CN106765087A - A kind of Multifunction combustion device - Google Patents
A kind of Multifunction combustion device Download PDFInfo
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- CN106765087A CN106765087A CN201611166131.2A CN201611166131A CN106765087A CN 106765087 A CN106765087 A CN 106765087A CN 201611166131 A CN201611166131 A CN 201611166131A CN 106765087 A CN106765087 A CN 106765087A
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- Prior art keywords
- gas
- combustion
- burner
- air
- flue gas
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
Abstract
The invention belongs to field of combustion equipment, more particularly to a kind of Multifunction combustion device, including：Left side burner, body of heater, right side burner, three-way diverter valve, combustion gas and air gas mixture feeding pipe and smoke discharge tube road, wherein, one end of the left side burner is provided with combustion gas and air gas mixture entrance and the exhanst gas outlet below the combustion gas and air gas mixture entrance, and heat storage, denitrating catalyst area and porous media area are sequentially provided with the inside of the left side burner；The three-way diverter valve includes：Combustion gas and air gas mixture three-way diverter valve and flue gas three-way diverter valve.The device collection flue gas denitration catalyst processing mode and multi-hole medium combustion mode integration, solve current heat storage type porous medium burner discharge nitrogen oxides in effluent content it is high the problems such as.
Description
Technical field
The invention belongs to field of combustion equipment, more particularly to a kind of Multifunction combustion device.
Background technology
Exhaust gas temperature can be dropped to less than 180 DEG C by regenerative combustion technology, by air（Or air and coal gas）It is preheating to only
It is lower than furnace temperature 50 ~ 100 DEG C, the waste heat in high-temperature flue gas is reclaimed to the utmost, the utilization rate of fuel combustion heat is significantly lifted,
Energy-conservation 30% to 70%, simultaneously because the burning reversing mode of regenerative combustion technology, can well improve fluid field in furnace, makes in stove
Temperature homogeneity gets a promotion, and improves heating quality, while reducing the pollutant produced by localized hyperthermia, but is using temperature
Degree requires during less than 800 ~ 900 DEG C, is just not suitable for using regenerative combustion technology.Multi-hole medium combustion technology, combustion reaction
Completed in the space of porous media, ignition temperature uniformity, complete degree of combustion are good, and outside does not have the dirts such as naked light flame, NO and CO
Contaminating the generation of thing significantly reduces (up to more than 70%).Due to the increase significantly improved with radiant heat transfer of bulk temperature, the combustion heat
Utilization ratio is greatly improved.Because the thermal capacity of porous media is big, in combustion, in calorific value of gas waviness, Ke Yiwei
Hold the stability of temperature so that when using super-low calorific value (poor quality) fuel (low concentration gas gas, organic exhaust gas etc.), can stabilization
Burning, but the ability Shortcomings on exhaust gas temperature is reduced.Therefore how designing one kind can reduce nitrogen in discharge flue gas
The burner of oxide content turns into the technical problem of this area urgent need to resolve.
The content of the invention
The present invention is in view of the shortcomings of the prior art, it is proposed that a kind of Multifunction combustion device, the device collection denitrating flue gas are urged
Change processing mode and the integration of multi-hole medium combustion mode, solve current heat storage type porous medium burner and discharge flue gas
The problems such as middle amount of nitrogen oxides is high.
In order to solve the above technical problems, the technical scheme that the present invention takes is：
The present invention proposes a kind of Multifunction combustion device, embodiments in accordance with the present invention, including：Left side burner, body of heater, the right side
Side burner, three-way diverter valve, combustion gas and air gas mixture feeding pipe and smoke discharge tube road, wherein, the left side combustion
One end of burner is provided with combustion gas and air gas mixture entrance and below the combustion gas and air gas mixture entrance
Exhanst gas outlet, heat storage, denitrating catalyst area and porous media area are sequentially provided with the inside of the left side burner, described many
The two ends of hole dielectric area are round platform passage, are provided with high-energy igniter and reducing agent entrance, its small-bore in round platform passage at one end
One end is connected with the denitrating catalyst area, and the other end round platform passage in the porous media area forms high-temperature flue gas outlet, its
The body of heater is stretched into small-bore one end, and for making flue gas enter burner hearth, structure and the left side of the right side burner are burnt
Device it is identical and the two with the body of heater as symmetry axis, be symmetrical set in the both sides of the body of heater；The three-way diverter valve bag
Include：Combustion gas and air gas mixture three-way diverter valve and flue gas three-way diverter valve, the combustion gas and air gas mixture threeway are changed
To valve respectively with the combustion gas and air gas mixture feeding pipe, left side combustion gas and air gas mixture entrance and right side combustion gas
Be connected with air gas mixture entrance, the flue gas three-way diverter valve respectively with the smoke discharge tube road, left side exhanst gas outlet
It is connected with right side exhanst gas outlet, for making the left side burner and right side burner replace reversing combustion-smoke evacuation.
