Hydrolysis centrifugal equipment for preparing quinclorac

Abstract

The invention discloses hydrolysis and centrifugation equipment for preparing quinclorac. The hydrolysis and centrifugation equipment comprises a hydrolysis device and a centrifugation device, the hydrolysis device comprises a hydrolysis kettle, and a material supply pipe and a water supply pipe which are communicated with the interior of the hydrolysis kettle are arranged on a top plate of the hydrolysis kettle; a stirring motor is fixedly arranged on the lower portion of a bottom plate of the hydrolysis kettle, a driving shaft of the stirring motor is connected with a rotating shaft cylinder rotationally arranged in the middle of the interior of the hydrolysis kettle, and multiple sets of stirring rods are evenly arranged on the outer side of the rotating shaft cylinder in the vertical direction at intervals; the multiple stirring rods in each group are uniformly hinged to the outer part of the rotating shaft cylinder at intervals in the circumferential direction of the rotating shaft cylinder, and an overturning driving mechanism for driving all the stirring rods to synchronously overturn is arranged in the rotating shaft cylinder. According to the hydrolysis kettle, materials and water in the hydrolysis kettle can be stirred in different directions, so that the hydrolysis reaction efficiency is improved, the materials and the water can be fully mixed, and the hydrolysis effect on the materials is ensured.

Description

Technical Field

[0001] This invention relates to the field of dichloroquinoline acid production equipment technology, and in particular to a hydrolysis centrifugation device for preparing dichloroquinoline acid. Background Technology

[0002] Hydrolysis centrifugation is a crucial step in the production of dichloroquinoline acid. After oxidation, the dichloroquinoline acid production material is transferred to a hydrolysis reactor for hydrolysis. Following hydrolysis, the material is transferred to a centrifuge for solid-liquid separation. The centrifuged material is then collected and sent to the sodium salt processing workshop for further processing. When hydrolyzing the oxidized material in the hydrolysis reactor, a corresponding stirring mechanism is typically used. Traditional stirring mechanisms use a motor to rotate a shaft, which in turn drives stirring blades to mix the material and water. However, current stirring blades can only rotate in one direction along the shaft's axis, resulting in poor mixing efficiency and affecting the hydrolysis reaction efficiency and effect. Therefore, a hydrolysis centrifugation device for the preparation of dichloroquinoline acid has been developed. Summary of the Invention

[0003] The purpose of this invention is to provide a hydrolysis centrifugation apparatus for preparing dichloroquinoline acid, thereby solving the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The present invention provides a hydrolysis centrifugation apparatus for preparing dichloroquinoline acid, comprising a hydrolysis device and a centrifugation device.

[0006] The hydrolysis device includes a hydrolysis vessel. A feed pipe and a water supply pipe, connected to the interior of the top plate of the hydrolysis vessel, are provided. A stirring motor is fixedly installed at the bottom of the bottom plate of the hydrolysis vessel. The drive shaft of the stirring motor is rotatably mounted on a rotating shaft cylinder located in the middle of the interior of the hydrolysis vessel. Multiple sets of stirring rods are evenly spaced vertically on the outer side of the rotating shaft cylinder. Each set of stirring rods is hinged to the outside of the rotating shaft cylinder at even intervals along its circumference. A flipping drive mechanism is provided inside the rotating shaft cylinder to drive all the stirring rods to flip synchronously. A transfer port, connected to the interior of the hydrolysis vessel, is provided on the side wall near the lower end.

[0007] The centrifugal device includes a cylindrical outer shell, a centrifugal drum rotatably mounted inside the outer shell, and a centrifugal motor for driving the centrifugal drum to rotate on the outside of the outer shell. A drain outlet communicating with the inside of the outer shell is located in the middle of the bottom of the outer shell. A feed pipe communicating with the inside of the centrifugal drum is located at one end of the centrifugal drum. The middle part of the feed pipe is rotatably engaged with the end of the outer shell. One end of the feed pipe extending outside the outer shell is connected to one end of a guide pipe via a rotary joint. The other end of the guide pipe is connected to the rotating port. The end of the centrifugal drum away from the feed pipe is connected to a discharge mechanism fixedly mounted at the end of the outer shell.

