CN211246104U - Industrial production VOCs exhaust-gas purification equipment - Google Patents
Industrial production VOCs exhaust-gas purification equipment Download PDFInfo
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- CN211246104U CN211246104U CN201921782739.7U CN201921782739U CN211246104U CN 211246104 U CN211246104 U CN 211246104U CN 201921782739 U CN201921782739 U CN 201921782739U CN 211246104 U CN211246104 U CN 211246104U
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Abstract
The utility model discloses an industrial production VOCs exhaust gas purification system, including the waste gas intake pipe, waste gas advances the one end of pipe and connects the exhaust gas filter, and the exhaust port of exhaust gas filter has formed the tandem structure with spray column inlet port through a pipeline, and the exhaust port of spray column has formed the tandem structure with vapour and liquid separator inlet port through an air duct, and vapour and liquid separator's exhaust port has formed the tandem structure with adsorption fan inlet port through a pipeline. The utility model discloses set up the activated carbon adsorber, it is fast to inhale the desorption, and adsorption material loading is few, and the investment is low, and the used liquid that sprays of spray column is basicity, can effectively absorb the acid gas in the waste gas, the utility model discloses an active carbon adsorbs concentrated and low temperature catalytic oxidation device, can effectively reduce the potential safety hazard, and organic waste gas's purification efficiency is high, and the life cycle of active carbon is longer, has reduced enterprise's operation cost, structure scientific and reasonable, convenience safe in utilization.
Description
Technical Field
The utility model discloses traditional chinese medicine production industry VOCs waste gas treatment field specifically is an industrial production VOCs exhaust-gas purification equipment.
Background
During the production process of traditional Chinese medicine, a large amount of organic waste gas containing volatile oil is generated. The volatile oil in the waste gas is extremely complex, and if the gas is directly discharged into the air, the gas can cause serious pollution to the surrounding environment and harm the human health. The existing waste gas treatment mode adopts high-altitude emission, and with the increasing severity of the environment protection situation, the waste gas needs to be deeply treated. To present VOCs waste gas treatment, mainly can divide into two main categories: the recovery method and the combustion method are not applicable in view of the complex and various components in the waste gas in the traditional Chinese medicine production industry, low concentration of the waste gas; for a combustion method, the adsorption-catalytic oxidation (combustion) technology is more suitable for treating waste gas with low waste gas concentration and small air quantity, and particularly has stronger adaptability to enterprises intermittently producing VOCs.
The disadvantages are as follows: because the waste gas generated in the production of the traditional Chinese medicine contains acidic gas components, if the waste gas is not pretreated, the activity or selectivity of the catalyst is easily reduced or eliminated. The activated carbon is easy to be inflammable in the high-temperature desorption process, thereby causing potential safety hazard. The regeneration efficiency of active carbon is not high, and harmful substance can not desorption out completely on adsorbing the active carbon carrier, causes the organic waste gas of absorption that the active carbon can not be fine, direct influence organic waste gas's purification efficiency.
In summary, those skilled in the art have proposed an apparatus for purifying waste gas from the industrial production of VOCs.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, the utility model provides an industrial production VOCs exhaust-gas purification equipment has solved the waste gas that traditional chinese medicine production produced and has contained the acid gas composition, if do not carry out the preliminary treatment, arouses the activity or the selectivity reduction or the disappearance of catalyst easily. The activated carbon is easy to be inflammable in the high-temperature desorption process, thereby causing potential safety hazard. The regeneration efficiency of active carbon is not high, and the harmful substance that adsorbs on the active carbon carrier can not desorption out completely, causes the organic waste gas of absorption that the active carbon can not be fine, directly influences the problem of organic waste gas's purification efficiency.