Cyclohexane oxidation liquid decomposition device

Abstract

The utility model relates to a cyclohexane oxidation liquid decomposing device which comprises a base, an inverted-U-shaped support is arranged on the base, a decomposing box is arranged between two vertical parts of the support, a plurality of partition plates are distributed in the decomposing box at intervals, the partition plates comprise a plurality of upper partition plates and a plurality of lower partition plates, the upper partition plates and the lower partition plates are staggered, the leftmost side is the upper partition plate, and the rightmost side is the lower partition plate. A feeding pipe is communicated with the top of the decomposition box on the left side of the leftmost upper partition plate, a discharging pipe is communicated with the bottom of the decomposition box on the right side of the rightmost lower partition plate, a discharging pipe is arranged on the horizontal part of the support corresponding to the feeding pipe, the bottom end of the discharging pipe is communicated with a first hose, and the first hose is communicated with the feeding pipe through a first quick connector; a conveying pipe is arranged on the vertical part of the support below the right side of the discharging pipe, the left end of the conveying pipe is communicated with a second hose, and the second hose is communicated with the discharging pipe through a second quick connector. According to the utility model, the oxidation liquid can be subjected to multi-time sufficient stirring type catalytic decomposition, and the decomposition box can be conveniently disassembled and assembled, so that the device is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of decomposition, and in particular relates to a cyclohexane oxidation liquid decomposition device. Background Art

[0002] At present, when cyclohexane is oxidized to produce cyclohexanone, it is first necessary to oxidize cyclohexane at 155-165°C without catalysis in air to obtain cyclohexane oxidation liquid of cyclohexyl hydroperoxide, then send the cyclohexane oxidation liquid into a decomposition reactor, decompose it under the action of a catalyst, decompose the cyclohexyl hydroperoxide into cyclohexanone and cyclohexanol, then separate the decomposed product into an organic phase and an inorganic phase, the organic phase enters an alkane distillation system, recover cyclohexane from the top of the tower and send it to an oxidation kettle for recycling, the bottom product is a crude ketone alcohol, and the crude ketone alcohol is distilled to obtain cyclohexanone and cyclohexanol successively, and the cyclohexanol is dehydrogenated to obtain cyclohexanone. However, in the actual decomposition process, in the existing decomposer, the cyclohexane oxidation liquid is not fully and completely contacted with the used molecular sieve catalyst, the decomposition rate and quality are not high, and it is inconvenient to replace the molecular sieve catalyst, and the use is not convenient and practical, which needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a cyclohexane oxidation liquid decomposition device, which can perform multiple fully stirred contact catalytic decompositions on the oxidation liquid in the labyrinth circulation flow, and can conveniently disassemble and assemble the entire decomposition box to solve the above problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a cyclohexane oxidation liquid decomposition device, including a base, an inverted U-shaped bracket is fixed on the base, a decomposition box is arranged between the two vertical parts of the bracket, the decomposition box is detachably connected to the horizontal part of the bracket and a plurality of partitions are distributed in the left and right directions, the partitions are composed of a plurality of upper partitions and a plurality of lower partitions, the top end of the upper partition is fixedly connected to the top of the decomposition box, and a gap is left between the bottom end and the bottom of the decomposition box, the bottom end of the lower partition is fixedly connected to the bottom of the decomposition box, and a gap is left between the top end and the top of the decomposition box. The gap is arranged in a staggered manner, the upper partition and the lower partition are distributed in an alternating manner, the leftmost partition is the upper partition, and the rightmost partition is the lower partition, the top of the decomposition box on the left side of the leftmost upper partition is connected with a feed pipe, and the bottom of the decomposition box on the right side of the rightmost lower partition is connected with a discharge pipe, a discharge pipe is vertically penetrated and fixedly arranged on the horizontal part of the bracket corresponding to the feed pipe, the bottom end of the discharge pipe is connected with a first hose, the first hose is connected to the top end of the feed pipe through a first quick connector, a conveying pipe is horizontally penetrated and fixedly arranged on the vertical part of the bracket below the right side of the discharge pipe, the left end of the conveying pipe is connected with a second hose, and the first hose is connected to the bottom end of the discharge pipe. The two hoses are connected to the bottom end of the discharge pipe through the second quick connector, the right end of the delivery pipe is connected to the feed port of the material pump fixed on the bracket, the discharge port of the material pump is connected to one of the ports of a three-way pipe, the other two ports of the three-way pipe are respectively connected to the return pipe and the discharge pipe, the tail end of the return pipe is connected to the side of the discharge pipe, the top of the discharge pipe and the return pipe and the discharge pipe are all provided with control valves, a rotating shaft is penetrated in the decomposition box along the left and right directions, the rotating shaft is rotatably connected to the left and right side walls and partitions of the decomposition box, the rotating shaft between the adjacent two partitions and the partition and the corresponding side wall of the decomposition box A plurality of mesh cylinders evenly spaced at circumferential intervals are radially fixedly connected to the upper surface, the mesh cylinders are filled with molecular sieve catalysts, cross-shaped slots are provided at both ends of the rotating shaft, and first hydraulic cylinders are horizontally fixedly provided on the two vertical parts of the bracket corresponding to the rotating shaft, the piston rod of the first hydraulic cylinder on the left side faces the right side and is rotatably connected to the left turntable, the piston rod of the first hydraulic cylinder on the right side faces the left side and is fixedly connected to the motor, the output shaft of the motor faces the left side and is fixedly connected to the right turntable, and cross-shaped plug blocks are fixedly provided on the opposite sides of the left turntable and the right turntable, and the plug blocks are inserted in the slots on the same side.

