Catalyst recycling device for antioxidant production

Abstract

This utility model discloses a catalyst recycling device for antioxidant production, relating to the field of chemical technology. The device includes a reaction vessel, a first motor, a feed pipe, a control panel, and a separation tank. The separation tank is equipped with a rotary filter assembly, which includes a fixed base, a mounting base, and a separation screen. A second motor drives the separation screen to rotate within the separation tank. The reaction products entering the separation tank are diverted by the rotation of the screen; the liquid flows out through the screen holes and exits the separation tank via the outlet pipe. Solid particles, such as the catalyst, are trapped within the screen, achieving solid-liquid separation and catalyst recovery. This allows the liquid to quickly flow out through the screen holes. The centrifugal force significantly accelerates the liquid separation speed, drastically reducing separation time compared to static filtration and significantly improving overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, and in particular to a catalyst recycling device for antioxidant production. Background Technology

[0002] Antioxidants play a crucial role in industrial production, especially in the field of polymer materials. They can effectively inhibit or slow down the oxidative degradation of polymer materials, significantly extend the service life of products, and maintain their performance. In the production process of antioxidants, catalysts play an indispensable role. They can lower the activation energy of the reaction, accelerate the reaction rate, and promote the reaction to proceed efficiently in the direction of generating antioxidants. However, the use of catalysts is not a one-time solution. Effective recovery of catalysts after the reaction has become a key and challenging step.

[0003] Currently, in the antioxidant production industry, after the mixing reaction is completed, the reaction system contains not only the generated antioxidant product, but also unreacted raw materials and catalysts. Traditional separation methods often employ simple filtration to try to separate the catalyst from the mixture. In some antioxidant production processes involving liquid-phase reactions, the liquid after the mixing reaction often presents a complex state. Catalyst particles may form a relatively stable mixture with unreacted raw materials, intermediate products, and generated antioxidants. Ordinary filtration equipment, such as filter paper filtration or simple screen filtration, is difficult to completely separate the catalyst particles from this complex mixture. This is because the catalyst particles may be encapsulated by other surrounding substances, or due to their small particle size, they may easily clog the pores of the filter medium during the filtration process, resulting in low filtration efficiency and extremely low catalyst recovery rate. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a catalyst recycling device for antioxidant production. This device can solve the problem that ordinary filtration equipment, filter paper filtration or simple screen filtration, cannot completely separate catalyst particles from such complex mixtures. This is because the catalyst particles may be wrapped by other surrounding substances, or because the particle size itself is small, it is easy to block the pores of the filter medium during the filtration process, resulting in low filtration efficiency and extremely low catalyst recovery rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a catalyst recycling device for antioxidant production, comprising a reaction vessel, a first electric motor, a feed pipe, a control panel, and a separation tank, wherein a rotary filter assembly is provided on the separation tank;

[0006] The rotary filter assembly includes a fixed base, a mounting base, and a separating screen cylinder. The lower outer wall of the separating screen cylinder is rotatably connected to the upper surface of the mounting base. A second motor is fixedly mounted on the lower surface of the mounting base. The fixed base is fixedly mounted on the lower outer wall of the separating tank. A liquid outlet pipe is fixedly mounted on the lower outer wall of the separating tank. The outer wall of the fixed base has a mounting base groove.

[0007] Among them, three of the six protrusions on the fixed base have T-shaped block grooves on their lower surfaces, and the other three protrusions on the fixed base have adjusting bolts threadedly connected to their outer walls. The inner wall of the mounting base slide groove has three first limiting block grooves, and the interior of each of the three first limiting block grooves is slidably connected to a limiting block. The outer wall of the mounting base has three second limiting block grooves.

[0008] Preferably, the output end of the second motor extends rotatably to the outside of the mounting base and is fixedly connected to one end of the separating screen cylinder, the inside of the liquid outlet pipe communicates with the inside of the separating tank, and the inside of the mounting base slide groove communicates with the inside of the separating tank;

[0009] The outer wall of the mounting base is slidably connected to the inside of the mounting base groove, and the separation screen cylinder is located inside the separation tank.

[0010] Preferably, the outer walls of the three T-shaped blocks on the outer wall of the mounting base are slidably connected to the interior of the corresponding T-shaped block grooves;

[0011] Among them, the ends of the three limiting blocks near the second limiting block grooves all slide into the interior of the mounting base groove and are respectively slidably connected to the interior of the corresponding second limiting block grooves.

