CN213433606U - Coke and asphalt smoke tail gas treatment device - Google Patents
Coke and asphalt smoke tail gas treatment device Download PDFInfo
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- CN213433606U CN213433606U CN202022378775.6U CN202022378775U CN213433606U CN 213433606 U CN213433606 U CN 213433606U CN 202022378775 U CN202022378775 U CN 202022378775U CN 213433606 U CN213433606 U CN 213433606U
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Abstract
The utility model relates to the technical field of coke and asphalt raw material production devices, in particular to a coke and asphalt smoke tail gas treatment device; the system comprises a primary spray condensing system, a secondary spray burning system and a tertiary spray discharging system, wherein the primary spray condensing system comprises a condenser, a primary spray tower and a water mist separation device which are sequentially arranged according to working procedures, the water mist separation device is connected with the secondary spray burning system through a main smoke pipe, and the main smoke pipe is connected with a flame arrester, a nitrogen gas inlet pipe, a pressure transmitter and an oxygen content detector; through multistage spraying system, water smoke tar can fully contact, lets in through spraying the washing from the spray column when the mist, utilizes the contact between gas and liquid, and convey the dust in the gas to the liquid in, then with gas and dust separation, gas process water smoke separator discharges the processing, and the mixture of pitch tar and water that the washing got off concentrates the collection back, and the sewage treatment station of sending is handled, reduces the dust temperature, prevents the gas explosion.
Description
Technical Field
The utility model belongs to the technical field of burnt and pitch raw materials apparatus for producing technique and specifically relates to a burnt and pitch cigarette tail gas processing apparatus.
Background
In the operation process of the RTO incinerator, asphalt tail gas and dust generated in the reaction kettle are directly discharged outwards, and air and ecological environment are seriously polluted. With the social progress and the enhancement of environmental awareness, RTO incinerator waste gas treatment equipment is researched for new energy cathode industry, and organic waste gas is incinerated and then is sprayed for treatment.
The existing purification treatment method is to carry out purification treatment on tail gas discharged by an incinerator by firstly burning and then matching with a water spraying mode, but even if the flue gas is sent to a spray tower, water drops are used for adsorbing the flue gas and dust particles for physical sedimentation, the purification effect cannot meet the requirements of safety and environmental protection, and the problem of environmental pollution caused by the emission of the burned tail gas to the outside cannot be effectively solved. Because the smoke dust particles are small, have certain weight after being sprayed by water and are mixed with air, the adsorption and capture capacity of water drops on the smoke dust is obviously insufficient.
And current RTO burns burning furnace control system: after the oxygen concentration of the equipment exceeds, no nitrogen gas supply linkage protection device exists, and dust particles in the smoke tube from the reaction kettle collide and rub with the smoke tube, so that the potential safety risk of gas explosion is easily caused.
Disclosure of Invention
The utility model aims at: overcome not enough among the prior art, provide a flue gas dust granule purification efficiency height, coke and asphalt smoke tail gas processing apparatus that purifying process factor of safety is high.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a coke and asphalt smoke tail gas treatment device, which comprises a primary spray condensing system, a secondary spray burning system and a tertiary spray discharging system,
the primary spray condensing system comprises a condenser, a primary spray tower and a water mist separation device which are sequentially arranged according to working procedures, the condenser, the primary spray tower and the water mist separation device are respectively connected through pipelines, the water mist separation device is connected with the secondary spray burning system through a main smoke pipe, and the main smoke pipe is connected with a flame arrester, a nitrogen gas inlet pipe, a pressure transmitter and an oxygen content detector;
the second grade sprays incineration system and tertiary discharge system that sprays and passes through the pipe connection, the tertiary discharge system that sprays includes the waste water treatment station.
Further, the bottom of the water mist separation device is connected with a mixture collector, and the mixture collector is connected with a wastewater treatment station through a sewage pipeline.
Furthermore, the oxygen content detector is connected with an audible and visual alarm.
