CN212657740U - Coating waste gas catalytic combustion system - Google Patents
Coating waste gas catalytic combustion system Download PDFInfo
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- CN212657740U CN212657740U CN202020987072.0U CN202020987072U CN212657740U CN 212657740 U CN212657740 U CN 212657740U CN 202020987072 U CN202020987072 U CN 202020987072U CN 212657740 U CN212657740 U CN 212657740U
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Abstract
The utility model discloses a coating waste gas catalytic combustion system, which comprises a control system, a paint mist filtering unit, an active carbon adsorption unit, a centrifugal fan and a chimney, wherein the paint mist filtering unit, the active carbon adsorption unit, the centrifugal fan and the chimney are connected in sequence; the paint mist filtering unit consists of a plurality of filter cartridge filters connected in parallel; the active carbon adsorption unit consists of a plurality of active carbon adsorption tanks connected in parallel; the top of the filter cartridge filter is provided with an air inlet pipe, and the side wall of the filter cartridge filter is provided with an air outlet pipe; a filter cylinder is arranged in the filter cylinder filter; the air outlet pipe is connected with an air inlet end at the top of the activated carbon adsorption tank through an air transmission pipeline; the system has scientific structural design, long service life of the active carbon, good treatment effect and high safety.
Description
Technical Field
The utility model relates to an application exhaust-gas treatment field especially relates to an application exhaust-gas catalytic combustion system.
Background
In the coating industry production process, can produce a large amount of coating cloud, these coating clouds expose and can pollute whole workshop in the air, influence operating personnel's healthy, consequently the application waste gas needs the collection to handle, and the general method of the coating waste gas treatment on the existing market is with activated carbon adsorption, after activated carbon adsorption saturation, carries out the desorption to activated carbon again, burns desorption gas.
Chinese patent CN209809865U discloses an activated carbon adsorption concentration and low-temperature catalytic decomposition device, which comprises a paint mist filter, an activated carbon adsorption bed, a low-temperature catalytic combustion bed, a desorption fan, a make-up air cooler, a system fan, an electric valve, a purification air pipe, a desorption air pipe and an organic waste gas inlet pipe; the active carbon adsorption concentration and low-temperature catalytic decomposition device can effectively reduce potential safety hazards; the purification efficiency of the organic waste gas is high; the service cycle of the activated carbon is longer, and the operation cost of enterprises is reduced. However, the patent also has certain defects, such as simple structure of the paint mist filter, poor preliminary treatment effect on the paint mist, increased burden on the subsequent activated carbon adsorption bed, and the problem that the activated carbon needs to frequently enter the desorption process to influence the normal operation of the equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's shortcoming, providing a structural design science, active carbon long service life, a coating waste gas catalytic combustion system that the treatment effect is good, the security is high.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
a coating waste gas catalytic combustion system comprises a control system, and a paint mist filtering unit, an activated carbon adsorption unit, a centrifugal fan and a chimney which are sequentially connected; the paint mist filtering unit consists of a plurality of filter cartridge filters connected in parallel; the active carbon adsorption unit consists of a plurality of active carbon adsorption tanks connected in parallel; the top of the filter cartridge filter is provided with an air inlet pipe, and the side wall of the filter cartridge filter is provided with an air outlet pipe; a filter cylinder is arranged in the filter cylinder filter; the air outlet pipe is connected with an air inlet end at the top of the activated carbon adsorption tank through an air transmission pipeline; the air outlet end at the bottom of the activated carbon adsorption tank is connected with a centrifugal fan; the bottom of the side wall of the activated carbon adsorption tank is provided with a desorption air inlet, the top of the opposite side wall is provided with a desorption air outlet, and the desorption air inlet is connected with the air outlet end of the catalytic incinerator through a desorption air inlet pipe; the desorption gas outlet is connected with the gas inlet end of the catalytic incinerator through a desorption gas outlet pipe; the air inlet pipe is provided with an air inlet valve, the air outlet pipe is provided with an air outlet valve, the air inlet end at the top of the activated carbon adsorption tank is provided with an air inlet valve, and the air outlet end at the bottom of the activated carbon adsorption tank is provided with an air outlet valve; the air inlet valve, the air outlet valve, the air inlet valve and the air outlet valve are all connected with a control system.
Preferably, a first temperature detector and a desorption air inlet main valve are arranged at the air outlet end of the catalytic incinerator, a desorption air inlet valve is arranged on the desorption air inlet pipe, the desorption air inlet pipe is further connected with an air supply pipeline, and a cooling fan is arranged on the air supply pipeline; a desorption gas outlet valve is arranged on the desorption gas outlet pipe; the gas outlet end of the catalytic incinerator is also provided with a bypass branch pipe, the other end of the bypass branch pipe is connected with the gas inlet end of the catalytic incinerator, and a bypass valve is arranged on the bypass branch pipe; the first temperature detector, the desorption air inlet main valve, the desorption air inlet valve, the desorption air outlet valve, the cooling fan and the bypass valve are all connected with the control system.
