Centrifugal mother liquor and rinse methanol split recovery apparatus

Abstract

The application relates to a centrifugal mother liquor and flushing methanol shunt recovery equipment and belongs to the technical field of chemical equipment. The structure of the shunt recovery equipment comprises a centrifuge, a drain port is arranged at the bottom of the centrifuge, a shunt recovery device is arranged on the drain port, the shunt recovery device comprises a recovery pipeline, a double-cavity isolation shell and a swing flap assembly, a liquid inlet is arranged at the top of the double-cavity isolation shell, one end of the recovery pipeline is arranged on the drain port, the other end of the recovery pipeline is arranged on the liquid inlet, the liquid inlet is communicated with the drain port through the recovery pipeline, a partition plate is arranged in the double-cavity isolation shell, the double-cavity isolation shell is divided into a mother liquor collecting cavity and a flushing collecting cavity by the partition plate, the swing flap assembly is arranged on the partition plate, a liquid leakage assembly is slidably arranged in the liquid inlet, and the application has the technical effect of accurate shunt collection of centrifugal mother liquor and flushing methanol.

Description

Technical Field

[0001] This application relates to the technical field of chemical equipment, and in particular to a centrifugal mother liquor and rinsing methanol separation and recovery device. Background Technology

[0002] In precision manufacturing fields such as chemical and pharmaceutical industries, centrifugal separation is a key process for material purification. During the process, centrifugal mother liquor containing high-value residual components and rinsing methanol used for equipment cleaning are generated, both of which have significant recycling and reuse value.

[0003] To achieve efficient resource recovery and environmentally compliant treatment, centrifugal mother liquor typically needs to be temporarily stored, purified, and then returned to the production system. Specifically, it needs to be collected in a mother liquor tank for buffering and sedimentation, and then sent to a distillation column for precise fractionation to extract the useful components. Rinse methanol needs to be collected in a washing tank to remove impurities, then sent to an extraction vessel to separate trace pollutants, purified, and recycled as a rinsing solution. Therefore, developing efficient separation and recovery equipment has become an important direction for improving production efficiency. Existing centrifugal mother liquor and rinsing methanol recovery equipment mostly adopts manual valve switching or single-chamber collection and then separation. Such equipment is prone to cross-contamination of the two liquids due to slow manual operation or mixed collection.

[0004] Regarding the aforementioned technologies, the applicant believes that there is a deficiency in achieving precise separation and collection of centrifugal mother liquor and rinsing methanol. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a separate recovery device for centrifugal mother liquor and rinsing methanol.

[0006] This application provides a centrifugal mother liquor and rinsing methanol separation and recovery device, which adopts the following technical solution: A centrifugal mother liquor and rinsing methanol separation and recovery device includes a centrifuge with a drain outlet at the bottom. A separation and recovery device is installed on the drain outlet, comprising a recovery pipeline, a dual-chamber isolation shell, and a swing-type flap assembly. An inlet is located at the top of the dual-chamber isolation shell. One end of the recovery pipeline is connected to the drain outlet, and the other end is connected to the inlet. A partition is installed inside the dual-chamber isolation shell, dividing it into a mother liquor collection chamber and a rinsing collection chamber. The swing-type flap assembly is mounted on the partition. A leakage component is slidably installed inside the inlet.

[0007] By adopting the above technical solution, including a centrifuge with a drain outlet at the bottom and a diversion and recovery device on the drain outlet, the diversion and recovery device includes a recovery pipeline, a dual-chamber isolation shell, and a swing flap assembly. The centrifugal mother liquor often contains some incompletely separated raw materials or useful intermediate products, and the rinsing methanol itself is a solvent with recycling value. This equipment, through the isolation of the mother liquor collection chamber and the rinsing collection chamber, avoids cross-contamination caused by the mixing of the two liquids, allowing the recovered high-purity rinsing methanol to be reused in the centrifuge's material rinsing process. The centrifugal mother liquor can also be introduced into subsequent processing steps to extract residual materials. Compared with mixed discharge, this significantly reduces the waste of useful materials and solvents. By controlling the swing flap assembly and the leakage assembly, automatic diversion and introduction of liquids can be achieved. At the same time, methanol is volatile and has a certain degree of toxicity, and leakage risks easily occur during manual operation. Automated diversion reduces direct contact between personnel and methanol, lowering safety hazards such as poisoning and fire.

