CN112174472A - Atmosphere protection device of pyrolysis desorption system - Google Patents
Atmosphere protection device of pyrolysis desorption system Download PDFInfo
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- CN112174472A CN112174472A CN202011210096.6A CN202011210096A CN112174472A CN 112174472 A CN112174472 A CN 112174472A CN 202011210096 A CN202011210096 A CN 202011210096A CN 112174472 A CN112174472 A CN 112174472A
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 277
- 238000003795 desorption Methods 0.000 title claims abstract description 147
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 135
- 239000001301 oxygen Substances 0.000 claims abstract description 87
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 87
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 81
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 41
- 239000007789 gas Substances 0.000 claims description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 33
- 239000003546 flue gas Substances 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000010802 sludge Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- -1 inflammable Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides an atmosphere protection device of a pyrolysis desorption system, which is applied to the technical field of oily sludge treatment equipment, wherein an oxygen content detection part (6) and a nitrogen supply part (7) are arranged on a pyrolysis furnace (1) of the pyrolysis desorption system atmosphere protection device, the oxygen content detection part (6) and the nitrogen supply part (7) are respectively connected with a control part (8), the oxygen content detection part (6) is arranged into a structure capable of feeding back a real-time oxygen concentration value in the pyrolysis desorption system pyrolysis furnace (1) to the control part (8) in real time, the atmosphere protection device of the pyrolysis desorption system can effectively ensure that the oxygen concentration in the pyrolysis furnace of the pyrolysis desorption system is always within a set oxygen concentration value range and is always lower than the safe operation concentration of the pyrolysis furnace, thereby effectively protecting the pyrolysis furnace of the pyrolysis desorption system, the working safety of the equipment is improved.
Description
Technical Field
The invention belongs to the technical field of oily sludge (oil sludge) treatment equipment, and particularly relates to an atmosphere protection device of a pyrolysis desorption system.
Background
In industrial production, the kinds of sludge treatment are quite various. While oil-containing sludges are an important class thereof. The oil-containing sludge needs to be subjected to oil-sludge separation. In the prior art, the oily sludge is calculated and respectively comprises liquid oily sludge (oil sludge), semi-solid oily sludge and solid oily sludge according to oil content, water content, solid content, material source and form. Aiming at the treatment of oily sludge, the prior art needs classification treatment and quite complicated process procedures, so that the whole treatment system has more equipment, complicated process procedures and obviously increased cost. The pyrolysis desorption gas treatment device of the oily sludge treatment system is important equipment, and the existing pyrolysis desorption gas treatment device has the potential safety hazard that the oxygen content is too high and exceeds the standard to cause explosion in a pyrolysis furnace.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a simple structure can effectively guarantee that the interior oxygen concentration of pyrolysis desorption system pyrolysis oven is in setting for oxygen concentration numerical value range all the time, and is less than pyrolysis oven safe operation concentration all the time to effectively protect pyrolysis desorption system pyrolysis oven, improve equipment work safety's pyrolysis desorption system atmosphere protection device.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to an atmosphere protection device of a pyrolysis desorption system, which comprises a pyrolysis furnace of the pyrolysis desorption system, wherein a high-temperature flue gas heating cavity is arranged on the pyrolysis furnace of the pyrolysis desorption system, the high-temperature flue gas heating cavity is communicated with a high-temperature flue gas supply pipeline, a pyrolysis furnace gas inlet and a pyrolysis furnace gas outlet are arranged on the pyrolysis furnace of the pyrolysis desorption system, an oxygen content detection part and a nitrogen supply part are arranged on the pyrolysis furnace of the pyrolysis desorption system, the oxygen content detection part and the nitrogen supply part are respectively connected with a control part, the oxygen content detection part is arranged in a structure capable of feeding back a real-time oxygen concentration value in the pyrolysis furnace of the pyrolysis desorption system to the control part in real time, and the control part is arranged in a structure capable of controlling the nitrogen supply part to inject nitrogen into the pyrolysis furnace of the pyrolysis desorption system when the real-time oxygen concentration value in the pyrolysis furnace of the pyrolysis desorption system is, when the real-time oxygen concentration numerical value in the pyrolysis desorption system pyrolysis furnace is lower than the low-order set oxygen concentration numerical value, the control part is set to be the structure capable of controlling the nitrogen supply part to stop injecting nitrogen into the pyrolysis desorption system pyrolysis furnace.
