CN105509073B - The method of blast furnace gas catalytic combustion device and its pure burning of blast furnace gas - Google Patents
The method of blast furnace gas catalytic combustion device and its pure burning of blast furnace gas Download PDFInfo
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- CN105509073B CN105509073B CN201511035482.5A CN201511035482A CN105509073B CN 105509073 B CN105509073 B CN 105509073B CN 201511035482 A CN201511035482 A CN 201511035482A CN 105509073 B CN105509073 B CN 105509073B
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- blast furnace
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The method that the present invention discloses a kind of pure burning of blast furnace gas catalytic combustion device and its blast furnace gas.Dirty blast furnace gas at the top of from blast furnace out is cooled after entering the hot switching path of secondary coolers.Supplement water is flowed on filter cloth through supplementing water pipe, then is flowed into double U isolated tube back segments.Calcium lime powder in quick lime tank passes through electronic rotation valve, is launched from launching to manage onto fluid bed downwards；Fall on again in the white lime water of double U isolated tube back segments.Dirty blast furnace gas enters from the pipeline below double U isolated tubes leading portions, through the white lime water of double U isolated tubes back segments, makes white lime boiling water.The calcium lime powder of fluid bed is then passed through, sour gas and water vapour are removed.Ammonia removes nitric oxide.Sack cleaner and electrostatic precipitator remove dust.Then enter premixer by axial flow blower, enter back into the burning zone of air plasma flame or gas heating blast furnace gas catalytic burner, be ignited.Air supports blast furnace gas combustion in the oxygen-enriched burning zone that enters.
Description
Technical field：
The present invention relates to a kind of blast furnace gas catalytic combustion device and its method for the pure burning of blast furnace gas.
Background technology：
The content of carbon monoxide accounts for 25%, also has a small amount of hydrogen and methane gas in the fuel gas of blast furnace gas.It is high
Producer gas carbon dioxide accounts for 15%, nitrogen and accounts for 55%.Because the content of fuel gas in blast furnace gas is low, sprayed from nozzle
It is ignited in the air that blast furnace gas can not be at normal temperatures.So will be with the coke-stove gas or coal gas of converter of fuel gas content
After mixing, lighted after being sprayed in air that could at normal temperatures from nozzle.But blast furnace gas and coke-stove gas or converter coal
The mixed calorific value of gas is not high, not high for the temperature of the air before preheated hot air stove heat；It is and burnt caused by coke oven
Coal gas of converter caused by producer gas or converter is simultaneously few, have no way dispensing whole blast furnace gas, can only dispensing half blast furnace
Coal gas, so second half blast furnace gas have to be arranged to high-altitude.Carbon monoxide content in coke-stove gas and coal gas of converter is very high, category
In high heating value combustion gas, if fuel gas with low heat value will be become by being mixed with blast furnace gas, with this fuel gas with low heat value burning boiler, produce
The temperature of water vapour be not reach minimum steam temperature value used in steam worm generator, it is necessary to more exotic fuels
Boiler water vapour not up to standard is further heated.Coke-stove gas and coal gas of converter belong to high heating value combustion gas, in steel industry
In have many purposes；Such as：Steel billet heat blows the combustion gas that slag flame uses when pricking, thin plate heating is cold to prick the combustion gas used, in blast furnace
Hot-blast stove in the high heating value combustion gas that uses.Blast furnace gas pure burning is a world-famous puzzle, it is necessary to which a man of parts cracks this
One problem.
The content of the invention：
Blast furnace gas catalytic combustion device structure of the present invention is as follows：Temperature at the top of from blast furnace out is 80~150
Dirty blast furnace gas between DEG C enters the first order hot switching path and second level hot switching path of a secondary coolers
After be cooled.Then sulfur dioxide gas and hydrogen chloride gas, then quick lime are removed by white lime water wet desulphurization device
The further scrubbing CO_2 gas of dried bean noodles method devulcanizer and hydrogen chloride gas while also remove water vapour.By ammonia denitration
Device removes nitric oxide gas.The structure of white lime water wet desulphurization device is as follows：Filled on the extra heavy pipe above double U isolated tubes back segments
There is the perhaps lacunary filter cloth of band, filter cloth can allow gas to pass through but can hinder passing through for water.In double U isolated tubes back segments
Water level is less than extra heavy pipe, and supplement water passes through on the supplement water pipe in the extra heavy pipe side wall above double U isolated tubes back segments and supplement water pipe
Motorized adjustment water valve is flowed on filter cloth, then is flowed into from filter cloth in double U isolated tube back segments.Double U isolated tubes back segment bottom leakages
Leak valve and lower leak valve are sequentially arranged with pipe.The structure of calcium lime powder dry desulfurization device is as follows：Supplement thick above water pipe
The fluid bed of calcium lime powder dry desulfurization device, the dispensing of the calcium lime powder delivery device of calcium lime powder dry desulfurization device are housed on pipe
Pipe dips down tiltedly in the side wall of extra heavy pipe above the fluid bed of calcium lime powder dry desulfurization device.Calcium lime powder delivery device
Quick lime tank in calcium lime powder pass through the electronic rotation valve that is equipped with of quick lime pot bottom, from the throwing of calcium lime powder delivery device
Pipe is put to launch onto the fluid bed of calcium lime powder dry desulfurization device downwards.Life stone on the fluid bed of calcium lime powder dry desulfurization device
With water vapour chemical reaction generation white lime occurs for ash, and tiny hydrated lime in powder is fallen on the perhaps lacunary filter cloth of band, then
Fallen into again from the aperture on filter cloth in the white lime water of double U isolated tube back segments.On the fluid bed of calcium lime powder dry desulfurization device
