CN107917434A - After burner for the flue gas for handling Han bioxin - Google Patents
After burner for the flue gas for handling Han bioxin Download PDFInfo
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- CN107917434A CN107917434A CN201610878157.3A CN201610878157A CN107917434A CN 107917434 A CN107917434 A CN 107917434A CN 201610878157 A CN201610878157 A CN 201610878157A CN 107917434 A CN107917434 A CN 107917434A
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- Prior art keywords
- furnace chamber
- flue gas
- burner
- handle
- cigarette
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a kind of after burner for the flue gas for being used to handle Han bioxin, including：Furnace body, furnace chamber is defined in furnace body, the upper end of furnace body is equipped with the secondary fume outlet connected with furnace chamber, the inner peripheral wall of furnace chamber is equipped with trapezoidal convex ribs, spiral stream guidance groove is extended to form along furnace chamber axial screw, the lower part of spiral stream guidance groove is equipped with a cigarette import with a cigarette outlet of primary combustion device；Injecting combustor, the burning nozzle of injecting combustor is stretched into furnace chamber, and the burning nozzle that burning nozzle is located at the interior and neighbouring cigarette import of diversion trench is located at one times that a cigarette import is more than or equal to the bore of a cigarette import in the beeline of the cigarette import in the downstream of spiral stream guidance groove extending direction and distance.The after burner of the flue gas for handling Han bioxin according to embodiments of the present invention makes flue gas mixing and burns abundant , dioxins to destroy rate higher by fire, complete decomposition, and treatment effect is more preferable.
Description
Technical field
The present invention relates to incineration technology field, and in particular to a kind of burner of processing Han bioxin flue gases, more specifically
Ground, is related to a kind of secondary burning device for being used to handle the bioxin flue gas of concentration containing Gao.
Background technology
Industrial waste and hazardous waste can be by the way of burning or metallic waste carries out pyrometallurgical smelting and handled.
Higher containing bioxin concentration in the furnace flue gas that burning produces, common purifying method can not reach discharging standards will
Ask, it is therefore desirable to second-time burning processing is carried out to the flue gas, major part dioxins materials are destroyed by fire, to ensure that subsequent purification reaches
Mark.Combustion apparatus or combustion method in correlation technique is unsatisfactory to the treatment effect of flue gas, in the flue gas after processing still
Many bioxin can be remained, effectively can not reach existing discharging standards or contamination control mark by Shi dioxins pollutant
Alignment request.
The content of the invention
It is contemplated that solve at least some of the technical problems in related technologies.For this reason, the present invention carries
A kind of after burner for the flue gas for being used to handle Han bioxin is gone out, the after burner makes flue gas mix and burn
Abundant , dioxins destroy rate higher by fire, complete decomposition, and fume treatment effect is more preferable.
The after burner for being used to handle the flue gas of Han bioxin according to embodiments of the present invention, including：Furnace body, it is described
Furnace chamber is defined in furnace body, the upper end of the furnace body is equipped with the secondary fume outlet connected with the furnace chamber, the inner circumferential of the furnace chamber
Wall is equipped with the spiral stream guidance groove extended along its axial screw, and the lower part of the spiral stream guidance groove is equipped with and primary combustion device
A cigarette outlet a cigarette import；Injecting combustor, the burning nozzle of the injecting combustor stretch into described
In furnace chamber, the burning nozzle adjacent to a cigarette import and is located at a cigarette import the prolonging in the spiral stream guidance groove
Stretch the upstream side in direction.
The after burner of flue gas for handling Han bioxin according to embodiments of the present invention makes flue gas mix and burn
That burns abundant , dioxins materials destroys rate higher by fire, and complete decomposition, fume treatment effect is more preferable, makes secondary flue gas remaining two
Evil English contents are less, fully achieve existing discharging standards or the requirement of contamination control standard.
In addition, the after burner according to the above embodiment of the present invention for being used to handle the flue gas containing bioxin can be with
With technical characteristic additional as follows：
According to some embodiments of the present invention, the extending direction of the spiral stream guidance groove is relative to the axial of the furnace chamber
Inclined angle alpha is 45 degree to 60 degree.
