Catalyst recovery device for cyclohexanone production
By designing a combined process of pressure filtration and sieve plate shaking air drying for catalyst recovery, the problem of difficult separation of catalyst and cyclohexanone was solved, achieving rapid recovery and efficient treatment of the catalyst.
Patent Information
- Application Number
- CN202520423425.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In the production of cyclohexanone, the catalyst and cyclohexanone are mixed and difficult to separate, resulting in a long precipitation time. Furthermore, solid impurities adhere to the catalyst and are difficult to separate, leading to low catalyst recovery efficiency.
A catalyst recovery device for cyclohexanone production was designed. By using the pressure filtration action of cylinders and pressure plates, combined with the up-and-down shaking of the sieve plate driven by an eccentric column and the air drying of the fan blades, the catalyst can be quickly separated and dried.
It improves the efficiency of catalyst recovery and treatment, reduces workload, simplifies the catalyst disassembly and assembly process, and improves work efficiency.
Smart Images
Figure CN223861408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cyclohexanone production technology, and more specifically, to a catalyst recovery device for cyclohexanone production. Background Technology
[0002] Cyclohexanone is an organic compound with the chemical formula C6H10O. It is a saturated cyclic ketone in which the carbonyl carbon atom is contained in a six-membered ring. It is usually a colorless and transparent liquid with an earthy odor. When it contains trace amounts of phenol, it has a minty smell. Cyclohexanone plays an important role in industry and is mainly used as a raw material and solvent for organic synthesis, such as in the manufacture of nylon, caprolactam, and adipic acid, as well as as a solvent for paints, pesticides, and dyes.
[0003] In the production of cyclohexanone, catalysts are usually used to accelerate the rate of chemical reaction, so that the oxidation reaction of cyclohexanone can proceed more efficiently. By using catalysts, the activation energy of the reaction can be effectively reduced, so that more reactants can be converted into products under the same conditions, thereby improving production efficiency.
[0004] Currently, after the chemical reaction for cyclohexanone preparation is completed, it needs to be filtered to separate the catalyst and other solid impurities. After the catalyst is separated, it needs to be dried to achieve catalyst recovery. However, in actual use, the catalyst will mix with cyclohexanone, the precipitation time is long, and after the catalyst is precipitated, the solid impurities and catalyst stick together and are difficult to separate. Therefore, it is necessary to improve and optimize it. Utility Model Content
[0005] To overcome the shortcomings of the existing technology, this utility model provides a catalyst recovery device for cyclohexanone production, which has the advantages of good filtration effect and fast drying rate.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a catalyst recovery device for cyclohexanone production, comprising a box body, a discharge port at the bottom of the box body, a feed port on the top right side of the box body, a limiting groove inside the box body, and a screening frame movably installed inside the limiting groove;
[0007] The screening frame has four movable slots at its four corners, and movable rods are movably installed inside each slot. A screen plate is fixedly installed between the four sets of movable rods. The bottom of each movable rod and the inner wall of the movable slot are elastically connected by a first spring. The screening frame has a transmission chamber inside, and a connecting rod is fixedly installed at the bottom of each movable rod. The bottom of the connecting rod extends into the transmission chamber. Transmission plates are fixedly installed at the bottom of the left and right sets of connecting rods. An eccentric column is rotatably installed on the front side of the transmission chamber. A first motor is fixedly installed on the inner wall of the transmission chamber. The output shaft of the first motor is fixedly connected to the eccentric column, and the bottom of the eccentric column abuts against the transmission plate.
[0008] As a preferred technical solution of this utility model, a fixing block is provided at the top of the front side of the filter box;
[0009] The front side of the box is provided with a movable groove, and a wedge is movably installed inside the movable groove. The top of the wedge and the inner wall of the movable groove are elastically connected by a second spring. A push rod is fixedly installed on the front side of the wedge, and the push rod is located on the outer wall of the box.
[0010] As a preferred embodiment of this utility model, a cylinder is fixedly installed on the top of the box, and the telescopic end of the cylinder extends into the interior of the box and is fixedly connected to the pressure plate.
[0011] As a preferred embodiment of this utility model, a ventilation pipe is fixedly provided on the left side of the box, and a second motor is fixedly installed inside the ventilation pipe.
[0012] As a preferred embodiment of this utility model, the inclined surface of the wedge is opened in the forward direction, and the bottom of the wedge and the fixing block abut against each other.
[0013] In a preferred embodiment of this invention, the pressure plate and the sieve plate are positioned in correspondence, and their sizes are matched.