Ammonia pipe is housed in the side wall of square extra heavy pipe, motorized adjustment ammonia valve is housed on ammonia pipe.Dirty blast furnace gas is before double U isolated tubes
The pipeline of section lower section enters double U isolated tubes, and the white lime water that then double U isolated tubes back segments are equipped with jacks up；White lime water is upward
Passed through from the aperture of filter cloth, dirty blast furnace gas passes through the white lime water that double U isolated tube back segments are equipped with, then is upward through filtering
Substantial amounts of bubble is formed in cloth, the white lime water above filter cloth, these bubbles overflow from the white lime water above filter cloth
Go out, make white lime boiling water.Dirty blast furnace gas is sufficiently mixed the sulfur dioxide removed in dirty blast furnace gas with white lime water
And hydrogen chloride, dirty blast furnace gas is when through the calcium lime powder of fluid bed, by the sulfur dioxide in dirty blast furnace gas, chlorination
Hydrogen further removes while also removes water vapour.Ammonia passes through the motorized adjustment ammonia valve that is equipped with ammonia pipe and ammonia pipe
Extra heavy pipe removes the nitric oxide in dirty blast furnace gas above into the fluid bed of calcium lime powder dry desulfurization device.By ammonia
The dust being sequentially arranged with pipeline above pipe in sack cleaner and electrostatic precipitator removing blast furnace gas.Remove titanium dioxide
Sulphur, hydrogen chloride, water vapour and nitric oxide, the first order that secondary coolers are entered except the clean blast furnace gas after dust are cold
Interchange channel is heated while cooled the dirty blast furnace gas just come out from blast furnace, by the first of secondary coolers
The heated clean blast furnace gas in the cold interchange channel of level is pressed into blast furnace gas by axial flow blower through blast furnace gas electric control valve
In catalytic burner.The structure of blast furnace gas catalytic burner is as follows：The hypomere of blast furnace gas catalytic burner has premixer, high
The epimere of producer gas catalytic burner has two burning zones, two burning zones by two layers of cellular or foam-like catalytic ceramics plate or
Two layers of cellular or foam-like alloy catalytic plate composition of person.Two layers of cellular or foam-like catalytic ceramics plate or two layers it is cellular
Or air loop duct is housed in the side wall between foam-like alloy catalytic plate, there is a circle blowing mouth on air loop duct.Filled in blowing mouth
There is the nozzle of the igniting of air plasma torch and heating, or equipped with gas flame igniting and the nozzle heated in blowing mouth.Two
The cellular or foam-like catalytic ceramics plate of layer or two layers cellular or foam-like alloy catalytic plate between side wall on equipped with temperature
Spend the probe of sensor.Upper strata is cellular or foam-like catalytic ceramics plate or upper strata is cellular or foam-like alloy catalytic plate
Top is equipped with ionic flame detector.The wind or oxygen-enriched generator of air blower blowout are produced oxygen-enriched by two level cooling
The first transportation work style or the oxygen-enriched premix motorized adjustment air-valve that passes through after the cold interchange channel in the second level of device is heated enter blast furnace coal
Premixer in gas catalytic burner.The oxygen-enriched two level that enters that the wind or oxygen-enriched generator of air blower blowout are produced cools down
The second transportation work style after the cold interchange channel in the second level of device is heated enters air loop duct after combustion-supporting motorized adjustment air-valve, then from
Blowing mouth on air loop duct is blown into two layers of cellular or foam-like catalytic ceramics plate or two layers of cellular or foam-like catalysis
Gap space between alloy sheets；Two layers of cellular or foam-like catalytic ceramics plate or two layers be cellular or foam-like catalysis
Mixed in gap between alloy sheets with clean blast furnace gas, assist clean blast furnace gas to be catalyzed in blast furnace gas
On the cellular or foam-like catalytic ceramics plate of two burning zones in burner or cellular or foam-like alloy catalytic plate
Burning.
The method of the pure burning of blast furnace gas of the present invention：A) clean blast furnace gas is carried out regenerating heating and to supporting blast furnace coal
The air of the pure burning of gas oxygen-enriched is heated：Dirty blast furnace of the temperature come out from blast furnace between 80~150 DEG C
Coal gas is cooled after the first order hot switching path and second level hot switching path by a secondary coolers successively.Through
Cross limewash wet desulphurization device and remove sulfur dioxide gas and hydrogen chloride gas, then it is further by calcium lime powder dry desulfurization device
Scrubbing CO_2 gas and hydrogen chloride gas while also remove water vapour.Nitric oxide gas is removed by ammonia denitrator,
The dust in blast furnace gas is removed by sack cleaner and electrostatic dust-releasing device again.Scrubbing CO_2, hydrogen chloride, nitric oxide
And water vapour, the cold interchange channel of the first order that secondary coolers are entered except the clean blast furnace gas of dust are heated, passed through
The heated clean blast furnace gas in the cold interchange channel of the first order of secondary coolers is by axial flow blower press-in blast furnace gas catalysis
In burner.The wind of the air blower blowout or oxygen-enriched second level into secondary coolers produced of oxygen-enriched generator is cold changes
Passage is heated.It is higher into the clean blast furnace gas in blast furnace gas catalytic burner and air or oxygen-enriched temperature,
Clean blast furnace gas is more readily ignited.B) toward the premixer of blast furnace gas catalytic burner be blown into a certain amount of air or
The oxygen-enriched clean blast furnace gas with inside premixer of person is pre-mixed：Appropriate air or it is oxygen-enriched with it is clean inside premixer
Blast furnace gas premixing, be advantageous to clean blast furnace gas and light；The air or richness being pre-mixed with clean blast furnace gas
The amount of oxygen is too many, and the premixing of clean blast furnace gas can explode when being ignited.C) temperature of burner is higher, and fuel is firing
Burner is more being readily ignited；With gas lighter be can not directly will spray into diesel range burner in diesel oil light.
