A rotary RTO device with online filter replacement

Abstract

This utility model relates to the field of waste gas treatment technology, and in particular to a rotary RTO device for online filter replacement. It includes a support frame, on which an air inlet hood, a filter assembly, and an air extraction assembly are mounted. The air inlet hood is mounted on the support frame. The filter assembly includes a filter cover, a mounting base, a filter element assembly, and a rotary drive component. The filter cover is mounted on the air inlet hood, and the mounting base is mounted in the filter cover via a rotating shaft. Multiple mounting positions are evenly arranged in the mounting base for installing filter element assemblies. Compared to existing technologies, the baffle and mounting base can independently isolate individual mounting positions. An opening the same size as the mounting position allows the user to easily remove filter element assemblies that have adsorbed a large amount of impurities. During replacement, the remaining filter element assemblies remain in the filter cover and continue to participate in the waste gas filtration process.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a rotary RTO device for online filter replacement. Background Technology

[0002] RTO stands for Regenerative Thermal Oxidizer, which is mainly used to treat industrial waste gas, especially VOCs. It can decompose combustible waste gas into oxides and water in a high-temperature environment and recover the heat generated during the decomposition of waste gas. Compared with traditional waste gas treatment devices, RTO has a higher purification effect.

[0003] Although RTOs have a better purification effect on waste gas, the treated waste gas still contains some large particulate impurities and tar pollutants. If these impurities are emitted directly, they will still pollute the air. Therefore, a waste gas treatment device is usually connected after the RTO to filter the decomposed waste gas.

[0004] Existing exhaust gas filtration devices can filter large particulate impurities and tar in exhaust gas by relying on filter elements. However, after working for a long time, too many impurities accumulate in the filter elements, and the filtration effect will be greatly reduced. Therefore, the staff needs to replace the filter elements regularly. During the replacement of the filter elements, the filtration device usually needs to be shut down, which will interfere with the exhaust gas emission. Utility Model Content

[0005] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a rotary RTO device for online filter replacement, which aims to solve the problem that existing RTO exhaust gas filtration equipment requires shutdown during filter replacement, affecting the exhaust gas treatment efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rotary RTO device for online filter replacement includes a support frame. An air inlet hood, a filter assembly, and an air extraction assembly are mounted on the support frame. The air inlet hood is mounted on the support frame. The filter assembly includes a filter cover, a mounting base, a filter element assembly, and a rotary drive component. The filter cover is mounted on the air inlet hood. The mounting base is mounted in the filter cover via a rotating shaft. Multiple mounting positions are evenly arranged in the mounting base for mounting the filter element assembly. The rotary drive component is mounted on the filter cover and drives the mounting base to rotate within the filter cover. An opening is provided on the side wall of the filter cover, and a sealing door is installed at the opening. The size of the opening is the same as the size of the mounting position. Baffles are provided above and below the opening, and the baffles fit the upper and lower sides of the mounting base. The air extraction assembly is mounted above the filter cover to accelerate airflow through the filter element assembly.

[0008] Preferably, the mounting base is provided with eight sets of mounting positions evenly arranged, and a partition is provided between each set of mounting positions.

[0009] Preferably, the filter cover has a perforated layer on its side wall, and multiple sets of air supply pipes are evenly installed in the perforated layer. The air supply pipes are used to connect the inside of the filter cover with the outside. Multiple sets of one-way valves are evenly installed in the air supply pipes.

[0010] Preferably, the mounting base is provided with a locking ring, the filter element assembly is provided with a fastening groove corresponding to the locking ring, the cross-section of the fastening groove is L-shaped, and a gripping part is provided on the outside of the filter element assembly.

[0011] Preferably, the air extraction assembly includes an outer cover, an air extraction drive component, and air extraction fan blades. The outer cover is installed above the filter cover, and the air extraction drive component is installed inside the outer cover. The air extraction drive component is used to drive the air extraction fan blades to rotate.

[0012] Preferably, an air vent is installed above the outer cover.

[0013] Preferably, the air intake hood is provided with an air inlet, and the bottom of the air intake hood is provided with a removable waste tray.

[0014] Preferably, the bottom of the air intake hood is provided with a protrusion, the waste tray is provided with an L-shaped groove corresponding to the protrusion, and a sealing gasket is provided between the waste tray and the air intake hood.