[0005] Preferably, a positioning through hole is provided on the horizontal part of the bracket, and a second hydraulic cylinder is horizontally fixed on the bracket on the left and right sides of the positioning through hole, the piston rod of the second hydraulic cylinder faces the direction of the positioning through hole and is fixedly connected to a fixing plate, a plurality of fixing rods distributed in a rectangular array are fixed on one side of the fixing plate close to the positioning through hole, a mounting plate is fixed on the outer top of the decomposition box corresponding to the positioning through hole, a limit plate is fixedly sleeved on the mounting plate, the limit plate abuts on the bottom of the horizontal part of the bracket, the mounting plate above the limit plate is inserted into the positioning through hole and blind holes are provided at positions on the left and right sides corresponding to the fixing rods, the fixing plate abuts on the mounting plate and the fixing rods thereon are inserted into the corresponding blind holes.

[0006] Preferably, the mounting plate is adapted to the positioning through hole.

[0007] Preferably, the fixing rod is matched with the corresponding blind hole.

[0008] Preferably, the plug block is adapted to the corresponding slot.

[0009] Preferably, vertical plates are fixed on the bases on the front and rear sides of the decomposition box, and a third hydraulic cylinder is horizontally fixed on the upper part of the vertical plates along the front and rear directions. The piston rod of the third hydraulic cylinder faces the direction of the decomposition box and is fixedly connected to an electric heating plate, and the electric heating plate faces and can abut against the decomposition box.

