Low-moisture high-purity xylene purification device

Abstract

The utility model relates to the technical field of chemical production equipment, and provides a low-moisture high-purity xylene purification device which comprises a purification box body, supporting plates are fixedly connected to the two sides of the bottom of the purification box body, and a lifting insertion opening is transversely formed in one side plate of the purification box body in a penetrating mode; a lifting sliding groove is longitudinally formed in one side plate of the purification box body, a lifting insertion plate is connected to the interior of the lifting sliding groove in an inserted mode, a fixing frame is fixedly connected to one side of the lifting insertion plate, extending sliding grooves are formed in the two sides of the fixing frame, and the arranged lifting insertion plate is inserted into the lifting sliding groove, so that the lifting sliding groove is formed in the purification box body; and a hydraulic telescopic rod II stretches out and draws back to lift up and down, so that the fixed frame can be lifted up and down so as to stay at a layered position, and the extension frame is pushed to be inserted into the purification box body by starting a conveying mechanism between the extension frame and the fixed frame.

Description

Technical Field

[0001] This utility model relates to the field of chemical production equipment technology, specifically to a low-moisture, high-purity xylene purification device. Background Technology

[0002] High-purity xylene purification refers to the process of removing impurities from xylene through a series of physical and chemical methods to obtain a high-purity xylene product. High-purity xylene has wide applications in chemical, pharmaceutical, and coating industries. Due to its high purity and low impurity content, high-purity xylene is particularly important in fine chemicals and high-end manufacturing.

[0003] A search revealed an existing patent (CN209378465U) that discloses a mixed xylene refining and purification device, comprising: a tank I, which is sealed on all sides, with a feed pipe for conveying the mixed xylene to be produced connected to the tank I; a spiral heat exchange tube, disposed inside the tank I, one end of which is connected to the outlet of an industrial cooling tower via a water supply pipe, and the other end of which is connected to the inlet of the industrial cooling tower via a return water pipe and a water pump; a tank II, which is sealed on all sides and disposed at the lower end of the tank I, with the upper end of a feed pipe connected to the bottom of the tank I and the lower end connected to the upper end of the tank II, and a valve I installed on the feed pipe; an electric heating tube disposed inside the tank II for heating the liquid in the tank II to 110-120°C; an exhaust pipe connected to the top of the tank II; and a discharge pipe connected to the bottom of the tank II, with a valve II installed on the discharge pipe. To improve water evaporation efficiency, the system also includes a main shaft mounted vertically within tank II, spiral blades mounted axially on the main shaft, and a motor mounted on tank II, the motor being driven by the main shaft. The beneficial effects of this invention are: when a certain amount of liquid mixed with xylene and water accumulates in tank I, valve I is opened, and the liquid enters tank II through the feed pipe. Because the density of each component in the mixed xylene is lower than that of water, stratification occurs, with the upper part being the mixed xylene liquid and the lower part being water. The electric heating element is located at the bottom of tank II; therefore, when the liquid is heated to 110-120°C, only the water is heated and turns into gas, while the mixed xylene does not. The gas gradually rises and is discharged through the exhaust pipe. The dehydrated mixed xylene solution achieves a purification effect; after purification, opening valve II allows the mixed xylene solution to be discharged through the discharge pipe.

[0004] However, in the above scheme, since the liquid water is at the bottom, if the high-purity xylene with low water content is purified, a lot of evaporation time is required, which is not conducive to improving work efficiency. In addition, there is always a mixture of the two liquids at the stratification position between the upper and lower layers, making it difficult to extract high purity.

[0005] In view of this, the present invention proposes a low-moisture, high-purity xylene purification device. Utility Model Content

[0006] This invention proposes a low-moisture, high-purity xylene purification device, which solves the problem in related technologies where, because the liquid water is at the bottom, a large amount of evaporation time is required to purify low-moisture, high-purity xylene, which is not conducive to improving work efficiency. Furthermore, the two liquids are always mixed at the stratification point between the upper and lower layers, making it difficult to extract high purity.

