Waste gas treatment device and asphalt batching kettle

Abstract

The utility model provides a waste gas treatment device and an asphalt batching kettle. The waste gas treatment device comprises a shell which comprises a hollow part, a gas inlet and a gas outlet which are communicated with one another; the smoke filter is arranged in the hollow part and detachably connected to the shell, the smoke filter is arranged in the hollow part and detachably connected to the shell, and the smoke filter comprises a first channel and a second channel which are arranged side by side in the first direction and alternately distributed; to-be-filtered gas entering the first channel from the gas inlet enters the second channels after being filtered, and gas in the second channels is collected and discharged from the gas outlet; the self-cleaning component comprises a vibration mechanism and a gas back-blowing mechanism, the flue gas filter is cleaned through the vibration mechanism and the gas back-blowing mechanism, and the vibration mechanism is connected with the shell and can vibrate the flue gas filter; and the gas back-blowing mechanism is communicated with the second channel and can provide blowing gas for the flue gas filter. According to the waste gas treatment device, the self-cleaning capacity can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waterproof engineering of industrial and civil buildings, and particularly relates to a waste gas treatment device and an asphalt batching kettle. BACKGROUND

[0002] In the coating material production process, in order to achieve the product attribute index, stone powder, glue powder and other materials need to be put into the batching kettle from the feeding port. The dust generated in the process of putting in the stone powder and glue powder adheres to the filter assembly in the filter device along with the airflow. The waste gas containing oil mist, stone powder and glue powder is filtered and intercepted when passing through the filter assembly in the filter device, and the waste gas with most of the stone powder and glue powder removed passes through.

[0003] The resistance of the filter plate after adhering to the dust increases, resulting in a decrease in the effect of the induced draft. The self-cleaning ability of some self-cleaning devices is poor, and manual cleaning is still required regularly. CONTENT OF THE UTILITY MODEL

[0004] The waste gas treatment device and the asphalt batching kettle provided by the embodiments of the present application can improve the self-cleaning ability.

[0005] In a first aspect, the embodiments of the present application provide a waste gas treatment device, which comprises: a shell comprising a hollow portion, an air inlet and an air outlet which are in communication with each other; a flue gas filter which is arranged in the hollow portion and is detachably connected to the shell, the flue gas filter comprising first channels and second channels which are arranged side by side along a first direction and are alternately distributed, the first channels being used for conveying unfiltered gas, the second channels being used for conveying filtered gas, the unfiltered gas entering the first channels through the air inlet being filtered and then entering the second channels, the gas in each second channel being collected and discharged through the air outlet; and a self-cleaning component comprising a vibration mechanism and a gas backflushing mechanism, the self-cleaning component being capable of cleaning the flue gas filter through the vibration mechanism and the gas backflushing mechanism, the vibration mechanism being connected to the shell and being capable of vibrating the flue gas filter, the gas backflushing mechanism being in communication with the second channels and being capable of providing purge gas to the flue gas filter.

[0006] According to the embodiments of the first aspect of the present application, the flue gas filter comprises a frame assembly and a filter screen, the frame assembly comprising first frame units and second frame units which are alternately distributed along the first direction, the filter screen being detachably arranged between the first frame units and the second frame units to form the first channels and the second channels in intervals, the first frame units corresponding to the first channels, and the second frame units corresponding to the second channels.

[0007] According to the embodiments of the first aspect of the present application, the first frame units comprise top walls and first hollow parts which are opposite in a second direction, the second frame units comprise bottom walls and second hollow parts which are opposite in the second direction, the top walls and the bottom walls are connected to each other in orthographic projection in the second direction to form a continuous surface, and the second direction is perpendicular to the first direction.

[0008] According to the embodiment of the first aspect of the present application, the electromagnetic pulse valve is connected with at least one of the vibration mechanism and the air back-flushing mechanism to control the vibration mechanism to vibrate at a preset time interval and / or the air back-flushing mechanism to back-flush air at a preset time interval.

[0009] According to the embodiment of the first aspect of the present application, the filter screen is in a flat plate shape.

[0010] According to the embodiment of the first aspect of the present application, the side wall of the shell has at least one opening and a cover plate, which are arranged to be openable and closable for use when the filter screen is disassembled.

