Continuous purification device for isophthalonitrile

Abstract

The utility model belongs to the technical field of isophthalonitrile production equipment, and particularly relates to a continuous isophthalonitrile purification device which comprises a purification cavity, a top cover is mounted at the top of the purification cavity, a motor is fixedly connected to the top of the top cover, a circular groove is formed in the bottom of the top cover, two sliding grooves are formed in the top cover, and the sliding grooves are communicated with the circular groove. The output end of the motor is fixedly connected with a rotating disc, the rotating disc is located in the circular groove, a linkage groove is formed in the rotating disc and is in a quadrangular star shape, sliding plates are installed in the two sliding grooves, the bottoms of the sliding plates are fixedly connected with linkage columns, and the linkage columns are located in the linkage groove. Under the combined action of the motor, the turntable and the sliding plate, the isophthalonitrile continuous purification device realizes the regular and quantitative feeding of isophthalonitrile, realizes the continuous purification function of isophthalonitrile, realizes the production automation, saves the labor force and improves the production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of isophthalonitrile production equipment, in particular to an isophthalonitrile continuous purification device. Background Art

[0002] Isophthalonitrile is a white needle crystal, slightly soluble in hot water, soluble in hot ethanol, ether, benzene and chloroform. It is used to make plastics, synthetic fibers, pesticides (chlorothalonil) and epoxy resin curing agents. During the production and processing, the raw materials need to be mixed and then the mixture needs to be purified to remove impurities and residues in the mixture.

[0003] After searching, the patent with publication number CN217616452U discloses a continuous purification device for isophthalonitrile, which mainly cooperates with the installation top plate, driving mechanism, bearing mechanism and conveying mechanism, adopts an electro-hydraulic push rod and a sliding method, and takes the installation top plate and the components thereon into the cleaning chamber, and then uses a driving motor as the output hub, and takes the bearing mechanism and the isophthalonitrile therein to rotate in the cleaning chamber, so that the impurities in the isophthalonitrile are peeled off under the action of centrifugal force, effectively removing the impurities mixed in the isophthalonitrile, and improving work efficiency. However, each placement and removal requires manual opening and closing of the box door of the carrier box, which is time-consuming and labor-intensive, and cannot achieve continuous purification operation. Summary of the invention

[0004] The utility model aims to provide a continuous purification device for isophthalonitrile, which realizes the timing and quantitative feeding of isophthalonitrile, and at the same time realizes the continuous purification function of isophthalonitrile, realizes the automation of production, saves labor and improves production efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it includes a purification chamber, a top cover is installed on the top of the purification chamber, a motor is fixedly connected to the top of the top cover, a circular groove is opened at the bottom of the top cover, a slide groove is opened inside the top cover, and there are two slide grooves, both of which are connected to the circular groove, a turntable is fixedly connected to the output end of the motor, the turntable is located inside the circular groove, a linkage groove is opened inside the turntable, the linkage groove is in the shape of a four-pointed star, slides are installed inside the two slide grooves, a linkage column is fixedly connected to the bottom of the slide, and the linkage column is located inside the linkage groove.

[0006] Optionally, the outer wall of the purification chamber is fixedly connected to a U-shaped frame, the inner wall of the U-shaped frame is movably connected to a side cylinder, the outer wall of the top cover is fixedly connected to a connecting plate, the upper end of the outer wall of the purification chamber is fixedly connected to a T-shaped plate, and there are two T-shaped plates, the outer wall of the connecting plate is movably connected to the inner walls of the two T-shaped plates, and the top outer wall of the side cylinder is movably connected to the inner wall of the connecting plate.

[0007] Optionally, a fixing plate is fixedly connected to the inner wall of the purification chamber, the fixing plate divides the purification chamber into an upper chamber and a lower chamber, and the top of the fixing plate is a conical surface.

