CN206361927U - A kind of many spray orifice type hot-blast stoves - Google Patents
A kind of many spray orifice type hot-blast stoves Download PDFInfo
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- CN206361927U CN206361927U CN201621348782.9U CN201621348782U CN206361927U CN 206361927 U CN206361927 U CN 206361927U CN 201621348782 U CN201621348782 U CN 201621348782U CN 206361927 U CN206361927 U CN 206361927U
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Abstract
A kind of many spray orifice type hot-blast stoves, it includes burning zone and one section of mixed wind, mixed two sections of wind.The front end of burning zone is provided with main burner and provided with automatic ignition burner outside burning zone and for the circulated air induced duct to burning zone inner ventilation, mixed one section of wind includes outer cylinder body and mixes air duct with many spray orifices of the concentric metal as inner barrel of outer cylinder body, between in outer cylinder body and as many spray orifices of inner barrel mixing air duct there is annular space or annular space to be used as inlet air plenum, mixed in many spray orifices and be evenly distributed multiple spray orifices on the wall of air duct, many spray orifices as inner barrel of mixed one section of wind mix the front end of air duct and the back-end sealing of burning zone is connected, the rear end that many spray orifices mix air duct is provided with the first hot-blast outlet, the wall of the outer cylinder body of mixed one section of wind is provided with circulation wind inlet and the circulation wind inlet (6) is connected with circulation airduct.
Description
Technical field
The utility model belongs to Thermal Power Engineering Field, and in particular to a kind of many spray orifice type hot-blast stoves.
Background technology
At present, steel enterprise sintering flue gas desulfurization and denitration technique is in the majority using activated carbon (activated coke), the activity of the technique
Charcoal (activated coke) regeneration needs to carry out indirectly heat, 300 DEG C or so of flue-gas temperature after heat exchange using 500 DEG C or so flue gases.To carry
High heating efficiency, flue gas generally uses endless form, as shown in Figure 1.Hot-blast stove main function is exactly that the circulating flue gas is added again
Hot equipment.Hearth of hot-blast stove is positive pressure operation under this technique, to prevent heat smoke from emerging, the type hot-blast stove overall tightness
It is required that high.
Activated carbon dry process is that current sintering flue gas disposes main promotional technique, be can be achieved in sintering flue gas disposal process
Desulphurization and denitration, de- dioxin, removing heavy-metal, dedusting simultaneously.
System for desulfuration and denitration mainly includes charcoal absorption, activated carbon parsing and activated carbon transportation system, activated carbon supply
System, thermal cycle and richness SO2Induction system.Objectionable impurities in sintered discharge gas, is adsorbed by adsorption tower, can remove dust, again
Metal, SO2、NOx；Analytic Tower can remove dioxin and will be enriched with SO2It is transported to acid making system.Activated carbon is parsed in Analytic Tower
Cheng Zhong, it is desirable to have high-temperature flue gas carries out indirect heating.
Because the high-temperature flue gas that Analytic Tower needs is large-minded, the import and export temperature difference is relatively small, only 100~200 DEG C, to save energy
Source, at present all using circulating flue gas to Analytic Tower heat supply.
Hot-blast stove is heated to Analytic Tower low exit temperature circulating flue gas.
Existing hot-blast stove is made up of combustion chamber and wind mixed chamber, and has partition wall to separate, after combustion gas is burnt completely in combustion chamber, institute
The high-temperature flue gas of generation is mixed in wind mixed chamber with circulating cooling wind, and mixed flue gas is discharged after reaching the temperature of technological requirement, such as Fig. 2
It is shown.But existing hot-blast stove generally uses full inner lining structure, weight of equipment is larger；Chamber temperature is high, the NOx amount of high temperature generation
It is larger；Circulating cooling wind is only directly entered wind mixed chamber by one or several mouths of pipe and mixed with high-temperature flue gas, mixes wind lack of homogeneity,
Larger blending space is needed, equipment volume is larger.Type of furnace arrangement is typically only capable to, using horizontally disposed, be not suitable for vertical cloth
Put.
Because steel enterprise sintering flue gas desulfurization and denitration technique is typically that existing facility is transformed, place generally all ten
Divide anxiety, it is desirable to which equipment occupation of land is small, type of furnace arrangement meets place actual requirement as far as possible.
Utility model content
Plant-scale Analytic Tower (regenerator) typically has 20-30 meters of a height, and diameter reaches several meters to more than ten meters, right
The demand of circulating air is big, simultaneously, it is desirable to which the temperature of hot blast is matched with the resolution temperature of activated carbon.
The purpose of this utility model is for including activated carbon adsorber), Analytic Tower (regenerator) and hot-blast stove (or heat
Stove) prior art large-scale active carbon desulfurization denitrification apparatus in the problems of hot-blast stove, design new hot-blast stove, a side
Face can stably produce the hot blast of substantial amounts of suitable temperature, on the other hand, reduce the production of nitrogen oxides.
