Efficient purification device for dimethylformamide solvent

Abstract

The utility model relates to the technical field of dimethylformamide purification, in particular to an efficient dimethylformamide solvent purification device which comprises a first box body and a sealing plate, the top of the first box body is communicated with a second box body, and a pressurizing adsorption mechanism is arranged at the top of the second box body. Through cooperative use of a damping movable sleeve, a second transmission rod, a pressurizing adsorption mechanism, a first transmission belt, a first transmission wheel, a top plate, a threaded rod, a liquid inlet pipe, a sealing plate and a second box body, in the use process, a servo motor can be started through an external controller; and a damping movable sleeve is pushed to connect a first transmission rod with a second transmission rod, and then the output end of a servo motor drives a left second transmission wheel to rotate through a connecting roller, so that a second transmission belt drives a right second transmission wheel to rotate, and the first transmission rod is driven to drive a pressurizing adsorption mechanism to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of dimethylformamide, in particular to a device for efficiently purifying a dimethylformamide solvent. Background Art

[0002] Dimethylformamide (DMF) is a colorless organic solvent with a fishy smell. It is synthesized from methanol and ammonia in the presence of a catalyst. In the synthesis process of dimethylformamide, a high-efficiency dimethylformamide solvent purification device is often required.

[0003] After searching, the patent number is CN117258322A, and the name is a dimethylformamide separation and purification device and method, which belongs to the technical field of dimethylformamide separation and purification. Through research and analysis, it is found that although it has the advantage of high space utilization, it still has the following disadvantages to a certain extent.

[0004] For example, the dimethylformamide solvent purification device mentioned above usually does not have a synchronously driven gas dispersion device during use, which results in that when it uses the gas desorption method for purification, the purification efficiency of the main body is easily affected to a certain extent due to uneven gas distribution, thereby causing certain inconvenience to the user. In order to solve the above technical problems, we have designed a dimethylformamide solvent efficient purification device. Utility Model Content

[0005] The utility model aims to provide a dimethylformamide solvent efficient purification device, which has the advantages of uniform gas dispersion and efficient purification, and solves the problem of relatively general purification efficiency caused by uneven gas dispersion.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly efficient purification device for dimethylformamide solvent, comprising a first box body and a sealing plate, the top of the first box body is connected to a second box body, the top of the second box body is provided with a pressurized adsorption mechanism, the pressurized adsorption mechanism comprises a second transmission rod, the bottom of the first box body is provided with a gas dispersion mechanism, the gas dispersion mechanism comprises a bottom plate, and the top of the bottom plate is welded to the bottom of the first box body.

[0007] Preferably, a liquid inlet pipe is installed through the left side of the top of the sealing plate, and a sealing piston is provided on the bottom sliding sleeve of the surface of the liquid inlet pipe.

[0008] Preferably, the pressurized adsorption mechanism includes a top plate, a support member is welded to the left side of the rear side of the top plate, and a side of the support member away from the top plate is welded to the first box body.

[0009] Preferably, a threaded rod is movably connected to the left side of the bottom of the top plate via a bearing, the bottom of the threaded rod penetrates into the bottom of the sealing plate and is welded with a limiting block, the surface of the threaded rod is threadedly connected to the inner wall of the sealing piston, and the right side of the bottom of the top plate is movably connected to the top of the second transmission rod via a bearing, the top of the second transmission rod surface and the top of the threaded rod surface are both fixedly sleeved with a first transmission wheel, and the surface of the first transmission wheel is sleeved with a first transmission belt.

[0010] Preferably, a cross positioning cone is welded to the bottom of the second transmission rod, the right side of the top of the base plate is movably connected to the first transmission rod through a bearing, a damping sleeve is welded to the top of the first transmission rod, and a cross positioning groove is opened on the top of the damping sleeve.