[0008] Optionally, the inner wall of the upper chamber is fixedly connected with a dissolving heating wire, and there are multiple dissolving heating wires, the bottom of the fixed plate is fixedly connected with a guide tube, the outer wall of the guide tube is fixedly connected with a first solenoid valve, the inner wall of the lower chamber is fixedly connected with a drying heating wire, and there are two drying heating wires, the lower end of the outer wall of the purification chamber is fixedly connected with a drain outlet, and the top of the drain outlet is fixedly connected with a second solenoid valve.

[0009] Optionally, a support foot is fixedly connected to the lower end of the outer wall of the purification chamber, and there are multiple support feet. The inner walls of the multiple support feet are provided with limiting grooves, and the bottoms of the multiple support feet are fixedly connected to a base.

[0010] Optionally, the top of the base is fixedly connected to a lower cylinder, the top of the lower cylinder is fixedly connected to a bottom cover, the outer wall of the bottom cover is fixedly connected to a limiting block, and there are multiple limiting blocks, the limiting block is located inside a limiting groove, a sealing ring is installed inside the connection between the top of the bottom cover and the bottom of the purification chamber, the top of the top cover is fixedly connected to a raw material inlet, the raw material inlet passes through the left slide groove and is connected to the interior of the purification chamber, the top of the top cover is fixedly connected to a solution inlet, the solution inlet passes through the right slide groove and is connected to the interior of the purification chamber, and the outer wall of the purification chamber is fixedly connected to a water supply inlet.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model is fixedly connected with a motor on the top of the top cover. In the initial state, the two slides are respectively located at one end of the two slides away from the center of the purification chamber, blocking the connection between the raw material inlet and the dissolving liquid inlet and the purification chamber, and the linkage column connected to the bottom of the slide is located at the tip of the four-pointed star-shaped linkage groove opened inside the turntable. The isophthalonitrile raw material is added to the raw material inlet, and the dissolving liquid is added to the dissolving liquid inlet. The motor rotates clockwise, and the output end of the motor drives the turntable to rotate clockwise. The linkage columns fixedly connected to the bottom of the two slides are moved from the tip of the linkage groove along the linkage groove to the center of the linkage groove. The motor stops rotating, and the two slides move relative to each other during this process, so that the raw material inlet and the dissolving liquid inlet are connected to the upper chamber again, and the isophthalonitrile and the dissolving liquid enter the purification chamber together, and then the motor rotates clockwise again, and the output end of the motor drives the slide to move along the linkage groove to the sharp corner of the linkage groove again through the linkage column. At this time, the two slides block the connection between the raw material inlet and the dissolving liquid inlet and the upper chamber again, until the last batch of isophthalonitrile raw materials and the dissolving liquid react and enter the lower chamber, and the above operation is repeated to realize the continuous delivery of isophthalonitrile raw materials and the dissolving liquid. The utility model realizes the continuous purification function of isophthalonitrile, realizes the automation of production, saves labor, and improves production efficiency.

[0013] 2. The utility model has a U-shaped frame fixedly connected to the outer wall of the purification chamber. When the purification chamber needs to be cleaned and maintained, the side cylinder moves downward to drive the connecting plate to rotate. When the connecting plate rotates, the top cover opens with the rotation of the connecting plate, which is convenient for cleaning and maintaining the upper part of the purification chamber after the top cover is opened. The lower cylinder can control the up and down movement of the bottom cover, which is convenient for taking out the purified isophthalonitrile and cleaning and maintaining the lower half of the purification chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4It is a three-dimensional structural schematic diagram of the turntable of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the bottom cover of the utility model;

[0020] Figure 6 This is a schematic diagram of the third perspective structure of the utility model;

