Catalyst pickling treatment device

Abstract

The invention relates to the technical field of catalyst treatment, and discloses a catalyst pickling treatment device which comprises a pickling tank and a catalyst body, a filter screen frame, a protective frame, an aeration pipe and a first connecting frame are arranged in the pickling tank, the filter screen frame is arranged on the outer side of the protective frame, and the protective frame covers the outer side of the aeration pipe; a second ventilation channel is formed in the first connecting frame and can open a cover plate arranged in a connecting cylinder on the protective frame, bubbles generated by an aeration pipe can enter the pickling tank through the connecting cylinder to clean the catalyst body, and when the cover plate covers the pickling tank, impurities generated after the catalyst body is cleaned are prevented from blocking the aeration pipe; the filter screen frame can prevent most impurities generated after the catalyst body is cleaned from blocking the aeration opening of the aeration pipe, the cover plate of the protective frame can further prevent impurities in the pickling tank from blocking the aeration opening of the aeration pipe through the filter screen frame, and normal work of the aeration pipe is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of catalyst treatment, and particularly to a catalyst pickling treatment device. Background Art

[0002] During the ionization process of a plasma generator, trace amounts of ozone are generated and decomposed by an ozone catalyst. The ozone catalytic oxidation technology is that the ozone catalyst directly undergoes an oxidation-reduction reaction with ozone. The hydroxyl radicals formed by ozone under the action of the catalyst have a higher reaction rate and stronger oxidizing property with organic substances, and can oxidize almost all organic substances. The catalyst can catalyze ozone to directly oxidize organic substances in the air into CO2 and H2O, or oxidize and decompose macromolecular organic substances into small molecules, making them easier to be degraded.

[0003] After the ozone catalyst is used for a period of time, the activity of the ozone catalyst will decline, and the decomposition efficiency of ozone will decrease. Therefore, it is necessary to regenerate the ozone catalyst. The regeneration methods of the catalyst include water washing, pickling, SO2 acidification thermal regeneration method, and thermal reduction regeneration method, etc. Generally, pickling method is mainly used for regeneration, and the catalyst is pickled regularly to restore its activity and performance.

[0004] Impurities will be generated after the catalyst is pickled, such as shed solid particles, reaction-produced precipitates, etc. Before the catalyst enters the pickling tank, the liquid in the pickling tank is in a static state. These impurities after the previous catalyst pickling will precipitate downward in the pickling tank under their own gravity, and then block the air diffuser. When the air diffuser is blocked, the aeration will be uneven during the next catalyst pickling, which will affect the cleaning effect of the catalyst, resulting in the catalyst not sinking to the bottom during cleaning, and the catalyst cannot effectively recover its activity. Summary of the Invention

[0005] The purpose of the present invention is to provide a catalyst pickling treatment device to solve the problems put forward in the above background art.

[0006] Technical Solution

[0007] The present invention provides the following technical solution: A catalyst pickling treatment device includes a pickling tank and a catalyst body. A filter frame, a protection frame, an air diffuser pipe, and a first connection frame are arranged in the pickling tank. The filter frame is arranged outside the protection frame, the protection frame covers the outside of the air diffuser pipe. A second ventilation channel is arranged in the first connection frame, and the second ventilation channel can open the cover plate arranged in the connection cylinder on the protection frame. The bubbles generated by the air diffuser pipe can enter the pickling tank through the connection cylinder to clean the catalyst body, and when the cover plate is closed, it prevents the impurities after the catalyst body is cleaned from blocking the air diffuser pipe.

[0008] Preferably, the second ventilation channel includes a piston plate, a piston column and a ventilation column. When the piston plate moves upward, the piston column drives the ventilation column to open the cover plate, and a tension spring is arranged at the bottom end of the piston plate.

[0009] Preferably, a hinge seat is arranged at the top end of the ventilation column, and the ventilation column is movably connected to the cover plate through the hinge seat. A ventilation cavity is arranged inside the ventilation column, and the shape of the ventilation cavity is Z-shaped.

[0010] Preferably, a top plate is arranged on the protection frame, a connecting rod is arranged at the bottom end of the top plate, and the connecting rod is fixedly connected to the piston column.

[0011] Preferably, a first ventilation channel and a fixed frame are arranged in the aeration pipe. Both the first ventilation channel and the second ventilation channel are communicated with the air inlet pipe, and a baffle plate is arranged above the first ventilation channel.

