Naphthalene-method phthalic anhydride catalyst screening and recycling equipment

Abstract

The utility model relates to the technical field of catalyst screening and recycling, in particular to naphthalene method phthalic anhydride catalyst screening and recycling equipment. According to the technical scheme, the device comprises a vibrating screen and a regeneration furnace, and further comprises a top cover which covers an opening in the top end of the vibrating screen and enables materials poured into the vibrating screen not to float everywhere; and the quantifying mechanism is arranged on the top cover and is used for preventing materials poured into the vibrating screen from being blocked. Through the cooperation of the top cover, the quantifying mechanism, the dredging mechanism, the vibrating screen, the regeneration furnace and other structures, materials are directly conveyed to the vibrating screen, the caked materials or the caked materials are smashed firstly, then the treated materials are quantitatively conveyed into the vibrating screen, and then accumulation and blockage can be prevented. And meanwhile, materials can be uniformly distributed on the screen, so that the screening efficiency is improved, and more qualified products are ensured to pass through. And in addition, accumulation is reduced, the screening precision can be improved, it is guaranteed that the quality of output products is higher, and unqualified products are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst screening and recovery, in particular to naphthalene-based phthalic anhydride catalyst screening and recovery equipment. Background Art

[0002] Naphthalene-based phthalic anhydride catalyst is a catalyst used to promote chemical reactions and is commonly used in organic synthesis, especially in polymerization reactions and the synthesis of certain aromatic compounds. Naphthalene-based phthalic anhydride catalysts are usually in the form of powder or granules, and naphthalene-based phthalic anhydride catalysts are usually recovered after screening. The screening process can separate the catalyst from the reaction mixture for reuse. Commonly used screening equipment includes vibrating screens, etc. Recycling catalysts can not only reduce production costs, but also improve resource utilization efficiency. Commonly used recycling equipment includes regeneration furnaces, etc. At present, in the screening process of naphthalene-based phthalic anhydride catalysts, when the material is directly poured into the screening equipment, the interaction force between the material particles (such as friction and adhesion) will increase, making it difficult for the particles to move freely, thereby forming accumulated materials, which will then hinder the normal screening process, thereby reducing the screening efficiency and affecting the final yield. Utility Model Content

[0003] The utility model aims to address the problem that in the current screening process of naphthalene-based phthalic anhydride catalyst, when all materials are directly poured into the screening equipment, the interaction force (such as friction and adhesion) between the material particles will increase, making it difficult for the particles to move freely, thereby forming a pile of materials, which will then hinder the normal screening process, thereby reducing the screening efficiency and affecting the final yield. The utility model proposes a naphthalene-based phthalic anhydride catalyst screening and recovery device.

[0004] The technical solution of the utility model is as follows: a naphthalene-based phthalic anhydride catalyst screening and recovery device comprises a vibrating screen and a regeneration furnace, and further comprises: a top cover, which is arranged at the top opening of the vibrating screen so that materials poured into the vibrating screen cannot float around; a quantitative mechanism arranged on the top cover so that the materials poured into the vibrating screen cannot be blocked; and a dredging mechanism with a switch linked to the quantitative mechanism, which is installed on the top of the quantitative mechanism and stirs and disperses the materials fed into the vibrating screen.

[0005] Optionally, the quantitative mechanism includes a feed bin fixedly connected to the upper surface of the vibrating screen, the upper surface of the top cover is also fixedly connected to a support seat, the top end of the support seat is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a first pulley, the inner wall of the feed bin is provided with a feed block, the end of the first pulley away from the motor moves through the feed bin and is fixedly connected to one end of the feed block, and the other end of the feed block is rotatably connected to the inner wall of the feed bin.

