CN209885520U - Organic waste gas treatment device - Google Patents

Organic waste gas treatment device Download PDF

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Publication number
CN209885520U
CN209885520U CN201920307160.9U CN201920307160U CN209885520U CN 209885520 U CN209885520 U CN 209885520U CN 201920307160 U CN201920307160 U CN 201920307160U CN 209885520 U CN209885520 U CN 209885520U
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waste gas
desorption
adsorption
activated carbon
carbon adsorption
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CN201920307160.9U
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耿良飞
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Suzhou Hongwei Environmental Technology Co Ltd
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Suzhou Hongwei Environmental Technology Co Ltd
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Abstract

The utility model relates to an organic waste gas treatment device, include: the waste gas pretreatment mechanism consists of one or more spray towers, and an air inlet is formed in one spray tower positioned at the front end; the adsorption mechanism is connected with the waste gas pretreatment mechanism; the desorption mechanism is connected with the adsorption mechanism; condensation recovery system, both ends link to each other with desorption mechanism and adsorption apparatus respectively, are arranged in carrying out condensation recovery processing to the waste gas that produces in the desorption mechanism, and send the waste gas that produces into adsorption apparatus and construct, the utility model discloses a spray column carries out the preliminary treatment to gas, then adsorbs through activated carbon adsorption tank, makes gaseous emission after reaching emission standard, adopts nitrogen gas as desorption regeneration gas simultaneously, and the expense of making nitrogen gas is lower, and the activated carbon adsorption tank adsorption purification ability after adopting hot nitrogen gas circulation desorption is more stable, and activated carbon adsorption tank's life is higher, can also utilize condensation recovery system to carry out recycle to the waste gas of desorption simultaneously.