According to some embodiments of the present invention, the inner peripheral wall of the furnace chamber is equipped with spiral convex rib, the spiral stream guidance
Groove is limited by the inner peripheral wall of the spiral convex rib and the furnace chamber that are connected as a single entity.
According to some embodiments of the present invention, the injecting combustor includes at least one, the injecting combustor
Between two adjacent spiral convex ribs and forward air stream outlet and forward airflow direction, when the injecting combustor is one
When a, the injecting combustor is arranged on the opposite of a cigarette import, when the inspirator includes multiple,
Multiple injecting combustors the furnace body circumferential direction it is first-class set up separately put.
According to some embodiments of the present invention, the burning nozzle of the injecting combustor of a neighbouring cigarette import
Positioned at the downstream of extending direction of the cigarette import in the spiral stream guidance groove, and apart from the most short of a cigarette import
Distance is more than or equal to one times of the bore of a cigarette import.
According to some embodiments of the present invention, the injecting combustor is two, two injecting combustors
Burning nozzle is located at the radially opposite sides of the furnace chamber, and the burning nozzle is relative to the axial inclination angle of the furnace chamber and described
The extending direction of spiral stream guidance groove is identical relative to the axial inclined angle alpha of the furnace chamber.
According to some embodiments of the present invention, the inner peripheral wall of the furnace chamber is equipped with flame retardant coating, the spiral convex rib with
The flame retardant coating is made of refractory material of the same race.
According to some embodiments of the present invention, after burner further includes：Smoke-intake pipe, the side wall of the furnace body are equipped with
Installation through-hole, the smoke-intake pipe stretch into the furnace chamber from the installation through-hole, the outlet of the smoke-intake pipe be formed as it is described once
Cigarette import.
According to some embodiments of the present invention, the smoke-intake pipe includes：Horizontal pipe section, the horizontal pipe section are plugged in described
In installation through-hole；Tilt pipeline section, described one end for stretching into the furnace chamber for tilting pipeline section and being located at the horizontal pipe section, the inclination
Pipeline section upwardly and inwardly tilts extension, and the outlet for tilting pipeline section is formed as a cigarette import and adjacent to the furnace chamber
Inner peripheral wall, a smoke inlet relative to the axial inclination angle of the furnace chamber be same as the spiral stream guidance groove with it is described
The axial angle of furnace chamber.
According to some embodiments of the present invention, the lower end of the furnace body is equipped with the slag notch connected with the furnace chamber, described
The controllable thermal baffle of activity is equipped with slag notch, the thermal baffle is movably connected with the furnace body and suitable in lime-ash
Under the action of activity and change the aperture area of the slag notch.
According to some embodiments of the present invention, after burner further includes：Base, the converter body support is in the base
On, the base is equipped with gathering hole；Waste residue collection device, the waste residue collection device are movably located in the gathering hole
And suitable for accepting the lime-ash from slag notch discharge.
According to some embodiments of the present invention, the lower part of the inner peripheral wall of the furnace chamber is prolonged formed with inwardly and downwardly inclination
That stretches leads plastering cover.
According to some embodiments of the present invention, the secondary fume exit ensures that secondary flue gas is stopped in furnace chamber more than 2
Second and equipped be used for detect 850 DEG C -1200 DEG C of smoke temperature degree temperature-detecting device and with injecting combustor joint control.
According to some embodiments of the present invention, the secondary fume outlet is connected with flue gas waste heat recovery apparatus.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Fig. 1 is the structure diagram of after burner according to embodiments of the present invention.
Reference numeral：
After burner 100；
Furnace body 10；Cigarette import 101；Secondary fume outlet 102；Spiral stream guidance groove 103；Spiral convex rib 104；Slag notch
105；Lead plastering cover 106；Lead cigarette face 107；Furnace chamber 110；
Injecting combustor 20；
Smoke-intake pipe 30；Horizontal pipe section 31；Tilt pipeline section 32；
Base 40；Gathering hole 401；
Waste residue collection device 50；
Temperature-detecting device 60.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention, ability
The those of ordinary skill in domain above-described embodiment can be changed, be changed within the scope of the invention, replaced and modification.
