CN111001266A - Coking waste gas treatment system - Google Patents
Coking waste gas treatment system Download PDFInfo
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- CN111001266A CN111001266A CN201911308886.5A CN201911308886A CN111001266A CN 111001266 A CN111001266 A CN 111001266A CN 201911308886 A CN201911308886 A CN 201911308886A CN 111001266 A CN111001266 A CN 111001266A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1468—Removing hydrogen sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a coking waste gas treatment system which comprises a gas treatment unit, an exhaust unit and an explosion-proof online monitoring unit, wherein the gas treatment unit comprises an alkaline washing tower, a low-temperature plasma waste gas treatment device, an oil washing tower and an acid washing tower which are sequentially arranged, the active carbon adsorption tower, the emission unit includes the buffer tank, the circulating pipe, main fan and aiutage, the buffer tank passes through the pipeline intercommunication with main fan and circulating pipe respectively, be equipped with the second valve on the pipeline between buffer tank and the main fan, be equipped with the third valve on the pipeline between buffer tank and the circulating pipe, circulating pipe and alkali wash tower intercommunication, explosion-proof on-line monitoring unit includes explosion-proof cabin, explosion-proof cabin includes the room body, the analytical instrument and the controller of setting in the room body, the active carbon adsorption tower passes through the pipeline intercommunication with analytical instrument and buffer tank respectively, be equipped with first valve on the pipeline between active carbon adsorption tower and the analytical instrument. The invention can effectively reduce the content of harmful gases in the discharged gas, in particular to the content of benzene and benzene series.
Description
Technical Field
The invention relates to the technical field of coking tail gas treatment, in particular to a coking waste gas treatment system.
Background
The exhaust emission of the coking enterprises mainly comes from the production devices of chemical production rooms, tank areas, various storage tanks, loading and unloading platforms and the like. The main components of the waste gas are benzene, naphthalene, phenols, non-methane total hydrocarbons, benzopyrene and other aromatic compounds, and most of the waste gas is volatile organic compounds. Therefore, if the waste gas is directly discharged into the atmosphere, the waste gas not only seriously pollutes the environment, but also seriously affects the health of field operators.
Disclosure of Invention
Based on the technical problems in the background art, the coking waste gas treatment system provided by the invention can effectively reduce the content of harmful gases in the discharged gas, especially the content of benzene and benzene series.
The invention provides a coking waste gas treatment system which comprises a gas treatment unit, an exhaust unit and an explosion-proof online monitoring unit, wherein the gas treatment unit comprises an alkaline washing tower, a low-temperature plasma waste gas treatment device, an oil washing tower, an acid washing tower and an active carbon adsorption tower which are sequentially arranged;
the discharge unit comprises a buffer tank, a circulating pipe, a main fan and an exhaust funnel, wherein the buffer tank is respectively communicated with the main fan and the circulating pipe through pipelines, a second valve is arranged on the pipeline between the buffer tank and the main fan, a third valve is arranged on the pipeline between the buffer tank and the circulating pipe, and the circulating pipe is communicated with the alkaline washing tower;
the anti-explosion online monitoring unit comprises an anti-explosion cabin, the anti-explosion cabin comprises a room body, an analysis instrument and a controller, the analysis instrument and the controller are arranged in the room body, the activated carbon adsorption tower is respectively communicated with the analysis instrument and the buffer tank through pipelines, and a first valve is arranged on the pipeline between the activated carbon adsorption tower and the analysis instrument;
the analyzer is connected with a controller through signals, and the controller respectively controls the first valve, the second valve, the third valve, the main fan, the alkaline washing tower, the low-temperature plasma waste gas treatment device, the oil washing tower, the acid washing tower and the active carbon adsorption tower.
Preferably, the system further comprises a pretreatment unit, wherein the pretreatment unit comprises a dust removal device, a heat exchanger and an oil-gas separation tower which are sequentially arranged, and the oil-gas separation tower is communicated with the alkaline washing tower.
Preferably, the dust collector further comprises a gas collecting system unit, wherein the gas collecting system unit comprises an exhaust main pipe, a collecting fan and one or more exhaust branch pipes, the exhaust branch pipes are all connected to the exhaust main pipe in parallel, the collecting fan is arranged on each exhaust branch pipe, and the exhaust main pipe is communicated with the dust removing equipment.
Preferably, the circulating pipe is provided with a first circulating branch pipe, a second circulating branch pipe, a third circulating branch pipe and a fourth circulating branch pipe, the first circulating branch pipe is communicated with the low-temperature plasma waste gas treatment device, the first circulating branch pipe is provided with a fourth valve, the second circulating branch pipe is communicated with the oil washing tower, the second circulating branch pipe is provided with a fifth valve, the third circulating branch pipe is communicated with the acid washing tower, the third circulating branch pipe is provided with a sixth valve, the fourth circulating branch pipe is communicated with the activated carbon adsorption tower, and the fourth circulating branch pipe is provided with a seventh valve.
