CN105605592A - Waste gas combustion treatment equipment and waste gas treatment method - Google Patents

Waste gas combustion treatment equipment and waste gas treatment method Download PDF

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Publication number
CN105605592A
CN105605592A CN201511023765.8A CN201511023765A CN105605592A CN 105605592 A CN105605592 A CN 105605592A CN 201511023765 A CN201511023765 A CN 201511023765A CN 105605592 A CN105605592 A CN 105605592A
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China
Prior art keywords
combustion chamber
waste gas
downstream
heat
gas
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CN201511023765.8A
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Chinese (zh)
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CN105605592B (en
Inventor
朱志荣
金益娟
练勇江
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JIANGSU YIKE HEAT TREATMENT EQUIPMENT Co Ltd
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JIANGSU YIKE HEAT TREATMENT EQUIPMENT Co Ltd
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Publication of CN105605592A publication Critical patent/CN105605592A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • F23G7/066Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator

Abstract

The invention discloses waste gas combustion treatment equipment and a waste gas treatment method. The waste gas combustion treatment equipment comprises an upstream combustion chamber and a downstream combustion chamber which are in series connection. Due to the arrangement of the upstream combustion chamber and the downstream combustion chamber, a waste gas can be preheated before entering the downstream combustion chamber, at the same time a combustible gas can be combusted in the downstream combustion chamber so as to provide heat for a downstream heat accumulation combustion chamber together, so that sufficient temperature can be achieved in the downstream heat accumulation combustion chamber to treat an ammonia gas which is hard to decompose in waste gases.