[0011] Preferably, a servo motor is connected to the left side of the bottom of the base plate by bolts, and the output end of the servo motor passes through the top of the base plate and is welded with a connecting roller, the bottom of the connecting roller surface and the bottom of the first transmission rod surface are fixedly sleeved with a second transmission wheel, the surface of the second transmission wheel is sleeved with a second transmission belt, a gas dispersion nozzle is arranged on the outside of the connecting roller, an activated carbon mesh plate is penetrated at the center of the bottom of the second box body, a guide cover is arranged in the inner cavity of the first box body, a discharge pipe is connected to the bottom of the guide cover, and the discharge pipe passes through the side away from the guide cover to the outside of the first box body and is connected to a one-way discharge valve.

[0012] Preferably, a dust cover is provided on the top threaded sleeve of the liquid inlet pipe surface, and anti-slip protrusions are welded on the surface of the dust cover. Support legs are welded at the four corners of the bottom of the first box body, and a support seat is welded at the bottom of the support legs, and threaded holes are opened on both sides of the top of the support seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with a damping sleeve, a second transmission rod, a pressurized adsorption mechanism, a first transmission belt, a first transmission wheel, a top plate, a threaded rod, a liquid inlet pipe, a sealing plate and a second box body for coordinated use. During use, the servo motor can be started by an external controller, and the damping sleeve can be pushed to connect the first transmission rod and the second transmission rod. Then, the output end of the servo motor drives the left second transmission wheel to rotate through the connecting roller, thereby driving the right second transmission wheel to rotate through the second transmission belt, thereby driving the first transmission rod to drive the pressurized adsorption mechanism to rotate.

[0015] 2. The utility model is provided with a one-way discharge valve, a discharge pipe, a servo motor, a bottom plate, a second transmission belt, a second transmission wheel, a first transmission rod, a connecting roller, a gas dispersion nozzle, a sealing piston, an activated carbon mesh plate and a guide cover. During use, the threaded rod can be driven to rotate by the transmission of the upper first transmission belt and the first transmission wheel, and then the sealing piston can be driven to move by thread transmission, so as to adjust the pressure of the inner cavity of the second box body to accelerate the adsorption process of the activated carbon mesh plate. After the adsorption is completed, the excess water is discharged to the outside through the discharge pipe and the one-way discharge valve, and then the user introduces inert gas into the inner cavity of the first box body through the gas dispersion nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional axonometric diagram of the local structure of the utility model;

[0018] Figure 3 It is a three-dimensional left-side schematic diagram of the local structure of the utility model;

[0019] Figure 4 It is a three-dimensional bottom view schematic diagram of the local structure of the utility model.

[0020] In the figure: 1. first box body; 2. damping sleeve; 3. second transmission rod; 4. pressurized adsorption mechanism; 5. first transmission belt; 6. first transmission wheel; 7. top plate; 8. threaded rod; 9. liquid inlet pipe; 10. sealing plate; 11. second box body; 12. gas dispersion mechanism; 13. one-way discharge valve; 14. discharge pipe; 15. servo motor; 16. bottom plate; 17. second transmission belt; 18. second transmission wheel; 19. first transmission rod; 20. connecting roller; 21. gas dispersion nozzle; 22. sealing piston; 23. activated carbon mesh plate; 24. deflector. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 4 A highly efficient purification device for dimethylformamide solvent comprises a first box body 1 and a sealing plate 10. The top of the first box body 1 is connected to a second box body 11. A pressurized adsorption mechanism 4 is arranged on the top of the second box body 11. The pressurized adsorption mechanism 4 comprises a second transmission rod 3. A gas dispersion mechanism 12 is arranged on the bottom of the first box body 1. The gas dispersion mechanism 12 comprises a bottom plate 16. The top of the bottom plate 16 is welded to the bottom of the first box body 1.

[0022] See also Figure 2 A liquid inlet pipe 9 is installed through the left side of the top of the sealing plate 10, and a sealing piston 22 is provided on the bottom sliding sleeve of the surface of the liquid inlet pipe 9.

[0023] See also Figure 2 The pressurized adsorption mechanism 4 includes a top plate 7 , a support member is welded to the left side of the rear side of the top plate 7 , and a side of the support member away from the top plate 7 is welded to the first box body 1 .