Preferably, the explosion-proof cabin further comprises a gas detection device, an alarm device and a ventilation device, wherein the gas detection device comprises a combustible gas detector, a toxic gas detector, an oxygen content analyzer and a smoke sensor, and the alarm device comprises a combustible gas alarm, a toxic gas alarm, an oxygen content alarm, a smoke alarm and a ventilation device;
the combustible gas detector, the toxic gas detector, the oxygen detector and the smoke sensor are respectively in signal connection with the controller, and the controller is respectively in control connection with the combustible gas detector, the toxic gas detector, the oxygen detector and the smoke sensor.
The coking waste gas treatment system provided by the invention has the following beneficial effects:
(1) the content of harmful gases in the exhaust gas, especially the content of benzene and benzene series is effectively reduced through the alkali wash tower, the low-temperature plasma waste gas treatment device, the oil wash tower, the acid wash tower and the active carbon adsorption tower which are arranged in sequence.
(2) The controller automatically detects the component content of the gas, the gas which does not conform to the emission quality is discharged into the alkaline washing tower again to be processed again, the content of harmful gas in the exhaust gas is effectively reduced, the whole process can be automatically carried out, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a coking waste gas treatment system according to the present invention.
Detailed Description
Referring to fig. 1, the coking waste gas treatment system provided by the invention comprises a gas treatment unit, an emission unit and an explosion-proof online monitoring unit, wherein the gas treatment unit comprises an alkaline washing tower 1, a low-temperature plasma waste gas treatment device 2, an oil washing tower 3, an acid washing tower 4 and an active carbon adsorption tower 5 which are sequentially arranged;
the discharge unit comprises a buffer tank 6, a circulating pipe 13, a main fan 10 and an exhaust funnel 7, the buffer tank 6 is respectively communicated with the main fan 10 and the circulating pipe 13 through pipelines, a second valve 11 is arranged on the pipeline between the buffer tank 6 and the main fan 10, a third valve 12 is arranged on the pipeline between the buffer tank 6 and the circulating pipe 13, and the circulating pipe 13 is communicated with the alkaline tower 1;
the anti-explosion online monitoring unit comprises an anti-explosion cabin 8, the anti-explosion cabin 8 comprises a room body, an analytical instrument and a controller which are arranged in the room body, the active carbon adsorption tower 5 is respectively communicated with the analytical instrument and the buffer tank 6 through pipelines, and a first valve 9 is arranged on the pipeline between the active carbon adsorption tower 5 and the analytical instrument;
the analyzer is connected with a controller through signals, and the controller respectively controls a first valve 9, a second valve 11, a third valve 12, a main fan 10, an alkaline washing tower 1, a low-temperature plasma waste gas treatment device 2, an oil washing tower 3, an acid washing tower 4 and an active carbon adsorption tower 5.
The hydrogen sulfide in the gas is removed by the alkaline tower 1, a large amount of active oxygen free radicals and ozone which can react with volatile organic compounds in the gas are generated by the low-temperature plasma waste gas treatment device 2, so that the volatile organic compounds in the gas are oxidized or decomposed into carbon dioxide and water, the content of the volatile organic compounds in the gas such as benzene and benzene series is effectively reduced, the content of the volatile organic compounds in the gas such as benzene and benzene series is further reduced by the oil scrubber 3, the alkaline gas in the gas is absorbed by the acid scrubber 4, the pollutants in the gas are further absorbed by the active carbon adsorption tower 5, and the content of harmful gas in the discharged gas is reduced; the gas exhausted by the activated carbon adsorption tower 5 is detected through an analysis instrument in the explosion-proof cabin 8, when the gas meets the emission standard, the controller controls the second valve 11 to be opened, the third valve 12 to be closed, the main fan 10 works to exhaust the gas in the buffer tank 6 into the exhaust funnel 7 to be exhausted, when the gas does not meet the emission standard, the controller controls the second valve 11 to be closed, the third valve 12 to be opened, the gas is exhausted into the alkaline tower 1 again through the circulating pipe 13 to be treated, and the content of harmful components in the gas can be effectively reduced; moreover, the explosion-proof cabin 8 can protect the analytical instrument, the controller and the staff, so that explosion or injury to the staff caused by dust, harmful gas and flammable and explosive gas in the gas of a coking field is avoided, and the safety of field work is improved.
In the embodiment, the device further comprises a pretreatment unit, the pretreatment unit comprises a dust removal device 16, a heat exchanger 15 and an oil-gas separator 14 which are sequentially arranged, and the oil-gas separator 14 is communicated with the alkaline tower 1. The gas is dedusted, condensed and oil-liquid separated by a dedusting device 16, a heat exchanger 15 and an oil-gas separator 14 which are arranged in sequence to avoid the pollution of dust and waste oil to the air, and then the non-condensable gas is introduced into the alkaline tower 1 to remove hydrogen sulfide and ammonia in the gas.