The secondary combustion for being used to handle the flue gas of Han bioxin according to embodiments of the present invention is described in detail below in conjunction with the accompanying drawings
Burn device 100.
With reference to shown in Fig. 1, the after burner 100 for being used to handle the flue gas of Han bioxin according to embodiments of the present invention
Including furnace body 10 and injecting combustor 20.
Furnace chamber 110 is defined in furnace body 10, the upper end of furnace body 10 is equipped with secondary fume outlet 102, secondary fume outlet 102 and stove
Chamber 110 connects.The inner peripheral wall of furnace chamber 110 is equipped with spiral stream guidance groove 103 and a cigarette import 101,103 edge of spiral stream guidance groove
The axial screw extension of furnace chamber 110, the lower part of spiral stream guidance groove 103 is equipped with a cigarette import 101, a cigarette import 101 and one
Cigarette outlet of secondary burner, the cigarette formed in primary combustion device can by a cigarette outlet discharge,
And entered by a cigarette import 101 in furnace chamber 110.
Wherein, when a cigarette is flowed into from a cigarette import 101, the cigarette formed by primary combustion can enter
In spiral stream guidance groove 103, and flow up to form turbulent flow in 110 inside spin of furnace chamber under the guide functions of spiral stream guidance groove 103,
Since the space at the middle part of furnace chamber 110 is still straight-through up and down, can have flue gas while turbulent flow is ensured faster
Flowing velocity, while be conducive to the whereabouts of lime-ash, avoid flue gas and lime-ash from being deposited in spiral stream guidance groove 103,10 work of furnace body
Make reliable, operational effect stabilization.
Alternatively, a cigarette import 101 can be directly arranged in the inner peripheral wall of furnace chamber 110, can also be by furnace chamber
Installation through-hole is set in 110 inner peripheral wall, and smoke-intake pipe 30 is plugged into furnace chamber 110 from installation through-hole, makes flue gas can be with
It is flowed into by smoke-intake pipe 30 in furnace chamber 110, the outlet of smoke-intake pipe 30 is formed as a cigarette import 101.Wherein, a cigarette import
101 specific set can flexibly be set according to actual conditions.
The burning nozzle of injecting combustor 20 is stretched into furnace chamber 110, and burning nozzle adjacent to a cigarette import 101 and is located at
Cigarette import 101 is in the upstream side of the extending direction of spiral stream guidance groove 103.That is, burning nozzle is located at furnace chamber 110
It is interior, and close to a cigarette import 101, from the extending direction of spiral stream guidance groove 103, burning nozzle is located at a cigarette import
101 rear, the in other words downstream on flow of flue gas direction.Thus, can pass through from the flue gas of a cigarette import 101 outflow
Burn nozzle, realizes second-time burning.
Injecting combustor 20 is a kind of device for integrating injection structure and burning structure, and burning nozzle not only can be with
Flame is burnt, and with spray fuel or waste and combustion-supporting gas a cigarette and combustion-supporting gas etc. can be allow to be mixed simultaneously
Realize burning, flammability is good.The injection situation of burning nozzle, for example, which kind of material specifically sprayed into furnace body 10, using which kind of
Speed injection etc. can be configured as the case may be.
Due to keeping straight up and down formed with the furnace chamber 110 with spiral stream guidance groove 103, the middle part of furnace chamber 110 in furnace body 10
Logical, the periphery of furnace chamber 110 forms spiral stream guidance groove 103, when a flue gas is entered in furnace chamber 110 from a cigarette import 101,
Spiral under the guide functions of spiral stream guidance groove 103 can flow up, a flue gas can be formed one flow up it is disorderly
Stream, and the equal spiral stream guidance groove 103 before and after the nozzle that burn, allows flue gas to keep more than two seconds at the nozzle that burns, and one
Secondary flue gas can more fully hereinafter mix combining combustion when flowing at burning nozzle with generations such as fuel and combustion-supporting gases, make two Evil
The decomposition of English is more complete.