Pyrolysis desorption system atmosphere protection device's pyrolysis oven of pyrolysis desorption system include pyrolysis oven inlayer and pyrolysis oven skin, form high temperature flue gas heating cavity between pyrolysis oven inlayer and the pyrolysis oven skin, high temperature flue gas supply pipeline includes high temperature flue gas input pipeline and high temperature flue gas discharge pipeline.
Pyrolysis desorption system atmosphere protection device's pyrolysis oven gas entry on pyrolysis desorption system pyrolysis oven set up to treat the structure that pyrolysis desorption gas got into pyrolysis desorption system pyrolysis oven for can inputing, pyrolysis oven gas outlet sets up to the structure that can export pyrolysis desorption gas discharge pyrolysis desorption system pyrolysis oven.
And a gas purification part is arranged between the oxygen content detection part of the pyrolysis desorption system atmosphere protection device and the pyrolysis furnace of the pyrolysis desorption system.
The nitrogen gas supply part comprises a nitrogen making part and a nitrogen gas conveying pipeline, one end of the nitrogen gas conveying pipeline is communicated with the nitrogen making part, the other end of the nitrogen gas conveying pipeline is communicated with the pyrolysis furnace of the pyrolysis desorption system, and the nitrogen gas conveying pipeline is provided with an electronic valve which is connected with the control part.
The pyrolysis desorption gas treated by the pyrolysis furnace of the pyrolysis desorption system comprises water vapor, oil vapor, air, organic matters, acid gas and dust.
After the oxygen content detection part is set to be capable of feeding back real-time oxygen concentration numerical values in the pyrolysis desorption system pyrolysis furnace to the control part in real time, the control part is set to be capable of ensuring that the pyrolysis desorption system pyrolysis furnace is always in a micro-oxygen state meeting set standard concentration by controlling the nitrogen supply part.
The nitrogen making component of the nitrogen supply component adopts PSA pressure swing adsorption to make nitrogen, and the nitrogen making component is set into a structure capable of forming nitrogen after intercepting oxygen by sucked air when the control component controls the nitrogen supply component to ensure that the pyrolysis desorption system pyrolysis furnace is always in a micro-oxygen state meeting set standards.
Before pyrolysis desorption system pyrolysis oven start, the control unit sets up to control nitrogen gas supply unit and starts and sweep the replacement and reduce the structure of oxygen concentration to the air in the pipeline with pyrolysis desorption system pyrolysis oven intercommunication.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
according to the atmosphere protection device for the pyrolysis desorption system, the oxygen content detection part can be used for detecting the real-time oxygen concentration in the pyrolysis furnace of the pyrolysis desorption system in real time, and the nitrogen supply part can be used for supplying nitrogen into the pyrolysis furnace of the pyrolysis desorption system according to the requirement. And the oxygen content detecting part and the nitrogen gas supplying part establish a tubular beam by the control part. Like this, when the real-time oxygen concentration in the pyrolysis desorption system pyrolysis stove surpassed the oxygen concentration numerical value of setting for, the control part control nitrogen gas supply part starts, pours into nitrogen gas into the pyrolysis desorption system pyrolysis stove to dilute oxygen concentration. Therefore, the pyrolysis desorption system pyrolysis furnace is always in a micro-oxygen state, namely, the pyrolysis desorption system pyrolysis furnace is always in a safe and stable running state. The atmosphere protection device for the pyrolysis desorption system can effectively ensure that the oxygen concentration in the pyrolysis furnace of the pyrolysis desorption system is always within a set oxygen concentration numerical value range and is always lower than the safe operation concentration of the pyrolysis furnace, thereby effectively protecting the pyrolysis furnace of the pyrolysis desorption system and improving the working safety of equipment.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic structural diagram of an atmosphere protection device of a pyrolysis desorption system according to the present invention;
