CN106594741A - Combustion chamber - Google Patents
Combustion chamber Download PDFInfo
- Publication number
- CN106594741A CN106594741A CN201611028773.6A CN201611028773A CN106594741A CN 106594741 A CN106594741 A CN 106594741A CN 201611028773 A CN201611028773 A CN 201611028773A CN 106594741 A CN106594741 A CN 106594741A
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- China
- Prior art keywords
- combustor
- reaction
- burning
- flue gas
- section
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
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- 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
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
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- 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
- F23G5/444—Waste feed arrangements for solid waste
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- 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
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/00001—Exhaust gas recirculation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
Abstract
The embodiment of the invention provides a combustion chamber which is used for solving the technical problem that the incineration effect of an incineration furnace in the prior art is relatively poor. The combustion chamber is accommodated in a housing, and has a preset slenderness ratio; under the preset slenderness ratio of the combustion chamber, the combustion chamber comprises a mixing section and a plug flow section; the mixing section is equipped with a combustor for providing fuels, and is used for mixing to-be-reacted flue gas entering the combustion chamber with fuels provided by the combustor to combust to form reaction flue gas; the plug flow section is used for accommodating a continuous incineration reaction process of the reaction flue gas; the temperature in the incineration reaction process is greater than or equal to a preset incineration temperature; the preset slenderness ratio is a ratio of length of the combustion chamber to the inner diameter of the combustion chamber; the inner diameter of the combustion chamber is associated with the section area of the combustion chamber; time that the reaction flue gas flows through the plug flow section is greater than or equal to preset incineration time; and both the preset incineration temperature and the preset incineration time are set based on the incineration standards.
Description
Technical field
The present invention relates to field of environmental engineering, more particularly to a kind of combustor.
Background technology
As economic develops rapidly, the yield of China's hazardous waste is increasing, species is various, property is complicated, and
Generating source distributed number extensively, to ecological environment and human health serious harm is constituted.Burning is to process hazardous waste most to have
Effect and most thoroughly processing mode, and country is for the burning tailor of hazardous waste《Dangerous waste incineration Environmental capacity
Standard (GB18484-2001)》, indicate that to ensure effective burning of hazardous waste, it is stipulated that burn furnace temperature >=1100 DEG C, cigarette
The time of staying of gas answers >=2S, and ensures relevant art parameter, is the harmless burning disposal for safely and effectively realizing hazardous waste
Basis.Accordingly, as the carrier of burning process, the structure of incinerator is vital for the realization of burning process process has
Effect.
At present, using rotary kiln charging+large-scale combustion room (i.e. main chamber)+absorption dedusting+reach more than fairly perfect incinerator
The frame mode of mark discharge, in large-scale combustion room mode final burning is carried out, that is, burn reaction and mainly complete in large-scale combustion room.
However, mean residence time of the time of staying of incinerator smoke actually under preferable complete mixed state, i.e., in incinerator
The ratio of incineration flue gas volume flow rate in dischargeable capacity and stove, therefore, mean residence time can not represent truly stopping for all materials
The time is stayed, such as, into the material of system, some particles flow out rapidly, some particles then may be detained the long period, therefore survey
The time of staying of amount can accurately not represent the true time of staying of all burning materials, therefore into the burning material of combustor
The measured time of staying can not represent its actual response time, so as to directly influence the efficiency and effect of danger burning
Really, the not thorough of burning is caused.
The content of the invention
The embodiment of the present invention provides a kind of combustor, and the burning effect for solving incinerator of the prior art is poor
Technical problem.
A kind of combustor, including：
Housing；
The combustor is placed in the housing, and the combustor has default draw ratio, and in the combustor
Under default draw ratio, the combustor includes mixer section and laminar flow section, and the mixer section is provided with the combustion for providing fuel
Burner, for the fuel provided into the question response flue gas of the combustor and the burner to be carried out into mixing burning, forms
Reaction flue gas；The laminar flow section is used to house the lasting burning course of reaction of the reaction flue gas, the burning course of reaction
Temperature more than or equal to default incineration temperature；
Wherein, the default draw ratio is the ratio of the length with internal diameter of the combustor, the internal diameter and the combustor
Area of section it is related, the reaction flue gas flows through the time of the laminar flow section more than or equal to the default burning time, described pre-
If incineration temperature and the default burning time are based on burning standard setting.
