Continuous separation equipment for ammoximation reaction liquid

Abstract

The invention provides continuous separation equipment for ammoximation reaction liquid, and relates to the technical field of ammoximation separation, the continuous separation equipment comprises an extraction tank and a liquid inlet pipe, the extraction tank is provided with a heavy phase discharge pipe and an organic phase discharge pipe, in actual operation, the ammoximation reaction liquid enters the device through the liquid inlet pipe, and phase separation is performed in the extraction tank; a cover body is installed on the extraction tank through a flange, a connecting pipe is installed on the cover body, a treatment chamber is fixedly installed between the connecting pipe and the liquid inlet pipe, alignment openings matched with the connecting pipe and the liquid inlet pipe are formed in the upper side and the lower side of the treatment chamber respectively, and a filtering mechanism is arranged in the treatment chamber. Continuous filtration and online maintenance of reaction liquid are realized, catalyst particle blockage is effectively prevented, and the separation efficiency is improved; the modular filter plate structure and the sliding baffle design facilitate rapid replacement and cleaning, reduce downtime, improve production continuity and equipment maintainability, and are suitable for high impurity load working conditions.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of ammoximation separation, more specifically, relates to a kind of continuous separation equipment for ammoximation reaction liquid. BACKGROUND

[0002] Ammoximation reaction is a very important reaction process in modern chemical industry, widely used in the synthesis of a variety of high value-added chemicals, among which the most representative application is the reaction of cyclohexanone with ammonia and hydrogen peroxide under the action of catalyst to generate cyclohexanone oxime, and cyclohexanone oxime as a key intermediate, can be prepared by subsequent rearrangement reaction to get caprolactam, which is the core monomer of nylon-6 (polyamide 6), with the continuous growth of nylon materials in the field of textile, engineering plastics, etc., higher requirements for efficient, clean production process of caprolactam and its upstream cyclohexanone oxime are put forward.

[0003] The patent with the current announcement number CN213611279U discloses an oximation reaction catalyst separation and recovery device, which comprises a separation tank, a discharge cylinder and a clear liquid tank, a clear liquid pipeline is inserted on one side of the outer wall of the separation tank, a plurality of branch filters are connected on one side of the outer wall of the clear liquid pipeline through a connecting pipe, filter cloth is arranged outside the branch filters, one end of the clear liquid pipeline away from the separation tank is threadedly connected on one side of the outer wall of the clear liquid tank, a back flushing pipeline is threadedly connected on one side of the outer wall of the clear liquid pipeline, a back flushing valve is threadedly connected on one side of the outer wall of the back flushing pipeline, a discharge valve is threadedly connected on the bottom outer wall of the separation tank, and one end of the discharge soft connection away from the discharge valve is threadedly connected on one side of the outer wall of the discharge cylinder.

[0004] However, the above-mentioned device has the following problems when in use: during the operation of the device, the surface of the filter cloth needs to be dried frequently, and then the solid particles (such as catalyst) attached to the surface of the filter cloth are removed by back flushing gas, however, this cleaning and regeneration process takes a long time, especially in the drying and back flushing links, a long time is needed to ensure that the filter cake is completely detached and the filter cloth restores the permeability, which leads to a long non-productive downtime of the equipment, reduces the overall operation efficiency, at the same time, frequent shutdown operation is not conducive to realizing continuous production, increases the frequency of manual intervention and maintenance cost, and affects the automation level of the device and the economy of industrial application. SUMMARY

[0005] In order to solve the above technical problems, the present application provides a kind of continuous separation equipment for ammoximation reaction liquid to solve the above problems.

