Novel tungsten hexafluoride purification device

Abstract

The utility model discloses a novel tungsten hexafluoride purification device which comprises an adsorption tower body, an air inlet formed in the upper end of the adsorption tower body, an air outlet formed in the lower end of the adsorption tower body, a purification part arranged in the middle of the adsorption tower body, a feed port formed in the left side of the upper end of the purification part, and a discharge port formed in the right side of the lower end of the purification part. Sealing plates are mounted in the feeding hole and the discharging hole; two groups of steel wire supporting frames are movably inserted into the purifying part; through the design of the feeding and discharging assembly, the two sets of steel wire supporting frames and the sodium fluoride filler layers and the potassium fluoride filler layers in the two sets of steel wire supporting frames are fed into the adsorption tower body, and the feeding and discharging assembly can be slidably adjusted at the lower end of the adsorption tower body; feeding or discharging the two groups of steel wire supporting frames and the sodium fluoride filler layers and the potassium fluoride filler layers in the two groups of steel wire supporting frames on the left side and the right side of the adsorption tower body respectively.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically a novel tungsten hexafluoride purification device. Background Technology

[0002] The general production process of tungsten hexafluoride is as follows: metallic tungsten reacts with fluorine gas or nitrogen trifluoride to produce crude tungsten hexafluoride. The crude tungsten hexafluoride is purified to obtain tungsten hexafluoride product, which is then sent to the finished product storage tank and filled to obtain the finished product. In the purification stage, there are generally two routes: one is pressurized distillation to obtain tungsten hexafluoride product, but the purity of the tungsten hexafluoride product obtained by this route has certain limitations; the other is to obtain tungsten hexafluoride product through adsorption process.

[0003] Upon investigation, a Chinese utility model invention patent discloses a purification device for tungsten hexafluoride processing (publication number: CN212864158U), which includes an adsorption tower body. A steel wire mesh support frame is slidably inserted into the interior of the adsorption tower body. A fine mesh gauze bag is provided inside the steel wire mesh support frame. The end of the fine mesh gauze bag is provided with a bag opening, and the bag opening extends through to the side wall of the steel wire mesh support frame.

[0004] Although the aforementioned patent allows for quick and convenient installation of the adsorption packing by placing the adsorption packing inside the adsorption tower body through the setting of the first stop and the wire mesh support frame, the existing adsorption towers are relatively large. Therefore, the sodium fluoride packing layer, potassium fluoride packing layer, and wire mesh support frame fed into the tower are also correspondingly large. Manually pulling out these packing layers is extremely laborious. Moreover, at the moment the wire mesh support frame and packing layer are pulled out of the adsorption tower, due to their large size and weight, they are very likely to slip and fall, which may cause the sodium fluoride and potassium fluoride packing layers inside the wire mesh support frame to spill out.

[0005] Therefore, this invention provides a novel tungsten hexafluoride purification device to solve the above problems. Utility Model Content

[0006] Technical problems to be solved

[0007] This invention provides a novel tungsten hexafluoride purification device, which aims to solve the problems mentioned in the background art.

[0008] Technical solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: It includes an adsorption tower body, with an air inlet at the upper end and an exhaust outlet at the lower end. A purification section is located in the middle of the adsorption tower body. A feed inlet is located on the upper left side of the purification section, and a discharge outlet is located on the lower right side of the purification section. Sealing plates are installed inside both the feed inlet and the discharge outlet. Two sets of steel wire support frames are movably inserted into the purification section. Sodium fluoride packing layer and potassium fluoride packing layer are respectively installed inside the two sets of steel wire support frames. A mesh plate is fixedly installed inside the lower end of the adsorption tower body, and a loading / unloading assembly is provided at the lower end of the adsorption tower body.

[0010] Preferably, the loading and unloading assembly includes a fixing ring, which is fixedly installed on the lower outer wall of the adsorption tower body. An annular guide rail is fixedly installed on the upper side of the fixing ring, and a slider is slidably installed on the annular guide rail. A first support plate is fixedly installed on the upper side of the slider. A lifting assembly is provided on the first support plate, and a second support plate is installed on the upper end of the lifting assembly. A second screw is threaded into the left end of the second support plate, and a push plate is slidably installed in the right end of the second support plate. The push plate is rotatably connected to the right end of the second screw.

