CN213725738U - Exhaust treatment device for phenol production - Google Patents
Exhaust treatment device for phenol production Download PDFInfo
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- CN213725738U CN213725738U CN202022144870.XU CN202022144870U CN213725738U CN 213725738 U CN213725738 U CN 213725738U CN 202022144870 U CN202022144870 U CN 202022144870U CN 213725738 U CN213725738 U CN 213725738U
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Abstract
The utility model provides a waste gas treatment device is used in phenol production, including the spraying tank that connects gradually, vapour and liquid separator and first adsorption tank, the spraying tank is equipped with the interlayer, is equipped with the alkali lye cavity in the interlayer, the interlayer is equipped with the shower head outward, the alkali lye cavity passes through the hose and is connected with the shower head, be equipped with the air inlet on the spraying tank, waste liquid mouth and steam outlet, vapour and liquid separator is equipped with steam inlet pipe, blast pipe and waste liquid pipe, steam outlet and steam inlet union coupling, pack activated carbon fiber adsorbent in the first adsorption tank, the blast pipe passes through the pipeline and is connected with first adsorption tank, be equipped with first gas outlet on the first adsorption tank. The utility model discloses an exhaust treatment device is used in phenol production has solved in the phenol production process, only relies on the mode of active carbon adsorption waste gas, has reduced phenol waste gas production's cost, and also can obtain up to standard gas after handling and discharge.
Description
Technical Field
The utility model relates to a waste gas treatment device especially relates to a waste gas treatment device is used in phenol production.
Background
Phenol can discharge waste gas in the air oxidation process in the production process, wherein, contains a large amount of organic matters in the waste gas, like benzene, toluene, ethylbenzene and other light hydrocarbon material, if partial waste gas directly discharges and can the polluted environment, need carry out exhaust-gas treatment, discharge gas up to standard at last. In the prior art, an activated carbon adsorption technology can be used, waste gas is directly adsorbed and treated, the activated carbon has the advantage of high removal rate, but the used activated carbon is high in market price, particularly, the activated carbon is used for producing phenol, the activated carbon is saturated, the activated carbon needs to be replaced periodically, the waste gas treatment cost is high, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides an exhaust treatment device is used in phenol production has solved in the phenol production process, only relies on the mode of active carbon adsorption waste gas, has reduced phenol production exhaust-gas treatment's cost, and also can obtain up to standard gas after handling and discharge.
In order to realize the above-mentioned purpose, the utility model discloses a waste gas treatment device is used in phenol production, including the spraying tank that connects gradually, vapour and liquid separator and first adsorption tank, the spraying tank is equipped with the interlayer, be equipped with the alkali lye cavity in the interlayer, the interlayer is equipped with the shower head outward, the alkali lye cavity passes through the hose and is connected with the shower head, be equipped with the air inlet on the spraying tank, waste liquid mouth and steam outlet, vapour and liquid separator is equipped with the admission pipe, blast pipe and waste liquid pipe, steam outlet and admission union coupling, pack activated carbon fiber adsorbent in the first adsorption tank, the blast pipe passes through the pipeline and is connected with first adsorption tank, be equipped with first gas outlet on the first adsorption tank.
Furthermore, the device also comprises a second adsorption tank, the second adsorption tank is filled with activated carbon fiber adsorbent, the exhaust pipe is connected with the second adsorption tank through a pipeline, and a second air outlet is arranged on the second adsorption tank.
Further, still include high-purity water entry, the high-purity water entry passes through the pipeline and is connected with first adsorption tank and second adsorption tank respectively, and first adsorption tank and second adsorption tank bottom still are equipped with the washing water export respectively.
Further, the pipeline that blast pipe and first adsorption tank and second adsorption tank are connected includes trunk line and two branch pipelines, all is equipped with the valve on trunk line and the branch pipeline.
Further, still include steam inlet, steam inlet is connected with first adsorption tank and second adsorption tank respectively, all is equipped with analytic gas vent on first adsorption tank and the second adsorption tank.