[0010] The utility model has the following beneficial effects: during the decomposition operation, the control valves on the reflux pipe and the discharge pipe are first closed, and the control valve on the discharge pipe is opened, and the bottom liquid and cyclohexane oxidation liquid required for the reaction are input into the decomposition box through the discharge pipe, the first hose and the feed pipe. After the feeding is completed, the control valve on the discharge pipe is closed and the control valve on the reflux pipe is opened. After the material pump is started, the material liquid can be pumped by the material pump, and with the cooperation of the discharge pipe, the first hose, the feed pipe, the discharge pipe, the second hose, the delivery pipe and the reflux pipe, the material liquid can continue to flow in a serpentine circulation along the maze channel formed by the cooperation of a plurality of upper partitions and lower partitions in the decomposition box. At the same time, the motor is operated. With the cooperation of the rotational connection between the left turntable and the piston rod of the corresponding first hydraulic cylinder, the fixed connection between the right turntable and the output shaft of the motor, the plug-in connection between the plug-in block and the corresponding slot, and the rotational connection between the shaft and the decomposition box and the partition, the operation of the motor can drive the shaft and the multiple groups of net cylinders on the shaft to rotate synchronously, stirring the flowing liquid, so that the molecular sieve catalyst in the net cylinder can be more fully in contact with the flowing liquid, which can greatly enhance the catalytic decomposition effect and effectively improve the rate and quality of decomposition. After the decomposition is completed, close the control valve on the reflux pipe and open the control valve on the discharge pipe. Under the pumping of the material pump, the reacted liquid can be pumped out of the decomposition box through the discharge pipe;

[0011] In addition, the overall replacement of the molecular sieve catalyst can be achieved by disassembling and assembling the entire decomposition box, specifically: in the shutdown state, the first hydraulic cylinder can be operated first to shrink its piston rod, drive the left turntable and the right turntable to retract, and withdraw the plug block from the corresponding slot, so as to release the plug-in transmission of the rotating shaft. Then, the connection between the feed pipe and the first hose can be disconnected by the first quick connector, the connection between the discharge pipe and the second hose can be disconnected by the second quick connector, and then the original decomposition box can be disassembled by the detachable connection between the decomposition box and the horizontal part of the bracket. Then, after taking the new decomposition box, it can be connected and installed with the horizontal part of the bracket by its detachable connection with the horizontal part of the bracket. After that, the feed pipe is connected to the first hose through the first quick connector, the discharge pipe is connected to the second hose through the second quick connector, and the first hydraulic cylinder is operated to extend its piston rod, and the plug block is plugged into the corresponding slot, and the decomposition operation can be continued. In this way, the overall replacement of the molecular sieve catalyst can be achieved by conveniently disassembling and assembling the entire decomposition box, which is simple and convenient to operate, and more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a main structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0014] Figure 3 It is a left-side structural schematic diagram of the utility model;

[0015] Figure 4 This is a schematic diagram of the main structure of the bracket of the utility model;

[0016] Figure 5 This is a schematic diagram of the main structure of the decomposition box of the utility model;

[0017] Figure 6 It is a left-side structural schematic diagram of the rotating shaft of the utility model.