[0008] Preferably, the leakage assembly includes a leakage plate and a reset spring; the leakage plate is slidably disposed in the liquid inlet, and the leakage plate is provided with multiple sets of leakage holes; one end of the reset spring is fixedly disposed on the liquid inlet, and the other end of the reset spring is fixedly disposed on the top of the leakage plate; a switching groove is provided on the side of the leakage plate, and a mating inclined surface is provided on the side of the switching groove.

[0009] By adopting the above technical solution, the leakage hole slows down the leakage speed, allowing the liquid to accumulate briefly on the leakage plate. The liquid gravity drives the leakage plate to slide downwards, which in turn triggers the subsequent structure and the swing flap assembly through the switching groove and the cooperating inclined surface. The precise triggering of the branch switching is achieved solely by the properties of the liquid itself, avoiding the problem of liquid mixing caused by the swing flap not responding in time due to the excessively fast drainage speed. This ensures that the mother liquor and flushing methanol can be accurately introduced into the corresponding collection chamber at different drainage stages, improving the reliability of branch recovery.

[0010] Preferably, a switching hole is provided on the side of the liquid inlet, and a mating hole is provided on the side of the switching hole, the mating hole communicating with the liquid inlet; a switching component is provided in the switching hole, one end of the switching component is slidably disposed in the switching hole, and the other end of the switching component is disposed in the mother liquor collection chamber.

[0011] By adopting the above technical solution, the switching hole provides a stable sliding guide for the switching component, and the hole enables precise docking between the switching component and the leakage component in the inlet. This structure avoids the switching component's movement deviation or force transmission loss, ensures that the sliding displacement of the leakage plate can be instantly transmitted to the switching component, and makes the locking action strictly synchronized with the leakage plate state, improving the accuracy of branch switching and eliminating liquid flow mixing caused by transmission lag.

[0012] Preferably, the switching assembly includes a switching cylinder, a gear pin, a drive pin, and a drive spring; the top of the switching cylinder is slidably disposed within the switching hole, and the bottom of the switching cylinder is disposed within the mother liquor collection chamber; a drive chamber is disposed at the upper part of the switching cylinder, and a gear chamber is disposed at the lower part of the switching cylinder; one end of the drive pin is slidably disposed within the drive chamber; the drive spring is sleeved on the drive pin, one end of the drive spring is fixedly disposed on the switching cylinder, and the other end of the drive spring is fixedly disposed on the drive pin; one end of the gear pin is slidably disposed within the gear chamber; the drive chamber communicates with the gear chamber.

[0013] By adopting the above technical solution, during the mother liquor discharge stage, the drain plate slides down, causing the drive pin to spring into the switching groove, and the gear pin simultaneously retracts into the cavity to unlock the channel, ensuring the smooth flow of mother liquor; after the mother liquor is discharged, the drain plate resets, the drive pin disengages from the switching groove, and the gear pin pops out to lock the channel, completely blocking the seepage of rinsing methanol. Compared with the traditional single valve control, this structure avoids liquid mixing caused by accidental triggering or incomplete switching, significantly improving separation accuracy and ensuring the purity of recovered materials and solvents.

[0014] Preferably, the swing flap assembly includes a first baffle, a second baffle, a first spring, and a second spring; one end of the first baffle is rotatably disposed on one side of the partition, and the other end of the first baffle is disposed in the mother liquor collection chamber; one end of the second baffle is rotatably disposed on the inner wall of the rinsing collection chamber, and the other end of the second baffle is disposed on the other side of the partition; one end of the first spring is rotatably disposed on the first baffle, and the other end of the first spring is rotatably disposed on the partition; one end of the second spring is rotatably disposed on the second baffle, and the other end of the second spring is rotatably disposed on the inner wall of the liquid inlet.

