CN211411476U - Adsorption device for treating waste gas - Google Patents
Adsorption device for treating waste gas Download PDFInfo
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- CN211411476U CN211411476U CN201922067592.XU CN201922067592U CN211411476U CN 211411476 U CN211411476 U CN 211411476U CN 201922067592 U CN201922067592 U CN 201922067592U CN 211411476 U CN211411476 U CN 211411476U
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Abstract
An adsorption device for treating exhaust gas, comprising: the system comprises an activated carbon bed, a filtering device, a heat storage catalytic furnace, a chimney and a spray tower; the activated carbon bed is connected with a filtering device through a first air duct, and the filtering device is also connected with a spray tower through a pipeline; the activated carbon bed is connected with the chimney through a second air duct; the activated carbon bed is connected with the heat storage catalytic furnace through a third air duct and a fourth air duct, and a loop is formed between the activated carbon bed and the heat storage catalytic furnace; a thermocouple and a nitrogen protection gas valve are arranged in the activated carbon bed, and the nitrogen protection gas valve is connected with a nitrogen pipeline outside the activated carbon bed; the thermocouple for measuring the temperature is added into the activated carbon, so that the temperature in the activated carbon bed can be detected in real time, and when the temperature is too high, the nitrogen protection gas valve can be controlled to be opened, and nitrogen is introduced to protect the activated carbon bed.
Description
Technical Field
The utility model relates to an exhaust-gas treatment technical field, more specifically relate to an adsorption equipment who handles waste gas.
Background
The common methods for treating the waste gas by the waste gas adsorption device comprise an adsorption method, an absorption method, a catalytic combustion method, a thermal combustion method and the like, and when a purification method is selected, a method with low cost, low energy consumption and no secondary pollution is selected according to specific conditions, so that the harm is turned into the benefit as much as possible, and the components and the waste heat are fully recycled. When the adsorption method is used, it is necessary to desorb the activated carbon in a state where the activated carbon adsorption is saturated. In most cases, high-temperature gas is usually introduced to desorb the waste gas, but the excessive temperature can cause spontaneous combustion of the activated carbon, which affects the safety of waste gas treatment equipment and workers.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the defect in the background art, provide an adsorption equipment who handles waste gas, solved current activated carbon bed and probably the problem that the high temperature leads to the spontaneous combustion, added temperature measurement equipment and cooling measure in activated carbon bed, improved the adsorption equipment's of waste gas security when using.
To achieve the purpose, the utility model adopts the following technical proposal:
an adsorption device for treating exhaust gas, comprising: the system comprises an activated carbon bed, a filtering device, a heat storage catalytic furnace, a chimney and a spray tower; the activated carbon bed is connected with a filtering device through a first air duct, and the filtering device is also connected with a spray tower through a pipeline; the activated carbon bed is connected with the chimney through a second air duct; the activated carbon bed is connected with the heat storage catalytic furnace through a third air duct and a fourth air duct, and a loop is formed between the activated carbon bed and the heat storage catalytic furnace; the activated carbon bed is internally provided with a thermocouple and a nitrogen protection air valve, the nitrogen protection air valve is connected with a nitrogen pipeline outside the activated carbon bed, and the activated carbon bed is communicated with the nitrogen pipeline.
Preferably, a through hole is formed in the bottom of the activated carbon bed, and the nitrogen pipeline is embedded into the through hole of the activated carbon bed; and opening a nitrogen protection gas valve, and conveying nitrogen into the activated carbon bed through a nitrogen pipeline.
Preferably, the activated carbon bed further comprises a box body, an adsorption air inlet, an adsorption air outlet, a desorption air inlet and a desorption air outlet; the adsorption air inlet is formed in the top of the box body, a first air channel is embedded in the adsorption air inlet and connected with a filtering device, and an adsorption air inlet valve is arranged between the first air channel and the filtering device; the adsorption air outlet is formed in the bottom of the box body, and a second air duct is embedded in the adsorption air outlet; the second air duct is connected with the chimney, and an adsorption air outlet valve is sequentially arranged between the second air duct and the chimney.