Description

Organic waste gas treatment device
Technical Field
The utility model belongs to the exhaust-gas treatment field especially relates to an organic waste gas treatment device.
Background
In some factories of environmental protection science and technology companies, the comprehensive utilization capacity of the waste solvent is an important index for testing the capacity of treating waste liquid in one factory; the current method for treating the waste solvent of some companies adopts a 'washing barrel production line + secondary distillation', and the rectification recovery process in the treatment method can generate a large amount of organic waste gas mainly containing non-condensable gas of organic components containing chlorine and non-chlorine, and the waste gas has great influence on a plant area and the surrounding environment.
How to treat the organic waste gas is a problem which needs to be solved urgently, the pollution sources of the organic waste gas are widely distributed, and the exhaust purification is a feasible treatment way at present; however, the purification method selected for the purpose has high cost and energy consumption, is easy to generate secondary pollution, and cannot be recycled well.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art and providing a expense and power consumption are few, and no secondary pollution produces, can carry out recycle simultaneously to can be with organic waste gas treatment back, make it can reach discharge standard rear discharge's organic waste gas processing apparatus.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an organic exhaust gas treatment device comprising:
the waste gas pretreatment mechanism consists of one or more spray towers, and an air inlet is formed in one spray tower positioned at the front end;
the adsorption mechanism is connected with the waste gas pretreatment mechanism and is used for carrying out adsorption operation on waste gas;
the desorption mechanism is connected with the adsorption mechanism and is used for carrying out desorption operation on the adsorption mechanism;
and the two ends of the condensation recovery system are respectively connected with the desorption mechanism and the adsorption mechanism, and the condensation recovery system is used for carrying out condensation recovery treatment on the waste gas generated in the desorption mechanism and sending the generated waste gas into the adsorption mechanism.
Furthermore, the adsorption mechanism comprises an air inlet adsorption pipeline connected with the waste gas pretreatment mechanism, a plurality of activated carbon adsorption tanks arranged in parallel are arranged on the air inlet adsorption pipeline, air outlets of the activated carbon adsorption tanks are connected with the fan through an air outlet adsorption pipeline, and an online detector is arranged at the air outlet of the activated carbon adsorption tank; and an exhaust port is formed in the upper end of the fan.
Further, the desorption mechanism comprises a nitrogen box, the nitrogen box is connected with a desorption heater, and the desorption heater is communicated with the plurality of activated carbon adsorption boxes through an air inlet desorption pipeline; and the activated carbon adsorption box is provided with an air outlet desorption pipeline communicated with the air inlet desorption pipeline.
Further, the number of the activated carbon adsorption tanks is three.
Further, the condensation recovery system comprises a condenser, a delayer and a solvent temporary storage box which are connected in sequence; and an emptying hole is arranged above the solvent temporary storage box, and the emptying hole is introduced into the activated carbon adsorption box through a pipeline.
Furthermore, an airflow distribution grid is arranged in the spray tower.
Furthermore, one end of an air outlet of the spray tower is provided with a water baffle.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the utility model discloses the organic waste gas processing apparatus of scheme, carry out the preliminary treatment to gas through the spray column, then adsorb through supporting activated carbon adsorption case, thereby make gas discharge after reaching emission standard, adopt nitrogen gas as desorption regeneration gas simultaneously, the expense of making nitrogen gas is lower, the activated carbon adsorption case adsorption purification ability after adopting hot nitrogen gas circulation desorption is more stable, activated carbon adsorption case's life is higher, can also utilize condensation recovery system to carry out recycle to the waste gas of desorption simultaneously, has better practicality.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1 is a schematic structural view of the present invention;
wherein: 1. a spray tower; 2. an intake adsorption duct; 3. an activated carbon adsorption tank; 4. a fan; 5. an online detector; 6. an exhaust port; 7. a nitrogen box; 8. a desorption heater; 9. a gas intake desorption pipeline; 10. an air inlet; 11. an air outlet desorption pipeline; 12. a condenser; 13. a delayer; 14. a solvent temporary storage tank; 15. a water baffle; 16. a desorption fan; 17. a pipeline; 18. and an air outlet adsorption pipeline.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the utility model discloses an organic waste gas treatment device, include: the waste gas pretreatment mechanism consists of one or more spray towers 1, and an air inlet 10 is arranged on one spray tower 1 positioned at the front end; the adsorption mechanism is connected with the waste gas pretreatment mechanism and is used for carrying out adsorption operation on waste gas; the desorption mechanism is connected with the adsorption mechanism and is used for carrying out desorption operation on the adsorption mechanism; and the two ends of the condensation recovery system are respectively connected with the desorption mechanism and the adsorption mechanism, and the condensation recovery system is used for carrying out condensation recovery treatment on the waste gas generated in the desorption mechanism and sending the generated waste gas into the adsorption mechanism.
As a further preferred embodiment, an air flow distribution grid (not shown in the figures) is provided in the spray tower 1; and a water baffle 15 is arranged at one end of the air outlet of the spray tower 1.
Specifically, the waste gas treated by the device contains water-soluble components such as methanol, acetone, glycol and the like, so that a spray tower is arranged to absorb the gas, and the concentration of the waste gas is reduced. When the spraying tower works, gas flows in from the lower part of the spraying tower, and the gas passes through the gas flow distribution grid, so that the gas flow can uniformly enter the tower body; the purified gas passes through the water baffle to remove liquid drops carried out by the gas, and finally enters the adsorption mechanism.
As a further preferred embodiment, the adsorption mechanism comprises an air inlet adsorption pipeline 2 connected with the waste gas pretreatment mechanism, a plurality of activated carbon adsorption tanks 3 arranged in parallel are arranged on the air inlet adsorption pipeline 2, air outlets of the activated carbon adsorption tanks 3 are connected with a fan 4 through an air outlet adsorption pipeline 18, and an online detector 5 is arranged at an air outlet of the activated carbon adsorption tank 3; and an exhaust port 6 is arranged at the upper end of the fan 4.
As a further preferred embodiment, the number of the activated carbon adsorption tanks 3 is three.
Specifically, be equipped with business turn over gas port, maintenance manhole, fire water interface, temperature monitoring hole on the active carbon adsorption case, ensure to adsorb the safety and go on.
The tail gas pretreated by the waste gas pretreatment mechanism enters an activated carbon adsorption box, organic substances in the gas are adsorbed and trapped in an adsorption bed layer by activated carbon, and the purified tail gas reaches the standard and is discharged.
Install on-line measuring appearance in the exit of active carbon adsorption case, carry out real-time supervision to emission tail gas concentration, when emission concentration reaches the setting value (can adjust according to particular case), judge that this active carbon adsorption case reaches the absorption saturation state, enter into the desorption stage for it is up to standard to ensure that the tail gas after the active carbon adsorption case adsorbs to be clean.
Component concentration is higher in the waste gas that this device was handled, and single activated carbon adsorption case adsorbs the saturation time shorter, can not satisfy workshop production situation, simultaneously, for guaranteeing that export waste gas concentration is up to standard, sets up three activated carbon adsorption case altogether, and the two-stage adsorbs, and another activated carbon adsorption case desorption alternate use.
As a further preferred embodiment, the desorption mechanism comprises a nitrogen tank 7, the nitrogen tank 7 is connected with a desorption heater 8, one end of the desorption heater 8 is communicated with a desorption fan 16, and the other end is communicated with the plurality of activated carbon adsorption tanks 3 through an air intake desorption pipeline 9; and a gas outlet desorption pipeline 11 communicated with the gas inlet desorption pipeline 9 is arranged on the activated carbon adsorption box 3.
Specifically, after the online detector at the outlet of the activated carbon adsorption box detects that the exhaust emission concentration reaches the limit value, the activated carbon adsorption box which is saturated in adsorption is automatically switched to be in a desorption stage, a desorption fan is started, a desorption heater is started to heat and heat up to begin desorption, nitrogen is synchronously introduced from a nitrogen box at the moment, and a condensation recovery system is started simultaneously.
Wherein utilize nitrogen gas as desorption medium to retrieve the organic matter, can overcome the problem that vapor desorption regeneration produced secondary pollution, have the advantage to the recovery of soluble organic matter, can improve the life of active carbon and equipment simultaneously, have more market competition. The nitrogen gas is selected mainly in two aspects: firstly, the source is convenient, and secondly, the cost is low.
The activated carbon adsorption box that adopts behind the hot nitrogen gas circulation desorption adsorbs purification ability more stable, adopts nitrogen gas desorption to replace steam desorption, avoids the too high drawback that has short time adsorption efficiency of activated carbon humidity, and desorption temperature is high simultaneously, and desorption regeneration is thorough, and the life of activated carbon is higher.
As a further preferred embodiment, the condensation recovery system comprises a condenser 12, a delayer 13 and a solvent temporary storage tank 14 which are connected in sequence; the gas containing organic solvent enters the condenser 12, the temperature is rapidly reduced, the organic solvent is liquefied and flows into the solvent temporary storage tank 14, layering is carried out under the action of gravity, the toluene solvent at the upper layer enters the solvent temporary storage tank, and the wastewater at the lower layer is treated by sewage. And an emptying hole is arranged above the solvent temporary storage box, and exhausted gas is introduced into the activated carbon adsorption box 3 through a pipeline 17, so that no waste gas is generated in the recovery process.
The utility model discloses an organic waste gas processing apparatus carries out the preliminary treatment to gas through the spray column, then adsorb through supporting activated carbon adsorption case, thereby make gas discharge after reaching emission standard, adopt nitrogen gas as desorption regeneration gas simultaneously, the expense of making nitrogen gas is lower, the activated carbon adsorption case adsorption purification ability after adopting hot nitrogen gas circulation desorption is more stable, activated carbon adsorption case's life is higher, can also utilize condensation recovery system to carry out recycle to the waste gas of desorption simultaneously, has better practicality.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims (7)

