CN212039799U - Processing apparatus of tail gas that produces in sebacic acid production process - Google Patents
Processing apparatus of tail gas that produces in sebacic acid production process Download PDFInfo
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- CN212039799U CN212039799U CN201922247742.5U CN201922247742U CN212039799U CN 212039799 U CN212039799 U CN 212039799U CN 201922247742 U CN201922247742 U CN 201922247742U CN 212039799 U CN212039799 U CN 212039799U
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Abstract
The utility model relates to a tail gas treatment device produced in the production process of sebacic acid, which comprises a primary spray absorption tower communicated with a tail gas inlet pipe, wherein a gas outlet of the primary spray absorption tower is communicated with a primary condenser through a first draught fan, a gas outlet of the primary condenser is communicated with a final spray absorption tower through a second draught fan, and a gas outlet of the final spray absorption tower is communicated with an incinerator; the bottom of the primary spray absorption tower is stored with primary spray liquid, and a bottom water outlet of the primary spray absorption tower is communicated with a spray device of the primary spray absorption tower through a first water pump and a valve; the bottom of the final-stage spraying absorption tower is stored with final-stage spraying liquid, a bottom water outlet of the final-stage spraying absorption tower is communicated with a spraying device of the final-stage spraying absorption tower through a second water pump, a valve and a heat exchanger, and the heat exchanger is communicated with a refrigerating unit. The utility model discloses make tail gas discharge to reach standard, reduced the pollution of tail gas to the environment that produces in the sebacic acid production process, have the significance to sustainable development.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, especially, relate to a processing apparatus of tail gas that produces in sebacic acid production process.
Background
The definition of VOC in the environmental sense refers to an active class of volatile organic compounds, i.e. those that can cause harm.
At present, in the production process of sebacic acid, a large amount of VOC-containing steam is generated in the neutralization and acidification procedures, and the existing treatment mode is only simple collection and then discharge, so that the aims of removing VOC and peculiar smell cannot be fulfilled, the discharge exceeds the standard, and serious air pollution is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a processing apparatus for handling the tail gas that produces in the sebacic acid production process is provided to reach and make the standard emission of tail gas.
In order to solve the above problems, the utility model adopts the following technical proposal:
a treatment device for tail gas generated in a sebacic acid production process comprises a primary spray absorption tower communicated with a tail gas inlet pipe, wherein a gas outlet of the primary spray absorption tower is communicated with a primary condenser through a first induced draft fan, a gas outlet of the primary condenser is communicated with a final spray absorption tower through a second induced draft fan, and a gas outlet of the final spray absorption tower is communicated with an incinerator;
the bottom of the primary spray absorption tower is stored with primary spray liquid, and a water outlet at the bottom of the primary spray absorption tower is communicated with a spray device of the primary spray absorption tower through a first water pump and a valve;
and a final stage spray liquid is stored at the bottom of the final stage spray absorption tower, a bottom water outlet of the final stage spray absorption tower is communicated with a spray device of the final stage spray absorption tower through a second water pump, a valve and a heat exchanger, and the heat exchanger is communicated with a refrigerating unit.
As a further improvement of the utility model, a primary spray liquid inlet is arranged at the middle lower part of the primary spray absorption tower, and the primary spray liquid inlet is communicated with a primary spray liquid storage tank through a third water pump and a valve; the first water pump is also communicated with a primary spray liquid recovery tank through a valve.
As a further improvement of the utility model, a final stage spraying liquid inlet is arranged at the middle lower part of the final stage spraying absorption tower, and the final stage spraying liquid inlet is communicated with a final stage spraying liquid storage tank through a fourth water pump and a valve; the second water pump is also communicated with a final stage spray liquid recovery tank through a valve.
As a further improvement, the gas outlet intercommunication of one-level condenser has the second grade condenser, the one-level condenser passes through the second grade condenser with the second draught fan with the final stage sprays the absorption tower intercommunication.
As a further improvement of the utility model, the primary spray liquid is alkaline water with the pH value of 8-10.
As a further improvement of the utility model, the final stage spray liquid is glycerol water.
As a further improvement of the utility model, the content of the glycerol in the glycerol water is 5 to 10 percent.
As a further improvement of the utility model, the incinerator is an RTO incinerator.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the utility model discloses simple structure, through elementary spraying alkaline water for the absorption tower acid in to tail gas carry on the neutralization, cool down tail gas through one-level condenser and second grade condenser, cool down to glycerine water through heat exchanger and refrigerator group, spray the VOC in the absorption tower with cold glycerine water dissolution tail gas in the final stage, burn through burning furnace at last, make tail gas discharge to reach standard, the tail gas that has reduced to produce in the sebacic acid production process is to the pollution of environment, have important meaning to sustainable development.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the primary spray absorption tower of the present invention;
fig. 3 is a schematic structural view of the final stage spray absorption tower and the freezing part of the present invention.