Description

A kind of waste gas burning treatment facility and waste gas processing method thereof
Technical field
The present invention relates to technical field of waste gas treatment, particularly a kind of waste gas burning processing is establishedStandby and waste gas processing method.
Background technology
Nitriding process has become the conventional process in the fields such as metallurgical processing, but conventional nitrogenChange after furnace apparatus uses and remain a part of waste gas, for example, common waste gas has ammonia, needsCarry out exhaust-gas treatment.
In existing nitriding furnace waste gas treatment process, waste gas is conventionally by the processing of fuel gas buring modeRear discharge. But, because ammonia decomposition temperature is very high, in actual processing procedure, logicalChang Wufa decomposes completely or burns, and easily has residual ammonia emission in surrounding environment, and thisA little ammonias have intense stimulus smell, harmful, contaminated environment, and easily corrode factoryMetallic article in room. Therefore, a kind of processing is containing the burning treatment facility of the residual waste gas of ammoniaUrgently demand.
Summary of the invention
The object of the present invention is to provide a kind of waste gas burning treatment facility and exhaust-gas treatment side thereofMethod, solves the residual problems of equipment ammonia such as nitriding furnace.
The invention provides a kind of waste gas burning treatment facility, comprise: combustion chamber, for burningWaste gas; Gas inlet pipeline, connects combustion chamber, for waste gas is transported to combustion chamber; RowPut pipeline, connect combustion chamber, for discharging combustion chamber gas after treatment; Gas pipeline,Arrive combustion chamber for delivery of combustion gas; Igniter, connects combustion chamber; It is characterized in that combustionBurn combustion chamber, upstream and combustion chamber, downstream that chamber comprises series connection, the heat that combustion chamber, upstream producesHeating combustion chamber, downstream.
For higher temperature is provided, combustion chamber, above-mentioned downstream adopt heat-accumulation combustion chamber, described in holdHot chamber comprises housing and heat-insulation layer.
In order to make waste gas (as ammonia) better burn or decompose, described heat-insulation layer is manyLayer is built the labyrinth type building of moulding by laying bricks or stones. Preferably, every layer of described heat-insulation layer adopts alumina silicateCeramic fiber blanket is built by laying bricks or stones.
In order to ensure the reliability of heat-accumulation combustion chamber, described housing is to adopt heat-resisting steel sheet and plate weldingThe steel plate circular cylindrical shell forming.
In order to detect the temperature of combustion chamber, management and control downstream, combustion chamber, described downstream is also provided with a temperatureDegree meter.
For give combustion chamber, downstream better heat, combustion chamber, described upstream comprise fire ring andWind scooper, described fire ring is connected with fuel gas pipeline, and described igniter connects and lights a fireDescribed fire ring.
Better enter wind scooper for the ease of air combustion-supporting, described wind scooper is up-small and down-bigHorn shape.
For above-mentioned waste gas burning treatment facility, the present invention also provides a kind of waste gas processing method,Comprise step: provide natural gas and waste gas to upstream combustion chambers burn; Combustion chamber, upstream is providedHeat heat combustion chamber, downstream; Provide waste gas behind combustion chamber, upstream in combustion chamber, downstreamAfter middle burning, discharge.
In order to save the energy, when reaching after preset time t or preset temperature, close gas pipelineStop providing natural gas.
Waste gas burning treatment facility provided by the invention, the upstream burning that comprising is in series arrangesChamber and combustion chamber, downstream, arrange by the upstream and downstream of this combustion chamber, and waste gas is being enteredBefore combustion chamber, downstream, obtain preheating, in the lump by combustion chamber, downstream gas fuel burning simultaneouslyFor heat-accumulation combustion chamber, downstream provides heat, thereby make heat-accumulation combustion chamber, downstream reach enoughTemperature is processed the difficult ammonia decomposing in waste gas.
Brief description of the drawings
In accompanying drawing, identical Reference numeral shows same or similar structure.
Fig. 1 is the structural representation of a kind of waste gas burning treatment facility in the embodiment of the present invention.
Wherein: 11 fire rings; 13 wind scoopers; 15 gas pipelines; 17 igniters; 19Gas inlet pipeline; 21 housings; 23 heat-insulation layers; 25 discharge tubes.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, logical belowCross drawings and Examples, technical scheme of the present invention is described in further detail. ShouldUnderstand, specific embodiment described herein is only for explaining principle of the present invention,Be not intended to limit the present invention.
As shown in Figure 1, a kind of waste gas burning treatment facility provided by the invention, comprises: combustionBurn chamber, gas inlet pipeline, discharge tube, igniter and gas pipeline. Wherein, combustionBurning chamber specifically comprises combustion chamber, upstream and the combustion chamber, downstream of series connection.