Rolled into a mass by kneading with hand handle newspaper, water diesel oil again, the newspaper group for pouring diesel oil is lighted with gas lighter, then the report lighted
Spitball is put into the burner of diesel range, and iron pan is placed on diesel range, starts the blower fan of diesel range.Pour the newspaper group of diesel oil
Promptly burnt in the wind that the blower fan of diesel range blasts, the burner of Heating Diesel Fuel stove.Deng the temperature of the burner of diesel range
After rise, restart diesel pump and open diesel oil valve, after diesel oil enters the burner of diesel range, sprayed from diesel fuel nozzle, quilt
The newspaper group flame ignition burnt in the burner of diesel range.The burning zone of blast furnace gas catalytic burner is heated：It is high
The temperature of the burning zone of producer gas catalytic burner is higher, into the clean blast furnace of the burning zone of blast furnace gas catalytic burner
Coal gas is more readily ignited.With the burning zone of air plasma flame heating furnace coal gas catalytic burner, or air blower
After the cold interchange channel in the oxygen-enriched second level into secondary coolers that the wind or oxygen-enriched generator of blowout are produced is heated
The second transportation work style or it is oxygen-enriched enter ring pipe after combustion-supporting motorized adjustment air-valve, then be blown into two from the blowing mouth on ring pipe
The cellular or foam-like catalytic ceramics plate of layer or two layers cellular or foam-like alloy catalytic plate between gap space, support
Gas flame burning, the burning zone of heating furnace coal gas catalytic burner.Two Deng blast furnace gas catalytic burner are cellular
Or after foam-like catalytic ceramics plate or cellular or foam-like alloy catalytic plate burning zone temperature reach set temperature value,
Be exactly two layers of cellular or foam-like catalytic ceramics plate or two layers cellular or foam-like alloy catalytic plate between side wall on
After probe detection equipped with temperature sensor reaches set temperature value to temperature.Clean blast furnace gas is led to axial flow blower again
Cross the premixer of blast furnace gas electric control valve press-in blast furnace gas catalytic burner, the wind of air blower blowout or oxygen-enriched generation
The cold interchange channel in the oxygen-enriched second level into secondary coolers that device is produced be heated after the first transportation work style or oxygen-enriched warp
Premix motorized adjustment air-valve is crossed into the premixer in blast furnace gas catalytic burner with entering blast furnace gas catalytic burner
The clean blast furnace gas mixing of premixer, then pass through the blast furnace gas catalytic burner after heating lower floor is cellular or bubble
Foam shape catalytic ceramics plate or cellular or foam-like alloy catalytic plate burning zone, are mixed with air or oxygen-enriched clean blast furnace
Coal gas the very high temperature of blast furnace gas catalytic burner two cellular or foam-like catalytic ceramics plates or it is cellular or
It is ignited in gap between foam-like alloy catalytic plate burning zone.D) heat storage type burns：An open burning only burning
Layer, the flame of this burning zone are up to twenties centimetres, and the amount of the gas of such combustion heating is just very big, the temperature rise of these gases
It is not very high.In open burning, the temperature of the gas of heating does not reach in clean blast furnace gas clean blast furnace gas
680 DEG C of carbon monoxide burning-point, clean blast furnace gas will not be ignited in open burning.Heat storage type burning has two
Burning zone, the two burning zones are that two layers cellular or foam-like urge catalytic ceramics plate or two layers it is cellular or foam-like is urged
Chemical combination golden plate, only three to four centimetres of distance, the flame of upper burning zone only have one centimetre of height, heat storage type between two burning zones
A quarter of the gas flow of two burning zones heating of burning less than the gas flow that one layer of burning zone of open burning heats.
So the small volume of the gas of two burning zones heating of heat storage type burning, the gas of two burning zones heating of heat storage type burning
Temperature than open burning one layer of burning zone heat gas temperature it is much higher.Clean blast furnace gas is in heat storage type
In burning, the temperature of the gas of heating exceedes the burning-point of 680 DEG C of carbon monoxide in clean blast furnace gas, clean blast furnace coal
Gas is easy to entering the cellular or foam-like catalytic ceramics plate or two layers of cellular or foam-like of heat storage type combustion system
It is ignited behind gap between alloy catalytic plate.E) catalysis burning：All applied on two burning zones of blast furnace gas catalytic burner
There are platinum, rhodium, niobium, vanadium and tungsten catalyst, gas flame can be only normal temperature and pressure without quilt under catalysis in the presence of catalyst
60% clean blast furnace gas of the carbon monoxide gas concentration that gas flame is lighted is lighted, in the presence of catalyst totally
Blast furnace gas is ignited in the case of 8% thin oxygen can be comprised only in mixed gas, and in the effect of catalyst
Lower carbon monoxide ignition temperature has declined.So clean blast furnace gas and air or it is oxygen-enriched mixed in premixer after, then
It is upward through the cellular or foam-like catalytic ceramics plate of lower floor's burning zone or cellular or foam-like alloy catalytic plate (20)
When, it can be lighted in the presence of catalyst by air plasma flame or gas flame.F) purification of blast furnace gas：Acid
Property gas has corrosiveness, it is necessary to remove sour gas to catalyst.Dust can fall on the combustion of blast furnace gas catalytic burner
Burn on cellular or foam-like catalytic ceramics plate or the cellular or foam-like alloy catalytic plate of layer, blast furnace gas can be hindered to urge
Change urging on the cellular or foam-like catalytic ceramics plate or cellular or foam-like alloy catalytic plate of the burning zone of burner
Agent contact with fuel gas and oxygen.Water vapour can help chemical reaction between sour gas and catalyst, corrosion to urge
Agent, water vapour can also help dust be bonded at blast furnace gas catalytic burner burning zone cellular or foam-like catalytic ceramics
On plate or cellular or foam-like alloy catalytic plate.Remove sour gas：Supplement water passes through thick above double U isolated tubes back segments
Motorized adjustment water valve on supplement water pipe in pipe side wall and supplement water pipe is flowed on filter cloth, then from filter cloth flow into double U every
From in pipe back segment.Calcium lime powder in the quick lime tank of calcium lime powder delivery device passes through the electronic rotation that quick lime pot bottom is equipped with
Rotary valve, launched from the dispensing pipe of calcium lime powder delivery device onto the fluid bed of calcium lime powder dry desulfurization device downwards.Quick lime
With water vapour chemical reaction generation white lime occurs for the quick lime on the fluid bed of dried bean noodles method devulcanizer, and tiny hydrated lime in powder falls
Onto the perhaps lacunary filter cloth of band, then fallen into the aperture from filter cloth the white lime water of double U isolated tube back segments.It is dirty
Blast furnace gas enter double U isolated tubes from the pipeline below double U isolated tubes leading portions, then double U isolated tubes back segments are equipped with ripe
Limewash jacks up；White lime water passes through from the aperture of filter cloth upwards, and dirty blast furnace gas passes through what double U isolated tube back segments were equipped with
White lime water, then be upward through in filter cloth, the white lime water above filter cloth and form substantial amounts of bubble, these bubbles are from mistake
Overflowed in white lime water above filter cloth, make white lime boiling water.Dirty blast furnace gas and white lime water be sufficiently mixed remove it is dirty
Blast furnace gas in sulfur dioxide and hydrogen chloride, dirty blast furnace gas is when through the calcium lime powder of fluid bed, by dirty height
Sulfur dioxide, hydrogen chloride in producer gas further remove while also remove water vapour.Ammonia passes through ammonia pipe and ammonia pipe
On the motorized adjustment ammonia valve that is equipped with enter extra heavy pipe above the fluid bed of calcium lime powder dry desulfurization device, by dirty blast furnace gas
Nitric oxide remove.Remove the dust in blast furnace gas：Blast furnace gas removes high by sack cleaner and static dust device again
Dust in producer gas.Lime mud falls into double U isolated tube back segments bottoms, the upper leakage on double U isolated tubes back segment bottom leakage pipes
Valve is opened, and the lime mud for falling into double U isolated tube back segments bottoms is leaked into the blow-by tube between upper leak valve and lower leak valve,
Leak valve river lime mud unloads under being then shut off leak valve and opening.