[0021] In the figure: 1. purification chamber; 2. top cover; 3. motor; 4. circular groove; 5. slide groove; 6. turntable; 7. linkage groove; 8. slide plate; 9. linkage column; 10. U-shaped frame; 11. side cylinder; 12. connecting plate; 13. T-shaped plate; 14. dissolving heating wire; 15. fixing plate; 16. guide tube; 17. first solenoid valve; 18. drying heating wire; 19. drain outlet; 20. second solenoid valve; 21. support foot; 22. limit groove; 23. base; 24. lower cylinder; 25. bottom cover; 26. limit block; 27. sealing ring; 28. raw material inlet; 29. ​​dissolving liquid inlet; 30. water supply inlet. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] Reference Figure 1-6 , a kind of isophthalonitrile continuous purification device provided by the embodiment of the utility model is now described. A kind of isophthalonitrile continuous purification device comprises a purification chamber 1, a top cover 2 is installed on the top of the purification chamber 1, a motor 3 is fixedly connected to the top of the top cover 2, a circular groove 4 is provided at the bottom of the top cover 2, a slide 5 is provided inside the top cover 2, and there are two slides 5, both of which are connected to the circular groove 4, a turntable 6 is fixedly connected to the output end of the motor 3, the turntable 6 is located inside the circular groove 4, a linkage groove 7 is provided inside the turntable 6, and the linkage groove 7 is in the shape of a four-pointed star, a slide plate 8 is installed inside the two slides 5, a linkage column 9 is fixedly connected to the bottom of the slide plate 8, and the linkage column 9 is located inside the linkage groove 7, in the initial state, the two slide plates 8 are respectively located at one end of the two slides 5 away from the center of the top cover 2, blocking the connection between the raw material inlet 28 and the solution inlet 29 and the upper chamber, and the linkage column 9 connected to the bottom of the slide plate 8 is located on the turntable. 6, there is isophthalonitrile raw material in the raw material inlet 28, there is dissolving liquid in the dissolving liquid inlet 29, the motor 3 rotates clockwise, the output end of the motor 3 drives the turntable 6 to rotate clockwise, and the linkage column 9 fixedly connected to the bottom of the two slide plates 8 moves from the sharp corner position of the linkage groove 7 along the linkage groove 7 to the inside of the linkage groove 7, and the motor 3 stops rotating. In this process, the two slide plates 8 move relatively, so that the raw material inlet 28 and the dissolving liquid inlet 29 are connected to the upper cavity again, and the isophthalonitrile and the dissolving liquid enter the upper cavity together, and then the motor 3 rotates clockwise again, and the output end of the motor 3 drives the slide plate 8 to move along the linkage groove 7 to the sharp corner of the linkage groove 7 again through the linkage column 9. At this time, the two slide plates 8 block the connection state between the raw material inlet 28 and the dissolving liquid inlet 29 and the upper cavity again until the isophthalonitrile is completely dissolved.

[0027] In another embodiment of the present invention, please refer to Figure 1 The outer wall of the purification chamber 1 is fixedly connected to a U-shaped frame 10, and the inner wall of the U-shaped frame 10 is movably connected to a side cylinder 11. The outer wall of the top cover 2 is fixedly connected to a connecting plate 12. The upper end of the outer wall of the purification chamber 1 is fixedly connected to a T-shaped plate 13, and there are two T-shaped plates 13. The outer wall of the connecting plate 12 is movably connected to the inner walls of the two T-shaped plates 13, and the top outer wall of the side cylinder 11 is movably connected to the inner wall of the connecting plate 12. When it is necessary to clean and maintain the upper half of the interior of the purification chamber 1, the side cylinder 11 moves downward, and the top of the side cylinder 11 drives the connecting plate 12 to rotate, and the top cover 2 connected to the connecting plate 12 opens accordingly.

[0028] In another embodiment of the present invention, please refer to Figure 2The inner wall of the purification chamber 1 is fixedly connected with a fixing plate 15, and the fixing plate 15 divides the purification chamber 1 into an upper chamber and a lower chamber. The top of the fixing plate 15 is a conical surface. The inner wall of the upper chamber is fixedly connected with a dissolving heating wire 14, and the number of the dissolving heating wires 14 is multiple. The bottom of the fixing plate 15 is fixedly connected with a guide tube 16, and the outer wall of the guide tube 16 is fixedly connected with a first electromagnetic valve 17. After the isophthalonitrile in the upper chamber is completely dissolved, the first electromagnetic valve 17 is opened to allow the isophthalonitrile solution to flow through the guide tube 16. Entering the lower chamber, the inner wall of the lower chamber is fixedly connected with a drying heating wire 18, and the number of the drying heating wires 18 is two. The drying heating wire 18 heats and dries the isophthalonitrile solution into a crystal state. The lower end of the outer wall of the purification chamber 1 is fixedly connected with a drain port 19. The crystalline isophthalonitrile needs to be rinsed with clean water flowing in from the water supply inlet 30 to rinse the impurities on the surface of the crystal. The top of the drain port 19 is fixedly connected with a second solenoid valve 20. The second solenoid valve 20 is opened to allow the clean water containing impurities to flow out.