Referring to Fig. 1, combustion chamber, upstream comprises fire ring 11 and wind scooper 13, fire ring one endConnect gas pipeline 15, the other end connects igniter 17, and fire ring middle part connects waste gas and entersFeed channel 19. After igniter 17 ignition rings 11, the natural gas in gas pipeline 15With airborne combination with oxygen, fully burning, heats the heat-accumulation combustion chamber in downstream.It is up-small and down-big horn-like that the wind scooper 13 of fire ring 11 upper ends is, when gas inlet pipelineAfter 19 waste gas that produce are injected wind scooper, form negative pressure, the air that is beneficial to wind scooper 13 end openings entersEnter the interior participation of wind scooper combustion-supporting.
In order to facilitate the management and control of natural gas, on above-mentioned gas pipeline 15, be also provided with magnetic valve, energyEven if open or close gas pipeline 15. In igniter 17, be also provided with flame detector, whenDetect when fire ring is not lighted a fire or flame light intensity is undesirable, and alarm. Need noteMeaning, because the waste gas after the firm blow-on of nitriding furnace is not easy to be lighted, combustion chamber, downstream alsoCan preheat to waste gas itself more easy quilt while making waste gas enter combustion chamber, downstreamLight or add thermal decomposition.
Combustion chamber, downstream adopts heat-accumulation combustion chamber, and it receives the heating of combustion chamber, above-mentioned upstream,Comprise housing 21 and heat-insulation layer 23. Housing 21 is the steel plate cylinders that adopt heat-resisting steel sheet and plate to form,Concrete, it adopts upper and lower heat-resisting steel sheet and plate to be welded. Heat-insulation layer 23 is designed to multilayerLabyrinth type building, is conducive to ammonia and stops the long period on this heat-insulation layer, makes ammonia moreDecompose fully. Concrete, every layer of employing heat-resistant insulation material of heat-insulation layer, as adopted silicic acidAluminium ceramic fiber blanket is built by laying bricks or stones. It is pointed out that above-mentioned heat-insulation layer is not limited in labyrinth typeTier building, can also adopt other sandwich construction, as the stepped guarantor of alternate intervals settingTemperature layer.
Concrete, the above-mentioned waste gas burning treatment facility course of work is as follows: open magnetic valve,Pass into imflammable gas (as natural gas) toward upstream combustion chamber, passing into natural gas and waste gas arrives, igniter is lighted a fire to fire ring when the combustion chamber, upstream; Combustion of natural gas heating downstreamWaste gas is carried out to preheating when heat-accumulation combustion the chamber; The waste gas of preheating enters heat-accumulation combustion chamber,Under the high temperature of labyrinth type heat-insulation layer, fully decompose and burn, the gas after final combustionBody is discharged heat-accumulation combustion chamber. It needs to be noted, fire downstream accumulation of heat combustion chamber, upstreamWhen burning one section of chamber heating, as 30 minutes, heat-accumulation combustion chamber, downstream reach preset temperature (as900 degree, ammonia can fully decompose in 900 degree left and right), can stop providing natural gas, therebySave the energy.
For above-mentioned waste gas burning treatment facility, the present invention is the corresponding waste gas that this equipment is provided alsoProcessing method, specifically comprises following steps: provide natural gas and waste gas to fire to combustion chamber, upstreamBurn; Provide the heat of combustion chamber, upstream to heat combustion chamber, downstream; Provide behind combustion chamber, upstreamWaste gas in combustion chamber, downstream, burn after discharge. Especially, when being arranged on downstream accumulation of heat combustionThe thermometer burning on chamber detects that temperature reaches temperature (as 900 degree), closed electromagnetic valve combustion gasPipeline; Or reach after preset time t, as 30 minutes, closed electromagnetic valve gas pipeline.
Waste gas burning treatment facility provided by the invention, the upstream burning that comprising is in series arrangesChamber and combustion chamber, downstream, arrange by the upstream and downstream of this combustion chamber, and waste gas is being enteredBefore combustion chamber, downstream, obtain preheating, in the lump by combustion chamber, downstream gas fuel burning simultaneouslyFor heat-accumulation combustion chamber, downstream provides heat, thereby make heat-accumulation combustion chamber, downstream reach enoughTemperature is processed the difficult ammonia decomposing in waste gas.
Above-described detailed description of the invention, to object of the present invention, technical scheme and usefulEffect further describes. Institute it should be understood that and the foregoing is only the present inventionDetailed description of the invention, the protection domain being not intended to limit the present invention, all at thisWithin bright spirit and principle, any amendment of making, be equal to replacement, improvement etc., all shouldWithin being included in protection scope of the present invention.