[0012] Preferably, a rotating gear and a rack column are arranged in the fixed frame. The rotating gear is meshed with the rack column and the baffle plate respectively. A first connecting column is arranged at the other end of the rack column, and the first connecting column contacts the piston column.

[0013] Preferably, a second connecting column is arranged on the other side of the piston column. A first fixing block is fixedly installed on the piston column. Both the first connecting column and the second connecting column are located below the first fixing block.

[0014] Preferably, a second connecting frame is fixedly installed on the outer side of the protection frame. A fixing plate is arranged inside the filter screen frame. A plugging column is arranged on the fixing plate, and the plugging column extends into the second connecting frame. A sliding plate and a compression spring are arranged in the plugging column, and a limiting block is arranged on the side of the sliding plate.

[0015] Preferably, a pushing block is arranged on the second connecting column. The pushing block and the sliding plate are both provided with inclined surfaces, and the pushing block and the sliding plate are in contact through the inclined surfaces.

[0016] Preferably, a second fixing block is arranged in the second connecting frame. The limiting block extends out of the plugging column and is engaged with the second fixing block.

[0017] Beneficial effects

[0018] Compared with the prior art, the present invention provides a catalyst pickling treatment device, which has the following beneficial effects:

[0019] 1. In the present invention, the filter screen frame can prevent most of the impurities generated after the catalyst body is cleaned from blocking the aeration ports of the aeration pipe. The cover plate of the protection frame can further prevent the impurities in the pickling tank from blocking the aeration ports of the aeration pipe through the filter screen frame, effectively ensuring the normal operation of the aeration pipe.

[0020] 2. In the present invention, the cover plate will automatically cover after the cleaning is completed. This design can effectively prevent impurities after the cleaning of the catalyst body from reversely entering the aeration pipe due to factors such as pressure change, thus ensuring that the aeration pipe will not be blocked, maintaining the normal working state of the aeration pipe, and ensuring that the aeration function can be stably provided during the subsequent pickling operation.

[0021] 3. In the present invention, the catalyst body after being pickled in the pickling tank is used for ozone decomposition again. Since the impurities accumulated on the surface area of the catalyst body are removed, the activity of the catalyst body increases, and it can better decompose ozone, enhancing the ozone decomposition efficiency.

[0022] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0023] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0025] Figure 1 It is the front internal view of the overall structure of the present invention;

[0026] Figure 2 It is the connection schematic diagram of the filter screen frame cover and the aeration pipe of the present invention;

[0027] Figure 3 It is the front view of the filter screen frame cover and the aeration pipe of the present invention;

[0028] Figure 4 It is the outer side schematic diagram of the aeration pipe of the present invention;

[0029] Figure 5 It is the cross-sectional view of the aeration pipe and the protection frame of the present invention;

[0030] Figure 6 It is the present invention Figure 5 The enlarged view of A in;

[0031] Figure 7 It is the present invention Figure 5 The enlarged view of B in;

[0032] Figure 8 It is the schematic diagram of the ventilation column of the present invention;

[0033] Figure 9 This is the working drawing of the baffle plate of the present invention;

[0034] Figure 10 This is the enlarged partial sectional view of the second connection frame of the present invention.

[0035] Explanation of reference numerals in the drawings:

[0036] In the figure: 1, pickling tank; 2, catalyst body; 3, filter screen frame; 4, intake pipe; 5, protective frame; 6, aeration pipe; 7, first connection frame; 8, second connection frame; 9, fixing plate; 10, connecting cylinder; 11, cover plate; 12, top plate; 13, first ventilation channel; 14, second ventilation channel; 15, piston plate; 16, piston column; 17, first fixing block; 18, fixing frame; 19, baffle plate; 20, tension spring; 21, ventilation column; 22, hinge seat; 23, ventilation cavity; 24, connecting rod; 25, first connecting column; 26, rotating gear; 27, rack column; 28, second connecting column; 29, pushing block; 30, plugging column; 31, second fixing block; 32, sliding plate; 33, limiting block; 34, compression spring; 35, inclined plane. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Embodiment:

[0039] Please refer to Figures 1 - 8 , the present invention provides a technical solution: a catalyst pickling treatment device, including a pickling tank 1 and a catalyst body 2. A filter screen frame 3, a protective frame 5, an aeration pipe 6 and a first connection frame 7 are arranged in the pickling tank 1. The filter screen frame 3 is arranged outside the protective frame 5, and the protective frame 5 covers the outside of the aeration pipe 6. From outside to inside, there are arranged a filter screen frame 3, a second connection frame 8, a protective frame 5, an aeration pipe 6 and an intake pipe 4 in sequence. The intake pipe 4 is installed below the aeration pipe 6. The gas in the intake pipe 4 is divided into two parts and enters the aeration pipe 6 and the first connection frame 7 respectively through the first ventilation channel 13 and the second ventilation channel 14. A second ventilation channel 14 is opened in the first connection frame 7. The second ventilation channel 14 can open the cover plate 11 arranged in the connecting cylinder 10 on the protective frame 5. The bubbles generated by the aeration pipe 6 can enter the pickling tank 1 through the connecting cylinder 10 to clean the catalyst body 2. When the cover plate 11 is closed, it prevents the impurities after the catalyst body 2 is cleaned from blocking the aeration pipe 6.

[0040] A filter screen is provided in the filter screen frame 3. The filter screen can filter out most of the shed solid particles, reaction-produced precipitates, etc. However, some impurities can still continue to precipitate downward through the filter screen pile. The protective frame 5 can block this part of the impurities from blocking the aeration pipe 6, forming a double-layer protective layer to prevent the aeration pipe 6 from being blocked.

[0041] In this embodiment, the second ventilation channel 14 includes a piston plate 15, a piston column 16 and a ventilation column 21. The top end of the piston plate 15 is fixedly connected to the piston column 16. The top end of the piston column 16 passes through the top end of the first connection frame 7 and is fixedly connected to the ventilation column 21. When the piston plate 15 moves upward, it drives the ventilation column 21 to open the cover plate 11 through the piston column 16. A tension spring 20 is fixedly installed at the bottom end of the piston plate 15. After the gas in the intake pipe 4 enters the second ventilation channel 14, the tension spring 20 squeezes the piston plate 15 upward in the first connection frame 7, causing the length of the tension spring 20 to stretch. When no gas enters the second ventilation channel 14, the tension spring 20 will restore its elastic force and pull the piston plate 15 back to its original position.

[0042] In this embodiment, a hinge seat 22 is provided at the top end of the ventilation column 21, and the ventilation column 21 is movably connected to the cover plate 11 through the hinge seat 22. The cover plate 11 is movably connected to the outer side wall of the top end of the protective frame 5 through a hinge. When the ventilation column 21 moves upward, it will open the cover plate 11 through the hinge seat 22 and the hinge. A ventilation cavity 23 is provided inside the ventilation column 21, and the shape of the ventilation cavity 23 is Z-shaped.

[0043] For the Z-shaped ventilation cavity 23, after the ventilation column 21 rises in the connecting cylinder 10, it will extend out of the protective frame 5. At this time, a part of the ventilation column 21 is located outside the protective frame 5, and the other part is located inside the protective frame 5. The ventilation cavity 23 can communicate the inside and outside of the protective frame 5 with each other.

[0044] When the intensity of the compressed air from the intake pipe 4 in the second ventilation channel 14 becomes larger, the length that the ventilation column 21 can extend out of the connecting cylinder 10 becomes longer. At the same time, the width of the ventilation cavity 23 that can be exposed outside the protective frame 5 becomes larger, that is, the bubbles of the aeration pipe 6 passing through the protective frame 5 become larger. When the width of the ventilation cavity 23 that can be exposed outside the protective frame 5 becomes smaller, the bubbles of the aeration pipe 6 passing through the protective frame 5 become smaller. In this way, the length that the ventilation column 21 extends out can be adjusted according to the cleaning condition of the catalyst body 2 itself in the pickling tank 1, that is, the aeration intensity of the aeration pipe 6 can be adjusted.