Furthermore, the spray header is arranged in the longitudinal direction.
Further, still include the waste liquid cavity, waste liquid mouth and waste liquid pipe all are connected with the waste liquid cavity.
Through the technical scheme, the beneficial effects of the utility model are that:
(1) in the waste gas treatment device of the utility model, an alkali liquor pretreatment step is arranged before the active carbon adsorption step, which can pretreat the waste gas first and then carry out the carbon adsorption step, thus reducing the replacement frequency of the active carbon and the treatment cost;
(2) the utility model is provided with a first adsorption tank and a second adsorption tank, wherein one of the two adsorption tanks can be selected for use, and when the filler needs to be replaced, the other adsorption tank can be replaced for use, and the continuous adsorption treatment of the waste gas is not influenced;
(3) in addition, a spraying tank and a gas-liquid separator are arranged before the activated carbon adsorption, the spraying tank can perform alkaline pretreatment on the waste gas, then the waste gas enters the gas-liquid separator to be discharged into the adsorption tank for activated carbon adsorption treatment, so that the waste gas is effectively treated, and the waste gas treatment is more thorough;
(4) furthermore, high-purity water entry and steam entry are all connected to first adsorption tank and second adsorption tank, can heat desorption regeneration with the activated carbon fiber adsorbent after adsorbing the waste gas to waste water after will washing flows out through the washing water export and retrieves.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of an exhaust gas treatment apparatus for phenol production according to the present invention.
Fig. 2 is a schematic structural diagram of the gas-liquid separator of the present invention.
Description of the reference numerals
1, spraying a tank;
11 a barrier layer;
12 an alkali liquor chamber;
13 a shower head;
14 an air inlet;
15 waste liquid port;
16 steam outlet;
2, a gas-liquid separator;
21 a steam inlet pipe;
22 an exhaust pipe;
23 a waste pipe;
31 a first adsorption tank;
311 a first air outlet;
32 a second adsorption tank;
322 second air outlet;
4, a high-purity water inlet;
5 a washing water outlet;
61 a main pipeline;
62, dividing the pipeline;
7, a valve.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
The first embodiment:
as shown in fig. 1, which is a schematic structural diagram of a waste gas treatment device for phenol production of the present invention, in this embodiment, the waste gas treatment device for phenol production is provided with a spraying tank 1, a gas-liquid separator 2 and a first adsorption tank 31, the spraying tank 1, the gas-liquid separator 2 and the first adsorption tank 31 are sequentially connected through a pipeline, the spraying tank 1 is provided with an interlayer 11, an alkali liquor chamber 12 is arranged in the interlayer 11, a spraying head 13 is arranged outside the interlayer 11, the spraying head 13 is arranged in a longitudinal direction, the alkali liquor chamber 12 is connected with the spraying head 13 through a hose, the spraying volume of the spraying head 13 can fully cover the space filled with gas in the spraying tank 1, the spraying tank 1 is provided with a gas inlet 14, a waste liquor port 15 and a steam outlet 16, waste gas to be treated in the phenol production process enters the inner space of the spraying tank 1 through the gas inlet 14, the spraying head 13 sprays alkaline liquid in the alkali liquor chamber 12, partial acidic material adsorption reaction in the waste gas is pretreated, the treated liquid flows out and is collected through a waste liquid port 15, and the pretreated gas enters the gas-liquid separator 2 through a gas outlet 16.
