CN105333440B - A kind of refuse pyrolysis gasification oxygen-enriched incinerator of smoke gas circulating type - Google Patents
A kind of refuse pyrolysis gasification oxygen-enriched incinerator of smoke gas circulating type Download PDFInfo
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- CN105333440B CN105333440B CN201510900753.2A CN201510900753A CN105333440B CN 105333440 B CN105333440 B CN 105333440B CN 201510900753 A CN201510900753 A CN 201510900753A CN 105333440 B CN105333440 B CN 105333440B
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- flue gas
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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
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
- F23G5/0276—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using direct heating
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/10—Combustion in two or more stages
- F23G2202/106—Combustion in two or more stages with recirculation of unburned solid or gaseous matter into combustion chamber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a kind of oxygen-enriched incinerator of the refuse pyrolysis of smoke gas circulating type gasification, including burn furnace main body, flue gas recirculation supply air system, filtrating equipment of flue gas, oxygen-enriched blasting system, smoke gas afterheat heat exchanger, smoke eliminator；Wherein burning furnace main body includes a combustion room and dual firing chamber, is respectively used to refuse pyrolysis gasification and the burning of combustible；The flue gas of circulation is injected in incinerator by flue gas recirculation supply air system, improves turbulivity in stove, strengthens waste incineration, reduces the generation of imperfect combustion pollutant such as bioxin presoma, reduces pollutant emission.Oxygen-enriched blasting system can improve incineration temperature, reduce auxiliary fuel consumption, and filtrating equipment of flue gas, smoke eliminator can further reduce pollutant emission, and smoke gas afterheat heat exchanger can be with Mist heat recovering.The present invention can effectively solve refuse thermal value is low, water content is high, in air oxygen content it is low caused by incineration temperature is low, efficiency of combustion is poor, auxiliary fuel consumption is more, the problems such as pollutant emission is not up to standard.
Description
Technical field
The invention belongs to incinerator field, gasifies more particularly, to a kind of refuse pyrolysis using flue gas recirculation mode
Oxygen-enriched incinerator.
Background technology
With expanding economy, people's living standard is greatly improved, along with generating substantial amounts of rubbish,
Rubbish is caused seriously to pollute to air, soil, water source etc., and significant damage is caused to our living environment, is solved rubbish and is asked
Inscribe very urgent.Burning disposal is preferable rubbish volume reduction generally acknowledged at present, the processing means of minimizing, except caused lime-ash
In addition, combustible is completely burned off, it is considered that being capable of volume reduction 85-90%.At present in developed country, burning disposal is main flow
Rubbish terminal processing techniques.In the last few years, waste incineration industry in China's also obtain quick development, but waste incineration it is horizontal with
There is larger gap in developed country, and the small compact burning facility that advanced burning facility especially handles more scattered rubbish lacks
Mouth is huge.With newest《Consumer waste incineration contamination control standard》GB18485-2014 appearance, pollutant emission limit are big
Width declines, and requirements at the higher level are proposed to burning level, therefore is badly in need of developing new and effective burning facility.
Waste incineration effect depends primarily on " 3T " principle, and " 3T " refers to temperature, turbulivity, residence time.Burn temperature
Turbulivity is bigger in the higher, stove of degree, flue gas residing time in furnace is longer, burns that effect is better, and pollutant such as bioxin etc. decomposes
It is more complete.Provided according to Chinese Ministry of Environmental Protection, house refuse dual firing chamber of China incineration temperature need to reach more than 850 DEG C, and danger wastes need
Reach more than 1100 DEG C, the flue gas dual firing chamber residence time need to reach more than 2S.Because China's component of refuse is complicated, water content is higher
Following problem and calorific value is relatively low, in burning process be present：
1. it is difficult to combustion stability and reaches defined incineration temperature.In order to reach requirement, it is necessary to a large amount of auxiliary of input
Fuel, add the pollutant emissions such as bioxin and operating cost.
