CN211537214U - Pitch production line tail gas treatment equipment - Google Patents
Pitch production line tail gas treatment equipment Download PDFInfo
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- CN211537214U CN211537214U CN201922134414.4U CN201922134414U CN211537214U CN 211537214 U CN211537214 U CN 211537214U CN 201922134414 U CN201922134414 U CN 201922134414U CN 211537214 U CN211537214 U CN 211537214U
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- tail gas
- cleaning tower
- production line
- gas treatment
- raschig ring
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Abstract
An asphalt production line tail gas treatment device comprises a cleaning tower, wherein an exhaust pipe is arranged at the upper end of the cleaning tower, a liquid discharge pipe is arranged at the lower end of the cleaning tower, and an activated carbon layer, a demister and a Raschig ring packing layer are fixedly arranged in the cleaning tower from top to bottom in sequence; the cleaning tower is characterized in that a spray head is arranged between the demister and the raschig ring packing layer and communicated with a liquid inlet pipe, an L-shaped elbow is further arranged inside the cleaning tower and arranged below the raschig ring packing layer, one end of the elbow is vertically arranged downwards, and the other end of the elbow is horizontally arranged and communicated with an air inlet pipe. In a word, the utility model discloses can make alkali lye and pitch tail gas intensive mixing, improve pitch tail gas's treatment effect.
Description
Technical Field
The utility model relates to a pitch production technical field, concretely relates to pitch production line tail gas treatment equipment.
Background
At pitch in process of production, need heat the pitch raw materials, wherein can produce a large amount of waste flue gas in meeting, wherein contain multiple organic matter, including carbon ring hydrocarbon, cyclic hydrocarbon derivative and other compounds, there are many compositions all to human health harmful effect, can cause serious atmosphere pollution if directly discharging into the atmosphere, present pitch production line tail gas treatment equipment mainly adopts tail gas treatment caustic wash tower, even filter the tail gas with lye absorption cooperation active carbon, though current pitch production line tail gas treatment equipment has certain absorption treatment effect to pitch production line tail gas, lye and pitch mix inadequately, lead to the absorption effect unsatisfactory, tail gas treatment quality is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pitch production line tail gas treatment equipment, the technical problem that solve is: so that the alkali liquor and the asphalt tail gas are fully mixed, and the asphalt tail gas treatment effect is improved.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an asphalt production line tail gas treatment device comprises a cleaning tower, wherein an exhaust pipe is arranged at the upper end of the cleaning tower, a liquid discharge pipe is arranged at the lower end of the cleaning tower, and an activated carbon layer, a demister and a Raschig ring packing layer are fixedly arranged in the cleaning tower from top to bottom in sequence; the cleaning tower is characterized in that a spray head is arranged between the demister and the raschig ring packing layer and communicated with a liquid inlet pipe, an L-shaped elbow is further arranged inside the cleaning tower and arranged below the raschig ring packing layer, one end of the elbow is vertically arranged downwards, and the other end of the elbow is horizontally arranged and communicated with an air inlet pipe.
Preferably, the packing of the raschig ring packing layer is a ceramic raschig ring with the diameter of phi 76 mm.
Preferably, a cooling device is arranged on the air inlet pipe.
Preferably, the cooling device is a heat exchanger.
Preferably, the activated carbon layer is provided with two layers at intervals along the vertical direction.
Preferably, the bottom of the cleaning tower is provided with a liquid level meter, and a drain pipe is provided with a valve.
Compared with the prior art, the beneficial effects of the utility model are that: asphalt tail gas rises after vertical downward entering cleaning tower bottom through the elbow, can reduce the velocity of flow of tail gas by a wide margin, increase the reaction time of follow-up alkali lye and asphalt tail gas, make its mixture more abundant, absorb more thoroughly, the velocity of flow further slows down when tail gas rises through raschig ring packing layer after that, shower nozzle blowout alkali lye is attached to raschig ring packing layer and is formed the liquid film, can absorb the acid gas in the asphalt tail gas better, asphalt tail gas can carry out the secondary reaction with shower nozzle spun alkali lye when continuing to rise through the shower nozzle, improve the absorption effect of tail gas, asphalt tail gas passes through the defroster earlier and detach liquid wherein after that, further adsorb through the active carbon layer again, purify impurity wherein, asphalt tail gas after final treatment is discharged through the blast pipe. In a word, the utility model discloses can make alkali lye and pitch tail gas intensive mixing, improve pitch tail gas's treatment effect.
Drawings
Fig. 1 is a schematic view of the present invention.
In the figure: 1. the cleaning device comprises a cleaning tower, 2 parts of an active carbon layer, 3 parts of a demister, 4 parts of a spray head, 5 parts of a Raschig ring packing layer, 6 parts of an elbow, 7 parts of a liquid discharge pipe, 8 parts of a valve, 9 parts of an air inlet pipe, 10 parts of a cooling device, 11 parts of a liquid inlet pipe, 12 parts of an exhaust pipe.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Example (b): as shown in fig. 1, the utility model provides a tail gas treatment device for an asphalt production line, which comprises a cleaning tower 1, wherein an exhaust pipe 12 is arranged at the upper end of the cleaning tower 1, a liquid discharge pipe 7 is arranged at the lower end of the cleaning tower 1, and an activated carbon layer 2, a demister 3 and a raschig ring packing layer 5 are fixedly arranged in the cleaning tower 1 from top to bottom in sequence; be provided with shower nozzle 4 between defroster 3 and raschig ring packing layer 5, shower nozzle 4 intercommunication has feed liquor pipe 11, and the inside of purge column 1 still is provided with the elbow 6 of "L" type, and elbow 6 sets up the below at raschig ring packing layer 5, and the vertical setting down of one end of elbow 6, the other end level of elbow 6 sets up and communicates there is intake pipe 9.