[0015] By adopting the above technical solution, the first baffle and the second baffle correspond to the mother liquor collection chamber and the flushing collection chamber, respectively. Through symmetrical arrangement, they form a reverse linkage mechanism of opening and closing. During the mother liquor discharge stage, the first baffle opens under the cooperation of liquid flow pressure and unlocking structure, and the second baffle tightly adheres to the partition under the pre-tightening force of the second spring, blocking the mother liquor from flowing into the flushing collection chamber. During the methanol collection stage, the first baffle resets and closes under the action of the first spring, and the second baffle flips open under the liquid flow pressure, preventing methanol from seeping into the mother liquor collection chamber. Compared with the single flap design, the double baffle reverse sealing completely eliminates the risk of mixing of the two liquids and greatly improves the separation purity.

[0016] Preferably, the partition is provided with an unlocking structure, which includes a trigger block, a trigger groove, a locking block, a locking groove, and a locking spring; the trigger groove is located at the top of the partition inside the mother liquor collection chamber; one end of the trigger block is slidably disposed in the trigger groove, and the other end of the trigger block is provided with an unlocking ramp; the locking spring is sleeved on the trigger block, one end of the locking spring is fixedly disposed on the partition, and the other end of the locking spring is disposed on the trigger block; the locking groove is located at the top of the partition inside the rinsing collection chamber, and one end of the locking block is slidably disposed in the locking groove; the trigger groove and the locking groove communicate with each other.

[0017] By adopting the above technical solution, during the mother liquor collection stage, the locking block pops out under the action of the locking spring, forming a stable lock with the swing flap, ensuring that the second baffle will not shift due to liquid flow impact or vibration when the mother liquor is discharged; when the mother liquor is full, it will push the trigger block to drive the locking block to retract into the locking groove through the unlocking slope, achieving precise unlocking, and the second baffle can rotate, completely avoiding the mis-switching of the chamber channel caused by external force interference during equipment operation, ensuring strict isolation between the mother liquor and the rinsing methanol, and further improving the separation accuracy; the unlocking slope design of the trigger block converts the vertical buoyancy of the float into the lateral driving force of the locking block, with smooth transmission direction conversion and low force transmission loss; at the same time, the preload of the locking spring ensures that the locking block always remains in the pop-out locked state when not unlocked, and can quickly reset after unlocking.

[0018] Preferably, the mother liquor collection chamber is equipped with a float.

[0019] By adopting the above technical solution, the float simultaneously completes two key actions after the mother liquor is full: the side of the float abuts against the trigger block to unlock the second baffle and rotate, and the top of the float abuts against the switching cylinder to disengage the drive pin from the mating hole. On the one hand, this ensures that the second baffle can be smoothly flipped and switched to the methanol collection channel. On the other hand, it avoids the leakage plate sliding down and accidentally triggering the switching component when flushing methanol discharge, keeping the first baffle locked. This completely eliminates the risk of the channel switching back when the mother liquor is not completely drained or when methanol collection occurs, achieving absolute isolation between the two liquids and achieving separation accuracy that meets the operating conditions' limit requirements. The displacement of the float is synchronously transmitted to the unlocking structure and the switching component through direct contact, eliminating the need for intermediate transmission links.

[0020] Preferably, the mother liquor collection chamber is connected to a mother liquor tank; the rinsing collection chamber is connected to a washing liquid tank.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. During the mother liquor discharge stage, the drain plate slides down, driving the drive pin to spring into the switching groove, and the gear pin simultaneously retracts into the cavity to unlock the channel, ensuring smooth flow of mother liquor. After the mother liquor is discharged, the drain plate resets, the drive pin disengages from the switching groove, and the gear pin pops out to lock the channel, completely blocking the seepage of flushing methanol. Compared with traditional single valve control, this interlocking structure avoids liquid mixing caused by accidental triggering or incomplete switching, significantly improving separation accuracy and ensuring the purity of recovered materials and solvents.

[0022] 2. After the mother liquor is full, the float simultaneously completes two key actions: the side of the float abuts against the trigger block to unlock the second baffle and rotate, and the top of the float abuts against the switching cylinder to disengage the drive pin from the mating hole. This ensures that the second baffle can smoothly flip and switch to the methanol collection channel, and also prevents the leakage plate from sliding down and accidentally triggering the switching component when flushing methanol discharge, keeping the first baffle locked. This completely eliminates the risk of the channel switching back when the mother liquor is not completely drained or when methanol collection occurs, achieving absolute isolation between the two liquids and achieving separation accuracy that meets the operating conditions' limits. The displacement of the float is synchronously transmitted to the unlocking structure and the switching component through direct contact, without the need for intermediate transmission links. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0024] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the dual-cavity isolation shell in the embodiment.