According to one side of the present utility model there is provided a kind of (horizontal or vertical) many spray orifice type hot-blast stoves, it includes
Two sections of burning zone, one section of mixed wind and mixed wind,
Wherein, the front end (i.e. initiating terminal) of burning zone is provided with automatic ignition burner provided with main burner and outside burning zone
With for the circulated air induced duct to burning zone inner ventilation；Mixed one section of the wind includes outer cylinder body and the work concentric with outer cylinder body
For inner barrel many spray orifices of metal mix air duct, outer cylinder body and as inner barrel many spray orifices mix air duct between have annular space or
Annular space as circular air inlet room, many spray orifices mix on the wall of air duct equably or be distributed substantially uniformly through it is multiple (for example
20-2000) spray orifice (fresh air inlet), mixes the front end and the rear end of burning zone of the mixed air duct of many spray orifices as inner barrel of one section of wind
It is tightly connected, the rear end that many spray orifices mix air duct is provided with the first hot-blast outlet, the wall for mixing the outer cylinder body of one section of wind is provided with circulated air
Import and the circulation wind inlet are connected with circulation airduct.
In addition, the front end of mixed two sections of wind is connected with the back-end sealing of the first hot-blast outlet, side wall or the end of two sections of wind are mixed
It is provided with the second hot-blast outlet.
Second hot-blast outlet is connected with hot blast delivery main.Circulated air induced duct and circulation airduct are respectively communicated to global cycle
Airduct.
It is preferred that, mixing one section of use of wind includes the binocular structure of inner barrel and outer cylinder body.There is annular gas between two cylinders
Body space.
It is preferred that, above-mentioned hot-blast stove also includes mixed two sections of wind, and the front end and the rear end of the first hot-blast outlet for mixing two sections of wind (are
Wind end) it is tightly connected, the side wall or end for mixing two sections of wind are provided with the second hot-blast outlet.
It is preferred that, circulated air induced duct and circulation airduct are respectively communicated to (such as from the heating zone of activated carbon Analytic Tower or cold
But area is drawn) global cycle airduct.
It is preferred that, it is additionally provided with automatic ignition burner on the side wall of the front end of burning zone；Preferably automated igniter burner burns close to main
Mouth sets or permeated unit equipment with main burner.
It is preferred that, the first hot-blast outlet or the second hot-blast outlet of hot-blast stove with (such as from the heating zone of activated carbon Analytic Tower
Drawn) hot blast delivery main connection.
It is preferred that, there is burning zone cross section to be circular or ellipse or rectangle cylinder-shaped structure, preferably with cylinder
Shape structure.
It is preferred that, mix the outer cylinder body of one section of wind and as the mixed air duct of many spray orifices of inner barrel all there is cross section to be circular or ellipse
Circular cylinder-shaped structure.
It is preferred that, the length direction and circumference of air duct are mixed along many spray orifices, the multiple spray orifice is uniformly distributed or substantially equal
It is even to be distributed on the wall of the mixed air duct of many spray orifices.
It is preferred that, during the shape of cross section of the spray orifice is circle, ellipse, triangle, quadrangle, pentagon or hexagon
One or more；It is preferred that, the shape of cross section of the spray orifice is circular.
It is preferred that, main burner is provided with combustion air interface and combustion gas interface.
It is preferred that, enter combustion chamber of hot-blast stove circulating flue gas provided with Flow-rate adjustment valve regulation on circulated air induced duct.
It is preferred that, the flue gas recirculation amount that the regulation of circulating fan inlet vane enters in hot-blast stove.Provided with stream on circulation airduct
Adjustable valve, or flow control valve is not set.
It is preferred that, temp probe and pressure probe are provided with burning zone.
In order to reduce burning zone burner hearth high-temperature region temperature, it is passed through via circulated air induced duct into burning zone from activated carbon
The circulating air of the heating zone of Analytic Tower, to reduce burning zone internal fired furnace thorax high-temperature region temperature.It is preferred that, before burning zone
Hold, along one or more (such as -1~6) air inlets of circle designs of cylinder bodily form burning zone, these air inlets are all with following
Ring wind induced duct is connected, so that the surrounding to the inner space of burning zone uniformly sprays hot blast.Or, close to main burning in burning zone
One end of mouth sets the annular wind-distributing pipe (not shown) with multiple fumaroles, so as to the four of the inner space of burning zone
All uniform injection hot blasts.
Tower apparatus is parsed there is provided a kind of activated carbon according to second embodiment of the present utility model, it includes activated carbon
Analytic Tower and above-described hot-blast stove, the wherein Analytic Tower have：The heating zone on top and the cooling zone of bottom, positioned at tower top
Be used for input activated carbon to be regenerated import and positioned at bottom of towe output regeneration activated carbon outlet；
The first hot-blast outlet or the second hot-blast outlet of wherein hot-blast stove are communicated on Analytic Tower via hot blast delivery main
The hot-wind inlet of the heating zone in portion；With
Wherein both the circulated air induced duct of hot-blast stove and circulation airduct and the hot blast of the analytically heating zone on tower top goes out
The global cycle wind that the air outlet of global cycle airduct connection that mouth is drawn or both and the analytically cooling zone of tower bottom is drawn
Pipe is connected.