[0012] Preferably, the interiors of the three first limiting block slots are respectively connected to the interiors of the protrusions on the corresponding fixing seats;

[0013] Among them, the ends of the three adjusting bolts near the limiting blocks are all threaded into the interior of the first limiting block groove and are rotatably connected to the outer wall of the corresponding limiting blocks. The upper end of the separation tank is connected to the lower end of the reactor outlet through a flange and bolts.

[0014] Preferably, the reactor is internally connected to a stirring shaft, and the first motor is fixedly mounted on the upper surface of the reactor;

[0015] The output end of the first motor extends into the interior of the reactor and is fixedly connected to one end of the stirring shaft, while the feed pipe is fixedly installed on the upper surface of the reactor.

[0016] Preferably, the interior of the reactor is connected to the interior of the feed pipe, and the control panel is fixedly installed on the upper outer wall of the reactor;

[0017] The first motor is electrically connected to the control panel, the second motor is electrically connected to the control panel, and the interior of the reactor is connected to the interior of the separation tank.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This catalyst recycling device for antioxidant production utilizes a rotating filter assembly. A second motor drives a separation screen cylinder to rotate within the separation tank. The reaction products entering the tank are dispersed as liquid through the screen's openings and discharged through an outlet pipe. Solid particles, such as the catalyst, are trapped within the screen, achieving solid-liquid separation and catalyst recovery. This allows the liquid to quickly pass through the screen. Centrifugal force significantly accelerates the liquid separation, drastically reducing separation time compared to static filtration and significantly improving overall production efficiency, meeting the demands of large-scale industrial production. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the reaction vessel of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the separator of this utility model;

[0024] Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.

[0025] Reference numerals in the attached drawings: 1. Reactor; 2. First motor; 3. Feed pipe; 4. Control panel; 5. Separator; 6. Mounting base; 7. Adjusting bolt; 8. Discharge pipe; 9. Mounting base; 10. Second motor; 11. Separation sieve cylinder; 12. Stirring shaft; 13. T-shaped block groove; 14. First limiting block groove; 15. Limiting block; 16. Second limiting block groove; 17. Mounting base slide groove. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a catalyst recycling device for antioxidant production, comprising a reaction vessel 1, a first electric motor 2, a feed pipe 3, a control panel 4, and a separation tank 5;

[0031] The separator 5 is equipped with a rotary filter assembly;

[0032] The rotary filter assembly includes a fixed base 6, a mounting base 9, and a separating screen cylinder 11. The lower outer wall of the separating screen cylinder 11 is rotatably connected to the upper surface of the mounting base 9. A second motor 10 is fixedly mounted on the lower surface of the mounting base 9. The output end of the second motor 10 extends rotatably to the outside of the mounting base 9 and is fixedly connected to one end of the separating screen cylinder 11. The fixed base 6 is fixedly mounted on the lower outer wall of the separating tank 5. A liquid outlet pipe 8 is fixedly mounted on the lower outer wall of the separating tank 5, and the interior of the liquid outlet pipe 8 communicates with the interior of the separating tank 5. The outer wall of the fixed base 6 has a mounting base groove 17, and the interior of the mounting base groove 17 communicates with the interior of the separating tank 5. The outer wall of the mounting base 9 is slidably connected to the interior of the mounting base groove 17. The separating screen cylinder 11 is located inside the separating tank 5. Three of the six protrusions on the fixed base 6 have T-shaped block grooves 13 on their lower surfaces. The outer walls of the three T-shaped blocks on the outer wall of the mounting base 9 are respectively... The three protrusions on the fixed seat 6 are threaded with adjusting bolts 7 and are slidably connected to the inner wall of the corresponding T-shaped slot 13. The inner wall of the mounting seat slide groove 17 is provided with three first limiting block slots 14. The inner wall of the three first limiting block slots 14 is slidably connected with limiting blocks 15. The outer wall of the mounting seat 9 is provided with three second limiting block slots 16. The end of the three limiting blocks 15 near the second limiting block slots 16 is slidably extended into the interior of the mounting seat slide groove 17 and is slidably connected to the interior of the corresponding second limiting block slots 16. The interior of the three first limiting block slots 14 is respectively connected to the interior of the protrusions on the corresponding fixed seat 6. The end of the three adjusting bolts 7 near the limiting blocks 15 is threaded into the interior of the first limiting block slots 14 and is rotatably connected to the outer wall of the corresponding limiting blocks 15. The upper end of the separation tank 5 is connected to the lower end of the reactor 1 discharge port through a flange and bolts.