Optionally, the span of the default draw ratio is [8,15].
Optionally, the reaction flue gas is [2m/s, 7m/s] in the flow velocity of the laminar flow section.
Optionally, the section of combustion chamber is shaped as regular circle shapes or irregularly shaped.
Optionally, the combustor also includes：
At least one disturbing flow device, in being fixedly installed on the laminar flow section of the combustor, for disturbing the reaction cigarette
Gas.
Optionally, the internal diameter is the diameter or equivalent diameter of the area of section of the combustor, and the length is described
Stroke between the two ends of combustor.
Optionally, the combustor is made up of the flame retardant coating using refractory material.
Optionally, the combustor also includes protective layer, between the housing and the flame retardant coating, for burning
The temperature of the combustor is maintained in course of reaction.
Optionally, the combustor also includes gripper shoe, for supporting the laminar flow section.
Optionally, the combustor also includes exhaust port, for by through the reaction smoke reaction of the laminar flow section
Gas afterwards is discharged.
Combustor provided in an embodiment of the present invention is located in housing, and combustor has default draw ratio, the default draw ratio
The ratio of length and internal diameter for combustor, internal diameter is related to the area of section of combustor, in the anti-of the default major diameter lower combustion chamber
Answer device model similar to plug flow mode, combustor can include mixer section and laminar flow section, and mixer section is provided with for providing
The burner of fuel, for the fuel provided into the question response flue gas of combustor and burner to be carried out into mixing burning, forms
The reaction flue gas for persistently burning, laminar flow section is used for the lasting burning course of reaction of accommodating reaction flue gas, burns course of reaction
Temperature is reacted flue gas and flows through the time of laminar flow section more than or equal to the default burning time more than or equal to default incineration temperature, is preset
Incineration temperature and default burning time are based on burning standard setting, therefore can make to burn by adjusting the draw ratio of combustor
It is plug flow mode to burn the applicable reactor model of course of reaction, and so as to be effectively ensured the anti-of reaction mass in course of reaction is burned
Between seasonable (i.e. the time of staying), promote reaction to carry out more thorough, improve the burn-off rate to danger, while, it is ensured that it is anti-
Between seasonable, can fundamentally reduce because burning the treating tail gas pressure for not exclusively being brought.
Description of the drawings
Fig. 1 is the structural representation of combustor in the embodiment of the present invention；
Fig. 2A-Fig. 2 B are the schematic cross-section of the laminar flow section of combustor in the embodiment of the present invention；
Fig. 3 A- Fig. 3 B are the combustor schematic diagram that disturbing flow device is provided with the embodiment of the present invention；
Fig. 4 is the structural representation of CIU in the embodiment of the present invention.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the embodiment of the present invention, combustor could be for the incinerator for being burnt to incinerated matter and being reacted.Generally should
For in CIU, CIU can be used for treating burning material and be burned and to the residue and flue gas after burning
Etc. being processed, to realize that cleaning is discharged, the pollution to environment is reduced.
Burning is the chemical process of a complexity, is related to chemistry, heat transfer, mass transfer, hydrodynamics, chemical thermodynamicses, chemistry
Many processes such as kinetics.Incinerator can be divided into three major types, i.e. solid waste incinerator, waste gas combustion furnace in terms of material is processed, give up
Liquid incinerator, and circulating fluid bed type incinerator, mechanical grate furnace incinerator, rotary kiln type can be divided into from the type of furnace and burned
The types such as stove, incinerator for thermal decomposition, direct-combustion furnace a, CIU can include one or more incinerators.
Optionally, the thing that material can be that junk or dangerous materials thing etc. need to carry out burning destruction is burned in incinerator
Material.As a rule, burning the form of material can include solid-state, liquid and powder, or even can also include other forms such as
Gaseous state etc., can be depending on practical situation in actual mechanical process, and the embodiment of the present invention is not specifically limited to this.
