CN105509071A - Industrial combustion furnace for treating exhaust gas and waste liquid and treatment method - Google Patents
Industrial combustion furnace for treating exhaust gas and waste liquid and treatment method Download PDFInfo
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- CN105509071A CN105509071A CN201510981457.XA CN201510981457A CN105509071A CN 105509071 A CN105509071 A CN 105509071A CN 201510981457 A CN201510981457 A CN 201510981457A CN 105509071 A CN105509071 A CN 105509071A
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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
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
-
- 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
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
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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
- F23G2209/10—Liquid waste
- F23G2209/101—Waste liquor
-
- 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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- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses an industrial combustion furnace for treating exhaust gas and waste liquid and a treatment method. The combustion furnace comprises a furnace body, and the furnace body sequentially comprises a feeding area, a mixing area, a main combustion area and a rear combustion area; a center air gun, an air inlet pipeline and a waste pipeline are arranged in the feeding area; the air enters the mixing area from the center air gun and the air inlet pipeline and sequentially flows through an outer air cavity, an air deflector and a first swirling device; the exhaust gas and the waste liquid enter the mixing area from the waste pipeline and sequentially flow through a waste gun and a second swirling device; the waste gun is arranged on the outer side of the center air gun in a sleeving mode, and the waste gun and the center air gun are uniform in extension direction and are communicated with the mixing area. The method comprises the steps that a, the air enters the mixing area from the center air gun and the air inlet pipeline; b, fuel gas enters the main combustion area and is mixed with the air for combustion; c, the exhaust gas and the waste liquid enter the mixing area from the waste pipeline; d, the mixtures of the air, the exhaust gas and the waste liquid enter the main combustion area and are ignited; e, the exhaust gas and the waste liquid enter the rear combustion area after being ignited. According to the invention, the reaction area of the exhaust gas and the waste liquid and the reaction area of the oxygen are separated, the combustion time of the exhaust gas and the waste liquid and the combustion time of the oxygen are separated, the combustion efficiency is improved, and pollutant residues in tail gas are reduced.
Description
Technical field
The present invention relates to waste gas and liquids treatment field, espespecially a kind of industrial combustion furnace and processing method being applicable to process waste gas and waste liquid.
Background technology
The waste gas and liquids treatment technology of domestic and international main flow is based on high temperature incineration at present, by the residual organic matter in waste gas and waste liquid, and H
2s, NH
3cO is oxidized to etc. harmful substance
2, H
2o, SO
2, NO
2deng, then through desulfurization, reduction, the techniques such as alkali cleaning, reach
country's ringdischarge after guaranteed request.High temperature incineration is critical process flow process wherein, and the capital equipment realizing this technique is various forms of industrial combustion furnace.
To process H2
sthe sulfur recovery combustion furnace of gas is example, carries out gas analysis, can find with H at furnace exit place
2, CO be representative imperfect combustion combustible and with CS
2, COS is the intermediate product of representative, after academia analyzes the generating principle of above-mentioned four kinds, the prevailing paradigm of formation mainly comprises:
1, H
2volume accounting is about 0.1 ~ 5%, primarily of hydrogeneous component H
2s, CH
4; H
2o reaction or cracking, the stability order of three kinds of materials is H
2o>H
2s>CH
4;
2, CO volume accounting is about 0.1 ~ 5%, and for the situation having fuel gas, CO is most possibly from the imperfect combustion of CH4;
3, COS growing amount is about 0.5 ~ 2% of charging sulfur content, and main source is CO and S reaction;
4, CS
2growing amount is about 0.5 ~ 2% of charging sulfur content, mainly due to H
2s can successfully and CH
4grab O
2, cause CH
4reaction not exclusively, and then is reacted with S and is generated CS
2.
And waste gas and waste liquid combustion furnace structure form common is at present as application number: CN200720090750, CN201010266760, CN200920153761, CN200620122777, these Chinese patents described all utilize swirl-flow devices to construct Swirling Flow in combustion furnace front end, swirling motion can be strengthened sour gas and mix with the diffusion of oxidant and continuous combustion zone of being entrainmented by gaseous mixture into center, maintains recirculating zone flame and stablizes.And this design is widely used in sulphur recovery burner installation, when the combustible component in waste gas is lower, need the reaction temperature in postcombustion gas maintenance stove.Wherein, fuel gas is based on methane (CH4), and usual and waste gas coaxially enters in combustion furnace, and next-door neighbour's waste gas, causes the two overlapping with the conversion zone of oxygen, due to H
2s can successfully and CH
4grab O
2, cause CH
4reaction not exclusively, causes CS
2, the generation of CO, CO and S combines and generates COS again, unnecessary CH
4at high temperature cracking generates H
2, efficiency of combustion is lower, and combustion furnace exhaust pollutant residual quantity is high.