[0033] The reactor 1 is rotatably connected to a stirring shaft 12. A first motor 2 is fixedly installed on the upper surface of the reactor 1. The output end of the first motor 2 extends rotatably into the interior of the reactor 1 and is fixedly connected to one end of the stirring shaft 12. A feed pipe 3 is fixedly installed on the upper surface of the reactor 1. The interior of the reactor 1 is connected to the interior of the feed pipe 3. A control panel 4 is fixedly installed on the upper outer wall of the reactor 1. The first motor 2 is electrically connected to the control panel 4. The second motor 10 is electrically connected to the control panel 4. The interior of the reactor 1 is connected to the interior of the separation tank 5.

[0034] Furthermore, when using this device, the raw materials required for producing antioxidants are transported into the reactor 1 through the feed pipe 3. The operator sets the operating parameters of the first motor 2 on the control panel 4 and starts the first motor 2. The first motor 2 drives the stirring shaft 12 to rotate inside the reactor 1, thoroughly stirring the raw materials to ensure uniform mixing and accelerate the reaction. The antioxidant production reaction is completed inside the reactor 1. After the reaction is completed, the reaction product enters the separation tank 5 through the discharge port at the lower end of the reactor 1 and the channel connected by the flange and bolts. Before the reaction product enters the separation tank 5, the status of the second motor 10 and other equipment is checked through the control panel 4. After confirming that the rotary filter assembly is installed and fixed, the operating parameters of the second motor 10 are set on the control panel 4, and the second motor 10 is started. The second motor 10 drives the separation screen cylinder 11 to rotate inside the separation tank 5. The reaction products entering the separator 5 are rotated, and the liquid flows out through the sieve holes of the separator sieve 11 and is discharged from the separator 5 through the liquid outlet pipe 8. The solid particles such as the catalyst are intercepted in the separator sieve 11, realizing solid-liquid separation and completing the catalyst recovery. After the catalyst recovery is completed, the adjusting bolt 7 is rotated to push the limiting block 15 to slide in the first limiting block groove 14, and the limiting block 15 is removed from the second limiting block groove 16 of the mounting seat 9. At this time, the mounting seat 9 can slide in the mounting seat slide groove 17. The mounting seat 9 and the separator sieve 11 and other components on it are removed from the separator 5 for further processing of the catalyst recovered in the separator sieve 11. At the same time, the separator sieve 11 can also be cleaned for the next use. After processing, the rotary filter assembly is reinstalled to prepare for the next antioxidant production and catalyst recovery.

[0035] In the rotary filter assembly, the second motor 10 drives the separation screen cylinder 11 to rotate within the separation tank 5. The reaction products entering the separation tank 5 are dispersed through the screen holes of the separation screen cylinder 11 under the rotational action of the screen cylinder 11, and discharged from the separation tank 5 via the outlet pipe 8. Meanwhile, solid particles such as the catalyst are trapped within the separation screen cylinder 11, achieving solid-liquid separation and completing catalyst recovery. This allows the liquid to quickly flow out through the screen holes of the separation screen cylinder 11. The centrifugal force significantly accelerates the liquid separation speed, greatly shortening the separation time compared to static filtration, significantly improving overall production efficiency, and meeting the needs of large-scale industrial production.

[0036] Structural Description: Reactor 1: As the core reaction vessel for antioxidant production, it is internally connected to a stirring shaft 12 for mixing and stirring the reaction raw materials to ensure the reaction proceeds fully. The first motor 2 and the feed pipe 3 are fixedly installed on the upper surface of the reactor 1. The first motor 2 provides rotational power to the stirring shaft 12, and the feed pipe 3 is the channel for the raw materials to enter the reactor 1. The interior of the reactor 1 is connected to the interior of the feed pipe 3. Its lower outlet is connected to the upper end of the separator 5 through a flange and bolts to realize the transfer of reaction products to the separator 5. In addition, a control panel 4 is fixedly installed on the upper outer wall of the reactor 1 to control the operation of the first motor 2 and other components.

[0037] First electric motor 2: It is fixedly installed on the upper surface of the reactor 1, and its output end extends into the interior of the reactor 1 and is fixedly connected to one end of the stirring shaft 12. It drives the stirring shaft 12 to rotate inside the reactor 1 by outputting power, so that the reaction raw materials are fully mixed, the reaction speed is accelerated, and the antioxidant production reaction is carried out uniformly and efficiently.