[0011] Preferably, the lifting assembly includes a storage slot, which is formed in the upper end of the first tray. A first fixing frame is fixedly installed in the storage slot. A first screw is rotatably installed in the first tray. A connecting rod is slidably installed in the first fixing frame and connected to the first screw by a thread. A first support rod is slidably installed in the left end of the first fixing frame and connected to the lower end of the first support rod. A second support rod is rotatably installed in the right end of the first fixing frame and is rotatably connected to the first support rod. A second fixing frame is provided at the upper end of the first and second support rods and is fixedly connected to the lower end of the second tray.

[0012] Preferably, two sets of slots are provided at both ends of the two sets of steel wire support frames, two sets of protrusions are fixedly installed on the right side of the push plate, movable grooves are provided in both sets of protrusions, reset springs are installed in both sets of movable grooves, and locking blocks are movably installed at the lower end of both sets of movable grooves.

[0013] Preferably, the cross-sections of the inner walls of the two sets of slots at the left and right ends of the two sets of card blocks and the cross-sections of the right ends of the two sets of card blocks are all L-shaped, and the right ends of the two sets of card blocks are adapted to the lower inner walls of the two sets of slots at the left and right ends of the two sets of steel wire support frames.

[0014] Preferably, rollers are provided at the connection points between the lower end of the first support rod and the first fixed frame, and at the connection points between the upper end of the second support rod and the second fixed frame. The rollers at the connection points between the lower end of the first support rod and the first fixed frame, and the connection points between the upper end of the second support rod and the second fixed frame, are respectively adapted to the inner walls of the front and rear ends of the first and second fixed frames.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. Facilitates the installation and removal of the packing layer: In this invention, the loading and unloading assembly allows the lifting component to raise the pallet to be level with the discharge port of the purification section. Then, rotating the screw causes the push plate to push the wire support frame into the purification section, and vice versa, it can push the wire support frame out of the purification section. Compared to the laborious manual pulling out of the packing layer in existing technologies, this device is much easier to operate and avoids the risk of the packing layer slipping and spilling due to its large size and weight during extraction. This facilitates the installation and removal of the sodium fluoride and potassium fluoride packing layers.

[0017] 2. Ensure the stability of the packing layer: The slots opened at both ends of the two sets of steel wire support frames and the locking blocks installed on the push plate can ensure the stability of the steel wire support frames in the adsorption tower body when the locking blocks are inserted into the slots, preventing the steel wire support frames from shaking during the purification process, thereby ensuring the purification effect.

[0018] 3. Facilitates the operation of the lifting assembly: Rollers are installed at the connection between the lower end of the support rod and the fixed frame, making the contact between the support rod and the fixed frame smoother during the lifting process, reducing friction, facilitating the operation of the lifting assembly, and improving the efficiency of the device.

[0019] 4. Improved practicality of the device: The design of the air inlet and exhaust port of the adsorption tower body allows crude tungsten hexafluoride to enter the adsorption tower body for purification, while the purified gas can be discharged from the exhaust port. The entire device has a reasonable structure and can effectively purify crude tungsten hexafluoride, thus improving the practicality of the device. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present utility model;

[0021] Figure 2 This is a front view of the cross-sectional structure of this utility model;

[0022] Figure 3 This is a rear view structural diagram of the loading and unloading assembly of this utility model;

[0023] Figure 4 This is a top view of the lifting assembly of this utility model.

[0024] Figure 5This is a right-side structural schematic diagram of the push plate of this utility model.

[0025] In the picture:

[0026] 1-Adsorption tower body, 2-Inlet, 3-Outlet, 4-Purification section, 5-Inlet, 6-Outlet, 7-Sealing plate, 8-Steel wire support frame, 9-Sodium fluoride packing layer, 10-Potassium fluoride packing layer, 11-Slot, 12-Mesh plate, 13-Fixing ring, 14-Annular guide rail, 15-Slider, 16-First support plate, 17-Collection trough, 18-First fixing frame, 19-First screw, 20-Connecting rod, 21-First support rod, 22-Second support rod, 23-Second fixing frame, 24-Second support plate, 25-Second screw, 26-Push plate, 27-Protrusion, 28-Moving groove, 29-Reset spring, 30-Card block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-5 This invention illustrates a specific embodiment of a novel tungsten hexafluoride purification device, comprising an adsorption tower body 1, an air inlet 2 at the upper end of the adsorption tower body 1, an exhaust outlet 3 at the lower end of the adsorption tower body 1, a purification section 4 in the middle of the adsorption tower body 1, a feed inlet 5 on the upper left side of the purification section 4, and a discharge outlet 6 on the lower right side of the purification section 4. Sealing plates 7 are installed inside both the feed inlet 5 and the discharge outlet 6. Two sets of steel wire support frames 8 are movably inserted into the purification section 4, and sodium fluoride packing layer 9 and potassium fluoride packing layer 10 are respectively installed inside the two sets of steel wire support frames 8. A mesh plate 12 is fixedly installed inside the lower end of the adsorption tower body 1, and a loading and unloading assembly is provided at the lower end of the adsorption tower body 1.