Furthermore, a nitrogen gas supplementing valve is connected to the nitrogen gas inlet pipe, and a linkage device is arranged between the oxygen content detector, the audible and visual alarm and the nitrogen gas supplementing valve.
Further, the second grade sprays system of burning includes that second grade spray column and RTO burn burning furnace, burn through the pipe connection between second grade spray column and the RTO burn burning furnace, RTO burns burning furnace and is connected with tertiary discharge system that sprays through the pipeline, the bottom of second grade spray column is passed through sewage conduit and is connected with the waste water treatment station.
Furthermore, the main smoke pipe is connected with the secondary spraying incineration system through a waste gas mixing pipe, and a waste gas mixing device is connected to the waste gas mixing pipe.
Furthermore, a pipeline between the secondary spray tower and the RTO incinerator is connected with a fresh air pipeline.
Further, tertiary discharge system that sprays still includes tertiary spray column, chimney, tertiary spray column passes through the pipeline and is connected with the chimney, the spray column bottom is connected with the waste water treatment station through sewage pipe.
Further, still be connected with the waste water well between sewer line and the waste water treatment station, be connected through the sewer line between waste water well and the waste water treatment station.
Furthermore, a plurality of primary spraying systems are arranged in the treatment device, and the number of the primary spraying systems is consistent with that of the coke and asphalt reaction kettles.
Adopt the technical scheme of the utility model's beneficial effect is:
1. through multistage spraying system, water smoke tar can fully contact, lets in from the spray column when the mist and sprays the washing, utilizes the contact between gas and liquid, and convey the dust in the gas to the liquid in, then with gas and dust separation, gas discharges the processing through water smoke separator, and the mixture of the pitch tar that the washing got off and water is concentrated and is collected the back, and the sewage treatment station that sends is handled, has improved treatment effeciency.
2. Secondly, reduced the dust temperature, made it can not reach the ignition point, prevented the gas explosion, its technical principle is: the tail gas of the reaction kettle is sprayed and pretreated before entering the RTO incinerator, so that the dust temperature is reduced.
3. The dust is rapidly settled in the tar tank in the whole smoke tail gas treatment process, the dust cannot be pumped to a smoke pipe by negative pressure, and the potential safety and environmental protection hazards of dust combustion explosion and gas explosion are eliminated.
4. The tail gas of the whole reaction kettle is sprayed and pretreated before entering the RTO incinerator, part of dust in the flue gas is filtered and then incinerated, and the blockage of an original RTO filter screen is reduced, so that the dust and the flue gas are thoroughly separated; combustible organic compounds in the flue gas of the reaction kettle are complex, through sampling and detecting the flue gas of the reaction kettle (Fenni test company), the concentration of VOCs is 629 mg/m, the discharge rate is 0.33kg/h, the combustible waste gas can be completely used as fuel, and the consumption cost of natural gas is reduced; the discharge temperature of the RTO incinerator is too high, the maximum discharge temperature is 180 ℃, the waste heat can be completely recovered, and the consumption of natural gas is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the coke and asphalt smoke tail gas treatment device of the present invention.
Fig. 2 is a partially enlarged schematic view of fig. 1.
In the figure: 1. a secondary spray tower; 2. an RTO incinerator; 3. a third stage spray tower; 4. a chimney; 5. a wastewater well; 6. a wastewater treatment station; 7. a sewage conduit; 8. a pressure transmitter and an oxygen content detector; 9. a nitrogen inlet pipe; 10. a tap water inlet; 11. cooling the kettle; 12. a reaction kettle; 13. a condenser; 14. a first stage spray tower; 15. an exhaust gas mixing device; 16. a fresh air duct; 17. a water mist separator; 18. a flame arrestor; 19. a mixture collector.
Detailed Description
The coke and asphalt smoke tail gas treatment device of the present invention will be further explained with reference to the detailed description and the drawings.