In this embodiment, the dust collector further comprises a gas collecting system unit, the gas collecting system unit comprises an exhaust manifold 17, a collecting fan and one or more exhaust branch pipes, the exhaust branch pipes are all connected to the exhaust manifold 17 in parallel, the collecting fan is arranged on each exhaust branch pipe, and the exhaust manifold 17 is communicated with the dust collector 16. The gas generated in the coking process is collected to the exhaust manifold 17 through the exhaust branch pipe, and the gas is discharged into the dust removing device 16 for dust removal through the exhaust manifold 17.
In the embodiment, a first circulation branch pipe, a second circulation branch pipe, a third circulation branch pipe and a fourth circulation branch pipe are arranged on the circulation pipe 13, the first circulation branch pipe is communicated with the low-temperature plasma waste gas treatment device 2, a fourth valve is arranged on the first circulation branch pipe, the second circulation branch pipe is communicated with the oil washing tower 3, a fifth valve is arranged on the second circulation branch pipe, the third circulation branch pipe is communicated with the acid washing tower 4, a sixth valve is arranged on the third circulation branch pipe, the fourth circulation branch pipe is communicated with the activated carbon adsorption tower 5, and a seventh valve is arranged on the fourth circulation branch pipe.
The controller can convey the gas in the buffer tank 6 to a proper processing device through the detection result, so that the circulation flow is reduced, and the circulating gas is accurately processed.
In this embodiment, the explosion-proof cabin 8 further comprises a gas detection device, an alarm device and a ventilation device, wherein the gas detection device comprises a combustible gas detector, a toxic gas detector, an oxygen content analyzer and a smoke sensor, and the alarm device comprises a combustible gas alarm, a toxic gas alarm, an oxygen content alarm, a smoke alarm and a ventilation device;
the combustible gas detector, the toxic gas detector, the oxygen detector and the smoke sensor are respectively in signal connection with the controller, and the controller is respectively in control connection with the combustible gas detector, the toxic gas detector, the oxygen detector and the smoke sensor.
Through the gas or the smog of detection scene and to gas analysis, when the value that gas detector detected exceeded preset value, the controller control ventilation device takes a breath to the room body, avoids gas influence staff or instrument work, reduces on-the-spot staff's danger.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A coking waste gas treatment system is characterized by comprising a gas treatment unit, an emission unit and an explosion-proof online monitoring unit, wherein the gas treatment unit comprises an alkaline washing tower (1), a low-temperature plasma waste gas treatment device (2), an oil washing tower (3), an acid washing tower (4) and an active carbon adsorption tower (5) which are sequentially arranged;
the discharge unit comprises a buffer tank (6), a circulating pipe (13), a main fan (10) and an exhaust funnel (7), the buffer tank (6) is respectively communicated with the main fan (10) and the circulating pipe (13) through pipelines, a second valve (11) is arranged on the pipeline between the buffer tank (6) and the main fan (10), a third valve (12) is arranged on the pipeline between the buffer tank (6) and the circulating pipe (13), and the circulating pipe (13) is communicated with the alkaline tower (1);
the anti-explosion online monitoring unit comprises an anti-explosion cabin (8), the anti-explosion cabin (8) comprises a room body, an analytical instrument and a controller, the analytical instrument and the controller are arranged in the room body, the activated carbon adsorption tower (5) is respectively communicated with the analytical instrument and the buffer tank (6) through pipelines, and a first valve (9) is arranged on the pipeline between the activated carbon adsorption tower (5) and the analytical instrument;
the analyzer is connected with a controller through signals, and the controller respectively controls a first valve (9), a second valve (11), a third valve (12), a main fan (10), an alkaline tower (1), a low-temperature plasma waste gas treatment device (2), an oil washing tower (3), an acid washing tower (4) and an active carbon adsorption tower (5).
2. The coking waste gas treatment system according to claim 1, further comprising a pretreatment unit, wherein the pretreatment unit comprises a dust removal device (16), a heat exchanger (15) and an oil-gas separator (14) which are arranged in sequence, and the oil-gas separator (14) is communicated with the caustic tower (1).
3. The coking waste gas treatment system according to claim 2, further comprising a gas collection system unit, wherein the gas collection system unit comprises an exhaust manifold (17), a collection fan and one or more exhaust branch pipes, the exhaust branch pipes are all connected to the exhaust manifold (17) in parallel, the collection fan is arranged on each exhaust branch pipe, and the exhaust manifold (17) is communicated with the dust removal device (16).