2. being the regulation for reaching residence time 2S, inner flue gas of the stove stroke is longer or flue gas flow rate is too low, easily causes in stove
Turbulivity deficiency, influence to burn effect, add the discharge of the pollutants such as bioxin.
Because anoxic, above mentioned problem can be more serious when 3. highlands is run.To ensure to burn, when highlands is burned
It need to blast compared to the more air in plains region so that incineration temperature substantially reduces, and flue gas flow rate increase, reduces stove
The discharge of the pollutants such as interior residence time , bioxin substantially rises.
The content of the invention
For problem above, the invention provides a kind of oxygen-enriched burning of refuse pyrolysis gasification using flue gas recirculation mode
Stove, the type of furnace gasify in refuse pyrolysis on the basis of oxygen-enriched incinerator, add flue gas recirculation pattern, can improve burn effect and
Incinerator efficiency of utilization, the generation of pollutant such as bioxin is reduced, and equipment volume is smaller, can be fabricated to miniature movable type
Equipment, it is convenient to handle more dispersed rubbish.It is rich that the present invention proposes that a kind of refuse pyrolysis using flue gas recirculation mode gasifies
Oxygen incinerator, including burn furnace main body, flue gas recirculation supply air system：
The burning furnace main body includes a combustion room 2 and dual firing chamber 3, and a combustion room 2 is gasified for refuse pyrolysis, caused flammable
Gas delivers to dual firing chamber 3；One combustion room 2 be equipped with least one first burner 1, for an air-supply for firing room 2 and auxiliary fuel
Spray into, realize the pyrolytic gasification of rubbish in a combustion room 2；Dual firing chamber 3 is used to burn fuel gas caused by a combustion room 2,
It is equipped with the second burner 4, for the air-supply of dual firing chamber 3 and the penetrating of auxiliary fuel；
The flue gas recirculation supply air system includes heat exchanger 13, flue gas booster fan 103 and flue gas loopback pipeline 81；Two combustions
The exhanst gas outlet of room 3 is connected by flue gas pipeline bus 8 with heat exchanger 13, and heat exchanger 13 is connected to burning through flue gas loopback pipeline 81
Stove；The flue gas booster fan 103 is arranged on flue gas loopback pipeline 81；
In work, flue gas caused by dual firing chamber 3 is after flue gas pipeline bus 8 is sent to the heat exchange of heat exchanger 13, all the way through flue gas
Outside the outer discharge system of comb line 82, another way is pressurizeed through flue gas booster fan 103, and dual firing chamber is recycled to through flue gas loopback pipeline 81
3。
Further, the flue gas booster fan 103 of the oxygen-enriched incinerator of described refuse pyrolysis gasification arrives the flue gas of dual firing chamber 3
Loopback pipeline divides two-way to be connected to dual firing chamber 3, is connected to the second of dual firing chamber 3 through the first flue gas loopback pipeline branch line 811 all the way
Burner 4, it is connected to dual firing chamber's circulating flue gas entrance 19 through the second flue gas loopback pipeline branch line 812 all the way；Flue gas loopback
Effect is to improve turbulivity in dual firing chamber, and effect is burned in enhancing so that pollutant such as bioxin presoma generation is less and decomposes
Completely, pollutant emission is reduced.
Further, the oxygen-enriched incinerator of the refuse pyrolysis gasification, including filtrating equipment of flue gas 14, filtrating equipment of flue gas 14
Exported installed in heat exchanger 13 between the entrance of flue gas loopback pipeline 81, for particle collection in flue gas to be got off, reduction pair
The abrasion of flue gas booster fan 103, and reduce heavy metals emission.