in the drawings, the reference numbers are respectively: 1. a pyrolysis desorption system pyrolysis furnace; 2. heating the cavity by high-temperature flue gas; 3. a high temperature flue gas supply line; 4. a pyrolysis furnace gas inlet; 5. a pyrolysis furnace gas outlet; 6. an oxygen content detection part; 7. a nitrogen gas supply part; 8. a control component; 9. an inner layer of the pyrolysis furnace; 10. an outer layer of the pyrolysis furnace; 11. a high-temperature flue gas input pipeline; 12. a high-temperature flue gas discharge pipeline; 13. a gas purification component; 14. a nitrogen producing component; 15. a nitrogen gas delivery line; 16. an electronic valve.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in the attached figure 1, the invention relates to an atmosphere protection device of a pyrolysis desorption system, which comprises a pyrolysis furnace 1 of the pyrolysis desorption system, wherein a high-temperature flue gas heating cavity 2 is arranged on the pyrolysis furnace 1 of the pyrolysis desorption system, the high-temperature flue gas heating cavity 2 is communicated with a high-temperature flue gas supply pipeline 3, a pyrolysis furnace gas inlet 4 and a pyrolysis furnace gas outlet 5 are arranged on the pyrolysis furnace 1 of the pyrolysis desorption system, an oxygen content detection part 6 and a nitrogen supply part 7 are arranged on the pyrolysis furnace 1 of the pyrolysis desorption system, the oxygen content detection part 6 and the nitrogen supply part 7 are respectively connected with a control part 8, the oxygen content detection part 6 is arranged in a structure capable of feeding back a real-time oxygen concentration value in the pyrolysis furnace 1 of the pyrolysis desorption system to the control part 8 in real time, and when the real-time oxygen concentration value in the pyrolysis furnace 1 of the pyrolysis desorption system is higher than a high-level set, control unit 8 sets up to the structure that can control nitrogen gas supply unit 7 and inject nitrogen gas into pyrolysis desorption system pyrolysis oven 1, and when the real-time oxygen concentration numerical value in pyrolysis desorption system pyrolysis oven 1 was less than the low level and sets for oxygen concentration numerical value, control unit 8 sets up to the structure that can control nitrogen gas supply unit 7 and stop injecting nitrogen gas into pyrolysis desorption system pyrolysis oven 1. With the above structure, the real-time oxygen concentration in the pyrolysis desorption system pyrolysis furnace 1 can be detected in real time by the oxygen content detection unit 6, and the nitrogen gas supply unit 7 can supply nitrogen gas into the pyrolysis desorption system pyrolysis furnace 1 as required. And the oxygen content detecting part 6 and the nitrogen gas supplying part 7 establish a tubular beam by the control part. Like this, when the real-time oxygen concentration in pyrolysis desorption system pyrolysis oven 1 exceeded the oxygen concentration numerical value of setting for, control unit control nitrogen gas supply unit 7 starts, injects nitrogen gas into pyrolysis desorption system pyrolysis oven 1 to dilute oxygen concentration. Like this for be in little oxygen state in the pyrolysis desorption system pyrolysis oven 1 all the time, pyrolysis desorption system pyrolysis oven 1 is in the state of safe, steady operation all the time promptly. The atmosphere protection device for the pyrolysis desorption system, disclosed by the invention, has a simple structure, and can effectively ensure that the oxygen concentration in the pyrolysis furnace of the pyrolysis desorption system is always within a set oxygen concentration numerical value range and is always lower than the safe operation concentration of the pyrolysis furnace, so that the pyrolysis furnace of the pyrolysis desorption system is effectively protected, and the working safety of equipment is improved.