[0025] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0026] Figure 4 yes Figure 2 A magnified view of part B in the middle.

[0027] Explanation of reference numerals in the attached drawings: 1. Centrifuge; 11. Drain outlet; 2. Diverter recovery device; 21. Recovery pipeline; 22. Dual-chamber isolation shell; 221. Liquid inlet; 2211. Switching hole; 2212. Mating hole; 222. Partition; 223. Mother liquor collection chamber; 224. Rinsing collection chamber; 23. Swinging flap assembly; 231. First baffle; 232. Second baffle; 233. First spring; 234. Second spring; 3. Leakage assembly; 31. Leakage point. 311. Plate; 312. Leakage hole; 313. Switching groove; 314. Mating bevel; 32. Reset spring; 4. Switching assembly; 41. Switching cylinder; 415. Drive chamber; 416. Gear chamber; 42. Gear pin; 43. Drive pin; 44. Drive spring; 5. Unlocking structure; 51. Trigger block; 517. Unlocking bevel; 52. Trigger groove; 53. Locking block; 54. Locking groove; 55. Locking spring; 6. Float block; 7. Mother liquor tank; 8. Washing liquid tank. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses a separate recovery device for centrifuged mother liquor and rinsing methanol. (Refer to...) Figure 1 and Figure 2 The system includes a centrifuge 1, with a drain outlet 11 at its bottom and a branch recovery device 2 on the drain outlet 11. The branch recovery device 2 includes a recovery pipe 21, a double-chamber isolation shell 22, and a swing flap assembly 23. The double-chamber isolation shell 22 has a liquid inlet 221 at its top. One end of the recovery pipe 21 is connected to the drain outlet 11, and the other end is connected to the liquid inlet 221. The liquid inlet 221 is connected to the drain outlet 11 via the recovery pipe 21. The centrifuge 1 first separates the mother liquor, then rinses the separated solids. After the mother liquor separation... The liquid first enters the diversion and recovery device 2, and then the flushing liquid enters the diversion and recovery device 2 again; a partition 222 is provided inside the double-chamber isolation shell 22, which divides the double-chamber isolation shell 22 into a mother liquor collection chamber 223 and a flushing collection chamber 224; a swing flap assembly 23 is provided on the partition 222; the mother liquor collection chamber 223 is connected to the mother liquor tank 7; the flushing collection chamber 224 is connected to the washing liquid tank 8. After the mother liquor is collected in the mother liquor collection chamber 223 and the flushing collection chamber 224, it enters the distillation column through the mother liquor tank 7, and then enters the extraction vessel through the washing liquid tank 8.

[0030] Reference Figure 2 The swing flap assembly 23 includes a first baffle 231, a second baffle 232, a first spring 233, and a second spring 234. One end of the first baffle 231 is rotatably disposed on one side of the partition 222, and the other end of the first baffle 231 is disposed in the mother liquor collection chamber 223. One end of the second baffle 232 is rotatably disposed on the inner wall of the rinsing collection chamber 224, and the other end of the second baffle 232 is disposed on the other side of the partition 222. One end of the first spring 233 is rotatably disposed on the first baffle 231, and the other end of the first spring 233 is rotatably disposed on the partition 222. One end of the second spring 234 is rotatably disposed on the second baffle 232, and the other end of the second spring 234 is rotatably disposed on the inner wall of the liquid inlet 221.

