CN112387027A - Exhaust gas treatment device - Google Patents
Exhaust gas treatment device Download PDFInfo
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- CN112387027A CN112387027A CN201910754347.8A CN201910754347A CN112387027A CN 112387027 A CN112387027 A CN 112387027A CN 201910754347 A CN201910754347 A CN 201910754347A CN 112387027 A CN112387027 A CN 112387027A
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- adsorption
- exhaust gas
- control valve
- gas treatment
- gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
Abstract
The invention provides a waste gas treatment device which comprises a device body, a wind collecting cover, filtering equipment, adsorption equipment and an air input pipe. The device body is provided with a walking part; the air collecting cover is arranged on the device body and is used for collecting waste gas; the filtering equipment is arranged in the device body and is connected with the air collecting cover to receive and filter the waste gas; the adsorption equipment is arranged in the device body, a first gas port of the adsorption equipment is connected with the filtering equipment, and a second gas port of the adsorption equipment is communicated with the external environment through a first exhaust pipe; the air inlet pipe is in communication with the external environment and is used to deliver air to the filter device to purge the filter device. The waste gas treatment device provided by the invention can realize adsorption treatment of waste gas, improve the environment, realize automatic purging of the filtering equipment and improve the waste gas treatment efficiency.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment device.
Background
Nowadays, people tend to pay attention to the treatment of organic waste gas generated in daily production and life, and the organic waste gas has great harm to human health and ecological environment. With the increasingly strict environmental protection law, domestic large-scale enterprises have carried out the installation of waste gas treatment system in succession, but have a difficult point to the organic waste gas treatment of the operating platform that the outdoor unorganized emission of waste gas and waste gas source are unsettled, install fixed, large-scale waste gas treatment system and carry out the organic waste gas treatment of above-mentioned circumstances, not only can have the problem of treatment effect not good, also can cause the waste of manpower, material resources and fund.
At present, tens of thousands of small and medium-sized enterprises in China have the problem that a waste gas source is not fixed or waste gas is discharged in an unorganized mode almost in each production and processing type enterprise, the operation platform with the waste gas source not fixed and the waste gas air quantity small is used for treatment, human body and environment hazards caused by waste gas volatilization are reduced, and the method has practical significance for establishing an environment-friendly sustainable development society.
Accordingly, there is a need for an exhaust gas treatment device that at least partially addresses the problems of the prior art.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to at least partially solve the above-mentioned problems, according to an aspect of the present invention, there is provided an exhaust gas treatment device including:
the device comprises a device body, a handle and a handle, wherein the device body is provided with a walking part;
the air collecting cover is arranged on the device body and is used for collecting waste gas;
the filtering equipment is arranged in the device body and is connected with the air collecting cover so as to receive and filter the waste gas;
the adsorption equipment is arranged in the device body, a first gas port of the adsorption equipment is connected with the filtering equipment, and a second gas port of the adsorption equipment is communicated with the external environment through a first exhaust pipe; and
an air input duct in communication with an ambient environment and for delivering air to the filter apparatus to purge the filter apparatus.
According to this scheme, exhaust treatment device not only can realize the adsorption treatment of waste gas, improves the environment, can realize filtration equipment's automation moreover and sweep, improves exhaust treatment's efficiency. The exhaust gas treatment device provided by the invention can be applied to a small-sized operating platform with an unfixed exhaust gas source and unorganized discharge.
Optionally, a heating device is arranged on the air input pipe to heat air, and the air input pipe is connected with the second gas port of the adsorption device, so that the adsorption device desorbs through the heated air.
Optionally, the adsorption equipment further comprises a catalytic combustor for treating the desorbed gas, wherein a gas inlet of the catalytic combustor is connected with the first gas port of the adsorption equipment, and a gas outlet of the catalytic combustor is communicated with the external environment.
