Catalyst surface powder scraping machine

Abstract

The utility model discloses a catalyst surface powder scraping machine which comprises a clamping mechanism, a scraping mechanism and a dust collecting mechanism. The clamping mechanism is used for clamping and fixing the catalyst, the scraping mechanism is used for rotationally scraping the surface of the catalyst, the scraped material enters the collecting bin through the negative pressure material suction pipeline, the collecting bin adopts a fixed bin and a movable bin which are split, and after the fixed bin and the movable bin are assembled, the movable bin is free of an exposed notch and is in a closed state; and dust cannot overflow into the working environment after entering the movable bin, it is also guaranteed that all materials can enter the movable bin, the powder collecting rate is improved, the movable bin is taken out after collection is completed, and follow-up operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of catalyst detection technology, and in particular to a catalyst surface powder scraping machine. Background Technology

[0002] Catalysts are important promoters in chemical reactions, whose main function is to accelerate the reaction rate without being consumed. Catalysts have a wide range of applications, including petrochemicals, environmental protection, and the synthesis of new materials.

[0003] Scraping the surface of catalyst powder is an important step in catalyst powder processing. Current scraping methods rely solely on manual labor, which is time-consuming and labor-intensive. This is especially true for eggshell-shaped catalysts, where the active components are mainly distributed within a certain depth on the catalyst surface. For testing and characterization purposes, it is necessary to scrape off the active components from the catalyst surface.

[0004] Existing scraping equipment is not ideal for dust collection. For example, Chinese utility model patent CN202122470964.0 discloses a dust collection device for cutting machines that facilitates collection and removal. The device includes a housing with an open front end mounted above the cutting machine. An air-blowing device is located on one side of the housing, blowing air towards the open end, with a gap between the air-blowing device and the open end. The housing is placed on a support frame, and a bucket-shaped discharge port is located at the bottom of the housing. A dust collection box is located below the bucket-shaped discharge port, and an inlet is located at the top of the dust collection box. A flexible hose connects the inlet and the bucket-shaped discharge port. This utility model's housing can directly collect dust from the cutting blade's tail, and then transfer the dust to the dust collection box through the bucket-shaped discharge port. The utility model uses a blowing method to blow dust into the housing, which then falls into the dust collection box at the bottom of the housing under gravity. Dust generated during the cutting process accumulates in large quantities inside the equipment, affecting its normal operation and even causing it to malfunction and shut down. In addition, the semi-enclosed casing inevitably causes dust to spill out during purging, and the harsh working environment can also affect the enthusiasm and efficiency of the staff.

[0005] Therefore, a catalyst surface powder scraping device is proposed to address the above problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a catalyst surface powder scraping machine that can automatically scrape and effectively collect the scraped powder to prevent powder overflow.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A catalyst surface powder scraping machine, comprising a worktable, characterized in that: [the following is fixed on the worktable:]

[0009] Clamping mechanism for securing and holding the catalyst;

[0010] A scraping mechanism is used to rotary scrape the catalyst surface; and

[0011] The material collection mechanism includes a collection hood, a negative pressure suction pipe, and a collection bin. The collection hood is fixed below the clamping mechanism with its opening facing upwards. The inlet end of the negative pressure suction pipe is fixed to and connected to the bottom of the collection hood, and the outlet end of the negative pressure suction pipe is connected to the collection bin.

[0012] The collection chamber includes:

[0013] A fixed chamber, open at the top, has a first sidewall and a second sidewall arranged opposite each other. The discharge end of the negative pressure suction pipe extends into the fixed chamber through the first sidewall and is fixed thereto. A clamping assembly is fixed on the second sidewall.

[0014] The mobile chamber is located inside the fixed chamber. The mobile chamber has a feed inlet on the side facing the first side wall of the fixed chamber. The clamping assembly can clamp the mobile chamber inward so that its feed inlet connects with the discharge end of the negative pressure suction pipe.

[0015] A further technical solution is that a sealing ring is fitted on the outer wall of the discharge end of the negative pressure suction pipe. After the negative pressure suction pipe is connected to the moving chamber, the discharge end of the negative pressure suction pipe extends into the moving chamber. At this time, the sealing ring is located outside the moving chamber and is in a squeezed state.