Preferably, the desorption air outlet is positioned at one side below the box body, a third air duct is embedded in the desorption air outlet, the third air duct is connected with a catalytic air inlet of the thermal storage catalytic furnace, a desorption air outlet valve is arranged between the desorption air outlet and the third air duct, and a catalytic air inlet valve is arranged between the third air duct and the catalytic air inlet; one side of the top of box is equipped with the desorption air intake, the embedding has the fourth wind channel on the desorption air intake, the fourth wind channel with the catalysis air outlet of heat accumulation catalytic converter is connected the desorption air intake with be provided with desorption air inlet valve between the fourth wind channel, the fourth wind channel with be provided with catalysis air outlet valve between the catalysis air outlet.
Preferably, the inner wall of the box body is provided with transverse partition plates, the box body is divided into a plurality of spaces by the partition plates, and the stretchable drawers are arranged in the spaces; the drawer is also provided with security protection active carbon; the drawer is located under the air inlet.
Preferably, the drawer is further provided with a handle.
Preferably, an opening is formed in the middle of the box body of the activated carbon bed, and the drawer is placed in the opening; and unilateral opening doors are arranged on two sides of the opening.
Preferably, a left single-side door is arranged on the left side of the opening, the left side of the left single-side door is fixedly connected with the left side of the opening through a lock catch, and a rubber strip is arranged on the left side of the door; the right side of the opening is provided with a right single-side opening door, the right side of the right single-side opening door is fixedly connected with the right side of the opening through a lock catch, and the right side of the opening is provided with a rubber belt;
preferably, three edges of the single-edge door are provided with rubber belts.
Has the advantages that: after the thermocouple for temperature measurement and the nitrogen pipeline for temperature reduction are added, the overall safety performance of the adsorption device for treating waste gas is greatly improved.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
FIG. 1 is a schematic flow diagram of an adsorption unit for treating exhaust gases;
FIG. 2 is a schematic view of the structure of an activated carbon bed;
FIG. 3 is a schematic diagram of a door closing structure of an activated carbon bed;
wherein: the device comprises a spray tower 1, a pipeline 11, a filtering device 2, a first air duct 21, an adsorption air inlet valve 22, an activated carbon bed 3, a thermocouple 31, a box body 32, an adsorption air inlet 33, a desorption air inlet 34, an adsorption air outlet 35, a desorption air outlet 36, a partition plate 37, a drawer 38, a handle 381, a lock catch 39, a single-side door 310, a chimney 4, a second air duct 41, an adsorption air outlet valve 42, a heat storage catalytic furnace 5, a third air duct 51, a desorption air outlet valve 511, a catalytic air inlet valve 512, a fourth air duct 52, a catalytic air outlet valve 521, a desorption air inlet valve 522, a nitrogen pipeline 6 and a nitrogen protection valve 61.
Detailed Description
The technical solution of the present invention will be further described with reference to fig. 1 to 3 and by means of specific embodiments.
As shown in fig. 1, an adsorption apparatus for treating exhaust gas as shown in fig. 1 comprises: the system comprises an activated carbon bed 3, a filtering device 2, a heat storage catalytic furnace 5, a chimney 4 and a spray tower 1; the activated carbon bed 3 is connected with the filtering equipment 2 through a first air duct 21, and the filtering equipment 2 is also connected with the spray tower 1 through a pipeline; the activated carbon bed 3 is connected with the chimney 4 through a second air duct 41; the activated carbon bed 3 and the heat storage catalytic furnace 5 are connected through a third air duct 51 and a fourth air duct 52, and a loop is formed between the activated carbon bed 3 and the heat storage catalytic furnace 5; the activated carbon bed 3 is internally provided with a thermocouple 31 and a nitrogen protection gas valve 61, the nitrogen protection gas valve 61 is connected with a nitrogen pipeline 6 outside the activated carbon bed 3, and the activated carbon bed 3 is communicated with the nitrogen pipeline 6.