Please refer to fig. 1, the utility model provides a burnt and pitch cigarette tail gas processing apparatus, including the one-level condensation system that sprays, the second grade sprays system of burning and tertiary discharge system that sprays, adopt through multistage spraying system, water smoke tar can fully contact, let in from the spray column when the mist and spray the washing, utilize the contact between gas and liquid, and convey the dust in the gas in the liquid, then with gas and dust separation, gas discharges the processing through water smoke separator 17, the mixture of the pitch tar that the washing got off and water is concentrated and is collected the back, send sewage treatment station to handle, the treatment effeciency has been improved. Secondly, the temperature of the dust is reduced, so that the dust cannot reach the ignition point, and the gas explosion is prevented.
Referring to fig. 1 and 2, the utility model provides a coke and pitch flue gas treatment device, including a plurality of first-level spray condensing systems, second-level spray incineration system and tertiary spray discharge system, every first-level spray condensing system includes condenser 13, first-level spray tower 14 and water smoke separator 17 that set gradually according to the process, respectively through the pipe connection between condenser 13, first-level spray tower 14 and the water smoke separator 17, water smoke separator 17 is connected with second-level spray incineration system through main tobacco pipe, be connected with back-fire relief device 18 on the main tobacco pipe, nitrogen gas intake pipe 9, pressure transmitter and oxygen content detector 8, the oxygen content detector is connected with audible-visual annunciator; the second grade sprays system of burning and tertiary spraying discharge system and passes through the pipe connection, and the second grade sprays the system of burning and includes that second grade spray column 1 and RTO burn burning furnace 2, and second grade spray column 1 and RTO burn burning furnace 2 between through the pipe connection, and RTO burns burning furnace 2 and is connected through pipeline and tertiary spraying discharge system, and sewage pipe 7 and wastewater treatment station 6 are passed through to second grade spray column 1's bottom and are connected, and tertiary spraying discharge system includes tertiary spray column 3, chimney 4 and wastewater treatment station 6, tertiary spray column 3 passes through the pipeline and is connected with chimney 4, the spray column bottom is connected with wastewater treatment station 6 through sewage pipe 7.
The working principle is as follows: coke powder and asphalt raw materials are heated in a reaction kettle 12, the coke powder and asphalt raw materials are directly discharged into a cooling kettle 11 for cooling treatment after heating, cooling water of the cooling kettle 11 is supplied by tap water, the tap water enters from a tap water inlet 10, flue gas generated by heating the coke powder and the asphalt is condensed by a condenser 13, the flue gas passes through a first-level spray tower 14 to adsorb dust, the flue gas is separated by a water mist separation device 17, washed asphalt tar and water are concentrated, the flue gas which is not collected enters a main flue pipe, nitrogen protective gas is introduced into the main flue pipe through a nitrogen gas inlet pipe 9, a flame arrester 18, a pressure transmitter and an oxygen content detector 8 are arranged in the main flue pipe, the oxygen content detector detects the oxygen content in the main flue pipe, an audible and visual alarm responds to alarm when the oxygen content exceeds the standard, and therefore, the collision and friction between dust particles in the smoke pipe from the reaction kettle and the smoke pipe are, the potential safety risk of gas explosion is easily caused. The smoke tail gas in the pipeline enters a secondary spraying incineration system for spraying incineration, the incinerated gas is cooled by a tertiary spraying tower 3 and then enters a sewage treatment station for treatment through a sewage pipeline 7, and other unadsorbed tail gas is discharged through a chimney 4.
