CN218435479U - Two-stage pyrolysis device of many subregion of pressure-fired heating - Google Patents
Two-stage pyrolysis device of many subregion of pressure-fired heating Download PDFInfo
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- CN218435479U CN218435479U CN202222282081.1U CN202222282081U CN218435479U CN 218435479 U CN218435479 U CN 218435479U CN 202222282081 U CN202222282081 U CN 202222282081U CN 218435479 U CN218435479 U CN 218435479U
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- pyrolysis
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- type pyrolysis
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 96
- 238000010438 heat treatment Methods 0.000 title abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 60
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 239000003546 flue gas Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 6
- 239000002360 explosive Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a two-stage pyrolysis device with micro-positive pressure multi-partition heating, which comprises a feeding bin, a star-shaped feeding valve, a weighing screw, a feeding air locking valve, a first-stage screw propulsion type pyrolysis reactor, a second-stage screw propulsion type pyrolysis reactor, a discharging air locking valve, an active carbon adsorption purifier, a tail gas cooler and a tail gas dust remover which are sequentially arranged along the process flow; the utility model discloses an adjust the rotational speed of one, second grade screw propulsion pyrolytic reaction ware, the reaction time of control material in reaction unit satisfies the reaction demand of different materials, can avoid the gaseous and oxygen mixture that the pyrolysis produced to influence equipment operation safety or influence the pyrolysis effect simultaneously.
Description
Technical Field
The utility model relates to a two-stage pyrolysis device, specific many subregion of pressure-fired atmosphere protection heat two-stage pyrolysis device that says so belongs to environmental remediation and pyrolysis technical field.
Background
Certain pollutants need to be kept in an oxygen control state in the pyrolysis treatment process so as to ensure that the pyrolysis reaction meets special requirements such as safety, effectiveness and the like. Such as oil sludge, etc.
The oil sludge is a large amount of oil sludge and oil sand generated in the oil extraction and gathering production processes of oil fields, when the oil content in the oil sludge is high, more inflammable and explosive gases are easily generated through pyrolysis reaction, and after external oxygen enters a reaction device and is mixed with the inflammable and explosive gases, an explosive risk is easily generated, so that necessary oxygen control measures need to be taken for a treatment device in the oil sludge treatment process to ensure safety.
The device is suitable for pyrolysis treatment of oil sludge and the like needing oxygen control reaction, the system sets the rotating speed of the first-stage and second-stage spiral propulsion type pyrolysis reactors through a PLC program to control the reaction time of materials in the device, the device is wholly in a micro-positive pressure state by adjusting the flow of protective gas and the flow of exhaust gas, the materials are subjected to pyrolysis reaction in an oxygen-free environment, and the special treatment requirements of certain materials are met. The safety of the equipment and operators is ensured by the interlocking control of the feeding and discharging air locking valve and the front and back cascade equipment of the device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide a safety, reliable, pyrolysis temperature and time are adjustable, pyrolysis reaction environment accuse oxygen, can handle the multi-type receive the two-stage pyrolysis device that receives the many subregion of well low temperature pressure-fired of pollution material.