[0016] A further technical solution is that a screen is provided in the middle of the mobile chamber, a particle chamber is formed above the screen, a powder chamber is formed below the screen, a powder outlet is provided on the powder chamber, and a removable plug is provided on the powder outlet.

[0017] A further technical solution is that the top of the mobile compartment is provided with a detachable cover, and the screen can be removed.

[0018] A further technical solution is that the clamping component includes:

[0019] A threaded push rod is connected to a through-hole thread on the second side wall of the fixed chamber. One end of the threaded push rod extends into the fixed chamber, and the other end is located outside the fixed chamber.

[0020] A further technical solution is that the clamping mechanism includes:

[0021] A first ejector rod, one end of which is connected to a motor that drives its rotation, the motor being fixed to the worktable; the clamping end of the first ejector rod has a coaxial first positioning groove; and

[0022] The second ejector rod is rotatably fixed on the worktable. The second ejector rod is coaxially arranged with the first ejector rod and the distance between them is adjustable. The clamping end of the second ejector rod has a coaxial second positioning groove.

[0023] A further technical solution is that the scraping mechanism includes:

[0024] scraper; and

[0025] The position adjustment component, fixed to the scraper, is used to adjust the relative position of the scraper and the catalyst.

[0026] A further technical solution is that the position adjustment component is a cross slide, the scraper is fixed above the cross slide, and the displacement direction of the cross slide is parallel to the axial direction of the catalyst.

[0027] A further technical solution is that the negative pressure suction pipeline includes:

[0028] Centrifugal fan;

[0029] The first pipe has one end connected to the air inlet of the fan, and the other end fixed and connected to the bottom of the collection hood; and

[0030] The second pipe has one end connected to the air outlet of the blower and the other end fixedly connected to the collection chamber.

[0031] A further technical solution is that a spiral-shaped guide vane is provided on the inner wall of the negative pressure suction pipe.

[0032] The beneficial effects of adopting the above technical solution are as follows:

[0033] This catalyst surface powder scraping machine uses a clamping mechanism to hold and fix the catalyst. The scraping mechanism automatically rotates and scrapes the fixed catalyst surface. The scraped material enters a moving chamber through a negative pressure suction pipe. After scraping is complete, the moving chamber is removed from the fixed chamber, the material is transferred to other containers for storage, and then the moving chamber is installed back into the fixed chamber for subsequent use. The automatic scraping of the catalyst surface greatly improves work efficiency.

[0034] Because the mobile bin needs to be repeatedly disassembled and reassembled with the negative pressure suction pipeline, in order to improve the docking efficiency between the mobile bin and the negative pressure suction pipeline, the collection bin is set as a separate fixed bin and mobile bin. The fixed bin is used to fix the discharge end of the negative pressure suction pipeline and provide a reference for the installation of the mobile bin. During installation, the mobile bin is placed inside the fixed bin, and the clamping component is used to clamp the mobile bin inward so that its inlet is connected with the discharge end of the negative pressure suction pipeline, ensuring the stability of the docking and allowing all the material to enter the mobile bin. After scraping is completed, the clamping component is released outward, and the mobile bin can be lifted and separated from the fixed bin to achieve complete material removal, which facilitates subsequent material processing.

[0035] Moreover, the removable mobile chamber facilitates the removal of materials from the chamber and subsequent cleaning, preventing the mixing of different catalyst powders and ensuring the accuracy of the test.

[0036] In addition, the catalyst surface powder scraper uses a negative pressure suction pipe to absorb the scraped powder, ensuring that the powder is fully collected. Moreover, the assembled mobile chamber has no exposed openings and is in a closed state, preventing powder from spilling into the working environment. This avoids equipment failure and downtime due to dust issues, reduces downtime, and ensures the continuity and stability of the scraping process. It also provides a good working environment for operators. Attached Figure Description

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0038] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0039] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0040] Figure 3 This is a schematic diagram of the material collection mechanism in this utility model;

[0041] Figure 4 This is a cross-sectional view of the first pipe in this utility model;

[0042] Figure 5 This is a schematic diagram of the structure of the movable compartment and the clamping component that cooperate in this utility model.