The tail gas treatment device in the utility model can simultaneously treat the smoke tail gas of a plurality of coke and asphalt reaction kettles, each reaction kettle is provided with a primary spraying system, a plurality of primary spraying systems are connected with the same main smoke pipe through a pipeline, and then are connected with a secondary spraying incineration system through a main smoke pipe, and then are connected with a tertiary spraying discharge system for discharging sewage and smoke tail gas, the main smoke pipe and the secondary spraying incineration system are connected through a waste gas mixing pipe, a waste gas mixing device 15 is connected on the waste gas mixing pipe, by adopting the structure, the waste gas treated by a plurality of primary spraying condensing systems can be collected in a centralized way and then enters the secondary spraying incineration system through the waste gas mixing device 15 for incineration, the concentration of each component in the mixed gas is uniform, the incineration efficiency is obviously improved, the treatment capacity of the device is obviously improved, the treatment capacity is reduced, the energy consumption of the waste gas mixing device 15 is structurally set, the waste gas mixing rate is improved, the concentration of each part of the mixed waste gas is uniform, and the treatment efficiency of the graded spraying incineration system is further improved.
Referring to fig. 1, the bottom of the water mist separation device 17 is connected with a mixture collector 19, the mixture collector 19 is connected with the wastewater treatment station 6 through the sewage pipeline 7, the mixture is separated through the water mist separation device 17, the washed asphalt tar and water mixture is collected to the collector in a centralized manner, and enters the wastewater treatment station through the sewage pipeline 7 for centralized treatment, and the device is reasonable in structural design, high in treatment efficiency and low in treatment cost, and can treat sewage uniformly.
In the embodiment, the nitrogen gas inlet pipe 9 is connected with a nitrogen gas supplementing valve, a linkage device is arranged between the oxygen content detector, the audible and visual alarm and the nitrogen gas supplementing valve, the main smoke pipe is provided with an oxygen content real-time monitoring system, when the oxygen content exceeds a set value, audible and visual alarm is initiated, and the nitrogen gas valve is automatically opened to fill nitrogen gas for protection, so that the production safety is further improved.
In order to further reduce the exhaust emission concentration, in the embodiment, a fresh air pipeline 16 is additionally arranged on the pipeline between the secondary spray tower 1 and the RTO incinerator 2, and the exhaust emission concentration after incineration can be further reduced by performing air supplement treatment through the fresh air pipeline 16.
Still be connected with waste water well 5 between sewer line 7 and the waste water treatment station 6, be connected through sewer line 7 between waste water well 5 and the waste water treatment station 6, adopt this structural setting, the waste water that comes not to handle can be stored earlier in waste water well 5, then handles in entering into waste water treatment station 6 again, and the waste water that comes not to handle is not reached in the waste water station, can store in waste water well 5, and structural design is more reasonable.
The dust is rapidly settled in the tar tank in the whole smoke tail gas treatment process, the dust cannot be pumped to a smoke pipe by negative pressure, and the potential safety and environmental protection hazards of dust combustion explosion and gas explosion are eliminated. The tail gas of the whole reaction kettle is sprayed and pretreated before entering the RTO incinerator 2, part of dust in the flue gas is filtered and then incinerated, the blockage of an original RTO filter screen is reduced, and the dust and the flue gas are thoroughly separated; combustible organic compounds in the flue gas of the reaction kettle are complex, through sampling and detecting the flue gas of the reaction kettle (Fenni test company), the concentration of VOCs is 629 mg/m, the discharge rate is 0.33kg/h, the combustible waste gas can be completely used as fuel, and the consumption cost of natural gas is reduced; the discharge temperature of the RTO incinerator 2 is too high, the maximum discharge temperature is 180 ℃, waste heat can be completely recovered, and the consumption of natural gas is reduced.