1. An organic exhaust gas treatment device, comprising:
the waste gas pretreatment mechanism consists of one or more spray towers, and an air inlet is formed in one spray tower positioned at the front end;
the adsorption mechanism is connected with the waste gas pretreatment mechanism and is used for carrying out adsorption operation on waste gas;
the desorption mechanism is connected with the adsorption mechanism and is used for carrying out desorption operation on the adsorption mechanism;
and the two ends of the condensation recovery system are respectively connected with the desorption mechanism and the adsorption mechanism, and the condensation recovery system is used for carrying out condensation recovery treatment on the waste gas generated in the desorption mechanism and sending the generated waste gas into the adsorption mechanism.
2. The organic waste gas treatment device according to claim 1, characterized in that: the adsorption mechanism comprises an air inlet adsorption pipeline connected with the waste gas pretreatment mechanism, a plurality of activated carbon adsorption tanks arranged in parallel are arranged on the air inlet adsorption pipeline, air outlets of the activated carbon adsorption tanks are connected with the fan through an air outlet adsorption pipeline, and an online detector is arranged at the air outlet of each activated carbon adsorption tank; and an exhaust port is formed in the upper end of the fan.
3. The organic waste gas treatment device according to claim 2, characterized in that: the desorption mechanism comprises a nitrogen box, the nitrogen box is connected with a desorption heater, and the desorption heater is communicated with the plurality of activated carbon adsorption boxes through an air inlet desorption pipeline; and the activated carbon adsorption box is provided with an air outlet desorption pipeline communicated with the air inlet desorption pipeline.
4. The organic waste gas treatment device according to claim 2, characterized in that: the number of the activated carbon adsorption boxes is three.
5. The organic waste gas treatment device according to claim 2, characterized in that: the condensation recovery system comprises a condenser, a delayer and a solvent temporary storage box which are connected in sequence; and an emptying hole is arranged above the solvent temporary storage box, and the emptying hole is introduced into the activated carbon adsorption box through a pipeline.
6. The organic waste gas treatment device according to claim 1, characterized in that: and an airflow distribution grid is arranged in the spray tower.
7. The organic waste gas treatment device according to claim 1, characterized in that: and one end of the gas outlet of the spray tower is provided with a water baffle.
CN201920307160.9U 2019-03-12 2019-03-12 Organic waste gas treatment device Active CN209885520U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920307160.9U CN209885520U (en) 2019-03-12 2019-03-12 Organic waste gas treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920307160.9U CN209885520U (en) 2019-03-12 2019-03-12 Organic waste gas treatment device

Publications (1)

Publication Number Publication Date
CN209885520U true CN209885520U (en) 2020-01-03

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Application Number Title Priority Date Filing Date
CN201920307160.9U Active CN209885520U (en) 2019-03-12 2019-03-12 Organic waste gas treatment device

Country Status (1)

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CN (1) CN209885520U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113083266A (en) * 2021-04-27 2021-07-09 郭开辉 Many desorption process parallel active carbon desorption equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113083266A (en) * 2021-04-27 2021-07-09 郭开辉 Many desorption process parallel active carbon desorption equipment
CN113083266B (en) * 2021-04-27 2022-10-18 新乡汇淼科技有限公司 Many desorption process parallel active carbon desorption equipment

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