[0045] In this embodiment, a top plate 12 is provided on the protective frame 5. The bottom end of the top plate 12 penetrates through the interior of the top end of the protective frame 5. The top plate 12 is in a T shape. At the same time, ventilation holes are penetrated and opened on the inner wall of the top end of the protective frame 5. The width of the ventilation holes is greater than the width of the vertical part of the top plate 12. The horizontal part of the top plate 12 is located outside the protective frame 5 and can completely cover the ventilation holes, preventing air leakage from the ventilation holes when covered. A connecting rod 24 is provided at the bottom end of the top plate 12 and is fixedly connected to the piston rod 16 through the connecting rod 24. When the ventilation column 21 moves upward, the top plate 12 can move upward together, opening more channels of the protective frame 5, facilitating the generation of bubbles by the aeration pipe 6 to pass through and cleaning the catalyst body 2.

[0046] In this embodiment, a first ventilation channel 13 and a fixed frame 18 are provided in the aeration pipe 6. Both the first ventilation channel 13 and the second ventilation channel 14 are communicated with the air inlet pipe 4. A blocking plate 19 is provided above the first ventilation channel 13. The blocking plate 19 can block the gas from entering the aeration pipe 6 when the air inlet pipe 4 is not ventilated.

[0047] Please refer to Figure 9 , in this embodiment, a rotating gear 26 and a rack column 27 are provided in the fixed frame 18. The rotating gear 26 is respectively meshed with the rack column 27 and the blocking plate 19. The rack column 27 and the blocking plate 19 are vertically distributed, and the rack column 27 and the blocking plate 19 will not obstruct each other when moving. A first connecting column 25 is provided at the other end of the rack column 27. The first connecting column 25 contacts the piston rod 16. When the first connecting column 25 moves upward, it can drive the rack column 27 to move upward. When the rack column 27 moves upward, it will drive the rotating gear 26 to rotate. Moreover, when the rotating gear 26 rotates, it will drive the blocking plate 19 to move. After the blocking plate 19 moves, it will open the first ventilation channel 13.

[0048] A tooth column is fixedly installed on the blocking plate 19, and the blocking plate 19 is meshed with the rotating gear 26 through the tooth column. [[ID=TW]]

[0049] In this embodiment, a second connecting column 28 is provided on the other side of the piston rod 16. A first fixing block 17 is fixedly installed on the piston rod 16. Both the first connecting column 25 and the second connecting column 28 are located below the first fixing block 17. Both the first connecting column 25 and the second connecting column 28 are located on the symmetric sides of the piston rod 16, and neither the first connecting column 25 nor the second connecting column 28 is fixedly connected to the piston rod 16, but is in sliding contact with the side of the piston rod 16.

[0050] When the piston rod 16 moves upward to the maximum distance, the first fixing block 17 contacts the inner cavity top of the first connecting frame 7.

[0051] When the piston plate 15 moves upward, it will contact the first connecting column 25 and the second connecting column 28 respectively, and can drive the first connecting column 25 and the second connecting column 28 to move upward, and the first connecting column 25 and the second connecting column 28 move simultaneously.

[0052] Before the aeration pipe 6 performs aeration work, the compressed gas will first enter the second ventilation channel 14. By the upward movement of the piston column 16 and the ventilation column 21, the cover plate 11 is opened, so that the inside and outside of the protective frame 5 are communicated with each other. After the cover plate 11 is opened, the first ventilation channel 13 will be opened passively, and the aeration pipe 6 will start to work. This can prevent the aeration pipe 6 from starting to work before the cover plate 11 is opened. The bubbles generated by the aeration pipe 6 will be compressed in the protective frame 5. After the cover plate 11 is opened, the bubbles generated by the aeration pipe 6 will quickly enter the pickling tank 1 through the ventilation cavity 23 and will cause strong impact vibration on the bottom of the catalyst body 2, which is likely to damage the catalyst body 2 and cause defects in the reuse of the catalyst body 2.

[0053] The filter screen frame 3 can prevent most of the impurities generated after the catalyst body 2 is cleaned from blocking the aeration ports of the aeration pipe 6, and the cover plate 11 of the protective frame 5 can further prevent the impurities in the pickling tank 1 from blocking the aeration ports of the aeration pipe 6 through the filter screen frame 3.

[0054] When the catalyst body 2 is being cleaned, the length of the ventilation column 21 extending out of the connecting cylinder 10 can be adjusted, so that the bubbles generated by the aeration pipe 6 can flow to the outside of the protective frame 5 through the ventilation cavity 23, and the intensity of the compressed gas in the intake pipe 4 can be adjusted according to the cleaning situation of the catalyst body 2.

