A separation device for producing phthalimidine hexaperoxoic acid

Abstract

The utility model is suitable for phthalimide hexaperoxy acid production technical field, provides a kind of separating device for phthalimide hexaperoxy acid production, including support assembly, the support assembly includes base, support frame and installation platform, the base is equipped with feeding assembly and material receiving component, the installation platform is equipped with centrifugal separation component and driving assembly, the centrifugal separation component includes cover, drum and screw pusher and with the feed pipe of drum connection, the drum is connected with discharge pipe on the side close to feed pipe, the drum is connected with liquid discharge pipe on the side away from feed pipe.This device solves the problem that frequent replacement of filter screen will affect the normal progress of reaction in PAP solid production separation process, achieves the effect of improving PAP production efficiency by the rotation of drum and screw pusher without filter screen to separate reaction liquid and PAP solid, ensures the continuous production of PAP solid.

Description

Technical Field

[0001] This utility model relates to the field of phthalimide peroxy acid production technology, and more specifically, it relates to a separation device for the production of phthalimide peroxy acid. Background Technology

[0002] Phthalimide peroxyacid (PAP) is an important low-temperature bleaching surfactant. The key to its production process lies in the efficient and safe introduction of peroxyacid groups. The synthesis of phthalimide peroxyacid (PAP) typically uses phthalimide hexanoic acid as a precursor, generating the target product through an oxidation reaction. After the reaction is complete, ice water at 0–2°C is poured in, immediately precipitating a white PAP solid. Further solid-liquid separation is performed between the resulting white PAP solid and the reaction liquid, and finally, the product is dried to complete the PAP production.

[0003] Patent CN223490542U discloses a solid-liquid separation and collection device, including a filter tank, a recovery tank, and a negative pressure flow guiding assembly. The filter tank has a liquid inlet box installed on its top and a sealing plate frame on its surface. A filter screen assembly arranged inside the filter tank is mounted on the sealing plate frame. The recovery tank has a connecting sleeve at its top for connection to the bottom of the filter tank. By setting the liquid inlet box at the top of the filter tank, and cooperating with the sealing plate frame and multiple layers of filter screens with different pore sizes, it is possible to uniformly distribute and perform step-by-step solid-liquid separation of liquids containing, for example, paeonol mixtures. This ensures separation accuracy while facilitating quick disassembly and maintenance of the filter screens via the sealing plate frame, improving the applicability and cleaning efficiency of the equipment.

[0004] While the aforementioned device can separate solids and liquids through filtration, filter clogging easily occurs during the solid-liquid separation process. Frequent filter replacements during PAP solid production separation can disrupt the normal reaction process. Therefore, a separation device for phthalimide peroxyacid production is needed that utilizes the device's own centrifugal force to achieve solid-liquid separation of PAP solids and reaction liquids, ensuring continuous PAP solid production and improving PAP production efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a separation device for the production of phthalimide peroxyacid that, through the rotation of a drum and a screw feeder, can separate the reaction liquid and PAP solids by centrifugation without the need for a filter screen, thereby ensuring continuous production of PAP solids and improving PAP production efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A separation device for the production of phthalimide peroxyacid includes a support assembly. The support assembly includes a base, a support frame, and a mounting platform mounted on the support frame. A feeding assembly and a receiving assembly are mounted on the base. A centrifugal separation assembly and a drive assembly are mounted on the mounting platform. The centrifugal separation assembly includes a housing, a rotating drum and a screw feeder rotatably installed inside the housing, and a feed pipe connected to the rotating drum. A slag discharge pipe is connected to the side of the rotating drum near the feed pipe, and a liquid discharge pipe is connected to the side of the rotating drum away from the feed pipe. The drive assembly includes a motor and a rotating shaft connected to the rotating drum.

[0008] The present invention is further configured such that: the centrifugal separation assembly further includes a mounting frame and a support foot disposed at the bottom of the mounting frame, the support foot is mounted on the top of the mounting platform, and the cover is mounted on the mounting frame.

[0009] The present invention is further configured such that: the drum includes a cylindrical part and a conical part that are connected to each other, the end of the cylindrical part is connected to the rotating shaft, the spiral pusher is coaxially arranged with the drum, and the spiral pusher has a discharge port on the side near the feed pipe.

[0010] The present invention is further configured such that: an overflow hole is provided on the side of the cylindrical part near the rotating shaft, and a slag discharge hole is provided on the side of the conical part near the feed pipe; the slag discharge hole is connected to the slag discharge pipe, and the overflow hole is connected to the liquid discharge pipe.