[0024] See also Figure 2 The left side of the bottom of the top plate 7 is movably connected with a threaded rod 8 through a bearing, the bottom of the threaded rod 8 penetrates to the bottom of the sealing plate 10 and is welded with a limiting block, the surface of the threaded rod 8 is threadedly connected to the inner wall of the sealing piston 22, and the right side of the bottom of the top plate 7 is movably connected to the top of the second transmission rod 3 through a bearing, the top of the surface of the second transmission rod 3 and the top of the surface of the threaded rod 8 are fixedly sleeved with a first transmission wheel 6, and the surface of the first transmission wheel 6 is sleeved with a first transmission belt 5.

[0025] See also Figure 2 A cross positioning cone is welded at the bottom of the second transmission rod 3, and the first transmission rod 19 is movably connected to the right side of the top of the bottom plate 16 through a bearing. A damping sleeve 2 is welded at the top of the first transmission rod 19, and a cross positioning groove is opened at the top of the damping sleeve 2.

[0026] See also Figure 2 A servo motor 15 is bolted to the left side of the bottom of the bottom plate 16, and the output end of the servo motor 15 passes through the top of the bottom plate 16 and is welded with a connecting roller 20. The bottom of the surface of the connecting roller 20 and the bottom of the surface of the first transmission rod 19 are fixedly sleeved with a second transmission wheel 18, and the surface of the second transmission wheel 18 is sleeved with a second transmission belt 17. A gas dispersion nozzle 21 is arranged on the outside of the connecting roller 20, and an activated carbon mesh plate 23 is penetrated at the center of the bottom of the second box body 11. A guide cover 24 is arranged in the inner cavity of the first box body 1. By setting the guide cover 24, the original solvent and the desorbed DMF can be diverted, thereby accelerating the discharge speed of the main body thereof. The bottom of the guide cover 24 is connected with a discharge pipe 14, and the side of the discharge pipe 14 away from the guide cover 24 passes through the outside of the first box body 1 and is connected with a one-way discharge valve 13.

[0027] See also Figure 2 A dust cover is provided on the top threaded sleeve of the surface of the liquid inlet pipe 9. By providing the dust cover, external dust and impurities can be intercepted to prevent them from entering the inner cavity of the liquid inlet pipe 9. Anti-slip protrusions are welded on the surface of the dust cover. Support legs are welded at the four corners of the bottom of the first box body 1, and a support seat is welded at the bottom of the support leg. Threaded holes are provided on both sides of the top of the support seat. By providing the support legs, the device can be balanced and supported, thereby improving the support stability of the main body of the device. By providing the support seat and the threaded holes, the support legs can be easily fixed, thereby improving the support stability of the main body.

[0028] When in use, the user first puts the material into the inner cavity of the second box body 11 through the liquid inlet pipe 9, then starts the servo motor 15 through the external controller, and pushes the damping movable sleeve 2 to connect the first transmission rod 19 with the second transmission rod 3, and then the output end of the servo motor 15 drives the left second transmission wheel 18 to rotate through the connecting roller 20, thereby driving the right second transmission wheel 18 to rotate through the second transmission belt 17, thereby driving the first transmission rod 19 to drive the pressurized adsorption mechanism 4 to rotate, and then the threaded rod 8 is driven to rotate through the transmission of the upper first transmission belt 5 and the first transmission wheel 6, and then the sealing movable sleeve 18 is driven by the threaded transmission. The plug 22 moves to adjust the pressure in the inner cavity of the second box body 11 to accelerate the adsorption process of the activated carbon mesh plate 23. After the adsorption is completed, the excess water is discharged to the outside through the discharge pipe 14 and the one-way discharge valve 13. Then the user introduces inert gas into the inner cavity of the first box body 1 through the gas dispersion nozzle 21. During this process, the user starts the servo motor 15 through the external controller. The output end of the servo motor 15 drives the gas dispersion nozzle 21 to rotate through the connecting roller 20, thereby improving the gas dispersion degree of the main body. Finally, the desorbed DMF is guided by the guide cover 24 and flows out through the one-way discharge valve 13 along the discharge pipe 14.