[0018] Numbers in the figure: 1 is a base, 2 is a bracket, 3 is a decomposition box, 4 is an upper partition, 5 is a lower partition, 6 is a feed pipe, 7 is a discharge pipe, 8 is a discharge pipe, 9 is a first hose, 10 is a first quick connector, 11 is a conveying pipe, 12 is a second hose, 13 is a second quick connector, 14 is a material pump, 15 is a three-way pipe, 16 is a reflux pipe, 17 is a discharge pipe, 18 is a control valve, 19 is a rotating shaft, 20 is a mesh cylinder, 21 is a molecular sieve catalyst, 22 is a slot, 23 is a first hydraulic cylinder, 24 is a left turntable, 25 is a motor, 26 is a right turntable, 27 is an insert, 28 is a positioning through hole, 29 is a second hydraulic cylinder, 30 is a fixed plate, 31 is a fixed rod, 32 is a mounting plate, 33 is a limit plate, 34 is a blind hole, 35 is a vertical plate, 36 is a third hydraulic cylinder, and 37 is an electric heating plate. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0020] like Figures 1 to 6As shown, a cyclohexane oxidation liquid decomposition device includes a base 1, an inverted U-shaped bracket 2 is fixedly arranged on the base 1, a decomposition box 3 is arranged between two vertical parts of the bracket 2, the decomposition box 3 is detachably connected to the horizontal part of the bracket 2, and a plurality of partitions are arranged in intervals along the left and right directions. The partitions are composed of a plurality of upper partitions 4 and a plurality of lower partitions 5, the top of the upper partition 4 is fixedly connected to the inner top of the decomposition box 3, and a gap is left between the bottom and the inner bottom of the decomposition box 3, the bottom of the lower partition 5 is fixedly connected to the inner bottom of the decomposition box 3, and a gap is left between the top and the inner top of the decomposition box 3, the upper partition 4 and the lower partition 5 are staggered, and the leftmost partition is the upper partition 4, and the rightmost partition is the lower partition 5. A feed pipe 6 is connected to the top of the decomposition box 3 on the left side of the leftmost upper partition 4, and a discharge pipe 7 is connected to the bottom of the decomposition box 3 on the right side of the rightmost lower partition 5. A discharge pipe 8 is vertically penetrated and fixedly provided on the horizontal part of the bracket 2 corresponding to the feed pipe 6. The bottom end of the discharge pipe 8 is connected to a first hose 9, and the first hose 9 is connected to the top of the feed pipe 6 through a first quick connector 10. A conveying pipe 11 is horizontally penetrated and fixedly provided on the vertical part of the bracket 2 below the right side of the discharge pipe 7. A second hose 12 is connected to the left end of the conveying pipe 11, and the second hose 12 is connected to the bottom end of the discharge pipe 7 through a second quick connector 13. The right end of the delivery pipe 11 is connected to the feed port of the material pump 14 fixedly mounted on the bracket 2, and the discharge port of the material pump 14 is connected to one of the ports of a three-way pipe 15. The other two ports of the three-way pipe 15 are respectively connected to the return pipe 16 and the discharge pipe 17. The tail end of the return pipe 16 is connected to the side of the discharge pipe 8. The top of the discharge pipe 8 and the return pipe 16 and the discharge pipe 17 are all provided with a control valve 18. A rotating shaft 19 is provided in the decomposition box 3 along the left and right directions. The rotating shaft 19 is rotatably connected to the left and right side walls and the partition of the decomposition box 3. A plurality of mesh cylinders 20 evenly spaced at circumferential intervals are radially fixedly connected to the rotating shaft 19 between the adjacent two partitions and the partition and the corresponding side wall of the decomposition box 3. The mesh cylinder 20 is filled with a molecular sieve catalyst 21. A cross-shaped slot 22 is provided at both left and right ends of the rotating shaft 19. A first hydraulic cylinder 23 is horizontally fixedly provided on the two vertical parts of the bracket 2 corresponding to the rotating shaft 19. The piston rod of the first hydraulic cylinder 23 on the left side faces the right side and is rotatably connected to a left turntable 24. The piston rod of the first hydraulic cylinder 23 on the right side faces the left side and is fixedly connected to a motor 25. The output shaft of the motor 25 faces the left side and is fixedly connected to a right turntable 26. A cross-shaped plug block 27 is fixedly provided on the opposite side of the left turntable 24 and the right turntable 26. The plug block 27 is inserted into the slot 22 on the same side.

[0021] During the decomposition operation, the control valves 18 on the reflux pipe 16 and the discharge pipe 17 are first closed, and the control valve 18 on the discharge pipe 8 is opened, and the bottom liquid and cyclohexane oxidation liquid required for the reaction are input into the decomposition box 3 through the discharge pipe 8, the first hose 9 and the feed pipe 6. After the feeding is completed, the control valve 18 on the discharge pipe 8 is closed and the control valve 18 on the reflux pipe 16 is opened. After the material pump 14 is started, the material liquid can be pumped by the material pump 14, and with the cooperation of the discharge pipe 8, the first hose 9, the feed pipe 6, the discharge pipe 7, the second hose 12, the delivery pipe 11 and the reflux pipe 16, the material liquid can continue to flow in a serpentine circulation along the maze channel formed by the cooperation of the plurality of upper partitions 4 and the lower partitions 5 in the decomposition box 3. At the same time, the motor 25 is operated. With the cooperation of the rotational connection between the left turntable 24 and the piston rod of the corresponding first hydraulic cylinder 23, the fixed connection between the right turntable 26 and the output shaft of the motor 25, the insertion of the plug block 27 and the corresponding slot 22, and the rotational connection between the shaft 19 and the decomposition box 3 and the partition, the operation of the motor 25 can drive the shaft 19 and the multiple groups of mesh cylinders 20 on the shaft 19 to rotate synchronously, stirring the flowing liquid feed, so that the molecular sieve catalyst 21 in the mesh cylinder 20 can be more fully in contact with the flowing liquid feed, which can greatly enhance the catalytic decomposition effect and more effectively improve the rate and quality of decomposition. After the decomposition is completed, the control valve 18 on the reflux pipe 16 is closed and the control valve 18 on the discharge pipe 17 is opened. Under the pumping of the feed pump 14, the reacted liquid feed is pumped out of the decomposition box 3 through the discharge pipe 17;