Wherein, the spiral stream guidance groove 103 before the nozzle that burns can be calculated by an exhaust gas volumn, and flue-gas temperature is generally
Less than 850 DEG C, burn nozzle after spiral stream guidance groove 103 can be by secondary fume air volume calculation, flue-gas temperature is generally 1200 DEG C
More than, and Temperature Distribution is more balanced.At this time, following state can be met in furnace body 10：More than 1100 DEG C are maintained, flue gas stops two
More than second, while flue gas keeps turbulent condition.Thus, it is possible to ensure that a flue gas can more fully burn, two Evil in flue gas
English class material can be substantially oxidized decomposition.
The after burner 100 for being used to handle the flue gas of Han bioxin according to embodiments of the present invention, by furnace chamber
Spiral stream guidance groove 103 and injecting combustor 20 etc. are set in 110 so that 110 section temperature distributing equilibrium of furnace chamber, flue gas mix
Closing and burning abundant , dioxins and destroy rate higher , dioxins materials by fire can have fully by oxygenolysis more than 99.9%
The advantages that treatment effect is more preferable, process range is wide and operational effect stablizes.
Inventor has carried out numerous studies to the helix degree of spiral stream guidance groove 103 and has had been surprisingly found that：When spiral stream guidance groove
When 103 extending direction is spent relative to the axial inclined angle alpha of furnace chamber 110 for 45 degree -60, i.e. the extension of spiral stream guidance groove 103
Direction is inclined upwardly 30 degree -45 relative to horizontal direction when spending, and a cigarette burning is more abundant, almost without two Evil in secondary flue gas
English remains, and fume treatment effect is good.For example, in some specific examples of the present invention, the extending direction of spiral stream guidance groove is opposite
In furnace chamber 110 axial inclined angle alpha be 47 degree, 50 degree, 52 degree, 55 degree and 57 degree etc..As shown in Figure 1, of the invention real
In the after burner 100 for applying example, the axial direction of furnace chamber 110 is the axial direction of furnace body 10, and alternatively, the axial direction of furnace chamber 101 can
Think vertical direction, as shown in phantom in Figure 1.
As shown in Figure 1, can be equipped with spiral convex rib 104 in the inner peripheral wall of furnace chamber 110, spiral stream guidance groove 103 can be by being linked as
The trapezoidal spiral convex rib 104 and the inner peripheral wall of furnace chamber 110 of one limit.Thus, relatively easy to manufacture spiral stream guidance groove
103, without carrying out grooving on furnace body 10, it is damaged to avoid furnace body 10, while can also play the role of reinforcing furnace body 10.
Can be equipped with flame retardant coating to improve the fire resistance of furnace body 10, in the inner peripheral wall of furnace chamber 110, spiral convex rib 104 with it is resistance to
Fire bed can be made of refractory material of the same race.Thus, the fire resistance of furnace body 10 and spiral convex rib 104 is strong, is hardly damaged, and
When being laid with flame retardant coating on furnace body 10 spiral convex rib 104 can be installed at the same time, construction is easily manufactured, and spiral convex rib 104 with
10 associativity of furnace body is good, and structural stability is strong.
As shown in Figure 1, the cross section of spiral convex rib 104 is formed as trapezoidal, i.e., trapezoidal convex ribs, trapezoidal upper bottom surface is neighbouring
The center of furnace chamber 110, trapezoidal bottom surface are the interior sidewall surface of furnace body 10.Thus, the upper side of spiral convex rib 104 and downside
It can be formed as inclined-plane, not only make the opening size of spiral stream guidance groove 103 larger, be conducive to the smooth outflow of flue gas, and fall
Product on spiral convex rib 104 can be avoided under self gravitation effect swimmingly under inclined-plane stream by falling on the lime-ash on spiral convex rib 104
Ash, reduces the cleaning to furnace chamber 110, and treatability is good.
Injecting combustor 20 may include at least one, and injecting combustor 20 is located at two adjacent spiral convex ribs 104
Between and forward airflow direction, that is to say, that inspirator 20 is located in spiral stream guidance groove 103 and goes out towards secondary fume
The direction of mouth 102 tilts.When inspirator 20 includes multiple, multiple injecting combustors 20 are in the circumferential direction of furnace body 10
Can decile set, i.e., multiple inspirators 20 are equally spaced in the circumferential direction of furnace body 10.