[0014] As a preferred embodiment of this utility model, a fan blade is rotatably installed inside the ventilation pipe, and the output shaft of the second motor is fixedly connected to the fan blade.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model first uses the operation of a cylinder and a pressure plate to filter the solid catalyst at the top of the sieve plate, ensuring complete precipitation of cyclohexanone. Then, through the operation of a second motor and a first motor, the fan blades are dried while the eccentric column rotates, causing the sieve plate to shake up and down. Compared with traditional devices, this device ensures complete collection of cyclohexanone through pressure filtration. The up-and-down shaking of the sieve plate agitates the catalyst at the top of the sieve plate and, combined with the drying by the fan blades, effectively improves the catalyst recovery efficiency and reduces the workload.
[0017] 2. This utility model pushes the push rod upward to retract the wedge into the moving groove. At this time, the worker can pull the screening frame outward. When the screening frame is reinstalled, the wedge will be squeezed into the moving groove by the screening frame. When the screening frame is completely inside the box, the wedge will fix the screening frame through the elastic potential energy of the moving groove. Compared with the traditional device, this device can quickly disassemble and assemble the screening frame, which is convenient for workers to collect catalysts, improves work efficiency, and reduces the workload. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the sieve plate structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the filter box structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the transmission compartment structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the eccentric column structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the transmission compartment structure of this utility model;
[0024] Figure 7 This is a schematic diagram of the fan blade structure of this utility model.
[0025] In the diagram: 1. Box body; 2. Discharge port; 3. Feed port; 4. Limiting groove; 5. Screening frame; 6. Movable groove; 7. Movable rod; 8. Screen plate; 9. First spring; 10. Transmission chamber; 11. Connecting rod; 12. Transmission plate; 13. First motor; 14. Eccentric column; 15. Cylinder; 16. Pressure plate; 17. Ventilation pipe; 18. Second motor; 19. Fan blade; 20. Moving groove; 21. Fixed block; 22. Second spring; 23. Wedge; 24. Push rod. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] like Figures 1 to 7 As shown, this utility model provides a catalyst recovery device for cyclohexanone production, including a box body 1, a discharge port 2 at the bottom of the box body 1, a feed port 3 on the top right side of the box body 1, a limiting groove 4 inside the box body 1, and a screening frame 5 movably installed inside the limiting groove 4.
[0028] The screening frame 5 has four movable slots 6 at its four corners. Movable rods 7 are movably installed inside the movable slots 6. Screen plates 8 are fixedly installed between the four sets of movable rods 7. The bottom of the movable rods 7 and the inner wall of the movable slots 6 are elastically connected by a first spring 9. The screening frame 5 has a transmission chamber 10 inside. A connecting rod 11 is fixedly installed at the bottom of the movable rods 7. The bottom of the connecting rod 11 extends into the interior of the transmission chamber 10. Transmission plates 12 are fixedly installed at the bottom of the left and right sets of connecting rods 11. An eccentric column 14 is rotatably installed on the front side of the transmission chamber 10. A first motor 13 is fixedly installed on the inner wall of the transmission chamber 10. The output shaft of the first motor 13 is fixedly connected to the eccentric column 14. The bottom of the eccentric column 14 and the transmission plate 12 abut against each other.
[0029] When catalyst recovery is required, the operator first feeds a cyclohexanone-containing solution into the chamber 1 through inlet 3. The solution is then filtered through sieve plate 8 and discharged through outlet 2. Solid catalyst and impurities accumulate on sieve plate 8. After the first screening, the operator activates cylinder 15, causing pressure plate 16 to move downwards. Pressure plate 16 further presses down on the solid catalyst accumulated on top of sieve plate 8, squeezing out the solution inside the catalyst. The operator then activates pressure plate 16 to reset cylinder 15, further precipitating the cyclohexanone. At this point, the operator activates second motor 18 to rotate fan blade 19, which draws outside air into the chamber 1 to dry the catalyst. When the eccentric column 14 rotates, the operator can start the first motor 13. The operation of the first motor 13 will drive the eccentric column 14 to rotate. The rotation of the eccentric column 14 will push the transmission plate 12 downward. When the transmission plate 12 moves downward, it will drive the movable rods 7 on the left and right sides to move downward along the movable groove 6 through the connecting rod 11, causing the screen plate 8 to move downward. The first spring 9 is further compressed. Due to the elastic potential energy of the first spring 9, the transmission plate 12 and the eccentric column 14 will always be in contact with each other when the eccentric column 14 rotates. After the eccentric column 14 rotates one revolution, the movable rods 7 and the screen plate 8 will be reset by the elastic potential energy of the first spring 9. At this time, the eccentric column 14 will cause the screen plate 8 to vibrate up and down with each revolution, thereby turning over the catalyst on the top of the screen plate 8 and making the catalyst dry faster.