As shown in fig. 2, in this embodiment, the gas-liquid separator 2 is provided with a steam inlet pipe 21, an exhaust pipe 22 and a waste liquid pipe 23, waste steam discharged from the steam outlet 16 enters the inner cavity of the gas-liquid separator 2 through the steam inlet pipe 21, because the waste steam contains a large amount of moisture, liquid drops slide down due to the action of gravity, and flow out through the waste liquid pipe 23, and gas rises and is discharged through the exhaust pipe 22, please refer to fig. 1 continuously, after the gas-liquid separator 2 performs gas-liquid separation on the pretreated steam, the exhaust pipe 22 is connected with the first adsorption tank 31 through a pipeline, the first adsorption tank 31 is filled with an activated carbon fiber adsorbent, the first adsorption tank 31 is provided with a first air outlet 311, and the waste gas pretreated by the alkali liquor enters the first adsorption tank 31 to perform activated carbon adsorption treatment.
The embodiment is provided with the spraying tank 1 and the gas-liquid separator 2 before activated carbon adsorption, the spraying tank 1 can perform alkaline pretreatment on the waste gas, and then the waste gas after pretreatment is discharged into the adsorption tank through the gas-liquid separator 2 for activated carbon adsorption treatment, so that the waste gas is effectively treated, the waste gas treatment is more thorough, and the waste gas treatment cost is also reduced.
Second embodiment:
still be equipped with second adsorption tank 32 in this embodiment, activated carbon fiber adsorbent is filled in second adsorption tank 32, is equipped with second gas outlet 322 on the second adsorption tank 32, and in addition, the pipeline that blast pipe and first adsorption tank 31 and second adsorption tank 32 are connected is equipped with trunk line 61 and two branch pipes 62, all is equipped with valve 7 on trunk line 61 and the branch pipe 62.
After the activated carbon adsorption saturation appears in the prior art, new activated carbon needs to be filled for adsorption treatment, the workload is undoubtedly increased in the replacement process, the adsorption efficiency is reduced, and the normal production and use of phenol are not facilitated, in contrast, in the use process of the embodiment, the pretreated waste gas enters the main pipeline 61 through the gas-liquid separator 2, then the valve 7 on the branch pipe 62 at the first adsorption tank 31 is opened, the waste gas enters the first adsorption tank 31, after the adsorption treatment, the gas up to the standard is discharged into the air through the first air outlet 311, after the first adsorption tank 31 is in a saturated state, the valve on the branch pipe 62 at the position of the first adsorption tank 31 is closed, the valve on the branch pipe 62 at the position of the second adsorption tank 32 is opened, the adsorption treatment is carried out by using the second adsorption tank 32, the gas up to the standard is discharged into the air through the second air outlet 322, and so on the like, the first adsorption tank 31 and the second adsorption tank 32 are alternately used.
In the waste gas treatment device of the embodiment, the first adsorption tank 31 and the second adsorption tank 32 are arranged, one of the two adsorption tanks can be selected for use, and when the filler needs to be replaced, the other adsorption tank can be replaced for use, so that the continuous adsorption treatment of waste gas is not influenced, and the production efficiency of equipment is improved.
The third embodiment:
as shown in fig. 1, the exhaust gas treatment device of the present embodiment is further provided with a high purity water inlet 4, the high purity water inlet 4 is respectively connected to the first adsorption tank 31 and the second adsorption tank 32 through a pipeline, the bottoms of the first adsorption tank 31 and the second adsorption tank 32 are respectively provided with a washing water outlet 5, the exhaust gas treatment device of the present embodiment is further provided with a waste liquid chamber, and the waste liquid port 15 and the waste liquid pipe are both connected to the waste liquid chamber to recycle the waste liquid. In addition, in this embodiment, a steam inlet (not shown) is further provided, the steam inlet is connected to the first adsorption tank 31 and the second adsorption tank 32, and both the first adsorption tank 31 and the second adsorption tank 32 are provided with desorption gas discharge ports.
This embodiment is in the use, after first adsorption tank 31 adsorbs the saturation, change to using second adsorption tank 32 to adsorb and handle, let in first adsorption tank 31 with steam at steam inlet this moment, carry out high temperature treatment with saturated activated carbon fiber adsorbent, later high pure water entry 4 departments carry high-purity process water and cool down the washing, regenerate activated carbon fiber adsorbent desorption, and the waste liquid water after will washing flows out through washing water outlet 5, gets into waste liquid cavity recycle.