Inventor has found, according to Multifunction combustion device of the present invention, collection flue gas denitration catalyst processing mode and porous
The integration of agent burns mode, solving current heat storage type porous medium burner, to discharge nitrogen oxides in effluent content high
The problems such as, porous media is filled into burner, to adapt to multi-state, big regulation ratio, electrodeless continuously adjustabe, while realizing the flames of anger
Heating, improves fire box temperature uniformity.
Embodiments in accordance with the present invention, the high-energy igniter is located at the top of porous media area one end round platform passage
And its one end stretches into the round platform passage, the other end is located at the outside of the burner, for the combustion gas and air to be mixed
Gas carries out lighting burning, and the reducing agent entrance is positioned at the lower section of the round platform passage where the high-energy igniter and its one end
The round platform passage is stretched into, the other end is located at the outside of the burner, for being passed through also when the burner is for smoke evacuation side
Former agent flows through the denitrating catalyst area, carries out denitration reaction, reduces the discharge of nitrogen oxides.
Embodiments in accordance with the present invention, the Multifunction combustion device also includes：Combustion gas and air Mixture fluid line and
Flue gas pipeline, the combustion gas and air Mixture fluid line and the combustion gas and air gas mixture three-way diverter valve and described
Left and right side combustion gas is connected with air gas mixture entrance, the flue gas pipeline and flue gas three-way diverter valve and the left and right side cigarette
Gas outlet is connected.
Embodiments in accordance with the present invention, the combustion gas and air gas mixture entrance and exhanst gas outlet are the pipe of DN250
Road.
Embodiments in accordance with the present invention, the heat storage is that specific surface area is 800m2/ m3Honeycomb ceramics, volume is 0.128
m3, the denitrating catalyst region is 0.15 m3, the porous media is that aperture is the foamed ceramics of 2-4mm, porous Jie
Matter region is 0.084 m3。
In another aspect of this invention, the invention provides a kind of method burnt using device noted earlier, root
According to embodiments of the invention, comprise the following steps：The first step：When the left side burner is combustion side, right side burner is row
Cigarette side, switches the combustion gas and air gas mixture three-way diverter valve, the left side air and burning line is connected, through the left side
Side combustion gas and air gas mixture entrance are passed through the air and combustion gas mixing gas to the left side burner, the air and
Combustion gas mixing gas sequentially passes through the left side heat storage, denitrating catalyst area and porous media area；Second step：The air and
After combustion gas mixing gas reaches the round platform passage of left side porous media area one end, start the high-energy igniter, light institute
Air and combustion gas mixing gas are stated, carrying out burning in the left side porous media area produces high-temperature flue gas, through the left side high temperature
Exhanst gas outlet enters and heats the burner hearth, there is provided thermal source, enters back into right side burner, and the high-temperature flue gas are by described in right side
Porous media area is simultaneously heated, and now high-temperature flue-gas decline；3rd step：When flue gas reaches right side porous media area one end
Round platform passage when, by the right side reducing agent entrance spray into reducing agent, the reducing agent together with the flue gas enter institute
Right side denitrating catalyst area is stated, denitration reaction is carried out, flowing through the heat storage by reacted flue gas further reduces flue gas
Own temperature, last flue gas enters right side flue gas pipeline with the state of low temperature by the right side exhanst gas outlet, now switches cigarette
Gas three-way diverter valve connection right side flue gas pipeline, discharges through the smoke discharge tube road；4th step：Through being changed after a while
To the right side burner is combustion side, and left side burner is smoke evacuation side, and working method is combustion side with the left side burner
Shi Xiangtong.
The thermic load scope of embodiments in accordance with the present invention, the left side and right side burner is 50 × 104kcal/h-
150×104The temperature of kcal/h, the high-temperature flue gas and burner hearth is 500-1000 DEG C, and the temperature of the low-temperature flue gas is small
In 180 DEG C；The combustion gas is that calorific value is 750 kcal/Nm3Blast furnace gas, specified gas flow be 175Nm3/ h, the air
Coefficient of excess is 1, and combustion-supporting air quantity is 935 Nm3/h。
Embodiments in accordance with the present invention, in the step 4, the left side burner and right side burner are often by half
Combustion period carries out alternately reversing combustion-smoke evacuation.