Be arranged on the Swirling Flow that combustion furnace front end builds in addition, along with air-flow fortune
guilddecay gradually, air velocity can be tending towards unified gradually, and when gas motion is to combustion furnace stage casing, the low speed recirculating zone at center reduces until disappear completely gradually, and the immixture of eddy flow is extremely faint.The mixing diffusion of gas can only rely on the concentration gradient of gas component to drive in this case, and molecular diffusion efficiency is very low, and the time that gas complete reaction needs is longer.
For solving above-mentioned two shortcomings, by being increased by the burner block axial dimension of traditional industrial combustion furnace, generally about 4m need be increased to.But the method be not only Site Design construction bring all Multiple Constraints, and processing and mounting cost higher.
Therefore, how in the raising scope of application, reduce on the basis of production cost, solving current industrial combustion furnace Problems existing on process waste gas and waste liquid is those skilled in the art's urgent problems.
Summary of the invention
The object of this invention is to provide a kind of industrial combustion for the treatment of waste gas and waste liquid, can avoid waste gas and fuel gas overlapping with the conversion zone of oxygen, improve efficiency of combustion, pollution residue in the outlet tail gas of effective reduction combustion furnace, shorten the time needed for reaction, and then reduction combustion furnace length.
For solving the problems of the technologies described above, the invention provides a kind of industrial combustion furnace for the treatment of waste gas and waste liquid, comprising body of heater, described body of heater is divided into feed zone, mixed zone, main combustion zone successively according to waste gas and waste liquid circulation path, and after-combustion district;
Be provided with the center air rifle axially arranged in described feed zone, and with the vertically disposed admission line of described center air gun axis line and waste pipe;
Also comprise one and be set in waste material rifle outside described center air rifle, described waste material rifle and described center air rifle all extend towards described mixed zone, and are communicated with described mixed zone, described waste material rifle and described waste pipe vertical connection;
Body of heater is divided into feed zone, mixed zone, main combustion zone in the technical program, and after-combustion district, air is divided into two parts by the center air rifle that arranges in feed zone and admission line and enters in mixed zone and enter main combustion zone again.Starting ignition system, ignite the fuel gas passed in main combustion zone, is now oxygen enrichment state in main combustion zone, most CH in fuel gas
4burn completely, the high-temperature product CO after burning
2and H
2o is constantly entrainmented the center entering main combustion zone under the effect of eddy flow.Waste gas and waste liquid enters mixed zone with swirling two-phase flows after the second cyclone, constantly mixes in mixed zone with air, arrives behind main combustion zone by the CO of high temperature
2light with H2O.Fuel gas flame zone is positioned near furnace body wall place, and waste material flame zone is positioned at the center of main combustion zone, the separation on implementation space, thus reduces waste gas and waste liquid and CH
4to O
2contention, improve efficiency of combustion, reduce intermediate product generate.
Preferably, described first cyclone is radial blade formula cyclone, is arranged between described cowling panel and described entrance to mixed zone;
Described second cyclone is transverse vane type cyclone, is arranged between the outer wall of described center air rifle and the inwall of described waste material rifle;
The blade quantity of described radial blade cyclone and described bladed axial swirler is all at 6 ~ 60, and setting angle scope is 20 ~ 60 °, make the air that enters from described admission line contrary with the eddy flow direction that the waste gas and waste liquid entered from described waste pipe produces.
Make in mixed zone " primary air that the waste material that the center air that center air rifle enters, waste pipe enter, admission line enter " form sandwich structure, make waste gas and waste liquid inwardly and center air, outwards and the continuous blending of primary air.
Preferably, the length range of described mixed zone is at 50mm ~ 200mm; Described mixed zone inwall is less than the diameter near described main combustion zone, in venturi form of tubes near the diameter of described feed zone.
The length range of mixed zone is controlled at 50mm ~ 200mm, utilize the design principle of venturi, in the contraction section that inwall reduces, mixed airflow speed increases simultaneously, prevent the flame of main combustion zone from upwards spreading into mixed zone, ablation center air, waste material rifle body; In the expansion segment that inwall increases, air velocity reduces, and contributes to maintaining flame stabilization.
Preferably, the body of heater surrounding inwall of described main combustion zone is provided with at least one ignition system and a flame detector, and equally distributed multiple spray gun, a described fuel gas spray gun of being at least separated by between described ignition system and described flame detector.