[0011] The present invention is further configured such that: the drive assembly includes a first bearing seat and a second bearing seat; both ends of the centrifugal separation assembly are respectively connected to the first bearing seat and the second bearing seat; the motor is mounted on the top of the mounting platform; a reduction gearbox is connected to one side of the motor; and the rotating shaft is connected to the reduction gearbox.

[0012] The present invention is further configured such that: the feeding assembly includes a feeding pump mounted on the base, the feeding pump is connected to a conveying pipe, and the conveying pipe is connected to the feeding pipe.

[0013] The present invention is further configured such that: the material receiving assembly includes a connecting pipe connected to the liquid discharge pipe and a guide plate disposed at the bottom of the slag discharge pipe, the bottom of the connecting pipe is connected to a liquid storage tank, and the guide plate is inclined and extends to the outside of the support frame.

[0014] The beneficial effects of this utility model are:

[0015] After the mixture of PAP solids and reaction liquid is fed into the drum, the rotation of the drum and the screw conveyor, under the action of centrifugal force, causes the heavier PAP solids to deposit on the drum wall, forming a sludge layer, while the lighter reaction liquid forms an inner liquid ring. This achieves the separation of PAP solids and reaction liquid. The PAP solids are discharged through the sludge discharge pipe, and the reaction liquid is discharged through the liquid discharge pipe. Centrifugal separation of reaction liquid and PAP solids can be achieved without a filter, ensuring continuous production of PAP solids and improving PAP production efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the separation device for the production of phthalimide peroxy acid according to this utility model.

[0018] Figure 2 for Figure 1 The left view shown.

[0019] Figure 3 For along Figure 2 The sectional view shown is taken along the AA cutting direction.

[0020] Figure 4 for Figure 1 The diagram shows the structure of the centrifugal separation component and the drive component.

[0021] Figure 5 for Figure 4 The left view shown.

[0022] Figure 6 For along Figure 5 The sectional view shown is taken along the cutting direction of BB.

[0023] Explanation of reference numerals in the attached drawings: 1. Bracket assembly; 11. Base; 12. Support frame; 13. Mounting platform;

[0024] 2. Centrifugal separation assembly; 21. Mounting frame; 22. Support feet; 23. Cover; 24. Drum; 241. Cylindrical part; 242. Conical part; 243. Slag discharge hole; 244. Overflow hole; 25. Screw feeder; 26. Feed pipe; 27. Feed inlet; 28. Discharge outlet; 29. ​​Slag discharge pipe; 210. Liquid discharge pipe;

[0025] 3. Drive assembly; 31. Motor; 32. Gearbox; 33. First bearing housing; 34. Second bearing housing; 35. First bearing; 36. Second bearing; 37. Shaft;

[0026] 4. Feeding assembly; 41. Feed pump; 42. Conveying pipe; 43. Control valve;

[0027] 5. Receiving assembly; 51. Connecting pipe; 52. Liquid storage tank; 53. Guide plate. Detailed Implementation

[0028] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Please refer to Figure 1-3 A separation device for the production of phthalimide hexaperoxic acid includes a support assembly 1, which comprises a base 11, a support frame 12, and a mounting platform 13 mounted on the support frame 12. The base 11 is horizontally positioned, the support frame 12 is vertically mounted on top of the base 11, and the mounting platform 13 is fixedly connected to the support frame 12. A feeding assembly 4 and a receiving assembly 5 are mounted on the base 11, and a centrifugal separation assembly 2 and a drive assembly 3 are mounted on the mounting platform 13. The feeding assembly 4 is connected to a preceding oxidation reaction device. The mixture of PAP solids and reaction liquid generated by the oxidation reaction is conveyed to the centrifugal separation assembly 2 through the feeding assembly 4. The drive assembly 3 drives the centrifugal separation assembly 2 to separate the PAP solids from the reaction liquid, which are then collected separately by the receiving assembly 5. After the PAP solids are collected, they can be further dried.

[0030] Please refer to Figure 1-6 The drive assembly 3 includes a motor 31 and a rotating shaft 37 connected to the centrifugal separation assembly 2. The motor 31 is mounted on the top of the mounting platform 13, and a reduction gearbox 32 is connected to one side of the motor 31. Specifically, pulleys are mounted on the output shaft of the motor 31 and the input shaft of the reduction gearbox 32, and the two pulleys are connected by a belt. The output shaft of the reduction gearbox 32 is connected to the rotating shaft 37, allowing the motor 31 to drive the rotating shaft 37 to rotate after being reduced in speed by the reduction gearbox 32. The drive assembly 3 also includes a first bearing housing 33 and a second bearing housing 34. The first bearing housing 33 and the second bearing housing 34 are mounted on the top of the mounting platform 13 and connected to the centrifugal separation assembly 2 at both ends, respectively. A first bearing 35 is installed inside the first bearing housing 33, and a second bearing 36 is installed inside the second bearing housing 34.