Further, the oxygen-enriched incinerator of described refuse pyrolysis gasification, including oxygen-enriched blasting system, the oxygen-enriched blasting system
System includes oxygen-enriched air generating device 7 and oxygen booster fan 101, and both are switched to heat exchanger 13 after being connected；The oxygen of heat exchanger 13
The gas port of export is connected with hot oxygen main pipe line 9B, hot oxygen main pipe line 9B pass through the second hot oxygen pipeline branch line 92 and dual firing chamber 3 second
Burner 4 connects；During work, oxygen-enriched air caused by oxygen-enriched air generating device 7, pressurize and change through oxygen booster fan 101
Hot device 13 preheats, and through hot oxygen main pipe line 9B, by the second hot oxygen pipeline branch line 92, delivers to the second burner 4 of dual firing chamber 3.
On the basis of this, it can also be connected by the first hot oxygen pipeline branch line 91 with the first burner 1 of a combustion room 2；Oxygen-enriched blasting system, lead to
Cross and oxygen-enriched air is delivered into a combustion room 2, improve the temperature and oxygen concentration of a combustion room 2 air-supply, stablize the heat of the rubbish of a combustion room 2
Gasification is solved, and caused fuel gas calorific value is higher, is advantageous to the burning of dual firing chamber 3, and oxygen-enriched blasting system also improves
The temperature and oxygen concentration of the gas of dual firing chamber 3 are sent into, improves the ignition temperature of dual firing chamber 3, reduces pollutant such as bioxin forerunner
The generation of body, oxygen-enriched blasting system reduce auxiliary fuel consumption, improve the efficiency of utilization of incinerator.
Further, during described refuse pyrolysis gasifies oxygen-enriched incinerator, the outer comb line 82 of described flue gas is flue gas mistake
Filter device 14 exports the pipeline for being connected to system smoke evacuation outlet, including smoke eliminator 16 and air-introduced machine 102；Discharged gas fume passes through
It is outer after smoke eliminator 16 further removes the pollutant in flue gas to arrange after smoke gas afterheat heat exchanger 15 cools；It is described to draw
Blower fan 102 is arranged on the smoke evacuation outlet of the outer comb line 82 of flue gas.
Further, in the outer comb line 82 of the flue gas of the oxygen-enriched incinerator of described refuse pyrolysis gasification, in addition to more than flue gas
Heat exchanger 15 and/or cooling medium pipeline 17；The smoke gas afterheat heat exchanger 15 is used for the flue gas cool-down of outer row, so as to cigarette
The processing of gas subsequent purification；The cooling medium pipeline 17 is used to reclaim discharged gas fume waste heat, further improves system energy efficiency.
Further, the running temperature of the filtrating equipment of flue gas 14 in the oxygen-enriched incinerator of described refuse pyrolysis gasification is excellent
Elect 500-400 DEG C as, will can avoid what flying dust occurred with component in flue gas under the granule capturings such as flying dust in this temperature range
200-400 DEG C of de novo formation heterogeneous catalytic reaction (de novo heterogeneously catalysed reactions),
Reduce catalyzing and synthesizing for flue Zhong bioxin.
Further, the first hot heat of oxygen pipeline branch line 91, second in the oxygen-enriched incinerator of described refuse pyrolysis gasification
Be equipped with oxygen pipeline branch line 92, the first flue gas loopback pipeline branch line 811 and the second flue gas loopback pipeline branch line 812 gauge table and
Regulating valve.
Further, the oxygen-enriched air preheating in the oxygen-enriched incinerator of described refuse pyrolysis gasification is by heat exchanger 15
Realize, the heat exchanger 13 adds cooling medium pipeline 17, for Mist heat recovering.
Further, the incinerator in the oxygen-enriched incinerator of described refuse pyrolysis gasification also includes air supply pipeline,
The air supply pipeline includes supercharging air blower fan 104, heat exchanger 13 and air line 18, and supercharging air blower fan 104 is used for
After air pressurized feeding heat exchanger 13 is exchanged heat, a combustion room 2 is sent into through air line 18.One combustion room 2 replaces oxygen-enriched sky with air
Gas, operating cost can be reduced.