[0022] In addition, the molecular sieve catalyst 21 can be replaced as a whole by disassembling and assembling the entire decomposition box 3. Specifically, the first hydraulic cylinder 23 can be operated in the shutdown state to shrink its piston rod, drive the left turntable 24 and the right turntable 26 to retract, and withdraw the plug block 27 from the corresponding slot 22, so as to release the plug-in transmission of the rotating shaft 19. Then, the connection between the feed pipe 6 and the first hose 9 can be disconnected through the first quick connector 10, and the connection between the discharge pipe 7 and the second hose 12 can be disconnected through the second quick connector 13, and then the original decomposition box 3 can be disassembled through the detachable connection between the decomposition box 3 and the horizontal part of the bracket 2. Then, after taking out the new decomposition box 3, it can be connected and installed with the horizontal part of the bracket 2 through its detachable connection with the horizontal part of the bracket 2. Afterwards, the feed pipe 6 is connected to the first hose 9 through the first quick connector 10, the discharge pipe 7 is connected to the second hose 12 through the second quick connector 13, and the first hydraulic cylinder 23 is operated to extend its piston rod, and the plug block 27 is plugged into the corresponding slot 22, and the decomposition operation can be continued. In this way, the overall replacement of the molecular sieve catalyst 21 can be achieved by conveniently disassembling and assembling the entire decomposition box 3, which is simple and convenient to operate, more convenient and practical. The first quick connector 10 and the second quick connector 13 can both adopt the existing technology, which is generally composed of a male head and a female head. When used, it is only necessary to preset the male head or female head on the first hose 9 and the second hose 12, and preset the corresponding female head or male head on the feed pipe 6 and the discharge pipe 7, and they can be used together. The base liquid required for the decomposition reaction is mostly an alkali solution such as NaOH, and the required molecular sieve catalyst is mostly an acidic molecular sieve catalyst or an MCM-41 molecular sieve catalyst, etc., which can be selected according to the actual situation, and no specific limitation is made here.

[0023] In this embodiment, a positioning through hole 28 is provided on the horizontal part of the bracket 2, and a second hydraulic cylinder 29 is fixedly provided horizontally on the bracket 2 on the left and right sides of the positioning through hole 28. The piston rod of the second hydraulic cylinder 29 faces the direction of the positioning through hole 28 and is fixedly connected to a fixing plate 30. A plurality of fixing rods 31 distributed in a rectangular array are fixedly provided on one side of the fixing plate 30 close to the positioning through hole 28. A mounting plate 32 is fixedly provided on the outer top of the decomposition box 3 corresponding to the positioning through hole 28, and a limiting plate 33 is fixedly sleeved on the mounting plate 32. The limiting plate 33 abuts against the bottom of the horizontal part of the bracket 2. The mounting plate 32 above the limiting plate 33 penetrates and is inserted into the positioning through hole 28, and blind holes 34 are provided at positions on the left and right sides thereof corresponding to the fixing rods 31. The fixing plate 30 abuts against the mounting plate 32, and the fixing rods 31 thereon are inserted into the corresponding blind holes 34.