Preferably, the filter cartridge is provided with paint mist filter cotton which is zigzag and comprises a bamboo charcoal fiber layer arranged in the center, and a polyester fiber layer and a glass fiber layer which are symmetrically arranged on the upper side and the lower side of the bamboo charcoal fiber layer.
Preferably, a second temperature detector is arranged at the top in the activated carbon adsorption tank, and an activated carbon adsorption layer is arranged in the activated carbon adsorption tank; a cooling system and a fire fighting system are arranged above the active carbon adsorption layer; and the second temperature detector, the cooling system and the fire fighting system are all connected with the control system.
The utility model has the advantages that:
firstly, the method comprises the following steps: the filter cartridge filter is arranged to intercept dust, large particulate matters, micro particulate matters and part of harmful gas in the coating waste gas, and the concentration of the particulate matters and the harmful gas in the waste gas is remarkably reduced through the treatment of the filter cartridge filter, so that the pressure of subsequent activated carbon adsorption is reduced, the adsorption working time of the activated carbon is prolonged, the activated carbon is prevented from frequently entering a desorption state, the service life of the activated carbon is prolonged, and the treatment effect is good;
secondly, the method comprises the following steps: the gas outlet end of the catalytic incinerator is provided with a first temperature detector for detecting the temperature of desorbed inlet gas, once the temperature exceeds 120 ℃, a main desorption inlet valve is closed, a cooling fan arranged on an air supply pipeline is opened, an activated carbon adsorption layer is cooled, and the activated carbon is prevented from catching fire when the temperature exceeds 120 ℃; arranging a second temperature detector in the activated carbon adsorption tank, detecting the temperature in the activated carbon adsorption tank, and opening a cooling system to cool when the temperature exceeds 130 ℃; opening a fire-fighting system to cool when the temperature exceeds 150 ℃; the process is automatically controlled by a control system, and the safety is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of paint mist filter cotton.
In the figure: 1 is a control system, 2 is a paint mist filtering unit, 2.1 is a filter cartridge filter, 2.2 is an air inlet pipe, 2.3 is an air outlet pipe, 2.4 is a filter cartridge, 2.5 is paint mist filter cotton, 2.5.1 is a bamboo charcoal fiber layer, 2.5.2 is a polyester fiber layer, 2.5.3 is a glass fiber layer, 3 is an activated carbon adsorption unit, 3.1 is an activated carbon adsorption tank, 3.2 is a desorption air inlet, 3.3 is a desorption air outlet, 3.4 is an activated carbon adsorption layer, 3.5 is a cooling system, 3.6 is a fire fighting system, 4 is a centrifugal fan, 5 is a chimney, 6 is an air delivery pipeline, 7 is a desorption air inlet pipe, 8 is a desorption air outlet pipe, 9 is a catalytic incinerator, 10 is an air inlet valve, 11 is an air outlet valve, 12 is an air inlet valve, 13 is an air outlet valve, 14 is a first temperature detector, 15 is a desorption air inlet valve, 16 is an air inlet valve, 17 is a cooling fan, 18 is a desorption valve, 19 is a bypass valve, 20 is a bypass temperature detector, 21 is a bypass temperature, And 22 is a desorption gas inlet main valve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
A coating waste gas catalytic combustion system comprises a control system 1, and a paint mist filtering unit 2, an active carbon adsorption unit 3, a centrifugal fan 4 and a chimney 5 which are connected in sequence; the paint mist filtering unit 2 consists of a plurality of filter cartridge filters 2.1 which are connected in parallel; the active carbon adsorption unit 3 consists of a plurality of active carbon adsorption tanks 3.1 which are connected in parallel; an air inlet pipe 2.2 is arranged at the top of the filter cartridge filter 2.1, and an air outlet pipe 2.3 is arranged on the side wall of the filter cartridge filter; a filter cartridge 2.4 is arranged in the filter cartridge filter 2.1; the air outlet pipe 2.3 is connected with an air inlet end at the top of the activated carbon adsorption tank 3.1 through an air transmission pipeline 6; the air outlet end at the bottom of the activated carbon adsorption tank 3.1 is connected with a centrifugal fan 4; the bottom of the side wall of the activated carbon adsorption tank 3.1 is provided with a desorption air inlet 3.2, the top of the opposite side wall is provided with a desorption air outlet 3.3, and the desorption air inlet 3.2 is connected with the air outlet end of the catalytic incinerator 9 through a desorption air inlet pipe 7; the desorption gas outlet 3.3 is connected with the gas inlet end of the catalytic incinerator 9 through a desorption gas outlet pipe 8; an air inlet valve 10 is arranged on the air inlet pipe 2.2, an air outlet valve 11 is arranged on the air outlet pipe 2.3, an air inlet valve 12 is arranged at the air inlet end of the top of the activated carbon adsorption tank 3.1, and an air outlet valve 13 is arranged at the air outlet end of the bottom of the activated carbon adsorption tank 3.1; the air inlet valve 10, the air outlet valve 11, the air inlet valve 12 and the air outlet valve 13 are all connected with the control system 1 (not shown in the figure).