[0043] Legend: 1. Workbench; 2. Elevating platform; 3. Motor; 4. Support base; 5. Second ejector rod; 6. Slide base; 7. First slide; 8. Second slide; 9. Scraper; 10. Clamp; 11. First ejector rod; 12. Collection cover; 13. Buffer channel; 14. First pipe; 15. Centrifugal fan; 16. Fixed bin; 17. Second pipe; 18. Moving bin; 19. Guide vane; 20. Threaded ejector rod; 21. Friction plate; 22. Handle. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] In the description of this utility model, unless otherwise stated, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and 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, and therefore should not be construed as a limitation of this utility model.

[0046] like Figures 1-5 As shown, the catalyst surface powder scraper is capable of scraping the surface of cylindrical and egg-shaped catalysts. The catalyst surface powder scraper includes a worktable 1, which provides stable support for the main body of the scraper. To accommodate different working heights, an extension platform 2 can also be fixedly installed on the worktable 1. A clamping mechanism, a scraping mechanism, and a material collection mechanism are fixed on the worktable 1, enabling the rotational scraping of the catalyst to obtain powder from the catalyst surface and effectively collecting the scraped powder.

[0047] Example 1:

[0048] The clamping mechanism is used to securely hold the catalyst, ensuring its stable fixation on the worktable. Specifically, the clamping mechanism includes a first ejector rod 11 and a second ejector rod 5 coaxially arranged. One end of the first ejector rod 11 is connected to a motor 3 that drives its rotation, and the motor 3 is fixed to the worktable. A support base 4 is also provided on the worktable, with a channel on the support base 4. The second ejector rod 5 is rotatably mounted in the channel via bearings. A clamping space is formed between the second ejector rod 5 and the first ejector rod 11, and the distance between the second ejector rod 5 and the first ejector rod 11 is adjustable. The second ejector rod 5 can be an existing form such as an automatically retractable electric telescopic rod, a cylinder, or a hydraulic cylinder. Adjusting the position of the clamping end of the second ejector rod 5 serves two purposes: firstly, it tightens the catalyst, firmly clamping it between the first ejector rod 11 and the second ejector rod 5; secondly, it adjusts the size of the clamping space to accommodate catalysts of different lengths.

[0049] In addition, to ensure that the catalyst remains coaxial with the first ejector rod 11 and the second ejector rod 5 during rotation, the clamping end of the first ejector rod 11 has a coaxial first positioning groove, and the clamping end of the second ejector rod 5 has a coaxial second positioning groove. When the catalyst is cylindrical, the two positioning grooves are circular, with dimensions matching the cross-sectional dimensions at both ends of the catalyst. When the catalyst is eggshell-shaped, the two positioning grooves are also circular, but their dimensions are larger than the end dimensions of the eggshell-shaped catalyst. When the end of the eggshell-shaped catalyst is embedded in the positioning groove, the positioning groove can radially hold the eggshell-shaped catalyst in place, thereby restricting radial displacement of the catalyst.

[0050] To further improve the stability of the catalyst clamping by the first ejector rod 11 and the second ejector rod 5, soft pads, such as silicone pads, are provided at the bottom of the first and second positioning troughs. These pads can be interference-fitted with the positioning troughs or fixed by adhesive bonding. On one hand, the pads increase the friction between the catalyst and the bottom of the positioning troughs, better ensuring the consistent rotation of the first ejector rod 11, the catalyst, and the second ejector rod 5. On the other hand, the pads also prevent the second ejector rod 5 from colliding directly with the catalyst during clamping, thus avoiding damage.

[0051] When installing the catalyst, first place one end of the catalyst in the first positioning trough. The operator holds the catalyst to maintain stability, and then adjusts the second push rod 5 so that its clamping end moves closer to the first push rod 11 until the other end of the catalyst is placed in the second positioning trough and the second push rod 5 presses against the catalyst, thus fixing the catalyst to the clamping mechanism. During operation, the motor is started, and the motor drives the first push rod 11 to rotate. Under the action of the clamping force, the catalyst and the second push rod 5 can rotate synchronously with the first push rod 11.