[0008] Furthermore, the circumferential wall of the rotating shaft cylinder is provided with first clearance holes at positions corresponding to each of the stirring rods, and a pair of mounting plates are fixedly installed on the outside of the first clearance holes. A sector gear is rotatably installed between each pair of mounting plates. One end of each sector gear is fixedly connected to the end of the corresponding stirring rod, and the other end of each sector gear passes through the first clearance hole and extends into the interior of the rotating shaft cylinder. The flipping drive mechanism includes a lifting slide rod slidably installed inside the rotating shaft cylinder. A transmission rack that meshes with the corresponding sector gear is fixedly installed on the circumferential wall of the lifting slide rod at positions corresponding to each of the sector gears. A reciprocating drive assembly for driving the lifting slide rod to reciprocate vertically is provided on the top plate of the hydrolysis reactor.

[0009] Furthermore, the upper end of the inner circumferential wall of the rotating shaft cylinder is provided with a plurality of limiting grooves evenly distributed along the circumferential direction, and the lifting slide rod is fixedly fitted with a limiting sleeve near the upper end. The outer circumferential wall of the limiting sleeve is provided with a plurality of limiting protrusions that slide and cooperate with each of the limiting grooves evenly distributed along the circumferential direction.

[0010] Furthermore, the reciprocating drive assembly includes a drive motor fixedly mounted on the top plate of the hydrolysis reactor and a drive connecting rod slidably mounted in the middle of the top plate of the hydrolysis reactor; a motor mounting base is fixedly mounted on the upper part of the top plate of the hydrolysis reactor, and the drive motor is fixedly mounted on the motor mounting base; an eccentric wheel is connected to the drive shaft of the drive motor, and an annular connecting groove is opened on the side of the eccentric wheel away from the drive motor; a connecting column that slides in cooperation with the connecting groove is fixedly mounted on the upper end of the drive connecting rod, the middle part of the drive connecting rod slides in cooperation with a guide through hole opened in the middle of the top plate of the hydrolysis reactor, and the lower end of the drive connecting rod is rotatably connected to the upper end of the lifting slide rod.

[0011] Furthermore, a connecting plate is fixedly provided at the lower end of the drive linkage, and a connector is fixedly provided at the upper end of the lifting slide rod. The connector is clearance-fitted with a connecting hole opened at the lower end of the connecting plate. A connecting sleeve is sleeved on the lifting slide rod below the connector. The central hole of the connecting sleeve is clearance-fitted with the lifting slide rod. The part of the connecting sleeve near the outer edge is fixedly connected to the connecting plate by a plurality of connecting screws evenly arranged along its circumference.

[0012] Furthermore, an on / off valve is provided at the connection point between the feed pipe and the transfer port, and a power pump is provided in the middle of the feed pipe.

[0013] Furthermore, limiting protrusions are fixedly provided on the outer peripheral wall of the centrifugal drum near both ends, and limiting ring grooves are provided on the inner peripheral wall of the outer shell at positions corresponding to each limiting protrusion. The limiting protrusions are rotatably engaged with the corresponding limiting ring grooves, and a rotary sealing ring is provided between the outer peripheral wall of the limiting protrusion and the inner peripheral wall of the limiting ring groove.

[0014] Furthermore, an inner spiral blade is fixedly installed on the inner peripheral wall of the centrifugal drum, and dehydration through holes are evenly and densely distributed on the peripheral wall of the centrifugal drum.

[0015] Furthermore, a drive gear is connected to the drive shaft of the centrifugal motor. The lower end of the drive gear passes through the second clearance hole opened on the outer shell and meshes with the driven gear ring fixedly sleeved on the peripheral wall of the centrifugal drum.

[0016] Furthermore, the discharge mechanism includes a discharge cylinder fixedly disposed at the end of the outer shell. One end of the discharge cylinder extends into the interior of the outer shell and rotatably engages with the end of the centrifugal drum away from the feed pipe. A rotating shaft is rotatably disposed inside the discharge cylinder, and an outer spiral blade is fixedly sleeved on the rotating shaft. A discharge motor for driving the rotating shaft to rotate is fixedly disposed on the outer side of the end of the discharge cylinder located outside the outer shell. A discharge hopper communicating with the interior of the discharge cylinder is fixedly disposed at the bottom end of the discharge cylinder near the discharge motor.