[0015] In summary, the beneficial effects of this utility model are as follows:

[0016] The rotary RTO device for online filter replacement provided by this utility model, compared with the prior art, allows the baffle and mounting base to independently isolate a single mounting position. The opening, which is the same size as the mounting position, makes it convenient for the user to remove the filter element group that has adsorbed a large number of impurities. During the replacement, the remaining filter element group remains in the filter cover and continues to participate in the filtration of exhaust gas. Attached Figure Description

[0017] Figure 1 This is a three-dimensional sectional view of the present invention;

[0018] Figure 2 This is an exploded view of the air intake shroud in this utility model;

[0019] Figure 3 This is a perspective view of the filter component in this utility model;

[0020] Figure 4 This is a cross-sectional view of the filter component in this utility model;

[0021] Figure 5 This is a three-dimensional sectional view of the filter cover in this utility model;

[0022] Figure 6 yes Figure 5 A magnified view of part A in the middle;

[0023] Figure 7 This is a cross-sectional view of the air supply pipe in this utility model;

[0024] Figure 8 This is a three-dimensional sectional view of the mounting base in this utility model;

[0025] Figure 9 This is a three-dimensional sectional view of the air extraction component in this utility model.

[0026] Explanation of the reference numerals in the figure:

[0027] 1. Bracket; 2. Inlet hood; 20. Inlet port; 21. Waste tray; 22. L-shaped groove; 23. Protrusion; 3. Filter assembly; 30. Filter cover; 300. Opening; 301. Baffle; 302. Sealing door; 303. Perforated layer; 31. Mounting base; 310. Mounting position; 311. Partition; 312. Locking ring; 32. Filter cartridge assembly; 320. Fastening groove; 321. Grip; 33. Rotary drive component; 4. Air extraction assembly; 40. Outer cover; 41. Air extraction drive component; 42. Air extraction fan blade; 43. Exit hood; 5. Air supply pipe; 50. One-way valve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0029] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0030] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0031] The following is in conjunction with the appendix Figure 1-9 The present invention provides a more detailed description of an embodiment of a rotary RTO device for online filter replacement.

[0032] A rotary RTO device for online filter replacement, such as Figure 1 , 2 As shown, the system includes a bracket 1, on which an air intake hood 2, a filter assembly 3, and an air extraction assembly 4 are mounted. The air intake hood 2 is mounted on the bracket 1. The filter assembly 3 includes a filter cover 30, a mounting base 31, a filter element assembly 32, and a rotary drive component 33. The filter cover 30 is mounted on the air intake hood 2. The mounting base 31 is mounted in the filter cover 30 via a rotating shaft. Multiple mounting positions 310 are evenly arranged in the mounting base 31 for mounting the filter element assembly 32. The rotary drive component 33 is mounted on the filter cover 30 and is used to drive the mounting base 31 to rotate within the filter cover 30. An opening 300 is provided on the side wall of the filter cover 30, and a sealing door 302 is installed at the opening 300. The size of the opening 300 is the same as the size of the mounting position 310. Baffles 301 are provided above and below the opening 300, and the baffles 301 fit with the upper and lower sides of the mounting base 31. The air extraction assembly 4 is installed above the filter cover 30 to accelerate the airflow through the filter element assembly 32.

[0033] In this embodiment, eight sets of mounting positions 310 are evenly arranged on the mounting base 31, and a partition 311 is provided between each set of mounting positions 310.

[0034] With the above design, during filtration, the rotary drive 33 controls the mounting base 31 to rotate. The rotating mounting base 31 drives the filter element assembly 32 to rotate within the filter cover 30. The eight filter element assemblies 32 sequentially pass the positions of the baffles 301. The baffles 301 and the partitions 311 can form a space independent of the filter cover 30. When the filter element assembly 32 rotates into the isolated independent space, this assembly does not participate in the filtration work. During this period, the filter element assembly 32 can be cooled down, thereby extending its service life. After a certain period of cooling down, the filter element assembly 32 slowly rotates out of the independent space under the drive of the rotary drive 33 and returns to the filter cover 30 to continue participating in the filtration work. Meanwhile, another filter element assembly will be driven by the rotary drive 33 to turn towards the independent space aligned with the opening 300 and continue to wait for cooling. When the filter element group 32 needs to be replaced, the operator can open the sealing door 302 when the installation position 310 turns to the opening 300, take out the filter element group 32 and replace it. Due to the isolation effect of the baffle 301 and the partition 311, the high-level exhaust gas in the filter cover 30 will not affect the operator at the opening 300. The remaining filter element groups 32 will still participate in the filtration operation in the filter cover 30, avoiding downtime during the replacement of the filter element group 32 and affecting the normal emission operation.