Wherein: 1. the system comprises a tail gas inlet pipe, 2, a primary spray absorption tower, 3, a first induced draft fan, 4, a primary condenser, 5, a second induced draft fan, 6, a final spray absorption tower, 7, an incinerator, 8, a first water pump, 9, a second water pump, 10, a heat exchanger, 11, a refrigerating unit, 12, a primary spray liquid inlet, 13, a third water pump, 14, a primary spray liquid storage tank, 15, a primary spray liquid recovery tank, 16, a final spray liquid inlet, 17, a fourth water pump, 18, a final spray liquid storage tank, 19, a final spray liquid recovery tank, 20 and a secondary condenser.
Detailed Description
To make the objects, aspects and advantages of the present invention clearer and more fully described below with reference to the following detailed description, it is to be understood that the terms "center", "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the drawings, and are used merely for convenience of describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Examples
As shown in fig. 1, a device for treating tail gas generated in a sebacic acid production process includes a primary spray absorption tower 2 communicated with a tail gas inlet pipe 1, wherein the tail gas inlet pipe 1 is used for conveying the tail gas into the primary spray absorption tower 2, and the primary spray absorption tower 2 is used for performing primary spray absorption on the tail gas to primarily absorb solid particles in the tail gas; the gas outlet of the primary spray absorption tower 2 is communicated with a primary condenser 4 through a first induced draft fan 3, the first induced draft fan 3 is used for providing power, so that tail gas can smoothly enter the primary spray absorption tower 2 from the tail gas inlet pipe 1 and then enter the primary condenser 4, and the primary condenser 4 is used for carrying out primary condensation on the tail gas so as to reduce the temperature of the tail gas; the gas outlet of the first-stage condenser 4 is communicated with a final-stage spray absorption tower 6 through a second induced draft fan 5, the second induced draft fan 5 is used for providing power, so that tail gas enters the second induced draft fan 5 from the first-stage condenser 4 and then enters the final-stage spray absorption tower 6, and the final-stage spray absorption tower 6 is used for carrying out secondary spray absorption on the tail gas; and the gas outlet of the final-stage spraying absorption tower 6 is communicated with an incinerator 7, the incinerator 7 is an RTO incinerator, and the incinerator 7 is used for incinerating and treating tail gas so that the tail gas is discharged up to the standard.
As shown in fig. 2, a primary spray liquid is stored at the bottom of the primary spray absorption tower 2, the primary spray liquid is alkaline water with a pH value of 9, and the acidity of the tail gas is neutralized by the alkaline primary spray liquid; the bottom water outlet of the primary spray absorption tower 2 is communicated with the spray device of the primary spray absorption tower 2 through a first water pump 8 and a valve, the first water pump 8 is used for providing power, and primary spray liquid at the bottom of the primary spray absorption tower 2 is pumped to the spray device of the primary spray absorption tower 2 so as to recycle the primary spray liquid to neutralize tail gas.
As shown in fig. 3, the bottom of the final stage spray absorption tower 6 stores a final stage spray liquid, the final stage spray liquid is glycerol water, the content of glycerol in the glycerol water is 8.5%, and VOC in the tail gas is dissolved by the final stage spray liquid according to the principle of similar phase dissolution; a water outlet at the bottom of the final-stage spray absorption tower 6 is communicated with a spray device of the final-stage spray absorption tower 6 through a second water pump 9, a valve and a heat exchanger 10, and the heat exchanger 10 is communicated with a refrigerating unit 11; the second water pump 9 is used for providing power, and extracting the final stage spray liquid at the bottom of the final stage spray absorption tower 6 to a spray device of the final stage spray absorption tower 6 so as to recycle the final stage spray liquid to neutralize the tail gas, and the heat exchanger 10 and the refrigerating unit 11 are used for cooling the final stage spray liquid so as to prevent the final stage spray liquid from being too high in temperature due to the influence of the temperature of the tail gas.
As shown in fig. 2, a primary spray liquid inlet 12 is arranged at the middle lower part of the primary spray absorption tower 2, and the primary spray liquid inlet 12 is communicated with a primary spray liquid storage tank 14 through a third water pump 13 and a valve; the first water pump 8 is also communicated with a primary spray liquid recovery tank 15 through a valve, primary spray liquid in the primary spray absorption tower 2 is pumped into the primary spray liquid recovery tank 15 through the first water pump 8, and primary spray liquid in the primary spray liquid storage tank 14 is pumped into the primary spray absorption tower 2 through the third water pump 13, so that the primary spray liquid can be replaced, and the situation that the neutralization performance is too poor due to the fact that the primary spray liquid is used for too many times in a circulating mode is avoided.