In order to achieve the above purpose, the utility model discloses specific technical scheme as follows: the utility model provides a two-stage pyrolysis device of many subregion of pressure-fired which characterized in that: the device comprises a feeding bin (1), a star-shaped feeding valve (2), a weighing screw (3), a feeding air locking valve (4), a primary screw propulsion type pyrolysis reactor (6), a secondary screw propulsion type pyrolysis reactor (17), a discharging air locking valve (19), an activated carbon adsorption purifier (15), a tail gas cooler (14) and a tail gas dust remover (13) which are sequentially arranged along the process flow;
the star-shaped feeding valve (2) is arranged between the feeding bin (1) and the weighing screw (2); a feeding hole, a pyrolysis gas exhaust hole and a protective gas inlet machine secondary spiral propulsion type pyrolysis reactor (17) connecting hole are respectively formed in the primary spiral propulsion type pyrolysis reactor (6), and a feeding air locking valve (4) is arranged on the feeding hole of the weighing spiral (2) and the primary spiral propulsion type pyrolysis reactor (6); a primary spiral propulsion type pyrolysis reactor (6) connecting port, a pyrolysis gas exhaust port, a protective gas inlet and a discharge port are respectively arranged on the secondary spiral propulsion type pyrolysis reactor (17), and a discharge gas locking valve (19) is arranged at the discharge port of the secondary spiral propulsion type pyrolysis reactor (17); the primary spiral propelling type pyrolysis reactor (6) is wrapped by a primary pyrolysis furnace chamber (5), and the secondary spiral propelling type pyrolysis reactor (17) is wrapped by a secondary pyrolysis furnace chamber (18); temperature sensors (9) are arranged at the bottoms of the primary and secondary spiral propulsion type pyrolysis reactors, and pressure sensors (7) are arranged at one ends of the primary and secondary spiral propulsion type pyrolysis reactors; the protective gas inlets of the first-stage spiral push type pyrolysis reactor and the second-stage spiral push type pyrolysis reactor are connected with a nitrogen generator through an electric regulating valve (21); the primary and secondary pyrolysis furnace chambers are divided into two cavities, each cavity is independently connected with a set of hot blast stove (10), each cavity is provided with an independent flue gas outlet, and the flue gas outlets are connected with a flue gas fan (11); the exhaust ports of the primary and secondary spiral propulsion type pyrolysis reactors are connected with a tail gas dust remover (13), and the tail gas dust remover (13) is sequentially connected with a tail gas cooler (14), an activated carbon adsorption purifier (15) and a tail gas induced draft fan (20).
Furthermore, the primary spiral propelling type pyrolysis reactor (6) and the secondary spiral propelling type pyrolysis reactor (17) both adopt a hot blast stove (10) to provide heat for the reaction of the two-stage device.
Further, pressure sensor (7) are connected with tail gas draught fan (11) communication, and signal conditioning tail gas draught fan (11) converter through pressure sensor (7) controls tail gas fan rotational speed to adjust electrical control valve (21) aperture, thereby the inside protective gas flow of control entering reactor, with one, second grade spiral propulsion type pyrolysis reactor internal pressure control at the pressure-fired state, can guarantee under abundant protective gas keeps apart that the material pyrolyzes under the accuse oxygen condition.
Further, the pressure sensor (7) controls the pressure in the device to 50 to 200Pa.
Further, the temperature sensor (9) controls the reaction temperature in the primary and secondary spiral propulsion type pyrolysis reactors to be 200-600 DEG C
Furthermore, the feeding air-lock valve (4) and the discharging air-lock valve (19) provide a sealing function for the reaction device.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an adjust the rotational speed of one, second grade screw propulsion type pyrolysis reactor, the reaction time of control material in reaction unit satisfies the reaction demand of different materials. Simultaneously, the pressure sensor who installs on the device is monitoring the pressure condition in the device constantly, guarantees through the rotational speed of adjusting the tail gas draught fan and adjust nitrogen gas flow that the device is inside to be in the pressure-fired state, avoids the gas that the pyrolysis produced to mix with oxygen and influences equipment operation safety or influence the pyrolysis effect. The hot blast stove is adopted to provide required heat, the maximum heating temperature can reach 600 ℃, meanwhile, the heating furnace chamber adopts a segmented structure, and the segmented heating furnace chamber can control the heating temperature more accurately.