Preferably, a first temperature detector 14 and a desorption air inlet main valve 22 are arranged at the air outlet end of the catalytic incinerator 9, a desorption air inlet valve 15 is arranged on the desorption air inlet pipe 7, the desorption air inlet pipe 7 is further connected with an air supply pipeline 16, and a cooling fan 17 is arranged on the air supply pipeline 16; a desorption gas outlet valve 18 is arranged on the desorption gas outlet pipe 8; a bypass branch pipe 19 is further arranged at the gas outlet end of the catalytic incinerator 9, the other end of the bypass branch pipe 19 is connected with the gas inlet end of the catalytic incinerator 9, and a bypass valve 20 is arranged on the bypass branch pipe 19; the first temperature detector 14, the desorption air inlet main valve 22, the desorption air inlet valve 15, the desorption air outlet valve 18, the cooling fan 17 and the bypass valve 20 are all connected with the control system 1 (not shown in the figure).
Preferably, paint mist filter cotton 2.5 is arranged on the filter cartridge 2.4, and the paint mist filter cotton 2.5 is zigzag and comprises a bamboo charcoal fiber layer 2.5.1 arranged in the center, and a polyester fiber layer 2.5.2 and a glass fiber layer 2.5.3 symmetrically arranged on the upper side and the lower side of the bamboo charcoal fiber layer 2.5.1.
Preferably, the second temperature detector 21 is arranged at the top of the activated carbon adsorption tank 3.1, and the activated carbon adsorption layer 3.4 is arranged in the activated carbon adsorption tank 3.1; a cooling system 3.5 and a fire-fighting system 3.6 are arranged above the active carbon adsorption layer 3.4; the second temperature detector 21, the cooling system 2.5 and the fire fighting system 2.6 are all connected to the control system 1 (not shown in the figure).
The cooling system 2.5 is prior art, and mainly includes a nitrogen cooling system, including air supply, trachea, shower nozzle etc. and will not be described herein again.
The fire fighting system 2.6 is prior art, mainly includes water tank, water pipe, shower nozzle etc. and no longer repeated here.
The working principle of the system is as follows:
coating waste gas enters the filter cartridge filter 2.1 from the air inlet pipe 2.2, the filter cartridge filters 2.1 are connected in parallel, so that the filter cartridges can be used simultaneously or alternatively, the filter cartridge filter 2.1 is the prior art, the filter cartridges are generally not required to be replaced, and the dust removal treatment can be carried out on the filter cartridges through an electromagnetic valve and the like; the coated waste gas is filtered by paint mist filter cotton 2.5 on a filter cartridge 2.4 in a filter cartridge filter 2.1, dust, large particulate matters, tiny particulate matters and part of harmful gas in the waste gas are intercepted, and the concentration of harmful substances in the waste gas is obviously reduced; the waste gas enters the activated carbon adsorption tank 3.1 after being treated by the filter cartridge filter 2.1, and the activated carbon adsorption tank 3.1 is connected in parallel, so that the waste gas can be used simultaneously or alternatively, desorption operation is convenient to carry out, harmful substances in the waste gas are further absorbed by the activated carbon adsorption layer 3.4 in the activated carbon adsorption tank 3.1, and the waste gas is pumped to a chimney 5 by the centrifugal fan 4 to be discharged after treatment.