Through above-mentioned technical scheme, the exhaust treatment device of this embodiment, high pure water entry 4 and steam inlet are all connected to first adsorption tank 31 and second adsorption tank 32, can heat the desorption regeneration with the activated carbon fiber adsorbent after adsorbing waste gas to waste water after will washing flows out through washing water outlet 5 and retrieves.
It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a waste gas treatment device is used in phenol production, its characterized in that, including spray tank, vapour and liquid separator and the first absorption jar that connects gradually, the spray tank is equipped with the interlayer, be equipped with the alkali lye cavity in the interlayer, the interlayer is equipped with the shower head outward, the alkali lye cavity passes through the hose and is connected with the shower head, be equipped with air inlet, waste liquid mouth and steam outlet on the spray tank, vapour and liquid separator is equipped with admission pipe, blast pipe and waste liquid pipe, steam outlet and admission union coupling, pack activated carbon fiber adsorbent in the first absorption jar, the blast pipe passes through the pipeline and is connected with the first absorption jar, be equipped with first gas outlet on the first absorption jar.
2. The waste gas treatment device for phenol production according to claim 1, further comprising a second adsorption tank filled with an activated carbon fiber adsorbent, wherein the exhaust pipe is connected to the second adsorption tank through a pipeline, and a second gas outlet is provided on the second adsorption tank.
3. The exhaust gas treatment device for phenol production according to claim 2, further comprising a high purity water inlet connected to the first adsorption tank and the second adsorption tank through pipes, respectively, and washing water outlets provided at bottoms of the first adsorption tank and the second adsorption tank, respectively.
4. The exhaust gas treatment device for phenol production according to claim 2, wherein the pipe connecting the exhaust pipe to the first adsorption tank and the second adsorption tank includes a main pipe and two branch pipes, and valves are provided on the main pipe and the branch pipes.
5. The exhaust gas treatment device for phenol production according to claim 2, further comprising a steam inlet, wherein the steam inlet is connected to the first adsorption tank and the second adsorption tank, and the first adsorption tank and the second adsorption tank are provided with desorption gas discharge ports.
6. The exhaust gas treatment device for phenol production according to claim 1, wherein the shower head is provided in a longitudinal direction.
7. The exhaust gas treatment device for phenol production according to claim 1, further comprising a waste liquid chamber, wherein the waste liquid port and the waste liquid pipe are connected to the waste liquid chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022144870.XU CN213725738U (en) | 2020-09-27 | 2020-09-27 | Exhaust treatment device for phenol production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022144870.XU CN213725738U (en) | 2020-09-27 | 2020-09-27 | Exhaust treatment device for phenol production |
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| CN213725738U true CN213725738U (en) | 2021-07-20 |
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| CN202022144870.XU Active CN213725738U (en) | 2020-09-27 | 2020-09-27 | Exhaust treatment device for phenol production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228244A (en) * | 2022-07-07 | 2022-10-25 | 中国成达工程有限公司 | Tail gas treatment method in bisphenol A production process |
| CN117101631A (en) * | 2023-07-25 | 2023-11-24 | 广州市适然环境工程技术有限公司 | High-temperature steam activated carbon desorption regeneration device and method |
-
2020
- 2020-09-27 CN CN202022144870.XU patent/CN213725738U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228244A (en) * | 2022-07-07 | 2022-10-25 | 中国成达工程有限公司 | Tail gas treatment method in bisphenol A production process |
| CN117101631A (en) * | 2023-07-25 | 2023-11-24 | 广州市适然环境工程技术有限公司 | High-temperature steam activated carbon desorption regeneration device and method |
| CN117101631B (en) * | 2023-07-25 | 2024-02-13 | 广州市适然环境工程技术有限公司 | High-temperature steam activated carbon desorption regeneration device and method |
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