When materials are added into the feeding bin, the required feeding amount, reaction time and reaction temperature are set in the PLC system, and the system automatically controls the running speed and heating fire power of the reaction device according to the set feeding amount, time and temperature. The material enters the inside of the first-stage spiral propelling type pyrolysis reactor through the feeding air locking valve and is discharged through the second-stage spiral propelling type pyrolysis reactor and the discharging air locking valve, and the front and rear separating cavities of the first-stage pyrolysis furnace chamber and the second-stage pyrolysis furnace chamber are respectively connected with a set of hot blast stoves to provide heat for the reactors. The primary pyrolysis furnace chamber and the secondary pyrolysis furnace flue gas exhaust port are both connected with a flue gas induced draft fan and conveyed to a chimney through the flue gas induced draft fan to be exhausted. And gas generated by pyrolysis is sent into a hot blast stove for incineration and pyrolysis through a tail gas dust remover, a tail gas cooler, an activated carbon adsorption purifier and a tail gas induced draft fan, so that harmless emission of residual wastes is ensured.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings as follows:
the two-stage pyrolysis device of many subregion of pressure-fired heating that this embodiment provided, as shown in fig. 1, include along feeding storehouse (1) that process flow order arranged in proper order, star type feed valve (2), weighing spiral (3), feeding air-lock valve (4), one-level pyrolysis furnace chamber (5), one-level screw propulsion formula pyrolysis reactor (6), second grade pyrolysis furnace chamber (18), second grade screw propulsion formula pyrolysis reactor (17), ejection of compact air-lock valve (19), nitrogen making machine (8), hot-blast furnace (10), flue gas draught fan (11), chimney (12), temperature sensor (9), pressure sensor (7), tail gas dust remover (13), tail gas cooler (14), activated carbon adsorption purifier (15), tail gas draught fan (20), electric control valve (21) and electrical system (22) are constituteed. The material enters the inside of the primary spiral propelling type pyrolysis reactor (6) through the feeding air locking valve (4) and is discharged through the secondary spiral propelling type pyrolysis reactor (17) and the discharging air locking valve (19), and front and rear partition cavities of the primary pyrolysis furnace chamber (5) and the secondary pyrolysis furnace chamber (18) are respectively connected with a set of hot blast stove (10) to provide heat for the reactor. The flue gas exhaust ports of the primary pyrolysis furnace chamber (5) and the secondary pyrolysis furnace chamber (18) are connected with a flue gas induced draft fan (11), and are conveyed to a chimney (12) through the flue gas induced draft fan (11) to be exhausted. Gas generated by pyrolysis is dedusted by a tail gas deduster (13) and then is cooled by a tail gas cooler (14) to remove moisture, and residual waste gas is purified by an activated carbon adsorption purifier (15) and then is sent into a hot blast stove (10) by a tail gas induced draft fan (20) for incineration and pyrolysis, so that harmless emission of residual waste is ensured.
The whole treatment process sets the feeding amount, the heating temperature and the retention time through an electric control system (22). The firepower of the hot blast stove (10) is detected in real time by a temperature sensor (9) in the furnace chamber and fed back to the PLC system, and then the output power of the hot blast stove (10) is adjusted by a control program, so that the reaction temperature in the device is kept in a required temperature range. The rotating speed of the tail gas draught fan (20) is adjusted according to the internal pressure of the device fed back by the pressure sensor (7) by the tail gas draught fan (20), so that a certain negative pressure is generated at the gas outlet of the tail gas dust remover (13), and the pyrolysis gas in the device is ensured to flow to the tail gas dust remover (13) through the gas outlet. Meanwhile, the opening of the electric regulating valve is regulated, so that the air quantity entering the device is full of the inner cavity, and the internal pressure of the reaction device meets the set positive pressure requirement.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the claims and their equivalents.