[0031] Please refer to Figure 1-6The centrifugal separation assembly 2 includes a housing 23, a rotating drum 24 rotatably mounted inside the housing 23, a screw feeder 25, and a feed pipe 26 connected to the rotating drum 24. The centrifugal separation assembly 2 also includes a mounting frame 21 and support feet 22 located at the bottom of the mounting frame 21, with the support feet 22 mounted on top of the mounting platform 13. The housing 23 is a hollow structure, mounted on the mounting frame 21, with its bottom positioned above the mounting platform 13. The screw feeder 25 is coaxially arranged with the rotating drum 24, which is connected to a rotating shaft 37. The rotating shaft 37 is connected to a first bearing 35 inside a first bearing housing 33, and the side of the rotating drum 24 closest to the feed pipe 26 is connected to a second bearing 36 inside a second bearing housing 34, thereby enabling rotation of the rotating drum 24 and the screw feeder 25 relative to the first and second bearing housings 33 and 34. A differential gear is provided at the end of the rotating shaft 37 and connected to the end of the screw feeder 25. During the process of the motor 31 driving the rotating shaft 37 to rotate, it can synchronously drive the rotating drum 24 and the screw feeder 25 to rotate at different speeds.

[0032] Please refer to Figure 1-6 A feed inlet 27 is provided at the end of the feed pipe 26 away from the screw conveyor 25. The feed pipe 26 extends into the interior of the screw conveyor 25, and a discharge outlet 28 is provided on the side of the screw conveyor 25 near the feed pipe 26. The mixture of PAP solid and reaction liquid generated by the oxidation reaction can be transported into the interior of the screw conveyor 25 through the feed pipe 26 and discharged into the interior of the rotating drum 24 through the discharge outlet 28. The rotating drum 24 includes a cylindrical part 241 and a conical part 242 that are interconnected. The end of the cylindrical part 241 is connected to the rotating shaft 37, and a bearing is provided at the connection between the conical part 242 and the end of the screw conveyor 25. An overflow hole 244 is provided on the cylindrical part 241 near the rotating shaft 37, and a slag discharge hole 243 is provided on the conical part 242 near the feed pipe 26. PAP solids separated from the mixture after centrifugation can be discharged through the slag discharge hole 243, and reaction liquid separated from the mixture after centrifugation can be discharged through the overflow hole 244. A slag discharge pipe 29 is connected to the side of the drum 24 near the feed pipe 26, and a liquid discharge pipe 210 is connected to the side of the drum 24 away from the feed pipe 26. The slag discharge hole 243 communicates with the slag discharge pipe 29, and the overflow hole 244 communicates with the liquid discharge pipe 210. PAP solids can be discharged through the slag discharge hole 243 along the slag discharge pipe 29, and reaction liquid can be discharged through the overflow hole 244 along the liquid discharge pipe 210.

[0033] Please refer to Figure 1-3The feeding assembly 4 includes a feeding pump 41 mounted on the base 11. A delivery pipe 42 is connected to the feeding pump 41, and the other end of the feeding pump 41 is connected to the preceding oxidation reaction unit. Operation of the feeding pump 41 pumps the mixture of PAP solid and reaction liquid produced by the oxidation reaction unit into the delivery pipe 42. The delivery pipe 42 is connected to the feed pipe 26, allowing the mixture to be transported through the delivery pipe 42 into the feed pipe 26. A control valve 43 is installed at the connection between the delivery pipe 42 and the feed pipe 26, controlling the flow of the mixture by opening and closing the control valve 43.

[0034] Please refer to Figure 1-3 The receiving assembly 5 includes a connecting pipe 51 connected to the drain pipe 210 and a guide plate 53 located at the bottom of the slag discharge pipe 29. A storage tank 52 is connected to the bottom of the connecting pipe 51 and is mounted on top of the base 11. The reaction liquid discharged from the drain pipe 210 can continue to be transported along the connecting pipe 51 to the storage tank 52 for collection. The guide plate 53 is fixedly connected to the support frame 12 and is inclined, extending outside the support frame 12. Baffles are provided on both sides of the guide plate 53, allowing the PAP solids discharged from the slag discharge pipe 29 to be discharged downwards along the guide plate 53. A collection device can be installed at the guide plate 53 to collect the PAP solids for further drying.

[0035] Specifically, the feed pump 41 can pump the mixture of PAP solid and reaction liquid produced by the oxidation reaction device into the conveying pipe 42. After the mixture is conveyed through the conveying pipe 42 into the feed pipe 26, it continues to be conveyed through the feed pipe 26 into the screw feeder 25, and is discharged into the drum 24 through the discharge port 28.