Many spray orifice type hot-blast stoves that the utility model is provided, are arranged by burning zone, mixed one section of point of two parts of wind.Burning zone is
High temperature, circulated air induced duct introduces cooling circulated air, is directly added into burning zone burner hearth, appropriate reduction burning zone temperature, it is ensured that combustion
In abundant burning, fully flame temperature is unlikely to too high to gas simultaneously, reduces high temperature NOx generations.Hot blast enters mixed one section of wind afterwards,
The circulating cooling wind entered from circulation wind inlet, into the mixed space or gap between one section of air duct and mixed wind of many spray orifices, passes through
Many spray orifices mix the spray orifice on air duct, are directly mixed in uniform, low discharge mode with the high-temperature hot-air come from burning zone, limited
Realize that Quick uniform is mixed in space.
Circulating air mixes the perforate of air duct through many spray orifices, be divided into numerous small fluid streams and high temperature hot gas small space,
Mixed with high flow rate, reach that Quick uniform mixes purpose.
In circulated air induced duct, flow control valve is set, can according to the differences of the conditions such as temperature in burning zone, adjust into
Enter the circulating cooling wind flow of burning zone, reach the effect that not only saves but also can reduce NOx generations.
Optionally, or not essentially, circulation wind inlet front end sets flow control valve, can adjust and enters in mixed one section of wind
Circulating cooling wind flow, to adjust the temperature of the last hot blast flowed out from hot-blast stove.
In the utility model, burning zone inwall is provided with fire-resistant material heat insulation layer.
In the utility model, burning zone, one section of outer wall of mixed wind are provided with heat-insulation layer.
In the utility model, mix two sections of outer walls of wind and be provided with heat-insulation layer.
It is preferred that, mix one section of wind equal or approximately equivalent with the interior diameter of mixed two sections of wind.Two sections of one section of mixed wind or mixed wind it is interior
The cylinder-shaped that chamber is cylindrical shape or cross section is square or rectangular.Mix the respective length in inner chamber of two sections of one section of wind or mixed wind
Spend for 0.7-2.2 meters, preferably 0.8-2.0 meters, preferably 0.85-1.8 meters, such as 0.9,1.2,1.5 or 1.6 meters.In addition, cylindrical shape
One section of mixed wind or two sections of mixed wind inner chamber it is respective a diameter of 0.5-1.8 meters, preferably 0.6-1.7 meters, preferably 0.7-1.5 meters,
Such as 0.8,1 or 1.2 meter or 1.4 meters.Typically, the ratio between the length of inner chamber and interior diameter are 1.3-1.8:1, preferably 1.4-1.6:1.
In the utility model, refractory insulating layer only is set in burning zone inwall, using a small amount of refractory lining, hot-blast stove is overall
The structure of heat-insulation layer is set using outer wall, can effectively mitigate weight of equipment.
Preferably, being provided with temp probe and pressure probe in burning zone.
Temp probe can monitor the temperature in burning zone, so that it is determined that the circulating cooling being adapted in circulated air induced duct is distinguished and admirable
Amount.
Typically, regenerating active carbon temperature Td is preferably 400-470 DEG C at 390-500 DEG C, more preferably 405-450 DEG C, more excellent
It is selected in 410-440 DEG C, more preferably 410-430 DEG C of scope.In general, high-temperature hot-air (G0) has 1100-1900 DEG C.
Generally, input heating zone in hot blast have 400~500 DEG C, preferably 410~480 DEG C, more preferably 415-470 DEG C,
More preferably 420-460 DEG C, further preferred 420-450 DEG C of temperature.
Typically, the hot blast of outer row has 300-380 DEG C, preferably from about preferably 320-375 DEG C, 340-370 DEG C of temperature.
Analytic Tower of the present utility model is the parsing in the dry desulfurization of the exhaust-gas treatment for steel and iron industry, denitrification apparatus
Tower or regenerator, generally have 10-45 meters, preferably 15-40 meters, more preferably 20-35 meters of tower height.Desorber generally has 6-
100 meters2, preferably 8-50 meters2, more preferably 10-30 meters2, it is further preferred 15-20 meters2Body cross-section product.And desulphurization denitration
(desulphurization and denitration) adsorption tower (or reaction tower) in device generally has bigger size, and the tower height of such as adsorption tower is 15-
60, preferably 20-50, more preferably 25-45 meter.The tower height of adsorption tower refers to export at the top of adsorption tower from absorption tower bottom activated carbon
The height of the agent structure of the height of activated carbon entrance, i.e. tower.
For the design and its absorbing process of flue gas (or waste gas) adsorption tower, there are many documents to carry out in the prior art
Disclose, see, for example, US5932179, JP2004209332A, and JP3581090B2 (JP2002095930A) and
JP3351658B2 (JPH08332347A), JP2005313035A.The application is no longer described in detail.