[0030] First, the solid catalyst on top of the sieve plate 8 is filtered by the operation of cylinder 15 and pressure plate 16 to ensure complete precipitation of cyclohexanone. Then, the fan blades 19 are dried by the operation of the second motor 18 and the first motor 13, while the eccentric column 14 rotates and drives the sieve plate 8 to shake up and down. Compared with traditional devices, this device ensures complete collection of cyclohexanone by filtration and the up and down shaking of the sieve plate 8 turns the catalyst on top of the sieve plate 8 over and dries it with the fan blades 19, which effectively improves the efficiency of catalyst recovery and reduces the workload.
[0031] Among them, a fixing block 21 is provided at the top of the front side of the filter box 5;
[0032] A movable groove 20 is provided on the front side of the housing 1. An inclined wedge 23 is movably installed inside the movable groove 20. The top of the inclined wedge 23 and the inner wall of the movable groove 20 are elastically connected by a second spring 22. A push rod 24 is fixedly installed on the front side of the inclined wedge 23. The push rod 24 is located on the outer wall of the housing 1.
[0033] After air drying is completed, the workers stop the first motor 13 and the second motor 18. Then, the workers push the wedge 23 upward along the moving groove 20 using the push rod 24. The wedge 23 is further retracted into the moving groove 20, allowing the workers to pull out the screening frame 5. The workers can then remove the dried catalyst, completing the recycling operation. After a single recycling is completed, the workers reinsert the screening frame 5 into the box 1 through the limiting groove 4. When the screening frame 5 is installed, the wedge 23 is squeezed into the moving groove 20 by the screening frame 5. When the screening frame 5 is completely inside the box 1, the wedge 23 will move downward through the elastic potential energy of the moving groove 20, fixing the screening frame 5.
[0034] By pushing the push rod 24 upward, the wedge 23 is retracted into the moving groove 20. At this time, the operator can pull out the screening frame 5. When the screening frame 5 is reinstalled, the wedge 23 will be squeezed into the moving groove 20 by the screening frame 5. After the screening frame 5 is completely inside the box 1, the wedge 23 will fix the screening frame 5 through the elastic potential energy of the moving groove 20. Compared with the traditional device, this device can quickly disassemble and assemble the screening frame 5, which is convenient for the operator to collect the catalyst, improves work efficiency and reduces the workload.
[0035] A cylinder 15 is fixedly installed on the top of the housing 1. The telescopic end of the cylinder 15 extends into the interior of the housing 1 and is fixedly connected to the pressure plate 16.
[0036] The operator starts cylinder 15, causing pressure plate 16 to move downward. Pressure plate 16 further presses down on the solid catalyst piled on top of sieve plate 8, causing the solution inside the catalyst to be squeezed out.
[0037] A ventilation pipe 17 is fixedly provided on the left side of the housing 1, and a second motor 18 is fixedly installed inside the ventilation pipe 17.
[0038] The inclined surface of the wedge 23 faces forward, and the bottom of the wedge 23 abuts against the fixing block 21.
[0039] The staff reinserts the screening frame 5 into the box 1 through the limiting groove 4. When the screening frame 5 is installed, the wedge 23 will be squeezed into the moving groove 20 by the screening frame 5. After the screening frame 5 is fully inserted into the box 1, the wedge 23 will be fixed by the elastic potential energy of the moving groove 20 downward.
[0040] The positions of the pressure plate 16 and the sieve plate 8 are corresponding, and the sizes of the pressure plate 16 and the sieve plate 8 are matched.
[0041] The ventilation duct 17 has a fan blade 19 rotatably mounted inside it, and the output shaft of the second motor 18 is fixedly connected to the fan blade 19.
[0042] The staff started the second motor 18 to make the fan blade 19 rotate. The fan blade 19 will bring outside air into the interior of the box 1 to dry the catalyst.