[0038] Feed pipe 3: It is fixedly installed on the upper surface of the reactor 1 and its interior is connected to the interior of the reactor 1. It is a channel for transporting the raw materials required for the production of antioxidants into the interior of the reactor 1. Operators can conveniently add various reaction raw materials into the reactor 1 through the feed pipe 3.

[0039] Control panel 4: Fixedly installed on the upper outer wall of reactor 1, electrically connected to the first motor 2 and the second motor 10, it is the control center of the entire device. Operators can set the operating parameters of the first motor 2 and the second motor 10, such as speed and running time, through the control panel 4 to achieve precise control of the reaction process and catalyst recovery process.

[0040] Separator 5: It is mainly used to separate the reaction products generated in reactor 1 in order to recover the catalyst. Its upper end is connected to the lower end of reactor 1 through flange and bolts to ensure that the reaction products can enter the separator 5 smoothly. The lower outer wall of separator 5 is fixedly installed with a fixing seat 6 and a liquid outlet pipe 8. The interior of the liquid outlet pipe 8 is connected to the interior of separator 5 and is used to discharge the separated liquid. The separator 5 is equipped with a rotary filter assembly to realize the solid-liquid separation of the reaction products.

[0041] Fixed seat 6: Fixedly installed on the lower outer wall of the separator tank 5, it serves to support and fix the rotating filter assembly. Its outer wall has a mounting seat groove 17, the interior of which communicates with the interior of the separator tank 5, providing a track and space for the sliding of the mounting seat 9. Three of the six protrusions on the fixed seat 6 have T-shaped block grooves 13 on their lower surfaces, which are used to cooperate with the T-shaped blocks on the outer wall of the mounting seat 9 to achieve the initial positioning of the mounting seat 9. The outer walls of the other three protrusions are threaded with adjusting bolts 7. By cooperating with the limiting block 15, the mounting seat 9 is fixed and limited.

[0042] Adjusting bolt 7: Threaded to the outer wall of the three protrusions on the fixed seat 6, with one end near the limiting block 15 extending into the interior of the first limiting block groove 14 and rotatably connected to the outer wall of the corresponding limiting block 15. By rotating the adjusting bolt 7, the limiting block 15 can be pushed to slide in the first limiting block groove 14, thereby fixing and loosening the mounting seat 9, which facilitates the installation, disassembly and position adjustment of the mounting seat 9.

[0043] Discharge pipe 8: Fixedly installed on the lower outer wall of the separator 5, its interior is connected to the interior of the separator 5, and it is the discharge channel for the separated liquid in the separator 5. The liquid separated by the rotary filter assembly is discharged from the separator 5 through the discharge pipe 8 for subsequent processing.

[0044] Mounting seat 9: The outer wall of the mounting seat 9 is slidably connected to the mounting seat groove 17 of the fixed seat 6, and can be installed and disassembled in the separation tank 5. The second motor 10 is fixedly installed on the lower surface of the mounting seat 9, and the upper surface is rotatably connected to the lower outer wall of the separation screen cylinder 11. The outer wall of the mounting seat 9 is provided with three T-shaped blocks, which respectively cooperate with the T-shaped block groove 13 on the fixed seat 6 to achieve preliminary positioning. The outer wall is also provided with three second limiting block grooves 16, which cooperate with the limiting block 15, and the mounting seat 9 is fixed under the action of the adjusting bolt 7.

[0045] The second motor 10 is fixedly installed on the lower surface of the mounting base 9. Its output end extends to the outside of the mounting base 9 and is fixedly connected to one end of the separation sieve cylinder 11. It provides power for the rotation of the separation sieve cylinder 11. The operation of the second motor 10 is controlled by the control panel 4, which can make the separation sieve cylinder 11 rotate at a suitable speed to achieve efficient separation of reaction products.

[0046] Separating screen cylinder 11: The lower outer wall is rotatably connected to the upper surface of the mounting base 9. It is located inside the separation tank 5 and is the core component of the rotary filter assembly. Driven by the second motor 10, the separating screen cylinder 11 rotates inside the separation tank 5 to separate the reaction products entering the separation tank 5 into solid and liquid components. The screen hole design of the separating screen cylinder 11 allows the liquid to flow out through the screen holes, while solid particles such as catalysts are intercepted inside the screen cylinder, thus realizing the recovery of the catalyst.