Further, the outer comb line 82 of the flue gas is that filtrating equipment of flue gas 14 exports the pipe for being connected to system smoke evacuation outlet
Line, including smoke eliminator 16 and air-introduced machine 102；Discharged gas fume is after the cooling of smoke gas afterheat heat exchanger 15, through gas cleaning
Device 16 further removes outer row after the pollutant in flue gas；The air-introduced machine 102 is arranged on the smoke evacuation of the outer comb line 82 of flue gas
Outlet；Smoke eliminator 16 can neutralize to the acid ingredient in flue gas so that HCl, SO in flue gas2Deng acidic materials
Removed.
Further, in the oxygen-enriched incinerator of described refuse pyrolysis gasification, the pattern bag of the oxygen-enriched air generating device 7
Include air-tank style or the oxygenerator using membrane separation process, pressure swing adsorption method or Deep Cooling Method.
Further, during described refuse pyrolysis gasifies oxygen-enriched incinerator, the oxygen-enriched blasting system, which can be cancelled, delivers to one
The tap line 91 of the oxygen-enriched air of 2 first burner of room 1 is fired, can be fired from supercharging air blower fan 104 by air line 18 to one
First burner 1 of room 2 is sent into the air preheated by heat exchanger 13, saves operating cost.
Further, during described refuse pyrolysis gasifies oxygen-enriched incinerator, oxygen-enriched air also can be through smoke gas afterheat heat exchanger
15 preheatings；Also provided with cooling medium pipeline on heat exchanger 13, for Mist heat recovering.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
1) sensible heat in flue gas has been reclaimed, incinerator efficiency of utilization improves, and reduces the consumption of auxiliary fuel.
2) wind pushing temperature of incinerator improves, and stabilizes pyrolyzing, gasifying and incinerating process, improving can caused by pyrolytic gasification
The calorific value of combustion gas, improve the temperature of burning.
3) flue gas recirculation improves turbulivity in stove, improves burning effect, reduces the generation of pollutant such as bioxin.
4) granule capturings such as flying dust are got off using filtrating equipment of flue gas before flue gas recirculation, reduces the abrasion of blower fan, dropped
The low discharge of particulate matter and heavy metal, and the de novo formation out-phase for avoiding 200-400 DEG C that flying dust occurs with flue gas is urged
Change reaction, reduce catalyzing and synthesizing for bioxin in flue so that the growing amount of bioxin is decreased obviously.
5) high ash, high humidity, waste of low heating value and highlands junk-free are solved, efficiently burns problem.
In a word, the oxygen-enriched incinerator of smoke gas circulating type refuse pyrolysis gasification, which can be realized, preferably burns effect and with energy-conservation
Meaning, tightened up discharge standard can be reached, there is very big technical advantage.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Each critical piece title in figure：The burners of 1- first, 2- mono- fire room, 3- dual firing chamber, the burners of 4- second, 51-
Regulating valve, 61- gauge tables, 7- oxygen-enriched air generating devices, 101- oxygen booster fan, 11- diffusion valves, 12- switch valves, 13-
Heat exchanger, 14- filtrating equipment of flue gas, 103- flue gases booster fan, 15- smoke gas afterheat heat exchangers, 16- smoke eliminators,
102- air-introduced machines, 104- supercharging airs blower fan, 19- circulating flue gas entrances；
Pipeline title：The hot oxygen pipeline bus of 9- oxygen pipelines bus, 9B-, the hot oxygen pipeline branch lines of 91- first, the heat of 92- second
Oxygen pipeline branch line, 8- flue gas pipelines bus, 81- flue gas loopbacks pipeline, 811- the first flue gas loopback pipelines branch line, the cigarettes of 812- second
The outer comb line of gas loopback pipeline branch line, 82- flue gases, 18- air line 17- cooling medium pipelines.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Conflict can is not formed each other to be mutually combined.