Optionally, a first control valve is arranged on a pipeline connected with the first gas port of the adsorption device, and the first control valve is selectively communicated with the outlet of the filtering device or the gas inlet of the catalytic combustor.
Optionally, the first control valve is configured to communicate the first gas port of the adsorption apparatus and the outlet of the filtration apparatus in an adsorption process state.
Optionally, the first control valve is configured to communicate the first gas port of the adsorption device and the gas inlet of the catalytic burner in a desorption process state.
Alternatively, the control unit of the exhaust gas treatment device is configured to communicate the adsorption device and the catalytic combustor by controlling the first control valve in response to a first temperature at the outlet of the heating device or in response to a second temperature of the adsorption device in a desorption treatment state.
Optionally, a water reservoir is included, the gas outlet of the catalytic burner being in communication with the ambient environment through a second exhaust pipe extending through the water reservoir to cool the gas (exhaust gas) discharged via the second exhaust pipe.
Optionally, a second control valve is arranged on a pipeline connected with a second gas port of the adsorption equipment, and the second control valve is selectively communicated with the air input pipe or the first exhaust pipe.
Optionally, the second control valve is configured to communicate the second gas port of the adsorption apparatus and the first exhaust pipe in an adsorption process state.
Optionally, the second control valve is configured to communicate the second gas port of the adsorption apparatus and the air input line in a desorption process or a purge process state.
Optionally, the adsorption device further comprises a water storage device, the water storage device is connected with the adsorption device through a water conveying pipe, and the water conveying pipe is provided with a water conveying control valve.
Alternatively, the control unit of the exhaust gas treatment apparatus is configured to communicate the adsorption device and the water reservoir by controlling the water delivery control valve in response to a third temperature of the adsorption device in the desorption treatment state.
Optionally, a fan is disposed on the air input pipe, and the control unit of the exhaust gas treatment device is configured to stop the operation of the heating device and/or the fan in response to a third temperature of the adsorption device in a desorption treatment state.
Drawings
The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles and apparatus of the invention. In the drawings, there is shown in the drawings,
fig. 1 is a schematic configuration diagram of an exhaust gas treatment device according to a preferred embodiment of the present invention; and
fig. 2 is a schematic flow diagram of the exhaust gas treatment device shown in fig. 1.
Description of the reference numerals
10: the apparatus body 20: wind collecting cover
30: the filtering device 40: adsorption equipment
50: the heating device 60: catalytic burner
70: the water reservoir 81: first fan
82: first control valve 83: second fan
84: second control valve 85: water delivery control valve
86: flame arrestor 87: collecting bucket
88: third control valve 91: first temperature sensor
92: second temperature sensor 93: first gas concentration monitor
94: second gas concentration monitor 95: third temperature sensor
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the following description, for purposes of explanation, specific details are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details set forth herein as are known to those of skill in the art. The following detailed description of the preferred embodiments of the present invention, however, the present invention may have other embodiments in addition to the detailed description, and should not be construed as being limited to the embodiments set forth herein.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, as the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for purposes of illustration only and are not limiting.
Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".
In the following, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the invention and do not limit the invention.
As shown in fig. 1 and 2, the exhaust gas treatment device provided by the present invention, particularly for treating organic exhaust gas, can be applied to various places with exhaust gas, and is particularly applied to a small-sized operation platform with an unfixed exhaust gas source and an unorganized discharge.
The exhaust gas treatment device includes a device body 10, and the device body 10 is a support structure for supporting various components, equipment, and the like. The device body 10 is provided with a traveling part, whereby a user can move the exhaust gas treatment device to a place of exhaust gas to be treated as needed, having an operation platform of an exhaust gas source.
The exhaust gas treatment device comprises a wind collection hood 20 for collecting exhaust gases. The wind collection cover 20 is provided on the apparatus body 10. Alternatively, the piping between the inlet and the outlet of the cowl 20 may be arbitrarily moved so that the inlet of the cowl 20 may be moved to a suitable position corresponding to the source of the exhaust gas, for example, near 0.2m of the source of the exhaust gas.