It is cold that dirty blast furnace gas of the temperature between 80~150 DEG C at the top of from blast furnace out enters a two level
But it is cooled after the hot switching path of device.Supplement water passes through the supplement water in the extra heavy pipe side wall above double U isolated tubes back segments
Motorized adjustment water valve on pipe and supplement water pipe is flowed on filter cloth, then is flowed into from filter cloth in double U isolated tube back segments.Quick lime
Calcium lime powder in tank passes through the electronic rotation valve that quick lime pot bottom is equipped with, downward from the dispensing pipe of calcium lime powder delivery device
On the fluid bed for launching calcium lime powder dry desulfurization device.Quick lime on the fluid bed of calcium lime powder dry desulfurization device steams with water
Chemical reaction generation white lime occurs for vapour, and tiny hydrated lime in powder is fallen on the perhaps lacunary filter cloth of band, then again from filtering
Aperture on cloth is fallen into the white lime water of double U isolated tube back segments.Dirty blast furnace gas is from the pipeline below double U isolated tubes leading portions
Into double U isolated tubes, the white lime water that then double U isolated tubes back segments are equipped with jacks up；White lime water is upwards from the small of filter cloth
Hole passes through, and dirty blast furnace gas passes through the white lime water that double U isolated tube back segments are equipped with, then is upward through filter cloth, in filter cloth
Substantial amounts of bubble is formed in the white lime water of top, these bubbles overflow from the white lime water above filter cloth, make white lime
Boiling water.Dirty blast furnace gas is sufficiently mixed the sulfur dioxide and hydrogen chloride that remove in dirty blast furnace gas with white lime water, dirty
Blast furnace gas when through the calcium lime powder of fluid bed, the sulfur dioxide in dirty blast furnace gas, hydrogen chloride are further gone
Remove while also remove water vapour.Ammonia enters quick lime by the motorized adjustment ammonia valve being equipped with ammonia pipe and ammonia pipe
Extra heavy pipe removes the nitric oxide in dirty blast furnace gas above the fluid bed of dried bean noodles method devulcanizer.Then sack cleaner is passed through
The dust in blast furnace gas is removed with electrostatic precipitator.Scrubbing CO_2, hydrogen chloride, water vapour and nitric oxide, except dedusting
The cold interchange channel of the first order that clean blast furnace gas after dirt enters secondary coolers is heated.Added with air plasma flame
The burning zone of hot blast furnace gas catalytic burner, either air blower blowout wind or oxygen-enriched generator produce it is oxygen-enriched enter
Enter secondary coolers the cold interchange channel in the second level be heated after the second transportation work style or oxygen-enriched, by combustion-supporting motorized adjustment air-valve
Enter ring pipe afterwards, then two layers of cellular or foam-like catalytic ceramics plate or two layers of honeycomb are blown into from the blowing mouth on ring pipe
Gap space between shape or foam-like alloy catalytic plate, support gas flame burning, heating furnace coal gas catalytic burner
Burning zone.Two Deng blast furnace gas catalytic burner are cellular or foam-like catalytic ceramics plate or cellular or foam-like are urged
After the temperature of chemical combination golden plate burning zone reaches set temperature value, that is, two layers cellular or foam-like catalytic ceramics plate or two
The probe detection equipped with temperature sensor reaches setting to temperature in side wall between the cellular or foam-like alloy catalytic plate of layer
After temperature value.The clean blast furnace gas after heating is pressed into blast furnace gas by blast furnace gas electric control valve with axial flow blower
The premixer of catalytic burner, the wind or oxygen-enriched generator of air blower blowout are produced oxygen-enriched into secondary coolers
The second level is cold to change the first transportation work style or oxygen-enriched after passage is heated, and is catalyzed by premixing motorized adjustment air-valve into blast furnace gas
The clean blast furnace gas of premixer of the premixer with entering blast furnace gas catalytic burner in burner mixes, and then passes through
The lower floor of blast furnace gas catalytic burner after heating is cellular or foam-like catalytic ceramics plate or cellular or foam-like are urged
Chemical combination golden plate burning zone, it is mixed with the very high temperature of air or oxygen-enriched clean blast furnace gas in blast furnace gas catalytic burner
Two cellular or foam-like catalytic ceramics plates or cellular or foam-like alloy catalytic plate burning zone between gap in
Lighted by air plasma flame or gas flame.Then stop the electricity of air plasma flame or stop for gas flame
Combustion gas.Upper strata is cellular or foam-like catalytic ceramics plate or upper strata is cellular or the top of foam-like alloy catalytic plate be equipped with from
The high and low level of the probe detection flame of sub- flame detector.Flame is too high, above secondary air feed or oxygen-enriched deficiency.Tune up and help
Motorized adjustment air-valve is fired, increase increases from blowing mouth into the wind or oxygen-enriched of ring pipe and is blown into two layers of cellular or foam-like
Catalytic ceramics plate either two layers cellular or foam-like alloy catalytic plate between gap space wind or Rich Oxygen Amount；Make clean
Two burning zones of the blast furnace gas in blast furnace gas catalytic burner cellular or foam-like urge catalytic ceramics plate or
Cellular or foam-like urges alloy catalytic plate is fully upper to burn, and reduce cellular upper strata or foam-like catalytic ceramics plate or
Upper strata is cellular or the upper flame height of foam-like alloy catalytic plate.Blast furnace gas is pure in blast furnace gas catalytic burner
Burn, caused heat is used for temperature fluctuation variation magnetic field conversion electrical power generators or for preheating before entering blast funnace hot blast stove
Air or oxygen-enriched.
Brief description of the drawings：
Further specific detailed description is done to the present invention with reference to the accompanying drawings and detailed description.
Fig. 1 is the structure principle chart of blast furnace gas catalytic combustion device of the present invention.
Fig. 2 is the A-A sectional views of blast furnace gas catalytic burner in blast furnace gas catalytic combustion device of the present invention.