[0007] The technical solution of this utility model is as follows: A low-moisture, high-purity xylene purification device includes a purification chamber. Support plates are fixedly connected to both sides of the bottom of the purification chamber. A lifting port is horizontally opened through the interior of one side plate of the purification chamber. A lifting groove is vertically opened inside the interior of the other side plate. A lifting plate is inserted into the interior of the lifting groove. A fixed frame is fixedly connected to one side of the lifting plate. Extension grooves are provided on both sides of the fixed frame, communicating with the interior of the fixed frame. The interior of the fixed frame is inserted into... The device includes an extension frame, a conveying mechanism between the extension frame and the extension chute, and an exhaust mechanism between the side of the extension frame away from the purification chamber and the fixed frame. The extension frame is adapted to be inserted into the purification chamber from one side, with both outer walls of the extension frame sliding against the inner wall of the purification chamber. A heating plate is provided on the side of the extension frame inserted into the purification chamber. A purification collection box is fixedly connected to the upper part of one side of the purification chamber. A material handling mechanism is provided between the purification collection box and the purification chamber. A hydraulic system is fixedly connected to the bottom of the purification collection box. Telescopic rod two, the extension end of which is fixedly connected to a fixed frame, a water tank is fixedly connected to the lower side of one side of the purification box, a material handling mechanism two is provided between the water tank and the purification box, a dehumidification mechanism is provided on the top of the purification box, and sealing gaskets are provided on all four edges of the lifting plate. The lifting plate is inserted into the interior of the lifting slide groove and moves up and down under the extension and retraction of the hydraulic telescopic rod two, thereby realizing the lifting and lowering of the fixed frame, so as to adapt to the position of stopping at the layer. The transmission mechanism between the extension frame and the fixed frame is activated to push... The extended frame is inserted into the purification chamber. At the same time as the extended frame is inserted, the exhaust mechanism is activated to extract the liquid at the stratified position into the interior of the extended frame for collection. After the extended frame is fully inserted into the purification chamber, the upper and lower sides of the extended frame close the upper and lower sides of the purification chamber. The material extraction mechanism 1 and material extraction mechanism 2 on the upper and lower sides extract the different liquids on the upper and lower sides of the extended frame. After extraction is completed, the extended frame is retracted back into the interior of the fixed frame. At this time, a small amount of mixed liquid inside the fixed frame enters the interior of the purification chamber for evaporation and purification, which is highly efficient.

[0008] Preferably, the conveying mechanism includes an extension slide, a motor, a threaded rod, and a slider. Extension slides are provided on both sides of the extension frame. A motor is fixedly connected inside the extension slide. A threaded rod is fixedly connected to the output end of the motor. A slider is slidably connected inside the extension slide. The threaded rod passes through the slider. The extension slide is threadedly connected to the slider.

[0009] Preferably, sliders are fixedly connected to both sides of the extension frame, and the extension frame slides inside the fixed frame. The motor is fixed inside the extension groove on the side away from the purification box. By starting the motor, the threaded rod can rotate to transmit the slider, so that the extension frame slides inside the fixed frame.

[0010] Preferably, the exhaust mechanism includes an exhaust port, an exhaust hose, and an exhaust valve. The exhaust port is fixed to one side of the extension frame, an exhaust hose is fixedly connected to one side of the exhaust port, and an exhaust valve is fixedly connected to the other end of the exhaust hose.

[0011] Preferably, the exhaust hose is a flexible hose, and the exhaust hose connects the exhaust port and the exhaust valve. The exhaust valve can be used to discharge the gas squeezed by the liquid inside the extension frame.

[0012] Preferably, the material handling mechanism includes a shrinkable suction tube, a liquid handling pump, and a hydraulic telescopic rod. The shrinkable suction tube is fixed to one side of the purification collection box, the shrinkable section of the shrinkable suction tube is fixedly connected to the liquid handling pump, one side of the shrinkable suction tube is fixedly connected to the hydraulic telescopic rod, and the output end of the hydraulic telescopic rod is fixedly connected to the liquid handling pump.

[0013] Preferably, the shrinkable suction tube is an extendable telescopic tube structure. The shrinkable suction tube is L-shaped and fixed inside the purification box and the purification collection box. The solution in the upper layer can be drawn into the purification collection box for collection by the set liquid pump. The shrinkable suction tube can be extended to the top of the extension frame for extraction by activating the hydraulic telescopic rod.

[0014] Preferably, the material handling mechanism two includes a drain pipe and a drain valve. The bottom of the purification box is fixedly connected to the drain valve, and the bottom of the drain valve is fixedly connected to the drain pipe. The bottom of the drain pipe is connected to the inside of the water tank. The bottom of the water tank is fixedly connected to the support base. The drain valve can draw the liquid below into the inside of the water tank for collection.