Further preferably, the number of described spray gun can be selected according to the diameter of actual body of heater, and the jet velocity of spray gun controls between 10 ~ 30m/s.The spray gun object arranged is that fuel gas is realized ejection, and the fuel gas after ejection mixes with the air entered, and recycling ignition system is lighted a fire, and can improve efficiency of combustion.
Preferably, be provided with mixing arrangement in described after-combustion district, described mixing arrangement comprises center flow channels and swirl vane.
Preferably, described swirl vane is single-stage swirl vane, and one end of described single-stage swirl vane is fixed on the outer wall of described center flow channels, and the other end and described inboard wall of furnace body are fixed;
Described single-stage swirl vane becomes an angle of inclination with the main flow direction in described center flow channels, and single-stage swirl vane described in adjacent two panels and described center flow channels, described body of heater form the first eddy flow passage;
And/or;
Described swirl vane is Multi-stage spiral blade, at least comprise first order swirl vane and second level swirl vane, a dividing wall is provided with between described first order swirl vane and second level swirl vane, one end of described first order swirl vane is fixed on described center flow channels outside, the other end and described dividing wall are fixed, one end of described second level swirl vane is fixed on described dividing wall, and the other end and described furnace interior link fixing;
Described first order swirl vane all becomes an angle of inclination with the main flow direction in described center flow channels with second level swirl vane, direction of rotation is contrary, described in adjacent two panels, first order swirl vane, center flow channels, dividing wall form the first eddy flow passage, second level swirl vane, dividing wall, inboard wall of furnace body composition second level eddy flow passage described in adjacent two panels.
The technical program, by the cooperation of center flow channels and swirl vane, improves the mixing efficiency in after-combustion district, effectively improves after-combustion efficiency and reduces intermediate product and generate, shorten the time needed for reaction, effectively accelerate reaction efficiency.And then swirl vane is set to single-stage swirl vane or Multi-stage spiral blade, owing to Multi-stage spiral blade there being the eddy flow passage in multiple different rotary direction, then the second air-flow not only changes direction after Multi-stage spiral blade, and can according to the flowing of multiple different directions, this makes the mixed effect of the second air-flow and the first air-flow better, more be conducive to the combustion reaction of the first air-flow and the second air-flow, thus effectively can change the circulating direction of air-flow further, improve the efficiency of combustion of combustion furnace.
One atomising device is set in waste material rifle described in above-mentioned technology, described atomising device displacement near side, described mixed zone, for injecting mixed zone by after Waste liquid atomization.
The center air utilizing center air rifle to enter and/or waste gas, as assisted atomization gas, are injected mixed zone by after Waste liquid atomization with the state of air inlet pipe by atomising device, and are burnt, realize the process to waste liquid, improve the scope of application of combustion furnace.
Present invention also offers a kind of processing method of the industrial combustion furnace for the treatment of waste gas and waste liquid, wherein, the described industrial combustion furnace for the treatment of waste gas and waste liquid is the industrial combustion furnace for the treatment of waste gas and waste liquid in technique scheme, and processing method comprises the steps:
A), air enters described mixed zone from described center air rifle and described admission line;
B), enter described main combustion zone after mixing to contact with fuel gas and mix, fuel gas burning;
C), waste gas and waste liquid from described waste pipe enter described mixed zone and step a) the air that constantly enters mix;
D), mixing after enter described main combustion zone after by step b) in fuel gas light;
E), the reaction that burns away is entered in described after-combustion district after burning.
Preferably, in step b, connect fuel gas in advance, fuel gas enters main combustion zone by described spray gun; Fuel gas and the air entered are blended in described main combustion zone combustion, form fuel gas flame zone, and described fuel gas flame zone is positioned near described furnace body wall place;
In step e, waste gas and waste liquid enters described main combustion zone and is formed waste material flame zone by described fuel gas flame ignition, and described waste material flame zone is positioned at the center of described main combustion zone.
Further preferably, in step e, after waste gas and waste liquid completes combustion reaction in combustion zone in the rear, after waiting the flame stabilization of described fuel gas flame zone and fuel gas flame zone, fuel gas is stopped to continue to enter described main combustion zone.
After the flame stabilization of fuel gas flame zone and fuel gas flame zone, stop fuel gas continuing to enter main combustion zone.Still can burn away when there is no fuel gas, avoiding the waste of fuel gas.