[0006] Optionally, the dredging mechanism includes a mixing bin fixedly connected to the top of the feed bin, the outer wall of the mixing bin is fixedly connected to a support frame, the support frame is rotatably connected to a second pulley and a main gear, the first pulley and the main gear are fixedly connected, the second pulley and the first pulley are provided with a transmission belt, and the support frame is also rotatably connected to a driving rod, the driving rod is fixedly provided with a secondary gear meshing with the main gear, and a beating block is provided inside the mixing bin, one end of the driving rod is movably passed through the mixing bin and is fixedly connected to one end of the beating block, and the other end of the beating block is rotatably connected to the inner wall of the mixing bin.

[0007] Optionally, an observation window for viewing the material feeding of the quantitative mechanism is provided on the upper surface of the top cover.

[0008] Optionally, a recycling port is provided on the top outer wall of the vibrating screen, and a feed pipe is provided at the bottom end of the recycling port and the top end of the regeneration furnace.

[0009] Optionally, the top of the mixing bin is rotatably connected to a rotating suction pipe, and the end of the rotating suction pipe away from the mixing bin is fixedly connected to a corrugated hose.

[0010] Optionally, a plurality of handles distributed in a circular array are fixedly connected to the outer wall of one end of the rotary suction tube close to the corrugated hose.

[0011] Optionally, a discharge port is fixedly connected to the middle outer wall of the vibrating screen.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] This utility model utilizes a combination of a top cover, a metering mechanism, a dredging mechanism, a vibrating screen, and a regeneration furnace to deliver material directly to the vibrating screen, first breaking up any clumped or aggregated material before quantitatively delivering the processed material to the vibrating screen, thereby preventing accumulation and clogging. It also enables even distribution of material across the screen, thereby improving screening efficiency and ensuring that more qualified product passes through. Furthermore, reducing accumulation helps improve screening accuracy, ensuring higher-quality output and reducing the occurrence of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a naphthalene-based phthalic anhydride catalyst screening and recovery device is provided;

[0015] Figure 2 for Figure 1 Schematic diagram of part of the structure;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0017] Figure 4 for Figure 2 Schematic diagram of a partial cross-section structure.

[0018] Figure numerals: 1. Vibrating screen; 11. Top cover; 12. Observation window; 13. Support seat; 14. Motor; 15. First pulley; 16. Drive belt; 17. Recovery port; 18. Discharge port; 2. Regeneration furnace; 121. Feed pipe; 3. Feed bin; 31. Feed block; 4. Mixing bin; 41. Beating block; 5. Support frame; 51. Second pulley; 52. Main gear; 53. Driving rod; 54. Secondary gear; 6. Rotating suction pipe; 61. Corrugated hose; 62. Handle. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0021] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Example

[0026] like Figures 1 to 4 As shown, the screening and recovery equipment for naphthalene-based phthalic anhydride catalyst proposed in the present invention includes a vibrating screen 1 and a regeneration furnace 2. The vibrating screen 1 used for the naphthalene-based phthalic anhydride catalyst is generally a device for screening and grading catalyst particles. This vibrating screen 1 can effectively separate catalyst particles according to size, thereby removing larger impurities and unqualified particles, ensuring the uniformity and activity of the catalyst; the regeneration furnace 2 is a device for restoring and regenerating the activity of the catalyst. During the catalytic reaction process, the catalyst may lose its activity due to carbon deposits, pollutants or other factors. The main function of the regeneration furnace is to remove these impurities through specific temperature and atmosphere conditions, so that the catalyst can restore its original performance. A discharge port 18 is fixedly connected to the middle outer wall of the vibrating screen 1, and the function of the discharge port 18 is to allow the finished material that meets the standards to be discharged from it. The top outer wall of the vibrating screen 1 is provided with a recycling port 17, and a feeding pipe 121 is provided at the bottom end of the recycling port 17 and the top end of the regeneration furnace 2. The vibrating screen 1 also includes: a top cover 11, the upper surface of which is provided with an observation window 12 for viewing the feeding of the quantitative mechanism. The observation window 12 is provided with glass, which allows a clear view of the material on the inner vibrating screen 1 to prevent material blockage. A cover is provided on the top opening of the vibrating screen 1 to prevent the material poured into the vibrating screen 1 from floating around; a quantitative mechanism is provided on the top cover 11 to prevent the material poured into the vibrating screen 1 from being blocked; and a dredging mechanism that is linked to the quantitative mechanism is installed on the top of the quantitative mechanism and stirs and disperses the material fed into the vibrating screen 1.