[0011] According to the embodiment of the first aspect of the present application, a handle is arranged on the filter screen, and the handle is located corresponding to the opening to facilitate pulling the handle when the opening is open.

[0012] According to the embodiment of the first aspect of the present application, the cross-sectional shape of the side wall of the shell in the extension direction thereof is rectangular.

[0013] According to the embodiment of the first aspect of the present application, the shell has a first section and a second section connected with each other between the air inlet and the air outlet, the second section is connected with the air outlet, and the second section has a tendency to shrink towards the air outlet; the air back-flushing mechanism blows air towards the flue gas filter at the second section.

[0014] In the second aspect, the present application provides an asphalt batching kettle, which comprises the above-mentioned waste gas treatment device, a kettle body, and a stirring device, the stirring device is arranged in the kettle body, the waste gas treatment device is arranged above the kettle body, and the air inlet is communicated with the kettle body.

[0015] The waste gas treatment device in the embodiment of the present application is provided with a shell, a flue gas filter, and a self-cleaning component; the flue gas filter arranged in the hollow part of the shell filters the flue gas entering from the air inlet, so that the particulate matters in the flue gas are filtered and agglomerated on the flue gas filter, and the relatively clean gas components are output from the air outlet; the particulate matters in the flue gas adhered on the flue gas filter are shaken down and blown off by the compressed gas through the vibration mechanism and the air back-flushing mechanism in the self-cleaning component, so that the waste gas treatment device realizes self-cleaning and prolongs the disassembly and cleaning interval; at the same time, the flue gas filter is detachably connected with the shell, so that the flue gas filter can be conveniently taken out for cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other characteristics, objects and advantages of the present application will become more apparent from the following detailed description of non-restrictive embodiments, with reference to the attached drawings, in which the same or similar reference signs refer to the same or similar features.

[0017] Figure 1 FIG. 1 is a structural schematic diagram of a waste gas treatment device provided by an embodiment of the present application;

[0018] Figure 2 is an explosion schematic diagram of the waste gas treatment device provided by the embodiment of the present application;

[0019] Figure 3 is a waste gas flow direction schematic diagram of the waste gas treatment device provided by the embodiment of the present application;

[0020] Figure 4 is a structure schematic diagram of the frame assembly in the waste gas treatment device provided by the embodiment of the present application.

[0021] Legend:

[0022] 10, shell; 11, hollow part; 12, air inlet; 13, air outlet; 14, opening; 15, cover plate; 16, first section; 17, second section;

[0023] 21, first channel; 22, second channel; 23, frame assembly; 231, top wall; 232, first hollow part; 233, bottom wall; 234, second hollow part; 24, filter screen; 241, handle;

[0024] 30, self-cleaning component; 31, vibration mechanism; 32, gas backflushing mechanism; 321, gas storage tank; 322, connecting pipeline; 323, gas nozzle;

[0025] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0026] Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, well-known structures and techniques have not been shown in order to avoid unnecessary obscurity of the present application; and, for clarity, the size of some structures can be exaggerated. In addition, the features, structures or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0027] In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the specific structure of the embodiments of the present application. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the production process, in order to achieve the product attribute index, it is necessary to put stone powder, glue powder and other materials from the feeding port of the batching kettle. The dust generated in the process of putting stone powder and glue powder into the filter device with air flow and adheres to the filter plate. The filter plate after adhering dust has large resistance, which leads to the decrease of the air draft effect. The amount of dust generated directly affects the plugging time of the filter plate. When replacing the filter plate, it must be taken out and cleaned. Frequent replacement of the filter plate increases the labor intensity of workers. With the factors such as cooling after the filter plate is taken out, the filtered material on the surface will solidify, the cleaning process is complicated, and the labor intensity of workers is large.

[0030] In order to solve the above problems, the embodiments of the present application provide a multi-layer gluing device and a waterproof roll production equipment, which can form multiple glue layers in one production process, so that the number of glue layers can be selectively increased, which is beneficial to reduce the production cost.