Of the present invention
a kind of industrial combustion furnace for the treatment of waste gas and waste liquid and processing method, at least bring following advantage:
1, industrial combustion furnace of the present invention, by the layout to waste material and fuel gas on-position, fuel gas burning is separated in time with on locus with waste combustion, reduces waste material and fuel gas and effectively can improve efficiency of combustion to oxygen, reduce intermediate product and generate.
2, the length of the mixed zone of industrial combustion furnace of the present invention is longer, form " center air-waste material-primary air " sandwich structure, make waste gas and waste liquid inwardly and center air, outwards and the continuous blending of primary air, effective raising mixing efficiency, component distribution is more even, improves the combustion intensity of main combustion zone.
Mixing arrangement by arranging in the after-combustion district of 3, industrial combustion furnace of the present invention improves the mixing efficiency in after-combustion district, effectively improves after-combustion efficiency, shortens the time needed for reaction, according to result of calculation, simplifies body of heater length about 30%.
4, treatment effect of the present invention improves, and the contraction in length of overall body of heater, avoids the problems such as the long place restriction caused, and reduces processing and mounting cost.
5, processing method of the present invention is simple to operate, and waste gas is identical with incineration of liquor process, is only the atomising device when disposing waste liquid by arranging, and by Waste liquid atomization process, remaining mixes, burning is all identical, and handled easily person operates.
Accompanying drawing explanation
Below in conjunction with
accompanying drawingwith detailed description of the invention, the present invention is described in further detail:
fig. 1that the present invention analyses and observe for the treatment of the structure of the industrial combustion furnace of waste gas and waste liquid
figure;
fig. 2the mixing flow field Structure Calculation effect of the present invention for the treatment of the air and waste gas waste liquid of the industrial combustion furnace of waste gas and waste liquid
figure;
fig. 3that the present invention is for the treatment of cross-sectional structure signal in the main combustion zone of the industrial combustion furnace of waste gas and waste liquid
figure;
fig. 4be
fig. 1a kind of structural representation of middle mixing arrangement
figure;
fig. 5be
fig. 1the another kind of structural representation of middle mixing arrangement
figure;
fig. 6the Field Flow Numerical Simulation effect of the industrial combustion furnace of the present invention for the treatment of waste gas and waste liquid in mixed zone
figure.
accompanying drawinglabel declaration:
Feed zone A; Mixed zone B; Main combustion zone C; After-combustion district D; Fuel gas flame zone E; Waste material flame zone F;
Body of heater 1;
Center air rifle 2;
Admission line 3; Air exocoel 31, cowling panel 32, first cyclone 33;
Waste pipe 4; Waste material rifle 41, second cyclone 42;
Fuel gas spray gun 5;
Mixing arrangement 6; Center flow channels 61; Single-stage swirl vane 62; Single-stage eddy flow passage 621; Multi-stage spiral blade 63; First order swirl vane 631; Second level swirl vane 632; Dividing wall 633; First eddy flow passage 64; Second eddy flow passage 65; Air-flow 66; First air-flow 661; Second air-flow 662;
Ignition system 7;
Flame detector 8.
Detailed description of the invention
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to use to required in embodiment or description of the prior art below
accompanying drawingbe briefly described, apparently, in the following describes
accompanying drawingonly some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also according to these
accompanying drawingobtain other
accompanying drawing.
For making
figureface is succinct, respectively
in figureonly schematically show and this
inventionrelevant part, they do not represent its practical structures as product.In addition, to make
figureface is succinctly convenient to understand, at some
in figurethere are the parts of identical structure or function, only schematically depict one of them, or only marked one of them.In this article, " one " not only represents " only this ", also can represent the situation of " more than one ".
In one embodiment of the invention, referring to
fig. 1the structure of the shown industrial combustion furnace for the treatment of waste gas and waste liquid is analysed and observe
figure, this industrial combustion furnace comprises body of heater 1, and this body of heater 1 includes feed zone A, mixed zone B, main combustion zone C, and after-combustion district D is by the process of the final waste gas and waste liquid that burnt.Wherein, be provided with the center air axially arranged in feed zone A and rob 2, and rob with center air the admission line 3 and waste pipe 4 that 2 axes normal arrange.And center air robs 2 and admission line 3 entering all for air, a small amount of air can be made directly to rob in 2 from center air and directly to enter mixed zone B, a large amount of air then enters from admission line 3, and waste pipe 4 is understood that it is enter mixed zone B for waste gas waste material." waste material that the center air entered from center air cannon 2 and waste pipe 4 enter, and from the primary air that admission line 3 enters " forms sandwich structure, waste gas and waste liquid inwardly and center air, outwards with the continuous blending of primary air, mixing raising mixing efficiency.