Claims (4)
1. The utility model provides a two-stage pyrolysis device of many subregion of pressure-fired which characterized in that: the device comprises a feeding bin (1), a star-shaped feeding valve (2), a weighing screw (3), a feeding air-lock valve (4), a primary screw propulsion type pyrolysis reactor (6), a secondary screw propulsion type pyrolysis reactor (17), a discharging air-lock valve (19), an activated carbon adsorption purifier (15), a tail gas cooler (14) and a tail gas dust remover (13) which are sequentially arranged along the process flow;
the star-shaped feeding valve (2) is arranged between the feeding bin (1) and the weighing screw (3); a feeding hole, a pyrolysis gas exhaust hole, a protective gas inlet and a connecting hole of a secondary spiral propulsion type pyrolysis reactor (17) are respectively formed in the primary spiral propulsion type pyrolysis reactor (6), and a feeding air locking valve (4) is arranged on the feeding hole of the weighing spiral (3) and the feeding hole of the primary spiral propulsion type pyrolysis reactor (6); a primary spiral propulsion type pyrolysis reactor (6) connecting port, a pyrolysis gas exhaust port, a protective gas inlet and a discharge port are respectively arranged on the secondary spiral propulsion type pyrolysis reactor (17), and a discharge gas locking valve (19) is arranged at the discharge port of the secondary spiral propulsion type pyrolysis reactor (17); the primary spiral propelling type pyrolysis reactor (6) is wrapped by a primary pyrolysis furnace chamber (5), and the secondary spiral propelling type pyrolysis reactor (17) is wrapped by a secondary pyrolysis furnace chamber (18); temperature sensors (9) are arranged at the bottoms of the primary and secondary spiral propulsion type pyrolysis reactors, and pressure sensors (7) are arranged at one ends of the primary and secondary spiral propulsion type pyrolysis reactors; the protective gas inlets of the first-stage spiral push type pyrolysis reactor and the second-stage spiral push type pyrolysis reactor are connected with a nitrogen generator through an electric regulating valve (21); the primary and secondary pyrolysis furnace chambers are divided into two cavities, each cavity is independently connected with a set of hot blast stove (10), each cavity is provided with an independent flue gas outlet, and the flue gas outlets are connected with a flue gas fan (11); the exhaust ports of the first-stage and second-stage spiral propulsion type pyrolysis reactors are connected with a tail gas dust remover (13), and the tail gas dust remover (13) is sequentially connected with a tail gas cooler (14), an activated carbon adsorption purifier (15) and a tail gas induced draft fan (20).
2. The micro-positive pressure multi-zone heated two-stage pyrolysis apparatus of claim 1, wherein: pressure sensor (7) are connected with tail gas draught fan (20) communication, and signal conditioning tail gas draught fan (20) converter through pressure sensor (7) controls tail gas fan rotational speed to adjust electrical control valve (21) aperture, thereby the inside protective gas flow of control entering reactor, with one, second grade spiral propulsion pyrolysis reactor internal pressure control at the pressure-fired state, can guarantee the material pyrolysis under the accuse oxygen condition under abundant protective gas keeps apart.
3. The micro-positive pressure multi-zone heated two-stage pyrolysis apparatus of claim 1, wherein: the pressure sensor (7) controls the pressure in the device to be 50 to 200Pa.
4. A two-stage micropressure multi-zone heated pyrolysis apparatus according to claim 1, characterized in that: the temperature sensor (9) controls the reaction temperature in the primary and secondary spiral propulsion type pyrolysis reactors to be 200-600 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222282081.1U CN218435479U (en) | 2022-08-29 | 2022-08-29 | Two-stage pyrolysis device of many subregion of pressure-fired heating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222282081.1U CN218435479U (en) | 2022-08-29 | 2022-08-29 | Two-stage pyrolysis device of many subregion of pressure-fired heating |
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| Publication Number | Publication Date |
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| CN218435479U true CN218435479U (en) | 2023-02-03 |
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| CN202222282081.1U Expired - Fee Related CN218435479U (en) | 2022-08-29 | 2022-08-29 | Two-stage pyrolysis device of many subregion of pressure-fired heating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304231A (en) * | 2022-08-29 | 2022-11-08 | 南京中船绿洲环保有限公司 | Two-stage pyrolysis device for micro-positive pressure multi-partition heating |
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2022
- 2022-08-29 CN CN202222282081.1U patent/CN218435479U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304231A (en) * | 2022-08-29 | 2022-11-08 | 南京中船绿洲环保有限公司 | Two-stage pyrolysis device for micro-positive pressure multi-partition heating |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20230203 |