[0029] In actual use, the operator can operate the loading and unloading components to slide and adjust them at the lower end of the adsorption tower body 1, so as to load or unload the two sets of steel wire support frames 8 and the sodium fluoride packing layer 9 and potassium fluoride packing layer 10 inside the two sets of steel wire support frames 8 respectively. This improves the loading efficiency of the two sets of steel wire support frames 8 and the sodium fluoride packing layer 9 and potassium fluoride packing layer 10 inside the two sets of steel wire support frames 8, and avoids slippage during loading and unloading of the two sets of steel wire support frames 8 and the sodium fluoride packing layer 9 and potassium fluoride packing layer 10 inside the two sets of steel wire support frames 8.

[0030] The loading and unloading assembly includes a fixing ring 13, which is fixedly installed on the lower outer wall of the adsorption tower body 1. An annular guide rail 14 is fixedly installed on the upper side of the fixing ring 13. A slider 15 is slidably installed on the annular guide rail 14. A first support plate 16 is fixedly installed on the upper side of the slider 15. A lifting assembly is provided on the first support plate 16. A second support plate 24 is installed on the upper end of the lifting assembly. A second screw 25 is threadedly inserted into the left end of the second support plate 24. A push plate 26 is slidably installed in the right end of the second support plate 24. The push plate 26 is rotatably connected to the right end of the second screw 25.

[0031] In actual operation, the operator raises the second pallet 24 using the lifting assembly, and then rotates the second screw 25 clockwise. When the second screw 25 rotates, it pushes the push plate 26 to slide inside the second pallet 24 through the thread. The push plate 26 slides and pushes the two sets of steel wire support frames 8 into the purification section 4 in sequence. Conversely, the first pallet 16 and the slider 15 are slid on the annular guide rail 14 to the right side of the adsorption tower body 1, thereby pulling out the two sets of steel wire support frames 8 in the purification section 4 in sequence, and then feeding the two sets of steel wire support frames 8.

[0032] The lifting assembly includes a storage slot 17, which is located inside the upper end of the first support plate 16. A first fixing frame 18 is fixedly installed inside the storage slot 17. A first screw 19 is rotatably installed inside the first support plate 16. A connecting rod 20 is slidably installed inside the first fixing frame 18 and is connected to the first screw 19 by threads. A first support rod 21 is slidably installed inside the left end of the first fixing frame 18 and is connected to the lower end of the connecting rod 20. A second support rod 22 is rotatably installed inside the right end of the first fixing frame 18 and is rotatably connected to the first support rod 21. A second fixing frame 23 is provided at the upper end of the first support rod 21 and the second support rod 22 and is fixedly connected to the lower end of the second support plate 24.

[0033] In actual operation, the operator can rotate the first screw 19. When the first screw 19 rotates, it pushes the connecting rod 20 to slide in the first fixed frame 18 through the thread. The sliding of the connecting rod 20 pushes the first support rod 21 and the second support rod 22 to rotate and unfold. At the same time as the first support rod 21 and the second support rod 22 rotate and unfold, they drive the second fixed frame 23 and the second pallet 24 to rise. When the second pallet 24 rises, it pushes the two sets of steel wire support frames 8 to rise through the push plate 26, thereby realizing the lifting and lowering operation of loading or unloading the two sets of steel wire support frames 8 and the sodium fluoride filler layer 9 and potassium fluoride filler layer 10 in the two sets of steel wire support frames 8.

[0034] Two sets of slots 11 are provided at both ends of the two sets of steel wire support frames 8. Two sets of protrusions 27 are fixedly installed on the right side of the push plate 26. Movable grooves 28 are provided in both sets of protrusions 27. Reset springs 29 are installed in both sets of movable grooves 28. A locking block 30 is movably installed in the lower end of both sets of movable grooves 28.