Embodiments in accordance with the present invention, the combustion period is：Left side burner combustion-right side burner smoke evacuation-right side
Burner combustion-left side burner smoke evacuation.
The present invention at least includes following beneficial effect：Multifunctional burner device of the present invention, can use low first
Combustion value fuel realizes stabilization burning, and heat load adjustment can reach 2 times of common heat-accumulating burner than big, without the need for making
With Everlasting fire device, exhaust gas temperature secondly can be effectively reduced, improve flue gas heat recovery rate, energy-saving effect is obvious, together
When denitrating flue gas treatment measures are applied to heat storage type porous medium burner, collect denitration and energy saving integrated, effectively drop
Low nitrogen oxides in effluent discharge, system is more succinct, and comprehensive method of investment cost reduction, the porous media that the present invention takes has
Good heat storage performance, high-temperature flue gas first pass through porous medium layer, porous media is maintained higher temperature（Gaseous mixture
It is more than ignition temperature）, by the high-temperature flue gas of preliminary cooling, under the conditions of reducing agent is sprayed into, then by denitrating catalyst, finally
The nitrogen oxides in effluent content of discharge is less than 80 mg/m3, temperature can drop to less than 180 DEG C, realize " limit " of fume afterheat
Utilize, eliminate the attached pre- heat recovery equipment such as heat exchanger, fume afterheat utilization ratio is improved significantly, so as to obtain higher
Energy utilization rate and environmentally friendly efficiency, while reducing comprehensive method of investment cost, improving system stability and security performance；In addition it is of the invention
Described device can promote the temperature homogeneity in the porous media of both sides using interruption commutation type burning, realize to super-low calorific value
The stability and security of fuel combustion, can realize the height to temperature field in the limit recycling of fume afterheat and burner hearth again
Degree uniformity.
Brief description of the drawings
Fig. 1 is Multifunction combustion device structural representation of the invention.
Wherein, left side burner 1, combustion gas and air gas mixture entrance 101, exhanst gas outlet 102, heat storage 103, denitration
Catalyst zone 104, porous media area 105, high-energy igniter 106, reducing agent entrance 107, high-temperature flue gas outlet 108, body of heater 2,
Right side burner 3, combustion gas and air gas mixture feeding pipe 4, combustion gas and air gas mixture three-way diverter valve 401, combustion gas
With air Mixture fluid line 402, smoke discharge tube road 5, flue gas three-way diverter valve 501, flue gas pipeline 502.
Specific embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to specific embodiment to this
Invention is described in further detail.The embodiments described below is exemplary, is only used for explaining the present invention, without being understood that
It is limitation of the present invention.Unreceipted particular technique or condition in embodiment, according to the skill described by document in the art
Art or condition are carried out according to product description.
The present invention proposes a kind of Multifunction combustion device, and Fig. 1 is Multifunction combustion device structural representation of the invention,
Embodiments in accordance with the present invention, shown in reference picture 1, device of the present invention includes：Left side burner 1, the burning of body of heater 2, right side
Device 3, three-way diverter valve, combustion gas and air gas mixture feeding pipe 4, smoke discharge tube road 5, combustion gas and air gas mixture pipe
Line 402 and flue gas pipeline 502.