Pyrolysis desorption system atmosphere protection device's pyrolysis oven 1 of pyrolysis desorption system includes pyrolysis oven inlayer 9 and pyrolysis oven skin 10, forms high temperature flue gas heating cavity 2 between pyrolysis oven inlayer 9 and the pyrolysis oven skin 10, high temperature flue gas supply pipeline 3 includes high temperature flue gas input pipeline 11 and high temperature flue gas discharge line 12. Above-mentioned structure, the high temperature flue gas that equipment produced in the existing equipment was taken to the high temperature flue gas, and high temperature flue gas input pipeline 11 is used for the high temperature input, the high temperature flue gas passes through high temperature flue gas heating cavity 2, with the gaseous heat transfer of pyrolysis desorption that passes through in the pyrolysis desorption system pyrolysis oven 1, pyrolysis desorption is heated, take place the pyrolysis, then, the flue gas of cooling after the heat transfer passes through high temperature flue gas discharge pipe way 12 and discharges, realize the reuse of the high temperature flue gas energy, need not set up heating equipment specially, thereby reduce energy consumption, and the cost is saved.
Pyrolysis desorption system atmosphere protection device's pyrolysis oven gas inlet 4 on pyrolysis desorption system pyrolysis oven 1 sets up to treating the structure that pyrolysis desorption gas got into pyrolysis desorption system pyrolysis oven 1 for can inputing, pyrolysis oven gas outlet 5 sets up to the structure that can export pyrolysis desorption gas discharge pyrolysis desorption system pyrolysis oven 1. Above-mentioned structure, the pyrolysis desorption gas that needs pyrolysis treatment gets into from pyrolysis oven gas inlet 4, carries out pyrolytic reaction in the pyrolysis oven, and then after handling, the pyrolysis desorption gas is discharged from pyrolysis oven gas outlet 5, realizes handling.
And a gas purification part 13 is arranged between the oxygen content detection part 6 of the pyrolysis desorption system atmosphere protection device and the pyrolysis furnace 1 of the pyrolysis desorption system. Above-mentioned structure, gaseous purification unit 13 is to the gaseous water, hydrocarbon and other organic matters of removing that need detect oxygen concentration after, reentrant oxygen content test unit 6's electrochemical analysis instrument carries out oxygen content concentration analysis, reachs real-time oxygen concentration numerical value, then feeds back numerical value to control unit, and the numerical value is accurate.
The nitrogen gas supply part 7 comprises a nitrogen making part 14 and a nitrogen gas conveying pipeline 15, one end of the nitrogen gas conveying pipeline 15 is communicated with the nitrogen making part 14, the other end of the nitrogen gas conveying pipeline 15 is communicated with the pyrolysis furnace 1 of the pyrolysis desorption system, an electronic valve 16 is arranged on the nitrogen gas conveying pipeline 15, and the electronic valve 16 is connected with the control part 8. Above-mentioned structure, nitrogen gas supply unit can adopt the nitrogen storage tank body to store nitrogen gas, then supplies pyrolysis desorption system pyrolysis oven 1, also can adopt nitrogen-making unit 14, and on-the-spot nitrogen-making, then supply pyrolysis desorption system pyrolysis oven 1, satisfies the demand.
The pyrolysis desorption gas treated by the pyrolysis desorption system pyrolysis furnace 1 comprises water vapor, oil vapor, air, organic matters, acid gas and dust. Oxygen content determine part 6 set up to can feed back the real-time oxygen concentration numerical value in the pyrolysis desorption system pyrolysis oven 1 to control part 8 in real time after, control part 8 sets up to be in the structure that satisfies the little oxygen state of setting for standard concentration all the time in guaranteeing pyrolysis desorption system pyrolysis oven 1 through control nitrogen gas supply unit 7. Above-mentioned structure, little oxygen state ensures the pyrolysis oven safe and reliable work, avoids because oxygen content is too high hidden danger such as explosion takes place, ensures the reliable operation of equipment, and the performance is good.