The exhaust gas treatment device further comprises a filtering device 30 for filtering the exhaust gas and an adsorption device 40 for adsorbing the exhaust gas. The filter device 30 is disposed downstream of the air collection hood 20 and is connected to the air collection hood 20 via an exhaust gas inlet line L1. The adsorption apparatus 40 is connected to the first gas port of the adsorption apparatus 40 through a gas pipe L2. The second gas port of the adsorption apparatus 40 communicates with the outside environment via the first exhaust pipe L3. In this embodiment, the collected exhaust gas is filtered and then subjected to adsorption treatment.
The exhaust gas inlet pipe L1 is provided with a first fan 81. In the illustrated embodiment, the first fan 81 is disposed at the outlet of the wind collection cover 20 and is installed on the top of the device body 10. A first control valve 82 is provided on a pipe (i.e., a part of the gas pipe L2) connected to the first gas port of the adsorption apparatus 40. When the exhaust gas is treated (in other words, in the adsorption state), the first control valve 82 causes the outlet of the filtering device 30 and the first gas port of the adsorption device 40 to communicate. Specifically, the adsorbed gas is output from the second gas port and discharged to the outside via the first exhaust pipe L3. The air collecting cover 20, the first fan 81, the adsorption device 40, the first exhaust pipe L3, and the pipes and the pipe fittings therebetween (the pipe fittings include the first control valve 82) constitute an exhaust gas treatment unit for collecting, filtering, and adsorbing the exhaust gas.
Alternatively, the adsorption device 40 may be an activated carbon adsorption tank packed with activated carbon. The filter device 30 may be a cartridge filter device to filter the exhaust gas with high efficiency.
Since the filter device 30 is clogged in a long time use, the exhaust gas treatment apparatus further includes an air input pipe L4 communicating with the external environment. The air supply line L4 is used to supply air to the filter device 30, so that dust can be removed from the filter device 30 by means of a purge of air. The air input line L4 is provided with a second fan 83, and the second fan 83 provides a suitable air flow rate to provide the purging efficiency. A collection hopper 87 is provided below the filtering device 30, and the collection hopper 87 is provided in the apparatus body 10 to collect the dust after purging. The collecting hopper 87 communicates with the bottom outlet of the apparatus body 10 to discharge dust.
In the illustrated embodiment, the air inlet line L4 is connected to the filter device 30 via the adsorption device 40. Specifically, a second control valve 84 is provided on a pipe connected to the second gas port of the adsorption apparatus 40, and the second control valve 84 is selectively communicated with the air input pipe L4 or the first exhaust pipe L3. Further, the second control valve 84 is a three-way valve, and may be an electromagnetic three-way valve. When the exhaust gas is treated, the second control valve 84 communicates the first exhaust pipe L3 with the second gas port of the adsorption apparatus 40. When the desorption process or the purge filter device 30 is purged (in other words, in the desorption process or the purge process state), the second control valve 84 communicates the air input line L4 with the second gas port of the adsorption device 40. The air is supplied to the filter device 30 through the adsorption device 40 and the gas pipe L2, so that the piping arrangement can be optimized and the cost can be saved.
The air input pipe L4 may also be provided with a heating device 50 to heat the air. Alternatively, in one embodiment, the heating apparatus 50 may not be operated and air passes only through the heating apparatus 50 when purging the filtering apparatus 30. In another embodiment, the heating device 50 has a first gear for controlling the heating temperature. When purging the filter apparatus 30, the heating apparatus 50 may be in the first gear, purging the filter apparatus 30 with heated air. It is of course desirable that the heating temperature is not too high, for example less than 60 degrees, to keep the energy consumption low.
In an embodiment not shown, the air inlet pipe L4 connected to the filter device 30 may be arranged separately.
The air input pipe L4, the second fan 83, the filter device 30, and the piping therebetween of the present embodiment constitute a purge unit.