In the adsorption process of the exhaust gas, the exhaust gas is first pretreated, i.e. cleaned of solid particles, dust and moisture in the exhaust gas, and these factors affect the adsorption of the exhaust gas. Therefore, the spray tower 1 and the filtering equipment 2 are added before the waste gas is adsorbed. Waste gas passes through the spray tower 1, and the water mist in the spray tower 1 sprays to reduce solid particles and dust in the waste gas, then adsorbs aqueous vapor in the waste gas through the filtration equipment 2, accomplishes the preliminary treatment of waste gas. The waste gas after pretreatment can enter the activated carbon bed 3 for adsorption treatment, and due to the adsorption property of the activated carbon, the activated carbon can adsorb VOCs in the waste gas, so that the waste gas can be directly discharged from the chimney 4 after being purified once the effect of purifying the waste gas is achieved. However, the activated carbon adsorption has a certain limit, and can not be infinitely adsorbed, the activated carbon bed 3 needs to perform mutual gas exchange with the thermal storage catalytic furnace 5 when the adsorption value is saturated, the thermal storage catalytic furnace 5 blows hot air to the activated carbon bed 3, and due to the physical factor of the activated carbon, the harmful substances VOCs are desorbed from the activated carbon and then blown into the thermal storage catalytic furnace 5 for treatment. In the process of gas exchange, the spontaneous combustion of the activated carbon in the activated carbon bed 3 is usually caused by the excessively high temperature of the hot air blown into the thermal storage catalytic furnace 5, and the spontaneous combustion of the activated carbon not only destroys the environmental protection equipment, but also affects the life safety of personnel. For this purpose, a thermocouple 31 for measuring the temperature and a nitrogen line 6 for reducing the temperature are inserted into the activated carbon bed 3. Thermocouple 31 is connected with external display device, and the staff can observe the temperature in the active carbon bed 3 through display device, when finding the high temperature, then need open nitrogen gas pipeline 6, fills nitrogen gas into the active carbon and cools down, on the other hand, if active carbon bed 3 takes place the spontaneous combustion, fills into the oxygen that a large amount of nitrogen gas can be isolated in the air, has accomplished the effect of putting out a fire simultaneously. And when the temperature is lower than the temperature required by desorption, closing the nitrogen pipeline 6 and stopping cooling.
Preferably, a through hole is formed in the bottom of the activated carbon bed 3, and the nitrogen pipeline 6 is embedded into the through hole of the activated carbon bed 3; the nitrogen protection valve 61 is opened and nitrogen is fed into the activated carbon bed 3 through the nitrogen line 6.
Preferably, the activated carbon bed 3 further comprises a box 32, an adsorption air inlet 33, an adsorption air outlet 35, a desorption air inlet 34 and a desorption air outlet 36; the adsorption air inlet 33 is formed in the top of the box body 32, a first air duct 21 is embedded in the adsorption air inlet 33, the first air duct 21 is connected with the filtering device 2, and an adsorption air inlet valve 22 is arranged between the first air duct 21 and the filtering device 2; the adsorption air outlet 35 is arranged at the bottom of the box body 32, and a second air duct 41 is embedded in the adsorption air outlet 35; the second air duct 41 is connected with the chimney 4, and an adsorption air outlet valve 42 is sequentially arranged between the second air duct 41 and the chimney 4.
The exhaust gas pretreated in the adsorption device can be blown to the adsorption air inlet 33 through the first air duct 21, at this time, the adsorption air inlet valve 22 needs to be opened to keep the communication between the activated carbon bed 3 and the filtering device 2, and then the exhaust gas is sent into the activated carbon bed 3. When the exhaust gas purified by the activated carbon bed 3 reaches the emission standard, the adsorption air outlet valve 42 is opened to keep the activated carbon and the chimney 4 in communication, and the purified exhaust gas can be blown into the chimney 4 through the second air duct 41 and discharged from the chimney 4 to the external environment.