[0047] Stirring shaft 12: Rotatably connected inside the reactor 1, with one end fixedly connected to the output end of the first motor 2. Driven by the first motor 2, it rotates inside the reactor 1 to stir the reaction raw materials, promote the reaction, and make the reaction more complete and uniform.

[0048] Limiting block 15: It is slidably connected inside the three first limiting block grooves 14. One end near the second limiting block groove 16 can slide into the mounting base slide groove 17 and slidely connect with the corresponding second limiting block groove 16. Under the action of adjusting bolt 7, the limiting block 15 can slide in the first limiting block groove 14 to fix and loosen the mounting base 9, ensuring the stability of the mounting base 9 during operation, and facilitating the disassembly and maintenance of the mounting base 9.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A catalyst recycling device for antioxidant production, comprising a reaction vessel (1), a first electric motor (2), a feed pipe (3), a control panel (4), and a separation tank (5), characterized in that: The separation tank (5) is equipped with a rotary filter assembly; The rotary filter assembly includes a fixed base (6), a mounting base (9), and a separating screen cylinder (11). The lower outer wall of the separating screen cylinder (11) is rotatably connected to the upper surface of the mounting base (9). A second motor (10) is fixedly mounted on the lower surface of the mounting base (9). The fixed base (6) is fixedly mounted on the lower outer wall of the separating tank (5). An outlet pipe (8) is fixedly mounted on the lower outer wall of the separating tank (5). The outer wall of the fixed base (6) is provided with a mounting base groove (17). Among them, three of the six protrusions on the fixed seat (6) have T-shaped block grooves (13) on their lower surfaces, and the other three of the six protrusions on the fixed seat (6) have adjusting bolts (7) threadedly connected to their outer walls. The inner wall of the mounting seat slide groove (17) has three first limiting block grooves (14), and the interior of the three first limiting block grooves (14) is slidably connected to limiting blocks (15). The outer wall of the mounting seat (9) has three second limiting block grooves (16).

2. The catalyst recycling device for antioxidant production according to claim 1, characterized in that: The output end of the second motor (10) extends to the outside of the mounting base (9) and is fixedly connected to one end of the separating screen cylinder (11). The inside of the liquid outlet pipe (8) is connected to the inside of the separating tank (5), and the inside of the mounting base slide groove (17) is connected to the inside of the separating tank (5). The outer wall of the mounting base (9) is slidably connected to the inside of the mounting base groove (17), and the separation screen cylinder (11) is located inside the separation tank (5).

3. The catalyst recycling device for antioxidant production according to claim 1, characterized in that: The outer walls of the three T-shaped blocks on the outer wall of the mounting base (9) are respectively slidably connected to the interior of the corresponding T-shaped block groove (13); Among them, the ends of the three limiting blocks (15) near the second limiting block groove (16) all slide into the interior of the mounting base groove (17) and are respectively slidably connected to the interior of the corresponding second limiting block groove (16).

4. The catalyst recycling device for antioxidant production according to claim 1, characterized in that: The interiors of the three first limiting block grooves (14) are respectively connected to the interiors of the protrusions on the corresponding fixing seats (6); Among them, the ends of the three adjusting bolts (7) near the limiting block (15) are all threaded to the inside of the first limiting block groove (14) and are rotatably connected to the outer wall of the corresponding limiting block (15). The upper end of the separation tank (5) is connected to the lower end of the discharge port of the reactor (1) through a flange and bolts.

5. The catalyst recycling device for antioxidant production according to claim 1, characterized in that: The reactor (1) is rotatably connected to a stirring shaft (12), and the first motor (2) is fixedly installed on the upper surface of the reactor (1); The output end of the first motor (2) extends into the interior of the reactor (1) and is fixedly connected to one end of the stirring shaft (12), and the feed pipe (3) is fixedly installed on the upper surface of the reactor (1).

6. The catalyst recycling device for antioxidant production according to claim 1, characterized in that: The interior of the reactor (1) is connected to the interior of the feed pipe (3), and the control panel (4) is fixedly installed on the upper outer wall of the reactor (1); The first motor (2) is electrically connected to the control panel (4), the second motor (10) is electrically connected to the control panel (4), and the interior of the reactor (1) is connected to the interior of the separator (5).

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