Reference picture 1, a kind of oxygen-enriched incinerator of refuse pyrolysis gasification using flue gas recirculation mode, it is characterised in that including
Burn furnace main body, flue gas recirculation supply air system, filtrating equipment of flue gas, oxygen-enriched blasting system, smoke gas afterheat heat exchanger, gas cleaning
Device：
The burning furnace main body includes a combustion room 2 and dual firing chamber 3, and a combustion room 2 is gasified for refuse pyrolysis, caused flammable
Gas delivers to dual firing chamber 3, and a combustion room is equipped with least one first burner 1, for the air-supply of a combustion room 2 and the spray of auxiliary fuel
Enter, realize the pyrolytic gasification of rubbish in a combustion room 2；Dual firing chamber 3 is further burned to fuel gas caused by a combustion room 2, and it is filled
There is the second burner 4, for the air-supply of dual firing chamber 3 and the penetrating of auxiliary fuel；
The flue gas recirculation supply air system includes flue gas booster fan 103, heat exchanger 13 and flue gas loopback pipeline 81；Its
Heat exchanger 13 is connected by flue gas pipeline bus with dual firing chamber exhanst gas outlet；The filtrating equipment of flue gas 14 is arranged on heat exchanger 13
Exhanst gas outlet, the flue gas loopback pipeline are that filtrating equipment of flue gas 14 exports the pipeline for being connected to incinerator；Wherein flue gas is pressurized
Blower fan 103 is arranged on flue gas loopback pipeline 81, positioned at the top of flue gas loopback pipeline；Flue gas caused by dual firing chamber 3 is through heat exchange
Device 13 exchanges heat, then after filtrating equipment of flue gas 14 filters out pellet thing, all the way through outside flue gas outside the discharge system of comb line 82, another way
Pressurizeed through flue gas booster fan 103, be recycled to dual firing chamber 3 through flue gas loopback pipeline 82, the effect of flue gas loopback is to improve two combustions
Effect is burned in turbulivity in room 3, enhancing so that pollutant such as bioxin presoma generation is less and decomposes completely, reduces pollution
Thing discharges；
In the present embodiment, the flue gas loopback pipeline 81 of the flue gas booster fan 103 to dual firing chamber 3 divides two-way：All the way 811
The second burner of dual firing chamber 4 is recycled to, has gauge table 63 and regulating valve 53 on this pipeline 811；812 it is recycled to dual firing chamber all the way and follows
Ring flue gas entrance 19, there are dosage table 64 and regulating valve 54 on this pipeline 812；
In the present embodiment, the outer comb line 82 of the flue gas is that the outlet of filtrating equipment of flue gas 14 is connected to system smoke evacuation outlet
Pipeline, including smoke eliminator 16 and air-introduced machine 102；Discharged gas fume is net through flue gas after the cooling of smoke gas afterheat heat exchanger 15
Outer row after the pollutant in 16 further removing flue gases is put in makeup；The air-introduced machine 102 is arranged on the row of the outer comb line 82 of flue gas
Cigarette exports；
In the present embodiment, the smoke gas afterheat heat exchanger 15 is located on the outer comb line 82 of flue gas, positioned at smoke eliminator
Before 16, heat exchanger 15 is used for the cooling medium and the discharged gas fume of the outer conveying of comb line 82 of flue gas that cooling medium pipeline 17 conveys
Heat exchange, by the flue gas cool-down of outer row, the heat that cooling medium obtains can be applied recycling by system peripheral；
In the present embodiment, in addition to oxygen-enriched blasting system, the oxygen-enriched blasting system include oxygen-enriched air generating device 7,
Oxygen booster fan 101, switch valve 12, diffusion valve 11 in oxygen pipeline bus 9；Oxygen-enriched air generating device 7 and oxygen increase
Pressure fan 101 is switched to heat exchanger 13 after being connected, and the oxygen outlet end of heat exchanger 13 is connected with hot oxygen main pipe line 9B, hot oxygen main pipe line
The 9B other ends are connected by the first hot oxygen pipeline branch line 91 with the first burner 1 of a combustion room 2 respectively, pass through the second hot oxygen
Pipeline branch line 92 connects with the second burner 4 of dual firing chamber 3；Oxygen-enriched air caused by oxygen-enriched air generating device 7, increases through oxygen