Preferably, the desorption air outlet 36 is located at one side below the box body 32, a third air duct 51 is embedded in the desorption air outlet 36, the third air duct 51 is connected with a catalytic air inlet of the thermal storage catalytic furnace 5, a desorption air outlet valve 511 is arranged between the desorption air outlet 36 and the third air duct 51, and a catalytic air inlet valve 512 is arranged between the third air duct 51 and the catalytic air inlet; a desorption air inlet 34 is formed in one side of the upper portion of the box body 32, a fourth air duct 52 is embedded into the desorption air inlet 34, the fourth air duct 52 is connected with a catalytic air outlet of the thermal storage catalytic furnace 5, a desorption air inlet valve 522 is arranged between the desorption air inlet 34 and the fourth air duct 52, and a catalytic air outlet valve 521 is arranged between the fourth air duct 52 and the catalytic air outlet.
In the activated carbon bed 3, when the adsorption capacity of the activated carbon reaches the peak state, desorption treatment needs to be performed on the activated carbon, at this time, the desorption air inlet valve 522 and the catalytic air outlet valve 521 are opened to enable the fourth air duct 52 to be kept in a communicated state, the heat storage catalytic furnace 5 blows hot air into the activated carbon bed 3 through the fourth air duct 52, the hot air is used for desorption of the activated carbon, after desorption is completed, the desorption air outlet valve 511 and the catalytic air inlet valve 512 are opened to enable the third air duct 51 to be kept in a communicated state, and harmful substances desorbed from the activated carbon are blown into the heat storage catalytic furnace 5 through the third air duct 51 to be subjected to reaction treatment.
Preferably, a transverse partition plate 37 is arranged on the inner wall of the box body 32, the box body 32 is divided into a plurality of spaces by the partition plate 37, and the stretchable drawer 38 is arranged on the spaces; the drawer 38 is also provided with security protection active carbon; the drawer 38 is located right below the suction inlet 33.
In the conventional RCO process, the activated carbon bed 3 needs to be replaced after being used for a certain period of time because its adsorptivity is lowered, but in the prior art, the activated carbon bed 3 is a huge individual, and the difficulty of replacement is increased due to a large volume, and it takes much time to replace the activated carbon bed. In order to solve this problem, a transverse partition plate 37 is provided in the box 32, a stretchable drawer 38 can be installed on the transverse partition plate 37, and activated carbon is placed in the drawer 38, the existing activated carbon bed 3 is configured as individual drawer-type activated carbon, the drawer-type activated carbon is firstly smaller in volume, secondly, each drawer-type activated carbon is a separate working unit, in practice, the degree of reduction of the adsorption capacity of each drawer-type activated carbon is not the same, and a worker can replace the required activated carbon according to the adsorption capacity of each drawer-type activated carbon.
Preferably, a handle 381 is further disposed on the drawer 38.
As shown in fig. 2 to 3, preferably, an opening is formed in the middle of the box 32 of the activated carbon bed 3, and the drawer 38 is placed in the opening; a single-sided door 310 is installed at both sides of the opening.
Preferably, a left single-side door is arranged on the left side of the opening, the left side of the left single-side door is fixedly connected with the left side of the opening through a lock catch 39, and a rubber strip is arranged on the left side of the door; a right single-side opening door is arranged on the right side of the opening, the right side of the right single-side opening door is fixedly connected with the right side of the opening through a lock catch 39, and a rubber belt is arranged on the right side of the opening;
the drawer 38 is provided with an opening door facing the box 32, the opening door is used for replacing the activated carbon, and when the activated carbon loses activity, a worker opens the opening door to take out the failed activated carbon from the opening door. The difficulty of taking out the active carbon is reduced, and the daily operation of workers is facilitated.
Preferably, three edges of the single-side door 310 are provided with rubber belts.
The activated carbon bed 3 is used for treating waste gas, and in order to prevent the waste gas from flowing out of the box body 32 from the opening when the waste gas is treated, a rubber belt is arranged on the opening and the unilateral opening door 310, and the rubber belt can enable the edge of the opening to be tightly combined with the edge of the opening door, so that the opening is in a sealed state, and the waste gas cannot flow out of the box body 32 to pollute the environment.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (9)
1. An adsorption device for treating exhaust gas, comprising: the system comprises an activated carbon bed, a filtering device, a heat storage catalytic furnace, a chimney and a spray tower; the method is characterized in that: the activated carbon bed is connected with a filtering device through a first air duct, and the filtering device is also connected with a spray tower through a pipeline; the activated carbon bed is connected with the chimney through a second air duct; the activated carbon bed is connected with the heat storage catalytic furnace through a third air duct and a fourth air duct, and a loop is formed between the activated carbon bed and the heat storage catalytic furnace; the activated carbon bed is internally provided with a thermocouple and a nitrogen protection air valve, the nitrogen protection air valve is connected with a nitrogen pipeline outside the activated carbon bed, and the activated carbon bed is communicated with the nitrogen pipeline.