[0052] Example 2:

[0053] The scraping mechanism includes a scraper blade 9 and a position adjustment assembly. The position adjustment assembly is fixed to the scraper blade 9 and is used to adjust the relative position of the scraper blade 9 and the catalyst. This includes adjusting the lateral position of the scraper blade to adjust the catalyst scraping feed rate, and adjusting the longitudinal position of the scraper blade to scrape at different positions along the catalyst axis.

[0054] After starting the motor 3, the scraper 9 scrapes the surface of the rotating catalyst, achieving rotational scraping of the catalyst surface to obtain catalyst powder, thus improving working efficiency.

[0055] Example 3:

[0056] The position adjustment component can adopt a cross slide structure, such as Figure 1 and Figure 2 As shown, the cross slide table includes a slide table base 6 fixed on the worktable 1, and a first slide table 7 is provided on the slide table base 6. The first slide table 7 includes a first slide rail fixed to the slide table base 6. The first slide rail is arranged longitudinally, that is, parallel to the axis of the catalyst. A first slider is longitudinally slidably connected to the first slide rail by a concave-convex fitting method. A second slide table 8 is fixed to the first slide table 7. The second slide table 8 includes a second guide rail fixed to the first slider. The second guide rail is arranged laterally, that is, intersecting the first slide rail in a cross shape. A second slider is laterally slidably connected to the second slide rail by a concave-convex fitting method.

[0057] The scraper 9 can be an angle grinder or a circular saw blade with rotary drive, and the scraper 9 is fixed to the second slider by means of clamps 10, etc. Figure 1 As shown, the scraper 9 is located on the right side of the clamping mechanism. During operation, the catalyst rotates counterclockwise, and the scraper 9 also rotates counterclockwise, so that at the position where the scraper 9 contacts the catalyst, the scraper 9 can scrape downwards towards the catalyst, and the scraped material naturally falls downwards, avoiding the material from rising.

[0058] In the first slide table 7 and the second slide table 8, in order to drive each slider to move automatically along its corresponding slide rail, a lead screw is rotatably fixed to each slide rail via a bearing. One end of the lead screw is fixed to a motor that drives its rotation. The slider is threadedly connected to the lead screw. Starting the corresponding motor, driven by the lead screw, drives the first slider to move longitudinally along the first slide rail, and the second slider to move laterally along the second slide rail. This allows for adjusting the lateral position of the scraper to change the scraping feed rate on the catalyst, and adjusting the longitudinal position of the scraper to change the scraping of different axial positions on the catalyst.

[0059] When a certain depth of scraping is required, the catalyst surface can be scraped multiple times. During this process, the scraper 9, driven by the first slide 7, will continuously reciprocate along the catalyst's axial direction, scraping once per axial movement. Then, driven by the second slide 8, the scraper 9 will move laterally closer to the catalyst by a set displacement, thereby increasing the feed rate of the scraper 9. Multiple scraping operations are completed through the cooperation of the first and second slides 7 and 8. Alternatively, depending on the work requirements, the catalyst surface can be scraped only once. After adjusting the feed rate of the scraper 9 on the second slide 8, the scraper 9 moves from one end of the catalyst to the other on the first slide 7 and stops, completing one scraping operation. After scraping is complete, the scraper 9 will retract under the drive of the second slide 8.

[0060] Example 4:

[0061] The material collection mechanism is used to collect the powder scraped off. The material collection mechanism includes a collection hood 12, a negative pressure suction pipe, and a collection bin. The collection hood 12 is located below the clamping mechanism and has an upward opening. Preferably, the top opening of the collection hood 12 is made as large as possible, and its side wall has a wedge-shaped guide surface, which narrows the bottom outlet, facilitating the smooth downward discharge of the material inside the collection hood 12.

[0062] The feed end of the negative pressure suction pipe is fixed and connected to the bottom of the collection hood 12, and the discharge end of the negative pressure suction pipe is connected to the collection bin. The negative pressure suction pipe is used to connect the collection hood 12 and the collection bin, so that the material collected in the collection hood 12 enters the collection bin and is collected.