Embodiments in accordance with the present invention, shown in reference picture 1, one end of left side burner of the present invention is provided with combustion gas and sky
Oxygen mixture entrance 101 and the exhanst gas outlet 102 below the combustion gas and air gas mixture entrance, on the left side
The inside of side burner is sequentially provided with heat storage 103, denitrating catalyst area 104 and porous media area 105, the porous media area
Two ends be round platform passage, be provided with high-energy igniter 106 and reducing agent entrance 107 in round platform passage at one end, the round platform leads to
The small-bore one end in road is connected with the denitrating catalyst area, and the high-energy igniter is located at porous media area one end round platform
The top of passage and its one end stretch into the round platform passage, and the other end is located at the outside of the burner, for by the combustion gas
Carry out lighting burning with air gas mixture, the reducing agent entrance is under the round platform passage where the high-energy igniter
Side and its one end stretch into the round platform passage, and the other end is located at the outside of the burner, for being smoke evacuation when the burner
Reducing agent is passed through during side and flows through the denitrating catalyst area, carry out denitration reaction, reduce the discharge of nitrogen oxides；Porous Jie
The other end round platform passage in matter area forms high-temperature flue gas outlet 108, and the body of heater is stretched into small-bore one end of the round platform passage,
For making flue gas enter burner hearth；Some embodiments of the invention, the two ends in porous media area of the present invention are round platform
Passage, and two ends round platform passage is small-bore outwards, large aperture docks to form large inner space inwardly, for being when burner
Flue gas is provided thermal source in the substantially stabilized burning in the porous media area during combustion side, and improve the flow velocity that flue gas enters body of heater,
Flue gas is fully heated offer thermal source in the porous media area when burner is for smoke evacuation side, and make flue gas abundant with reducing agent
Mixing, reduces the amount of nitrogen oxides in discharge flue gas；The structure of the right side burner it is identical with the left side burner and
The two with the body of heater as symmetry axis, be symmetrical set in the both sides of the body of heater.
Embodiments in accordance with the present invention, the combustion gas and air gas mixture entrance and exhanst gas outlet are the pipe of DN250
Road, the heat storage is that specific surface area is 800m2/ m3Honeycomb ceramics, volume be 0.128 m3, the denitrating catalyst region is
0.15 m3, the porous media is that aperture is the foamed ceramics of 2-4mm, and the porous media region is 0.084 m3。
Embodiments in accordance with the present invention, shown in reference picture 1, the three-way diverter valve includes：Combustion gas and air gas mixture
Three-way diverter valve 401 and flue gas three-way diverter valve 501, the combustion gas and air gas mixture three-way diverter valve respectively with the combustion
Gas and air gas mixture feeding pipe, left side combustion gas and air gas mixture entrance and right side combustion gas and air gas mixture enter
Mouthful be connected, the flue gas three-way diverter valve respectively with the smoke discharge tube road, left side exhanst gas outlet and right side exhanst gas outlet phase
Even, for making the left side burner and right side burner replace reversing combustion-smoke evacuation.
Embodiments in accordance with the present invention, shown in reference picture 1, the combustion gas and air Mixture fluid line and the combustion gas and
Air gas mixture three-way diverter valve and the left and right side combustion gas are connected with air gas mixture entrance, the flue gas pipeline
It is connected with flue gas three-way diverter valve and the left and right side exhanst gas outlet, when left side is combustion side, right side burner is smoke evacuation side
When, switch the combustion gas and air gas mixture three-way diverter valve, the left side air and burning line are connected, switch flue gas three
Logical reversal valve connection right side flue gas pipeline, connection right side flue gas pipeline.
In another aspect of this invention, there is provided a kind of side burnt using Multifunction combustion device noted earlier
Method, embodiments in accordance with the present invention are comprised the following steps：The first step：When the left side burner is combustion side, right side burner
It is smoke evacuation side, switches the combustion gas and air gas mixture three-way diverter valve, the left side air and burning line is connected, through institute
State left side combustion gas and air gas mixture entrance is passed through the air and combustion gas mixing gas, the sky to the left side burner
Gas and combustion gas mixing gas sequentially pass through the left side heat storage, denitrating catalyst area and porous media area.
The thermic load scope of embodiments in accordance with the present invention, the left side and right side burner is 50 × 104kcal/h-
150×104The temperature of kcal/h, the high-temperature flue gas and burner hearth is 500-1000 DEG C, and the temperature of the low-temperature flue gas is small
In 180 DEG C；The combustion gas is that calorific value is 750 kcal/Nm3Blast furnace gas, specified gas flow be 175Nm3/ h, the air
Coefficient of excess is 1, and combustion-supporting air quantity is 935 Nm3/h。
Embodiments in accordance with the present invention, second step：The air and combustion gas mixing gas reach the left side porous media
After the round platform passage of area one end, start the high-energy igniter, light the air and combustion gas mixing gas, it is described many in left side
Hole dielectric area carries out burning and produces high-temperature flue gas, enters through the left side high-temperature flue gas outlet and heats the burner hearth, there is provided heat
Source, enters back into right side burner, and the high-temperature flue gas are by the right side porous media area and are heated, now high-temperature flue gas
Temperature drop.