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an industrial production VOCs waste gas purification device comprises a waste gas filter, a spray tower, a gas-liquid separator, an adsorption fan, a first activated carbon absorber, a second activated carbon absorber, a desorption fan, an electric heater, a catalytic oxidation device, a heat exchanger, a fresh air filter, a fresh air valve, a purification air pipe, a desorption air pipe, a dilution valve, a fire-fighting water pipe, a first waterproof valve, a second waterproof valve, a first adsorption air inlet valve, a second adsorption air inlet valve, a first desorption air inlet valve, a second desorption air inlet valve, a first adsorption exhaust valve, a second desorption exhaust valve, a tail end discharge fan, a discharge chimney, a waste gas inlet pipe and an air guide pipe, wherein one end of the waste gas inlet pipe is connected with the waste gas filter, the exhaust port of the waste gas filter forms a serial connection structure with the gas inlet port of the spray tower through a pipeline, the exhaust port of the spray tower forms a serial connection structure with the gas-liquid separator through an air guide pipe, the exhaust port of the gas-liquid separator forms a series connection structure with the air inlet port of the adsorption fan through a pipeline, the exhaust port of the adsorption fan forms a parallel connection structure with the air inlet ports of the first activated carbon adsorber and the second activated carbon adsorber respectively through a purification air pipe, the adsorption air outlet ports of the first activated carbon adsorber and the second activated carbon adsorber form a series connection structure with the air inlet port of the tail end emission fan through a pipeline, the air outlet port of the tail end emission fan is connected in series with the air inlet port of the emission chimney, the desorption outlets of the first activated carbon adsorber and the second activated carbon adsorber are connected in series with the air inlet port of the desorption fan through a pipeline, the air outlet port of the desorption fan is connected in series with the air inlet port of the electric heater through a pipeline, the air outlet port of the electric heater is connected in series with the air inlet port of the catalytic oxidation device through a pipeline, the utility model discloses a catalytic oxidation device, including catalytic oxidation device, heat exchanger, fresh air filter, pipeline, first active carbon adsorber, second active carbon adsorber and terminal emission fan, catalytic oxidation device's the port of giving vent to anger concatenates with the inlet port of heat exchanger through a pipeline mutually, the port of giving vent to anger of heat exchanger is provided with threely, and the port of giving vent to anger concatenates with the inlet port of fresh air filter mutually through the pipeline, and the port of giving vent to anger concatenates with the tracheal inlet port of desorption mutually for the last port of giving vent to anger, the tracheal port of giving vent to anger of desorption concatenates with the inlet port of first active carbon adsorber and.
Preferably, the first activated carbon adsorber and the second activated carbon adsorber are respectively and correspondingly connected in series with a first adsorption exhaust valve and a second adsorption exhaust valve on a pipeline section in series connection with the tail end exhaust fan.
Preferably, the pipeline sections of the first activated carbon absorber and the second activated carbon absorber connected in series with the desorption fan are respectively and correspondingly provided with a first desorption exhaust valve and a second desorption exhaust valve in series, and the pipeline sections of the first activated carbon absorber and the second activated carbon absorber connected in series with the desorption fan are provided with dilution valves in series at positions close to the air inlet port of the desorption fan.
Preferably, a fresh air valve is mounted in series on a pipeline section where one of the air outlet ports of the heat exchanger is connected with the fresh air filter in series.
Preferably, a first desorption air inlet valve and a second desorption air inlet valve are respectively and fixedly installed in the sections where the air outlet end of the desorption air pipe is connected with the first activated carbon absorber and the second activated carbon absorber in series.
Preferably, a fire hose is connected in series in the barrel structures of the first activated carbon adsorber and the second activated carbon adsorber together, and the fire hose is correspondingly connected in series between the first activated carbon adsorber and the second activated carbon adsorber respectively and is provided with a first waterproof fire valve and a second waterproof fire valve.
Preferably, a first adsorption air inlet valve and a second adsorption air inlet valve are correspondingly and serially connected between the air outlet end of the purification air pipe and the air inlet ports of the first activated carbon adsorber and the second activated carbon adsorber respectively.
Preferably, the first activated carbon adsorber and the second activated carbon adsorber are two members with the same size, structure and shape;
first active carbon adsorber includes the barrel, the top end face fixedly connected with air intake fill of barrel, the intermediate position at air intake fill top is run through and is provided with an intake pipe, the intermediate position fixed mounting of barrel bottom terminal surface has the outlet duct, and the inside of barrel has a plurality of active carbon adsorption plates along vertical direction fixed mounting.
Preferably, the liquid sprayed by the spray tower during operation is alkaline, and the interiors of the first activated carbon absorber and the second activated carbon absorber are always in a negative pressure state.
Preferably, the catalytic oxidation device is in a double-catalyst bed structure, and the catalyst is metal platinum or palladium.
