CN216726568U - High-efficient purification treatment system of phenol-containing waste gas - Google Patents
High-efficient purification treatment system of phenol-containing waste gas Download PDFInfo
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- CN216726568U CN216726568U CN202123314315.8U CN202123314315U CN216726568U CN 216726568 U CN216726568 U CN 216726568U CN 202123314315 U CN202123314315 U CN 202123314315U CN 216726568 U CN216726568 U CN 216726568U
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Abstract
The utility model discloses a high-efficiency purification treatment system for phenol-containing waste gas, which comprises: the air inlet of the emptying condenser is connected with an external pipeline; the air outlet of the emptying condenser is connected with the air inlet of the spray washing tower through a receiving tank, and the air outlet of the spray washing tower is connected with an active carbon adsorption device; the waste gas is adsorbed by an activated carbon adsorption device and then discharged by an emptying device; a first-stage spray absorption tower and a second-stage spray absorption tower which are connected are arranged in the spray washing tower, circulating water tanks are arranged at the lower parts of the first-stage spray absorption tower and the second-stage spray absorption tower, and a demisting section is arranged at the outlet of the second-stage spray absorption tower; the first stage spray absorption tower comprises an air inlet section, a flow equalizing section, a first stage packing absorption section and a first stage spray section which are connected in sequence; the second-stage spray absorption tower comprises a second-stage packing absorption section and a second-stage spray section which are sequentially connected. The utility model can realize more efficient treatment of the phenol-containing waste gas and avoid pollution to the environment.
Description
Technical Field
The utility model relates to the field of waste gas treatment, in particular to a high-efficiency purification treatment system for phenol-containing waste gas.
Background
Cardanol is obtained by distilling crude cardanol, a large amount of phenol-containing waste gas can be generated in the distillation process, and if the cardanol is directly discharged into the atmosphere, the environment can be polluted. Meanwhile, the phenol-containing waste gas can also cause harm to human bodies.
In the prior art, phenol-containing waste gas is usually treated by adopting an alkaline tower, and phenol in the waste gas is neutralized by alkaline solution through spraying of the alkaline solution, but the waste gas cannot be completely treated only through the action of the alkaline tower. Meanwhile, cardanol is different from phenols such as phenol and the like, is insoluble in water, and needs a higher-efficiency treatment system to perform standard treatment on cardanol.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a high-efficiency purification treatment system for phenol-containing waste gas.
In order to realize the purpose of the utility model, the adopted technical scheme is as follows:
a high-efficiency purification treatment system for phenol-containing waste gas comprises:
the emptying condenser is used for absorbing waste gas generated in the cardanol production, and an air inlet of the emptying condenser is connected with an external waste gas collecting pipeline in the cardanol production;
the air outlet of the emptying condenser is connected with the air inlet of the spray washing tower through a receiving tank,
the gas outlet of the spray washing tower is connected with an activated carbon adsorption device;
the waste gas is adsorbed by the activated carbon adsorption device and then discharged by an emptying device;
a first-stage spray absorption tower and a second-stage spray absorption tower which are connected are arranged in the spray washing tower, circulating water tanks are arranged at the lower parts of the first-stage spray absorption tower and the second-stage spray absorption tower, and a demisting section is arranged at the outlet of the second-stage spray absorption tower;
the first-stage spray absorption tower comprises an air inlet section, a flow equalizing section, a first-stage packing absorption section and a first-stage spray section which are connected in sequence;
the second-stage spray absorption tower comprises a second-stage packing absorption section and a second-stage spray section which are sequentially connected.
In a preferred embodiment of the utility model, the blow-down condenser is provided with a circulating return line and a circulating feed line.
In a preferred embodiment of the utility model, the first stage spray stage and the second stage spray stage have different nozzle densities and spray pressures.
In a preferred embodiment of the present invention, the evacuation device is a first evacuation fan and a second evacuation fan connected in parallel, and an exhaust stack connected to the first evacuation fan and the second evacuation fan.