[0036] Motor 31 drives shaft 37 to rotate, synchronously driving drum 24 and screw conveyor 25 to rotate at different speeds. Drum 24 and screw conveyor 25 rotate at high speed in the same direction with a certain differential speed. The mixture inside screw conveyor 25 is accelerated and enters drum 24. Under the action of centrifugal force, the heavier PAP solids are deposited on the wall of drum 24 to form a sludge layer. Screw conveyor 25 continuously pushes the deposited PAP solids to the conical part 242 on drum 24, and discharges them through sludge discharge hole 243 and sludge discharge pipe 29. The lighter reaction liquid forms an inner liquid ring and continuously overflows from drum 24 through overflow hole 244 on drum 24, and is discharged through drain pipe 210. The reaction liquid discharged from drain pipe 210 continues to be transported to the storage tank 52 for collection along connecting pipe 51, and the PAP solids discharged from sludge discharge pipe 29 are discharged downward along guide plate 53.

[0037] After the mixture of PAP solids and reaction liquid is conveyed into the drum 24, the rotation of the drum 24 and the screw conveyor 25, under the action of centrifugal force, causes the heavier PAP solids to deposit on the wall of the drum 24 to form a sludge layer, while the lighter reaction liquid forms an inner liquid ring, thus achieving the separation of PAP solids and reaction liquid. The PAP solids are discharged through the sludge discharge pipe 29, and the reaction liquid is discharged through the liquid discharge pipe 210. Centrifugal separation of reaction liquid and PAP solids can be achieved without a filter, ensuring continuous production of PAP solids and improving PAP production efficiency.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A separation device for the production of phthalimide hexaperoxy acid, characterized in that: The system includes a support assembly (1), which includes a base (11), a support frame (12), and a mounting platform (13) mounted on the support frame (12). A feeding assembly (4) and a receiving assembly (5) are mounted on the base (11). A centrifugal separation assembly (2) and a drive assembly (3) are mounted on the mounting platform (13). The centrifugal separation assembly (2) includes a housing (23), a rotating drum (24) and a screw feeder (25) rotatably mounted inside the housing (23), and a feeding pipe (26) connected to the rotating drum (24). A slag discharge pipe (29) is connected to the side of the rotating drum (24) near the feeding pipe (26), and a liquid discharge pipe (210) is connected to the side of the rotating drum (24) away from the feeding pipe (26). The drive assembly (3) includes a motor (31) and a rotating shaft (37) connected to the rotating drum (24).

2. The separation device for the production of phthalimide hexaperoxic acid according to claim 1, characterized in that: The centrifugal separation assembly (2) also includes a mounting frame (21) and a support foot (22) disposed at the bottom of the mounting frame (21). The support foot (22) is mounted on the top of the mounting platform (13), and the cover (23) is mounted on the mounting frame (21).

3. The separation device for the production of phthalimide hexaperoxic acid according to claim 2, characterized in that: The drum (24) includes a cylindrical part (241) and a conical part (242) that are connected to each other. The end of the cylindrical part (241) is connected to the rotating shaft (37). The spiral pusher (25) is coaxially arranged with the drum (24). The spiral pusher (25) has a discharge port (28) on the side near the feed pipe (26).

4. The separation device for the production of phthalimide hexaperoxy acid according to claim 3, characterized in that: The cylindrical part (241) has an overflow hole (244) on the side near the rotating shaft (37), and the conical part (242) has a slag discharge hole (243) on the side near the feed pipe (26). The slag discharge hole (243) is connected to the slag discharge pipe (29), and the overflow hole (244) is connected to the liquid discharge pipe (210).

5. The separation device for the production of phthalimide hexaperoxic acid according to claim 1, characterized in that: The drive assembly (3) also includes a first bearing housing (33) and a second bearing housing (34). The centrifugal separation assembly (2) is connected to the first bearing housing (33) and the second bearing housing (34) at both ends respectively. The motor (31) is mounted on the top of the mounting platform (13). A gearbox (32) is connected to one side of the motor (31). The rotating shaft (37) is connected to the gearbox (32).

6. The separation device for the production of phthalimide hexaperoxic acid according to claim 1, characterized in that: The feeding assembly (4) includes a feeding pump (41) mounted on a base (11), and a conveying pipe (42) is connected to the feeding pump (41), which is connected to the feeding pipe (26).

7. A separation device for the production of phthalimide hexaperoxic acid according to claim 1, characterized in that: The receiving assembly (5) includes a connecting pipe (51) connected to the drain pipe (210) and a guide plate (53) set at the bottom of the slag discharge pipe (29). The bottom of the connecting pipe (51) is connected to a storage tank (52). The guide plate (53) is inclined and extends to the outside of the support frame (12).

Images