Advantageous effects
The utility model provides an industrial production VOCs exhaust-gas purification equipment. Compared with the prior art, the method has the following beneficial effects:
1. this industrial production VOCs exhaust gas purification equipment has increased alkali spraying system at the desorption front end, can effectively absorb the acid gas in the waste gas, like sulfur dioxide, hydrogen sulfide etc. can effectively reduce adsorbent adsorption pressure, improves adsorbent life and absorption effect to prevent that the catalyst from poisoning, increase the safety and stability of equipment.
2. According to the VOCs waste gas purification equipment for industrial production, organic waste gas is firstly subjected to catalytic oxidation through the first catalyst bed layer to remove most organic components in the waste gas, and then passes through the second catalyst bed layer to almost completely remove the organic components in the waste gas, wherein the removal rate is more than 98.5%.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the working principle of the present invention;
fig. 3 is a schematic structural diagram of the activated carbon adsorber of the present invention.
In the figure: 1. an exhaust gas filter; 2. a spray tower; 3. a gas-liquid separator; 4. an adsorption fan; 5a, a first activated carbon adsorber; 5b, a second activated carbon adsorber; 6. a desorption fan; 7. an electric heater; 8. a catalytic oxidation unit; 9. a heat exchanger; 10. a fresh air filter; 11. a fresh air valve; 12. purifying the air pipe; 13. Desorbing the trachea; 14. a dilution valve; 15. a fire hose; 16a, a first waterproof valve; 16b, a second water-proof valve; 17a, a first adsorption air inlet valve; 17b, a second adsorption air inlet valve; 18a, a first desorption air inlet valve; 18b, a second desorption air inlet valve; 19a, a first adsorption exhaust valve; 19b, a second adsorption exhaust valve; 20a, a first desorption exhaust valve; 20b, a second desorption exhaust valve; 21. a tail end discharge fan; 22. discharging a chimney; 23. an exhaust gas inlet pipe; 24. an air duct;
5a-1, a cylinder body; 5a-2, an air inlet hopper; 5a-3, an air inlet pipe; 5a-4, an air outlet pipe; 5a-5, active carbon adsorption plate
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1-2, the present invention provides a technical solution: an industrial production VOCs waste gas purification device comprises a waste gas filter 1, a spray tower 2, a gas-liquid separator 3, an adsorption fan 4, a first activated carbon adsorber 5a, a second activated carbon adsorber 5b, a desorption fan 6, an electric heater 7, a catalytic oxidation device 8, a heat exchanger 9, a fresh air filter 10, a fresh air valve 11, a purification air pipe 12, a desorption air pipe 13, a dilution valve 14, a fire water pipe 15, a first water-elimination-prevention valve 16a, a second water-elimination-prevention valve 16b, a first adsorption air inlet valve 17a, a second adsorption air inlet valve 17b, a first desorption air inlet valve 18a, a second desorption air inlet valve 18b, first adsorption exhaust valves 19a and 19b, a first desorption exhaust valve 20a, a second desorption exhaust valve 20b, a tail end discharge fan 21, a discharge chimney 22, a waste gas inlet pipe 23 and a gas guide pipe 24, wherein one end of the waste gas inlet pipe 23 is connected with the, an exhaust port of the waste gas filter 1 forms a serial connection structure with an air inlet port of the spray tower 2 through a pipeline, an exhaust port of the spray tower 2 forms a serial connection structure with an air inlet port of the gas-liquid separator 3 through an air duct 24, an exhaust port of the gas-liquid separator 3 forms a serial connection structure with an air inlet port of the adsorption fan 4 through a pipeline, an exhaust port of the adsorption fan 4 forms a parallel connection structure with air inlet ports of the first activated carbon adsorber 5a and the second activated carbon adsorber 5b through a purification air pipe 12 respectively, adsorption air outlet ports of the first activated carbon adsorber 5a and the second activated carbon adsorber 5b form a serial connection structure with an air inlet port of the tail end discharge fan 21 through a pipeline, an air outlet port of the tail end discharge fan 21 is connected in series with an air inlet port of the discharge chimney 22, desorption outlets of the first activated carbon adsorber 5a and the second activated carbon adsorber 5b are connected with an air inlet port of the desorption fan 6 through a pipeline The ports are connected in series, the air outlet port of the desorption fan 6 is connected in series with the air inlet port of the electric heater 7 through a pipeline, the air outlet port of the electric heater 7 is connected in series with the air inlet port of the catalytic oxidation device 8 through a pipeline, the air outlet port of the catalytic oxidation device 8 is connected in series with the air inlet port of the heat exchanger 9 through a pipeline, three air outlet ports are arranged on the heat exchanger 9, one air outlet port is connected in series with the air inlet port of the fresh air filter 10 through a pipeline, one air outlet port is connected with the first activated carbon absorber 5a through a pipeline, the second activated carbon absorber 5b and the pipeline of the tail end discharge fan 21 are connected in series, the last air outlet port is connected in series with the air inlet port of the desorption air pipe 13, and the air outlet port of the desorption air pipe 13 is respectively connected in series with the air inlet ports of the first activated carbon absorber 5a and the second activated carbon absorber 5 b.