In addition, the terms "and/or", a kind of only incidence relation of description affiliated partner, expression there may be
Three kinds of relations, for example, A and/or B can be represented：Individualism A, while there is A and B, individualism B these three situations.Separately
Outward, character "/" herein, typicallys represent forward-backward correlation pair as if a kind of relation of "or".
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the embodiment of the present invention provides a kind of combustor, the combustor is included and in housing, combustor
It is the length of combustor and the ratio of internal diameter with the default draw ratio of default draw ratio, the wherein area of section phase of internal diameter and combustor
Close, under the default draw ratio, it is plug flow mode that can cause to burn the applicable reactor model of course of reaction in combustor,
In the embodiment of the present invention, the combustion chamber with the default draw ratio can include mixer section and laminar flow section.
In actual applications, the housing of combustor can have protective effect, and it can be made of using exotic material.
Optionally, as shown in figure 1, in a combustion chamber in addition to the mixing section and laminar flow section that divide, can also include rising
Section and interface section.
Specifically, the mixer section in combustor can be provided with the burner for providing fuel, and mixer section can be used
In the fuel that question response flue gas and burner are provided is carried out into mixed combustion, the reaction flue gas for persistently burning is formed.
In actual applications, the heat that burning is produced can promote the temperature rising for burning indoor, with heated particle thing etc.
Reaction temperature is made up to, and made particulate matter sustained response (burning), consumed until disappearing.
In combustor, the temperature of course of reaction is burned more than or equal to default incineration temperature, and reaction flue gas flows through laminar flow
The time of section is more than or equal to the default burning time, wherein, the default incineration temperature and default burning time can be based on burning
Standard setting.
For example, if the burning material that combustor is burned is hazardous waste, according to the burning system currently for hazardous waste
Fixed《Dangerous waste incineration Environmental capacity standard》Specified in order to ensure effective burning of hazardous waste, it is stipulated that burn furnace temperature
>=1100 DEG C of degree, the time of staying of flue gas answers >=2S, therefore, the default incineration temperature in the embodiment of the present invention can be 1100
DEG C, the default burning time can be 2s, or can also be other numerical value under the premise of burning standard is met, and for example, preset
1200 DEG C of incineration temperature, default burning time are 3s, etc., and the embodiment of the present invention is not specifically limited to this, and its value can expire
The corresponding standard of foot.
The question response flue gas entered in combustor in the embodiment of the present invention can be the flue gas comprising small particle, and it can be with
It is to carry out primary combustion, and being allowed after screening to granularity to burning material by other combustor (such as large-scale combustion room)
Into flue gas.
In actual applications, due to the burning and the screening to particulate matter by large-scale combustion room to burning material, Ke Yiyun
Perhaps particle diameter is discharged less than or equal to the particulate matter of predetermined size with flue gas, therefore the granule in the flue gas discharged can be little to certain journey
Degree, the presetting granularity could be for according to the property of material to be burned to set by system can avoid large particulate matter with
The threshold value that flue gas is discharged.
In general, the granularity of air floating dust is less than 10 μm, and the granularity of depositing dust is more than 10 μm, the thing of different grain size particulate matter
Rationality matter (such as optical, electromagnetic) and chemical composition are very different, therefore, with its granularity the characteristics of particulate matter
It is different and different.Wherein, granularity is used to indicate the size of particulate matter that the granularity of spheroidal particle to represent referred to as " grain with his diameter
Footpath ", aspherical particle does not have diameter to say, just using its granularity of the conceptual description of " equivalent grain size ", i.e. particle diameter is to compare granularity
Specifically more accurate physical concept.
Pollutant due to entering air in city, in being largely focused on small size particle thing, some venomous injurants
Matter, such as cadmium, lead, nickel and benzopyrene carcinogen are concentrated in the little particle that granularity is 0.1～2 μm, then, in order to such
Grain thing is further processed, therefore corresponding predetermined size can be 2um, 4um etc., and the embodiment of the present invention is not made to have to this
Body is limited.