[0043] Working principle and usage process of this utility model:
[0044] When catalyst recovery is required, the operator first feeds a cyclohexanone-containing solution into the chamber 1 through inlet 3. The solution is then filtered through sieve plate 8 and discharged through outlet 2. Solid catalyst and impurities accumulate on sieve plate 8. After the first screening, the operator activates cylinder 15, causing pressure plate 16 to move downwards. Pressure plate 16 further presses down on the solid catalyst accumulated on top of sieve plate 8, squeezing out the solution inside the catalyst. The operator then activates pressure plate 16 to reset cylinder 15, further precipitating the cyclohexanone. At this point, the operator activates second motor 18 to rotate fan blade 19, which draws outside air into the chamber 1 to dry the catalyst. When the eccentric column 14 rotates, the operator can start the first motor 13. The operation of the first motor 13 will drive the eccentric column 14 to rotate. The rotation of the eccentric column 14 will push the transmission plate 12 downward. When the transmission plate 12 moves downward, it will drive the movable rods 7 on the left and right sides to move downward along the movable groove 6 through the connecting rod 11, causing the screen plate 8 to move downward. The first spring 9 is further compressed. Due to the elastic potential energy of the first spring 9, the transmission plate 12 and the eccentric column 14 will always be in contact with each other when the eccentric column 14 rotates. After the eccentric column 14 rotates one revolution, the movable rods 7 and the screen plate 8 will be reset by the elastic potential energy of the first spring 9. At this time, the eccentric column 14 will cause the screen plate 8 to vibrate up and down with each revolution, thereby turning over the catalyst on the top of the screen plate 8 and making the catalyst dry faster.
[0045] After air drying is completed, the workers stop the first motor 13 and the second motor 18. Then, the workers push the wedge 23 upward along the moving groove 20 using the push rod 24. The wedge 23 is further retracted into the moving groove 20, allowing the workers to pull out the screening frame 5. The workers can then remove the dried catalyst, completing the recycling operation. After a single recycling is completed, the workers reinsert the screening frame 5 into the box 1 through the limiting groove 4. When the screening frame 5 is installed, the wedge 23 is squeezed into the moving groove 20 by the screening frame 5. When the screening frame 5 is completely inside the box 1, the wedge 23 will move downward through the elastic potential energy of the moving groove 20, fixing the screening frame 5.
[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A catalyst recovery device for cyclohexanone production, comprising a housing (1), characterized in that: The bottom of the box (1) is provided with a discharge port (2), the top right side of the box (1) is provided with a feed port (3), the inside of the box (1) is provided with a limiting groove (4), and a screening frame (5) is movably installed inside the limiting groove (4). The screening frame (5) has four corners with movable slots (6). Movable rods (7) are installed inside the movable slots (6). Screen plates (8) are fixedly installed between the four sets of movable rods (7). The bottom of the movable rods (7) and the inner wall of the movable slots (6) are elastically connected by a first spring (9). The screening frame (5) has a transmission chamber (10). A connecting rod (11) is fixedly installed at the bottom of the movable rods (7). The bottom of the connecting rod (11) extends into the transmission chamber (10). The bottom of the left and right sets of connecting rods (11) is fixedly installed with transmission plates (12). An eccentric column (14) is rotatably installed on the front side of the transmission chamber (10). A first motor (13) is fixedly installed on the inner wall of the transmission chamber (10). The output shaft of the first motor (13) is fixedly connected to the eccentric column (14). The bottom of the eccentric column (14) and the transmission plate (12) abut against each other.
2. The catalyst recovery device for cyclohexanone production according to claim 1, characterized in that: A fixing block (21) is provided at the top of the front side of the filter box (5); The front side of the box (1) is provided with a moving groove (20), and a wedge (23) is movably installed inside the moving groove (20). The top of the wedge (23) and the inner wall of the moving groove (20) are elastically connected by a second spring (22). A push rod (24) is fixedly installed on the front side of the wedge (23), and the push rod (24) is located on the outer wall of the box (1).
3. The catalyst recovery device for cyclohexanone production according to claim 1, characterized in that: A cylinder (15) is fixedly installed on the top of the box (1). The telescopic end of the cylinder (15) extends into the interior of the box (1) and is fixedly connected to the pressure plate (16).
4. A catalyst recovery device for cyclohexanone production according to claim 1, characterized in that: A ventilation pipe (17) is fixedly provided on the left side of the box (1), and a second motor (18) is fixedly installed inside the ventilation pipe (17).
5. A catalyst recovery device for cyclohexanone production according to claim 2, characterized in that: The inclined surface of the wedge (23) is opened in the forward direction, and the bottom of the wedge (23) and the fixing block (21) abut against each other.
6. A catalyst recovery device for cyclohexanone production according to claim 3, characterized in that: The positions of the pressure plate (16) and the sieve plate (8) are corresponding, and the sizes of the pressure plate (16) and the sieve plate (8) are matched.
7. A catalyst recovery device for cyclohexanone production according to claim 4, characterized in that: The ventilation pipe (17) is rotatably mounted with a fan blade (19), and the output shaft of the second motor (18) is fixedly connected to the fan blade (19).