[0055] The greater the intensity of the compressed gas entering the intake pipe 4, the larger the bubbles generated by the aeration pipe 6, which can make the stirring force of the liquid in the pickling tank 1 greater, resulting in complex convection and vortices in the whole liquid. Strong mixing can make the acid solution quickly circulate around the catalyst, ensuring full contact between the acid solution and all parts of the catalyst. At the same time, when the intensity of the compressed gas is small, the liquid mixing is relatively gentle, and the small bubbles can provide a larger gas-liquid contact area, which is beneficial to the full mixing of gas and liquid.

[0056] Please refer to Figure 10 In this embodiment, a second connecting frame 8 is fixedly installed on the outside of the protective frame 5. A fixing plate 9 is arranged inside the filter screen frame 3. A plugging column 30 is arranged on the fixing plate 9. The plugging column 30 extends into the second connecting frame 8. A sliding plate 32 and a compression spring 34 are arranged in the plugging column 30. A limiting block 33 is arranged on the side of the sliding plate 32. The filter screen frame 3 can be inserted into the second connecting frame 8 through the fixing plate 9 and the plugging column 30, which is convenient for the portable installation of the filter screen frame 3.

[0057] In this embodiment, a pushing block 29 is provided on the second connecting column 28. The pushing block 29 and the sliding plate 32 are both provided with inclined surfaces 35, and the pushing block 29 and the sliding plate 32 are in contact through the inclined surfaces 35. When the pushing block 29 moves upward, the adjacent two sliding plates 32 will move away from each other through the cooperation of the inclined surfaces 35, and then the sliding plate 32 will drive the limiting block 33 to extend out of the inserting column 30.

[0058] In this embodiment, a second fixing block 31 is provided in the second connecting frame 8. The limiting block 33 extends out of the inserting column 30 and is engaged with the second fixing block 31. When the limiting block 33 and the second fixing block 31 are engaged with each other, the inserting column 30 is passively locked in the second connecting frame 8.

[0059] The filter screen frame 3 needs to be replaced regularly. The filter screen frame 3 is connected to the inserting column 30 and the second connecting frame 8 through the fixing plate 9. In this way, the filter screen frame 3 will be installed outside the aeration pipe 6 and the protection frame 5. At the same time, the installation and disassembly of the filter screen frame 3 are very simple and convenient, which is convenient for replacement.

[0060] When the aeration pipe 6 works, the liquid in the pickling tank 1 will be stirred to a certain extent, and the filter screen frame 3 is easily shaken by the water flow. When the aeration pipe 6 works, the filter screen frame 3 can be passively locked in the second connecting frame 8 through the inserting column 30. In this way, the filter screen frame 3 will not shake or break away from the protection frame 5 due to the cleaning work of the catalyst body 2, protecting the stability of the filter screen frame 3.

[0061] After the catalyst body 2 is pickled, it is used again to absorb ozone during the ionization process of the plasma generator, which can avoid the ozone generated during the ionization process of the plasma generator from diffusing into the atmosphere and avoid air pollution.

[0062] The working principle of this embodiment: During use, compressed gas is introduced into the air inlet pipe 4, and the compressed gas will enter the first ventilation channel 13 and the second ventilation channel 14 respectively. Since there is a blocking plate 19 on the first ventilation channel 13 to block, the compressed gas will preferentially enter the second ventilation channel 14. After entering, it will push the piston plate 15 to move upward. The upward movement of the piston plate 15 will drive the ventilation column 21 to move upward in the connecting cylinder 10, and the cover plate 11 will be opened through the hinge seat 22 and the hinge. In this way, the inside and outside of the protection frame 5 will be interconnected. During the upward movement of the piston plate 15, it will drive the first connecting column 25 to move upward. In this way, when the first connecting column 25 moves upward, it will drive the rack column 27 to move upward in the fixed frame 18 and can drive the rotating gear 26 to rotate. At the same time, when the rotating gear 26 rotates, it will drive the blocking plate 19 to retract toward the fixed frame 18 side. In this way, the first ventilation channel 13 will be opened, and the compressed gas will also enter the aeration pipe 6 through the first ventilation channel 13 for aeration. The aeration will come out through the ventilation cavity 23 and the ventilation holes to clean the catalyst body 2 in the pickling tank 1.