Further, since the adsorbent packed in the adsorption apparatus 40 may be deactivated or saturated when the adsorption apparatus 40 is used for a long time, the present embodiment is provided with the heating apparatus 50 to desorb the adsorption apparatus 40 by heated air. The heating device 50 is provided in the apparatus body 10, and alternatively, it may be disposed above the adsorption device 40.
The exhaust gas treatment device further comprises a catalytic burner 60 for treating the desorbed gases. The catalytic burner 60 is provided in the apparatus body 10. The air inlet of the catalytic combustor 60 is connected to the first gas port of the adsorption apparatus 40, and the air outlet of the catalytic combustor 60 is communicated with the external environment through a second exhaust pipe L5. Specifically, a first control valve 82 is disposed proximate the first gas port of the sorption arrangement 40, the first control valve 82 being selectively in communication with either the outlet of the filtration arrangement 30 or the inlet of the catalytic burner 60. Further, the first control valve 82 is a three-way valve, and may be selected as a solenoid three-way valve. When the exhaust gas is treated (in the adsorption treatment state), the first control valve 82 communicates the outlet of the filtering device 30 with the first gas port of the adsorption device 40. When the desorption process is performed (in other words, in the desorption process state), the first control valve 82 communicates the intake port of the catalytic combustor 60 with the first gas port of the adsorption apparatus 40. The outlet of the catalytic burner 60 is connected to the environment via a second exhaust line L5.
Alternatively, in the illustrated embodiment, the second exhaust pipe L5 may be provided with a third control valve 88 near the catalytic combustor 60. The third control valve 88, which may be used to control communication with the outside atmosphere, is a two-way valve provided on the second exhaust pipe L5.
In an embodiment not shown, the third control valve 88 may not be provided.
Optionally, the exhaust gas treatment device further comprises a water reservoir 70 for storing cooling water. The second exhaust pipe L5 extends through the water reservoir 70 from below to above so that the gas (second gas) discharged from the catalytic burner 60 can be cooled in the second exhaust pipe L5 and then discharged outside via the exhaust pipe.
In the present embodiment, the heating apparatus 50 has the second gear for controlling the heating temperature. When the adsorption device 40 is performing desorption, the heating device 50 is turned on at the second gear, and the temperature continues to rise. At this time, the first control valve 82 communicates the catalytic combustor 60 with the adsorption device 40, and the second control valve 84 communicates the air input line L4 with the adsorption device 40. When heated to the first temperature of the air, the adsorption apparatus 40 formally starts desorption. The heating element inside the catalytic burner 60 is automatically turned on, and the desorbed gas is first heated by the heating element and then catalytically oxidized by the catalyst to include H2O and CO2The discharge gas of (2). The exhaust gas is conveyed through a second exhaust pipe L5, and is exhausted after being cooled by the water storage device. Alternatively, the first temperature may be greater than or equal to 80 ℃ and the desorption time may be controlled to be 3 hours.
Alternatively, the time when the adsorption device 40 formally starts desorption may be when the temperature of the adsorption device 40 reaches the second temperature. Specifically, when the temperature of the adsorption device 40 reaches the second temperature, the adsorption device 40 formally starts desorption, the heating component inside the catalytic combustor 60 automatically starts, and the desorbed gas is heated first and then catalytically oxidized to form the exhaust gas. Alternatively, the second temperature may be greater than or equal to 60 ℃.