[0031] In the first aspect, please refer to Figures 1 to 4The embodiment of the present application provides a waste gas treatment device, which comprises: a shell 10 comprising a hollow part 11, an air inlet 12 and an air outlet 13 which are communicated with each other; a flue gas filter which is arranged in the hollow part 11 and is detachably connected to the shell 10, wherein the flue gas filter comprises first channels 21 and second channels 22 which are arranged side by side along a first direction X and are alternately distributed, the first channels 21 are used for conveying the gas to be filtered, the second channels 22 are used for conveying the filtered gas, the gas to be filtered which enters the first channels 21 from the air inlet 12 enters the second channels 22 after being filtered, and the gas in each second channel 22 is collected and discharged from the air outlet 13; a self-cleaning component 30 comprising a vibration mechanism 31 and a gas backflushing mechanism 32, the self-cleaning component 30 performs cleaning treatment on the flue gas filter through the vibration mechanism 31 and the gas backflushing mechanism 32, the vibration mechanism 31 is connected with the shell 10 and can vibrate the flue gas filter, and the gas backflushing mechanism 32 is arranged in communication with the second channels 22 and can provide purge gas to the flue gas filter.

[0032] When the waste gas is treated, the waste gas enters the hollow part 11 of the shell 10 from the air inlet 12 of the shell 10, the hollow part 11 is provided with the flue gas filter which is used for filtering the flue gas, the particulate matters in the flue gas are filtered and left by the flue gas filter, and the relatively clean gas components in the flue gas are output from the air outlet 13 of the shell 10 after the waste gas is filtered by the flue gas filter.

[0033] Exemplarily, the waste gas comprises particulate matters such as oil mist, stone powder and rubber powder, and the particulate matters are filtered and caked on the flue gas filter after the filtering action of the flue gas filter.

[0034] The flue gas filter is detachably connected to the shell 10, which can be that the flue gas filter as a whole is detachable or that part of the components of the flue gas filter is detachable, so that the flue gas filter can be conveniently taken out and cleaned.

[0035] Specifically, the flue gas filter comprises the first channels 21 and the second channels 22, the gas to be filtered which enters the hollow part 11 from the air inlet 12 first enters the first channels 21 of the flue gas filter, the first channels 21 are used for conveying the gas to be filtered, the gas enters the second channels 22 after being filtered, the second channels 22 are used for conveying the filtered gas, and the gas in each second channel 22 is collected and discharged from the air outlet 13.

[0036] Please refer to Figure 2 and Figure 4 , the first channels 21 and the second channels 22 are arranged side by side along the first direction X and are alternately distributed, exemplarily, as Figure 1As shown, the first direction X is a direction perpendicular to the air inlet 12 and pointing to the air outlet 13, the first channel 21 is flanked by the second channel 22 in the direction of the air inlet 12 pointing to the air outlet 13, and the first channel 21 in the middle position is flanked by the second channel 22 on both sides in the direction of the air inlet 12 pointing to the air outlet 13; the second channel 22 is flanked by the first channel 21 in the direction of the air inlet 12 pointing to the air outlet 13, and the second channel 22 in the middle position is flanked by the first channel 21 on both sides in the direction of the air inlet 12 pointing to the air outlet 13. The parallel arrangement and alternating distribution can improve the space utilization and facilitate the filtration of a large amount of flue gas.

[0037] The self-cleaning component 30 in the embodiment of the present application comprises a vibration mechanism 31 and a gas backflushing mechanism 32. The vibration mechanism 31 is connected to the shell 10, and the vibration mechanism 31 can drive the shell 10 to vibrate, thereby driving the flue gas filter to vibrate. Under the action of vibration, the particulate matters such as oil mist, stone powder and rubber powder left after filtration in the flue gas filter are shaken off and fall back into the kettle body. The gas backflushing mechanism 32 is in communication with the second channel 22 and can provide a sweeping gas to the flue gas filter. The compressed gas released by the gas backflushing mechanism 32 impacts outward from the second channel 22, thereby reducing the adhesion effect of the particulate matters and making it easier for the agglomerated particulate matters to fall off and be backflushed. Specifically, the gas backflushing mechanism 32 sweeps the gas to the second channel 22.