A first adsorption exhaust valve 19a and a second adsorption exhaust valve 19b are correspondingly and serially connected to a pipeline section where the first activated carbon adsorber 5a and the second activated carbon adsorber 5b are serially connected with the tail end discharge fan 21, a first desorption exhaust valve 20a and a second desorption exhaust valve 20b are correspondingly and serially connected to a pipeline section where the first activated carbon adsorber 5a and the second activated carbon adsorber 5b are serially connected with the desorption fan 6, a dilution valve 14 is serially connected to a position, close to an air inlet port of the desorption fan 6, of a pipeline section where one air outlet port of the heat exchanger 9 is serially connected with the fresh air filter 10, a fresh air valve 11 is serially connected to a pipeline section where one air outlet port of the desorption air pipe 13 is serially connected with the first activated carbon adsorber 5a, A first desorption air inlet valve 18a and a second desorption air inlet valve 18b are respectively and fixedly arranged in the sections where the second activated carbon adsorber 5b is connected in series, a fire hose 15 is jointly connected in series in the cylinder structures of the first activated carbon adsorber 5a and the second activated carbon adsorber 5b, a first water-elimination-prevention valve 16a and a second water-elimination-prevention valve 16b are respectively and correspondingly connected in series between the fire hose 15 and the first activated carbon adsorber 5a and the second activated carbon adsorber 5b, a first adsorption air inlet valve 17a and a second adsorption air inlet valve 17b are respectively and correspondingly connected in series between the air outlet end of the purification air pipe 12 and the air inlet ports of the first activated carbon adsorber 5a and the second activated carbon adsorber 5b, the liquid sprayed by the spray tower 2 during operation is alkaline, and the interiors of the first activated carbon adsorber 5a and the second activated carbon adsorber 5b are always in a negative pressure state, the catalytic oxidation device 8 is in a double-catalyst bed structure, and the catalyst is metal platinum or palladium.
Referring to fig. 3, the first activated carbon adsorber 5a and the second activated carbon adsorber 5b are two members having the same size, structure and shape;
the first activated carbon absorber 5a comprises a cylinder body 5a-1, the top end face of the cylinder body 5a-1 is fixedly connected with an air inlet hopper 5a-2, an air inlet pipe 5a-3 penetrates through the middle position of the top of the air inlet hopper 5a-2, an air outlet pipe 5a-4 is fixedly installed in the middle position of the bottom end face of the cylinder body 5a-1, and a plurality of activated carbon adsorption plates 5a-5 are fixedly installed inside the cylinder body 5a-1 along the vertical direction.
The present embodiment may further include a temperature and pressure monitoring instrument disposed in the catalytic oxidation device 8 and the first and second activated carbon adsorbers 5a and 5b, and the PLC system may automatically control the opening and closing of the valve in the exhaust gas purification system according to data fed back by the instrument, so as to complete the automatic operation control of the system.