[0035] In this embodiment, both the partition 311 and the baffle 301 are made of thermal insulation material, and the sealing door 302 is made of a high thermal conductivity alloy material.

[0036] In this embodiment, a perforated layer 303 is provided on the side wall of the filter cover 30, and multiple sets of air supply pipes 5 are evenly installed in the perforated layer 303. The air supply pipes 5 are used to connect the inside of the filter cover 30 with the outside. Multiple sets of one-way valves 50 are evenly arranged in the air supply pipes 5.

[0037] Through the above design scheme, the perforated layer 303 on the side wall of the filter cover 30 can play a role in heat insulation, preventing the outer surface temperature of the filter cover 30 from becoming too high. The exhaust gas discharged from RTO has a high temperature, and after long-term operation, the temperature of the filter element will also rise, which will affect the service life of the filter element assembly 32. The multiple sets of air supply pipes 5 in the perforated layer 303 can guide outside air into the filter cover 30, using the outside air to cool the filter element assembly 32, thereby extending the service life of the filter element assembly 32. The one-way valve 50 in the air supply pipe 5 can prevent gas backflow and prevent unfiltered exhaust gas from seeping out from the air supply pipe 5.

[0038] In this embodiment, a locking ring 312 is provided in the mounting base 31, and a fastening groove 320 corresponding to the locking ring 312 is provided on the filter element assembly 32. The cross-section of the fastening groove 320 is L-shaped, and a gripping part 321 is provided on the outside of the filter element assembly 32.

[0039] The grip 321 provides gripping points to facilitate the replacement of the filter element assembly 32. When installing the filter element assembly 32, the operator aligns the opening 300 of the fastening groove 320 with the locking ring 312 and inserts it. Under the action of gravity, the locking ring 312 can be engaged at the bottom of the fastening groove 320, fixing the filter element assembly 32 in the installation position 310. When it is necessary to remove the filter element assembly 32, the operator can use a tool to clamp the grip 321 and lift the filter element assembly 32 upwards to pull it out of the installation position 310. The disassembly and assembly process is relatively convenient, allowing the operator to quickly complete the replacement operation.

[0040] In this embodiment, the air extraction assembly 4 includes an outer cover 40, an air extraction drive 41, and an air extraction fan blade 42. The outer cover 40 is installed above the filter cover 30, and the air extraction drive 41 is installed in the outer cover 40. The air extraction drive 41 is used to drive the air extraction fan blade 42 to rotate.

[0041] Through the above design, the exhaust drive 41 can drive the exhaust fan blade 42 to actively extract the airflow inside the filter cover 30, thereby increasing the speed of the exhaust gas passing through the filter element assembly 32. At the same time, the exhaust fan blade 42 can also guide the flow of the exhaust gas, further increasing the speed of the outside air passing through the air supply pipe 5, ensuring that the outside air can continuously and stably cool the filter element assembly 32.

[0042] In this embodiment, both the suction drive 41 and the rotary drive 33 are high-temperature resistant motors. The suction drive 41 is directly connected to the suction fan blade 42, and the rotary drive 33 is connected to the mounting base 31 via a toothed chain. The air entering from the air supply pipe 5 mixes with the high-temperature exhaust gas in the filter assembly 32, thereby lowering the temperature of the exhaust gas and ensuring that the exhaust gas does not significantly affect the suction drive 41 when passing through the suction assembly 4.

[0043] In this embodiment, an exhaust hood 43 is installed above the outer cover 40. The exhaust hood 43 is used to guide the filtered exhaust gas and is connected to an exhaust pipe to guide the exhaust gas out.

[0044] In this embodiment, an air inlet 20 is provided on the air intake hood 2, and a removable waste tray 21 is provided at the bottom of the air intake hood 2.