[0038] The self-cleaning component 30 can clean the flue gas filter by the vibration mechanism 31 and the gas backflushing mechanism 32. The oil stains and particulate matters adhered to the flue gas filter are blown away or shaken off the surface of the flue gas filter by the airflow.

[0039] In some embodiments, referring to Figure 1 , the gas backflushing mechanism 32 comprises a gas storage tank 321, a connecting pipeline 322 and a gas nozzle 323. The connecting pipeline 322 is in communication with the gas storage tank 321 and the gas nozzle 323, respectively. The gas nozzle 323 is in communication with the hollow part 11. When the gas backflushing mechanism 32 is in a working state, the gas in the gas storage tank 321 enters the connecting pipeline 322, and then the gas is swept to the hollow part 11 through the gas nozzle 323.

[0040] The embodiment of the present application does not limit the specific composition of the gas in the gas backflushing mechanism 32, which can be air or nitrogen, etc. Preferably, the sweeping gas is compressed air, which is low in cost.

[0041] The vibration mechanism 31 and the gas backflushing mechanism 32 can be turned on at the same time, that is, the compressed gas is blown to the flue gas filter while the vibration mechanism 31 is vibrating. The particulate matters in the flue gas adhered to the flue gas filter are shaken off and then blown off by the compressed gas, which makes it easier for the agglomerated particulate matters to fall off and be backflushed, thereby achieving a better self-cleaning effect.

[0042] The vibration mechanism 31 and the gas backflushing mechanism 32 can also be started at different times, for example, the vibration mechanism 31 is started for a longer time than the gas backflushing mechanism 32, and when the gas backflushing mechanism 32 is temporarily resting, the vibration mechanism 31 is still vibrating; or the gas backflushing mechanism 32 is started for a longer time than the vibration mechanism 31, and when the vibration mechanism 31 is temporarily resting, the gas backflushing mechanism 32 is still blowing gas.

[0043] The vibration mechanism 31 and the gas backflushing mechanism 32 can be intermittently operated, so that the vibration mechanism 31 can be prevented from overheating, and the gas backflushing mechanism 32 can be replenished with gas. The vibration mechanism 31 and the gas backflushing mechanism 32 can be alternately operated, so that the self-cleaning component 30 is always in an operating state, and the waste gas treatment device is always performing self-cleaning work, which is beneficial to prolong the disassembly and cleaning interval.

[0044] In summary, the waste gas treatment device in the embodiment of the present application is provided with a shell 10, a flue gas filter and a self-cleaning component 30; the flue gas filter arranged in the hollow part 11 of the shell 10 filters the flue gas entering from the gas inlet 12, so that the particulate matter in the flue gas is filtered and agglomerated on the flue gas filter, and the relatively clean gas components are output from the gas outlet 13; the vibration mechanism 31 and the gas backflushing mechanism 32 in the self-cleaning component 30 make the particulate matter in the flue gas attached to the flue gas filter fall off by vibration and compressed gas, so that the waste gas treatment device realizes self-cleaning and prolongs the disassembly and cleaning interval; at the same time, the flue gas filter is detachably connected with the shell 10, so that the flue gas filter can be easily taken out for cleaning.

[0045] In some embodiments, referring to Figure 2 and Figure 4 , the flue gas filter includes a frame assembly 23 and a filter screen 24, the frame assembly 23 includes first frame units and second frame units alternately distributed along the first direction X, and the filter screen 24 is detachably arranged between the first frame units and the second frame units to form first channels 21 and second channels 22, the first frame units correspond to the first channels 21, and the second frame units correspond to the second channels 22.

[0046] The frame assembly 23 and the filter screen 24 jointly constitute the flue gas filter, and the filter screen 24 is detachably connected to the frame assembly 23. Specifically, the frame assembly 23 includes first frame units and second frame units alternately distributed along the first direction X, and the filter screen 24 is arranged between the first frame units and the second frame units, the filter screen 24 and the first frame units enclose the first channels 21, and the filter screen 24 and the second frame units enclose the second channels 22.

[0047] The exhaust gas to be treated enters the shell 10 of the exhaust gas treatment device from the gas inlet 12, first enters the first channel 21, and then enters the second channel 22 after being filtered by the filter screen 24. Finally, the exhaust gas exits the shell 10 of the exhaust gas treatment device through the gas outlet 13.