Embodiments in accordance with the present invention, the 3rd step：When flue gas reaches the round platform passage of right side porous media area one end, lead to
Cross the right side reducing agent entrance and spray into reducing agent, the reducing agent enters the right side denitrating catalyst together with the flue gas
Area, carries out denitration reaction, and flowing through the heat storage by reacted flue gas further reduces flue gas own temperature, last flue gas
Right side flue gas pipeline is entered by the right side exhanst gas outlet with the state of low temperature, now switches the connection of flue gas three-way diverter valve right
Side flue gas pipeline, discharges through the smoke discharge tube road.
Embodiments in accordance with the present invention, the 4th step：Through being commutated after a while, the right side burner is burning
Side, left side burner is smoke evacuation side, and working method is identical when being combustion side with the left side burner, and both sides burner is every
Alternately reversing combustion-smoke evacuation is carried out by half combustion period.
Embodiments in accordance with the present invention, the combustion period is：Left side burner combustion-right side burner smoke evacuation-right side
Burner combustion-left side burner smoke evacuation.
Inventor has found, according to Multifunction combustion device of the present invention, collection flue gas denitration catalyst processing mode and porous
The integration of agent burns mode, solving current heat storage type porous medium burner, to discharge nitrogen oxides in effluent content high
The problems such as, porous media is filled into burner, to adapt to multi-state, big regulation ratio, electrodeless continuously adjustabe, while realizing the flames of anger
Heating, improves fire box temperature uniformity.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy
Point can in an appropriate manner be combined in one or more any embodiments or example.
In the description of the invention, it is to be understood that term " on ", D score, "left", "right", " interior ", " outward " etc. indicate
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and simplification retouch
State, rather than indicate imply signified device or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.Additionally, term " first ", " second " are only used for describing purpose, without being understood that
To indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
One or more this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, unless
It is otherwise noted, " multiple " is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Be mechanically connect, or put connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification, simultaneously for those of ordinary skill in the art, according to the think of of the application
Think, will change in specific embodiments and applications.
Claims (9)
1. a kind of Multifunction combustion device, it is characterised in that including：Left side burner, body of heater, right side burner, triplet commutation
Valve, combustion gas and air gas mixture feeding pipe and smoke discharge tube road, wherein,
One end of the left side burner is provided with combustion gas and air gas mixture entrance and mixes positioned at the combustion gas and air
Exhanst gas outlet below gas access, heat storage, denitrating catalyst area and many are sequentially provided with the inside of the left side burner
Hole dielectric area, the two ends in the porous media area are round platform passage, are provided with high-energy igniter and reduction in round platform passage at one end
Agent entrance, its small-bore one end is connected with the denitrating catalyst area, and the other end round platform passage in the porous media area is formed
The body of heater is stretched into high-temperature flue gas outlet, its small-bore one end, for making flue gas enter burner hearth, the structure of the right side burner
It is identical with the left side burner and the two with the body of heater as symmetry axis, be symmetrical set in the both sides of the body of heater；
The three-way diverter valve includes：Combustion gas and air gas mixture three-way diverter valve and flue gas three-way diverter valve, the combustion gas
It is mixed with the combustion gas and air gas mixture feeding pipe, left side combustion gas and air respectively with air gas mixture three-way diverter valve
Close gas access to be connected with right side combustion gas with air gas mixture entrance, the flue gas three-way diverter valve is arranged with the flue gas respectively
Go out pipeline, left side exhanst gas outlet to be connected with right side exhanst gas outlet, for making the left side burner and right side burner alternately change
To burning-smoke evacuation.
2. device according to claim 1, it is characterised in that the high-energy igniter is located at porous media area one end
The top of round platform passage and its one end stretch into the round platform passage, and the other end is located at the outside of the burner, for will be described
Combustion gas and air gas mixture carry out lighting burning, and the reducing agent entrance is positioned at the round platform passage where the high-energy igniter
Lower section and its one end stretches into the round platform passage, the other end is located at the outside of the burner, for being when the burner
Reducing agent is passed through during smoke evacuation side and flows through the denitrating catalyst area, carry out denitration reaction, reduce the discharge of nitrogen oxides.
3. device according to claim 1, it is characterised in that also include：Combustion gas and air Mixture fluid line and flue gas
Pipeline, the combustion gas and air Mixture fluid line and the combustion gas and air gas mixture three-way diverter valve and it is described it is left,
Right side combustion gas is connected with air gas mixture entrance, the flue gas pipeline and flue gas three-way diverter valve and the left and right side flue gas
Outlet is connected.