The laminar flow section that combustor has can be used for accommodating question response flue gas and form reaction cigarette with fuel mixed combustion
Gas, the temperature for reacting flue gas can be more than or equal to default incineration temperature (such as 1100 DEG C), to ensure to burn effectively entering for reaction
OK.Question response flue gas can be that the flue gas produced by burning incinerated matter is carried out into the gas after particle filter, therefore enter into and have
The particulate matter of the question response flue gas for being burned in the combustor of horizontal sliding flow structure and being reacted is very likely with the little of harm
Particulate matter.
In the embodiment of the present invention, the laminar flow section that combustor has may refer to the combustor from a structural point to be had in advance
If draw ratio, because combustor is hollow equipment, it has certain length and internal diameter, and the internal diameter is according to combustor
Cross-sectional area calculate gained, it can be the diameter or equivalent diameter of area of section, and the length of combustor is combustor
Two ends between relative distance, or the length may also mean that the reaction stroke that flows through in a combustion chamber of flue gas, length with it is interior
Ratio between footpath is draw ratio.
As shown in Figure 2 A, it is the schematic cross-section of laminar flow section in combustor, the laminar flow section of combustor herein
It is long flow process horizontal sliding section.As seen from the figure, shell, heat-insulation layer, the flame retardant coating being followed successively by from outside to inside in the structure of combustor, in figure
By combustor be shaped as it is irregular circle as a example by, can be configured according to the actual requirements in actual applications.
In actual applications, the material of flame retardant coating can be that, using high temperature resistant, the material of fire resisting, flame retardant coating forms combustor
Work surface, provides reliable burning environment to burn reaction.Protective layer may be located between housing and flame retardant coating, for burning
Burn the hot environment that combustor is maintained in course of reaction.
In the embodiment of the present invention, section of combustion chamber is shaped as regular circle shapes or irregularly shaped, in designed combustion room
During draw ratio, the internal diameter of combustor can be calculated according to the cross-sectional area of combustor, if combustor is shaped as regular circle
Shape, then it is believed that the internal diameter of combustor is the diameter of section circle, or, if being shaped as combustor is irregularly shaped,
Can using the equivalent diameter of section circle as combustor internal diameter.
For example, if the shape of cross section in combustor is dome-shaped as shown in Figure 2 A, the corresponding ginseng of the dome-shaped
As shown in Figure 2 B, wherein letter a represents the profile height of combustor, alphabetical b represents the width of combustor to number, and R is dome-shaped (fan
Shape) radius, n be the corresponding angle of dome-shaped.So, the process for calculating draw ratio can be as follows：
1) area of section of calculating laminar flow section is：
A=a*b+ π R2n/180-R2Sin (n)/2 formula 1
2) equivalent diameter (D) is calculated：
3) draw ratio (H) is calculated：
H=L:D formula 3
Wherein, the L in formula 3 represents the length of combustor.
As a rule, when the draw ratio of combustor reaches certain ratio, thus it is possible to vary burn material indoor anti-in burning
Corresponding device model is answered, in draw ratio certain numerical value is exceeded, its corresponding reactor computation model is similar to laminar flow
Model.And plug flow model typically refers to reaction mass in the flowing direction completely without back-mixing, and perpendicular to flow direction
Plane on reach the model of maximum mixing.
In the embodiment of the present invention, the span of the draw ratio of default combustor can be [8,15], such as L:The value of D
Can be 9,11,14,15 or other ratios.Now, the structure of large-scale combustion room is equivalent to piston flow reactor model, i.e., in constant volume
Under state, the mean residence time of reaction mass and response time are all identicals, without difference.
In due to the reaction process of horizontal sliding section, with reaction constantly carry out until reaction complete and body of heater itself dissipate
Heat, horizontal sliding section certainly exists corresponding thermograde (complete mixing flow mode temperature relative constancy), and draw ratio is not the bigger the better, together
When, also it is unfavorable for the economy of control and the operation of manufacturing cost.Therefore, in the combustion rate for considering cost and reaction mass etc.
In the case of, the span of preferred default draw ratio can be [12,15].