In the utility model, do not required particularly for Analytic Tower, the Analytic Tower of prior art can be used in this reality
In new.Preferably, Analytic Tower is the vertical Analytic Tower of shell pipe type, and wherein activated carbon is inputted from tower top, flows downwardly through pipe
Journey, then reaches bottom of towe, and hot gas then flows through shell side, and hot gas enters from the side of tower, the activity with flowing through tube side
Charcoal carries out heat exchange and cooled, and is then exported from the opposite side of tower.In the utility model, particularly for Analytic Tower is no
Ask, the Analytic Tower of prior art can be used in the utility model.Preferably, Analytic Tower is shell pipe type (or package type) or row
The vertical Analytic Tower of cast, wherein activated carbon are inputted from tower top, flow downwardly through the tube side of top heating zone, are then reached at one
A cushion space between top heating zone and bottom cooling zone, then flows through the tube side of bottom cooling zone, then reaches
Bottom of towe, and hot gas (or high-temperature hot-air) then flows through the shell side of heating zone, hot gas (400-500 DEG C) analytically tower plus
The side of hot-zone enters, and cools with flowing through the activated carbon progress indirect heat exchange of heating zone tube side, then from the heating zone of tower
Opposite side output.The side for cooling down the wind analytically cooling zone of tower enters, with flowing through having parsed of cooling zone tube side, regenerating
Activated carbon carries out indirect heat exchange.After the indirect heat exchange, cooling wind is warming up to 120 ± 20 DEG C, such as from about 120 DEG C.
For the design and regeneration method of active carbon of activated carbon Analytic Tower, there are many documents to carry out in the prior art
Disclose, JP3217627B2 (JPH08155299A) discloses a kind of Analytic Tower (i.e. desorber), and it uses double seal valve, lead to lazy
Hermetic seal, screening, water cooling (referring to Fig. 3 in the patent).JP3485453B2 (JPH11104457A) discloses regenerator (ginseng
See Figure 23 and 24), preheating section can be used, double seal valve leads to noble gas, air cooling or water cooling.JPS59142824A, which is disclosed, to be come
It is used to preheat activated carbon from the gas of cooling section.Chinese patent application 201210050541.6 (Shanghai Ke Liu companies) is disclosed again
The scheme that the energy of raw tower is recycled, which uses drier 2.JPS4918355B is disclosed using blast furnace gas (blast
Furnace gas) carry out regenerated carbon.JPH08323144 A disclose the regenerator using fuel (heavy oil or light oil), use
Air-heating furnace (referring to Fig. 2 of the patent, 11- hot-blast stoves, 12- fuel supply systems).Chinese utility model
201320075942.7 are related to heater and possess the emission-control equipment (coal-fired, air heating) of the heater, referring to
Fig. 2 in the utility model patent.
Analytic Tower of the present utility model is using air-cooled.
For example, for situation of the Analytic Tower analytic ability for 20t activated carbons per hour, traditional handicraft is kept in Analytic Tower
Temperature coke-stove gas needed for 430 DEG C is about 1000Nm3/ h, combustion air is about 5500Nm3/ h, outer thermal wind exhausting is about
6000Nm3/h；Required cooling air 60000Nm3Activated carbon temperature is 140 DEG C after/h, cooling.
The utility model compared with prior art, with advantages below：
1st, many spray orifice type hot-blast stoves of the present utility model are by burning zone, one section of two parts arrangement of mixed wind.Burning zone is high temperature,
Part circulating cooling wind is directly added into burning zone burner hearth, appropriate reduction burning zone temperature, it is ensured that combustion gas is fully same in abundant burning
When flame temperature be unlikely to too high, reduce high temperature NOx generation, reach and not only save but also reduce the purpose that NOx is generated.
2nd, many spray orifice type hot-blast stoves of the utility model set many spray orifices to mix air duct body in mixed one section of wind, circulating cooling wind from
Spray orifice on air duct body is mixed by many spray orifices outside to inside, is divided into numerous small fluid streams and is quickly mixed with high temperature hot gas, is reached quick equal
Even mixing purpose, reduce hot-blast furnace equipment volume ensures outlet hot blast temperature uniformly, stably simultaneously.
3rd, in the utility model, refractory insulating layer only is set in burning zone inwall, using a small amount of refractory lining, hot-blast stove is whole
Body sets the structure of heat-insulation layer using outer wall, and radiating is less, construction and installation are convenient, can effectively mitigate weight of equipment, and hot-blast stove is mixed
Conjunction effect is good, and integral device is compact, size is small.Therefore many spray orifice type hot-blast stoves of the utility model can according to production scene needs,
Flexibly using using horizontal or vertical.
4th, many spray orifice type hot-blast stoves of the utility model use metal structure, and overall tightness is good, furnace pressure adjustable range
Extensively, it can be achieved can normally to run from zero-pressure to more than malleation 5000Pa.
Brief description of the drawings
Fig. 1 is that the include activated carbon adsorber (B), Analytic Tower (regenerator) (A) and hot-blast stove of prior art (or are heated
Stove) (1) a kind of active carbon desulfurization denitrification apparatus schematic diagram.
Fig. 2 is that the include activated carbon adsorber (B), Analytic Tower (regenerator) (A) and hot-blast stove of prior art (or are heated
Stove) (1) another active carbon desulfurization denitrification apparatus schematic diagram.