[0063] A buffer channel 13 can also be provided between the bottom of the collection hood 12 and the pressure suction pipe. The buffer channel 13 can be made of a cloth bag. Since the bottom of the collection hood 12 is a long hole, by setting the buffer channel 13, the collection hood 12 can smoothly transition downward into a round hole and connect with the feed port of the first pipe. In addition, the buffer channel 13 is made of a cloth bag, which can buffer the vibration generated by the operation of the blower 15. Moreover, using a cloth bag makes it easier to shake off the material and avoid the material from remaining in the buffer channel 13.

[0064] The collection chamber adopts a split structure, including a fixed chamber 16 and a movable chamber 18, preferably in the shape of a cuboid. The fixed chamber 16 has an open top and two opposing side walls. The discharge end of the negative pressure suction pipe extends into the fixed chamber through the first side wall and is fixed thereto. A tightening assembly that can extend and retract inward is fixed on the second side wall. The movable chamber 18 is movably located inside the fixed chamber 16, and the movable chamber 18 has no displacement in the width direction. The movable chamber 18 has an inlet on the side facing the first side wall. When the movable chamber 18 is placed inside the fixed chamber 16, the height of the inlet on the movable chamber 18 matches the height of the discharge end of the negative pressure suction pipe. The tightening assembly can tighten the movable chamber 18 inward so that its inlet aligns with the discharge end of the negative pressure suction pipe. The inlet is located on the upper part of the side wall of the movable chamber 18.

[0065] The clamping assembly can be in the form of an electric telescopic rod or a threaded rod 20. Using a threaded rod 20 provides more flexible adjustment. The threaded rod 20 is connected to a through-hole thread on the second side wall of the fixed chamber 16. One end of the threaded rod 20 extends into the fixed chamber 16, while the other end is outside. A handle 22 can also be fixed to the outer end of the threaded rod 20. During operation, the operator can manually rotate the handle 22 of the threaded rod 20.

[0066] In addition, such as Figure 5 As shown, the inner end of the threaded push rod 20 can also be fixed with a friction plate 21 to increase the contact area with the outer wall of the moving chamber 18. By setting the friction plate 21, the friction between the threaded push rod 20 and the moving chamber 18 can be increased, the stability of the pressing against the moving chamber 18 can be improved, and the feed inlet of the moving chamber 18 can be effectively and stably connected with the negative pressure suction pipeline.

[0067] Example 5:

[0068] To prevent powder from overflowing due to the annular gap between the discharge end of the negative pressure suction pipe and the inlet of the moving chamber 18, a sealing ring is fitted on the outer wall of the discharge end of the negative pressure suction pipe. The outer diameter of the sealing ring is larger than the inner diameter of the inlet of the moving chamber 18. The sealing ring is fixed to the negative pressure suction pipe and is made of rubber. After the negative pressure suction pipe is connected to the moving chamber, the discharge end of the negative pressure suction pipe extends into the moving chamber. The outer wall of the moving chamber 18 will compress the sealing ring, blocking the inlet of the moving chamber 18. When the moving chamber 18 is separated from the negative pressure suction pipe, the sealing ring loses its compression.

[0069] Example 6:

[0070] Since the material scraped off the catalyst includes both catalyst powder and carrier particles, and the detection is performed on the catalyst powder, a screen is installed in the middle of the moving chamber 18, located below the feed inlet, to separate the catalyst powder from the carrier particles. The collected material enters through the feed inlet at the top of the moving chamber 18 and falls onto the screen, forming a particle cavity above the screen. The screen can intercept the carrier particles, while the catalyst powder falls below the screen, forming a powder cavity below the screen, thus achieving the separation of catalyst powder and carrier particles.

[0071] When materials are removed from the moving chamber 18, the carrier particles can be poured directly out through the feed inlet on the particle chamber, and a powder outlet is provided on the powder chamber, through which the catalyst powder can be poured out. To prevent powder from overflowing from the powder outlet during collection, a removable plug, such as a rubber plug, is provided on the powder outlet, which is only removed when pouring material. Moreover, the outer end of the plug does not protrude from the outer wall of the moving chamber 18, and does not affect the assembly between the moving chamber 18 and the fixed chamber 16.