[0027] Furthermore, the quantitative mechanism includes a feed bin 3 fixedly connected to the upper surface of the vibrating screen 1, and the upper surface of the top cover 11 is also fixedly connected to a support base 13, the top of the support base 13 is fixedly connected to a motor 14, the output shaft of the motor 14 is fixedly connected to a first pulley 15, and the inner wall of the feed bin 3 is provided with a feed block 31, and the end of the first pulley 15 away from the motor 14 moves through the feed bin 3 and is fixedly connected to one end of the feed block 31, and the other end of the feed block 31 is rotatably connected to the inner wall of the feed bin 3.

[0028] Furthermore, the dredging mechanism includes a mixing bin 4 fixedly connected to the top of the feed bin 3, and the top of the mixing bin 4 is rotatably connected to a rotary suction pipe 6. The rotary suction pipe 6 has the same principle as the feed pipe 121, and both generate negative pressure through equipment such as pumps or fans. When negative pressure is formed, external air will enter through the pipe, thereby guiding the material (such as particles, powder or liquid) to move along the pipe. The end of the rotary suction pipe 6 away from the mixing bin 4 is fixedly connected to a corrugated hose 61. The function of the corrugated hose 61 is to allow one end of the rotary suction pipe 6 to easily move a certain distance when necessary, and the bottom end of the corrugated hose 61 is in direct contact with the ground. The outer wall of the end of the rotary suction pipe 6 close to the corrugated hose 61 is fixedly connected to a plurality of handles 62 distributed in a circular array. The function of the handle 62 is to facilitate the control of the rotation of the rotary suction pipe 6 so that there is a point of force for the hand. The outer wall of the mixing silo 4 is fixedly connected to a support frame 5, on which a second pulley 51 and a main gear 52 are rotatably connected. The first pulley 15 and the main gear 52 are fixedly connected. A transmission belt 16 is sleeved on the second pulley 51 and the first pulley 15. A driving rod 53 is also rotatably connected to the support frame 5. A secondary gear 54 is fixedly sleeved on the driving rod 53 and meshed with the main gear 52. A beating block 41 is provided inside the mixing silo 4. The feed block 31 is several times larger than the beating block 41. When the feed block 31 rotates one circle, the beating block 41 will rotate many circles due to the design of the dredging mechanism, which makes the beating block 41 rotate faster and the material is dispersed better. One end of the driving rod 53 is movable through the mixing silo 4 and is fixedly connected to one end of the beating block 41. The other end of the beating block 41 is rotatably connected to the inner wall of the mixing silo 4.

[0029] In the present embodiment, when it is necessary to use naphthalene-based phthalic anhydride catalyst screening and recovery equipment, such as Figure 1As shown, by turning on the rotary suction pipe 6 so that the rotary suction pipe 6 drives one end of the corrugated hose 61 to generate suction, the corrugated hose 61 can be moved away from the end of the rotary suction pipe 6 to transport the material through the rotary suction pipe 6 into the mixing bin 4. At this time, by starting the motor 14 on the support base 13, the output shaft of the motor 14 drives the first pulley 15 to rotate. The first pulley 15 drives the second pulley 51 to rotate through the transmission belt 16. The second pulley 51 drives the main gear 52 to rotate. Since the main gear 52 and the secondary gear 54 are meshed and connected, the secondary gear 54 drives the material block 41 to rotate through the driving rod 53, thereby breaking the material passing through the mixing bin 4. At the same time, the rotation of the first pulley 15 will also drive the feed block 31 in the feed bin 3 to rotate, thereby quantitatively rotating the material in the mixing bin 4 into the vibrating screen 1 for vibrating screening. Through the observation window 12 on the top cover 11, the material flowing into the vibrating screen 1 from the mixing hopper 4 can be directly observed, preventing the material from flowing directly into the vibrating screen 1 and thus preventing the accumulation of material inside the vibrating screen 1 and the resulting poor screening effect. By activating the rotary suction pipe 6, one end of the rotary suction pipe 6 can be used to transport the screened material through the recycling port 17 to the regeneration furnace 2 for recycling. The material that meets the screening standards is discharged through the discharge port 18 and can be caught in a container in advance.