Reference in Fig. 1 and Fig. 2：
A：Analytic Tower；A01：The heating zone of Analytic Tower；A02：The cooling zone of Analytic Tower；A03：The middle transition of Analytic Tower
Area；A04：Hot air circulation blower；A05：Activated carbon cooling blower；A06：Combustion fan；A07：Coal gas (or blast furnace gas)；A08：
Activated carbon vibratory sieve；A09：Nitrogen heater；A10：Sulfur-rich gas removes acid making system；A11：Air；A12：Nitrogen；A13：Row
Put；A14：UTILIZATION OF VESIDUAL HEAT IN；A15：Discharge or UTILIZATION OF VESIDUAL HEAT IN；B：Adsorption tower；B01：Booster fan；B02：Dilute ammonia；B03：First
Activated carbon conveyer；B04：Second activated carbon conveyer；B05：Heat smoke from sintering machine；B06：Air；B07：Neat stress；
B08：Remove chimney；1：Hot-blast stove.L1：Hot blast delivery main；L2：Global cycle airduct.
Fig. 3 is the schematic diagram of existing hot-blast stove.
1 '-heat supply burner；2 '-combustion chamber；3 '-partition wall；4 '-circulating cooling wind；5 '-wind mixed chamber；6 '-flue gas discharge opening.
Fig. 4 is the schematic front view of many horizontal arrangements of spray orifice type hot-blast stove of the utility model.
Fig. 5 is the schematic top plan view of many horizontal arrangements of spray orifice type hot-blast stove of the utility model.
Fig. 6 is the schematic front view of many second of the horizontal arrangements of spray orifice type hot-blast stove of the utility model.
Fig. 7 is the schematic top plan view of many second of the horizontal arrangements of spray orifice type hot-blast stove of the utility model.
Fig. 8 is the schematic front view of many spray orifice type hot-blast stove verticals of the utility model.
Fig. 9 is the side view of many spray orifice type hot-blast stove verticals of the utility model.
Reference：The many spray orifice type hot-blast stoves of 1-；2- burning zones；3- mixes one section of wind；301- mixes the outer cylinder body of one section of wind；
Many spray orifices that 302- mixes one section of wind mix air duct；303- circular air inlets room (or making interlayer or annular space or annular space)；
304:First hot-blast outlet；The main burners of 4-；401- combustion air interfaces；402- coal gas (or combustion gas) interface；5- burning zones are followed
Ring wind induced duct；6- mixes the circulation wind inlet of one section of wind；7- circulates airduct；701：Flow control valve；8- mixes two sections of wind；801-
Two hot-blast outlets；9- automatic ignition burners；10- temp probes.
Embodiment
Fig. 1 is that the include activated carbon adsorber (B), Analytic Tower (regenerator) (A) and hot-blast stove of prior art (or are heated
Stove) (1) a kind of common active carbon desulfurization denitrification apparatus schematic diagram.
Fig. 2 is that the include activated carbon adsorber (B), Analytic Tower (regenerator) (A) and hot-blast stove of prior art (or are heated
Stove) (1) another common active carbon desulfurization denitrification apparatus schematic diagram.
The utility model provides a kind of (horizontal or vertical) many spray orifice type hot-blast stoves 1, and it includes burning zone 2, mixed wind one section 3
With two section 8 of mixed wind, the front end (i.e. initiating terminal) of burning zone 2 is provided with main burner 4 and is provided with and is used for burning outside burning zone 2
The circulated air induced duct 5 of 2 inner ventilations of section, mixing wind includes in outer cylinder body 301 and the conduct concentric with outer cylinder body 301 for one section 3
The many spray orifices of metal of cylinder mix air duct 302, and have in outer cylinder body 301 and between as many spray orifices of inner barrel mixing air duct 302
There are annular space or annular space 303 to be used as (annular) inlet air plenum, on the wall of the mixed air duct 302 of many spray orifices equably or substantially
Multiple spray orifices (i.e. fresh air inlet) are evenly distributed, many spray orifices as inner barrel for mixing one section 3 of wind mix front end and the combustion of air duct 302
The back-end sealing connection of section 2 is burnt, the rear end that many spray orifices mix air duct 302 is provided with the first hot-blast outlet 304, mixes the outer barrel of one section 3 of wind
The wall of body 301 is provided with circulation wind inlet 6 and the circulation wind inlet 6 is connected with circulation airduct 7.
In addition, the front end of two section 8 of mixed wind is tightly connected with the rear end (i.e. outlet air end) of the first hot-blast outlet 304, mixed wind two
The side wall of section 8 or end are provided with the second hot-blast outlet 801.
Second hot-blast outlet 801 is connected with hot blast delivery main L1.Circulated air induced duct 5 and circulation airduct 7 are respectively communicated with
To global cycle airduct L2.
It is preferred that, circulated air induced duct 5 and circulation airduct 7 are respectively communicated to (such as from the heating zone A01 of activated carbon Analytic Tower
Or cooling zone A02 is drawn) global cycle airduct L2.
It is preferred that, it is additionally provided with automatic ignition burner 9 on the side wall of the front end of burning zone 2；Preferably：Automatic ignition burner 9
Set close to main burner 4, or, automatic ignition burner (9) and main burner and (4) permeate unit equipment.
It is preferred that, the first hot-blast outlet 304 of hot-blast stove 1 or the second hot-blast outlet 801 with (such as from activated carbon Analytic Tower
Heating zone A01 is drawn) hot blast delivery main L1 connections.
It is preferred that, there is burning zone 2 cross section to be circular or ellipse or rectangle cylinder-shaped structure, preferably with cylinder
Shape structure.
