CN111678155B - Tubular furnace incineration system - Google Patents
Tubular furnace incineration system Download PDFInfo
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- CN111678155B CN111678155B CN202010521232.7A CN202010521232A CN111678155B CN 111678155 B CN111678155 B CN 111678155B CN 202010521232 A CN202010521232 A CN 202010521232A CN 111678155 B CN111678155 B CN 111678155B
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- chlorobenzene
- quartz
- flue gas
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- inner tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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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
- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
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- General Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Incineration Of Waste (AREA)
Abstract
A tubular furnace incineration system is mainly used for the control research of chlorobenzene in the incineration process. The method comprises the steps of utilizing a tube furnace as an incinerator, arranging a double-layer quartz tube in the tube furnace, arranging an object to be treated in a quartz inner tube, fixing the object to be treated in the quartz inner tube through a high-temperature resistant fly ash interlayer, enabling reaction gas to pass through the high-temperature resistant fly ash interlayer to perform oxidation reaction with the object to be treated in the pyrolysis process, fixing fly ash in the quartz inner tube through the high-temperature resistant fly ash interlayer in the process, enabling generated chlorobenzene to rapidly penetrate through the high-temperature resistant fly ash interlayer along with flue gas to enter a quartz outer tube, then entering a spraying tank, being leached and absorbed in the spraying tank, and meanwhile, arranging a leakage detection system. The chlorobenzene amount generated by burning the unit object to be treated is accurately obtained through chlorobenzene absorption and environmental detection.
Description
Technical Field
The invention relates to the field of waste treatment and incineration, in particular to control of a dioxin precursor chlorobenzene.
Background
Dioxins (PCDD/Fs) are a generic term for polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), and are classified into 75 PCDD isomers and 135 PCDF isomers depending on the number and position of substitution with chlorine atoms. Since dioxin is discovered in flue gas of a garbage incinerator in 1977 to the present, research on a generation mechanism and a control technology of dioxin is always a key field researched by related researchers, and aims to improve a garbage incineration technology, strengthen environmental pollution control and ensure human survival health. Among them, the incineration disposal of hazardous wastes is more dangerous, and the prior art has proved that the other disposal methods except the incineration method cannot completely eliminate the toxic substances in the hazardous wastes.
It is known that dioxins emitted from incinerators are mainly catalytically synthesized in the incineration process. Wherein chlorobenzene is the main raw material for its synthesis. Therefore, the control of chlorobenzene in the process of waste incineration is particularly critical, when the existing incinerator system is incinerated, the fly ash generated in the process of incineration of the object to be treated flows along with the flue gas, and substances in the fly ash and the chlorobenzene in the flue gas react to synthesize dioxin. Meanwhile, the problem of leakage of chlorobenzene in the incineration process is solved, and how to detect the leaked chlorobenzene is also important.
Disclosure of Invention
The application provides a tubular furnace incineration system for the research of dioxin predecessor chlorobenzene is convenient for control the dioxin production in the incinerator. The amount of chlorobenzene generated after the incineration of the unit object to be treated is accurately obtained through the absorption of the mixed liquid and the environmental detection.
The tubular furnace incineration system comprises a chlorobenzene incineration system and a chlorobenzene recovery system; the chlorobenzene incineration system comprises a three-section horizontal tube furnace, the three-section horizontal tube furnace comprises a gas supply device, and the gas supply device is sequentially connected with a flow regulating valve, an orifice plate flowmeter and a quartz inner tube through a gas supply pipe; the outer part of the quartz inner tube is sleeved with a quartz outer tube, the outer part of the quartz outer tube is sleeved with a heating device, and then the heating device is fixed on the quartz outer tube through a heat-preservation fixing layer; the object to be treated is arranged in the quartz inner tube, the object to be treated is clamped in the middle through the high-temperature resistant fly ash interlayer and is fixed in the quartz inner tube, reaction gas and flue gas can pass through the high-temperature resistant fly ash interlayer, the quartz inner tube is arranged away from a gas supply end and is provided with an opening, and the generated chlorobenzene can conveniently flow into the quartz outer tube along with the flue gas from the quartz inner tube; the device is characterized by further comprising a temperature thermocouple, a flue gas sampling meter and a temperature rise controller, wherein the temperature thermocouple and the flue gas sampling meter are arranged in the quartz outer pipe, and the flow regulating valve, the orifice plate flowmeter, the heating device, the temperature thermocouple and the flue gas sampling meter are respectively connected with the temperature rise controller.