[0029] In another embodiment of the present invention, please refer to Figure 2 The lower end of the outer wall of the purification chamber 1 is fixedly connected with a support leg 21, and the number of the support legs 21 is multiple, and the inner walls of the multiple support legs 21 are all provided with a limiting groove 22, and the bottoms of the multiple support legs 21 are all fixedly connected with a base 23, and the top of the base 23 is fixedly connected with a lower cylinder 24, and the top of the lower cylinder 24 is fixedly connected with a bottom cover 25, and the outer wall of the bottom cover 25 is fixedly connected with a limiting block 26, and the number of the limiting blocks 26 is multiple, and the limiting blocks 26 are located inside the limiting groove 22. After the crystalline isophthalonitrile removes impurities, the lower cylinder 24 moves downward, and the bottom cover 25 moves downward accordingly, and the multiple bottom covers 25 move downward. The limit blocks 26 connected to the edge of 25 move along the multiple limit grooves 22 respectively to make the downward process of the bottom cover 25 more stable, and then the crystals on the upper end of the bottom cover 25 are taken out, and a sealing ring 27 is installed inside the connection between the top of the bottom cover 25 and the bottom of the purification chamber 1, and the top of the top cover 2 is fixedly connected with a raw material inlet 28, which passes through the left chute 5 and is connected to the interior of the purification chamber 1, and the top of the top cover 2 is fixedly connected with a solution inlet 29, which passes through the right chute 5 and is connected to the interior of the purification chamber 1, and the outer wall of the purification chamber 1 is fixedly connected with a water supply inlet 30.

[0030] Working principle: When the utility model is used, the dissolving heating wire 14 is preheated first. In the initial state, the two slides 8 are respectively located at one end of the two slides 5 away from the center of the top cover 2, blocking the connection between the raw material inlet 28 and the dissolved liquid inlet 29 and the purification chamber 1, and the linkage column 9 connected to the bottom of the slide 8 is located at the tip of the four-pointed star-shaped linkage groove 7 opened inside the turntable 6. The isophthalonitrile raw material is added to the raw material inlet 28, and the dissolved liquid is added to the dissolved liquid inlet 29. The motor 3 rotates clockwise, and the output end of the motor 3 drives the turntable 6 to rotate clockwise. The linkage column 9 fixedly connected at the bottom of the two slides 8 moves from the tip of the linkage groove 7 along the linkage groove 7 to the inside of the linkage groove 7, and the motor 3 stops rotating. In this process, the two slides 8 move relative to each other, so that the raw material inlet 28 and the dissolved liquid inlet 29 are connected to the purification chamber 1 again, and the isophthalonitrile and the dissolved liquid enter the purification chamber 1 together, and then the motor 3 rotates clockwise again. The output end of the motor 3 drives the slide plate 8 to move along the linkage groove 7 to the sharp corner of the linkage groove 7 again through the linkage column 9. At this time, the two slide plates 8 block the connection between the raw material inlet 28 and the dissolving liquid inlet 29 again. After the isophthalonitrile raw material is completely dissolved, the first solenoid valve 17 is opened. After the dissolved isophthalonitrile flows into the lower part of the purification chamber 1 through the guide tube 16, the first solenoid valve 17 is closed, and the motor 3 repeats the above operation again, so that the upper chamber is loaded with the dissolved isophthalonitrile solution again. At this time, the isophthalonitrile solution that flowed into the lower chamber last time has been dried into a crystalline state. The clean water added by the water supply inlet 30 is increased to enter and remove impurities on the surface of the crystal. The second solenoid valve 20 is opened to make the clean water containing impurities flow out, and the lower cylinder 24 moves downward, driving the bottom cover 25 to move downward, and the crystalline isophthalonitrile is taken out from the bottom cover 25. Finally, the lower cylinder 24 returns to its position, and the above operation is repeated to realize the continuous purification of isophthalonitrile.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous purification device for isophthalonitrile, comprising a purification chamber (1), characterized in that: A top cover (2) is installed on the top of the purification chamber (1), and a motor (3) is fixedly connected to the top of the top cover (2). A circular groove (4) is provided at the bottom of the top cover (2), and a slide groove (5) is provided inside the top cover (2), and there are two slide grooves (5), and the two slide grooves (5) are both connected to the circular groove (4). A turntable (6) is fixedly connected to the output end of the motor (3), and the turntable (6) is located inside the circular groove (4). A linkage groove (7) is provided inside the turntable (6), and the linkage groove (7) is in the shape of a four-pointed star. Slide plates (8) are installed inside the two slide grooves (5), and a linkage column (9) is fixedly connected to the bottom of the slide plate (8), and the linkage column (9) is located inside the linkage groove (7).