Claims (10)

1. a waste gas burning treatment facility, comprises:
Combustion chamber, for burnt gas;
Gas inlet pipeline, connects combustion chamber, for waste gas is transported to combustion chamber;
Discharge tube, connects combustion chamber, for discharging combustion chamber gas after treatment;
Gas pipeline, arrives combustion chamber for delivery of combustion gas;
Igniter, connects combustion chamber;
It is characterized in that the combustion chamber, upstream that combustion chamber comprises series connection and combustion chamber, downstream, upstream combustionBurn the heat heating combustion chamber, downstream that chamber produces.
2. waste gas burning treatment facility according to claim 1, is characterized in that, described inCombustion chamber, downstream adopts heat-accumulation combustion chamber, and described heat-accumulation combustion chamber comprises housing and heat-insulation layer.
3. waste gas burning treatment facility according to claim 2, is characterized in that, described inHousing is the steel plate circular cylindrical shell that adopts heat-resisting steel sheet and plate welding to form.
4. waste gas burning treatment facility according to claim 2, is characterized in that, described inHeat-insulation layer is the labyrinth type building that multilayer is built moulding by laying bricks or stones.
5. waste gas burning treatment facility according to claim 4, is characterized in that, described inEvery layer of heat-insulation layer adopts alumina-silicate ceramic fibre felt to build by laying bricks or stones.
6. waste gas burning treatment facility according to claim 1, is characterized in that, described inCombustion chamber, upstream comprises fire ring and wind scooper, and described fire ring is connected with fuel gas pipeline, described inIgniter connects and the described fire ring of lighting a fire.
7. waste gas burning treatment facility according to claim 6, is characterized in that, described inWind scooper is up-small and down-big horn shape.
8. waste gas burning treatment facility according to claim 1, is characterized in that, described inCombustion chamber, downstream is also provided with thermometer.
One kind for as power 1 to the exhaust-gas treatment of waste gas burning treatment facility of power 8 any oneMethod, is characterized in that, comprises following steps:
Provide natural gas and waste gas to upstream combustion chambers burn;
Provide the heat of combustion chamber, upstream to heat combustion chamber, downstream;
Discharge after providing waste gas behind combustion chamber, upstream to burn in combustion chamber, downstream.
10. waste gas processing method according to claim 9, is characterized in that: described waste gasProcessing method also comprises step: reach after preset time t, close gas pipeline and stop providing naturalGas.
CN201511023765.8A 2015-12-30 2015-12-30 A kind of waste gas burning processing equipment and its waste gas processing method Active CN105605592B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108758660A (en) * 2018-04-28 2018-11-06 华中科技大学 A kind of exhaust gas combustion chamber and method for solid oxide fuel battery system
CN110440268A (en) * 2019-08-09 2019-11-12 陈景鹤 The oxygen barrier carbonization of house refuse low temperature pyrogenation and second-time burning integrated device
CN110993995A (en) * 2019-11-29 2020-04-10 江苏大学 Fuel cell combustion type tail gas treatment device and control method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008292011A (en) * 2007-05-22 2008-12-04 Zet:Kk Waste gas treatment method
CN103742929A (en) * 2014-01-25 2014-04-23 通富热处理(昆山)有限公司 Waste gas treatment device for nitriding furnace
CN204554840U (en) * 2015-04-14 2015-08-12 郑爱民 A kind of industrial waste gas combustion apparatus
CN204880259U (en) * 2015-08-20 2015-12-16 成都勇创金诺科技有限公司 Liquid fuel special furnace end that burns
CN204880260U (en) * 2015-08-20 2015-12-16 成都勇创金诺科技有限公司 Effectual liquid fuel furnace end gasifies

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008292011A (en) * 2007-05-22 2008-12-04 Zet:Kk Waste gas treatment method
CN103742929A (en) * 2014-01-25 2014-04-23 通富热处理(昆山)有限公司 Waste gas treatment device for nitriding furnace
CN204554840U (en) * 2015-04-14 2015-08-12 郑爱民 A kind of industrial waste gas combustion apparatus
CN204880259U (en) * 2015-08-20 2015-12-16 成都勇创金诺科技有限公司 Liquid fuel special furnace end that burns
CN204880260U (en) * 2015-08-20 2015-12-16 成都勇创金诺科技有限公司 Effectual liquid fuel furnace end gasifies

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108758660A (en) * 2018-04-28 2018-11-06 华中科技大学 A kind of exhaust gas combustion chamber and method for solid oxide fuel battery system
CN110440268A (en) * 2019-08-09 2019-11-12 陈景鹤 The oxygen barrier carbonization of house refuse low temperature pyrogenation and second-time burning integrated device
CN110993995A (en) * 2019-11-29 2020-04-10 江苏大学 Fuel cell combustion type tail gas treatment device and control method thereof
CN110993995B (en) * 2019-11-29 2021-02-12 江苏大学 Fuel cell combustion type tail gas treatment device and control method thereof

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