It is preferred that, the outer cylinder body 301 that one section 3 of mixed wind and many spray orifices as inner barrel mix air duct 302 and are all with cross section
Circular or ellipse cylinder-shaped structure.
It is preferred that, the length direction and circumference of air duct 302 are mixed along many spray orifices, the multiple spray orifice is uniformly distributed or substantially
Many spray orifices are evenly distributed on to mix on the wall of air duct 302.
It is preferred that, during the shape of cross section of the spray orifice is circle, ellipse, triangle, quadrangle, pentagon or hexagon
One or more；It is preferred that, the shape of cross section of the spray orifice is circular.
It is preferred that, main burner 4 is provided with combustion air interface 401 and combustion gas interface 402.
Typically, the flue gas recirculation amount that the regulation of circulating fan A04 inlet vanes enters in hot-blast stove.Furthermore it is also possible to follow
Ring wind induced duct 5 is provided with flow control valve 501.Furthermore it is also possible to be provided with flow control valve 701 on circulation airduct 7.
It is preferred that, temp probe 10 is provided with burning zone 2.
In order to reduce the temperature of the hot blast in burning zone 2, it is passed through via circulated air induced duct 5 into burning zone 2 from work
Property charcoal Analytic Tower heating zone circulating air, to reduce the temperature of the hot blast in burning zone 2 produced by burning.It is preferred that, in combustion
Burn the front end of section, the multiple air inlets of circle designs along cylinder bodily form burning zone, these air inlets all with circulated air induced duct
Connection, so that the surrounding to the inner space of burning zone uniformly sprays hot blast.Or, it is preferable that close to main burner in burning zone 2
4 one end sets the annular wind-distributing pipe (not shown) with multiple fumaroles, so as to the four of the inner space of burning zone 2
All uniform injection hot blasts.
Tower apparatus is parsed there is provided a kind of activated carbon according to second embodiment of the present utility model, it includes activated carbon
Analytic Tower A and above-described hot-blast stove 1, wherein Analytic Tower A have：The heating zone A01 on top and the cooling zone of bottom
The outlet of the activated carbon of A02, the import for being used to input activated carbon to be regenerated positioned at tower top and the output regeneration positioned at bottom of towe；
The first hot-blast outlet 304 or the second hot-blast outlet 801 of wherein hot-blast stove 1 are communicated to via hot blast delivery main L1
The heating zone A01 on Analytic Tower A tops hot-wind inlet；With
Wherein both the circulated air induced duct 5 of hot-blast stove 1 and circulation airduct 7 are with the analytically heating zone A01's on tower A tops
The cooling zone A02 of global cycle airduct L2 that hot-blast outlet is drawn connection (as shown in fig. 1) or both with analytically tower A bottoms
Air outlet drawn global cycle airduct L2 connection (as shown in Figure 2).
As shown in fig. 1, desulphurization and denitration device includes activated carbon adsorber (B) (30 meters of tower height, cross-sectional area 120m2)
With Analytic Tower (A) (20 meters of tower height, cross-sectional area 15m2).Fig. 3 is the schematic diagram of existing hot-blast stove.
Embodiment 1
As shown in Figures 4 and 5, a kind of many spray orifice type hot-blast stoves 1 are set using horizontal, including one section 3 of burning zone 2 and mixed wind,
The front end of burning zone 2 is provided with main burner 4；The sidepiece of burning zone 2 is visited provided with circulated air induced duct 5, automatic ignition burner 9 and temperature
First 10.The front end that one section 3 of mixed wind be connected with the back-end sealing of burning zone 2, and the rear end that one section 3 of mixed wind is provided with the first hot-blast outlet
304.The side wall that one section 3 of mixed wind is provided with circulation wind inlet 6, and mixing wind includes outer cylinder body 301 and many sprays as inner barrel for one section 3
Mix air duct 302 and positioned at annular space 303 between the two in hole.The wall for the outer cylinder body 301 that one section 3 of mixed wind enters provided with circulated air
Mouthfuls 6 and the circulation wind inlet 6 be connected with circulating airduct 7.The surrounding that many spray orifices mix the wall of air duct 302 is uniformly provided with multiple spray orifices,
That is, the circumferencial direction for mixing the length direction of air duct 302 along many spray orifices and mixing air duct 302 along many spray orifices equably opens up spray
Hole.
In addition, being additionally provided with mixed wind two section 8, mixed wind is tightly connected for two section 8 with the first hot-blast outlet 301, the side that two section 8 of mixed wind
Wall is provided with the second hot-blast outlet 801.Second hot-blast outlet 801 is connected with hot blast delivery main L1.
Circulated air induced duct 5 and circulation airduct 7 are respectively communicated to global cycle airduct L2.Main burner 4 connects provided with combustion air
Mouth 401, combustion gas interface 402.Circulated air induced duct 5 is equipped with flow control valve (501 and 701) with circulation airduct 7.Burning zone 2
Inwall is equipped with heat-insulation layer provided with fire-resistant material heat insulation layer, burning zone 2, one section 3 of mixed wind, mixed two section of 8 outer wall of wind.