Embodiment：
Shown in Fig. 1 and Fig. 2, blast furnace gas catalytic combustion device structure of the present invention is as follows：From the top of blast furnace 1 out
Dirty blast furnace gas of the temperature between 80~150 DEG C enters the first order hot switching path and the of secondary coolers 2
It is cooled after two level hot switching path.Then sulfur dioxide gas and hydrogen chloride are removed by white lime water wet desulphurization device
Gas, then go by the further scrubbing CO_2 gas of calcium lime powder dry desulfurization device and hydrogen chloride gas while also to remove water
Steam.Nitric oxide gas is removed by ammonia denitrator.The structure of white lime water wet desulphurization device is as follows：In double U isolated tubes 3
Band perhaps lacunary filter cloth 6 is housed, filter cloth 6 can allow gas to pass through but can hinder wearing for water on the extra heavy pipe above back segment
Cross.Water level in double back segments of U isolated tubes 3 is less than extra heavy pipe, and supplement water passes through in the extra heavy pipe side wall above double back segments of U isolated tubes 3
Supplement water pipe 7 and the motorized adjustment water valve 8 supplemented on water pipe 7 are flowed on filter cloth 6, then flow into double U isolated tubes 3 from filter cloth 6
In back segment.Leak valve 4 and lower leak valve 5 are sequentially arranged with double back segment bottom leakage pipes of U isolated tubes 3.Calcium lime powder dry method takes off
The structure of sulphur device is as follows：Supplement the fluid bed 9 that calcium lime powder dry desulfurization device is housed on the extra heavy pipe of the top of water pipe 7, calcium lime powder
The dispensing pipe of the calcium lime powder delivery device of dry desulfurization device, which dips down, is tiltedly arranged on the fluidisation of calcium lime powder dry desulfurization device
In the side wall of 9 top extra heavy pipes of bed.Calcium lime powder in the quick lime tank 10 of calcium lime powder delivery device passes through the bottom of quick lime tank 10
The electronic rotation valve 11 that portion is equipped with, launched downwards to calcium lime powder dry desulfurization device from the dispensing pipe of calcium lime powder delivery device
On fluid bed 9.Quick lime on the fluid bed 9 of calcium lime powder dry desulfurization device occurs chemical reaction with water vapour and generates ripe stone
Ash, tiny hydrated lime in powder are fallen on the perhaps lacunary filter cloth 6 of band, then fall into double U isolation from the aperture on filter cloth 6 again
In the white lime water of the back segment of pipe 3.Ammonia pipe 12 is housed in the side wall of the top extra heavy pipe of fluid bed 9 of calcium lime powder dry desulfurization device,
Motorized adjustment ammonia valve 13 is housed on ammonia pipe 12.Dirty blast furnace gas enters double U from the pipeline below double leading portions of U isolated tubes 3
Isolated tube 3, the white lime water that then double back segments of U isolated tubes 3 are equipped with jack up；White lime water is worn from the aperture of filter cloth 6 upwards
Cross, dirty blast furnace gas passes through the white lime water that double U isolated tube back segments are equipped with, then is upward through filter cloth 6, on filter cloth 6
Substantial amounts of bubble is formed in the white lime water of side, these bubbles overflow from the white lime water above filter cloth, make white lime water
Boiling.Dirty blast furnace gas is sufficiently mixed the sulfur dioxide and hydrogen chloride that remove in dirty blast furnace gas with white lime water, dirty
Blast furnace gas when through the calcium lime powder of fluid bed, the sulfur dioxide in dirty blast furnace gas, hydrogen chloride are further removed,
Also water vapour is removed simultaneously.Ammonia enters raw stone by the motorized adjustment ammonia valve 13 being equipped with ammonia pipe 12 and ammonia pipe 12
The top extra heavy pipe of fluid bed 9 of ashes dry desulfurization device removes the nitric oxide in dirty blast furnace gas.By on ammonia pipe 12
The dust being sequentially arranged with the pipeline of side in sack cleaner 14 and the removing blast furnace gas of electrostatic precipitator 15.Remove titanium dioxide
Sulphur, hydrogen chloride, water vapour and nitric oxide, except the clean blast furnace gas after dust enters the first order of secondary coolers 2
Cold interchange channel is heated while cooled the dirty blast furnace gas just come out from blast furnace 1, by secondary coolers 2
The heated clean blast furnace gas in the cold interchange channel of the first order is pressed into by axial flow blower 16 through blast furnace gas electric control valve 17
In blast furnace gas catalytic burner.The structure of blast furnace gas catalytic burner is as follows：The hypomere of blast furnace gas catalytic burner has
Premixer 18, the epimere of blast furnace gas catalytic burner have two burning zones, and two burning zones are by two layers of cellular or foam-like
Catalytic ceramics plate or two layers of cellular or foam-like alloy catalytic plate composition.Two layers of cellular or foam-like catalytic ceramics plate or
Two layers of person is cellular or foam-like alloy catalytic plate between side wall on air loop duct is housed, have a circle blowing mouth on air loop duct
26.Nozzle 21 equipped with air plasma flame ignition with heating in blowing mouth 26, or gas flame is housed in blowing mouth 26
The nozzle 21 of igniting and heating.Two layers of cellular or foam-like catalytic ceramics plate or two layers of cellular or foam-like alloy catalytic
The probe of temperature sensor is housed in the side wall between plate.Upper strata is cellular or foam-like catalytic ceramics plate or upper strata it is cellular
Or the top of foam-like alloy catalytic plate 19 is equipped with ionic flame detector 22.The wind or oxygen-enriched generator that air blower 23 is blown out
The cold interchange channel in the oxygen-enriched second level by secondary coolers 2 produced be heated after the first transportation work style or oxygen-enriched process
Premix the premixer 18 that motorized adjustment air-valve 24 enters in blast furnace gas catalytic burner.The wind or oxygen-enriched that air blower 23 is blown out
The second transportation work style process after the cold interchange channel in the oxygen-enriched second level into secondary coolers 2 that generator is produced is heated helps
Enter air loop duct after combustion motorized adjustment air-valve 25, then two layers of cellular or foam-like is blown into from the blowing mouth 26 on air loop duct
Catalytic ceramics plate or two layers cellular or foam-like alloy catalytic plate between gap space；In two layers of cellular or foam-like
Catalytic ceramics plate or two layers cellular or foam-like alloy catalytic plate between gap in be blended in clean blast furnace gas
Together, the cellular or foam-like of two burning zones of the clean blast furnace gas in blast furnace gas catalytic burner is assisted to urge
Change ceramic wafer or cellular or foam-like is urged and burnt on alloy catalytic plate.