[0024] When disassembling the decomposition box 3, after disconnecting the feed pipe 6 from the first hose 9, the discharge pipe 7 from the second hose 12 and retracting the corresponding turntable, the second hydraulic cylinder 29 can be operated to shrink its piston rod, drive the fixing plate 30 to retract, and withdraw the fixing rod 31 from the corresponding blind hole 34, so as to release the plug-in fixation of the mounting plate 32, and then pull the mounting plate 32 out of the positioning blind hole 28, so as to disassemble the original decomposition box 3. Then, after taking a new decomposition box 3, first align the mounting plate 32 on it with the positioning through hole 28 and insert it from bottom to top until the limit plate 33 presses against the bottom of the horizontal part of the bracket 2, so as to preliminarily position and install the decomposition box 3 in place. Then, operate the second hydraulic cylinder 29 again to extend its piston rod, drive the fixed plate 30 to move toward the mounting plate 32, until it presses against the mounting plate 32, so that the fixed rod 31 is inserted into the corresponding blind hole 34, and the mounting plate 32 is inserted and fixed, so that the decomposition box 3 can be fixed and installed, and the installation is stable and does not affect subsequent use. After that, the feed pipe 6 is connected to the first hose 9 through the first quick connector 10, and the discharge pipe 7 is connected to the second hose 12 through the second quick connector 13, and the first hydraulic cylinder 23 is operated to extend its piston rod, and the plug block 27 is inserted into the corresponding slot 22, and the decomposition operation can be continued. In this way, the overall replacement of the molecular sieve catalyst 21 can be achieved by conveniently disassembling and assembling the entire decomposition box 3, which is simple and convenient to operate, and more convenient and practical.

[0025] In this embodiment, the mounting plate 32 is matched with the positioning through hole 28 to ensure that the mounting plate 32 is smoothly plugged into place.

[0026] In this embodiment, the fixing rod 31 is matched with the corresponding blind hole 34 to ensure that the fixing rod 31 is smoothly inserted into place.

[0027] In this embodiment, the insert block 27 is matched with the corresponding slot 22 to ensure that the insert block 27 is smoothly inserted into place, so that the operation of the motor 25 can smoothly drive the rotating shaft 19 to rotate.

