burning to a certain degree at burner body 6 combustion chambers, burner hearth leading portion 8, and the flue gas of generation is through porous media, and the fully contact mixing in porous media of the not combustion composition in flue gas, residue oxygen, realize further burning.Flue gas will reduce greatly through combustible component, residue oxygen wherein after porous media Surface Contact burning.The flue gas flowed out from porous media parts 9 feeds waste heat boiler or heat exchanger and realizes the heat exchange utilization through burner hearth back segment 10, flue.
Burner body 6 in the utility model completes the main burning of fuel with diffusion combustion mode.Not combustion composition, residue oxygen that burner body 6 burnings produce in flue gas fully mix contact in the high temperature porous media, in the surface combustion mode, further burn.Through combustible component, residue oxygen in the flue gas of burner body 6 diffusion combustions and porous media surface combustion generation, greatly reduce, Gas phase Smoke is to cleaning.The existence of porous media parts 9 has promoted the fuel after-flame on the one hand, and the high temperature porous media can also play steady flame effect simultaneously, has strengthened the security of burning.
The porous media flue gas air heating furnace of the utility model burning inferior fuel possesses efficiently, energy-saving and environmental protection, safety characteristics, the utility model flue gas air heating furnace can be applied to the inferior fuels such as blast furnace gas, coal gas of converter, producer gas, mixed gas, organic exhaust gas the flue gas air heating furnace burning, realize effective utilization of by-product low-heat value gas, by-product organic exhaust gas, save high-grade energy, the utility model flue gas air heating furnace system is simple, low cost of manufacture, production stability is good.
The above is described embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.

Claims (8)

1. the porous media flue gas air heating furnace of a burning inferior fuel, is characterized in that, comprises combustion nozzle system, ignition system (3) and system of bf body;
Described combustion nozzle system comprises combustible gas pipeline (4), combustion-supporting air pipe (1) and burner body (6), and described combustible gas pipeline (4) is connected with described burner body (6) respectively with combustion-supporting air pipe (1); Described system of bf body comprises furnace shell (7), burner hearth leading portion (8), porous media parts (9) and burner hearth back segment (10), and described porous media parts (9) are arranged on described furnace shell (7) stage casing; Described ignition system (3) is arranged in described burner hearth leading portion (8); The flue gas that described burner body (6) burning produces enters porous media parts (9) zone, completes surface combustion.
2. the porous media flue gas air heating furnace of burning inferior fuel according to claim 1, is characterized in that, described ignition system (3) is high-grade fuel burner or high temperature resistance silk.
3. the porous media flue gas air heating furnace of burning inferior fuel according to claim 1, is characterized in that, described porous media parts (9) type is Inorganic Non-metallic Materials or high temperature resistant nickel-bass alloy material.
4. the porous media flue gas air heating furnace of burning inferior fuel according to claim 3, is characterized in that, described Inorganic Non-metallic Materials is aluminium oxide, titanium oxide, carborundum or mullite.
5. the porous media flue gas air heating furnace of burning inferior fuel according to claim 1; it is characterized in that, described porous media parts (9) internal structure is ceramic foam structure, ceramic honeycomb, ceramic sieve aperture structure, metallic fiber structure, particle or bead filling structure.
6. the porous media flue gas air heating furnace of burning inferior fuel according to claim 1, is characterized in that, described combustible gas pipeline (4) is provided with combustible gas valve (5).
7. the porous media flue gas air heating furnace of burning inferior fuel according to claim 1, is characterized in that, described combustion-supporting air pipe (1) is provided with combustion-supporting air valve (2).
8. the porous media flue gas air heating furnace of burning inferior fuel according to claim 1, is characterized in that, described furnace shell (7) is square or cylindrical shape.
CN201320459999.7U 2013-07-30 2013-07-30 Porous medium smoke hot blast stove capable of combusting low-grade fuel Expired - Fee Related CN203385194U (en)

Priority Applications (1)

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CN201320459999.7U CN203385194U (en) 2013-07-30 2013-07-30 Porous medium smoke hot blast stove capable of combusting low-grade fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320459999.7U CN203385194U (en) 2013-07-30 2013-07-30 Porous medium smoke hot blast stove capable of combusting low-grade fuel

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CN203385194U true CN203385194U (en) 2014-01-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103363660A (en) * 2013-07-30 2013-10-23 中冶南方(武汉)威仕工业炉有限公司 Porous media flue gas hot air furnace for burning inferior fuel
CN106556005A (en) * 2016-11-21 2017-04-05 中国五环工程有限公司 The burning utilization of low heat value fixed gas and oxygen-enriched combusting method
CN111810947A (en) * 2020-06-30 2020-10-23 武汉科技大学 High-temperature industrial porous medium combustion system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103363660A (en) * 2013-07-30 2013-10-23 中冶南方(武汉)威仕工业炉有限公司 Porous media flue gas hot air furnace for burning inferior fuel
CN106556005A (en) * 2016-11-21 2017-04-05 中国五环工程有限公司 The burning utilization of low heat value fixed gas and oxygen-enriched combusting method
CN106556005B (en) * 2016-11-21 2019-03-15 中国五环工程有限公司 The burning utilization of low heat value fixed gas and oxygen-enriched combusting method
CN111810947A (en) * 2020-06-30 2020-10-23 武汉科技大学 High-temperature industrial porous medium combustion system

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C14 Grant of patent or utility model
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140108

Termination date: 20140730

EXPY Termination of patent right or utility model