[0006] A kind of continuous separation equipment for ammoximation reaction liquid, including extraction tank and liquid inlet pipe, the heavy phase discharge pipe and organic phase discharge pipe are installed on the extraction tank, flange is installed on the extraction tank with cover, connecting pipe is installed on the cover, processing chamber is fixedly installed between connecting pipe and liquid inlet pipe, the upper and lower sides of the processing chamber are respectively provided with alignment port adapted to connecting pipe and liquid inlet pipe, and filter mechanism is arranged in the processing chamber. The filter mechanism includes a servo motor, the servo motor is installed on the processing chamber, the shaft output end of the servo motor is fixedly installed with a connecting shaft, the connecting shaft penetrates the processing chamber and is fixedly installed with a rotating plate, the rotating plate is installed with a plurality of arc-shaped frames at equal intervals, and the arc-shaped frames are embedded with filter plates on the side away from the servo motor, each arc-shaped frame can be individually matched with the liquid inlet pipe, the center of the connecting pipe and the center of the liquid inlet pipe are on the same straight line, and the arc-shaped frames are jointly spliced to form a complete ring, the orthographic projection of the liquid inlet pipe is always inside the ring, the rotating plate is fixedly installed with a mounting ring, each arc-shaped frame is fixedly installed with two mounting blocks on the side facing the mounting ring, the mounting ring is provided with a circular groove adapted to the mounting blocks at the corresponding position, the processing chamber is slidably installed with a sliding baffle, the sliding baffle is fixedly installed with a handle, and the movement of the sliding baffle can make the arc-shaped frame at the position completely exposed, the rotating plate is fixedly installed with four connecting blocks at equal intervals, the connecting blocks are fixedly installed with a support ring on the side away from the rotating plate, and the rotating plate and the support ring are provided with a hollow groove adapted to the filter plate at equal intervals.

[0007] Preferably, the upper end of the liquid inlet pipe is fixedly connected with a conveying type pre-filtering structure. The conveying type pre-filtering structure includes a pre-filtering device, the pre-filtering device is fixedly connected to the upper end of the liquid inlet pipe, the pre-filtering device is provided with a filtering cavity inside, the pre-filtering device is fixedly installed with a cover plate on the upper end, the cover plate is hingedly connected with a hinged door inside, the cover plate is fixedly connected with a conveying pipe on the upper end, the side wall of the filtering cavity is provided with a first installation groove set, the first installation groove set is rotatably installed with a rotating roller through a sealing waterproof bearing between each two, the side wall of one of the rotating rollers is fixedly installed with a motor symmetrically, the motor is fixedly installed on the side wall of the pre-filtering device, and the output shaft of the motor is fixedly installed with the rotating roller through a shaft coupling, and the rotating rollers are provided with a filter screen type conveying belt through a belt wheel.

[0008] Preferably, the conveying type pre-filtering structure is provided with a synchronous cleaning and vibration integrated structure. The synchronous cleaning and vibration integrated structure comprises an extension shaft, which is symmetrically fixed on one of the rotating roller sidewalls, is located outside the pre-filtering device, and has a first gear fixed on the circumferential surface; a second groove set is symmetrically arranged inside the filtering cavity and located on one side of the extension shaft; a first rotating shaft is rotatably arranged between the second groove set through a sealing bearing; a second gear is symmetrically fixed on the circumferential surface of the first rotating shaft and is meshed with the first gear; a cleaning roller brush is fixed on the circumferential surface of the first rotating shaft and is located inside the filtering cavity and matched with the filter screen conveying belt; a guide scraper is fixed inside the filtering cavity and located at the end of the filter screen conveying belt; a storage box is fixedly connected to the lower end of the pre-filtering device and communicated with the filtering cavity; a side rubber plate is fixed on the sidewall of the storage box; a filter screen groove is arranged at the bottom of the storage box and fixedly connected with a corrugated pipe at the lower end; the corrugated pipe is fixedly connected with a liquid inlet pipe; a U-shaped frame is fixedly arranged at the lower end of the pre-filtering device; a second rotating shaft is rotatably arranged inside the U-shaped frame; a third gear is symmetrically fixed on the circumferential surface of the second rotating shaft and located outside the U-shaped frame and meshed with the first gear; and a convex point roller is fixed on the circumferential surface of the second rotating shaft and located between the third gears and matched with the side rubber plate.

[0009] Compared with the prior art, the present application has the following advantages: In the present application, the rotating plate and the arc-shaped frame group are driven to rotate by the servo motor, so that multiple filter plates are rotated to receive liquid, which can make different parts of the filter plate on the same arc-shaped frame be directly below the liquid inlet, avoid the single area from being blocked due to long-term use, and make the filter plates on different arc-shaped frames be directly below the liquid inlet pipe, so as to realize the replacement of the working filter plate.