[0028] In this embodiment, vertical plates 35 are fixed on the bases on both the front and rear sides of the decomposition box 3. A third hydraulic cylinder 36 is fixed horizontally on the upper part of the vertical plate 35 along the front and rear direction. The piston rod of the third hydraulic cylinder 36 faces the direction of the decomposition box 3 and is fixedly connected with an electric heating plate 37. The electric heating plate 37 faces and can abut against the decomposition box 3, so that during the actual decomposition operation, the electric heating plate 37 can be pressed against the front and rear sides of the decomposition box 3 by extending the piston rod of the third hydraulic cylinder 36 to heat the decomposition box 3, provide the temperature required for the reaction, and ensure that the decomposition operation proceeds smoothly. When disassembling and assembling the decomposition box 3, the electric heating plate 37 only needs to be returned to its original position by contracting the piston rod of the third hydraulic cylinder 36. The electric heating plate 37 can be made of existing technology.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cyclohexane oxidation liquid decomposition device, comprising a base, characterized in that: An inverted U-shaped bracket is fixed on the base, and a decomposition box is arranged between the two vertical parts of the bracket. The decomposition box is detachably connected to the horizontal part of the bracket and a plurality of partitions are arranged therein at intervals along the left and right directions. The partitions are composed of a plurality of upper partitions and a plurality of lower partitions. The top end of the upper partition is fixedly connected to the top of the decomposition box, and a gap is left between the bottom end and the bottom of the decomposition box. The bottom end of the lower partition is fixedly connected to the bottom of the decomposition box, and a gap is left between the top end and the top of the decomposition box. The upper partitions and the lower partitions are staggered, and the leftmost partition is the upper partition and the rightmost partition is the lower partition. The partition is a lower partition, a feed pipe is connected to the top of the decomposition box on the left side of the leftmost upper partition, and a discharge pipe is connected to the bottom of the decomposition box on the right side of the rightmost lower partition, a discharge pipe is vertically penetrated and fixedly provided on the horizontal part of the bracket corresponding to the feed pipe, a first hose is connected to the bottom end of the discharge pipe, and the first hose is connected to the top end of the feed pipe through a first quick connector, a conveying pipe is horizontally penetrated and fixedly provided on the vertical part of the bracket below the right side of the discharge pipe, a second hose is connected to the left end of the conveying pipe, and the second hose is connected to the bottom end of the discharge pipe through a second quick connector, The right end of the conveying pipe is communicated with the feed port of the material pump fixedly mounted on the bracket, the discharge port of the material pump is communicated with one of the ports of a three-way pipe, the other two ports of the three-way pipe are respectively connected with a return pipe and a discharge pipe, the tail end of the return pipe is communicated with the side of the discharge pipe, the top of the discharge pipe and the return pipe and the discharge pipe are all provided with control valves, a rotating shaft is penetrated in the decomposition box along the left and right directions, the rotating shaft is rotatably connected to the left and right side walls and the partition of the decomposition box, and a plurality of adjacent partitions and the rotating shaft between the partition and the corresponding side wall of the decomposition box are radially fixedly connected A mesh cylinder is evenly spaced at circumferential intervals, and the mesh cylinder is filled with a molecular sieve catalyst. Cross-shaped slots are provided at both ends of the rotating shaft, and first hydraulic cylinders are horizontally fixedly provided on two vertical parts of the bracket corresponding to the rotating shaft. The piston rod of the first hydraulic cylinder on the left side faces the right side and is rotatably connected to the left turntable, and the piston rod of the first hydraulic cylinder on the right side faces the left side and is fixedly connected to the motor, and the output shaft of the motor faces the left side and is fixedly connected to the right turntable. Cross-shaped plug blocks are fixedly provided on the opposite sides of the left turntable and the right turntable, and the plug blocks are inserted in the slots on the same side.

2. The cyclohexane oxidation liquid decomposition device according to claim 1, characterized in that: A positioning through hole is provided on the horizontal part of the bracket, and a second hydraulic cylinder is horizontally fixed on the bracket on the left and right sides of the positioning through hole, and the piston rod of the second hydraulic cylinder faces the direction of the positioning through hole and is fixedly connected to a fixing plate, and a plurality of fixing rods distributed in a rectangular array are fixed on one side of the fixing plate close to the positioning through hole, and a mounting plate is fixed on the top of the decomposition box corresponding to the positioning through hole, and a limit plate is fixedly sleeved on the mounting plate, and the limit plate abuts on the bottom of the horizontal part of the bracket, and the mounting plate above the limit plate is inserted into the positioning through hole and blind holes are provided at positions on the left and right sides corresponding to the fixing rods, and the fixing plate abuts on the mounting plate and the fixing rods thereon are inserted into the corresponding blind holes.

3. The cyclohexane oxidation liquid decomposition device according to claim 2, characterized in that: The mounting plate is matched with the positioning through hole.

4. The cyclohexane oxidation liquid decomposition device according to claim 2, characterized in that: The fixing rod is matched with the corresponding blind hole.

5. The cyclohexane oxidation liquid decomposition device according to claim 1, characterized in that: The insert block is matched with the corresponding slot.

6. The cyclohexane oxidation liquid decomposition device according to claim 1, characterized in that: Vertical plates are fixed on the bases on both the front and rear sides of the decomposition box, and a third hydraulic cylinder is fixedly installed horizontally on the upper part of the vertical plates along the front and rear directions. The piston rod of the third hydraulic cylinder faces the direction of the decomposition box and is fixedly connected to an electric heating plate, and the electric heating plate faces and can abut against the decomposition box.

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