The water reservoir 70 is connected to the water inlet of the adsorption apparatus 40 through a water delivery pipe L6. The water delivery pipe L6 is provided with a water delivery control valve 85. When the adsorption apparatus 40 is in the adsorption process and the temperature of the adsorption apparatus 40 reaches the third temperature, the water delivery control valve 85 is opened, the other valves (e.g., the first control valve 82, the second control valve 84, etc.) are closed, and the heating apparatus 50 and/or the second fan 83 is stopped (specifically, abruptly stopped). Water from the reservoir 70 is sprayed onto the adsorbent in the adsorption apparatus 40 until the temperature in the adsorption apparatus 40 is less than or equal to 30 ℃, and the system is shut down. A water tank (not shown) may be provided below the adsorption apparatus 40 to collect the sprayed water. Optionally, the third temperature is greater than or equal to 120 ℃. It is understood that the third temperature is an abnormal temperature defined by the exhaust gas treatment device.
The heating device 50 is provided with a first temperature sensor 91 near its outlet to monitor the temperature of the heated air, including the first temperature, in real time. The exhaust gas treatment device further comprises a control unit. The control unit is configured to communicate the adsorption device 40 and the catalytic burner 60 by controlling the first control valve 82 in response to a first temperature at the outlet of the heating device 50 in the desorption process state. The adsorption apparatus 40 is provided with a second temperature sensor 92 to monitor the temperature of the adsorption apparatus 40 in real time, including the second temperature and the third temperature. Alternatively, the control unit is configured to communicate the adsorption device 40 and the catalytic combustor 60 by controlling the first control valve 82 in response to the second temperature of the adsorption device 40 in the desorption process state.
Optionally, the heating device 50 is provided with a third temperature sensor 95 near its inlet to detect the temperature at the inlet of the heating device 50.
The control unit is configured to communicate the adsorption apparatus 40 and the water reservoir 70 by controlling the water delivery control valve 85 in response to the third temperature of the adsorption apparatus 40, and to stop the operation of the heating apparatus 50 and/or the second fan 83 in response to the third temperature of the adsorption apparatus 40 in the desorption process state. Further, the water delivery control valve 85 is connected to a second temperature sensor 92 to control the opening and closing of the water delivery control valve 85 according to the temperature detected by the second temperature sensor 92.
Both ends of the filter device 30 are provided with pressure sensors (not shown) which monitor the pressures at both ends thereof, respectively. The control unit is configured to control the first control valve 82 and the second control valve 84 to communicate the filter device 30, the adsorption device 40 and the air input pipe L4 with each other and to turn on the second fan 83 when the pressure difference across the filter device 30 reaches a preset value. This allows for automatic purging.
The adsorption apparatus 40 is provided with a first gas concentration monitor 93 (e.g., an online VOCs concentration monitor) near the first gas port, and the adsorption apparatus 40 is provided with a second gas concentration monitor 94 near the second gas port to monitor the gas concentrations at the first gas port and the second gas port in real time. The control unit is configured to determine whether the adsorbent in the adsorption apparatus 40 is dead or saturated in response to a difference between the gas concentration at the first gas port and the gas concentration at the second gas port, thereby controlling the first control valve 82 and the second control valve 84 to enable the apparatus to perform a purge process or a desorption process. The above difference may be less than 5%.
Alternatively, the filtering device 30 is disposed at the bottom of the apparatus body 10 in order to facilitate the rational use of the accommodation space in the apparatus body 10. The adsorption apparatus 40 and the catalytic combustor 60 are each disposed above the filter apparatus 30, and are arranged substantially side by side in a horizontal direction. The second fan 83 and the heating device 50 are both disposed above the adsorption device 40, and are arranged substantially side by side in the horizontal direction. A flame arrestor 86 is provided before the inlet of the filter apparatus 30. Flame arrestors 86 are provided before the inlet and after the outlet of the heating apparatus 50. Therefore, the potential safety hazard can be avoided, and the safety is improved.
The operation of the present embodiment is described in detail below.
Step S10: the first control valve 82 and the second control valve 84 are controlled so that the filter device 30, the adsorption device 40, and the first exhaust pipe L3 communicate with each other, and the remaining valves are closed. The first fan 81 is started to move the air collecting hood 20 to a position 0.2m near the organic waste gas source. The organic waste gas enters the filtering equipment 30 through the flame arrester 86, is filtered, is sent into the adsorption equipment 40 for adsorption, and the purified gas reaching the standard is discharged through the first exhaust pipe.