[0030] The preferred embodiments of the present invention described above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A naphthalene-based phthalic anhydride catalyst screening and recovery device, comprising a vibrating screen (1) and a regeneration furnace (2), characterized in that: Also includes: A top cover (11) is provided on the top opening of the vibrating screen (1) so that the material poured into the vibrating screen (1) cannot float around; A quantitative mechanism is provided on the top cover (11) to prevent the material poured into the vibrating screen (1) from being blocked; The dredging mechanism, which is linked to the quantitative mechanism and switches, is installed on the top of the quantitative mechanism and stirs and disperses the materials fed into the vibrating screen (1).

2. Naphthalene-based phthalic anhydride catalyst screening and recovery equipment according to claim 1, is characterized in that, The quantitative mechanism comprises a feeding bin (3) fixedly connected to the upper surface of the vibrating screen (1); the upper surface of the top cover (11) is also fixedly connected to a support seat (13); the top end of the support seat (13) is fixedly connected to a motor (14); the output shaft of the motor (14) is fixedly connected to a first pulley (15); the inner wall of the feeding bin (3) is provided with a feeding block (31); one end of the first pulley (15) away from the motor (14) movably passes through the feeding bin (3) and is fixedly connected to one end of the feeding block (31); the other end of the feeding block (31) is rotatably connected to the inner wall of the feeding bin (3).

3. naphthalene-based phthalic anhydride catalyst screening and recovery equipment according to claim 2, is characterized in that, The dredging mechanism comprises a mixing bin (4) fixedly connected to the top of the feeding bin (3); the outer wall of the mixing bin (4) is fixedly connected to a support frame (5); a second pulley (51) and a main gear (52) are rotatably connected to the support frame (5); the first pulley (15) and the main gear (52) are fixedly connected; a transmission belt (16) is sleeved on the second pulley (51) and the first pulley (15); a driving rod (53) is also rotatably connected to the support frame (5); a secondary gear (54) meshing with the main gear (52) is fixedly sleeved on the driving rod (53); a beating block (41) is provided inside the mixing bin (4); one end of the driving rod (53) movably passes through the mixing bin (4) and is fixedly connected to one end of the beating block (41); the other end of the beating block (41) is rotatably connected to the inner wall of the mixing bin (4).

4. Naphthalene-based phthalic anhydride catalyst screening and recovery equipment according to claim 1, is characterized in that, An observation window (12) for viewing the feeding of the quantitative mechanism is provided on the upper surface of the top cover (11).

5. The naphthalene-based phthalic anhydride catalyst screening and recovery equipment according to claim 1, wherein A recycling port (17) is provided on the top outer wall of the vibrating screen (1), and a material delivery pipe (121) is provided at the bottom end of the recycling port (17) and the top end of the regeneration furnace (2).

6. The naphthalene-based phthalic anhydride catalyst screening and recovery equipment according to claim 3, wherein The top end of the mixing bin (4) is rotatably connected to a rotary suction pipe (6), and one end of the rotary suction pipe (6) away from the mixing bin (4) is fixedly connected to a corrugated hose (61).

7. The naphthalene-based phthalic anhydride catalyst screening and recovery equipment according to claim 6, wherein A plurality of handles (62) distributed in a circumferential array are fixedly connected to the outer wall of one end of the rotary suction pipe (6) close to the corrugated hose (61).

8. The naphthalene-based phthalic anhydride catalyst screening and recovery equipment according to claim 1, wherein A discharge port (18) is fixedly connected to the middle outer wall of the vibrating screen (1).

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