In conclusion, the utility model discloses a multistage spray system, water smoke tar can fully contact, lets in from the spray column when the mist through spraying the washing, utilizes the contact between gas and liquid, and convey the dust in the gas to liquid in, then with gas and dust separation, gas process water smoke separator 17 emission treatment, and the mixture of the pitch tar that washes off and water is concentrated and is collected the back, send the sewage treatment station to handle. Secondly, the temperature of the dust is reduced, so that the dust cannot reach the ignition point, and the gas explosion is prevented.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary experimental examples, but that it can be implemented in other specific forms without departing from the spirit and essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment contains only one independent claim, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a burnt and glance coal tail gas processing apparatus which characterized in that: comprises a primary spray condensing system, a secondary spray burning system and a tertiary spray discharging system,
the primary spray condensing system comprises a condenser, a primary spray tower and a water mist separation device which are sequentially arranged according to working procedures, the condenser, the primary spray tower and the water mist separation device are respectively connected through pipelines, the water mist separation device is connected with the secondary spray burning system through a main smoke pipe, and the main smoke pipe is connected with a flame arrester, a nitrogen gas inlet pipe, a pressure transmitter and an oxygen content detector;
the second grade sprays incineration system and tertiary discharge system that sprays and passes through the pipe connection, the tertiary discharge system that sprays includes the waste water treatment station.
2. The coke and asphalt fume tail gas treatment device according to claim 1, characterized in that: and the bottom of the water mist separation device is connected with a mixture collector, and the mixture collector is connected with a wastewater treatment station through a sewage pipeline.
3. The coke and asphalt fume tail gas treatment device according to claim 1, characterized in that: the oxygen content detector is connected with an audible and visual alarm.
4. The coke and asphalt fume tail gas treatment device according to claim 3, characterized in that: and a nitrogen gas supplementing valve is connected to the nitrogen gas inlet pipe, and a linkage device is arranged between the oxygen content detector, the audible and visual alarm and the nitrogen gas supplementing valve.
5. The coke and asphalt fume tail gas treatment device according to claim 1, characterized in that: the second grade sprays the incineration system and includes that second grade spray column and RTO burn burning furnace, burn burning furnace between through the pipe connection second grade spray column and RTO, RTO burns burning furnace and is connected with tertiary discharge system that sprays through the pipeline, sewage pipe and wastewater treatment station are passed through to the bottom of second grade spray column are connected.
6. The coke and asphalt fume tail gas treatment device according to claim 5, characterized in that: the main smoke pipe is connected with the secondary spraying incineration system through a waste gas mixing pipe, and a waste gas mixing device is connected to the waste gas mixing pipe.
7. The coke and asphalt fume tail gas treatment device according to claim 5, characterized in that: and a pipeline between the secondary spray tower and the RTO incinerator is connected with a fresh air pipeline.
8. The coke and asphalt fume tail gas treatment device according to claim 1, characterized in that: the three-level spray discharge system further comprises a three-level spray tower and a chimney, the three-level spray tower is connected with the chimney through a pipeline, and the bottom of the spray tower is connected with a wastewater treatment station through a sewage pipeline.
9. The coke and asphalt fume tail gas treatment device according to any one of claims 2, 5 and 8, characterized in that: still be connected with the waste water well between sewer line and the waste water treatment station, be connected through the sewer line between waste water well and the waste water treatment station.
10. The coke and asphalt fume tail gas treatment device according to claim 1, characterized in that: a plurality of primary spraying systems are arranged in the treatment device, and the number of the primary spraying systems is consistent with that of the coke and asphalt reaction kettles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022378775.6U CN213433606U (en) | 2020-10-22 | 2020-10-22 | Coke and asphalt smoke tail gas treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022378775.6U CN213433606U (en) | 2020-10-22 | 2020-10-22 | Coke and asphalt smoke tail gas treatment device |
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| CN213433606U true CN213433606U (en) | 2021-06-15 |
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| CN202022378775.6U Active CN213433606U (en) | 2020-10-22 | 2020-10-22 | Coke and asphalt smoke tail gas treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984699A (en) * | 2022-07-20 | 2022-09-02 | 辽宁信德新材料科技股份有限公司 | Asphalt tail gas oil removing device and process in production of negative electrode coating material |
-
2020
- 2020-10-22 CN CN202022378775.6U patent/CN213433606U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984699A (en) * | 2022-07-20 | 2022-09-02 | 辽宁信德新材料科技股份有限公司 | Asphalt tail gas oil removing device and process in production of negative electrode coating material |
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