Additionally, reacting flue gas in a combustion chamber at a high temperature of more than or equal to 1100 DEG C, with the promotion of air-flow, combustor
The flow velocity of middle burner hearth flue gas can reach 2m/s and more than, it might even be possible to reach 7m/s.In the embodiment of the present invention, if having default
In combustor in draw ratio, reaction flue gas can reach [3m/s, 5m/s] in the flow velocity of laminar flow section, and overall flow velocity is more put down
Surely, the stay time of reaction mass laminar flow section in a combustion chamber is ensure that, i.e., is burnt in the dischargeable capacity in incinerator and stove
The ratio of flue gas volume flow velocity is burnt, the duration can meet country to danger more than or equal to standard time, i.e., 2 second are burned
Burning standard specifies.
Therefore, in the embodiment of the present invention, because contained particulate matters are subjected to before into combustor in question response flue gas
Control (including granular size, proportion etc.), when particulate matter is burnable granule, will be in the indoor sustained response of burning, controllable
Effecting reaction under the conditions of, i.e. reaction temperature >=1100 DEG C in combustor, reaction time >=2s can sequentially advance reaction
Consume until disappearing；And for non-flammable particulate matter and the burnable granule not reacted completely yet are by with the retention of the form of flue dust
In flowing through in the flue gas after the horizontal sliding flow structure.
Also, due to the reactive mode of order propulsion, it is effectively guaranteed reaction equilibrium, reliability and the reaction for burning material
The effectiveness of time, so as to be effectively guaranteed the effect of burning, reduces the probability of the generation of dioxin harmful substance.
In prior art, CIU is usually to develop on the basis of the industrial furnace based on heat energy utilization, and
And the still more large-scale combustion cell structure for laying particular emphasis on making full use of for the energy, adopting many combustor mostly in structure, that is, burn
The main process of burning is completed in large-scale combustion room, and the time of staying of incinerator smoke is actually flat under preferable complete mixed state
The equal time of staying.
In the embodiment of the present invention, it is configured by the draw ratio to combustor so that combustor is anti-similar to laminar flow
Answer device model.Accordingly, with respect in prior art using large-scale combustion room as the complete mixing flow pattern of main chamber, it averagely stops
The time is stayed to represent the true time of staying of all materials, into the material of system, some particles flow out rapidly, some particles
Then may be detained the long period；Secondly, its time of staying of reactor that complete mixing flow mode of the prior art is designed is more with little
When for unit measuring, and the time of staying burned is then measuring, to illustrate that what is calculated by this way stops in units of being the second
The time is stayed to certainly exist very big error.And in the embodiment of the present invention, under the horizontal sliding stream mode that combustor is adopted, Neng Goubao
The time of staying of card response time and material maintains concordance, its time of staying be it is effective, it is also more reliable, so as to solve
Large-scale combustion room is adopted in prior art and determines that the error of the time of staying of reaction mass is larger with preferable complete mixing flow state
Technical problem.
Optionally, the laminar flow section of combustor is also provided with least one disturbing flow device, for increasing to reacting cigarette
The disturbance of gas, improves the turbulent extent of reaction flue gas, improves the effective collision for burning reaction, so as to lift the effect for burning reaction
Really.
As shown in Figure 3A, it is the top view of the combustor for being provided with disturbing flow device, and this sentences laminar flow section and arranges flow-disturbing dress
As a example by putting including multiple spoilers, and multiple spoilers with the formal distribution organized in laminar flow section.For example in figure dotted line frame can be with
One be expressed as in disturbing flow device, it can be made up of 3 spoilers, and 3 spoilers can be in angular distribution, and put down two-by-two
OK, when particulate matter is with airflow passes horizontal sliding section, particulate matter can occur multiple impacts between spoiler, help lend some impetus to reaction
Collision probability in flue gas between particulate matter, lifts response speed, improves reaction process.
Certainly, between each disturbing flow device can have corresponding spacing, the spacing can be according in course of reaction not
Arrange with the stage of reaction, the embodiment of the present invention is not specifically limited to this.As shown in Figure 3 B, it is flow-disturbing in the second combustor
The side view of device.
Optionally, combustor can also include gripper shoe, for supporting combustor.
Additionally, combustor also includes that exhaust port can be included, for by after the reaction smoke reaction of laminar flow section
Gas discharged, i.e. the ascent stage and interface section in Fig. 1, by laminar flow section reaction flue gas can be in the work of absorbing quantity
Lower discharge is used, so that follow up device is processed the tail gas discharged.