During concrete utilization, the air of 5% is directly robbed 2 from center air and is entered mixed zone B, by air exocoel 31, cowling panel 32 and the first cyclone 33, air is introduced in the B of mixed zone successively after the air of 95% enters from admission line 3, burn entering in main combustion zone C.And waste gas and waste liquid after entering from waste pipe 4 successively by waste material rob the 41, second cyclone 42 enter mixed zone B with robbed by center air 2 and the air that enters of admission line 3 mix, carry out Thorough combustion entering in main combustion zone C.Wherein, waste material is robbed 41 and is set in the outside that center air robs 2, and robs 2 with center air and all extend towards mixed zone B, and is communicated with mixed zone B, and waste material rifle 41 and waste pipe 4 vertical connection, and then realize air and waste gas and waste liquid is folded in wherein improves mixing efficiency.It should be noted that, the air inlet that center air robs 2 is arranged on axial entrance place, and the opening of admission line 3 and waste pipe 4 is all towards upper, and waste pipe 4 and waste material rob 41 all rob 2 axes normal with center air, can ensure that the air inlet that the air of 5% robs 2 from center air enters like this, and the air of 95% enters from admission line 3, the waste gas and waste liquid of 100% enters from waste pipe 4.Certainly in other embodiments for ensureing that center air robs the mixed effect of 2, air inlet center air can being robbed 2 is arranged to be 10 ° ~ 30 ° angles of flare with axis.
In an embodiment of the present invention, referring to
fig. 1shown in, wherein, the first cyclone 33 is radial blade formula cyclone, and this radial blade formula cyclone is arranged between cowling panel 32 and mixed zone B entrance.Second cyclone 42 is contrary with the rotary motion direction of the first cyclone 33, for bladed axial swirler, and being arranged between the outer wall of center air rifle 2 and the inwall of waste material rifle 41, the air that can realize entering from admission line 3 is contrary with the eddy flow direction that the waste gas and waste liquid entered from waste pipe 4 produces.It should be noted that the blade quantity of radial blade cyclone and transverse vane type cyclone is all at 6 ~ 60, and setting angle scope is 20 ~ 60 °.
In an embodiment of the present invention, referring to
fig. 2shown in, the length range of mixed zone B is arranged on 50mm ~ 200mm, and body of heater 1 inwall of mixed zone B is less than diameter near main combustion zone C, in venturi form of tubes near the diameter of feed zone A.Less at inner diameter
?in contraction section, mixed airflow speed increases, and prevents the flame of main combustion zone C from upwards spreading into mixed zone B, ablation center air rifle 2, waste material rifle body 41; And in the expansion segment that body of heater 1 inner diameter is larger, air velocity reduces, contribute to maintaining flame stabilization.
In an embodiment of the present invention, referring to
fig. 3shown in, body of heater 1 four perisporium of main combustion zone C arranges multiple fuel gas spray gun 5, and spray gun 5 is mainly used in fuel gas to spray.Concrete can select 2 ~ 6 spray guns 5, and effluxvelocity is about 10-30m/s, and fuel gas optimization methane (CH
4), the methane fuel gas of ejection is fully mixed with air.During actual installation, multiple spray gun 5 can be uniformly distributed, on body of heater 1 surrounding inwall, be provided with ignition system 7 and flame detector 8 simultaneously.At least to be separated by between ignition system 7 and flame detector 8 spray gun 5.Ignition system 7 lights adjacent spray gun 5 simultaneously, and flame detector 8 also can detect the flame height of adjacent spray gun 5 simultaneously, realizes the efficiency utilization of each parts, simplifies installation procedure, reaches best result of use.Certainly in other embodiments, concrete arrangement can reasonably adjust.
In an embodiment of the present invention, referring to
fig. 4be depicted as the mixing arrangement 6 be arranged in after-combustion district D, this mixing arrangement 6 comprises center flow channels 61 and swirl vane.Concrete swirl vane is single-stage swirl vane 62, and one end of single-stage swirl vane 62 is fixed on the outer wall of center flow channels 61, and the other end and body of heater 1 inwall are fixed.In conjunction with
fig. 6shown in, single-stage swirl vane 62 becomes an angle of inclination with the main flow direction in center flow channels 61, and then adjacent two panels single-stage swirl vane 62 forms single-stage eddy flow passage 621 with center flow channels 61, body of heater 1 inwall.