In a preferred embodiment of the utility model, the outlet of the circulating water tank is connected with an absorption tower circulating device, and the absorption liquid is recycled through the absorption tower circulating device.
In a preferred embodiment of the present invention, the absorption tower circulation device comprises a first absorption tower circulation pump and a second absorption tower circulation pump which are connected in parallel.
In a preferred embodiment of the utility model, the water outlet pipeline of the absorption tower circulating device is connected with the water inlet of the sewage pool.
In a preferred embodiment of the utility model, the water outlet of the sewage pool is communicated with an external drainage pipeline through an anticorrosion self-priming device.
In a preferred embodiment of the present invention, the anticorrosive self-priming device comprises a first anticorrosive self-priming pump and a second anticorrosive self-priming pump which are connected in parallel.
The utility model has the beneficial effects that:
the utility model can realize more efficient treatment of the phenol-containing waste gas and avoid pollution to the environment.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the spray scrubber of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the utility model and not to limit the scope of the utility model. Moreover, in the following structures, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description. And are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation and, therefore, should not be taken to be limiting of the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The system for purifying and treating waste gas containing phenol as shown in fig. 1 comprises a vent condenser 100 for absorbing waste gas generated by cardanol production, wherein an air inlet of the vent condenser 100 is connected with an external waste gas generated by cardanol production collection pipeline 10. The flare condenser 100 is provided with a recycle return line 101 and a recycle feed line 102.
The outlet of the flare condenser 100 is connected to the inlet of the spray scrubber 300 via a receiving tank 200.
The flare condenser 100 is supplied with cooling water from a cooling tower. The boiling point of the cardanol is between 300 ℃ and 400 ℃ at normal temperature, so that the cardanol is easy to condense into liquid.
With particular reference to fig. 2, a first stage spray absorption tower 310 and a second stage spray absorption tower 320 are disposed in the spray scrubber 300, a circulation water tank 330 is disposed at the lower portion of the first stage spray absorption tower 310 and the second stage spray absorption tower 320, and a demisting section 340 is disposed at the outlet of the second stage spray absorption tower 320.
The first stage spray absorption tower 310 comprises an air inlet section 311, a flow equalizing section 312, a first stage packing absorption section 313 and a first stage spray section 314 which are connected in sequence.
The condensed exhaust gas enters the first stage spray absorption tower 310 of the spray scrubber 300, rapidly fills the space of the gas inlet section 311, and then uniformly rises to the first stage filler absorption section 313 through the flow equalizing section 312.
On the packing surface of the first stage packing absorption stage 313, the exhaust gas is effectively trapped and flows with the absorption liquid into the lower circulation tank 330.
The incompletely trapped gas continuously rises to enter the first-stage spraying section 314, and the absorption liquid in the first-stage spraying section 314 is sprayed out from uniformly distributed nozzles at a high speed to form countless fine droplets which are fully mixed and contacted with the mixed gas to continuously and effectively trap the gas.
Then the gas rises to a second-stage packing absorption section 321 in the second-stage spray absorption tower 320 and a second-stage spray section 322 to perform a similar interception process as the first stage in the second-stage spray absorption tower 320, and the second-stage packing absorption section 321 and the second-stage spray section 322 are connected in sequence. Wherein the first stage spray section 314 and the second stage spray section 322 have different nozzle densities and spray pressures and different trapped gas concentration ranges.
The uppermost part of the tower body is a demisting section 340, wherein absorption liquid fog drops contained in the gas are removed, and the treated gas enters the activated carbon adsorption device 400 from the upper end of the tower body.
The gas outlet of the spray washing tower 300 is connected with the activated carbon adsorption device 400, and the gas is exhausted through the emptying device 500 after being adsorbed by the activated carbon adsorption device 400.
The exhaust device 500 is a first exhaust fan 510 and a second exhaust fan 520 connected in parallel, and an exhaust stack 530 connected to the first exhaust fan 510 and the second exhaust fan 520.
The outlet of the circulating water tank 330 is connected with the absorption tower circulating device 600, and the absorption liquid is recycled through the absorption tower circulating device 600. The absorption tower circulation device 600 includes a first absorption tower circulation pump 610 and a second absorption tower circulation pump 620 connected in parallel.