[0015] Preferably, the drain valve is fixed in an L-shape at the bottom of the purification chamber, and the heating plate is away from the drain valve.

[0016] Preferably, the dehumidification mechanism includes a flip cover and a dehumidifier. The flip cover is rotatably connected to one side of the top of the purification chamber. One side of the flip cover is rotatably connected to the purification chamber via a hinge. The dehumidifier is fixedly connected to the bottom of the flip cover. The dehumidifier can evaporate the mixed liquid retained after the extension frame is contracted after the heating plate is activated, which can evaporate a small amount of mixed liquid with high efficiency.

[0017] The beneficial effects of this utility model are as follows:

[0018] In this invention, a lifting plate is inserted into the lifting slide groove and moves up and down under the extension and retraction of the hydraulic telescopic rod, thereby raising and lowering the fixed frame to adapt to the layered position. By activating the conveying mechanism between the extension frame and the fixed frame, the extension frame is pushed into the purification chamber. At the same time as the extension frame is inserted, the exhaust mechanism is activated to extract the liquid at the layered position into the extension frame for collection. After the extension frame is fully inserted into the purification chamber, the upper and lower sides of the extension frame close the upper and lower sides of the purification chamber. The material extraction mechanism 1 and material extraction mechanism 2 on the upper and lower sides extract the different liquids on the upper and lower sides of the extension frame. After extraction, the extension frame is retracted into the fixed frame. At this time, a small amount of mixed liquid inside the fixed frame enters the purification chamber for evaporation and purification, which is highly efficient.

[0019] In this utility model, starting the motor can cause the threaded rod to rotate and the threaded slider to be transmitted, so that the extension frame is located inside the fixed frame and slides in close contact. The exhaust valve can be connected to the exhaust hose to discharge the gas squeezed by the liquid inside the extension frame. The liquid pump can be used to draw the upper layer of solution into the purification collection box for collection through the shrinking suction pipe. The shrinking suction pipe can be extended to the top of the extension frame for extraction by starting the hydraulic telescopic rod.

[0020] In this invention, the drain valve allows the liquid below to be drawn into the water tank for collection, and the dehumidifier allows the mixed liquid remaining after the extension frame is contracted when the heating plate is activated to evaporate, which is highly efficient for evaporating small amounts of mixed liquid. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention from one side view;

[0023] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another side view;

[0024] Figure 3 This is a three-dimensional schematic diagram of the present invention viewed from below;

[0025] Figure 4 This is a side view of the internal structure of this utility model;

[0026] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Purification chamber; 2. Lifting port; 3. Lifting slide; 4. Lifting plate; 5. Sealing gasket; 6. Fixing frame; 7. Extension slide; 8. Motor; 9. Threaded rod; 10. Extension frame; 11. Slider; 12. Heating plate; 13. Exhaust connection port; 14. Support plate; 15. Exhaust hose; 16. Exhaust valve; 17. Purification collection box; 18. Flip cover; 19. Dehumidifier; 20. Shrink suction tube; 21. Liquid pump; 22. Hydraulic telescopic rod one; 23. Water tank; 24. Drain pipe; 25. Drain valve; 26. Support base; 27. Hydraulic telescopic rod two. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example 1