4. The coking waste gas treatment system according to claim 1, characterized in that the circulating pipe (13) is provided with a first circulating branch pipe, a second circulating branch pipe, a third circulating branch pipe and a fourth circulating branch pipe, the first circulating branch pipe is communicated with the low-temperature plasma waste gas treatment device (2), the first circulating branch pipe is provided with a fourth valve, the second circulating branch pipe is communicated with the oil washing tower (3), the second circulating branch pipe is provided with a fifth valve, the third circulating branch pipe is communicated with the acid washing tower (4), the third circulating branch pipe is provided with a sixth valve, the fourth circulating branch pipe is communicated with the activated carbon adsorption tower (5), and the fourth circulating branch pipe is provided with a seventh valve.
5. The coking waste gas treatment system according to claim 1, characterized in that the explosion-proof cabin (8) further comprises a gas detection device, an alarm device and a ventilation device, wherein the gas detection device comprises a combustible gas detector, a toxic gas detector, an oxygen content analyzer and a smoke sensor, and the alarm device comprises a combustible gas alarm, a toxic gas alarm, an oxygen content alarm and a smoke alarm;
the combustible gas detector, the toxic gas detector, the oxygen detector and the smoke sensor are respectively in signal connection with the controller, and the controller is respectively in control connection with the combustible gas detector, the toxic gas detector, the oxygen detector, the smoke sensor and the ventilation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308886.5A CN111001266A (en) | 2019-12-18 | 2019-12-18 | Coking waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308886.5A CN111001266A (en) | 2019-12-18 | 2019-12-18 | Coking waste gas treatment system |
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| Publication Number | Publication Date |
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| CN111001266A true CN111001266A (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911308886.5A Pending CN111001266A (en) | 2019-12-18 | 2019-12-18 | Coking waste gas treatment system |
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| CN (1) | CN111001266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114752719A (en) * | 2022-04-26 | 2022-07-15 | 酒泉钢铁(集团)有限责任公司 | Pretreatment process based on hydrogen-rich metallurgical gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007061295A1 (en) * | 2005-11-28 | 2007-05-31 | Aerox B.V. | Method and apparatus for the treatment of a waste gas stream comprising contaminant molecules |
| CN203564930U (en) * | 2013-11-22 | 2014-04-30 | 苏州三博士环保科技有限公司 | Controllable circulating waste gas purification device |
| CN206435022U (en) * | 2017-01-19 | 2017-08-25 | 江苏恩菲环保装备有限公司 | Coking exhaust treatment system |
| CN108392953A (en) * | 2018-04-12 | 2018-08-14 | 宁波大学 | A kind of low-temperature plasma exhaust treatment system |
| CN209195087U (en) * | 2018-11-23 | 2019-08-02 | 南阳市一通防爆电气有限公司 | A kind of explosion-proof analyzer house |
| CN110302658A (en) * | 2019-07-03 | 2019-10-08 | 上海力皇环保工程有限公司 | It is a kind of for handling the devices and methods therefor of coalification coking organic exhaust gas |
| CN209549135U (en) * | 2019-01-11 | 2019-10-29 | 河南恩赛姆生物科技有限公司 | A kind of air cleaning facility for the cultivation of black soldier flies adult |
-
2019
- 2019-12-18 CN CN201911308886.5A patent/CN111001266A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007061295A1 (en) * | 2005-11-28 | 2007-05-31 | Aerox B.V. | Method and apparatus for the treatment of a waste gas stream comprising contaminant molecules |
| CN203564930U (en) * | 2013-11-22 | 2014-04-30 | 苏州三博士环保科技有限公司 | Controllable circulating waste gas purification device |
| CN206435022U (en) * | 2017-01-19 | 2017-08-25 | 江苏恩菲环保装备有限公司 | Coking exhaust treatment system |
| CN108392953A (en) * | 2018-04-12 | 2018-08-14 | 宁波大学 | A kind of low-temperature plasma exhaust treatment system |
| CN209195087U (en) * | 2018-11-23 | 2019-08-02 | 南阳市一通防爆电气有限公司 | A kind of explosion-proof analyzer house |
| CN209549135U (en) * | 2019-01-11 | 2019-10-29 | 河南恩赛姆生物科技有限公司 | A kind of air cleaning facility for the cultivation of black soldier flies adult |
| CN110302658A (en) * | 2019-07-03 | 2019-10-08 | 上海力皇环保工程有限公司 | It is a kind of for handling the devices and methods therefor of coalification coking organic exhaust gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114752719A (en) * | 2022-04-26 | 2022-07-15 | 酒泉钢铁(集团)有限责任公司 | Pretreatment process based on hydrogen-rich metallurgical gas |
| CN114752719B (en) * | 2022-04-26 | 2023-07-07 | 酒泉钢铁(集团)有限责任公司 | Pretreatment process based on hydrogen-rich metallurgical gas |
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Application publication date: 20200414 |