In actual applications, after desulfuring and denitrifying apparatus is continuously run 1 week, pass through what is conveyed from hot blast delivery main L1
Gas-sample analysis, the content of nitrogen oxides keeps 0.024vol%, and the amount of nitrogen oxides of prior art is up to
0.1vol%.Maintain 430-450 DEG C the temperature stabilization of the gas (hot blast) of hot blast delivery main L1 conveyings.
For situation of the Analytic Tower analytic ability for 20t activated carbons per hour, new technology keeps the temperature in Analytic Tower to exist
430 DEG C, required coke-stove gas is about 700Nm3/ h, combustion air is about 4000Nm3/ h, outer thermal wind exhausting is about 5000Nm3/h；It is cold
But activated carbon temperature is less than 120 DEG C after.
Embodiment 2
As shown in Figures 6 and 7, a kind of many spray orifice type hot-blast stoves 1 are set using horizontal, including one section 3 of burning zone 2 and mixed wind,
The front end of burning zone 2 is provided with main burner 4；The sidepiece of burning zone 2 is visited provided with circulated air induced duct 5, automatic ignition burner 9 and temperature
First 10.The front end that one section 3 of mixed wind be connected with the back-end sealing of burning zone 2, and the rear end that one section 3 of mixed wind is provided with the first hot-blast outlet
304.The side wall that one section 3 of mixed wind is provided with circulation wind inlet 6, and mixing wind includes outer cylinder body 301 and many sprays as inner barrel for one section 3
Mix air duct 302 and positioned at annular space 303 between the two in hole.The wall for the outer cylinder body 301 that one section 3 of mixed wind enters provided with circulated air
Mouthfuls 6 and the circulation wind inlet 6 be connected with circulating airduct 7.The surrounding that many spray orifices mix the wall of air duct 302 is uniformly provided with multiple spray orifices,
That is, the circumferencial direction for mixing the length direction of air duct 302 along many spray orifices and mixing air duct 302 along many spray orifices equably opens up spray
Hole.
First hot-blast outlet 304 of hot-blast stove 1 is connected with hot blast delivery main L1.
Circulated air induced duct 5 and circulation airduct 7 are respectively communicated to global cycle airduct L2.Main burner 4 connects provided with combustion air
Mouth 401, combustion gas interface 402.Circulated air induced duct 5 is equipped with flow control valve (501 and 701) with circulation airduct 7.Burning zone 2
Inwall is equipped with heat-insulation layer provided with fire-resistant material heat insulation layer, burning zone 2, mixed one section of 3 outer wall of wind.
Embodiment 3
As Figure 8-9, using design in the same manner as in Example 1, simply many spray orifice type hot-blast stoves 1 are set using vertical
Put.
Claims (22)
1. a kind of many spray orifice type hot-blast stoves (1), it includes burning zone (2) and one section of mixed wind (3), and the front end of burning zone (2) is provided with
Main burner (4) and provided with automatic ignition burner (9) outside the burning zone (2) and for following to burning zone (2) inner ventilation
Ring wind induced duct (5), mix one section of wind (3) include outer cylinder body (301) and with outer cylinder body (301) the concentric gold as inner barrel
Belong to many spray orifices and mix air duct (302), have between outer cylinder body (301) mixes air duct (302) with many spray orifices as inner barrel annular
Space or annular space (303) are mixed in many spray orifices and equably or essentially homogeneously divided on the wall of air duct (302) as inlet air plenum
The multiple spray orifices of cloth, many spray orifices as inner barrel for mixing one section of wind (3) mix the front end of air duct (302) and the rear end of burning zone (2)
It is tightly connected, the rear end that many spray orifices mix air duct (302) is provided with the first hot-blast outlet (304), mixes the outer cylinder body of wind one section (3)
(301) wall is provided with circulation wind inlet (6) and the circulation wind inlet (6) is connected with circulation airduct (7).
2. hot-blast stove (1) according to claim 1, it is characterised in that it includes mixed two sections of wind (8), mixes two sections of wind (8)
Front end is connected with the back-end sealing of the first hot-blast outlet (304), and the side wall of mixed two sections of wind (8) or end go out provided with the second hot blast
Mouth (801)；And/or
Circulated air induced duct (5) and circulation airduct (7) are respectively communicated to global cycle airduct (L2).
3. hot-blast stove (1) according to claim 1 or 2, it is characterised in that be additionally provided with the side wall of burning zone (2) automatic
Igniter burner (9)；And/or
The first hot-blast outlet (304) or the second hot-blast outlet (801) of hot-blast stove (1) are connected with hot blast delivery main (L1).
4. hot-blast stove (1) according to claim 3, it is characterised in that automatic ignition burner (9) is set close to main burner (4)
Put, or, automatic ignition burner (9) and main burner (4) and the unit equipment that permeates.
5. the hot-blast stove (1) according to any one of claim 1,2 or 4, it is characterised in that burning zone (2) has transversal
Face is circular or ellipse or rectangle cylinder-shaped structure；And/or
Mix the outer cylinder body (301) of wind one section (3) and as the mixed air duct (302) of many spray orifices of inner barrel all there is cross section to be circle
Or the cylinder-shaped structure of ellipse.