Specifically, the packing of the raschig ring packing layer 5 is a ceramic raschig ring with the diameter of phi 76mm, the structure is simple, and the price is low.
Further, be provided with cooling device on the intake pipe 9, specifically, cooling device is heat exchanger 10, and heat exchanger can cool down the pitch tail gas in the intake pipe 9, also can absorb the heat in the pitch tail gas and carry out the reutilization.
Furthermore, two layers of the activated carbon layer 2 are arranged at intervals in the vertical direction, so that the adsorption and purification effects of the activated carbon layer 2 are improved.
Further, the bottom of cleaning tower 1 is provided with the level gauge (not drawn in the picture), be provided with valve 8 on the fluid-discharge tube 7, can keep a quantitative alkali liquor through 4 blowout alkali liquors of shower nozzle makes the bottom of cleaning tower 1, the vertical end opening that makes elbow 6 is located the alkali liquor of cleaning tower 1 bottom, dust in the alkali liquor to the pitch tail gas through cleaning tower 1 bottom, harmful gas and impurity carry out the primary filtration, the absorption effect of pitch tail gas has been improved, when the level gauge detects that 4 spun alkali liquors of shower nozzle store too much in the bottom of cleaning tower 1, can open valve 8 and partly discharge alkali liquor.
The utility model provides a pair of pitch production line tail gas treatment facility, in the in-service use process, at first pitch tail gas rises after elbow 6 vertically gets into purge tower 1 bottom downwards, can reduce the velocity of flow of pitch tail gas by a wide margin, and make pitch tail gas spread, increase the reaction time and the reaction area of follow-up alkali lye and pitch tail gas, make its mixture more abundant, absorb more thoroughly, then pitch tail gas further slows down the velocity of flow when rising through raschig ring packing layer 5, the alkali lye of shower nozzle 4 spun adheres to raschig ring packing layer 5 and forms the liquid film, increase the reaction area of alkali lye and pitch tail gas, can absorb the acid gas in the pitch tail gas better, pitch tail gas can carry out the secondary reaction with the alkali lye of shower nozzle 4 spun when continuing to rise through shower nozzle 4, improve the absorption effect of tail gas, then pitch tail gas removes liquid wherein through defroster 3 earlier, and impurities in the asphalt are further adsorbed and purified by the activated carbon layer 2, and finally, the treated asphalt tail gas is discharged through the exhaust pipe 12. In a word, the utility model discloses can make alkali lye and pitch tail gas intensive mixing, improve pitch tail gas's treatment effect.
The principle and the embodiment of the present invention have been explained by using specific examples, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention, it should be pointed out that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and these modifications and modifications also fall into the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides an asphalt production line tail gas treatment equipment which characterized in that: the cleaning device comprises a cleaning tower (1), wherein an exhaust pipe (12) is arranged at the upper end of the cleaning tower (1), a liquid discharge pipe (7) is arranged at the lower end of the cleaning tower (1), and an activated carbon layer (2), a demister (3) and a Raschig ring packing layer (5) are fixedly arranged in the cleaning tower (1) from top to bottom in sequence; be provided with shower nozzle (4) between defroster (3) and raschig ring packing layer (5), shower nozzle (4) intercommunication has feed liquor pipe (11), and the inside of purge column (1) still is provided with elbow (6) of "L" type, and elbow (6) set up in the below of raschig ring packing layer (5), and the vertical setting down of one end of elbow (6), the other end level setting of elbow (6) and intercommunication have intake pipe (9).
2. The asphalt production line tail gas treatment equipment according to claim 1, characterized in that: the packing of the raschig ring packing layer (5) is a ceramic raschig ring with the diameter phi of 76 mm.
3. The asphalt production line tail gas treatment equipment according to claim 1, characterized in that: and a cooling device is arranged on the air inlet pipe (9).
4. The asphalt production line tail gas treatment equipment according to claim 3, characterized in that: the cooling device is a heat exchanger (10).
5. The asphalt production line tail gas treatment equipment according to claim 1, characterized in that: the activated carbon layer (2) is arranged in two layers at intervals along the vertical direction.
6. The asphalt production line tail gas treatment equipment according to claim 1, characterized in that: the bottom of the cleaning tower (1) is provided with a liquid level meter, and a valve (8) is arranged on the liquid discharge pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134414.4U CN211537214U (en) | 2019-12-03 | 2019-12-03 | Pitch production line tail gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134414.4U CN211537214U (en) | 2019-12-03 | 2019-12-03 | Pitch production line tail gas treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211537214U true CN211537214U (en) | 2020-09-22 |
Family
ID=72504037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922134414.4U Active CN211537214U (en) | 2019-12-03 | 2019-12-03 | Pitch production line tail gas treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211537214U (en) |
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2019
- 2019-12-03 CN CN201922134414.4U patent/CN211537214U/en active Active
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