[0029] A preferred embodiment of the low-moisture, high-purity xylene purification apparatus provided by this utility model is, for example... Figures 1 to 5The following describes a low-moisture, high-purity xylene purification device, comprising a purification chamber 1: Support plates 14 are fixedly connected to both sides of the bottom of the purification chamber 1; a lifting port 2 is horizontally opened through the interior of one side plate of the purification chamber 1; a lifting slide 3 is vertically opened inside the interior of one side plate of the purification chamber 1; a lifting plate 4 is inserted into the interior of the lifting slide 3; a fixed frame 6 is fixedly connected to one side of the lifting plate 4; extension slides 7 are provided on both sides of the fixed frame 6, communicating with the interior of the fixed frame 6; an extension frame 10 is inserted into the interior of the fixed frame 6; a conveying mechanism is provided between the extension frame 10 and the extension slide 7; and an exhaust mechanism is provided between the side of the extension frame 10 away from the purification chamber 1 and the fixed frame 6. The extension frame 10 is inserted into the purification chamber 1 from one side. Both outer walls of the extension frame 10 slide against the inner wall of the purification chamber 1. A heating plate 12 is provided on one side of the extension frame 10 inserted into the purification chamber 1. A purification collection box 17 is fixedly connected to the upper side of one side of the purification chamber 1. A material handling mechanism 1 is provided between the purification collection box 17 and the purification chamber 1. A hydraulic telescopic rod 27 is fixedly connected to the bottom of the purification collection box 17. A fixed frame 6 is fixedly connected to the extension end of the hydraulic telescopic rod 27. A water tank 23 is fixedly connected to the lower side of one side of the purification chamber 1. A material handling mechanism 2 is provided between the water tank 23 and the purification chamber 1. A dehumidification mechanism is provided on the top of the purification chamber 1. Sealing gaskets 5 are provided on all four edges of the lifting plate 4.

[0030] It should be noted that the existing purification equipment has certain shortcomings. Since the liquid water is at the bottom, if high-purity xylene with low water content is to be purified, a large amount of evaporation time is required, which is not conducive to improving work efficiency. In addition, there is always a mixture of the two liquids at the stratification point between the upper and lower layers, making it difficult to extract high purity.

[0031] In this embodiment, the lifting plate 4 is inserted into the lifting slide 3 and moves up and down under the extension and retraction of the hydraulic telescopic rod 27, thereby realizing the lifting and lowering of the fixed frame 6 to adapt to the position of layering. By activating the conveying mechanism between the extension frame 10 and the fixed frame 6, the extension frame 10 is pushed into the purification box 1. At the same time as the extension frame 10 is inserted, the exhaust mechanism is activated to extract the liquid at the layering position into the interior of the extension frame 10 for collection. After the extension frame 10 is fully inserted into the interior of the purification box 1, the upper and lower sides of the extension frame 10 close the upper and lower sides of the interior of the purification box 1. The material picking mechanism 1 and material picking mechanism 2 on the upper and lower sides extract the different liquids on the upper and lower sides of the extension frame 10. After the extraction is completed, the extension frame 10 is retracted back into the interior of the fixed frame 6. At this time, a small amount of mixed liquid inside the fixed frame 6 enters the interior of the purification box 1 for evaporation and purification, which is highly efficient.

[0032] In a further preferred embodiment of the present invention, the conveying mechanism includes an extension groove 7, a motor 8, a threaded rod 9, and a slider 11. Extension grooves 7 are provided on both sides of the extension frame 10. The motor 8 is fixedly connected inside the extension groove 7. The output end of the motor 8 is fixedly connected to the threaded rod 9. The slider 11 is slidably connected inside the extension groove 7. The threaded rod 9 passes through the slider 11. The extension groove 7 and the slider 11 are threadedly connected.

[0033] In a further preferred embodiment of the present invention, sliders 11 are fixedly connected to both sides of the extension frame 10, the extension frame 10 is located inside the fixed frame 6 and slides in close contact, and the motor 8 is fixed inside the extension groove 7 on the side away from the purification box 1.

[0034] In this embodiment, starting the motor 8 can cause the threaded rod 9 to rotate the threaded transmission slider 11, so that the extension frame 10 is located inside the fixed frame 6 and slides in contact.

[0035] In a further preferred embodiment of the present invention, the exhaust mechanism includes an exhaust connector 13, an exhaust hose 15, and an exhaust valve 16. The exhaust connector 13 is fixed to one side of the extension frame 10, and an exhaust hose 15 is fixedly connected to one side of the exhaust connector 13. An exhaust valve 16 is fixedly connected to the other end of the exhaust hose 15.

[0036] In a further preferred embodiment of the present invention, the exhaust hose 15 is a bendable hose, and the exhaust hose 15 connects the exhaust port 13 and the exhaust valve 16.