[0010] In the application, when the reaction liquid is transported through the conveying pipe, the motor can be started in advance to ensure that the pre-filtering system enters the stable working state in advance, the rotating roller rotates at a constant speed under the driving of the motor to drive the filter screen conveying belt to continuously operate, the continuous and efficient filtration of the reaction liquid is realized, and the filtration congestion during batch transportation is avoided; the rotating roller rotates synchronously to drive the extension shaft to rotate, the extension shaft drives the first gear to precisely mesh with the second gear for transmission, and then drives the first rotating shaft to stably rotate between the second groups of accommodation grooves, and at the same time, the clockwise rotation of the rotating roller makes the counter-clockwise rotation of the cleaning roller brush through the gear meshing relationship, so that the reverse cleaning force is formed, the peeling efficiency of the impurities intercepted on the filter screen conveying belt is greatly improved, the filter screen aperture is effectively prevented from being blocked, and the stable filtration flux is ensured; through the forced guiding action of the guide scraper and the flow boosting of part of the reaction liquid, the impurities such as oxime crystals are directionally and non-residually put into the storage box, the filtration and cleaning are simultaneously performed, the subsequent manual cleaning frequency is reduced, the cleaning intensity of the filtering mechanism can be avoided, and the double cleaning can greatly improve the interception efficiency.

[0011] In the application, the rotating roller rotates under the driving action to drive the filter screen conveying belt to continuously operate to realize the continuous filtration of the reaction liquid, the rotating roller synchronously drives the extension shaft to rotate, the extension shaft drives the first gear to rotate, the first gear meshes with the second gear for transmission, and then drives the first rotating shaft to stably rotate between the second groups of accommodation grooves, the cleaning roller brush synchronously rotates with the first rotating shaft and is precisely adapted to the filter screen conveying belt, the impurities intercepted on the filter screen are quickly peeled off through the reverse cleaning force, the filter screen aperture is effectively prevented from being blocked, and the stable filtration flux is maintained.

[0012] In the application, through the forced guiding action of the guide scraper and the flow assisting of part of the reaction liquid, the impurities such as oxime crystals are directionally and non-residually put into the storage box, the filtration and cleaning are simultaneously performed, the secondary pollution of the impurities is avoided, the reaction liquid after the preliminary filtration of the filter screen conveying belt is subjected to secondary fine filtration through the filter screen groove, the cleanliness of the reaction liquid is further improved, then enters the corrugated pipe, is stably transported to the liquid inlet pipe by the corrugated pipe, and the integrated process of the filtration of the reaction liquid, the cleaning of the impurities, the directional collection and the clean conveying is completed, the overall processing efficiency and the purity of the reaction liquid are greatly improved, and stable guarantee is provided for the subsequent process.

[0013] In the application, through the meshing transmission of the first gear and the third gear, the second rotating shaft is driven to rotate between the U-shaped frames, the second rotating shaft drives the convex point roller to synchronously rotate, the convex points on the convex point roller high-frequency impact the side rubber plate, and the vibration is uniformly transmitted to the inside of the storage box through the side rubber plate to avoid the adhesion and caking of the impurities on the wall of the box. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic diagram of the application; Figure 2 It is a three-dimensional structure schematic diagram of the application; Figure 3It is a three-dimensional structure schematic diagram of the filtering mechanism of the present application; Figure 4 It is a partial combined structure schematic diagram of the filtering mechanism of the present application; Figure 5 It is a combined structure schematic diagram of the mounting ring of the present application; Figure 6 It is a combined structure schematic diagram of the arc-shaped frame of the present application; Figure 7 It is a combined structure schematic diagram of the pre-filtering device of the present application; Figure 6 It is an enlarged view of structure at A in the pre-filtering device of the present application; Figure 8 It is a combined structure schematic diagram of the pre-filtering device of the present application; Figure 9 It is a combined structure schematic diagram of the filter screen type conveying belt of the present application; Figure 10 It is a sectional view of the pre-filtering device of the present application.