Chlorobenzene recovery system is including spraying jar and cold bath, and the quartz outer tube passes through the flue gas delivery pipe and connects gradually and sprays jar and cold bath, adopts the chlorobenzene of the mode of spraying mixed liquid in to the flue gas to wash and collect.
The top in the spraying tank is provided with an annular nozzle, atomizing nozzles are arranged downwards around the annular nozzle, the annular nozzle is connected with a circulating pipe, a circulating pump is arranged on the circulating pipe, and an inlet of the circulating pipe is arranged at a position below the liquid level at the bottom of the spraying tank.
The spraying mixed liquid is prepared by mixing acetone and cyclohexane according to the volume of 1: 2, the cold bath pool absorbs and seals the discharged flue gas.
The system comprises an incineration system and is characterized by further comprising a leakage detection system, wherein the incineration system is arranged in a closed operation chamber, a chlorobenzene sampling instrument is arranged in the closed operation chamber, and the chlorobenzene leakage amount in the surrounding environment of the incineration system is detected through the chlorobenzene sampling instrument.
The utility model provides an incineration system sets up double-deck quartz capsule, wherein the flying dust sets up in the quartz capsule of inlayer, and it is fixed with the pending thing through high temperature resistant flying dust intermediate layer in the quartz capsule, reaction gas can pass high temperature resistant flying dust intermediate layer and wherein pending thing oxidation reaction in the pyrolysis process, the flying dust that produces after this in-process high temperature resistant flying dust intermediate layer will pending thing burning is fixed in the quartz capsule, and the chlorobenzene that produces can be along with the flue gas permeate through high temperature resistant flying dust intermediate layer fast and get into the quartz capsule, get into the chlorobenzene absorption liquid at last, avoid burning the chlorobenzene that produces and fly ash reaction synthesis dioxin. The amount of chlorobenzene produced in the actual reduced fly ash incineration.
Meanwhile, the incinerator research test platform is placed in a closed operation room, a chlorobenzene sampling instrument is arranged in the closed operation room, and the chlorobenzene leakage amount in the surrounding environment of the incinerator research test platform is detected through the chlorobenzene sampling instrument. Further real reaction of chlorobenzene amounts.
Description of the drawings:
FIG. 1 is a schematic view of the overall structure of the incineration system of the tube furnace of the present application.
Reference numerals: 1-a gas supply device, 2-a flow regulating valve, 3-an orifice flowmeter, 4-a heat preservation fixed layer, 5-a heating device, 6-a quartz outer tube, 7-a quartz inner tube, 8-a high temperature resistant fly ash interlayer, 9-a to-be-treated object, 10-a temperature thermocouple, 11-a flue gas sampling meter, 12-a heating controller, 13-an atomization spray tank, 14-a cold bath, 15-a closed operation chamber, 16-a chlorobenzene sampling instrument, 17-an annular nozzle and 18-a circulating pump.
The specific implementation mode is as follows:
in the description of the present application, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The utility model provides a tubular furnace system of burning, burn the research that the system is arranged in burning secondary pollutant chlorobenzene, test platform includes chlorobenzene system of burning, chlorobenzene recovery system and reveals detecting system. The amount of chlorobenzene generated after the unit fly ash is burnt is accurately obtained through the absorption of mixed liquid and the environmental detection.
The chlorobenzene incineration system comprises a three-section horizontal tube furnace, the three-section horizontal tube furnace comprises a gas supply device 1, and the gas supply device 1 is sequentially connected with a flow regulating valve 2, an orifice plate flowmeter 3 and a quartz inner tube 7 through a gas supply pipe; a quartz outer tube 6 is sleeved outside the quartz inner tube 7, a heating device 5 is sleeved outside the quartz outer tube 6, and then the heating device 5 is fixed on the quartz outer tube through a heat-preservation fixing layer 4; the object to be treated 9 is arranged in the quartz inner tube 7, the fly ash 9 is clamped in the middle and fixed in the quartz inner tube 7 through the high-temperature resistant fly ash interlayer 8, the reaction gas and the flue gas can pass through the high-temperature resistant fly ash interlayer 8, the quartz inner tube 7 is arranged away from the gas supply end and is provided with an opening, and the generated chlorobenzene can conveniently flow into the quartz outer tube 6 along with the flue gas from the quartz inner tube 7; the device is characterized by further comprising a temperature thermocouple 10, a flue gas sampling meter 11 and a temperature rise controller, wherein the temperature thermocouple 10 and the flue gas sampling meter 11 are arranged in the quartz outer tube 6, and the flow regulating valve 2, the orifice plate flowmeter 3, the heating device 5, the temperature thermocouple 10 and the flue gas sampling meter 11 are respectively connected with the temperature rise controller 12.