The water outlet pipeline 601 of the absorption tower circulation device 600 is connected with the water inlet of the sewage tank 700, and the water outlet of the sewage tank 700 is communicated with the external drainage pipeline through the anticorrosion self-absorption device 800. The anti-corrosive self-priming device 800 comprises a first anti-corrosive self-priming pump 810 and a second anti-corrosive self-priming pump 820 connected in parallel to communicate with the external drain line 20.
The basic principles and main features of the utility model and the advantages of the utility model have been shown and described above.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined by the appended claims and their equivalents.
Claims (9)
1. A high-efficient purification processing system of phenol-containing waste gas, characterized by comprising:
the emptying condenser is used for absorbing waste gas generated in the cardanol production, and an air inlet of the emptying condenser is connected with an external waste gas collecting pipeline in the cardanol production;
the air outlet of the emptying condenser is connected with the air inlet of the spray washing tower through a receiving tank,
the gas outlet of the spray washing tower is connected with an activated carbon adsorption device;
the waste gas is adsorbed by the activated carbon adsorption device and then discharged by an emptying device;
a first-stage spray absorption tower and a second-stage spray absorption tower which are connected are arranged in the spray washing tower, circulating water tanks are arranged at the lower parts of the first-stage spray absorption tower and the second-stage spray absorption tower, and a demisting section is arranged at the outlet of the second-stage spray absorption tower;
the first-stage spray absorption tower comprises an air inlet section, a flow equalizing section, a first-stage filler absorption section and a first-stage spray section which are sequentially connected;
the second-stage spray absorption tower comprises a second-stage packing absorption section and a second-stage spray section which are sequentially connected.
2. The system for purifying and treating the phenol-containing waste gas with high efficiency as set forth in claim 1, wherein said blow condenser is provided with a circulating return water line and a circulating feed water line.
3. The system for purifying and treating phenol-containing waste gas with high efficiency as set forth in claim 1, wherein the first stage spray section and the second stage spray section have different nozzle density and spray pressure.
4. The system for purifying and treating the phenol-containing waste gas with high efficiency as claimed in claim 1, wherein the evacuation device is a first evacuation fan and a second evacuation fan which are connected in parallel, and an exhaust chimney connected with the first evacuation fan and the second evacuation fan.
5. The system for purifying and treating phenol-containing waste gas with high efficiency according to claim 1, wherein the outlet of the circulating water tank is connected with the circulating device of the absorption tower, and the absorption liquid is recycled through the circulating device of the absorption tower.
6. The system for purifying and treating phenol-containing waste gas efficiently as set forth in claim 5, wherein said absorption tower circulating means comprises a first absorption tower circulating pump and a second absorption tower circulating pump connected in parallel.
7. The system for purifying and treating phenol-containing waste gas with high efficiency as set forth in claim 5, wherein the water outlet pipeline of said absorption tower circulating means is connected to the water inlet of the wastewater tank.
8. The system for purifying and treating phenol-containing waste gas with high efficiency as claimed in claim 7, wherein the water outlet of the sewage tank is communicated with the external drainage pipeline through an anticorrosion self-priming device.
9. The system for purifying and treating phenol-containing waste gas with high efficiency according to claim 8, wherein the anticorrosive self-priming device comprises a first anticorrosive self-priming pump and a second anticorrosive self-priming pump which are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123314315.8U CN216726568U (en) | 2021-12-27 | 2021-12-27 | High-efficient purification treatment system of phenol-containing waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123314315.8U CN216726568U (en) | 2021-12-27 | 2021-12-27 | High-efficient purification treatment system of phenol-containing waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216726568U true CN216726568U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123314315.8U Active CN216726568U (en) | 2021-12-27 | 2021-12-27 | High-efficient purification treatment system of phenol-containing waste gas |
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| CN (1) | CN216726568U (en) |
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2021
- 2021-12-27 CN CN202123314315.8U patent/CN216726568U/en active Active
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