Alternatively, when injecting combustor 20 is one, which may be arranged at a cigarette import 101
Opposite and forward airflow direction, i.e., tilted to the direction of secondary fume outlet 102；When inspirator 20 is two, two
A injecting combustor 20 in the axial direction of furnace chamber 110 can furnace chamber 110 both sides and forward airflow direction.Work as injecting combustor
20 when being three, and three injecting combustors 20 can be in that decile is arranged and forward airflow direction in the plane, i.e., along furnace body
10 circumferential direction is evenly spaced apart distribution, and is tilted towards secondary fume outlet 102, to improve combustion efficiency, further reduces cigarette
The content of gas Zhong bioxin.
According to some embodiments of the present invention, the burning nozzle of the injecting combustor 20 of a neighbouring cigarette import 101 can
A cigarette import 101 is provided in the downstream of the extending direction of spiral stream guidance groove, and cigarette import of nozzle distance of burning
101 beeline can be more than or equal to one times of the bore of a cigarette import 101, and to be conducive to, the formation of combustion-gas flow is spiral to be led
Stream.
In the embodiment shown in fig. 1, injecting combustor 20 is two, the burning nozzle of two injecting combustors 20
The radially opposite sides of furnace chamber 110 are located at, and two burning nozzles are spaced apart in the up-down direction by spiral convex rib 104, thus, two
A injecting combustor 20 is different in tandem, not only facilitates arrangement and installation operation, but also a smoke combustion effect more step carries
High , bioxin residual is less.Preferably, burning nozzle is also α relative to the axial inclination angle of furnace chamber 110.Thus, it is possible to
Ensure the combustion efficiency of the more preferable eddy flow of flue gas, Shi bioxin is fully destroyed by fire.
Alternatively, smoke-intake pipe 30 may include horizontal pipe section 31 and tilt pipeline section 32, as shown in Figure 1, horizontal pipe section 31 is from stove
The installation through-hole of the side wall of body 10 is extend into furnace chamber 110, is tilted pipeline section 32 and is located at stretch into furnace chamber 110 the one of horizontal pipe section 31
End, i.e., the inner of horizontal pipe section 31, the outer end of horizontal pipe section 31 are located at outside furnace body 10.Thus, it is more convenient to be attached operation.
Tilt pipeline section 32 relative to furnace chamber 110 axially upwards and slope inwardly extend, inward-pointing is from the outside towards furnace body 10
To the direction of the inside of furnace body 10, at this time, the outlet for tilting pipeline section 32 is formed as a cigarette import 101, and one time smoke inlet 101 is adjacent
The inner peripheral wall of nearly furnace chamber 110.
Thus, the opening direction of a cigarette import 101 is substantially identical with the extending direction of spiral stream guidance groove 103, guides edge
Spiral stream guidance groove 103 extends into cigarette, flue gas is more likely formed turbulent and smoke distribution evenly, is conducive to be substantially reduced in flue gas
The residual of bioxin.Preferably, the outlet direction of a smoke inlet 101 can phase relative to the axial inclination angle of furnace chamber 101
The axial angle of spiral stream guidance groove 103 and furnace chamber 110 is same as, to ensure preferably to form eddy flow effect into cigarette.
As shown in Figure 1, the lower end of furnace body 10 can be equipped with slag notch 105, slag notch 105 is connected with furnace chamber 110.Slag notch
It is equipped with thermal baffle at 105, thermal baffle is movably connected with furnace body 10 and activity and can change under the action of lime-ash
Become the aperture area of slag notch 105.Thus, slag notch 105 can change size with the activity of thermal baffle；In normal condition
Under, thermal baffle can block at least a portion of slag notch 105, make the aperture area of slag notch 105 smaller, or slag notch
105 can completely close.