Step S20: the gas concentrations at the first gas port and the second gas port of the adsorption equipment 40 are respectively monitored by the first gas concentration monitor 93 and the second gas concentration monitor 94, and when the gas concentration at the first gas port reaches the emission limit value or the gas concentration change at the first gas port and the second gas port is less than 5%, the adsorption equipment 40 is judged to be invalid or saturated, and then the desorption mode is entered.
Step S30: the filter apparatus 30 is back-purged to allow dust adhering to the walls of the filter cartridge to fall off and be collected by the lower hopper.
When desorption starts, the temperature of the air is gradually increased by the heating device 50, and the heated air is sent to the adsorption device 40 for desorption treatment. The desorbed gas enters the catalytic combustor 60 for catalytic oxidation of the high concentration exhaust gas. Catalytic oxidation of the desorbed gas to H2O and CO2. Catalytic oxygenThe temperature of the discharged gas is high after the gasification, and the water cooling module is added for ensuring the safety of personnel, and the discharged gas is discharged out of the room after being cooled by the water cooling tank.
Substep S31: the first stage of the heating apparatus 50 is started, and the first control valve 82 and the second control valve 84 are controlled to communicate the filtering apparatus 30, the adsorption apparatus 40, and the air input pipe L4 with each other, only to make them, and to make a passage therebetween. The desorption air is preheated, the gas enters the filtering equipment 30 to carry out reverse blowing through the adsorption equipment 40, and the dust enters the lower end dust hopper after the reverse blowing, so that the dust is collected.
Substep S32: when the temperature of the heating air rises to a preset value, the heating device 50 is turned on in the second gear, the temperature continues to rise, and when the first temperature is detected to be greater than or equal to 80 ℃ or the second temperature is detected to be greater than or equal to 60 ℃, the first control valve 82, the second control valve 84, and the third control valve 88 (in the example where the third control valve 88 is provided) are controlled to communicate the catalytic burner 60, the adsorption device 40, and the air input pipe L4 with each other. The adsorption device 40 is formally desorbed, the heating element in the catalytic burner 60 is automatically turned on, the exhaust gas is heated and then catalytically oxidized into H2O and CO2 by the catalyst, the exhaust gas is cooled by the water storage device 70 and then discharged out of the room through a pipeline, and the desorption time is 3 hours.
Substep S33: when the temperature of the adsorption apparatus 40 is greater than or equal to 120 deg.c, the water delivery control valve 85 is opened, the remaining valves are closed, and the second fan 83/heating apparatus 50 is abruptly stopped. Water from the reservoir 70 is sprayed onto the adsorbent in the adsorption apparatus 40 until the temperature in the adsorption apparatus 40 is less than or equal to 30 ℃, the sprayed water is collected by the lower end tank, and the system is shut down.
Step S40: when the device is required for exhaust gas collection, steps 10 to 30 are repeated.
The beneficial effects of the invention include:
1. the invention solves the problems of large volume and incapability of moving of the waste gas treatment device, and the movable device provides an effective method for collecting and treating the waste gas discharged in an unorganized manner and in a small spraying place or an operation platform. The problems that the inorganically discharged waste gas source is difficult to collect and control and the small spraying equipment cannot be provided with an effective waste gas treatment device are solved, and the investment cost of the device is reduced; water-cooling protection, movable, automatic purging and simple-operation organic waste gas treatment device
2. The invention adopts water cooling protection to reduce the temperature of the waste gas outlet, avoids personnel harm caused by high-temperature gas discharge, has a comprehensive and efficient control system, avoids the problem that the prior part of wastewater treatment devices are not safe and complete, and has better safety and operability.