[0037] In this embodiment, the exhaust valve 16 can be connected to the exhaust hose 15 to discharge the gas compressed by the liquid inside the extension frame 10. Example 2

[0038] Based on Example 1, a preferred embodiment of the low-moisture, high-purity xylene purification apparatus provided by this invention is as follows: Figures 1 to 5 As shown: The material handling mechanism includes a shrinkable suction pipe 20, a liquid handling pump 21, and a hydraulic telescopic rod 22. The shrinkable suction pipe 20 is fixed to one side of the purification collection box 17. The shrinkable section of the shrinkable suction pipe 20 is fixedly connected to the liquid handling pump 21. The hydraulic telescopic rod 22 is fixedly connected to one side of the shrinkable suction pipe 20. The output end of the hydraulic telescopic rod 22 is fixedly connected to the liquid handling pump 21.

[0039] In a further preferred embodiment of the present invention, the shrinkable suction tube 20 is an extendable telescopic tube structure, and the shrinkable suction tube 20 is L-shaped and fixed inside the purification box 1 and the purification collection box 17.

[0040] In this embodiment, the liquid extraction pump 21 can draw the upper layer of solution into the purification collection box 17 for collection by the shrinking suction tube 20. The shrinking suction tube 20 can be extended to the top of the extension frame 10 by activating the hydraulic telescopic rod 22 for extraction.

[0041] In a further preferred embodiment of this utility model, the material handling mechanism 2 includes a drain pipe 24 and a drain valve 25. The bottom of the purification box 1 is fixedly connected to the drain valve 25, and the bottom of the drain valve 25 is fixedly connected to the drain pipe 24. The bottom of the drain pipe 24 is connected to the inside of the water tank 23, and the bottom of the water tank 23 is fixedly connected to the support base 26.

[0042] In this embodiment, the drain valve 25 can be used to draw the liquid below into the water tank 23 for collection.

[0043] In a further preferred embodiment of this utility model, the drain valve 25 is fixed in an L-shape at the bottom of the purification box 1, and the heating plate 12 is away from the drain valve 25.

[0044] In a further preferred embodiment of the present invention, the dehumidification mechanism includes a flip cover 18 and a dehumidifier 19. The flip cover 18 is rotatably connected to one side of the top of the purification chamber 1. One side of the flip cover 18 is rotatably connected to the purification chamber 1 via a hinge. The dehumidifier 19 is fixedly connected to the bottom of the flip cover 18.

[0045] In this embodiment, the dehumidifier 19 can evaporate the mixed liquid retained after the extension frame 10 is contracted after the heating plate 12 is activated, which is highly efficient in evaporating a small amount of mixed liquid.

[0046] The working principle of this utility model is as follows: The extension of the hydraulic telescopic rod 27 is activated, causing the fixed frame 6 to stop at the layered position. The motor 8 is activated, causing the threaded rod 9 to rotate and the threaded transmission slider 11 to slide inside the fixed frame 6, allowing the extension frame 10 to be inserted into the purification chamber 1. Simultaneously, the exhaust valve 16 is activated, connecting the exhaust hose 15 to discharge the gas compressed by the liquid entering the extension frame 10. Liquid at the layered position is drawn into the extension frame 10 for collection. After the extension frame 10 is fully inserted into the purification chamber 1, its upper and lower sides seal the upper and lower sides of the purification chamber 1. The upper drain valve 25 draws the liquid below into the water tank 23 for collection, and the lower drain valve 25 draws the liquid below into the water tank 23 for collection. Different liquids on the upper and lower sides of the extension frame 10 are drawn. After extraction, the extension frame 10 is retracted back into the fixed frame 6. At this point, a small amount of mixed liquid inside the fixed frame 6 enters the purification chamber 1 for evaporation and purification, resulting in high efficiency.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A low-moisture, high-purity xylene purification apparatus, characterized in that, The purification chamber (1) includes a purification chamber body (1): support plates (14) are fixedly connected to both sides of the bottom of the purification chamber body (1). A lifting port (2) is horizontally opened through the interior of one side plate of the purification chamber body (1). A lifting slide groove (3) is vertically opened inside the interior of one side plate of the purification chamber body (1). A lifting plate (4) is inserted into the interior of the lifting slide groove (3). A fixed frame (6) is fixedly connected to one side of the lifting plate (4). An extension slide groove (7) is provided on both sides of the fixed frame (6). The extension slide groove (7) communicates with the interior of the fixed frame (6). An extension frame (10) is inserted into the interior of the fixed frame (6). A conveying mechanism is provided between the extension frame (10) and the extension slide groove (7). An exhaust mechanism is provided between the side of the extension frame (10) away from the purification chamber body (1) and the fixed frame (6). The extension frame (10) is adapted to be inserted from one side. Inside the purification chamber (1), the outer walls of the extension frame (10) on both sides slide against the inner wall of the purification chamber (1). A heating plate (12) is provided on one side of the extension frame (10) inserted into the purification chamber (1). A purification collection box (17) is fixedly connected to the upper side of one side of the purification chamber (1). A material taking mechanism is provided between the purification collection box (17) and the purification chamber (1). A hydraulic telescopic rod (27) is fixedly connected to the bottom of the purification collection box (17). A fixed frame (6) is fixedly connected to the extension end of the hydraulic telescopic rod (27). A water tank (23) is fixedly connected to the lower side of one side of the purification chamber (1). A material taking mechanism is provided between the water tank (23) and the purification chamber (1). A dehumidification mechanism is provided on the top of the purification chamber (1). Sealing gaskets (5) are provided on all four edges of the lifting plate (4).