Combustor provided in an embodiment of the present invention has default draw ratio, in the reactor mould of the default major diameter lower combustion chamber
Type can include mixer section and laminar flow section similar to plug flow mode, combustor, and mixer section is provided with for providing fuel
Burner, for the fuel provided into the question response flue gas of combustor and burner to be carried out into mixing burning, forms reaction cigarette
Gas, laminar flow section is used for the lasting burning course of reaction of accommodating reaction flue gas, burns the temperature of course of reaction more than or equal to default
Incineration temperature (such as 1100 DEG C), reacts flue gas and flows through the time of laminar flow section more than or equal to the default burning time (such as 2s), therefore leads to
It is plug flow mode to cross the draw ratio of adjustment combustor and can make the applicable reactor model of burning course of reaction, so as to effectively protect
Card burns the response time (i.e. the time of staying) of reaction mass in course of reaction, promotes reaction to carry out more thorough, and it is right to improve
The burning ratio of hazardous waste, while, it is ensured that in the response time, can fundamentally reduce because burning the tail gas for not exclusively being brought
Administer pressure.
In actual applications, the combustor can be applied in CIU as main chamber, as shown in figure 4, it is
The CIU that combustor (i.e. the second combustor in figure) with laminar flow segment structure is applied.
The CIU is burned and the residue after burning is processed for treating burning material, and it can include
Pay-off, the first combustor, the second combustor, dust arrester, spray quenching apparatus, washing absorption foam removal demister and row
Cigarette device etc..
Wherein, pay-off is located at before the first combustor in CIU, and pay-off can be based on CIU
Automated condtrol, material to be burned is sent into into the first combustor carries out primary combustion, and the material to be burned can be dangerous giving up
Thing etc. burns material.
First combustor can treat burning material as the large-scale combustion room in CIU to carry out burning disposal.In reality
In the application of border, the first combustor can be fluidized bed furnace, therefore can treat burning material by the first combustor and seethed with excitement, just
Particulate matter in the processing procedures, and the flue gas produced to primary combustion such as step burning, gasification carries out the screening of granule.
Therefore, in actual applications, by the way that large-scale combustion room (i.e. the first combustor) is placed on horizontal sliding flow structure
Before combustor, it can accordingly be screened in the granularity for treating incinerated matter and carrying out the particulate matter produced by primary combustion, i.e.,
In the first combustor hazardous waste it is low enter, be higher by, and under the conditions of certain absorbing quantity, the material of different specific weight only has little to phase
Corresponding granularity size, could enter into from large-scale combustion cell structure and (reaction) is burned in horizontal sliding flow structure, so as to effective
Guarantee into the particulate matter size that includes and relative equilibrium in the flue gas of the second combustor particulate matter composition.
Certainly, in actual applications, CIU can also adopt the supporting converter of Large Copacity air-introduced machine to meet system
Negative pressure and different material burn the requirement to air capacity, there is provided necessary burning environment, improve and burn effect.
Optionally, the spray quenching apparatus in CIU can be used for carrying out the secondary flue gas of the second combustor output
Cooling treatment, corresponding cooling extent and time used can be based on burning standard settings.For example, according to《Dangerous waste incineration
Environmental capacity standard》For flue gas chilling control condition, working standard is：The time that 200 DEG C are dropped to from 550 DEG C is less than 1s, then
CIU can be configured and control according to the standard to the related work part for spraying quenching apparatus.
In actual applications, spraying quenching apparatus can specifically include heat exchange interface and chilling tower；
Wherein, the interface that exchanges heat is used to be connected chilling tower with the second combustor, and in heat exchange interface heat exchanging fluid is equipped with, should
Heat exchanging fluid can be used for the protection adapter during heat exchange interface transmits the high temperature secondary flue gas that the second combustor is discharged, should
Heat exchanging fluid can be hot water or other liquid.
Chilling tower is connected with heat exchange interface, and the spray-absorption liquid that it includes can absorb the heat of secondary flue gas institute band, and
Secondary flue gas are cooled down.In actual applications, spray the chilling tower in quenching apparatus and can also absorb in secondary flue gas and contain
Some part harmful gass.