[0015] In the figure, the corresponding relationship between the component names and the figure numbers is as follows: 1, extraction tank; 2, heavy phase discharge pipe; 3, organic phase discharge pipe; 4, flange; 5, cover body; 6, connecting pipe; 7, liquid inlet pipe; 8, treatment chamber; 9, servo motor; 10, alignment port; 11, sliding baffle; 12, handle; 13, connecting shaft; 14, rotating plate; 15, connecting block; 16, supporting ring; 17, mounting ring; 18, arc-shaped frame; 19, mounting block; 20, circular groove; 21, filter plate; 22, pre-filtering device; 23, filtering cavity; 24, cover plate; 25, hinged bin door; 26, conveying pipe; 27, first arrangement groove set; 28, rotating roller; 29, filter screen type conveying belt; 30, motor; 31, extension shaft; 32, first gear; 33, second arrangement groove set; 34, first rotating shaft; 35, second gear; 36, cleaning roller brush; 37, guide scraper; 38, material storage box; 39, side rubber plate; 40, filter screen groove; 41, corrugated pipe; 42, U-shaped frame; 43, second rotating shaft; 44, third gear; 45, convex point roller. DETAILED DESCRIPTION

[0016] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0017] Please refer to Figure 1 - Figure 10The application provides a continuous separation device for an ammoximation reaction liquid, which comprises an extraction tank 1 and a liquid inlet pipe 7, the extraction tank 1 is provided with a heavy phase discharge pipe 2 and an organic phase discharge pipe 3, in actual operation, the ammoximation reaction liquid enters the device through the liquid inlet pipe 7, and phase separation is carried out in the extraction tank 1: the heavy phase (such as the aqueous phase) is discharged through the heavy phase discharge pipe 2, and the organic phase (such as the organic solvent containing the product) is collected and treated through the organic phase discharge pipe 3, since this part is prior art, details are not repeated here. The extraction tank 1 is provided with a cover 5 through a flange 4, the cover 5 is provided with a connecting pipe 6, the connecting pipe 6 and the liquid inlet pipe 7 are fixedly provided with a treatment chamber 8, the upper and lower sides of the treatment chamber 8 are respectively provided with alignment openings 10 matched with the connecting pipe 6 and the liquid inlet pipe 7, and the treatment chamber 8 is internally provided with a filtering mechanism. The treatment chamber 8 serves as a filtering pretreatment unit, is accurately connected with the connecting pipe 6 and the liquid inlet pipe 7 through the upper and lower alignment openings 10, and ensures that the reaction liquid flows into the extraction tank 1 through the filtering mechanism after flowing into the liquid inlet pipe 7, so that the structure effectively prevents solid structures such as unfiltered impurities and catalyst particles from entering the extraction tank 1, protects the subsequent separation process, and prolongs the service life of the device. The flange 4 is connected so that the cover 5 is easy to disassemble, and daily maintenance or cleaning is facilitated.

[0018] As shown in Figure 5 , Figure 6 , the filtering mechanism comprises a servo motor 9, the servo motor 9 is installed on the treatment chamber 8, the shaft output end of the servo motor 9 is fixedly provided with a connecting shaft 13, the connecting shaft 13 penetrates the treatment chamber 8 and is fixedly provided with a rotating plate 14, the rotating plate 14 is circumferentially and equidistantly provided with arc-shaped frames 18, and the arc-shaped frames 18 are embeddedly provided with filter plates 21 on the side away from the servo motor 9, and each arc-shaped frame 18 can be individually matched with the liquid inlet pipe 7. The servo motor 9 drives the connecting shaft 13 and the rotating plate 14 to rotate, periodically moves the arc-shaped frames 18 and the filter plates 21 thereon, rotates the rotating plate 14, so that different parts of the filter plates 21 on the same arc-shaped frame 18 are located directly below the liquid inlet pipe 7, avoids blockage of a single area due to long-term use, and also enables the filter plates 21 on different arc-shaped frames 18 to be located directly below the liquid inlet pipe 7, realizes non-stop maintenance, greatly reduces downtime, improves production continuity, is suitable for reaction liquids with high impurity load, and can significantly improve filtering efficiency and separation effect.