3. The automatic purging device has an automatic purging function, and the system automatically purges when the pressure difference between two ends of the filtering equipment reaches a set value, so that the phenomenon that the filtering equipment is blocked due to long-term dust deposition is avoided, and the system efficiency is improved.
4. The invention has two major unit modules of adsorption and desorption, and the adsorption material can be repeatedly utilized, thereby reducing the phenomenon of resource waste, reducing the times of solid waste treatment to the maximum extent and better promoting the development of the environment-saving and environment-friendly society.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "part," "member," and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (14)
1. An exhaust gas treatment device, comprising:
the device comprises a device body, a handle and a handle, wherein the device body is provided with a walking part;
the air collecting cover is arranged on the device body and is used for collecting waste gas;
the filtering equipment is arranged in the device body and is connected with the air collecting cover so as to receive and filter the waste gas;
the adsorption equipment is arranged in the device body, a first gas port of the adsorption equipment is connected with the filtering equipment, and a second gas port of the adsorption equipment is communicated with the external environment through a first exhaust pipe; and
an air input duct in communication with an ambient environment and for delivering air to the filter apparatus to purge the filter apparatus.
2. The exhaust gas treatment device of claim 1, wherein a heating device is disposed on the air input pipe to heat air, and the air input pipe is connected to the second gas port of the adsorption device, so that the adsorption device is desorbed by the heated air.
3. The exhaust gas treatment device of claim 2, further comprising a catalytic burner for treating the desorbed gas, an inlet of the catalytic burner being connected to the first gas port of the adsorption apparatus and an outlet of the catalytic burner being in communication with the external environment.
4. An exhaust gas treatment device according to claim 3, wherein a first control valve is provided in a line connected to the first gas port of the adsorption means, the first control valve being selectively in communication with the outlet of the filtering means or the gas inlet of the catalytic burner.
5. The exhaust gas treatment apparatus of claim 4, wherein the first control valve is configured to communicate the first gas port of the adsorption device and the outlet of the filtering device in an adsorption treatment state.
6. The exhaust gas treatment apparatus according to claim 4, wherein the first control valve is configured to communicate the first gas port of the adsorption device and the gas inlet port of the catalytic combustor in a desorption treatment state.
7. The exhaust gas treatment apparatus according to claim 4, characterized in that the control unit of the exhaust gas treatment apparatus is configured to communicate the adsorption device and the catalytic combustor by controlling the first control valve in response to a first temperature at the outlet of the heating device or in response to a second temperature of the adsorption device in a desorption treatment state.
8. The exhaust gas treatment device of claim 3, further comprising a water reservoir, the gas outlet of the catalytic burner being in communication with the ambient environment through a second exhaust pipe extending through the water reservoir to cool gas emitted through the second exhaust pipe.
9. The exhaust gas treatment device according to claim 2, wherein a second control valve is provided on a pipe connected to the second gas port of the adsorption apparatus, the second control valve being selectively communicated with the air input pipe or the first exhaust pipe.
10. The exhaust gas treatment apparatus according to claim 9, wherein the second control valve is configured to communicate the second gas port of the adsorption device and the first exhaust pipe in an adsorption treatment state.
11. The exhaust gas treatment apparatus according to claim 9, wherein the second control valve is configured to communicate the second gas port of the adsorption device and the air input pipe in a desorption process or a purge process state.
12. The exhaust gas treatment apparatus according to claim 2, further comprising a water reservoir connected to the adsorption device through a water pipe provided with a water-delivery control valve.
13. The exhaust gas treatment apparatus according to claim 12, wherein the control unit of the exhaust gas treatment apparatus is configured to communicate the adsorption device and the water reservoir by controlling the water delivery control valve in response to the third temperature of the adsorption device in the desorption treatment state.
14. An exhaust gas treatment device according to claim 12, wherein a fan is arranged on the air inlet line, and the control unit of the exhaust gas treatment device is configured to deactivate the heating means and/or the fan in response to the third temperature of the adsorption means in a desorption process state.
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