In actual applications, when processing tail gas, can also be using dedustings such as venturi wet dust removal, semidry methods
Mode, selects more preferable, more inexpensive while can meet requirement to tail gas absorption and dedusting simultaneously qualified discharge, reduction to air and
The pollution of environment.
Optionally, washing absorption foam removal demister may be located between dust arrester and smoke extractor, for secondary
Flue gas carries out foam removal, demisting process, reduces the water content excluded in tail gas.
Optionally, the smoke extractor in CIU can include air-introduced machine and chimney, wherein, air-introduced machine is used for dedusting
Gas after equipment process is guided chimney into and is discharged, and smoke extractor can be based on burning standard setting system operation negative pressure.
In the embodiment of the present invention, by the structure for improving incinerator, hazardous waste is carried out just first in large-scale combustion room
Step is burned, granularity screening, thoroughly realizes innoxious burning subsequently into the long flow process section of laminar flow, it is ensured that dangerous waste incineration
Effective time of staying, improve reaction condition, greatly improve firing efficiency, the generation of flue dust is reduced, in some situations
Under (such as fluid, the burning of semifluid organic hazardous waste) dependence to bag-type dust can be broken away from, so as to significantly
Reduction equipment manufacturing cost and operating cost.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of combustor, it is characterised in that include：
Housing；
The combustor is placed in the housing, and the combustor has default draw ratio, and in the default of the combustor
Under draw ratio, the combustor includes mixer section and laminar flow section, and the mixer section is provided with the burner for providing fuel,
For the fuel provided into the question response flue gas of the combustor and the burner to be carried out into mixing burning, reaction cigarette is formed
Gas；The laminar flow section is used to house the lasting burning course of reaction of the reaction flue gas, the temperature of the burning course of reaction
More than or equal to default incineration temperature；
Wherein, the default draw ratio is the ratio of the length with internal diameter of the combustor, and the internal diameter cuts with the combustor
Face area is related, and the reaction flue gas flows through the time of the laminar flow section more than or equal to the default burning time, and described presetting is burnt
Burn temperature and the default burning time is based on burning standard setting.
2. combustor as claimed in claim 1, it is characterised in that the span of the default draw ratio is [8,15].
3. combustor as claimed in claim 1, it is characterised in that the reaction flue gas is in the flow velocity of the laminar flow section
[2m/s, 7m/s].
4. combustor as claimed in claim 1, it is characterised in that the combustor also includes：
At least one disturbing flow device, in being fixedly installed on the laminar flow section of the combustor, for disturbing the reaction flue gas.
5. combustor as claimed in claim 1, it is characterised in that the cross sectional shape of the combustor is regular circle shapes or does not advise
Then shape.
6. the combustor as described in the arbitrary claim of claim 1-5, it is characterised in that the internal diameter is the section of the combustor
The diameter or equivalent diameter of area, the length is the stroke between the two ends of the combustor.
7. combustor as claimed in claim 1, it is characterised in that the combustor is by the flame retardant coating structure using refractory material
Into.
8. combustor as claimed in claim 1, it is characterised in that the combustor also includes protective layer, positioned at the housing
And the flame retardant coating between, for maintaining the temperature of the combustor in course of reaction is burned.
9. combustor as claimed in claim 1, it is characterised in that the combustor also includes gripper shoe, described for supporting
Laminar flow section.
10. combustor as claimed in claim 1, it is characterised in that the combustor also includes exhaust port, for passing through
Gas after the reaction smoke reaction of the laminar flow section is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028773.6A CN106594741A (en) | 2016-11-18 | 2016-11-18 | Combustion chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028773.6A CN106594741A (en) | 2016-11-18 | 2016-11-18 | Combustion chamber |
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| Publication Number | Publication Date |
|---|---|
| CN106594741A true CN106594741A (en) | 2017-04-26 |
Family
ID=58592422
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611028773.6A Pending CN106594741A (en) | 2016-11-18 | 2016-11-18 | Combustion chamber |
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| Country | Link |
|---|---|
| CN (1) | CN106594741A (en) |
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