[0035] After moving the two sets of locking blocks 30 within the two sets of movable slots 28 and locking them into the two sets of locking slots 11 at the left and right ends of the two sets of steel wire support frames 8, the two sets of locking blocks 30 are released. Under the restoring force of the return springs 29 in the two sets of movable slots 28, the two sets of locking blocks 30 slide and engage with the inner walls of the two sets of locking slots 11 at the left and right ends of the two sets of steel wire support frames 8. This allows for the pulling of the two sets of steel wire support frames 8 and the sodium fluoride filler layer 9 and potassium fluoride filler layer 10 within the two sets of steel wire support frames 8 for feeding or unloading.

[0036] The cross-sections of the inner walls of the two sets of slots 11 at the left and right ends of the two sets of steel wire support frames 8 and the cross-sections of the right ends of the two sets of blocks 30 are all L-shaped. The right ends of the two sets of blocks 30 are adapted to the lower inner walls of the two sets of slots 11 at the left and right ends of the two sets of steel wire support frames 8.

[0037] The right ends of the two sets of locking blocks 30 are L-shaped and are locked into the inner walls of the lower ends of the two sets of locking slots 11 at the left and right ends of the two sets of steel wire support frames 8, so as to fix them to the two sets of steel wire support frames 8 and ensure the stability of feeding or unloading.

[0038] Rollers are provided at the connection points between the lower end of the first support rod 21 and the first fixed frame 18, and between the upper end of the second support rod 22 and the second fixed frame 23. The rollers at the connection points between the lower end of the first support rod 21 and the first fixed frame 18, and between the upper end of the second support rod 22 and the second fixed frame 23, are respectively adapted to the inner walls of the front and rear ends of the first fixed frame 18 and the second fixed frame 23.

[0039] The use of rollers reduces the friction between the lower end of the first support rod 21 and the first fixed frame 18, and the upper end of the second support rod 22 and the second fixed frame 23, making the first support rod 21 and the second support rod 22 rotate and retract more smoothly within the first fixed frame 18 and the second fixed frame 23, thus improving the operating efficiency of the lifting assembly.

[0040] Working principle: In actual operation, two sets of steel wire support frames 8 containing sodium fluoride filler layer 9 and potassium fluoride filler layer 10 are placed sequentially on the second pallet 24. By rotating the first screw 19, the connecting rod 20 slides within the receiving groove 17, and the first support rod 21 and the second support rod 22 unfold under the push of the connecting rod 20, thereby causing the second fixing frame 23 and the second pallet 24 to rise. When the second pallet 24 rises to the appropriate position, the operator rotates the second screw 25 clockwise. The second screw 25 pushes the push plate 26 to slide within the second pallet 24 through the thread, thereby pushing the two sets of steel wire support frames 8 from the feed port 5. The material is sequentially fed into the purification section 4. Since two sets of protrusions 27 are fixedly installed on the right side of the push plate 26, the return springs 29 in the two sets of protrusions 27 exert a restorative force on the locking block 30, so that the locking block 30 can be firmly locked into the two sets of slots 11 at the left and right ends of the two sets of steel wire support frames 8, ensuring the stability of the two sets of steel wire support frames 8 during the feeding process. In addition, the opening of the feed port 5 is sealed by the sealing plate 7, so that the two sets of steel wire support frames 8 are in a suitable purification position. During the purification of tungsten hexafluoride, the sodium fluoride packing layer 9 and the potassium fluoride packing layer 10 can give full play to their purification function and perform efficient purification of tungsten hexafluoride.

[0041] Conversely, the operator operates the lifting assembly again to lower the second pallet 24, and then slides the first pallet 16 and the slider 15 on the annular guide rail 14 to the right side of the adsorption tower body 1. At this time, the second screw 25 is rotated counterclockwise, and the second screw 25 pulls the push plate 26 to slide to the left inside the second pallet 24 through the thread, thereby driving the two sets of steel wire support frames 8 to be pulled out from the discharge port 6 on the lower right side of the purification section 4 in sequence. During the pulling process, since the locking block 30 is engaged with the inner wall of the two sets of locking grooves 11 at the left and right ends of the two sets of steel wire support frames 8, the stability of the two sets of steel wire support frames 8 during the pulling can be ensured, and slippage is avoided.