Thus, it is possible to avoid the refluence of flue gas and combustion-supporting gas etc., while reduce scattering and disappearing for heat, have lead cigarette, every
Heat and resistance vapour function；Smoke combustion can produce lime-ash, and lime-ash can be fallen on thermal baffle downwards, when poly- on thermal baffle
After collecting a certain amount of dust, thermal baffle can rotate down under the effect of gravity, so that 105 opening degree of slag notch becomes larger,
Dust can be leaked out from slag notch 105.In certain specific embodiments of the invention, thermal baffle in its natural state can be with
Extend obliquely downward, as shown in Figure 1.Thus, it is possible to it is more smooth lime-ash is fallen.
Further, after burner 100 can also include base 40 and waste residue collection device 50.Furnace body 10 is supported on
On base 40, base 40 is equipped with gathering hole 401, and waste residue collection device 50 is movably located in gathering hole 401 and can be with
Accept the lime-ash discharged from slag notch 105.Thus, it is possible to allow lime-ash from going out by adjusting the position of waste residue collection device 50
Cinder notch 105 is directly fallen in waste residue collection device 50, after a certain amount of lime-ash is gathered in waste residue collection device 50, can be incited somebody to action
Waste residue collection device 50 removes gathering hole 401, lime-ash is removed after burner 100, lime-ash treatability is good.Alternatively,
Waste residue collection device 50 can be collecting cart.
As shown in Figure 1, the lower part of the inner peripheral wall of furnace chamber 110 can lead plastering cover formed with inwardly and downwardly inclination extension
106, lead plastering cover 106 and be extended relative to the axially downwardly inclination of furnace body 10.Thus, the lime-ash to drop downwards can lead ash
It is easier to drop to slag notch 105 under the guiding in face 106, ash discharge is good.Alternatively, the top of the inner peripheral wall of furnace chamber 110 can
Cigarette face 107 is led formed with what is extended upwardly and inwardly.Thus, the secondary flue gas flowed up can lead the effect in cigarette face 107
Under more swimmingly from 102 outflow of secondary fume outlet, smoke is good.
Wherein, the angle of inclination led plastering cover 106 and lead cigarette face 107 can be configured as the case may be, for example, root
According to some embodiments of the present invention, lead plastering cover 106 and lead value of the cigarette face 107 relative to the axial angle of inclination of furnace chamber 110
Scope is 30 degree of -60 degree, for example, angle of inclination can be 45 degree.
In certain specific embodiments of the invention, it must ensure at the secondary fume outlet 102 of after burner secondary
Flue gas is stopped in furnace chamber 110 more than 2 seconds and equipped with for detecting that smoke temperature degree reaches 850 DEG C -1200 DEG C of temperature detection dress
Put 60 and with 20 joint control of injecting combustor.That is, in the present invention it is possible to by controlling the big of secondary fume outlet 102
It is small, so that secondary flue gas can stop 2 seconds in furnace chamber 110, and it can be equipped with secondary fume outlet 102 and be used to detect smoke temperature degree
Temperature-detecting device 60, the scope of smoke temperature is 850 DEG C -1200 DEG C, temperature-detecting device 60 and injecting combustor 20
Joint control, two can cooperate with each other, and ensure preferable combustion efficiency.
Temperature-detecting device 60 can detect the smoke temperature of after burner 100, to facilitate adjustment second-time burning dress
Put 100 working status.For example, the combustion state and fuel supply feelings of injecting combustor 20 can be adjusted according to smoke temperature
Condition and a cigarette import 101 into cigarette speed etc., to ensure that flue gas can be maintained at 850 DEG C of -1200 DEG C of abundant combustion states.
In the specific example of the present invention, temperature-detecting device 60 is 850 DEG C -1200 DEG C of thermometer.
In practice, secondary fume outlet 102 can be connected with flue gas waste heat recovery apparatus.Thus, it is possible to the heat to secondary fume
Amount is recycled, and reduces energy waste.
In conclusion after burner 100 according to embodiments of the present invention can be used for the flue gas for handling Han bioxin,
A particularly flue gas of the bioxin containing high concentration, one time flue gas can enter furnace chamber 110 by a cigarette import 101, lead to
Crossing spiral stream guidance groove 103 makes flue gas to form turbulent flow in furnace body 10, makes dioxin pollutant and more than 1100 degrees Celsius
Oxygen in high temperature air is sufficiently mixed Qie dioxins pollutant and can keep at high temperature more than two seconds, reaches complete oxidation point
The effect of solution.