[0019] As shown in Figure 6 , the center of the connecting pipe 6 and the center of the liquid inlet pipe 7 are on the same straight line, the arc-shaped frames 18 are jointly connected to form a complete ring, and the forward projection of the liquid inlet pipe 7 is always inside the ring. This coaxial design ensures that the liquid flow of the liquid inlet pipe 7 is always aligned with the annular area of the filter plate 21, avoiding liquid bypass or leakage, and ensuring that all reaction liquid must pass through the filter; It is worth noting that the contact part of the adjacent arc-shaped frame 18 needs to be sealed correspondingly to avoid accidental leakage of liquid through the gap; As shown in Figure 7 , the rotating plate 14 is fixedly installed with a mounting ring 17, and each arc-shaped frame 18 is fixedly installed with two mounting blocks 19 on the side facing the mounting ring 17. The mounting ring 17 is provided with a circular groove 20 adapted to the mounting block 19 at the corresponding position. The cooperation of the mounting ring 17 and the mounting block 19 enables the arc-shaped frame 18 to be quickly installed or disassembled. When the filter plate 21 needs to be replaced or cleaned, the operator only needs to vertically take out the arc-shaped frame 18 from the circular groove 20 without disassembling the entire rotating plate 14, which simplifies the maintenance process, improves the maintainability of the equipment through modular design, reduces tool usage and downtime, and is suitable for chemical environments that require frequent maintenance.

[0020] As shown in Figure 3 , Figure 4 , a sliding baffle 11 is slidably installed on the treatment chamber 8, and the sliding baffle 11 is fixedly installed with a handle 12. The movement of the sliding baffle 11 can completely expose the arc-shaped frame 18 at that position; The sliding baffle 11 can be easily slid by the handle 12. When a certain arc-shaped frame 18 needs to be maintained, the area can be exposed by operating the sliding baffle 11, which facilitates direct operation of the filter plate 21 or the arc-shaped frame 18. This design provides a quick access channel, avoiding the trouble of disassembling the entire treatment chamber 8, ensuring that local cleaning or replacement can be performed without stopping the machine, and improving operation safety and efficiency; It is worth noting that the sliding baffle 11 and the treatment chamber 8 can be provided with corresponding locks to prevent malicious operation without permission.

[0021] As shown in Figure 5 , Figure 6 , four connecting blocks 15 are fixedly installed on the rotating plate 14 at equal intervals in the axial direction, and a support ring 16 is fixedly installed on the side of the connecting block 15 away from the rotating plate 14. The rotating plate 14 and the support ring 16 are equally provided with an empty slot adapted to the filter plate 21 between them; The connecting block 15 and the support ring 16 jointly enhance the structural stability of the rotating plate 14, ensuring that the filter plate 21 will not shift or deform during rotation. The empty slot design allows the filtered liquid to pass smoothly into the subsequent processing stage. The support ring 16 also plays a role in dispersing the liquid flow pressure, reducing the impact on the filter plate 21, prolonging the service life of the filter plate 21, and maintaining the long-term stability of the filtering performance.