4. the device according to claim 1 or 3, it is characterised in that the combustion gas and air gas mixture entrance and flue gas
Outlet is the pipeline of DN250.
5. device according to claim 1, it is characterised in that the heat storage is that specific surface area is 800m2/ m3Honeycomb
Body, volume is 0.128 m3, the denitrating catalyst region is 0.15 m3, the porous media is that aperture is the foam of 2-4mm
Ceramics, the porous media region is 0.084 m3。
6. a kind of method that device using described in claim 1-5 is burnt, it is characterised in that comprise the following steps：
The first step：When the left side burner is combustion side, right side burner is smoke evacuation side, switches the combustion gas and air mixing
Gas three-way diverter valve, connects the left side air and burning line, through the left side combustion gas and air gas mixture entrance to
The left side burner is passed through the air and combustion gas mixing gas, and the air and combustion gas mixing gas sequentially pass through left side institute
State heat storage, denitrating catalyst area and porous media area；
Second step：After the air and combustion gas mixing gas reach the round platform passage of left side porous media area one end, start
The high-energy igniter, lights the air and combustion gas mixing gas, and carrying out burning in the left side porous media area produces height
Warm flue gas, enters through the left side high-temperature flue gas outlet and heats the burner hearth, there is provided thermal source, enters back into right side burner, institute
High-temperature flue gas are stated by the right side porous media area and is heated, now high-temperature flue-gas decline；
3rd step：When flue gas reaches the round platform passage of right side porous media area one end, sprayed by the right side reducing agent entrance
Enter reducing agent, the reducing agent enters the right side denitrating catalyst area together with the flue gas, denitration reaction carried out, by anti-
Flue gas after answering flows through the heat storage further reduces flue gas own temperature, and last flue gas is with the state of low temperature by right side institute
Exhanst gas outlet into right side flue gas pipeline is stated, now switches flue gas three-way diverter valve connection right side flue gas pipeline, through the flue gas
Discharge line is discharged；
4th step：Through being commutated after a while, the right side burner is combustion side, and left side burner is smoke evacuation side, work
It is identical when making that mode and the left side burner are combustion side.
7. method according to claim 6, it is characterised in that the thermic load scope of the left side and right side burner is
50×104kcal/h-150×104The temperature of kcal/h, the high-temperature flue gas and burner hearth is 500-1000 DEG C, the low temperature cigarette
The temperature of gas is less than 180 DEG C；The combustion gas is that calorific value is 750 kcal/Nm3Blast furnace gas, specified gas flow is
175Nm3/ h, the coefficient of excess air is 1, and combustion-supporting air quantity is 935 Nm3/h。
8. method according to claim 6, it is characterised in that in the step 4, the left side burner and right side are fired
Burner often carries out alternately reversing combustion-smoke evacuation by half combustion period.
9. method according to claim 8, it is characterised in that the combustion period is：Left side burner combustion-right side combustion
Burner smoke evacuation-right side burner combustion-left side burner smoke evacuation.
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| CN201611166131.2A CN106765087A (en) | 2016-12-16 | 2016-12-16 | A kind of Multifunction combustion device |
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| CN201611166131.2A CN106765087A (en) | 2016-12-16 | 2016-12-16 | A kind of Multifunction combustion device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131671A (en) * | 2018-02-13 | 2018-06-08 | 项玮 | Denitration heat-accumulating burner used for industrial furnace |
| CN108131672A (en) * | 2018-02-13 | 2018-06-08 | 项玮 | The low nitrogen nitride flat flame heat-accumulating burner of industrial furnace |
| CN108548177A (en) * | 2018-05-21 | 2018-09-18 | 北京东方雨虹防水技术股份有限公司 | Burner with fume collection function |
-
2016
- 2016-12-16 CN CN201611166131.2A patent/CN106765087A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131671A (en) * | 2018-02-13 | 2018-06-08 | 项玮 | Denitration heat-accumulating burner used for industrial furnace |
| CN108131672A (en) * | 2018-02-13 | 2018-06-08 | 项玮 | The low nitrogen nitride flat flame heat-accumulating burner of industrial furnace |
| CN108131672B (en) * | 2018-02-13 | 2024-03-12 | 项玮 | Low-nitride flat flame heat accumulating type burner of industrial furnace |
| CN108548177A (en) * | 2018-05-21 | 2018-09-18 | 北京东方雨虹防水技术股份有限公司 | Burner with fume collection function |
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