When the activated carbon adsorption layer 3.4 is saturated, the desorption state is entered, the air inlet valve 12 and the air outlet valve 13 are closed, the desorption air inlet main valve 22 and the desorption air inlet valve 15 are opened, the hot gas generated in the catalytic incinerator 9 enters the activated carbon adsorption tank 3.1 for air inlet desorption, and the desorption air outlet valve 18 is opened after desorption and the gas enters the catalytic incinerator 9 for catalytic incineration; a first temperature detector 14 is arranged at the gas outlet end of the catalytic incinerator 9 and is used for detecting the temperature of desorbed inlet gas, once the temperature exceeds 120 ℃, a desorption inlet gas main valve 22 is closed, a cooling fan 17 is arranged on an air supply pipeline 16 and is opened to cool the activated carbon adsorption layer 3.4, and the activated carbon is prevented from catching fire when the temperature exceeds 120 ℃; a second temperature detector 21 is arranged in the activated carbon adsorption tank 3.1, the temperature in the activated carbon adsorption tank 3.1 is detected, the temperature exceeds 130 ℃, and a cooling system 3.5 is opened for cooling; opening the fire-fighting system 3.6 to cool when the temperature exceeds 150 ℃; the process is automatically controlled by the control system 1, and the safety is high.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (4)
1. A coating waste gas catalytic combustion system is characterized in that: comprises a control system (1), and a paint mist filtering unit (2), an active carbon adsorption unit (3), a centrifugal fan (4) and a chimney (5) which are connected in sequence; the paint mist filtering unit (2) consists of a plurality of filter cartridge filters (2.1) connected in parallel; the active carbon adsorption unit (3) consists of a plurality of active carbon adsorption tanks (3.1) which are connected in parallel; an air inlet pipe (2.2) is arranged at the top of the filter cartridge filter (2.1), and an air outlet pipe (2.3) is arranged on the side wall of the filter cartridge filter; a filter cylinder (2.4) is arranged in the filter cylinder filter (2.1); the air outlet pipe (2.3) is connected with an air inlet end at the top of the activated carbon adsorption tank (3.1) through an air transmission pipeline (6); the air outlet end at the bottom of the activated carbon adsorption tank (3.1) is connected with a centrifugal fan (4); the bottom of the side wall of the activated carbon adsorption tank (3.1) is provided with a desorption air inlet (3.2), the top of the opposite side wall is provided with a desorption air outlet (3.3), and the desorption air inlet (3.2) is connected with the air outlet end of the catalytic incinerator (9) through a desorption air inlet pipe (7); the desorption gas outlet (3.3) is connected with the gas inlet end of the catalytic incinerator (9) through a desorption gas outlet pipe (8); an air inlet valve (10) is arranged on the air inlet pipe (2.2), an air outlet valve (11) is arranged on the air outlet pipe (2.3), an air inlet valve (12) is arranged at the air inlet end of the top of the activated carbon adsorption tank (3.1), and an air outlet valve (13) is arranged at the air outlet end of the bottom of the activated carbon adsorption tank (3.1); the air inlet valve (10), the air outlet valve (11), the air inlet valve (12) and the air outlet valve (13) are all connected with the control system (1).
2. A coated exhaust gas catalytic combustion system according to claim 1, wherein: a first temperature detector (14) and a desorption air inlet main valve (22) are arranged at the air outlet end of the catalytic incinerator (9), a desorption air inlet valve (15) is arranged on the desorption air inlet pipe (7), the desorption air inlet pipe (7) is also connected with an air supply pipeline (16), and a cooling fan (17) is arranged on the air supply pipeline (16); a desorption gas outlet valve (18) is arranged on the desorption gas outlet pipe (8); a bypass branch pipe (19) is further arranged at the air outlet end of the catalytic incinerator (9), the other end of the bypass branch pipe (19) is connected with the air inlet end of the catalytic incinerator (9), and a bypass valve (20) is arranged on the bypass branch pipe (19); the first temperature detector (14), the desorption air inlet main valve (22), the desorption air inlet valve (15), the desorption air outlet valve (18), the cooling fan (17) and the bypass valve (20) are all connected with the control system (1).
3. A coated exhaust gas catalytic combustion system according to claim 1, wherein: paint mist filter cotton (2.5) is arranged on the filter cartridge (2.4), the paint mist filter cotton (2.5) is in a sawtooth shape and comprises a bamboo charcoal fiber layer (2.5.1) arranged in the center, and a polyester fiber layer (2.5.2) and a glass fiber layer (2.5.3) which are symmetrically arranged on the upper side and the lower side of the bamboo charcoal fiber layer (2.5.1).
4. A coated exhaust gas catalytic combustion system according to claim 1, wherein: a second temperature detector (21) is arranged at the top in the activated carbon adsorption tank (3.1), and an activated carbon adsorption layer (3.4) is arranged in the activated carbon adsorption tank (3.1); a cooling system (3.5) and a fire-fighting system (3.6) are arranged above the active carbon adsorption layer (3.4); and the second temperature detector (21), the cooling system (3.5) and the fire-fighting system (3.6) are all connected with the control system (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020987072.0U CN212657740U (en) | 2020-06-03 | 2020-06-03 | Coating waste gas catalytic combustion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020987072.0U CN212657740U (en) | 2020-06-03 | 2020-06-03 | Coating waste gas catalytic combustion system |
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| CN212657740U true CN212657740U (en) | 2021-03-05 |
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| CN202020987072.0U Active CN212657740U (en) | 2020-06-03 | 2020-06-03 | Coating waste gas catalytic combustion system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440978A (en) * | 2021-07-08 | 2021-09-28 | 山东红石环保科技有限公司 | Industrial waste gas treatment device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440978A (en) * | 2021-07-08 | 2021-09-28 | 山东红石环保科技有限公司 | Industrial waste gas treatment device and method |
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