[0031] Reference Figure 2 and Figure 3The leakage assembly 3 includes a leakage plate 31 and a return spring 32. The leakage plate 31 is slidably disposed in the inlet 221. The leakage plate 31 is provided with multiple sets of leakage holes 311, which slow down the leakage speed, allowing the liquid to accumulate briefly on the leakage plate 31. The liquid gravity drives the leakage plate 31 to slide downward. One end of the return spring 32 is fixedly disposed on the inlet 221, and the other end of the return spring 32 is fixedly disposed on the top of the leakage plate 31. A switching groove 312 is provided on the side of the leakage plate 31, and a mating inclined surface 313 is provided on the side of the switching groove 312. A switching hole 2211 is provided on the side of the inlet 221, and a mating hole 2212 is provided on the side of the switching hole 2211. The mating hole 2212 communicates with the inlet 221. A switching component 4 is disposed in the switching hole 2211, with one end of the switching component 4 slidably disposed in the switching hole 2211 and the other end of the switching component 4 disposed in the mother liquor collection chamber 223.

[0032] Reference Figure 2 and Figure 3 The switching assembly 4 includes a switching cylinder 41, a gear pin 42, a drive pin 43, and a drive spring 44. The top of the switching cylinder 41 is slidably disposed within the switching hole 2211, and the bottom of the switching cylinder 41 is disposed within the mother liquor collection chamber 223. A drive chamber 411 is disposed at the upper part of the switching cylinder 41, and a gear chamber 412 is disposed at the lower part of the switching cylinder 41. One end of the drive pin 43 is slidably disposed within the drive chamber 411. The drive spring 44 is sleeved on the drive pin 43, and one end of the drive spring 44 is disposed within the drive chamber 411. The drive spring 44 is fixedly mounted on the switching cylinder 41, and the other end of the drive spring 44 is fixedly mounted on the drive pin 43; one end of the gear pin 42 is slidably mounted in the gear cavity 412; the drive cavity 411 is connected to the gear cavity 412; when the centrifuged mother liquor is discharged, the drain plate 31 slides downward, the drive pin 43 is ejected into the switching groove 312 by the force of the drive spring 44, and the gear pin 42 slides into the gear cavity 412, so that the first baffle 231 can rotate, and the centrifuged mother liquor enters the mother liquor collection chamber 223.

[0033] Reference Figure 2 and Figure 4The partition 222 is provided with an unlocking structure 5, which includes a trigger block 51, a trigger groove 52, a locking block 53, a locking groove 54, and a locking spring 55. The trigger groove 52 is located on the top of the partition 222 inside the mother liquor collection chamber 223. One end of the trigger block 51 is slidably disposed in the trigger groove 52, and the other end of the trigger block 51 is provided with an unlocking inclined surface 511. The locking spring 55 is sleeved on the trigger block 51, with one end of the locking spring 55 fixedly disposed on the partition 222 and the other end of the locking spring 55 disposed on the trigger block 51. The locking groove 54 is located on the top of the partition 222 inside the rinsing collection chamber 224, and one end of the locking block 53 is slidably disposed in the locking groove 54. The trigger groove 52 and the locking groove 54 are in communication. The mother liquor collection chamber 223 is provided with a float 6. When centrifuged mother liquor enters the mother liquor collection chamber 223, the float 6 floats upward. When all the centrifuged mother liquor enters the mother liquor collection chamber 223, the leak plate 31 is no longer under the weight of the liquid. The leak plate 31 slides upward and resets through the reset spring 32, causing the drive pin 43 to retract into the switching hole 2211. At the same time, the float 6 floats to the top, and the side of the float 6 abuts against the trigger block 51 and slides into the trigger groove 52, causing the locking block 53 to retract into the locking groove 54, unlocking the rotation of the second baffle 232. The top of the float 6 abuts against the switching assembly 4, and the switching cylinder 41 slides upward, causing the drive pin 43 to disengage from the mating hole 2212. When the leak plate 31 slides downward again, the drive pin 43 will no longer pop out through the mating hole 2212 into the switching groove 312 of the leak plate 31. At this time, the gear pin 42 remains popped out and firmly abuts against the gear pin 42. The first baffle 231 no longer rotates, preventing the flushing methanol from leaking into the mother liquor collection chamber 223.