Shown in Fig. 1 and Fig. 2, from dirty blast furnace gas of the temperature between 80~150 DEG C of the top of blast furnace 1 out
It is cooled after into the first order hot switching path and second level hot switching path of a secondary coolers 2.Supplement water leads to
The motorized adjustment water valve 8 on the supplement water pipe 7 and supplement water pipe 7 in extra heavy pipe side wall crossed above double back segments of U isolated tubes 3 flowed to
On filter cloth 6, then flow into double back segments of U isolated tubes 3 from filter cloth 6.Calcium lime powder in quick lime tank 10 passes through quick lime tank 10
The electronic rotation valve 11 that bottom is equipped with, launched downwards to calcium lime powder dry desulfurization device from the dispensing pipe of calcium lime powder delivery device
Fluid bed 9 on.Quick lime on the fluid bed 9 of calcium lime powder dry desulfurization device occurs chemical reaction with water vapour and generates ripe stone
Ash, tiny hydrated lime in powder are fallen on the perhaps lacunary filter cloth 6 of band, are then falling into double U isolation from the aperture on filter cloth 6
In the white lime water of the back segment of pipe 3.Dirty blast furnace gas enters double U isolated tubes 3 from the pipeline below double leading portions of U isolated tubes 3, then
The white lime water that double back segments of U isolated tubes 3 are equipped with jacks up, and white lime water passes through from the aperture of filter cloth 6 upwards, dirty blast furnace coal
Gas passes through the white lime water that double back segments of U isolated tubes 3 are equipped with, then is upward through filter cloth 6, the white lime water above filter cloth 6
Middle to form substantial amounts of bubble, these bubbles overflow from the white lime water above filter cloth 6, make white lime boiling water.Dirty height
Producer gas is sufficiently mixed the sulfur dioxide and hydrogen chloride that remove in dirty blast furnace gas with white lime water, and dirty blast furnace gas is being worn
When crossing the calcium lime powder of fluid bed 9, the sulfur dioxide in dirty blast furnace gas, hydrogen chloride are further removed while also by water
Vapour removal.Ammonia is taken off by the motorized adjustment ammonia valve 13 being equipped with ammonia pipe 12 and ammonia pipe 12 into calcium lime powder dry method
The top extra heavy pipe of fluid bed 9 of sulphur device removes the nitric oxide in dirty blast furnace gas.Then by sack cleaner 14 and quiet
Electric cleaner 15 removes the dust in blast furnace gas.Scrubbing CO_2, hydrogen chloride, water vapour and nitric oxide, except dust
The cold interchange channel of the first order that clean blast furnace gas afterwards enters secondary coolers 2 is heated.Added with air plasma flame
The burning zone of hot blast furnace gas catalytic burner, the wind or oxygen-enriched generator that either air blower 23 is blown out are produced oxygen-enriched
The second transportation work style or oxygen-enriched after being heated into the cold interchange channel in the second level of secondary coolers 2, by combustion-supporting motorized adjustment
Enter ring pipe after air-valve 25, then from the blowing mouth 26 on ring pipe be blown into two layers of cellular or foam-like catalytic ceramics plate or
Two layers cellular or foam-like alloy catalytic plate between gap space, support gas flame burning, the catalysis of heating furnace coal gas
The burning zone of burner.Two Deng blast furnace gas catalytic burner are cellular or foam-like catalytic ceramics plate or it is cellular or
After the temperature of foam-like alloy catalytic plate burning zone reaches set temperature value, that is, two layers of cellular or foam-like catalytic ceramics
Plate or two layers cellular or foam-like alloy catalytic plate between side wall on the probe detection equipped with temperature sensor to temperature
After reaching set temperature value.The clean blast furnace gas after heating is passed through blast furnace gas electric control valve 17 with axial flow blower 16
The premixer 18 of blast furnace gas catalytic burner is pressed into, the wind or oxygen-enriched generator that air blower 23 is blown out are produced oxygen-enriched
The first transportation work style or oxygen-enriched after being heated into the cold interchange channel in the second level of secondary coolers 2, by premixing motorized adjustment
Premixer 18 of the premixer 18 that air-valve 24 enters in blast furnace gas catalytic burner with entering blast furnace gas catalytic burner
Clean blast furnace gas mixing, then pass through the blast furnace gas catalytic burner after heating lower floor is cellular or foam-like catalysis
Ceramic wafer or the cellular or burning zone of foam-like alloy catalytic plate 20, are mixed with air or oxygen-enriched clean blast furnace gas exist
Two of the very high temperature of blast furnace gas catalytic burner are cellular or foam-like catalytic ceramics plate or cellular or foam-like
Lighted in gap between alloy catalytic plate burning zone by air plasma flame or gas flame.Then stop air etc. from
The electricity of sub- flame stops supplying the combustion gas of gas flame.Upper strata is cellular or foam-like catalytic ceramics plate or upper strata it is cellular or
The high and low level of probe detection flame of the top of foam-like alloy catalytic plate 19 equipped with ionic flame detector 22.Flame is too
Height, above secondary air feed or oxygen-enriched deficiency.Combustion-supporting motorized adjustment air-valve is tuned up, increase enters the wind or oxygen-enriched of ring pipe,
Increase is blown into two layers of cellular or foam-like catalytic ceramics plate or two layers of cellular or foam-like alloy catalytic from blowing mouth 26
The wind or Rich Oxygen Amount of gap space between plate；Make two combustions of the clean blast furnace gas in blast furnace gas catalytic burner
The cellular or foam-like catalytic ceramics plate or cellular or foam-like alloy catalytic plate for burning layer fully burn, and on reducing
The cellular or foam-like catalytic ceramics plate of layer or upper strata is cellular or the upper flame height of foam-like alloy catalytic plate 19.It is high
Producer gas pure burning in blast furnace gas catalytic burner, caused heat are used to generate electricity or for preheating before entering hot-blast stove
Air or oxygen-enriched.