In another embodiment of the invention, referring to
fig. 5swirl vane is Multi-stage spiral blade 63, at least comprise first order swirl vane 631 and second level swirl vane 632, a dividing wall 633 is provided with between first order swirl vane 631 and second level swirl vane 632, one end of first order swirl vane 631 is fixed on center flow channels 61 outside, the other end and dividing wall 633 are fixed, and an end of second level swirl vane 632 is fixed on dividing wall 633, and the other end and body of heater 1 inwall link fixing.Such first order swirl vane 631 all becomes an angle of inclination with the main flow direction in center flow channels 61 with second level swirl vane 632, direction of rotation is contrary, adjacent two panels first order swirl vane 631, center flow channels 61, dividing wall 633 form the first eddy flow passage 64, adjacent two panels second level swirl vane 632, dividing wall 633, body of heater 1 inwall composition second level eddy flow passage 65.
Should be noted that; can be identical with the feature of single-stage swirl vane 62 in above-described embodiment with the feature of second level swirl vane 623 about first order swirl vane 631 in Multi-stage spiral blade 63 in this embodiment; also can adjust accordingly according to actual conditions, all within the protection domain of the application.Center flow channels 61 and single-stage swirl vane 62 in addition, and Multi-stage spiral blade 63 is made by the good ceramic material of corrosion-and high-temp-resistant, and the cross section of center flow channels 61 is circular.Certainly in other embodiments, the making material and can also adopt alloy or other material of mixing arrangement 6; The cross section of center flow channels 61 can also be pentagon, hexagon or other polygons, repeats no more herein.
Certainly, in other specific embodiments, the swirl vane in above-described embodiment can also be set to other forms, as long as it is mixed with the flow direction of main flow direction after can making to be changed by the flow direction of the air-flow 66 of swirl vane; In single-stage swirl vane 62, the number of single-stage swirl vane 62 can also be set to other numerical value, and its preferable range is 6 ~ 24, and the setting angle of single-stage swirl vane 62 can also be set to other number of degrees, and its preferable range is 20 ~ 60 °; Multi-stage spiral blade 63 can be set to the swirl vane of three swirler blade, level Four swirl vane or more progression; Concrete can be consistent with said structure, also can make certain adjustment according to actual conditions; Center flow channels 61 can be arranged according to actual needs with the circulation area ratio of swirl vane, can time of staying of control combustion furnace gas by the area ratio of adjustment central passage 61 and swirl vane.
It should be noted that center flow channels in above-described embodiment 61 and swirl vane can also adopt one-body molded, or the two shaping respectively after by swirl vane by weld or other modes are fixed on center flow channels 61 outer wall.
The industrial combustion furnace for the treatment of waste gas and waste liquid in above-described embodiment, not only can process waste gas and equally also can process waste liquid.Just waste liquid need be transformed mist formation when disposing waste liquid, then burn again after the mist of conversion is contacted with the air entered.According to this, in the exit (near B side, mixed zone) of waste material rifle 41, atomising device is set, this atomising device is used for Waste liquid atomization and sprays, and injection direction is along the axial direction (namely along waste material rifle 41 axially) of waste material rifle 41, the mode of all the other combustion system uniform treatment waste gas is consistent.It should be noted that wherein, waste material rifle 41 is used for waste gas to be passed through when processing waste gas, and passes through for waste liquid when disposing waste liquid, therefore in material because considering to adopt anticorrosion, moist material to make, concrete repeats no longer one by one.
In embodiments of the invention, additionally provide a kind of processing method of the industrial combustion furnace for the treatment of waste gas and waste liquid, particularly for the processing method of the industrial combustion furnace for the treatment of waste gas and waste liquid in above-described embodiment, concrete method comprises the steps:
A), connect air, air enters described mixed zone B successively from described center air rifle 2 and described admission line 3;
B), contact mixing at main combustion zone C, starting ignition system 7 pilot fuel gas after mixing, form fuel gas flame zone E at main combustion zone C near body of heater 1 inwall place, the high temperature CO that burning produces
2and H
2o under the effect of eddy flow by the center of entrainmenting to main combustion zone C,
as Fig. 2shown in flow field structure;
C), connect waste gas and waste liquid, waste gas and waste liquid enters described mixed zone B from described waste pipe 4 and mixes with the air constantly entered step a;
D), after waste gas and waste liquid and air mixture enter main combustion zone C, by step c high temperature CO
2and H
2o lights, and forms waste material flame zone F in D center, main combustion zone;
E), waste material enters in after-combustion district D the reaction that burns away;
Wherein, it should be noted that in step b, need connect fuel gas in advance, fuel gas enters main combustion zone C by spray gun 5; Such fuel gas and the air entered are blended in main combustion zone C combustion, form fuel gas flame zone F, ensure that fuel gas flame zone F is positioned near body of heater 1 wall place; Wherein, fuel gas is preset in main combustion zone C, and particular location can do rational adjustment according to actual needs.