[0063] Meanwhile, when the piston column 16 moves upward, it will also drive the second connecting column 28 to move upward together. When the second connecting column 28 moves upward, it will drive the pushing block 29 to move upward together. At the same time, when the pushing block 29 moves upward, it will separate two adjacent sliding plates 32 through the cooperation of the inclined surface 35 and move them toward the inner cavity wall side of the plugging column 30. When the sliding plate 32 moves, it will also drive the limiting block 33 to extend out of the plugging column 30 and move to the second fixing block 31. As the pushing block 29 continues to move upward, the limiting block 33 will be engaged with the second fixing block 31, so that the filter screen frame 3 will be fixed on the outside of the protection frame 5.

[0064] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A catalyst pickling treatment device, comprising a pickling tank (1) and a catalyst body (2), characterized in that: A filter frame (3), a protective frame (5), an air diffuser pipe (6) and a first connection frame (7) are arranged in the pickling tank (1). The filter frame (3) is arranged outside the protective frame (5), the protective frame (5) covers the outside of the air diffuser pipe (6), a second ventilation channel (14) is arranged in the first connection frame (7), and when the second ventilation channel (14) is ventilated, the cover plate (11) arranged in the connecting cylinder (10) on the protective frame (5) can be opened. The bubbles generated by the air diffuser pipe (6) can enter the pickling tank (1) through the connecting cylinder (10) to clean the catalyst body (2), and the cover plate (11) is covered to prevent impurities after the cleaning of the catalyst body (2) from blocking the air diffuser pipe (6).

2. The pickling treatment device for a catalyst according to claim 1, wherein: The second ventilation channel (14) includes a piston plate (15), a piston column (16) and a ventilation column (21). When the piston plate (15) moves upward, the ventilation column (21) is driven by the piston column (16) to open the cover plate (1). A tension spring (20) is arranged at the bottom end of the piston plate (15).

3. The acid pickling treatment device for a catalyst according to claim 2, characterized in that: A hinge seat (22) is arranged at the top end of the ventilation column (21), and the ventilation column (21) is movably connected with the cover plate (11) through the hinge seat (22). A ventilation cavity (23) is arranged inside the ventilation column (21), and the shape of the ventilation cavity (23) is Z-shaped.

4. The catalyst pickling treatment device according to claim 2, characterized in that: A top plate (12) is arranged on the protective frame (5), a connecting rod (24) is arranged at the bottom end of the top plate (12), and the connecting rod (24) is fixedly connected with the piston column (16).

5. The pickling treatment device for a catalyst according to claim 2, characterized in that: A first ventilation channel (13) and a fixed frame (18) are arranged in the air diffuser pipe (6). Both the first ventilation channel (13) and the second ventilation channel (14) are communicated with the air inlet pipe (4), and a baffle plate (19) is arranged above the first ventilation channel (13).

6. The pickling treatment device for a catalyst according to claim 5, wherein: A rotating gear (26) and a rack column (27) are arranged in the fixed frame (18). The rotating gear (26) is meshed with the rack column (27) and the baffle plate (19) respectively. A first connecting column (25) is arranged at the other end of the rack column (27), and the first connecting column (25) contacts with the piston column (16).

7. A catalyst pickling treatment device according to claim 6, characterized in that: A second connecting column (28) is arranged on the other side of the piston column (16). A first fixing block (17) is fixedly installed on the piston column (16). Both the first connecting column (25) and the second connecting column (28) are located below the first fixing block (17).

8. A catalyst pickling treatment device according to claim 7, characterized in that: A second connection frame (8) is fixedly installed outside the protective frame (5). A fixing plate (9) is arranged inside the filter frame (3). A plugging column (30) is arranged on the fixing plate (9), and the plugging column (30) extends into the second connection frame (8). A sliding plate (32) and a compression spring (34) are arranged in the plugging column (30), and a limiting block (33) is arranged on the side of the sliding plate (32).

9. A catalyst pickling treatment device according to claim 8, characterized in that: A pushing block (29) is arranged on the second connecting column (28). Bevels (35) are arranged on both the pushing block (29) and the sliding plate (32), and the pushing block (29) contacts with the sliding plate (32) through the bevel (35).

10. A catalyst pickling treatment device according to claim 9, characterized in that: A second fixing block (31) is arranged in the second connection frame (8), and the limiting block (33) extends out of the plugging column (30) and is engaged with the second fixing block (31).

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