Claims (2)
- A kind of 1. blast furnace gas catalytic combustion device, it is characterised in that：Temperature at the top of the blast furnace (1) out 80~ Dirty blast furnace gas between 150 DEG C enters the hot friendship of first order hot switching path and the second level of a secondary coolers (2) It is cooled after changing passage, removes sulfur dioxide gas and hydrogen chloride gas by white lime water wet desulphurization device, then pass through The further scrubbing CO_2 gas of calcium lime powder dry desulfurization device and hydrogen chloride gas while water vapour is also removed, by ammonia Gas denitrator removes nitric oxide gas；The structure of white lime water wet desulphurization device is as follows：Above double U isolated tubes (3) back segments Extra heavy pipe on the perhaps lacunary filter cloth (6) of band is housed, filter cloth (6) can allow gas to pass through but can hinder passing through for water, double Water level in U isolated tubes (3) back segment is less than extra heavy pipe, and supplement water passes through the benefit in the extra heavy pipe side wall above double U isolated tubes (3) back segments Motorized adjustment water valve (8) on charging pipe (7) and supplement water pipe (7) is flowed on filter cloth (6), then flows into double U from filter cloth (6) In isolated tube (3) back segment, leak valve (4) and lower leak valve (5) are sequentially arranged with double U isolated tubes (3) back segment bottom leakage pipes； The structure of calcium lime powder dry desulfurization device is as follows：Supplement and calcium lime powder dry desulfurization device is housed on the extra heavy pipe above water pipe (7) Fluid bed (9), the dispensing pipe of the calcium lime powder delivery device of calcium lime powder dry desulfurization device, which dips down, is tiltedly arranged on quick lime Above the fluid bed (9) of dried bean noodles method devulcanizer in the side wall of extra heavy pipe, the inner life of the quick lime tank (10) of calcium lime powder delivery device Pulverized limestone passes through the electronic rotation valve (11) that quick lime tank (10) bottom is equipped with, downward from the dispensing pipe of calcium lime powder delivery device Launch on the fluid bed (9) of calcium lime powder dry desulfurization device, the quick lime on the fluid bed (9) of calcium lime powder dry desulfurization device Chemical reaction generation white lime occurs with water vapour, tiny hydrated lime in powder is fallen on the perhaps lacunary filter cloth (6) of band, then Fallen into again from the aperture on filter cloth (6) in the white lime water of double U isolated tube (3) back segments；The stream of calcium lime powder dry desulfurization device Change and ammonia pipe (12) is housed in the side wall of extra heavy pipe above bed (9), motorized adjustment ammonia valve (13) is housed on ammonia pipe (12)；Dirty Blast furnace gas enters double U isolated tubes (3) from the pipeline below double U isolated tubes (3) leading portions, and then double U isolated tubes (3) back segments are filled Some white lime water jacks up, and white lime water passes through from the aperture of filter cloth (6) upwards, and dirty blast furnace gas passes through double U isolated tubes (3) the white lime water that back segment is equipped with, then be upward through filter cloth (6), formed largely in the white lime water above filter cloth (6) Bubble, these bubbles overflow from the white lime water above filter cloth (6), make white lime boiling water；Dirty blast furnace gas with White lime water is sufficiently mixed the sulfur dioxide and hydrogen chloride removed in dirty blast furnace gas, and dirty blast furnace gas is through fluid bed (9) during calcium lime powder, the sulfur dioxide in dirty blast furnace gas, hydrogen chloride is further removed while also removed water vapour Remove；Ammonia is taken off by the motorized adjustment ammonia valve (13) being equipped with ammonia pipe (12) and ammonia pipe (12) into calcium lime powder dry method Extra heavy pipe removes the nitric oxide in dirty blast furnace gas above the fluid bed (9) of sulphur device；By the pipe above ammonia pipe (12) The dust being sequentially arranged with road in sack cleaner (14) and electrostatic precipitator (15) removing blast furnace gas；Scrubbing CO_2, Hydrogen chloride, water vapour and nitric oxide, the first order that secondary coolers (2) are entered except the clean blast furnace gas after dust are cold Interchange channel is heated, and the heated clean blast furnace gas in the cold interchange channel of the first order by secondary coolers (2) is by axle Flow fan (16) is pressed into blast furnace gas catalytic burner through blast furnace gas electric control valve (17)；Blast furnace gas catalytic burner Structure it is as follows：The hypomere of blast furnace gas catalytic burner has premixer (18), and the epimere of blast furnace gas catalytic burner has two Individual burning zone, two burning zones are by two layers of cellular or foam-like catalytic ceramics plate or two layers be cellular or foam-like catalysis is closed Golden plate forms, two layers of cellular or foam-like catalytic ceramics plate or two layers cellular or foam-like alloy catalytic plate between side Air loop duct is housed on wall, has a circle blowing mouth (26) on the air loop duct, air plasma fire is housed in blowing mouth (26) The nozzle (21) of flame ignition and heating, or the nozzle (21) lighted a fire and heated equipped with gas flame in blowing mouth (26), two layers Cellular or foam-like catalytic ceramics plate or two layers cellular or foam-like alloy catalytic plate between side wall on temperature is housed The probe of sensor, upper strata is cellular or foam-like catalytic ceramics plate or upper strata is cellular or foam-like alloy catalytic plate (19) Top ionic flame detector (22) is housed；Air blower (23) blowout wind or oxygen-enriched generator produce it is oxygen-enriched enter Enter secondary coolers (2) the cold interchange channel in the second level be heated after the first transportation work style or it is oxygen-enriched by premix motorized adjustment wind The premixer (18) that valve (24) enters in blast furnace gas catalytic burner, the wind of air blower (23) blowout or oxygen-enriched generator life The second transportation work style or oxygen-enriched process after the next oxygen-enriched cold interchange channel in the second level for entering secondary coolers (2) of output is heated Combustion-supporting motorized adjustment air-valve (25) enters air loop duct afterwards, then from the blowing mouth (26) on air loop duct be blown into two layers it is cellular or Foam-like catalytic ceramics plate or two layers cellular or foam-like alloy catalytic plate between gap space, two layers it is cellular or Foam-like catalytic ceramics plate or two layers cellular or foam-like alloy catalytic plate between gap in clean blast furnace gas Mix, assist the cellular or foam of two burning zones of the clean blast furnace gas in blast furnace gas catalytic burner Burnt on shape catalytic ceramics plate or cellular or foam-like alloy catalytic plate.