[0045] With the above design, the air inlet 20 on the air inlet hood 2 is used to connect to the RTO incinerator, guiding the exhaust gas output from the RTO incinerator into the air inlet hood 2, and then into the filter assembly 3 for filtration. When the exhaust gas entering the air inlet hood 2 impacts the inner wall of the air inlet hood 2 and the filter element assembly 32, some large particles of impurities will fall due to loss of kinetic energy. The falling large particles of impurities are automatically collected into the waste tray 21 under the guidance of the air inlet hood 2, facilitating subsequent cleaning.

[0046] In this embodiment, a protrusion 23 is provided at the bottom of the air intake hood 2, and an L-shaped groove 22 corresponding to the protrusion 23 is provided on the waste tray 21. A sealing gasket is provided between the waste tray 21 and the air intake hood 2.

[0047] With the above design scheme, when installing the waste tray 21, the worker only needs to align the opening 300 of the L-shaped groove with the protrusion 23, push the waste tray 21 up, and then rotate the waste tray 21 horizontally so that the soil block is stuck into the deepest part of the L-shaped groove. The waste tray 21 can be fixed at the bottom of the air intake hood 2 by the cooperation of the L-shaped groove and the protrusion 23. When it is necessary to disassemble the waste tray 21 to clean the deposited impurities, the user only needs to rotate the waste tray 21 so that the protrusion 23 is aligned with the opening 300 of the L-shaped groove, and then move the waste tray 21 down to remove it, which facilitates the subsequent cleaning operation.

[0048] In this embodiment, the filter element assembly 32 is made of porous ceramic material.

[0049] The rotary RTO device for online filter replacement provided by this utility model, compared with the prior art, allows the baffle 301 and the mounting base 31 to independently isolate a single mounting position 310. The opening 300, which is the same size as the mounting position 310, allows the user to easily remove the filter element group 32 that has adsorbed a large number of impurities. During the replacement, the remaining filter element groups 32 are still in the filter cover 30 and continue to participate in the filtration of exhaust gas.

[0050] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotary RTO device for online filter replacement, comprising a support frame, characterized in that: The bracket is equipped with an air intake hood, a filter assembly, and an air extraction assembly. The air intake hood is mounted on the bracket. The filter assembly includes a filter cover, a mounting base, a filter element assembly, and a rotary drive component. The filter cover is mounted on the air intake hood. The mounting base is mounted in the filter cover via a rotating shaft. The mounting base has multiple evenly spaced mounting positions for mounting the filter element assembly. The rotary drive component is mounted on the filter cover and drives the mounting base to rotate within the filter cover. An opening is provided on the side wall of the filter cover, and a sealing door is installed at the opening. The size of the opening is the same as the size of the mounting position. Baffles are provided above and below the opening, and the baffles fit the upper and lower sides of the mounting base. The air extraction assembly is mounted above the filter cover to accelerate airflow through the filter element assembly.

2. The rotary RTO device for online filter replacement according to claim 1, characterized in that, The mounting base has eight sets of mounting positions evenly arranged, and a partition is provided between each set of mounting positions.

3. The rotary RTO device for online filter replacement according to claim 2, characterized in that, The filter cover has a perforated layer on its side wall, and multiple sets of air supply pipes are evenly installed in the perforated layer. The air supply pipes are used to connect the inside of the filter cover with the outside. Multiple sets of one-way valves are evenly installed in the air supply pipes.

4. The rotary RTO device for online filter replacement according to claim 3, characterized in that, The mounting base is provided with a locking ring, and the filter element assembly is provided with a fastening groove corresponding to the locking ring. The cross-section of the fastening groove is L-shaped, and a gripping part is provided on the outside of the filter element assembly.

5. The rotary RTO device for online filter replacement according to claim 4, characterized in that, The air extraction assembly includes an outer cover, an air extraction drive component, and air extraction fan blades. The outer cover is installed above the filter cover, and the air extraction drive component is installed inside the outer cover. The air extraction drive component is used to drive the air extraction fan blades to rotate.

6. The rotary RTO device for online filter replacement according to claim 5, characterized in that, An air vent is installed on top of the outer cover.

7. The rotary RTO device for online filter replacement according to claim 6, characterized in that, The air intake hood is provided with an air inlet, and a removable waste tray is provided at the bottom of the air intake hood.

8. The rotary RTO device for online filter replacement according to claim 7, characterized in that, The bottom of the air intake hood is provided with a protrusion, and the waste tray is provided with an L-shaped groove corresponding to the protrusion. A sealing gasket is provided between the waste tray and the air intake hood.

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