[0034] The working principle of the centrifugal mother liquor and rinsing methanol separation and recovery device in this application is as follows: After the centrifuge 1 is started, the mother liquor separation process is carried out first. The separated mother liquor enters the recovery pipeline 21 through the bottom drain 11 and flows into the separation and recovery device 2 through the liquid inlet 221. The mother liquor continuously flows into the drain plate 31. Its gravity overcomes the elastic force of the reset spring 32 and drives the drain plate 31 to slide down along the liquid inlet 221. The drain hole 311 slows down the liquid flow rate to ensure that the drain plate 31 obtains sufficient driving force. When the drain plate 31 slides down, the mating inclined surface 313 of the side switching groove 312 aligns with the driving pin 43 of the switching component 4. The driving pin 43 pops out under the action of the reset force of the driving spring 44 and embeds into the switching groove 312. At the same time, the driving pin 43 pushes the gear pin 42. The switch cylinder 41 retracts into the gear chamber 412 of the switching cylinder 41, releasing the restriction on the first baffle 231. The mother liquor falls through the drain hole 311 to the top of the double-chamber isolation housing 22, impacting the first baffle 231 and causing it to rotate around the partition 222 and open. The mother liquor flows smoothly into the mother liquor collection chamber 223. As the mother liquor is continuously injected, the liquid level in the mother liquor collection chamber 223 rises, causing the float 6 to gradually float up. When the mother liquor separation process of the centrifuge 1 is completed and all the mother liquor enters the mother liquor collection chamber 223, the drain plate 31 no longer bears the weight of the liquid and slides upward to reset under the pulling force of the reset spring 32. The switching groove 312 disengages from the drive pin 43, the drive pin 43 retracts into the switching hole 2211, and the gear pin 42 resets and pops out under the action of internal pressure. The float 6 rises with the liquid level. When the float 6 is raised to the top of the mother liquor collection chamber 223, it abuts against the trigger block 51 of the unlocking structure 5, pushing the trigger block 51 to slide inward along the trigger groove 52. The unlocking inclined surface 511 of the trigger block 51 squeezes the locking block 53, causing the locking block 53 to retract into the locking groove 54, thus releasing the locking restriction on the second baffle 232. At the same time, the top of the float 6 abuts against the switching cylinder 41, driving the switching cylinder 41 to slide upward, so that the drive pin 43 completely disengages from the mating hole 2212 of the liquid inlet 221, ensuring that the drive pin 43 will not pop out when the subsequent leakage plate 31 slides. The centrifuge 1 enters the solid rinsing process. The rinsed liquid flows back into the liquid inlet 221 through the drain 11 and the recovery pipe 21. The rinsing liquid falls onto the leakage plate 31, driving the leakage plate 31 to slide downward. Since the switching component 4 has been lifted by the float 6, the drive pin 43 cannot pop out, and the stop pin 42 remains in the popped-out state and firmly abuts against the first baffle 231, restricting the rotation of the first baffle 231. The flushing liquid continues to fall and impacts the second baffle 232. At this time, the second baffle 232 is unlocked and rotates around the inner wall of the flushing collection chamber 224 under the combined action of the liquid impact force and the second spring 234. The flushing liquid flows into the flushing collection chamber 224. When the flushing process is completed and all the flushing liquid is collected in the flushing collection chamber 224, the mother liquor in the mother liquor collection chamber 223 is transported to the mother liquor tank 7 and then enters the distillation column for purification. The flushing liquid in the flushing collection chamber 224 is transported to the washing liquid tank 8 and then enters the extraction vessel for recycling, completing the entire branch recycling process.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A centrifugal mother liquor and rinsing methanol separation and recovery device, comprising a centrifuge (1), wherein the centrifuge (1) is provided with a drain outlet (11) at its bottom, characterized in that: A branch recovery device (2) is provided on the drain outlet (11). The branch recovery device (2) includes a recovery pipeline (21), a double-cavity isolation shell (22), and a swing flap assembly (23). A liquid inlet (221) is provided on the top of the double-cavity isolation shell (22). One end of the recovery pipeline (21) is provided on the drain outlet (11), and the other end of the recovery pipeline (21) is provided on the liquid inlet (221). The liquid inlet (221) is connected to the drain outlet (11) through the recovery pipeline (21). A partition (222) is provided inside the double-cavity isolation shell (22). The partition (222) divides the double-cavity isolation shell (22) into a mother liquor collection chamber (223) and a flushing collection chamber (224). The swing flap assembly (23) is provided on the partition (222). A leakage assembly (3) is slidably provided inside the liquid inlet (221).