When the waste gas purification system is used, when the start button of the waste gas purification system is turned on, the first adsorption air inlet valve 17a and the first adsorption exhaust valve 19b of the first activated carbon adsorber 5a (two activated carbon adsorbers are assumed) are firstly turned on, the adsorption fan 4 and the tail end discharge fan 21 are started, and the VOCs waste gas enters the first activated carbon adsorber 5a under the action of the suction force of the adsorption fan 4 to perform adsorption operation. The purified VOCs waste gas is sucked to a discharge chimney 22 by a tail end discharge fan 21, and the purified waste gas is discharged from the discharge chimney 22 at high altitude;
in the normal operation stage, when the activated carbon absorber performing the adsorption operation reaches a set adsorption time, or the concentration of the desorbed VOCs is about to exceed the standard, or the temperature in the activated carbon absorber performing the adsorption operation reaches a set temperature, the second adsorption air inlet valve 17b and the second adsorption exhaust valve 19b of the second activated carbon absorber 5b are opened, then the first adsorption air inlet valve 17a and the first adsorption exhaust valve 19a are closed, the first desorption air inlet valve 18a and the first desorption exhaust valve 20a of the first activated carbon absorber 5a are opened, the fresh air valve 11 is opened, the electric heater 7 is opened, the desorption fan 6 is started, the system starts to perform desorption operation on the gas in the first activated carbon absorber 5a and the second activated carbon absorber 5b, the fresh air enters the desorption system through the fresh air filter 10, is heated to a required temperature by the electric heater and then enters the catalytic oxidation device 8 for low-temperature combustion, the burnt gas exchanges heat with fresh air through the heat exchanger 9, and is sucked to a discharge chimney 22 through a tail end discharge fan through a desorption air pipe 13 after being cooled. Because the catalytic oxidation is an exothermic reaction, when the generated heat can maintain the heat balance of the system, the electric heater can be turned off, and the energy is saved;
in the normal operation process of the exhaust gas purification device, if the desorption gas temperature entering the first activated carbon adsorber 5a and the second activated carbon adsorber 5b is higher than the set temperature, the opening of the fresh air valve 11 is adjusted, and if the desorption gas temperature entering the first activated carbon adsorber 5a and the second activated carbon adsorber 5b is too low, the power of the electric heater is increased, so that the desorption gas temperature entering the first activated carbon adsorber 5a and the second activated carbon adsorber 5b is always kept in the set temperature range. In addition, if the temperature of the desorption system is about to exceed the set temperature or the concentration of the desorption gas reaches the lower explosion limit 1/4, the dilution valve can be opened to dilute the gas, so that the safety of the system is ensured.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an industrial production VOCs waste gas purification equipment, including waste gas filter (1), spray column (2), vapour and liquid separator (3), adsorption fan (4), first active carbon adsorber (5a), second active carbon adsorber (5b), desorption fan (6), electric heater (7), catalytic oxidation device (8), heat exchanger (9), new trend filter (10), new trend valve (11), purification trachea (12), desorption trachea (13), dilution valve (14), fire service water pipe (15), first water valve that disappears (16a), second water valve that disappears (16b), first adsorption admission valve (17a), second adsorption admission valve (17b), first desorption admission valve (18a), second desorption admission valve (18b),) first adsorption discharge valve (19a), (19b), first desorption discharge valve (20a), Second desorption discharge valve (20b), terminal emission fan (21), emission chimney (22), waste gas intake pipe (23) and air duct (24), its characterized in that: the waste gas filter (1) is connected to one end of the waste gas inlet pipe (23), a serial connection structure with a spray tower (2) air inlet port is formed at an exhaust port of the waste gas filter (1) through a pipeline, a serial connection structure with an air inlet port of a gas-liquid separator (3) is formed at an exhaust port of the spray tower (2) through an air duct (24), a serial connection structure with an air inlet port of an adsorption fan (4) is formed at an exhaust port of the gas-liquid separator (3) through a pipeline, a parallel connection structure is formed between the exhaust port of the adsorption fan (4) and the air inlet ports of a first activated carbon adsorber (5a) and a second activated carbon adsorber (5b) through a purification air pipe (12), and the adsorption air outlet ports of the first activated carbon adsorber (5a) and the second activated carbon adsorber (5b) form a serial connection structure with the air inlet port of a tail-end emission fan (21) through a pipeline, the tail-end exhaust fan (21) is provided with an air outlet port connected with an air inlet port of an exhaust chimney (22) in series, desorption outlets of a first activated carbon adsorber (5a) and a second activated carbon adsorber (5b) are connected with an air inlet port of a desorption fan (6) in series through a pipeline, an air outlet port of the desorption fan (6) is connected with an air inlet port of an electric heater (7) in series through a pipeline, an air outlet port of the electric heater (7) is connected with an air inlet port of a catalytic oxidation device (8) in series through a pipeline, an air outlet port of the catalytic oxidation device (8) is connected with an air inlet port of a heat exchanger (9) in series through a pipeline, three air outlet ports of the heat exchanger (9) are provided, one air outlet port is connected with an air inlet port of a fresh air filter (10) in series through a pipeline, and one air outlet port is connected with the first activated carbon adsorber (5a) through a pipeline, The second activated carbon adsorber (5b) and the pipeline of the tail end discharge fan (21) are connected in series, the last air outlet port is connected in series with the air inlet port of the desorption air pipe (13), and the air outlet port of the desorption air pipe (13) is connected in series with the air inlet ports of the first activated carbon adsorber (5a) and the second activated carbon adsorber (5b) respectively.
2. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: and a first adsorption exhaust valve (19a) and a second adsorption exhaust valve (19b) are correspondingly and respectively connected in series on the pipeline sections of the first activated carbon adsorber (5a) and the second activated carbon adsorber (5b) which are connected in series with the tail end discharge fan (21).
3. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: the pipeline sections of the first activated carbon absorber (5a) and the second activated carbon absorber (5b) which are connected in series with the desorption fan (6) are respectively and correspondingly provided with a first desorption exhaust valve (20a) and a second desorption exhaust valve (20b) in series, and the pipeline sections of the first activated carbon absorber (5a) and the second activated carbon absorber (5b) which are connected in series with the desorption fan (6) are provided with dilution valves (14) in series at positions close to the air inlet port of the desorption fan (6).
4. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: and a fresh air valve (11) is connected in series on a pipeline section of one of the air outlet ports of the heat exchanger (9) which is connected in series with the fresh air filter (10).
5. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: and a first desorption air inlet valve (18a) and a second desorption air inlet valve (18b) are correspondingly and fixedly installed in the sections where the air outlet end of the desorption air pipe (13) is connected with the first activated carbon absorber (5a) and the second activated carbon absorber (5b) in series respectively.
6. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: the fire fighting water pipe is characterized in that a fire fighting water pipe (15) is connected in series in the cylinder structures of the first activated carbon adsorber (5a) and the second activated carbon adsorber (5b), and the fire fighting water pipe (15) is correspondingly connected in series between the first activated carbon adsorber (5a) and the second activated carbon adsorber (5b) and provided with a first water-proofing valve (16a) and a second water-proofing valve (16 b).
7. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: and a first adsorption air inlet valve (17a) and a second adsorption air inlet valve (17b) are correspondingly and serially connected between the air outlet end of the purification air pipe (12) and the air inlet ports of the first activated carbon adsorber (5a) and the second activated carbon adsorber (5 b).
8. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: the first activated carbon adsorber (5a) and the second activated carbon adsorber (5b) are two components with the same size, structure and shape;
the first activated carbon adsorber (5a) comprises a cylinder body (5a-1), the top end face of the cylinder body (5a-1) is fixedly connected with an air inlet hopper (5a-2), the middle position of the top of the air inlet hopper (5a-2) is provided with an air inlet pipe (5a-3) in a penetrating mode, the middle position of the bottom end face of the cylinder body (5a-1) is fixedly provided with an air outlet pipe (5a-4), and a plurality of activated carbon adsorption plates (5a-5) are fixedly installed inside the cylinder body (5a-1) along the vertical direction.
9. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: the liquid sprayed by the spray tower (2) during working is alkaline, and the interiors of the first activated carbon absorber (5a) and the second activated carbon absorber (5b) are always in a negative pressure state.
10. An exhaust gas purification apparatus for industrial production of VOCs according to claim 1, wherein: the catalytic oxidation device (8) is in a double-catalyst bed structure, and the catalyst is metal platinum or palladium.
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| CN201921782739.7U CN211246104U (en) | 2019-10-23 | 2019-10-23 | Industrial production VOCs exhaust-gas purification equipment |
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| CN201921782739.7U CN211246104U (en) | 2019-10-23 | 2019-10-23 | Industrial production VOCs exhaust-gas purification equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112807940A (en) * | 2020-12-31 | 2021-05-18 | 南京都乐制冷设备有限公司 | Method for treating VOCs waste gas containing light alkane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112807940A (en) * | 2020-12-31 | 2021-05-18 | 南京都乐制冷设备有限公司 | Method for treating VOCs waste gas containing light alkane |
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