Pressure fan 101 pressurizes and heat exchanger 13 preheats, and 91 detection and regulation through gauge table 61 and regulating valve 51 all the way, delivers to a combustion room
2 the first burner 1, detection and regulation of the another way 92 through gauge table 62 and regulating valve 52, deliver to the second burning of dual firing chamber 3
Device 4, oxygen-enriched blasting system, the oxygen concentration in being blown to a combustion room 2 and dual firing chamber 3 is improved, the rubbish of a combustion room 2 can be stablized
Pyrolytic gasification process, and caused fuel gas calorific value is higher, is advantageous to the burning of dual firing chamber 3, oxygen-enriched blasting system is also
The ignition temperature of dual firing chamber 3 is improved, reduces the generation of pollutant such as bioxin presoma, oxygen-enriched blasting system reduces auxiliary combustion
Material consumption, improve the efficiency of utilization of incinerator；
In the present embodiment, the outer comb line of the flue gas also includes smoke eliminator 16, for the acidity in flue gas into
Divide and neutralized so that HCl, SO in flue gas2Removed Deng acidic materials；
In the present embodiment, the pattern of the oxygen-enriched air generating device 7 is UF membrane oxygenerator；
In the present embodiment, the running temperature of the filtrating equipment of flue gas 14 is preferably 400 DEG C, in this temperature by flying dust etc.
Grain traps 200-400 DEG C of the de novo formation heterogeneous catalytic reaction that flying dust can be avoided to occur with component in flue gas, reduces
Flue Zhong bioxin catalyzes and synthesizes；
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modification, simplification, equivalent substitution and improvement for being made within the spirit and principles of the invention etc.,
It should be included within protection scope of the present invention.
Claims (8)
- The oxygen-enriched incinerator 1. a kind of refuse pyrolysis using flue gas recirculation mode gasifies, it is characterised in that including burning furnace main body With flue gas recirculation supply air system：The burning furnace main body includes combustion room (2) and dual firing chamber (3), combustion room (2) for refuse pyrolysis gasification, it is caused can Combustion gas body delivers to dual firing chamber (3)；One combustion room (2) at least one first burner (1) be housed, for one fire room (2) air-supply and The penetrating of auxiliary fuel, realize the pyrolytic gasification of combustion room (2) interior rubbish；Dual firing chamber (3) can caused by room (2) for being fired to one Combustion gas body is burned, and it is equipped with the second burner (4), for the air-supply of dual firing chamber (3) and the penetrating of auxiliary fuel；The flue gas recirculation supply air system includes heat exchanger (13), flue gas booster fan (103) and flue gas loopback pipeline (81)；Two Combustion room (3) exhanst gas outlet is connected by flue gas pipeline bus (8) with heat exchanger (13), and heat exchanger (13) is through flue gas loopback pipeline (81) it is connected to incinerator；The flue gas booster fan (103) is arranged on flue gas loopback pipeline (81)；Flue gas booster fan (103) two-way is divided to be connected to dual firing chamber (3) to the flue gas loopback pipeline of dual firing chamber (3), all the way through the first flue gas loopback pipeline branch Line (811) is connected to the second burner (4) of dual firing chamber (3), is connected to two through the second flue gas loopback pipeline branch line (812) all the way Fire room circulating flue gas entrance (19)；Also include filtrating equipment of flue gas (14), filtrating equipment of flue gas (14) is arranged on heat exchanger (13) outlet and flue gas loopback pipeline (81) between entrance, abrasion of the particle to flue gas booster fan (103) in reduction flue gas, and/or filtrating equipment of flue gas (14) Running temperature is 500-400 DEG C, reduces catalyzing and synthesizing for flue Zhong bioxin；In work, flue gas caused by dual firing chamber (3) is after flue gas pipeline bus (8) is sent to heat exchanger (13) heat exchange, all the way through cigarette Outside outer comb line (82) discharge system of gas, another way is pressurizeed through flue gas booster fan (103), through flue gas loopback pipeline (81) loopback To dual firing chamber (3).