[0048] The filter screen 24 is detachably connected to the frame assembly 23, which facilitates the disassembly and removal of the filter screen 24 for cleaning.

[0049] In some embodiments, the first frame unit includes a top wall 231 and a first hollow portion 232 opposite in the second direction Y, and the second frame unit includes a bottom wall 233 and a second hollow portion 234 opposite in the second direction Y. The top wall 231 and the bottom wall 233 are connected to each other in the second direction Y to form a continuous surface.

[0050] As shown in the drawings, the first frame unit includes a top wall 231 and a first hollow portion 232 opposite in the second direction Y. The first hollow portion 232 allows the exhaust gas to pass through, and then the exhaust gas to be filtered enters the first channel 21. The top wall 231 can block the exhaust gas, so that the direction of the exhaust gas changes and passes through the filter screen 24 on both sides to complete the filtration. The second frame unit includes a bottom wall 233 and a second hollow portion 234 opposite in the second direction Y. The bottom wall 233 can block the exhaust gas entering the second channel 22, so that the filtered exhaust gas moves towards the second hollow portion 234, and is finally discharged by the gas outlet 13 after passing through the second hollow portion 234. The frame assembly 23 arranged in this way plans the running route of the exhaust gas in the flue gas filter, and can fully utilize the space of the hollow portion 11 to filter the exhaust gas. The flow direction of the exhaust gas is shown by the arrows in Figure 3 , Figure 3 The arrows in the middle indicate the direction of the exhaust gas flow.

[0051] Please refer to Figure 4 , the top wall 231 includes a plurality of spaced-apart portions, and the bottom wall 233 includes a plurality of spaced-apart portions. The plurality of top walls 231 and the plurality of bottom walls 233 are alternately distributed along the first direction X and are connected to each other in the second direction Y.

[0052] The space between the plurality of bottom walls 233 forms a plurality of first hollow portions 232, which are used to allow the exhaust gas to be filtered to pass through in several branches and enter the first channel, thereby improving the filtering efficiency. The space between the plurality of top walls 231 forms a plurality of second hollow portions 234, which allow the filtered exhaust gas to converge and be output by the gas outlet 13.

[0053] The plurality of top walls 231 and the plurality of bottom walls 233 are alternately distributed along the first direction X, so that the first frame units have a plurality, the second frame units have a plurality, and the filter screen 24 has a plurality. The arrangement in which the plurality of top walls 231 and the plurality of bottom walls 233 are in close connection with each other in the projection along the second direction Y makes full use of the space of the hollow part 11, and can reasonably arrange and fully filter in a limited space.

[0054] Exemplarily, the number of bottom walls 233 can be two, three, four, five or more; and the number of top walls 231 can be two, three, four, five or more.

[0055] In some embodiments, the exhaust gas treatment device further comprises an electromagnetic pulse valve connected with at least one of the vibration mechanism 31 and the air backflushing mechanism 32 to control the vibration mechanism 31 to vibrate and / or the air backflushing mechanism 32 to backflush air at a preset time interval.

[0056] The electromagnetic pulse valve is connected with the vibration mechanism 31 to control the vibration mechanism 31 to vibrate at a preset time interval; and the electromagnetic pulse valve is connected with the air backflushing mechanism 32 to control the air backflushing mechanism 32 to backflush air at a preset time interval.

[0057] The electromagnetic pulse valve can be connected with both the vibration mechanism 31 and the air backflushing mechanism 32, or can be connected with only one of them, and can be manually or time-triggered to start the electromagnetic pulse valve.

[0058] The specific time interval can be set by the factory or set by the user as needed.

[0059] The filter screen 24 in the present application can have various shapes as long as it can form the first channel 21 and the second channel 22 after being combined with the first frame unit and the second frame unit, such as a flat plate, a curved surface, a column, etc., wherein the column-shaped filter screen 24 can have a circular or elliptical cross-sectional shape in the radial direction thereof.

[0060] In some embodiments, the filter screen 24 is in the shape of a flat plate. The flat plate-shaped filter screen 24 is convenient to slide and disassemble between the first frame unit and the second frame unit.