2. The low-moisture, high-purity xylene purification apparatus according to claim 1, characterized in that, The conveying mechanism includes an extension slide (7), a motor (8), a threaded rod (9), and a slider (11). Extension slides (7) are provided on both sides of the extension frame (10). A motor (8) is fixedly connected inside the extension slide (7). A threaded rod (9) is fixedly connected to the output end of the motor (8). A slider (11) is slidably connected inside the extension slide (7). The threaded rod (9) passes through the slider (11). The extension slide (7) is threadedly connected to the slider (11).

3. The low-moisture, high-purity xylene purification apparatus according to claim 2, characterized in that, Both sides of the extension frame (10) are fixedly connected to sliders (11). The extension frame (10) is located inside the fixed frame (6) and slides in close contact. The motor (8) is fixed inside the extension groove (7) on the side away from the purification box (1).

4. The low-moisture, high-purity xylene purification apparatus according to claim 1, characterized in that, The exhaust mechanism includes an exhaust port (13), an exhaust hose (15), and an exhaust valve (16). The exhaust port (13) is fixed to one side of the extension frame (10). An exhaust hose (15) is fixedly connected to one side of the exhaust port (13), and an exhaust valve (16) is fixedly connected to the other end of the exhaust hose (15).

5. The low-moisture, high-purity xylene purification apparatus according to claim 4, characterized in that, The exhaust hose (15) is a flexible hose that connects the exhaust port (13) and the exhaust valve (16).

6. The low-moisture, high-purity xylene purification apparatus according to claim 1, characterized in that, The material handling mechanism includes a shrinkable suction pipe (20), a liquid handling pump (21), and a hydraulic telescopic rod (22). The shrinkable suction pipe (20) is fixed to one side of the purification collection box (17). The shrinkable section of the shrinkable suction pipe (20) is fixedly connected to the liquid handling pump (21). The hydraulic telescopic rod (22) is fixedly connected to one side of the shrinkable suction pipe (20). The output end of the hydraulic telescopic rod (22) is fixedly connected to the liquid handling pump (21).

7. The low-moisture, high-purity xylene purification apparatus according to claim 6, characterized in that, The shrinkable suction tube (20) is an extendable telescopic tube structure. The shrinkable suction tube (20) is L-shaped and fixed inside the purification box (1) and the purification collection box (17).

8. The low-moisture, high-purity xylene purification apparatus according to claim 1, characterized in that, The material handling mechanism 2 includes a drain pipe (24) and a drain valve (25). The bottom of the purification box (1) is fixedly connected to the drain valve (25), and the bottom of the drain valve (25) is fixedly connected to the drain pipe (24). The bottom of the drain pipe (24) is connected to the inside of the water tank (23), and the bottom of the water tank (23) is fixedly connected to the support base (26).

9. The low-moisture, high-purity xylene purification apparatus according to claim 8, characterized in that, The drain valve (25) is fixed in an L-shape at the bottom of the purification chamber (1), and the heating plate (12) is away from the drain valve (25).

10. The low-moisture, high-purity xylene purification apparatus according to claim 1, characterized in that, The dehumidification mechanism includes a flip cover (18) and a dehumidifier (19). The flip cover (18) is rotatably connected to one side of the top of the purification box (1). One side of the flip cover (18) is rotatably connected to the purification box (1) via a hinge. The dehumidifier (19) is fixedly connected to the bottom of the flip cover (18).

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