2. A continuous purification device for isophthalonitrile according to claim 1, characterized in that: The outer wall of the purification chamber (1) is fixedly connected to a U-shaped frame (10), the inner wall of the U-shaped frame (10) is movably connected to a side cylinder (11), the outer wall of the top cover (2) is fixedly connected to a connecting plate (12), the upper end of the outer wall of the purification chamber (1) is fixedly connected to a T-shaped plate (13), and there are two T-shaped plates (13), the outer wall of the connecting plate (12) is movably connected to the inner walls of the two T-shaped plates (13), and the top outer wall of the side cylinder (11) is movably connected to the inner wall of the connecting plate (12).

3. A continuous purification device for isophthalonitrile according to claim 1, characterized in that: A fixing plate (15) is fixedly connected to the inner wall of the purification chamber (1), and the fixing plate (15) divides the purification chamber (1) into an upper chamber and a lower chamber. The top of the fixing plate (15) is a conical surface.

4. A continuous purification device for isophthalonitrile according to claim 3, characterized in that: The inner wall of the upper chamber is fixedly connected with a dissolving heating wire (14), and the number of the dissolving heating wires (14) is multiple; the bottom of the fixed plate (15) is fixedly connected with a guide tube (16), and the outer wall of the guide tube (16) is fixedly connected with a first solenoid valve (17); the inner wall of the lower chamber is fixedly connected with a drying heating wire (18), and the number of the drying heating wires (18) is two; the lower end of the outer wall of the purification chamber (1) is fixedly connected with a drain outlet (19), and the top of the drain outlet (19) is fixedly connected with a second solenoid valve (20).

5. A continuous purification device for isophthalonitrile according to claim 3, characterized in that: A support foot (21) is fixedly connected to the lower end of the outer wall of the purification chamber (1), and there are multiple support feet (21). The inner walls of the multiple support feet (21) are provided with limiting grooves (22), and the bottoms of the multiple support feet (21) are fixedly connected to a base (23).

6. A continuous purification device for isophthalonitrile according to claim 5, characterized in that: The top of the base (23) is fixedly connected to a lower cylinder (24), the top of the lower cylinder (24) is fixedly connected to a bottom cover (25), the outer wall of the bottom cover (25) is fixedly connected to a limit block (26), and there are multiple limit blocks (26), the limit block (26) is located inside the limit groove (22), a sealing ring (27) is installed inside the connection between the top of the bottom cover (25) and the bottom of the purification chamber (1), the top of the top cover (2) is fixedly connected to a raw material inlet (28), the raw material inlet (28) passes through the left side of the slide groove (5) and is connected to the inside of the purification chamber (1), the top of the top cover (2) is fixedly connected to a solution inlet (29), the solution inlet (29) passes through the right side of the slide groove (5) and is connected to the inside of the purification chamber (1), and the outer wall of the purification chamber (1) is fixedly connected to a water supply inlet (30).

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