2. The centrifugal mother liquor and rinsing methanol separation and recovery device according to claim 1, characterized in that: The leakage assembly (3) includes a leakage plate (31) and a reset spring (32); the leakage plate (31) is slidably disposed in the liquid inlet (221), and the leakage plate (31) is provided with multiple sets of leakage holes (311); one end of the reset spring (32) is fixedly disposed on the liquid inlet (221), and the other end of the reset spring (32) is fixedly disposed on the top of the leakage plate (31); a switching groove (312) is provided on the side of the leakage plate (31), and a mating inclined surface (313) is provided on the side of the switching groove (312).

3. The centrifugal mother liquor and rinsing methanol separation and recovery device according to claim 1, characterized in that: A switching hole (2211) is provided on the side of the liquid inlet (221), and a mating hole (2212) is provided on the side of the switching hole (2211). The mating hole (2212) communicates with the liquid inlet (221). A switching component (4) is provided inside the switching hole (2211). One end of the switching component (4) is slidably disposed in the switching hole (2211), and the other end of the switching component (4) is disposed in the mother liquor collection chamber (223).

4. The centrifugal mother liquor and rinsing methanol separation and recovery device according to claim 3, characterized in that: The switching assembly (4) includes a switching cylinder (41), a gear pin (42), a drive pin (43), and a drive spring (44); the top of the switching cylinder (41) is slidably disposed in the switching hole (2211), and the bottom of the switching cylinder (41) is disposed in the mother liquor collection chamber (223); a drive chamber (411) is disposed at the upper part of the switching cylinder (41), and a gear chamber (412) is disposed at the lower part of the switching cylinder (41); the drive pin One end of (43) is slidably disposed in the drive cavity (411); the drive spring (44) is sleeved on the drive pin (43), one end of the drive spring (44) is fixedly disposed on the switching cylinder (41), and the other end of the drive spring (44) is fixedly disposed on the drive pin (43); one end of the gear pin (42) is slidably disposed in the gear cavity (412); the drive cavity (411) and the gear cavity (412) are in communication.

5. The centrifugal mother liquor and rinsing methanol separation and recovery device according to claim 1, characterized in that: The swing flap assembly (23) includes a first baffle (231), a second baffle (232), a first spring (233), and a second spring (234); one end of the first baffle (231) is rotatably disposed on one side of the partition (222), and the other end of the first baffle (231) is disposed in the mother liquor collection chamber (223); one end of the second baffle (232) is rotatably disposed on the inner wall of the flushing collection chamber (224), and the other end of the second baffle (232) is disposed on the other side of the partition (222); one end of the first spring (233) is rotatably disposed on the first baffle (231), and the other end of the first spring (233) is rotatably disposed on the partition (222); one end of the second spring (234) is rotatably disposed on the second baffle (232), and the other end of the second spring (234) is rotatably disposed on the inner wall of the liquid inlet (221).

6. The centrifugal mother liquor and rinsing methanol separation and recovery device according to claim 5, characterized in that: The partition (222) is provided with an unlocking structure (5), which includes a trigger block (51), a trigger groove (52), a locking block (53), a locking groove (54), and a locking spring (55). The trigger groove (52) is located on the top of the partition (222) within the mother liquor collection chamber (223). One end of the trigger block (51) is slidably disposed in the trigger groove (52), and the other end of the trigger block (51) is provided with an unlocking ramp (511). The locking spring (55) is sleeved on the trigger block (51), one end of the locking spring (55) is fixedly disposed on the partition plate (222), and the other end of the locking spring (55) is disposed on the trigger block (51); the locking groove (54) is disposed on the top of the partition plate (222) in the flushing collection chamber (224), and one end of the locking block (53) is slidably disposed in the locking groove (54); the trigger groove (52) communicates with the locking groove (54).

7. The centrifugal mother liquor and rinsing methanol separation and recovery device according to claim 1, characterized in that: The mother liquor collection chamber (223) is equipped with a float (6).

8. The centrifugal mother liquor and rinsing methanol separation and recovery device according to claim 3, characterized in that: The mother liquor collection chamber (223) is connected to the mother liquor tank (7); the rinsing collection chamber (224) is connected to the washing liquid tank (8).

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