[0022] As shown in Figure 8 - Figure 10As shown, the upper end of the liquid inlet pipe 7 is fixedly connected with a conveying type pre-filtering structure, which comprises a pre-filtering device 22 fixedly connected with the upper end of the liquid inlet pipe 7. The pre-filtering device 22 is internally provided with a filtering cavity 23. The upper end of the pre-filtering device 22 is fixedly installed with a cover plate 24. The cover plate 24 is internally hingedly connected with a hinged door 25. The upper end of the cover plate 24 is fixedly connected with a conveying pipe 26. The side wall of the filtering cavity 23 is transversely provided with a first set of arranging grooves 27. The first set of arranging grooves 27 are rotatably installed with rotating rollers 28 through sealed waterproof bearings. The side wall of one of the rotating rollers 28 is symmetrically fixedly installed with a motor 30. The motor 30 is fixedly installed on the side wall of the pre-filtering device 22. The output shaft of the motor 30 is fixedly installed with the rotating roller 28 through a shaft coupling. The rotating rollers 28 are provided with a filter screen type conveying belt 29 through belt pulleys. When the reaction liquid is conveyed through the conveying pipe 26, the motor 30 can be started in advance to ensure that the pre-filtering system enters a stable working state in advance. The rotating rollers 28 uniformly rotate under the driving of the motor 30 to drive the filter screen type conveying belt 29 to continuously operate, thereby realizing continuous and efficient filtering of the reaction liquid and avoiding filtering congestion during batch conveying. The rotating of the rotating rollers 28 synchronously drives the extension shaft 31 to rotate. The extension shaft 31 drives the first gear 32 and the second gear 35 to precisely mesh and transmit, thereby driving the first rotating shaft 34 to stably rotate between the second set of arranging grooves 33. At the same time, the clockwise rotation of the rotating rollers 28 makes the cleaning roller brush 36 counterclockwise rotate through the gear meshing relationship, thereby forming a reverse cleaning force. The peeling efficiency of the impurities trapped on the filter screen type conveying belt 29 is greatly improved. The filter screen aperture is effectively prevented from being blocked to ensure stable filtering flux. Through the forced guiding action of the guide scraper 37 and the flow boost of part of the reaction liquid, the oxime crystals and other impurities are directionally and residuelessly entered into the storage box 38, thereby realizing synchronous filtering and cleaning, and reducing the subsequent manual cleaning frequency.

[0023] As shown in Figure 8 Figure 10 As shown, the conveying type pre-filtering structure is provided with a synchronous cleaning and vibration integrated structure. The synchronous cleaning and vibration integrated structure comprises an extension shaft 31 fixedly installed on the side wall of one of the rotating rollers 28. The extension shaft 31 is located outside the pre-filtering device 22. The circumferential surface of the extension shaft 31 is fixedly installed with a first gear 32. The filtering cavity 23 is internally symmetrically provided with a second set of arranging grooves 33. The second set of arranging grooves 33 is located on one side of the extension shaft 31. The second set of arranging grooves 33 is rotatably installed with a first rotating shaft 34 through a sealed bearing. The circumferential surface of the first rotating shaft 34 is symmetrically fixedly installed with a second gear 35. The second gear 35 is meshingly installed with the first gear 32. The circumferential surface of the first rotating shaft 34 is fixedly installed with a cleaning roller brush 36. The cleaning roller brush 36 is located inside the filtering cavity 23. The cleaning roller brush 36 is adapted to the filter screen type conveying belt 29. ​The rotating roller 28 rotates under the driving action, and the driving filter screen conveying belt 29 continuously operates to realize continuous filtration of the reaction liquid. The rotation synchronously drives the extension shaft 31 to rotate, the extension shaft 31 drives the first gear 32 to rotate, the first gear 32 is meshed and driven with the second gear 35, and then the first rotating shaft 34 is stably rotated between the second arrangement groove groups 33. The cleaning roller brush 36 is synchronously rotated with the first rotating shaft 34 and accurately matched with the filter screen conveying belt 29. Through the reverse cleaning force, the impurities trapped on the filter screen are quickly stripped, the filter screen aperture is effectively prevented from being blocked, and the stable filtration flux is maintained.

[0024] As shown in Figure 8 - Figure 10 The filter chamber 23 is internally fixedly installed with a guide scraper 37. The guide scraper 37 is located at one side end of the filter screen conveying belt 29. The pre-filtering device 22 is fixedly and communicatively connected with a storage box 38 at the lower end. The storage box 38 is in communication with the filter chamber 23. Through the forced guiding action of the guide scraper 37 on the flow assistance of part of the reaction liquid, the oxime crystals and other impurities are directionally and residue-free entered into the storage box 38. The filtration and cleaning are simultaneously performed, and the secondary pollution of the impurities is avoided.