In step e, waste gas and waste liquid enters main combustion zone C and is lighted formation waste material flame zone E by fuel gas flames F exiting, ensures that waste material flame zone E is positioned at the center of main combustion zone C.
In step e, after waste gas and waste liquid completes combustion reaction in after-combustion district D, after waiting the flame stabilization of fuel gas flame zone F and fuel gas flame zone E, fuel gas is stopped to continue to enter main combustion zone C.The waste of fuel gas can be avoided.
Referring to
fig. 6shown in, Flow Field Distribution before and after the mixing arrangement 6 adopting Fluid Mechanics Computation method to draw for single-stage swirl vane 62, lines represent the movement locus of fluid, can find out, the air-flow 66 of the waste gas and waste liquid after main combustion zone C burns is divided into two parts, first air-flow 661 centrally runner 61 directly passes through, and this first air-flow 661 is based on the high-temperature combustion product in the main combustion zone C of body of heater 1 leading portion; Second air-flow 662 produces rotary motion through mixing arrangement 6, and the second air-flow 662 is based on the unburned gas of low temperature and oxidant.Air-flow 66 is strengthened after mixing through mixing arrangement 6, is entrainmented to contact with high temperature gas flow 66 and burn away and react, thus the mixing efficiency of raising after-combustion district D.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1., for the treatment of an industrial combustion furnace for waste gas and waste liquid, comprise body of heater,
It is characterized in that:
Described body of heater is divided into feed zone, mixed zone, main combustion zone successively according to waste gas and waste liquid circulation path, and after-combustion district;
Be provided with the center air rifle axially arranged in described feed zone, and with the vertically disposed admission line of described center air gun axis line and waste pipe;
Also comprise one and be set in waste material rifle outside described center air rifle, described waste material rifle and described center air rifle all extend towards described mixed zone, and are communicated with described mixed zone, described waste material rifle and described waste pipe vertical connection;
A small amount of air directly enters described mixed zone from described center air rifle; Large quantity of air enters from described admission line and enters described mixed zone by air exocoel, cowling panel and the first cyclone successively; Waste gas and waste liquid enters from described waste pipe and enters described mixed zone by waste material rifle, the second cyclone successively; Described main combustion zone and described after-combustion district is entered successively after the mixing of air and waste gas waste liquid.
2. the industrial combustion furnace for the treatment of waste gas and waste liquid according to claim 1, is characterized in that:
Described first cyclone is radial blade formula cyclone, is arranged between described cowling panel and described entrance to mixed zone;
Described second cyclone is bladed axial swirler, is arranged between the outer wall of described center air rifle and the inwall of described waste material rifle;
The blade quantity of described radial blade cyclone and described bladed axial swirler is all at 6 ~ 60, and setting angle scope is 20 ~ 60 °, make the air that enters from described admission line contrary with the eddy flow direction that the waste gas and waste liquid entered from described waste pipe produces.
3. the industrial combustion furnace for the treatment of waste gas and waste liquid according to claim 1, is characterized in that:
The length range of described mixed zone is at 50mm ~ 200mm; Described mixed zone inwall is less than the diameter near described main combustion zone, in venturi form of tubes near the diameter of described feed zone.
4. the industrial combustion furnace for the treatment of waste gas and waste liquid according to claim 1, is characterized in that:
The body of heater surrounding inwall of described main combustion zone is provided with at least one ignition system and a flame detector, and equally distributed multiple spray gun, a described fuel gas spray gun of being at least separated by between described ignition system and described flame detector.
5. the industrial combustion furnace for the treatment of waste gas and waste liquid according to claim 1, is characterized in that:
Be provided with mixing arrangement in described after-combustion district, described mixing arrangement comprises center flow channels and swirl vane.