The chlorobenzene recovery system comprises a spraying tank 13 and a cold bath 14, the quartz outer tube 6 is sequentially connected with the spraying tank 13 and the cold bath 14 through a flue gas discharge pipe, and chlorobenzene in flue gas is cleaned and collected by adopting a mixed liquid spraying mode.
The top is provided with annular shower nozzle 17 in spraying tank 13, is provided with atomizing nozzle around annular shower nozzle downwards, and annular shower nozzle 17 is connected at circulating pipe, is provided with circulating pump 18 on circulating pipe, and the circulating pipe entry is arranged in the position below spraying tank bottom liquid level.
The object 9 to be treated is oxidized in a three-stage horizontal tube furnace by adopting a thermal decomposition reaction mode at a high temperature. The temperature rise controller 12 is used for controlling the temperature rise speed of the heating device 5, the temperature thermocouple 10 and the flue gas sampling meter 11 are used for detecting the temperature in the furnace and the chlorobenzene content in the flue gas, and meanwhile, the temperature rise program controller 12 is used for controlling the opening of the flow regulating valve 2 in real time through monitoring of the orifice plate flowmeter 3.
Chlorobenzene recovery system includes that the atomizing sprays jar 13 and cold bath 14, and quartz outer tube 6 connects gradually the atomizing through flue gas discharge pipe and sprays jar 13 and cold bath 14, and wherein spray mixed liquid and be acetone and cyclohexane according to volume 1: 2, and the cold bath pool 14 absorbs and seals the discharged flue gas.
The heating device 5 is a carbon silicon rod, and the temperature rise rate of the carbon silicon rod is controlled by the temperature rise program controller 12 by utilizing the characteristics of high heating speed and convenient control of the carbon silicon rod. The reaction gas is air, oxygen-enriched gas or pure oxygen.
The test platform is provided with a double-layer quartz tube, wherein an object to be treated 9 is arranged in a quartz inner tube 7, the object to be treated 9 is fixed in the quartz inner tube 7 through a high-temperature resistant fly ash interlayer 8, reaction gas can penetrate through the high-temperature resistant fly ash interlayer 8 to carry out oxidation reaction with the object to be treated 9 in the pyrolysis process, the object to be treated 9 is fixed in the quartz inner tube 7 through the high-temperature resistant fly ash interlayer 8 in the process, and generated chlorobenzene can rapidly penetrate through the high-temperature resistant fly ash interlayer 8 along with flue gas to enter a quartz outer tube 6 and finally enter chlorobenzene absorption liquid to avoid catalytic reaction between the chlorobenzene and substances in fly ash to synthesize dioxin, so that the amount of chlorobenzene is generated in real reduction fly ash incineration.
Meanwhile, the incineration system is placed in a closed operation chamber 15, a chlorobenzene sampling instrument 16 is arranged in the closed operation chamber 15, and the chlorobenzene leakage amount in the surrounding environment of the incineration system is detected through the chlorobenzene sampling instrument 16.
The amount of chlorobenzene generated after the incineration of the unit object to be treated is accurately obtained through the absorption of the mixed liquid and the environmental detection.
While the present invention has been described with reference to the specific embodiments, it should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes and modifications within the scope of the appended claims without affecting the spirit of the present invention.
Claims (4)
1. A tubular furnace system of burning which characterized in that: the tubular furnace incineration system is used for controlling and researching chlorobenzene in an incineration process, and comprises a chlorobenzene incineration system and a chlorobenzene recovery system;
the chlorobenzene incineration system comprises a three-section horizontal tube furnace, the three-section horizontal tube furnace comprises a gas supply device (1), and the gas supply device (1) is sequentially connected with a flow regulating valve (2), an orifice plate flowmeter (3) and a quartz inner tube (7) through a gas supply pipe; a quartz outer tube (6) is sleeved outside the quartz inner tube (7), a heating device (5) is sleeved outside the quartz outer tube (6), and then the heating device (5) is fixed on the quartz outer tube through a heat-preservation fixing layer (4); the object to be treated (9) is arranged in the quartz inner tube (7), the object to be treated (9) is clamped in the middle and fixed in the quartz inner tube (7) through the high-temperature resistant fly ash interlayer (8), the reaction gas and the flue gas can pass through the high-temperature resistant fly ash interlayer (8), the quartz inner tube (7) is arranged away from the gas supply end and is provided with an opening, and the generated chlorobenzene can conveniently flow into the quartz outer tube (6) along with the flue gas from the quartz inner tube (7); the device is characterized by further comprising a temperature thermocouple (10), a flue gas sampling meter (11) and a temperature rise controller, wherein the temperature thermocouple (10) and the flue gas sampling meter (11) are arranged in the quartz outer tube (6), and the flow regulating valve (2), the orifice plate flowmeter (3), the heating device (5), the temperature thermocouple (10) and the flue gas sampling meter (11) are respectively connected with the temperature rise controller (12);
the chlorobenzene recovery system comprises a spraying tank (13) and a cold bath (14), the quartz outer tube (6) is sequentially connected with the spraying tank (13) and the cold bath (14) through a flue gas discharge pipe, and chlorobenzene in flue gas is cleaned and collected by adopting a mode of spraying mixed liquid.