[0029] In summary: the dimethylformamide solvent efficient purification device solves the problem of uneven gas dispersion leading to relatively general purification efficiency by setting a one-way discharge valve 13, a discharge pipe 14, a servo motor 15, a base plate 16, a second transmission belt 17, a second transmission wheel 18, a first transmission rod 19, a connecting roller 20, a gas dispersion nozzle 21, a sealing piston 22, an activated carbon mesh plate 23 and a guide cover 24.

Claims

1. A highly efficient dimethylformamide solvent purification device, comprising a first housing (1) and a sealing plate (10), characterized in that: The top of the first box (1) is connected to the second box (11), the top of the second box (11) is provided with a pressurized adsorption mechanism (4), the pressurized adsorption mechanism (4) comprises a second transmission rod (3), the bottom of the first box (1) is provided with a gas dispersion mechanism (12), the gas dispersion mechanism (12) comprises a bottom plate (16), the top of the bottom plate (16) is welded to the bottom of the first box (1).

2. A dimethylformamide solvent efficient purification device according to claim 1, characterized in that: A liquid inlet pipe (9) is installed through the left side of the top of the sealing plate (10), and a sealing piston (22) is provided on the bottom sliding sleeve of the surface of the liquid inlet pipe (9).

3. A dimethylformamide solvent efficient purification device according to claim 1, characterized in that: The pressurized adsorption mechanism (4) comprises a top plate (7), a support member is welded to the left side of the rear side of the top plate (7), and a side of the support member away from the top plate (7) is welded to the first box body (1).

4. A dimethylformamide solvent efficient purification device according to claim 3, characterized in that: The left side of the bottom of the top plate (7) is movably connected to a threaded rod (8) via a bearing, the bottom of the threaded rod (8) penetrates the bottom of the sealing plate (10) and is welded with a limit block, the surface of the threaded rod (8) is threadedly connected to the inner wall of the sealing piston (22), the right side of the bottom of the top plate (7) is movably connected to the top of the second transmission rod (3) via a bearing, the top of the surface of the second transmission rod (3) and the top of the surface of the threaded rod (8) are both fixedly sleeved with a first transmission wheel (6), and the surface of the first transmission wheel (6) is sleeved with a first transmission belt (5).

5. A dimethylformamide solvent efficient purification device according to claim 1, characterized in that: A cross positioning cone is welded at the bottom of the second transmission rod (3); the right side of the top of the bottom plate (16) is movably connected to the first transmission rod (19) via a bearing; a damping movable sleeve (2) is welded at the top of the first transmission rod (19); and a cross positioning groove is provided at the top of the damping movable sleeve (2).

6. A dimethylformamide solvent efficient purification device according to claim 5, characterized in that: The left side of the bottom of the bottom plate (16) is connected to a servo motor (15) by bolts, the output end of the servo motor (15) passes through the top of the bottom plate (16) and is welded with a connecting roller (20), the bottom of the surface of the connecting roller (20) and the bottom of the surface of the first transmission rod (19) are both fixedly sleeved with a second transmission wheel (18), the surface of the second transmission wheel (18) is sleeved with a second transmission belt (17), a gas dispersion nozzle (21) is arranged on the outside of the connecting roller (20), an activated carbon mesh plate (23) is penetrated at the center of the bottom of the second box body (11), the inner cavity of the first box body (1) is provided with a guide cover (24), the bottom of the guide cover (24) is connected to a discharge pipe (14), and the side of the discharge pipe (14) away from the guide cover (24) passes through the outside of the first box body (1) and is connected to a one-way discharge valve (13).

7. A dimethylformamide solvent efficient purification device according to claim 2, characterized in that: A dust cover is provided on the top threaded sleeve of the surface of the liquid inlet pipe (9), and anti-slip protrusions are welded on the surface of the dust cover. Support legs are welded at the four corners of the bottom of the first box body (1), and a support seat is welded at the bottom of the support legs. Threaded holes are provided on both sides of the top of the support seat.

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