[0042] The applicant further declares that while the above embodiments illustrate the implementation method and apparatus structure of this utility model, this utility model is not limited to the above-described embodiments, meaning that this utility model must rely on the above methods and structures to be implemented. Those skilled in the art should understand that any improvements to this utility model, equivalent substitutions for the selected implementation methods, additions of steps, and selection of specific methods all fall within the protection and disclosure scope of this utility model.

[0043] This utility model is not limited to the above-described embodiments. All methods that use similar structures and methods to achieve the purpose of this utility model are within the protection scope of this utility model.

Claims

1. A novel purification device for tungsten hexafluoride, comprising an adsorption tower body (1), the upper end of the adsorption tower body (1) is provided with an air inlet (2), the lower end of the adsorption tower body (1) is provided with an air outlet (3), characterized in that: The adsorption tower body (1) is provided with a purification section (4) in the middle. The upper left side of the purification section (4) is provided with a feed inlet (5) and the lower right side of the purification section (4) is provided with a discharge port (6). Both the feed inlet (5) and the discharge port (6) are equipped with sealing plates (7). Two sets of steel wire support frames (8) are movably inserted in the purification section (4). Sodium fluoride packing layer (9) and potassium fluoride packing layer (10) are respectively provided in the two sets of steel wire support frames (8). A mesh plate (12) is fixedly installed in the lower end of the adsorption tower body (1). The lower end of the adsorption tower body (1) is provided with a loading and unloading assembly.

2. A novel purification device for tungsten hexafluoride as claimed in claim 1, wherein: The loading and unloading assembly includes a fixing ring (13), which is fixedly installed on the lower outer wall of the adsorption tower body (1). An annular guide rail (14) is fixedly installed on the upper side of the fixing ring (13). A slider (15) is slidably installed on the annular guide rail (14). A first support plate (16) is fixedly installed on the upper side of the slider (15). A lifting assembly is provided on the first support plate (16). A second support plate (24) is installed on the upper end of the lifting assembly. A second screw (25) is threaded into the left end of the second support plate (24). A push plate (26) is slidably installed in the right end of the second support plate (24). The push plate (26) is rotatably connected to the right end of the second screw (25).

3. A novel purification device for tungsten hexafluoride as claimed in claim 2, wherein: The lifting assembly includes a storage slot (17), which is located at the upper end of the first support plate (16). A first fixing frame (18) is fixedly installed in the storage slot (17). A first screw (19) is rotatably installed in the first support plate (16). A connecting rod (20) is slidably installed in the first fixing frame (18). The connecting rod (20) is connected to the first screw (19) by a thread. A first support rod (21) is slidably installed in the left end of the first fixing frame (18). The connecting rod (20) is connected to the lower end of the first support rod (21). A second support rod (22) is rotatably installed in the right end of the first fixing frame (18). The second support rod (22) is rotatably connected to the first support rod (21). A second fixing frame (23) is provided at the upper end of the first support rod (21) and the second support rod (22). The second fixing frame (23) is fixedly connected to the lower end of the second support plate (24).

4. A novel purification device for tungsten hexafluoride as claimed in claim 2, wherein: Two sets of slots (11) are provided at both ends of the two sets of steel wire support frames (8). Two sets of protrusions (27) are fixedly installed on the right side of the push plate (26). Movable grooves (28) are provided in both sets of protrusions (27). Reset springs (29) are installed in both sets of movable grooves (28). A locking block (30) is movably installed in the lower end of both sets of movable grooves (28).

5. The novel tungsten hexafluoride purification device according to claim 4, characterized in that: The cross-sections of the inner walls of the two sets of slots (11) at the left and right ends of the two sets of card blocks (30) are all L-shaped. The right ends of the two sets of card blocks (30) are adapted to the lower inner walls of the two sets of slots (11) at the left and right ends of the two sets of steel wire support frames (8).

6. A novel purification device for tungsten hexafluoride as claimed in claim 3, wherein: Rollers are provided at the connection points of the lower end of the first support rod (21) with the first fixed frame (18) and the upper end of the second support rod (22) with the second fixed frame (23). The rollers at the connection points of the lower end of the first support rod (21) with the first fixed frame (18) and the upper end of the second support rod (22) with the second fixed frame (23) are respectively adapted to the inner walls of the front and rear ends of the first fixed frame (18) and the second fixed frame (23).

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