After burner 100 according to embodiments of the present invention has high treating effect, process range is wide, treatment effect is steady
The advantages that determining.After burner 100 according to embodiments of the present invention can effectively handle various incineration flue gas, such as live
Flue gas of refuse burning, industrial waste incineration flue gas, dangerous waste incineration flue gas, secondary metal furnace flue gas and metal sludge pyrogenic process
Furnace flue gas etc. is recycled, and substantially stabilized processing bioxin effect can be obtained.Handled by the after burner 100
Incineration flue gas afterwards, can greatly reduce dioxin in flue gas original concentration, ensure that tail gas is more prone to stably reach《Life rubbish
Rubbish burns contamination control standard》With《Dangerous waste incineration contamination control standard》Deng emission request.
Other of after burner 100 according to embodiments of the present invention form and operate the common skill for this area
It is knowable for art personnel, is not described in detail herein.
In the description of the present invention, it is to be understood that term " on ", " under ", "front", "rear", " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outer ", " axial direction ", " radial direction ", " circumferential direction " are based on shown in attached drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the description of the present invention, " multiple " are meant that at least two, such as two, three etc., are limited unless otherwise clearly specific
It is fixed.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Unless otherwise clear and definite
Regulation and restriction, the term such as term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected,
Can be detachably connected, or integrally；It can be directly connected, can also be indirectly connected by intermediary, can be two
Interaction relationship of connection or two elements inside a element etc., those of ordinary skill in the art can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of this specification, the description of reference term " embodiment " or " example " etc. mean to combine the embodiment or
Example particular features, structures, materials, or characteristics described are contained at least one embodiment of the present invention or example.To upper
The schematic representation for stating term is necessarily directed to identical embodiment or example.Moreover, description specific features, structure,
Material or feature may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, in not mutual lance
In the case of shield, different embodiments or example and different embodiments or exemplary feature described in this specification can carry out
With reference to and combination.
Claims (14)
- A kind of 1. after burner for the flue gas for being used to handle Han bioxin, it is characterised in that including：Furnace body, furnace chamber is defined in the furnace body, and the upper end of the furnace body is equipped with secondary fume connect with the furnace chamber and exports, institute The inner peripheral wall for stating furnace chamber is equipped with the spiral stream guidance groove extended along its axial screw, the lower part of the spiral stream guidance groove be equipped with Cigarette import of cigarette outlet of primary combustion device；Injecting combustor, the burning nozzle of the injecting combustor are stretched into the furnace chamber, and the burning nozzle is adjacent to institute State a cigarette import and positioned at the upstream side of extending direction of the cigarette import in the spiral stream guidance groove.
- 2. the after burner of the flue gas according to claim 1 for being used to handle Han bioxin, it is characterised in that described The extending direction of spiral stream guidance groove is 45 degree to 60 degree relative to the axial inclined angle alpha of the furnace chamber.
- 3. the after burner of the flue gas according to claim 1 for being used to handle Han bioxin, it is characterised in that described The inner peripheral wall of furnace chamber is equipped with spiral convex rib, and the spiral stream guidance groove is by the spiral convex rib being connected as a single entity and the furnace chamber Inner peripheral wall limit.
- 4. the after burner of the flue gas according to claim 3 for being used to handle Han bioxin, it is characterised in that described Injecting combustor includes at least one, the injecting combustor between two adjacent spiral convex ribs and forward air-flow Outlet, when the injecting combustor is one, the injecting combustor is arranged on the opposite of a cigarette import, when The inspirator include it is multiple when, multiple injecting combustors the furnace body circumferential direction it is first-class set up separately put.
- 5. the after burner of the flue gas according to claim 4 for being used to handle Han bioxin, it is characterised in that neighbouring The burning nozzle of the injecting combustor of smoke inlet is located at a smoke inlet in the spiral stream guidance groove Extending direction downstream, and be more than or equal to the bore of the cigarette import apart from the beeline of a cigarette import One times.