[0025] As shown in Figure 8 - Figure 10 The storage box 38 is fixedly installed with a side rubber plate 39 on the side wall. The storage box 38 is provided with a filter screen groove 40 at the bottom. The filter screen groove 40 is fixedly and communicatively connected with a bellows 41 at the lower end. The bellows 41 is fixedly and communicatively connected with the liquid inlet pipe 7. The reaction liquid filtered by the filter screen conveying belt 29 is secondarily and finely filtered through the filter screen groove 40, so as to further improve the cleanliness of the reaction liquid. Then, the reaction liquid is stably conveyed to the liquid inlet pipe 7 through the bellows 41, so as to complete the integrated process of reaction liquid filtration, impurity cleaning, directional collection and clean conveying. The overall processing efficiency and the purity of the reaction liquid are greatly improved, and stable guarantee is provided for the subsequent process.

[0026] As shown in Figure 8 - Figure 10 The pre-filtering device 22 is fixedly installed with a U-shaped frame 42 at the lower end. The U-shaped frame 42 is rotatably installed with a second rotating shaft 43 at the inner side. The third gear 44 is fixedly and symmetrically installed on the circumferential surface of the second rotating shaft 43. The third gear 44 is located at the outer side of the U-shaped frame 42 and is meshed and installed with the first gear 32. The convex point roller 45 is fixedly installed on the circumferential surface of the second rotating shaft 43. The convex point roller 45 is located between the third gears 44 and is matched with the side rubber plate 39. Through the meshing and driving of the first gear 32 and the third gear 44, the second rotating shaft 43 is driven to rotate between the U-shaped frames 42. The second rotating shaft 43 drives the convex point roller 45 to synchronously rotate. The convex points on the convex point roller 45 high-frequency impact the side rubber plate 39. The vibration is uniformly transmitted to the inside of the storage box 38 through the side rubber plate 39, so as to avoid the impurities from adhering and caking on the wall of the box.

[0027] Embodiments of the application are presented for the purpose of illustration and description and are not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. Embodiments are chosen and described in order to provide the best illustration of the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A continuous separation device for an ammonium oxime reaction solution, comprising an extraction tank (1) and an inlet pipe (7), wherein the extraction tank (1) is equipped with a heavy phase discharge pipe (2) and an organic phase discharge pipe (3), and a cover (5) is installed on the extraction tank (1) via a flange (4), characterized in that: A connecting pipe (6) is installed on the cover (5), and a processing chamber (8) is fixedly installed between the connecting pipe (6) and the liquid inlet pipe (7). Alignment ports (10) adapted to the connecting pipe (6) and the liquid inlet pipe (7) are respectively opened on the upper and lower sides of the processing chamber (8). A filtration mechanism is provided inside the processing chamber (8). The upper end of the liquid inlet pipe (7) is fixedly connected to a conveyor-type pre-filtration structure, and the conveyor-type pre-filtration structure is provided with a synchronous cleaning and vibration integrated structure.

2. The continuous separation device for ammonium oxime reaction solution according to claim 1, characterized in that, The filtration mechanism includes a servo motor (9), which is mounted on the processing chamber (8). A connecting shaft (13) is fixedly mounted on the output end of the shaft of the servo motor (9). The connecting shaft (13) passes through the processing chamber (8) and is fixedly mounted on a rotating plate (14). Arc-shaped frames (18) are equidistantly mounted on the rotating plate (14) in the circumferential direction. A plurality of arc-shaped frames (18) are embedded with filter plates (21) on the side away from the servo motor (9). Each arc-shaped frame (18) can be individually matched with the liquid inlet pipe (7).

3. The continuous separation device for ammonium oxime reaction solution according to claim 2, characterized in that, The center of the connecting pipe (6) and the center of the liquid inlet pipe (7) are on the same straight line, and multiple arc-shaped frames (18) are spliced ​​together to form a complete ring. The forward projection of the liquid inlet pipe (7) is always inside the ring.

4. A continuous separation device for an ammonium oxime reaction solution according to claim 2, characterized in that, An installation ring (17) is fixedly installed on the rotating plate (14). Two installation blocks (19) are fixedly installed on the side of each arc frame (18) facing the installation ring (17). The installation ring (17) has a circular groove (20) adapted to the installation block (19) at the corresponding position.