2. An adsorption unit for treating exhaust gas according to claim 1, wherein: a through hole is formed in the bottom of the activated carbon bed, and the nitrogen pipeline is embedded into the through hole of the activated carbon bed; and opening a nitrogen protection gas valve, and conveying nitrogen into the activated carbon bed through a nitrogen pipeline.
3. An adsorption unit for treating exhaust gas according to claim 1, wherein: the activated carbon bed also comprises a box body, an adsorption air inlet, an adsorption air outlet, a desorption air inlet and a desorption air outlet; the adsorption air inlet is formed in the top of the box body, a first air channel is embedded in the adsorption air inlet and connected with a filtering device, and an adsorption air inlet valve is arranged between the first air channel and the filtering device; the adsorption air outlet is formed in the bottom of the box body, and a second air duct is embedded in the adsorption air outlet; the second air duct is connected with the chimney, and an adsorption air outlet valve is sequentially arranged between the second air duct and the chimney.
4. An adsorption device for treating exhaust gas according to claim 3, wherein: the desorption air outlet is positioned at one side below the box body, a third air duct is embedded in the desorption air outlet and is connected with a catalytic air inlet of the thermal storage catalytic furnace, a desorption air outlet valve is arranged between the desorption air outlet and the third air duct, and a catalytic air inlet valve is arranged between the third air duct and the catalytic air inlet; one side of the top of box is equipped with the desorption air intake, the embedding has the fourth wind channel on the desorption air intake, the fourth wind channel with the catalysis air outlet of heat accumulation catalytic converter is connected the desorption air intake with be provided with desorption air inlet valve between the fourth wind channel, the fourth wind channel with be provided with catalysis air outlet valve between the catalysis air outlet.
5. An adsorption device for treating exhaust gas according to claim 3, wherein: the inner wall of the box body is provided with transverse partition plates, the box body is divided into a plurality of spaces by the partition plates, and stretchable drawers are arranged in the spaces; the drawer is also provided with security protection active carbon; the drawer is located under the air inlet.
6. An adsorption unit for treating exhaust gas according to claim 5, wherein: the drawer is also provided with a handle.
7. An adsorption unit for treating exhaust gas according to claim 5, wherein: an opening is formed in the middle of the box body of the activated carbon bed, and the drawer is placed in the opening; and unilateral opening doors are arranged on two sides of the opening.
8. An adsorption unit for treating exhaust gas according to claim 7, wherein: a left single-side door is arranged on the left side of the opening, the left side of the left single-side door is fixedly connected with the left side of the opening through a lock catch, and a rubber strip is arranged on the left side of the door; the right side of the opening is provided with a right single-side opening door, the right side of the right single-side opening door is fixedly connected with the right side of the opening through a lock catch, and a rubber belt is arranged on the right side of the opening.
9. An adsorption unit for treating exhaust gas according to claim 8, wherein: and three edges of the single-side door are provided with rubber belts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922067592.XU CN211411476U (en) | 2019-11-26 | 2019-11-26 | Adsorption device for treating waste gas |
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| CN201922067592.XU CN211411476U (en) | 2019-11-26 | 2019-11-26 | Adsorption device for treating waste gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648781A (en) * | 2021-08-13 | 2021-11-16 | 江苏长虹机械设计院有限公司 | Novel automatic waste gas treatment equipment |
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- 2019-11-26 CN CN201922067592.XU patent/CN211411476U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648781A (en) * | 2021-08-13 | 2021-11-16 | 江苏长虹机械设计院有限公司 | Novel automatic waste gas treatment equipment |
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