[0017] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0018] In operation, this invention introduces the oxidized material from the preparation of dichloroquinoline acid and a measured amount of water for hydrolysis into the hydrolysis vessel through the feed pipe and water supply pipe on the hydrolysis vessel. The stirring rod in the hydrolysis vessel rotates along the axis of the rotating sleeve and can also swing up and down and flip in the vertical direction, thereby stirring the material and water in the hydrolysis vessel in different directions, thus improving the efficiency of the hydrolysis reaction, ensuring that the material and water are fully mixed, and guaranteeing the hydrolysis effect of the material. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall external structure of the present invention;

[0021] Figure 2 This is a cross-sectional schematic diagram of the hydrolysis apparatus of the present invention;

[0022] Figure 3 This is a cross-sectional schematic diagram of the centrifuge device of the present invention;

[0023] Figure 4 This is a schematic cross-sectional view of the rotating shaft cylinder structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the reciprocating drive component structure of the present invention;

[0025] Figure 6 This is a schematic diagram showing the connection between the drive linkage and the lifting slide bar;

[0026] Explanation of reference numerals in the attached drawings: 1. Hydrolysis vessel; 2. Feed pipe; 3. Water supply pipe; 4. Stirring motor; 5. Rotating shaft; 6. Stirring rod; 7. Transfer port; 8. First clearance hole; 9. Mounting plate; 10. Sector gear;

[0027] 11. Lifting slide bar; 12. Transmission rack; 13. Limiting groove; 14. Limiting sleeve; 15. Limiting protrusion; 16. Drive motor; 17. Drive connecting rod; 18. Motor mounting base; 19. Eccentric wheel; 20. Connecting groove; 21. Connecting column; 22. Guide through hole; 23. Connecting plate; 24. Connecting head; 25. Connecting hole; 26. Connecting sleeve; 27. Connecting screw; 28. Outer shell; 29. ​​Centrifugal drum; 3 0. Centrifugal motor; 31. Limiting convex ring; 32. Limiting ring groove; 33. Rotary sealing ring; 34. Drive gear; 35. Driven gear ring; 36. Drain outlet; 37. Inner spiral blade; 38. Dewatering through hole; 39. Feed pipe; 40. Rotary joint; 41. Guide pipe; 42. On / off valve; 43. Power pump; 44. Discharge cylinder; 45. Rotating shaft; 46. Outer spiral blade; 47. Discharge motor; 48. Discharge hopper. Detailed Implementation

[0028] like Figures 1-6 As shown, a hydrolysis centrifugation apparatus for preparing dichloroquinoline acid includes a hydrolysis device and a centrifugation device.

[0029] The hydrolysis device includes a hydrolysis vessel 1. A feed pipe 2 and a water supply pipe 3 are fixedly installed on the top plate of the hydrolysis vessel 1 and are connected to its interior. The feed pipe 2 is connected to the material tank of the oxidation process, and the water supply pipe is connected to the external water metering tank. The two are used to introduce the oxidized material and the water for the hydrolysis reaction into the hydrolysis vessel 1, respectively.

[0030] A stirring motor 4 is fixedly installed on the lower part of the bottom plate of the hydrolysis vessel 1. The drive shaft of the stirring motor 4 is connected to a rotating cylinder 5 rotatably installed in the middle of the interior of the hydrolysis vessel 1. Multiple sets of stirring rods 6 are evenly spaced along the vertical direction on the outer side of the rotating cylinder 4. The multiple stirring rods 6 in each set are hinged to the outside of the rotating cylinder 5 at even intervals along the circumference of the rotating cylinder 5. A flipping drive mechanism for driving all the stirring rods 6 to flip synchronously is provided inside the rotating cylinder 5. A transfer port 7 connected to the interior is fixedly provided on the side wall of the hydrolysis vessel 1 near the lower end.

[0031] In this embodiment, the circumferential wall of the rotating shaft cylinder 5 is provided with first clearance holes 8 at positions corresponding to each of the stirring rods 6, and a pair of mounting plates 9 are fixedly disposed on the outside of the first clearance holes 8. A sector gear 10 is rotatably mounted between each pair of mounting plates 9. One end of each sector gear 10 is fixedly connected to the end of the corresponding stirring rod 6, and the other end of each sector gear 10 passes through the first clearance hole 8 and extends into the interior of the rotating shaft cylinder 5.