[0061] In some embodiments, the side wall of the housing 10 has at least one opening 14 and a cover plate 15, which are arranged to be openable and closable for use when the filter screen 24 is disassembled.

[0062] When in working state, the cover plate 15 is buckled at the opening 14, the side wall of the shell 10 is in a sealed state, and leakage of exhaust gas is prevented; when the filter screen 24 needs to be disassembled and cleaned, the cover plate 15 is opened, and the opening 14 of the side wall of the shell 10 is in an open state, so that the filter screen 24 can be operated at the opening 14 of the side wall.

[0063] The side wall extends in a direction parallel to the flow direction of the exhaust gas, so that the impact of the exhaust gas on the cover plate 15 is reduced. The opening 14 is arranged at the side wall of the shell 10, so that the disassembly process is more convenient, and the other components of the exhaust gas filtering device are not affected.

[0064] The application does not limit the opening and closing mode of the opening 14 and the cover plate 15. For example, the cover plate 15 can be fixed to the side wall by nuts to complete the sealing, and when the opening 14 is needed, all the nuts are removed to dismount the cover plate 15; or one side of the cover plate 15 is fixed to the side wall by a hinge, and the other side is fixed to the side wall by nuts to complete the sealing, and when the opening 14 is needed, the nuts of the other side are removed, and the opening 14 is opened by rotating the hinge.

[0065] Preferably, please refer to Figure 1 and Figure 2 A handle 241 can also be arranged on the cover plate 15 to facilitate the opening of the opening 14 by moving the cover plate 15.

[0066] In some embodiments, please refer to Figure 2 A handle 241 is arranged on the filter screen 24, and the handle 241 is located in correspondence with the opening 14, so that the handle 241 can be pulled conveniently when the opening 14 is opened.

[0067] The handle 241 is arranged on the filter screen 24, so that the filter screen 24 is more convenient to disassemble and assemble.

[0068] Preferably, the handle 241 on the filter screen 24 faces the direction perpendicular to the surface of the filter screen 24, and the handles 241 on two adjacent filter screens 24 are oppositely arranged, so that the filter screen 24 can be arranged as large as possible in the frame assembly 23.

[0069] In some embodiments, the cross-sectional shape of the side wall of the shell 10 in the extension direction thereof is rectangular.

[0070] The cross-sectional shape of the side wall of the shell 10 in the extension direction thereof in the application is square, so that the frame assembly 23 of the flue gas filter has a regular structure. For example, the cross-sectional shape is square or rectangular.

[0071] The cross-section of the side wall of the shell 10 in the extension direction thereof in the application can also have other shapes, such as a rounded rectangle, which is not limited in the application.

[0072] In some embodiments, the shell 10 has a first section 16 and a second section 17 connected to each other between the gas inlet 13 and the gas outlet 14, the second section 17 is connected to the gas outlet 13, and the second section 17 is tapered towards the gas outlet 13; the gas backflushing mechanism 32 blows gas towards the flue gas filter in the second section 17.

[0073] The first section 16 and the second section 17 of the shell 10 are connected to each other and enclose the hollow portion 11, and the flue gas filter is arranged in the hollow portion 17, preferably, the flue gas filter is arranged in the corresponding hollow portion 11 of the first section 16, wherein the second section 17 is tapered towards the gas outlet 13, that is, the second section 17 is at a preset angle with the first section 16, for example, the included angle between the second section 17 and the first section 16 is 120°-150°, and the gas backflushing mechanism 32 blows gas towards the flue gas filter in the second section 17, so that the blowing gas flows at an angle with the filtered gas flow, avoiding the collision, and the flue gas filter can perform self-cleaning work simultaneously when working. The vibration mechanism 31 can be connected to the first section 16 or the second section 17, preferably, the vibration mechanism is connected to the second section 17.

[0074] The waste gas treatment device in the embodiments of the present application can be applied to an asphalt batching kettle to treat the waste gas generated during the batching of the asphalt batching kettle, and can also be used in other device systems that need to treat waste gas.