2. The tubular furnace incineration system according to claim 1, further comprising a leakage detection system, wherein the incineration system is placed in a closed operation chamber (15), a chlorobenzene sampling instrument (16) is arranged in the closed operation chamber (15), and the chlorobenzene leakage amount in the environment around the incineration system is detected through the chlorobenzene sampling instrument (16).
3. The tubular furnace incineration system according to claim 1, wherein the spray tank (13) is internally provided with an annular spray head (17) at the top, atomizing nozzles are arranged downwards around the annular spray head, the annular spray head (17) is connected with a circulating water pipe, a circulating pump (18) is arranged on the circulating water pipe, and an inlet of the circulating water pipe is arranged at a position below the liquid level at the bottom of the spray tank.
4. The tube furnace incineration system of claim 1, the spray mixed liquor being acetone and cyclohexane in a volume of 1: 2, the cold bath pool (14) absorbs and seals the discharged smoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010521232.7A CN111678155B (en) | 2020-06-10 | 2020-06-10 | Tubular furnace incineration system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010521232.7A CN111678155B (en) | 2020-06-10 | 2020-06-10 | Tubular furnace incineration system |
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| CN111678155A CN111678155A (en) | 2020-09-18 |
| CN111678155B true CN111678155B (en) | 2021-09-10 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114729A (en) * | 1994-06-10 | 1996-01-10 | 法国石油研究所 | Furnace and method for heat processing of waste |
| JPH10205721A (en) * | 1997-01-24 | 1998-08-04 | Keihanna Kankyo Kk | Furnace for preventing generation of dioxin |
| JP2000346324A (en) * | 1999-06-10 | 2000-12-15 | Yamagata Marutei:Kk | Device for reducing dioxins or the like and radiating incinerating furnace |
| JP2001235125A (en) * | 2000-02-18 | 2001-08-31 | Fuji Electric Co Ltd | Induction heating type equipment for volume reduction treatment of macromolecular-series wastes |
| CN103113904A (en) * | 2013-03-13 | 2013-05-22 | 上海理工大学 | Experimental device for coal and biomass pyrolysis experiment |
| CN104588402A (en) * | 2015-02-02 | 2015-05-06 | 湖南鹞翔环保能源科技有限公司 | Solid waste innocent treatment device and method |
| CN111023112A (en) * | 2019-10-23 | 2020-04-17 | 生态环境部华南环境科学研究所 | System and method for adaptively adding dioxin inhibitor |
-
2020
- 2020-06-10 CN CN202010521232.7A patent/CN111678155B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114729A (en) * | 1994-06-10 | 1996-01-10 | 法国石油研究所 | Furnace and method for heat processing of waste |
| JPH10205721A (en) * | 1997-01-24 | 1998-08-04 | Keihanna Kankyo Kk | Furnace for preventing generation of dioxin |
| JP2000346324A (en) * | 1999-06-10 | 2000-12-15 | Yamagata Marutei:Kk | Device for reducing dioxins or the like and radiating incinerating furnace |
| JP2001235125A (en) * | 2000-02-18 | 2001-08-31 | Fuji Electric Co Ltd | Induction heating type equipment for volume reduction treatment of macromolecular-series wastes |
| CN103113904A (en) * | 2013-03-13 | 2013-05-22 | 上海理工大学 | Experimental device for coal and biomass pyrolysis experiment |
| CN104588402A (en) * | 2015-02-02 | 2015-05-06 | 湖南鹞翔环保能源科技有限公司 | Solid waste innocent treatment device and method |
| CN111023112A (en) * | 2019-10-23 | 2020-04-17 | 生态环境部华南环境科学研究所 | System and method for adaptively adding dioxin inhibitor |
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| CN111678155A (en) | 2020-09-18 |
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