[0032] The flipping drive mechanism includes a lifting slide rod 11 slidably installed inside the rotating shaft cylinder 5. The peripheral wall of the lifting slide rod 11 is provided with a transmission rack 12 that meshes with the corresponding sector gear 10 at a position corresponding to each sector gear 10.

[0033] The upper end of the inner circumferential wall of the rotating shaft cylinder 5 is provided with a plurality of limiting grooves 13 evenly distributed along the circumferential direction. The lifting slide rod 11 is fixedly fitted with a limiting sleeve 14 near the upper end. The outer circumferential wall of the limiting sleeve 13 is provided with a plurality of limiting protrusions 15 that slide and cooperate with each of the limiting grooves 13.

[0034] The top plate of the hydrolysis reactor 1 is provided with a reciprocating drive assembly for driving the lifting slide rod 11 to reciprocate vertically. Specifically, the reciprocating drive assembly includes a drive motor 16 fixedly installed on the top plate of the hydrolysis reactor 1 and a drive connecting rod 17 slidably disposed in the middle of the top plate of the hydrolysis reactor 1. Specifically, a motor mounting base 18 is fixedly installed on the upper part of the top plate of the hydrolysis reactor 1, and the drive motor 16 is fixedly installed on the motor mounting base 18. An eccentric wheel 19 is connected to the drive shaft of the drive motor 16, and an annular connecting groove 20 is opened on the side of the eccentric wheel 19 away from the drive motor 16. A connecting post 21 that slides with the connecting groove 20 is fixedly installed at the upper end of the drive connecting rod 17, the middle part of the drive connecting rod 17 slides with a guide through hole 22 opened in the middle of the top plate of the hydrolysis reactor 1, and the lower end of the drive connecting rod 17 is rotatably connected to the upper end of the lifting slide rod 11.

[0035] A connecting plate 23 is fixedly installed at the lower end of the drive linkage 17, and a connector 24 is fixedly installed at the upper end of the lifting slide rod 11. The connector 24 is clearance-fitted with a connecting hole 25 opened at the lower end of the connecting plate 23. A connecting sleeve 26 is fitted under the connector 24 on the lifting slide rod 11. The central hole of the connecting sleeve 26 is clearance-fitted with the lifting slide rod 11. The portion of the connecting sleeve 26 near its outer edge is fixedly connected to the connecting plate 23 by a plurality of connecting screws 27 evenly arranged along its circumference.

[0036] The centrifuge device includes a cylindrical outer shell 28, a centrifuge drum 29 is rotatably mounted inside the outer shell 28, and a centrifuge motor 30 for driving the centrifuge drum 29 to rotate is mounted outside the outer shell 28.

[0037] Limiting protrusions 31 are fixedly provided on the outer peripheral wall of the centrifugal drum 29 near both ends, and limiting ring grooves 32 are provided on the inner peripheral wall of the outer shell 28 at positions corresponding to each limiting protrusion 31. The limiting protrusions 31 are rotatably engaged with the corresponding limiting ring grooves 32, and a rotary sealing ring 33 is installed between the outer peripheral wall of the limiting protrusion 31 and the inner peripheral wall of the limiting ring groove 32.

[0038] A drive gear 34 is connected to the drive shaft of the centrifugal motor 30. The lower end of the drive gear 34 passes through the second clearance hole opened on the outer shell 28 and meshes with the driven gear ring 35 fixedly fitted on the peripheral wall of the centrifugal drum 29.

[0039] The bottom center of the outer shell 28 is provided with a drain outlet 36 that communicates with its interior. An inner spiral blade 37 is fixedly provided on the inner peripheral wall of the centrifugal drum 29, and dehydration through holes 38 are evenly distributed on the peripheral wall of the centrifugal drum 29.

[0040] One end of the centrifugal drum 29 is equipped with a feed pipe 39 that communicates with its interior. The middle part of the feed pipe 39 is rotatably engaged with the end of the outer shell 28. One end of the feed pipe 39 extending to the outside of the outer shell 28 is connected to one end of the guide pipe 41 through a rotary joint 40. The other end of the guide pipe 41 is connected to the transfer port 7. An on / off valve 42 is installed at the connection position between the guide pipe 41 and the transfer port 7, and a power pump 43 is installed in the middle of the guide pipe 41.