[0075] In a second aspect, the embodiments of the present application provide an asphalt batching kettle, which comprises the above-mentioned waste gas treatment device, a kettle body, and a stirring device, the stirring device is arranged in the kettle body, and the waste gas treatment device is arranged above the kettle body, and the gas inlet is in communication with the kettle body.

[0076] The kettle body is a container for modifying asphalt, and during batching, the stirring device stirs the input asphalt and other powders used for modifying the asphalt, the waste gas treatment device is connected to the kettle body, the waste gas generated during the reaction enters the shell 10 of the waste gas treatment device through the gas inlet 12, is filtered by the flue gas filter, and when a certain amount of oil mist and dust is adhered to the outer surface of the filter cartridge 210, the self-cleaning component 30 can perform self-cleaning operation on the flue gas filter, so that the adhered oil mist and dust are blown off into the kettle body to continue to participate in the modification reaction of the asphalt. In addition to saving the operation of replacing the filter screen 24 multiple times, the filtered material can also be reused to avoid waste of reaction materials.

[0077] Although the present application has been described with reference to preferred embodiments, various modifications can be made to the application without departing from the scope of the application. In particular, the technical features mentioned in the various embodiments can be combined in any way, provided that there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An exhaust gas treatment device, characterized by, The application relates to a waste gas treatment device. The waste gas treatment device comprises a shell, a smoke gas filter and a self-cleaning component. The shell comprises a hollow part, an air inlet and an air outlet. The smoke gas filter is arranged in the hollow part and detachably connected to the shell.

2. The exhaust treatment device of claim 1, wherein, The smoke gas filter comprises first channels and second channels which are arranged in parallel and alternately distributed along a first direction.

3. The exhaust treatment device of claim 2, wherein, The first channels are used for conveying waste gas to be filtered.

4. The exhaust treatment device of claim 1, wherein, The second channels are used for conveying filtered gas.

5. The exhaust treatment device of claim 2, wherein, The waste gas to be filtered which enters the first channels is filtered and then enters the second channels.

6. The exhaust treatment device of claim 1, wherein, The filtered gas of each second channel is collected and discharged through the air outlet.

7. The exhaust treatment device of claim 6, wherein, The self-cleaning component comprises a vibration mechanism and a gas back-flushing mechanism.

8. The exhaust treatment device of claim 1, wherein, The vibration mechanism is connected to the shell and can vibrate the smoke gas filter.

9. The exhaust treatment device of claim 1, wherein, The gas back-flushing mechanism is in communication with the second channels and can provide flushing gas to the smoke gas filter.

10. An asphalt batcher characterized by, The smoke gas filter comprises a frame assembly and a filter screen. The frame assembly comprises first frame units and second frame units which are alternately distributed along the first direction. The filter screen is detachably arranged between the first frame units and the second frame units to form the first channels and the second channels. The first frame units correspond to the first channels. The second frame units correspond to the second channels. The first frame units comprise top walls and first hollow parts which are opposite in a second direction. The second frame units comprise bottom walls and second hollow parts which are opposite in the second direction. The top walls and the bottom walls are in continuous surface with each other in the second direction. The second direction is perpendicular to the first direction. The application further comprises an electromagnetic pulse valve. The electromagnetic pulse valve is connected to at least one of the vibration mechanism and the gas back-flushing mechanism. The vibration mechanism is controlled to vibrate at a preset time interval. The gas back-flushing mechanism is controlled to back-flush air at a preset time interval. The filter screen is in the shape of a flat plate. The shell has at least one opening and a cover plate on a side wall. The opening and the cover plate are arranged to be openable and closable for use when the filter screen is detached. A handle is arranged on the filter screen. The handle is located corresponding to the opening so as to facilitate pulling the handle when the opening is opened. The side wall of the shell is in the shape of a rectangle in the extending direction. The shell has a first section and a second section which are connected to each other between the air inlet and the air outlet. The second section is connected to the air outlet. The second section has a shrinkage trend towards the air outlet. The gas back-flushing mechanism blows flushing gas towards the smoke gas filter in the second section. The application further comprises a kettle body and a stirring device. The waste gas treatment device is arranged above the kettle body. The air inlet is in communication with the kettle body.

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