- 2. the method for the pure burning of blast furnace gas, it is characterised in that：A) clean blast furnace gas is carried out regenerating heating and to supporting height The air of the pure burning of producer gas oxygen-enriched is heated：Dirt of the temperature come out from blast furnace (1) between 80~150 DEG C Blast furnace gas it is cold after the first order hot switching path and second level hot switching path of a secondary coolers (2) successively But get off, remove sulfur dioxide gas and hydrogen chloride gas by limewash wet desulphurization device, taken off by calcium lime powder dry method The further scrubbing CO_2 gas of sulphur device and hydrogen chloride gas while water vapour is also removed, one is removed by ammonia denitrator Nitrogen oxide gas；The dust in blast furnace gas is removed by sack cleaner (14) and electrostatic precipitator (15) again；Remove dioxy Change sulphur, hydrogen chloride, nitric oxide and water vapour, except the clean blast furnace gas of dust enters the first of secondary coolers (2) The cold interchange channel of level is heated, the heated clean blast furnace gas in the cold interchange channel of the first order by secondary coolers (2) It is pressed into by axial flow blower in blast furnace gas catalytic burner；What the wind or oxygen-enriched generator of air blower (23) blowout were produced The oxygen-enriched cold interchange channel in the second level for entering secondary coolers (2) is heated；Into clean in blast furnace gas catalytic burner Blast furnace gas and air or oxygen-enriched temperature it is higher, clean blast furnace gas is more readily ignited；B) toward blast furnace gas The premixer (18) of catalytic burner is blown into a certain amount of air or the oxygen-enriched clean blast furnace coal with inside premixer (18) Gas is pre-mixed；C) burning zone of blast furnace gas catalytic burner is heated：With air plasma flame heating furnace coal gas The burning zone of catalytic burner, what either the wind of air blower (23) blowout or oxygen-enriched generator were produced oxygen-enriched enters two level The second transportation work style or oxygen-enriched by combustion-supporting motorized adjustment air-valve (25) after the cold interchange channel in the second level of cooler (2) is heated Enter ring pipe afterwards, then two layers cellular or foam-like catalytic ceramics plate or two layers are blown into from the blowing mouth (26) on ring pipe Gap space between cellular or foam-like alloy catalytic plate, support gas flame burning, the catalysis burning of heating furnace coal gas The burning zone of device, wait two of blast furnace gas catalytic burner cellular or foam-like catalytic ceramics plates or cellular or foam After the temperature of shape alloy catalytic plate burning zone reaches set temperature value, that is, two layers of cellular or foam-like catalytic ceramics plate or Two layers of person is cellular or foam-like alloy catalytic plate between side wall on the probe detection equipped with temperature sensor reach to temperature After set temperature value, then it is with axial flow blower (16) that clean blast furnace gas is high by blast furnace gas electric control valve (17) press-in The premixer (18) of producer gas catalytic burner, air blower (23) blowout wind or oxygen-enriched generator produce it is oxygen-enriched enter Enter secondary coolers (2) the cold interchange channel in the second level be heated after the first transportation work style or it is oxygen-enriched by premix motorized adjustment wind Premixer (18) of the premixer (18) that valve enters in blast furnace gas catalytic burner with entering blast furnace gas catalytic burner Clean blast furnace gas mixing, then pass through the blast furnace gas catalytic burner after heating lower floor is cellular or foam-like catalysis Ceramic wafer or cellular or foam-like alloy catalytic plate (20) burning zone, are mixed with air or oxygen-enriched clean blast furnace gas Two in the very high temperature of blast furnace gas catalytic burner are cellular or foam-like catalytic ceramics plate or cellular or foam It is ignited in gap between shape alloy catalytic plate burning zone；D) heat storage type burns：Heat storage type burning has two burning zones, and this two Individual burning zone is two layers of cellular or foam-like catalytic ceramics plate or two layers of cellular or foam-like alloy catalytic plate, and two fire Only three to four centimetres of distance, the flame of upper burning zone only have one centimetre of height between burning layer, and clean blast furnace gas is in heat accumulation In formula burning, the temperature of the gas of heating exceedes the burning-point of 680 DEG C of carbon monoxide in clean blast furnace gas, clean blast furnace Coal gas is easy to entering the cellular or foam-like catalytic ceramics plate or two layers of cellular or foam of heat storage type combustion system It is ignited behind gap between shape alloy catalytic plate；E) catalysis burning：On two burning zones of blast furnace gas catalytic burner all Scribble platinum, rhodium, niobium, vanadium and tungsten catalyst, in the presence of the catalyst gas flame can only normal temperature and pressure without catalysis under Lighted by 60% clean blast furnace gas of the carbon monoxide gas concentration that gas flame is lighted, it is clean in the presence of catalyst Blast furnace gas 8% thin oxygen can be comprised only in mixed gas in the case of be ignited, and in the work of catalyst Declined with lower carbon monoxide ignition temperature；So clean blast furnace gas and air or it is oxygen-enriched mixed in premixer after, The cellular or foam-like catalytic ceramics plate of lower floor's burning zone or cellular or foam-like alloy catalytic plate are upward through again (20) when, can be lighted in the presence of catalyst by air plasma flame or gas flame；F) blast furnace gas is net Change：Remove sour gas：In limewash wet desulphurization device, supplement water passes through the extra heavy pipe side wall above double U isolated tubes (3) back segments On supplement water pipe (7) and supplement water pipe (7) on motorized adjustment water valve (8) flow on filter cloth (6), then flowed into from filter cloth In double U isolated tubes back segments；The calcium lime powder that the quick lime tank (10) of calcium lime powder delivery device is inner passes through quick lime tank (10) bottom The electronic rotation valve (11) that portion is equipped with, launched downwards to calcium lime powder dry desulfurization device from the dispensing pipe of calcium lime powder delivery device Fluid bed (9) on, with water vapour chemical reaction generation occurs for quick lime on the fluid bed (9) of calcium lime powder dry desulfurization device White lime, tiny hydrated lime in powder fall on the perhaps lacunary filter cloth (6) of band, then fallen again from the aperture on filter cloth (6) In the white lime water for entering double U isolated tube (3) back segments；Dirty blast furnace gas enters double from the pipeline below double U isolated tubes (3) leading portions U isolated tubes (3), the white lime water that then double U isolated tubes (3) back segments are equipped with jack up, and white lime water is upwards from filter cloth (6) Aperture passes through, and dirty blast furnace gas passes through the white lime water that double U isolated tube (3) back segments are equipped with, then be upward through filter cloth (6), Substantial amounts of bubble is formed in the white lime water above filter cloth (6), these bubbles are from the white lime water above filter cloth (6) Overflow, make white lime boiling water；Dirty blast furnace gas is sufficiently mixed the titanium dioxide removed in dirty blast furnace gas with white lime water Sulphur and hydrogen chloride, dirty blast furnace gas is when through the calcium lime powder of fluid bed (9), by the titanium dioxide in dirty blast furnace gas Sulphur, hydrogen chloride further remove while also remove water vapour；Ammonia is by being equipped with ammonia pipe (12) and ammonia pipe (12) Motorized adjustment ammonia valve (13) enters extra heavy pipe above the fluid bed (9) of calcium lime powder dry desulfurization device, by dirty blast furnace gas Nitric oxide remove；Remove the dust in blast furnace gas：Blast furnace gas passes through sack cleaner (14) and electrostatic precipitator again (15) dust in blast furnace gas is removed；Lime mud falls into double U isolated tube (3) back segment bottoms, double U isolated tubes (3) back segment bottoms Upper leak valve (4) in blow-by tube is opened, and the lime mud for falling into double U isolated tube (3) back segment bottoms is leaked into upper leak valve (4) In blow-by tube between lower leak valve (5), leak valve (5) unloads lime mud under being then shut off leak valve (4) and opening.
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