[0041] The end of the centrifugal drum 29 away from the feed pipe 39 is connected to a discharge mechanism fixedly disposed at the end of the outer casing 28. The discharge mechanism includes a discharge cylinder 44 fixedly disposed at the end of the outer casing 28, one end of which extends into the interior of the outer casing 28 and rotatably engages with the end of the centrifugal drum 29 away from the feed pipe 39. A rotating shaft 45 is rotatably mounted inside the discharge cylinder 44, and an outer spiral blade 46 is fixedly fitted on the rotating shaft 45. A discharge motor 47 for driving the rotating shaft 45 to rotate is fixedly mounted on the outer side of the end of the discharge cylinder 44 located outside the outer casing, and a discharge hopper 48 communicating with the discharge motor 47 is fixedly disposed at the bottom of the discharge cylinder 44 near the discharge motor 47.

[0042] The specific working process of this invention is as follows:

[0043] The oxidized material from the preparation of dichloroquinoline acid, along with a measured amount of water for hydrolysis, is introduced into the hydrolysis reactor through the feed pipe and water supply pipe. A stirring motor drives the rotating shaft to rotate, causing the stirring rods on the rotating shaft to mix the material and water for the hydrolysis reaction. Simultaneously, the drive motor drives an eccentric wheel to rotate. During the rotation of the eccentric wheel, the sliding limit relationship between the connecting groove and the connecting column drives the drive connecting rod to perform a linear reciprocating motion in the vertical direction. The lifting slide rod located inside the rotating shaft rotates together with the rotating shaft and, under the action of the drive connecting rod, also performs a linear reciprocating motion in the vertical direction. When the lifting slide rod moves linearly, the meshing transmission action between the various transmission racks on its circumferential wall and the corresponding sector gears on the rotating circumferential tube causes each stirring rod to rotate along with the sector gears. Therefore, the stirring rods rotate along the axis of the rotating shaft sleeve and can also swing and rotate vertically, thus stirring the material and water in the hydrolysis reactor in different directions, thereby improving the efficiency of the hydrolysis reaction, ensuring thorough mixing of the material and water, and guaranteeing the hydrolysis effect.

[0044] After hydrolysis, the material is conveyed to the centrifuge drum through a feed pipe. The centrifuge motor drives the drum to rotate, automatically separating the hydrolyzed material from the water. During this process, the separated water enters the gap between the outer shell and the centrifuge drum through the dehydration holes on the drum and is finally discharged through the drain outlet at the bottom of the outer shell. The centrifuged material is automatically conveyed to the discharge cylinder by the inner spiral blades of the centrifuge drum. In the discharge cylinder, the rotating shaft and outer spiral blades discharge the centrifuged material from the discharge port. After the centrifuged material is collected at the discharge port, it can be transferred to the sodium salt processing workshop for the next step.

[0045] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A hydrolytic centrifugation apparatus for preparing dichloroquinoline acid, characterized in that: Includes hydrolysis equipment and centrifugation equipment; The hydrolysis device includes a hydrolysis vessel. A feed pipe and a water supply pipe, connected to the interior of the top plate of the hydrolysis vessel, are provided. A stirring motor is fixedly installed at the bottom of the hydrolysis vessel. The drive shaft of the stirring motor is connected to a rotating shaft cylinder rotatably disposed in the middle of the interior of the hydrolysis vessel. Multiple sets of stirring rods are evenly spaced vertically on the outer side of the rotating shaft cylinder. Each set of stirring rods is hinged to the outside of the rotating shaft cylinder at even intervals along its circumference. A flipping drive mechanism is provided inside the rotating shaft cylinder to drive all the stirring rods to flip synchronously. A transfer port, connected to the interior of the hydrolysis vessel, is provided on the side wall near the lower end. The centrifugal device includes a cylindrical outer shell, a centrifugal drum rotatably mounted inside the outer shell, and a centrifugal motor for driving the centrifugal drum to rotate on the outside of the outer shell. A drain outlet communicating with the inside of the outer shell is located in the middle of the bottom of the outer shell. A feed pipe communicating with the inside of the centrifugal drum is located at one end of the centrifugal drum. The middle part of the feed pipe is rotatably engaged with the end of the outer shell. One end of the feed pipe extending outside the outer shell is connected to one end of a guide pipe via a rotary joint. The other end of the guide pipe is connected to the rotating port. The end of the centrifugal drum away from the feed pipe is connected to a discharge mechanism fixedly mounted at the end of the outer shell.

2. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 1, characterized in that: The rotating shaft has first clearance holes on its peripheral wall at positions corresponding to each of the stirring rods, and a pair of mounting plates are fixedly installed on the outside of the first clearance holes. A sector gear is rotatably installed between each pair of mounting plates. One end of each sector gear is fixedly connected to the end of the corresponding stirring rod, and the other end of each sector gear passes through the first clearance hole and extends into the interior of the rotating shaft. The flipping drive mechanism includes a lifting slide rod slidably installed inside the rotating shaft. A transmission rack that meshes with the corresponding sector gear is fixedly installed on the peripheral wall of the lifting slide rod at positions corresponding to each of the sector gears. A reciprocating drive assembly for driving the lifting slide rod to reciprocate vertically is provided on the top plate of the hydrolysis vessel.

3. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 2, characterized in that: The upper end of the inner circumferential wall of the rotating shaft cylinder is provided with a plurality of limiting grooves evenly distributed along the circumferential direction. The lifting slide rod is fixedly fitted with a limiting sleeve near the upper end. The outer circumferential wall of the limiting sleeve is provided with a plurality of limiting protrusions that slide and cooperate with each of the limiting grooves.

4. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 2, characterized in that: The reciprocating drive assembly includes a drive motor fixedly mounted on the top plate of the hydrolysis reactor and a drive connecting rod slidably mounted in the middle of the top plate of the hydrolysis reactor; a motor mounting base is fixedly mounted on the upper part of the top plate of the hydrolysis reactor, and the drive motor is fixedly mounted on the motor mounting base; an eccentric wheel is connected to the drive shaft of the drive motor, and an annular connecting groove is opened on the side of the eccentric wheel away from the drive motor; a connecting column that slides with the connecting groove is fixedly mounted on the upper end of the drive connecting rod, the middle part of the drive connecting rod slides with a guide through hole opened in the middle of the top plate of the hydrolysis reactor, and the lower end of the drive connecting rod is rotatably connected to the upper end of the lifting slide rod.

5. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 4, characterized in that: A connecting plate is fixedly provided at the lower end of the drive linkage, and a connector is fixedly provided at the upper end of the lifting slide rod. The connector is clearance-fitted with a connecting hole opened at the lower end of the connecting plate. A connecting sleeve is sleeved on the lower part of the lifting slide rod below the connector. The central hole of the connecting sleeve is clearance-fitted with the lifting slide rod. The part of the connecting sleeve near the outer edge is fixedly connected to the connecting plate by a plurality of connecting screws evenly arranged along its circumference.

6. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 1, characterized in that: An on / off valve is provided at the connection between the feed pipe and the transfer port, and a power pump is provided in the middle of the feed pipe.

7. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 1, characterized in that: Limiting protrusions are fixedly provided on the outer peripheral wall of the centrifugal drum near both ends. Limiting ring grooves are provided on the inner peripheral wall of the outer shell at positions corresponding to each limiting protrusion. The limiting protrusions are rotatably engaged with the corresponding limiting ring grooves, and a rotary sealing ring is provided between the outer peripheral wall of the limiting protrusion and the inner peripheral wall of the limiting ring groove.

8. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 1, characterized in that: The centrifugal drum has an inner spiral blade fixedly installed on its inner circumferential wall, and the centrifugal drum has dehydration through holes evenly distributed on its circumferential wall.

9. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 1, characterized in that: A drive gear is connected to the drive shaft of the centrifugal motor. The lower end of the drive gear passes through the second clearance hole opened on the outer shell and meshes with the driven gear ring fixedly sleeved on the peripheral wall of the centrifugal drum.

10. The hydrolytic centrifugation apparatus for preparing dichloroquinoline acid according to claim 1, characterized in that: The discharge mechanism includes a discharge cylinder fixedly disposed at the end of the outer shell. One end of the discharge cylinder extends into the interior of the outer shell and is rotatably engaged with the end of the centrifugal drum away from the feed pipe. A rotating shaft is rotatably disposed inside the discharge cylinder, and an outer spiral blade is fixedly sleeved on the rotating shaft. A discharge motor for driving the rotating shaft to rotate is fixedly disposed on the outer side of the end of the discharge cylinder located outside the outer shell. A discharge hopper communicating with the interior of the discharge cylinder is fixedly disposed at the bottom of the discharge cylinder near the discharge motor.

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