[0072] In addition, to avoid the mixing of different catalyst powders affecting the accuracy of the detection, the mobile chamber 18 needs to be cleaned and dried after the material collected in it is poured out before it can be used again. To facilitate cleaning of the inside of the mobile chamber 18, a removable top cover is provided on the top of the mobile chamber 18. The top cover can be directly and securely fastened to the top of the mobile chamber 18, either by hinge or by snap-fit ​​connection to the mobile chamber 18.

[0073] After opening the top cover, the screen can be disassembled and removed. Specifically, a raised edge can be installed around the screen's mounting position on the inner wall of the moving chamber 18. The screen is placed on top of this raised edge, which provides support. The raised edge can be formed by enlarging the inner hole of the particle chamber within the moving chamber 18, creating a step at the connection between the particle chamber and the powder chamber; this step constitutes the raised edge. When cleaning the moving chamber 18, simply open the top cover and remove the screen upwards.

[0074] When the mobile chamber 18 is removed, the upper layer inside the mobile chamber 18 consists of carrier particles, which can seal the catalyst powder at the bottom, preventing the powder from overflowing from the inlet of the mobile chamber 18 during its movement. If the mobile chamber 18 needs to be transported remotely, its inlet can be sealed during transportation to prevent the carrier particles from spilling out.

[0075] Example 7:

[0076] The negative pressure suction pipeline includes a centrifugal fan 15, a first pipe 14 and a second pipe 17. One end of the first pipe 14 is connected to the air inlet of the fan, and the other end is fixed and connected to the bottom of the collection hood 12 through the buffer material channel 13. One end of the second pipe 17 is connected to the air outlet of the fan, and the other end is fixed and connected to the collection bin.

[0077] During operation, the centrifugal fan 15 is started, creating negative pressure in the first pipe 14 to suck up material and high pressure in the second pipe 17 to push material, thereby guiding the material falling into the collection hood 12 into the collection bin. Since the fan is located between the first pipe 14 and the second pipe 17, a centrifugal fan 15 is used to prevent powder from entering the fan and causing damage.

[0078] like Figure 4 As shown, a spiral-shaped guide vane 19 is installed on the inner wall of the negative pressure suction pipe. The guide vane 19 is arranged along the flow direction of the material, preventing material from accumulating and clogging in the pipe, ensuring the stable operation of the material collection mechanism, and improving the material transmission efficiency. Since the first pipe 14 is in a vertical state, the material in the first pipe 14 can be smoothly conveyed backward under the combined action of gravity and suction. The second pipe 17 is in a horizontal state, so it is preferable to install the guide vane 19 on the second pipe 17. Of course, the guide vane 19 can also be installed on the inner wall of the first pipe 14 to further improve the conveying effect.

[0079] This catalyst surface powder scraping machine uses a clamping mechanism to hold and fix the catalyst. The scraping mechanism automatically rotates and scrapes the fixed catalyst surface. The scraped material enters a moving chamber through a negative pressure suction pipe. After scraping is complete, the moving chamber is removed from the fixed chamber, the material is transferred to other containers for storage, and then the moving chamber is installed back into the fixed chamber for subsequent use. The automatic scraping of the catalyst surface greatly improves work efficiency.

[0080] Because the mobile chamber needs to be repeatedly disassembled and reassembled with the negative pressure suction pipeline, in order to improve the docking efficiency between the mobile chamber and the negative pressure suction pipeline, the collection chamber is set as a separate fixed chamber and mobile chamber. The fixed chamber is used to fix the discharge end of the negative pressure suction pipeline and provide a reference for the installation of the mobile chamber. During installation, the mobile chamber is placed in the fixed chamber, and the clamping component is used to clamp the mobile chamber inward so that its inlet is connected with the discharge end of the negative pressure suction pipeline, and the stability of the connection is ensured, so that all the material can enter the mobile chamber. After scraping is completed, the clamping component is released outward, and the mobile chamber can be lifted and separated from the fixed chamber to achieve complete material removal, which is convenient for subsequent material processing.

[0081] Moreover, the removable mobile chamber facilitates the removal of materials from the chamber and subsequent cleaning, preventing the mixing of different catalyst powders and ensuring the accuracy of the test.