The nitrogen making component 14 of the nitrogen gas supply component 7 adopts PSA pressure swing adsorption to make nitrogen, and when the control component 8 ensures that the inside of the pyrolysis furnace 1 of the pyrolysis desorption system is always in a micro-oxygen state meeting the set standard through controlling the nitrogen gas supply component 7, the nitrogen making component 14 is set into a structure capable of forming nitrogen gas after intercepting oxygen gas by sucked air. According to the structure, the nitrogen-making component sucks air on site, and then nitrogen and oxygen are separated, so that nitrogen preparation is realized, and the requirement of sufficient supply is met.
Before pyrolysis desorption system pyrolysis oven 1 start, control unit 8 sets up to control nitrogen gas supply unit 7 and starts and sweep the replacement and reduce the structure of oxygen concentration to the air in the pipeline that communicates with pyrolysis desorption system pyrolysis oven 1. Above-mentioned structure to the pipeline that can produce the pyrolysis desorption system pyrolysis oven 1 intercommunication of gas such as inflammable, explosive, for guaranteeing safe start, before pyrolysis desorption system starts, sweeps the replacement, avoids the high problem of oxygen concentration.
According to the atmosphere protection device for the pyrolysis desorption system, the oxygen content detection part can be used for detecting the real-time oxygen concentration in the pyrolysis furnace of the pyrolysis desorption system in real time, and the nitrogen supply part can be used for supplying nitrogen into the pyrolysis furnace of the pyrolysis desorption system according to the requirement. And the oxygen content detecting part and the nitrogen gas supplying part establish a tubular beam by the control part. Like this, when the real-time oxygen concentration in the pyrolysis desorption system pyrolysis stove surpassed the oxygen concentration numerical value of setting for, the control part control nitrogen gas supply part starts, pours into nitrogen gas into the pyrolysis desorption system pyrolysis stove to dilute oxygen concentration. Therefore, the pyrolysis desorption system pyrolysis furnace is always in a micro-oxygen state, namely, the pyrolysis desorption system pyrolysis furnace is always in a safe and stable running state. The atmosphere protection device for the pyrolysis desorption system can effectively ensure that the oxygen concentration in the pyrolysis furnace of the pyrolysis desorption system is always within a set oxygen concentration numerical value range and is always lower than the safe operation concentration of the pyrolysis furnace, thereby effectively protecting the pyrolysis furnace of the pyrolysis desorption system and improving the working safety of equipment.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a pyrolysis desorption system atmosphere protection device which characterized in that: the atmosphere protection device of the pyrolysis desorption system comprises a pyrolysis desorption system pyrolysis furnace (1), a high-temperature flue gas heating cavity (2) is arranged on the pyrolysis desorption system pyrolysis furnace (1), the high-temperature flue gas heating cavity (2) is communicated with a high-temperature flue gas supply pipeline (3), a pyrolysis desorption system pyrolysis furnace (1) is provided with a pyrolysis furnace gas inlet (4) and a pyrolysis furnace gas outlet (5), the pyrolysis desorption system pyrolysis furnace (1) is provided with an oxygen content detection part (6) and a nitrogen supply part (7), the oxygen content detection part (6) and the nitrogen supply part (7) are respectively connected with a control part (8), the oxygen content detection part (6) is arranged into a structure capable of feeding back real-time oxygen concentration numerical values in the pyrolysis desorption system pyrolysis furnace (1) to the control part (8), and when the real-time oxygen concentration numerical values in the pyrolysis desorption system pyrolysis furnace (1) are higher than high-level set oxygen concentration numerical values, control unit (8) set up to the structure that can control nitrogen gas supply unit (7) and inject nitrogen gas into pyrolysis desorption system pyrolysis oven (1), and when the real-time oxygen concentration numerical value in pyrolysis desorption system pyrolysis oven (1) was less than the low level and sets for oxygen concentration numerical value, control unit (8) set up to the structure that can control nitrogen gas supply unit (7) and stop to inject nitrogen gas into pyrolysis desorption system pyrolysis oven (1).