- The oxygen-enriched incinerator 2. refuse pyrolysis according to claim 1 gasifies, it is characterised in that also including oxygen-enriched blasting system System,The oxygen-enriched blasting system includes oxygen-enriched air generating device (7) and oxygen booster fan (101), and both connect after being connected To heat exchanger (13)；Heat exchanger (13) oxygen outlet end is connected with hot oxygen main pipe line (9B), and hot oxygen main pipe line (9B) passes through second Hot oxygen pipeline branch line (92) connects with the second burner (4) of dual firing chamber (3)；During work, oxygen-enriched air caused by oxygen-enriched air generating device (7), through oxygen booster fan (101) pressurization and heat exchanger (13) preheat, through hot oxygen main pipe line (9B), by the second hot oxygen pipeline branch line (92), deliver to the second burner of dual firing chamber (3) (4)。
- The oxygen-enriched incinerator 3. refuse pyrolysis according to claim 1 gasifies, it is characterised in that the outer comb line of described flue gas (82) it is that filtrating equipment of flue gas (14) outlet is connected to the pipeline that system smoke evacuation exports, including smoke eliminator (16) and air inducing Machine (102)；Discharged gas fume is after smoke gas afterheat heat exchanger (15) cooling, through in smoke eliminator (16) further removing flue gas Pollutant after outer arrange；The air-introduced machine (102) is arranged on the smoke evacuation outlet of the outer comb line (82) of flue gas.
- The oxygen-enriched incinerator 4. refuse pyrolysis according to claim 3 gasifies, it is characterised in that also including flue gas waste heat for heat exchange Device (15) and/or cooling medium pipeline (17)；The smoke gas afterheat heat exchanger (15) is used for the flue gas cool-down of outer row, described cold But medium pipeline (17) is used to reclaim discharged gas fume waste heat.
- The oxygen-enriched incinerator 5. refuse pyrolysis according to claim 2 gasifies, it is characterised in that the hot oxygen main pipe line (9B) Also it is connected with the first hot oxygen pipeline branch line (91), the first burner (1) of the first hot oxygen pipeline branch line other end and combustion room (2) Connection, for a combustion room (2) will to be sent to by the first hot oxygen pipeline branch line (91) through the oxygen-enriched air after heat exchanger (13) preheating The first burner (1).
- The oxygen-enriched incinerator 6. refuse pyrolysis according to claim 5 gasifies, it is characterised in that the first described hot oxygen pipeline Branch line (91), the second hot oxygen pipeline branch line (92), flue gas pipeline bus (8), the first flue gas loopback pipeline branch line (811) and second Flue gas loopback pipeline branch line (812) is provided with gauge table and regulating valve.
- The oxygen-enriched incinerator 7. the refuse pyrolysis according to claim 2 or 4 gasifies, it is characterised in that described oxygen-enriched air Preheating is realized by smoke gas afterheat heat exchanger (15), and the heat exchanger (13) adds cooling medium pipeline (17), is used for Mist heat recovering.
- The oxygen-enriched incinerator 8. refuse pyrolysis according to claim 1 gasifies, it is characterised in that the incinerator also includes sky Gas supply line, the air supply pipeline include supercharging air blower fan (104), heat exchanger (13) and air line (18), empty Gas booster fan (104) is used for after air pressurized is sent into heat exchanger (13) heat exchange, and a combustion room is sent into through air line (18) (2)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510900753.2A CN105333440B (en) | 2015-12-08 | 2015-12-08 | A kind of refuse pyrolysis gasification oxygen-enriched incinerator of smoke gas circulating type |
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| CN114453398A (en) * | 2021-12-10 | 2022-05-10 | 南京万德斯环保科技股份有限公司 | System for utilize direct organic waste pyrolysis carbomorphism of circulation flue gas |
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