- 6. the after burner of the flue gas according to claim 5 for being used to handle Han bioxin, it is characterised in that described Injecting combustor is two, and the burning nozzle of two injecting combustors is located at the radially opposite sides of the furnace chamber, described Burning nozzle is relative to the axial inclination angle of the furnace chamber and the extending direction of the spiral stream guidance groove relative to the furnace chamber Axial inclined angle alpha it is identical.
- 7. the after burner of the flue gas according to claim 3 for being used to handle Han bioxin, it is characterised in that described The inner peripheral wall of furnace chamber is equipped with flame retardant coating, and the spiral convex rib is made with the flame retardant coating of refractory material of the same race.
- 8. the after burner of the flue gas according to claim 1 for being used to handle Han bioxin, it is characterised in that also wrap Include：For making cigarette enter the smoke-intake pipe of the furnace body, the side wall of the furnace body is equipped with installation through-hole, the smoke-intake pipe from The installation through-hole stretches into the furnace chamber, and the outlet of the smoke-intake pipe is formed as a cigarette import.
- 9. the after burner of the flue gas according to claim 8 for being used to handle Han bioxin, it is characterised in that described Smoke-intake pipe includes：Horizontal pipe section, the horizontal pipe section are plugged in the installation through-hole；Tilt pipeline section, described one end for stretching into the furnace chamber for tilting pipeline section and being located at the horizontal pipe section, the inclination pipeline section phase For furnace chamber axially upwards and the extension that slopes inwardly, the outlet for tilting pipeline section are formed as a cigarette import and neighbouring The inner peripheral wall of the furnace chamber, a smoke inlet are same as described spiral lead relative to the axial inclination angle of the furnace chamber The axial angle of the extending direction of chute and the furnace chamber.
- 10. the after burner of the flue gas according to claim 1 for being used to handle Han bioxin, it is characterised in that institute The lower end for stating furnace body is equipped with the slag notch connected with the furnace chamber, and the controllable thermal baffle of activity, institute are equipped with the slag notch Thermal baffle is stated with the furnace body to be movably connected and be suitable for the activity under the action of lime-ash and change opening for the slag notch Open area.
- 11. the after burner of the flue gas according to claim 10 for being used to handle Han bioxin, it is characterised in that also Including：Base, for the converter body support on the base, the base is equipped with gathering hole；Waste residue collection device, the waste residue collection device are movably located in the gathering hole and slag tap suitable for accepting from described The lime-ash of mouth discharge.
- 12. the after burner of the flue gas according to claim 10 for being used to handle Han bioxin, it is characterised in that institute Plastering cover is led formed with what is extended downwardly and inwardly in the lower part for stating the inner peripheral wall of furnace chamber.
- 13. the after burner of the flue gas according to claim 1 for being used to handle Han bioxin, it is characterised in that institute State secondary fume outlet be adapted to ensure that secondary flue gas is stopped in furnace chamber more than 2 seconds and equipped with for detect 850 DEG C of smoke temperature degree- 1200 DEG C of temperature-detecting device and with the injecting combustor joint control.
- 14. the after burner of the flue gas according to claim 1 for being used to handle Han bioxin, it is characterised in that institute Secondary fume outlet is stated to connect with flue gas waste heat recovery apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610878157.3A CN107917434A (en) | 2016-10-08 | 2016-10-08 | After burner for the flue gas for handling Han bioxin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610878157.3A CN107917434A (en) | 2016-10-08 | 2016-10-08 | After burner for the flue gas for handling Han bioxin |
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| Publication Number | Publication Date |
|---|---|
| CN107917434A true CN107917434A (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610878157.3A Pending CN107917434A (en) | 2016-10-08 | 2016-10-08 | After burner for the flue gas for handling Han bioxin |
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| Country | Link |
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| CN (1) | CN107917434A (en) |
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| CN111594843A (en) * | 2020-05-27 | 2020-08-28 | 嘉兴学院 | Tower type incineration system for paste waste |
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Application publication date: 20180417 |