[0082] In addition, the catalyst surface powder scraper uses a negative pressure suction pipe to absorb the scraped powder, ensuring that the powder is fully collected. Moreover, the assembled mobile chamber has no exposed openings and is in a closed state, preventing the powder from spilling into the working environment. This avoids equipment failure and downtime due to dust issues, reduces downtime, and ensures the continuity and stability of the scraping process. On the other hand, it also provides a good working environment for the operators.

[0083] The above are merely preferred embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A catalyst surface powder scraping machine comprising a work table, characterized in that, A workbench is fixed with: a clamping mechanism for clamping a catalyst; a scraping mechanism for rotating and scraping the surface of the catalyst; and a material collecting mechanism including a collecting cover, a negative pressure material suction pipeline and a collecting bin, the collecting cover is fixed below the clamping mechanism and has an upward opening, the negative pressure material suction pipeline is fixed and communicated with the bottom of the collecting cover, and the outlet end of the negative pressure material suction pipeline is communicated with the collecting bin. The collecting bin includes: a fixed bin with an open top, first and second side walls arranged oppositely, the outlet end of the negative pressure material suction pipeline extends into the fixed bin and is fixed therewith, and a tightening assembly is fixed on the second side wall; and a movable bin movably located in the fixed bin, the movable bin is provided with an inlet opening on one side facing the first side wall of the fixed bin, and the tightening assembly can inwardly tighten the movable bin to make the inlet opening of the movable bin butt joint with the outlet end of the negative pressure material suction pipeline. A sealing ring is sleeved on the outer wall of the outlet end of the negative pressure material suction pipeline, after the negative pressure material suction pipeline is butt jointed with the movable bin, the outlet end of the negative pressure material suction pipeline extends into the movable bin, and at this time, the sealing ring is located outside the movable bin and is in a squeezed state. A screen is arranged in the middle of the movable bin, a particle chamber is formed above the screen, and a powder chamber is formed below the screen, a powder outlet opening is arranged on the powder chamber, and a detachable plug is arranged on the powder outlet opening.

2. The catalyst surface powder scalper according to claim 1, characterized in that, A detachable upper cover is arranged on the top of the movable bin, and the screen can be detached and taken out.

3. The catalyst surface powder shaving machine according to claim 1, characterized in that, The tightening assembly includes:

4. The catalyst surface powder scalper of claim 3, wherein, a threaded lifting rod which is threadedly connected with a through hole on the second side wall of the fixed bin, one end of the threaded lifting rod extends into the fixed bin, and the other end is located outside the fixed bin.

5. The catalyst surface powder shaving machine according to claim 1, characterized in that, The clamping mechanism includes: a first lifting rod having one end connected with a motor for driving the first lifting rod to rotate, the motor is fixed on the workbench, and the clamping end of the first lifting rod is provided with a coaxial first positioning groove; and 6. The catalyst surface powder scalper of claim 1, wherein, a second lifting rod which is rotatably fixed on the workbench, the second lifting rod is coaxially arranged with the first lifting rod and has an adjustable spacing, and the clamping end of the second lifting rod is provided with a coaxial second positioning groove. The scraping mechanism includes: a scraping knife; and 7. The catalyst surface powder scalper of claim 1, wherein, a position adjusting assembly which is fixed with the scraping knife and is used for adjusting the relative position between the scraping knife and the catalyst. The position adjusting assembly is a cross slide, the scraping knife is fixed above the cross slide, and one displacement direction of the cross slide is parallel to the axial direction of the catalyst. The negative pressure material suction pipeline includes:

8. The catalyst surface powder scalper of claim 7, wherein, a centrifugal fan; 9. The catalyst surface powder scalper of claim 1, wherein, a first pipeline having one end communicated with the air inlet of the fan and the other end fixed and communicated with the bottom of the collecting cover; and a second pipeline having one end communicated with the air outlet of the fan and the other end fixed and communicated with the collecting bin. Spiral guide vanes are arranged on the inner wall of the negative pressure material suction pipeline. ​ 10. The catalyst surface powder scalper of claim 1, wherein, ​

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