As shown in fig. 3, a final stage spray liquid inlet 16 is arranged at the middle lower part of the final stage spray absorption tower 6, and the final stage spray liquid inlet 16 is communicated with a final stage spray liquid storage tank 18 through a fourth water pump 17 and a valve; the second water pump 9 is further communicated with a final stage spray liquid recovery tank 19 through a valve, the final stage spray liquid in the final stage spray absorption tower 6 is pumped into the final stage spray liquid recovery tank 19 by the second water pump 9, and the final stage spray liquid in the final stage spray liquid recovery tank 19 is pumped into the final stage spray absorption tower 6 by the fourth water pump 17, so that the final stage spray liquid can be replaced, and the final stage spray liquid is prevented from being too poor in solubility due to too much dissolved VOC.
As shown in fig. 1, the gas outlet of the first-level condenser 4 is communicated with a second-level condenser 20, the first-level condenser 4 is communicated with the final-level spray absorption tower 6 through the second-level condenser 20 and the second induced draft fan 5, and the second condensation is performed on the tail gas through the second-level condenser 20, so that the condensation effect is better, the temperature of the tail gas is further reduced, and the temperature of the tail gas is finally reduced from the original 80-100 ℃ to 40-50 ℃.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (7)
1. A processing apparatus of tail gas that produces in sebacic acid production process, its characterized in that: the tail gas recovery system comprises a primary spray absorption tower (2) communicated with a tail gas inlet pipe (1), wherein a gas outlet of the primary spray absorption tower (2) is communicated with a primary condenser (4) through a first induced draft fan (3), a gas outlet of the primary condenser (4) is communicated with a final spray absorption tower (6) through a second induced draft fan (5), and a gas outlet of the final spray absorption tower (6) is communicated with an incinerator (7);
a primary spray liquid is stored at the bottom of the primary spray absorption tower (2), and a water outlet at the bottom of the primary spray absorption tower (2) is communicated with a spray device of the primary spray absorption tower (2) through a first water pump (8) and a valve;
the bottom of the final-stage spraying absorption tower (6) is stored with final-stage spraying liquid, a bottom water outlet of the final-stage spraying absorption tower (6) is communicated with a spraying device of the final-stage spraying absorption tower (6) through a second water pump (9), a valve and a heat exchanger (10), and the heat exchanger (10) is communicated with a refrigerating unit (11).
2. The apparatus for treating tail gas generated in the production process of sebacic acid as claimed in claim 1, wherein: a primary spray liquid inlet (12) is formed in the middle lower part of the primary spray absorption tower (2), and the primary spray liquid inlet (12) is communicated with a primary spray liquid storage tank (14) through a third water pump (13) and a valve; the first water pump (8) is also communicated with a primary spray liquid recovery tank (15) through a valve.
3. The apparatus for treating tail gas generated in the production process of sebacic acid as claimed in claim 1, wherein: a final-stage spraying liquid inlet (16) is formed in the middle lower part of the final-stage spraying absorption tower (6), and the final-stage spraying liquid inlet (16) is communicated with a final-stage spraying liquid storage tank (18) through a fourth water pump (17) and a valve; the second water pump (9) is also communicated with a final stage spray liquid recovery tank (19) through a valve.
4. The apparatus for treating tail gas generated in the production process of sebacic acid as claimed in claim 1, wherein: the gas outlet intercommunication of one-level condenser (4) has second grade condenser (20), one-level condenser (4) pass through second grade condenser (20) with second draught fan (5) with final stage sprays absorption tower (6) intercommunication.
5. The apparatus for treating tail gas generated in the production process of sebacic acid as claimed in claim 1, wherein: the primary spray liquid is alkaline water with the pH value of 8-10.
6. The apparatus for treating tail gas generated in the production process of sebacic acid as claimed in claim 1, wherein: the final stage spray liquid is glycerol water.
7. The apparatus for treating tail gas generated in the production process of sebacic acid as claimed in claim 1, wherein: the incinerator (7) is an RTO incinerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922247742.5U CN212039799U (en) | 2019-12-16 | 2019-12-16 | Processing apparatus of tail gas that produces in sebacic acid production process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922247742.5U CN212039799U (en) | 2019-12-16 | 2019-12-16 | Processing apparatus of tail gas that produces in sebacic acid production process |
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| CN212039799U true CN212039799U (en) | 2020-12-01 |
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| CN201922247742.5U Active CN212039799U (en) | 2019-12-16 | 2019-12-16 | Processing apparatus of tail gas that produces in sebacic acid production process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007728A (en) * | 2021-03-11 | 2021-06-22 | 机械工业第九设计研究院有限公司 | Anti-freezing control scheme for RTO inlet valve in severe cold area |
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2019
- 2019-12-16 CN CN201922247742.5U patent/CN212039799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007728A (en) * | 2021-03-11 | 2021-06-22 | 机械工业第九设计研究院有限公司 | Anti-freezing control scheme for RTO inlet valve in severe cold area |
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