5. A continuous separation device for an ammonium oxime reaction solution according to claim 2, characterized in that, A sliding baffle (11) is slidably installed on the processing chamber (8), and a handle (12) is fixedly installed on the sliding baffle (11). The movement of the sliding baffle (11) can make the arc frame (18) in that position fully exposed.

6. A continuous separation device for an ammonium oxime reaction solution according to claim 2, characterized in that, Four connecting blocks (15) are axially fixedly installed at equal intervals on the rotating plate (14). A support ring (16) is fixedly installed on the side of the connecting block (15) away from the rotating plate (14). A slot adapted to the filter plate (21) is opened at equal intervals between the rotating plate (14) and the support ring (16).

7. A continuous separation device for an ammonium oxime reaction solution as described in any one of claims 1-6, characterized in that, The conveyor-type pre-filtration structure includes a pre-filtration device (22), which is fixedly connected to the upper end of the liquid inlet pipe (7). The pre-filtration device (22) has a filter chamber (23) inside. A cover plate (24) is fixedly installed on the upper end of the pre-filtration device (22). A hinged door (25) is hinged inside the cover plate (24). A conveying pipe (26) is fixedly connected to the upper end of the cover plate (24). A first placement groove group (27) is opened through the side wall of the filter chamber (23). Rollers (28) are rotatably installed between each pair of the first placement groove group (27) through sealed waterproof bearings. A motor (30) is symmetrically fixedly installed on the side wall of one of the rollers (28). The motor (30) is fixedly installed on the side wall of the pre-filtration device (22), and the output shaft of the motor (30) is fixedly installed with the roller (28) through a coupling. A filter screen conveyor belt (29) is wound around the rollers (28) through pulleys.

8. The continuous separation device for ammonium oxime reaction solution as described in claim 7, characterized in that, The synchronous cleaning and vibration integrated structure includes an extension shaft (31), which is symmetrically fixed on the side wall of one of the rollers (28). The extension shaft (31) is located outside the pre-filter device (22). A first gear (32) is fixedly installed on the circumferential surface of the extension shaft (31). A second set of mounting slots (33) is symmetrically opened inside the filter chamber (23). The second set of mounting slots (33) is located on one side of the extension shaft (31). A first rotating shaft (34) is rotatably installed between the second set of mounting slots (33) through a sealed bearing.

9. The continuous separation device for ammonium oxime reaction solution as described in claim 8, characterized in that, A second gear (35) is symmetrically fixedly installed on the circumferential surface of the first rotating shaft (34). The second gear (35) meshes with the first gear (32). A cleaning roller brush (36) is fixedly installed on the circumferential surface of the first rotating shaft (34). The cleaning roller brush (36) is located inside the filter chamber (23). The cleaning roller brush (36) is adapted to the filter screen conveyor belt (29). A guide scraper (37) is fixedly installed inside the filter chamber (23). The guide scraper (37) is located at one end of the filter screen conveyor belt (29). A storage box (38) is fixedly connected to the lower end of the pre-filter device (22). The storage box (38) is connected to the filter chamber (23). A side rubber plate (39) is fixedly installed on the side wall of the storage box (38).

10. The continuous separation device for an ammonium oxime reaction solution as described in claim 9, characterized in that, The bottom of the storage box (38) is provided with a filter screen groove (40). The lower end of the filter screen groove (40) is fixedly connected to a corrugated pipe (41). The corrugated pipe (41) is fixedly connected to the liquid inlet pipe (7). The lower end of the pre-filtration device (22) is fixedly installed with a U-shaped frame (42). The inner side of the U-shaped frame (42) is rotatably installed with a second rotating shaft (43). The circumferential surface of the second rotating shaft (43) is symmetrically fixedly installed with a third gear (44). The third gear (44) is located outside the U-shaped frame (42) and meshes with the first gear (32). The circumferential surface of the second rotating shaft (43) is fixedly installed with a convex roller (45). The convex roller (45) is located between the third gear (44). The convex roller (45) is adapted to the side rubber plate (39).

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