2. The pyrolytic desorption system atmosphere protection device of claim 1, wherein: pyrolysis desorption system atmosphere protection device's pyrolysis oven (1) of pyrolysis desorption system include pyrolysis oven inlayer (9) and pyrolysis oven skin (10), form high temperature flue gas heating cavity (2) between pyrolysis oven inlayer (9) and pyrolysis oven skin (10), high temperature flue gas supply pipeline (3) include high temperature flue gas input pipeline (11) and high temperature flue gas discharge pipeline (12).
3. The pyrolytic desorption system atmosphere protection device of claim 1 or 2, wherein: pyrolysis desorption system atmosphere protection device's pyrolysis oven gas entry (4) on pyrolysis desorption system pyrolysis oven (1) set up to treat the structure that pyrolysis desorption gas got into pyrolysis desorption system pyrolysis oven (1) for can inputing, pyrolysis oven gas outlet (5) set up to the structure that can export pyrolysis desorption gas discharge pyrolysis desorption system pyrolysis oven (1).
4. The pyrolytic desorption system atmosphere protection device of claim 1 or 2, wherein: the gas purification device is characterized in that a gas purification part (13) is arranged between an oxygen content detection part (6) of the pyrolysis desorption system atmosphere protection device and the pyrolysis furnace (1) of the pyrolysis desorption system.
5. The pyrolytic desorption system atmosphere protection device of claim 1 or 2, wherein: the nitrogen supply part (7) comprises a nitrogen making part (14) and a nitrogen conveying pipeline (15), one end of the nitrogen conveying pipeline (15) is communicated with the nitrogen making part (14), the other end of the nitrogen conveying pipeline (15) is communicated with the pyrolysis furnace (1) of the pyrolysis desorption system, an electronic valve (16) is arranged on the nitrogen conveying pipeline (15), and the electronic valve (16) is connected with the control part (8).
6. The pyrolytic desorption system atmosphere protection device of claim 1 or 2, wherein: the pyrolysis desorption gas treated by the pyrolysis desorption system pyrolysis furnace (1) comprises water vapor, oil vapor, air, organic matters, acid gas and dust.
7. The pyrolytic desorption system atmosphere protection device of claim 1 or 2, wherein: after oxygen content testing part (6) set up to can feed back the real-time oxygen concentration numerical value in pyrolysis desorption system pyrolysis oven (1) to control unit (8) in real time, control unit (8) set up to be in the structure that satisfies the little oxygen state of setting for standard concentration all the time in guaranteeing pyrolysis desorption system pyrolysis oven (1) through control nitrogen gas supply unit (7).
8. The pyrolytic desorption system atmosphere protection device of claim 5, wherein: the nitrogen making component (14) of the nitrogen supply component (7) adopts PSA pressure swing adsorption to make nitrogen, and when the control component (8) ensures that the interior of the pyrolysis furnace (1) of the pyrolysis desorption system is always in a micro-oxygen state meeting set standards through controlling the nitrogen supply component (7), the nitrogen making component (14) is set into a structure capable of forming nitrogen after oxygen is trapped by sucked air.
9. The pyrolytic desorption system atmosphere protection device of claim 1 or 2, wherein: before pyrolysis desorption system pyrolysis oven (1) start, control unit (8) set up to control nitrogen gas supply unit (7) and start and sweep the replacement and reduce the structure of oxygen concentration to the air in the pipeline that communicates with pyrolysis desorption system pyrolysis oven (1).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117000729A (en) * | 2023-09-28 | 2023-11-07 | 珙县华洁危险废物治理有限责任公司成都分公司 | Method for preparing secondary fly ash from shale gas drilling oil sludge |
| CN117000729B (en) * | 2023-09-28 | 2023-12-12 | 珙县华洁危险废物治理有限责任公司成都分公司 | Method for preparing secondary fly ash from shale gas drilling oil sludge |
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