6. hot-blast stove (1) according to claim 3, it is characterised in that there is burning zone (2) cross section to be circular or ellipse
The cylinder-shaped structure of shape or rectangle；And/or
Mix the outer cylinder body (301) of wind one section (3) and as the mixed air duct (302) of many spray orifices of inner barrel all there is cross section to be circle
Or the cylinder-shaped structure of ellipse.
7. hot-blast stove (1) according to claim 5, it is characterised in that burning zone (2) has cylinder body structure.
8. hot-blast stove (1) according to claim 6, it is characterised in that burning zone (2) has cylinder body structure.
9. the hot-blast stove (1) according to any one of claim 1,2,4 or 6-8, it is characterised in that mix wind along many spray orifices
The length direction and circumference of cylinder (302), the multiple spray orifice are uniformly distributed or are substantially evenly distributed in many spray orifices and mixes air duct
(302) on wall.
10. hot-blast stove (1) according to claim 3, it is characterised in that the length side of air duct (302) is mixed along many spray orifices
To and it is circumferential, the multiple spray orifice is uniformly distributed or is substantially evenly distributed in many spray orifices and mixes on the wall of air duct (302).
11. hot-blast stove (1) according to claim 5, it is characterised in that the length side of air duct (302) is mixed along many spray orifices
To and it is circumferential, the multiple spray orifice is uniformly distributed or is substantially evenly distributed in many spray orifices and mixes on the wall of air duct (302).
12. the hot-blast stove (1) according to any one of claim 1,2,4,6-8,10 or 11, it is characterised in that the spray
The shape of cross section in hole is the one or more in circle, ellipse, triangle, quadrangle, pentagon or hexagon.
13. hot-blast stove (1) according to claim 3, it is characterised in that the shape of cross section of the spray orifice is circular, ellipse
One or more in circle, triangle, quadrangle, pentagon or hexagon.
14. hot-blast stove (1) according to claim 5, it is characterised in that the shape of cross section of the spray orifice is circular, ellipse
One or more in circle, triangle, quadrangle, pentagon or hexagon.
15. hot-blast stove (1) according to claim 12, it is characterised in that the shape of cross section of the spray orifice is circular.
16. the hot-blast stove (1) according to any one of claim 1,2,4,6-8,10,11 or 13-15, it is characterised in that
Main burner (4) is provided with combustion air interface (401) and combustion gas interface (402).
17. hot-blast stove (1) according to claim 3, it is characterised in that main burner (4) is provided with combustion air interface (401)
With combustion gas interface (402).
18. hot-blast stove (1) according to claim 5, it is characterised in that main burner (4) is provided with combustion air interface (401)
With combustion gas interface (402).
19. according to claim 1,2,4,6-8,10,11,13-15 or the hot-blast stove (1) any one of 17-18, its feature
It is, temp probe (10) and pressure probe is provided with burning zone (2).
20. hot-blast stove (1) according to claim 3, it is characterised in that in burning zone (2) provided with temp probe (10) and
Pressure probe.
21. hot-blast stove (1) according to claim 5, it is characterised in that in burning zone (2) provided with temp probe (10) and
Pressure probe.
22. activated carbon parses tower apparatus, it includes activated carbon Analytic Tower (A) and according to any one of claim 1-21
Hot-blast stove (1), the wherein Analytic Tower (A) has：The heating zone (A01) on top and the cooling zone (A02) of bottom, positioned at tower top
Be used for input activated carbon to be regenerated import and positioned at bottom of towe output regeneration activated carbon outlet；
Wherein the first hot-blast outlet (304) or the second hot-blast outlet (801) of hot-blast stove (1) connect via hot blast delivery main (L1)
Pass to the hot-wind inlet of the heating zone (A01) on Analytic Tower (A) top；With
The wherein heating zone of the circulated air induced duct (5) of hot-blast stove (1) and circulation airduct both (7) with analytically tower (A) top
(A01) cooling zone (A02) of global cycle airduct (L2) connection that hot-blast outlet is drawn or both with analytically tower (A) bottom
Air outlet drawn global cycle airduct (L2) connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621348782.9U CN206361927U (en) | 2016-12-09 | 2016-12-09 | A kind of many spray orifice type hot-blast stoves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621348782.9U CN206361927U (en) | 2016-12-09 | 2016-12-09 | A kind of many spray orifice type hot-blast stoves |
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| CN206361927U true CN206361927U (en) | 2017-07-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766153A (en) * | 2016-12-09 | 2017-05-31 | 中冶长天国际工程有限责任公司 | A kind of many spray orifice type hot-blast stoves |
| CN110108031A (en) * | 2019-05-30 | 2019-08-09 | 唐山金沙燃烧热能股份有限公司 | A kind of ultralow nitrogen hot-blast stove |
-
2016
- 2016-12-09 CN CN201621348782.9U patent/CN206361927U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766153A (en) * | 2016-12-09 | 2017-05-31 | 中冶长天国际工程有限责任公司 | A kind of many spray orifice type hot-blast stoves |
| CN110108031A (en) * | 2019-05-30 | 2019-08-09 | 唐山金沙燃烧热能股份有限公司 | A kind of ultralow nitrogen hot-blast stove |
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