6. the industrial combustion furnace for the treatment of waste gas and waste liquid according to claim 5, is characterized in that:
Described swirl vane is single-stage swirl vane, and one end of described single-stage swirl vane is fixed on the outer wall of described center flow channels, and the other end and described inboard wall of furnace body are fixed;
Described single-stage swirl vane becomes an angle of inclination with the main flow direction in described center flow channels, and single-stage swirl vane described in adjacent two panels and described center flow channels, described inboard wall of furnace body form single-stage eddy flow passage;
And/or;
Described swirl vane is Multi-stage spiral blade, at least comprise first order swirl vane and second level swirl vane, a dividing wall is provided with between described first order swirl vane and second level swirl vane, one end of described first order swirl vane is fixed on described center flow channels outside, the other end and described dividing wall are fixed, one end of described second level swirl vane is fixed on described dividing wall, and the other end and described inboard wall of furnace body link fixing;
Described first order swirl vane all becomes an angle of inclination with the main flow direction in described center flow channels with described second level swirl vane, direction of rotation is contrary, described in adjacent two panels, first order swirl vane, center flow channels, dividing wall form the first eddy flow passage, second level swirl vane, dividing wall, inboard wall of furnace body composition second level eddy flow passage described in adjacent two panels.
7. the industrial combustion furnace for the treatment of waste gas and waste liquid according to claim 1, is characterized in that:
In described waste material rifle, an atomising device is set, described atomising device displacement near side, described mixed zone, for injecting mixed zone by after Waste liquid atomization.
8., for the treatment of a processing method for the industrial combustion furnace of waste gas and waste liquid, it is characterized in that:
The described industrial combustion furnace for the treatment of waste gas and waste liquid is the industrial combustion furnace for the treatment of waste gas and waste liquid in claim 1-7 described in any one, and processing method comprises the steps:
A), air enters described mixed zone from described center air rifle and described admission line;
B), enter described main combustion zone after mixing to contact with fuel gas and mix, fuel gas burning;
C), waste gas and waste liquid from described waste pipe enter described mixed zone and step a) the air that constantly enters mix;
D), mixing after enter described main combustion zone after by step b) in fuel gas light;
E), the reaction that burns away is entered in described after-combustion district after burning.
9. the processing method of the industrial combustion furnace for the treatment of waste gas and waste liquid according to claim 8, is characterized in that:
In step b, connect fuel gas in advance, fuel gas enters main combustion zone by described spray gun; Fuel gas and the air entered are blended in described main combustion zone combustion, form fuel gas flame zone, and described fuel gas flame zone is positioned near described furnace body wall place;
In step e, waste gas and waste liquid enters described main combustion zone and is formed waste material flame zone by described fuel gas flame ignition, and described waste material flame zone is positioned at the center of described main combustion zone.
10. the processing method of the industrial combustion furnace for the treatment of waste gas and waste liquid according to claim 9, is characterized in that:
In step e, after waste gas and waste liquid completes combustion reaction in combustion zone in the rear, after waiting the flame stabilization of described fuel gas flame zone and fuel gas flame zone, fuel gas is stopped to continue to enter described main combustion zone.
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| CN106678839A (en) * | 2016-12-15 | 2017-05-17 | 南宁广发重工集团有限公司 | High-temperature air preheating type high-temperature purifying furnace |
| CN108662594A (en) * | 2017-03-31 | 2018-10-16 | 中国石油化工股份有限公司 | A kind of incineration treatment technology of liquid chlorohydrocarbon organic mixture |
| CN108679627A (en) * | 2018-07-30 | 2018-10-19 | 江苏亨通光导新材料有限公司 | Organic silicon scrap burning processing device |
| CN109357288A (en) * | 2018-11-21 | 2019-02-19 | 贵州智慧能源科技有限公司 | It is capable of handling the rocket engine burner and power drive unit of complex component |
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| CN108679627A (en) * | 2018-07-30 | 2018-10-19 | 江苏亨通光导新材料有限公司 | Organic silicon scrap burning processing device |
| CN108679627B (en) * | 2018-07-30 | 2024-06-11 | 江苏亨通光导新材料有限公司 | Organosilicon waste material burning treatment device |
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| CN113932230B (en) * | 2020-07-14 | 2024-05-17 | 中国石油化工股份有限公司 | Incinerator, tail gas treatment device and sulfur recovery system |
| CN113932230A (en) * | 2020-07-14 | 2022-01-14 | 中国石油化工股份有限公司 | Incinerator, tail gas treatment device and sulfur recovery system |
| CN111928271A (en) * | 2020-08-11 | 2020-11-13 | 华中科技大学 | Combustor of organic waste liquid incinerator and combustion method thereof |
| CN111928271B (en) * | 2020-08-11 | 2021-11-23 | 华中科技大学 | Combustor of organic waste liquid incinerator and combustion method thereof |
| CN117029012B (en) * | 2023-08-11 | 2024-03-12 | 山东亚科环保科技有限公司 | Treatment system for waste liquid in caprolactam production |
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