Rectifying tower for preparing vinylene carbonate

Abstract

The rectifying tower comprises a rectifying tower body, an exhaust pipe is installed at the top end of the rectifying tower body, a protection pad is fixed to the inner wall of a positioning plate, a movable plate frame is installed in an installation window in a penetrating mode, and activated carbon is arranged in the movable plate frame. A servo motor is fixed to the bottom of the inner side of the adsorption box, a driving gear is fixed to the tail end of an output shaft of the servo motor, a driven gear is fixed to one end of the outer wall of a horizontal sleeve, and the horizontal sleeve is rotationally installed in a hole formed in the bottom of the adsorption box through a bearing seat in the middle of the outer wall. The inner wall of the horizontal sleeve is connected with one end of a horizontal threaded rod, and the horizontal threaded rod penetrates through a hole formed in the bottom of the adsorption box. According to the rectifying tower for preparing vinylene carbonate, novel structural design is adopted, the exhaust pipe installed at the top end of the rectifying tower body can be stably supported, exhausted waste gas can be efficiently adsorbed, and meanwhile the adsorption structure can be conveniently moved out and cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation towers, in particular to a distillation tower for preparing vinylene carbonate. Background Art

[0002] Vinylene carbonate is a commonly used industrial organic substance. It is a new type of organic film-forming additive and overcharge protection additive for lithium-ion batteries. It can also be used as a monomer for the preparation of polyvinyl carbonate. A distillation tower is required during its production.

[0003] In the authorized Chinese utility model patent with the publication number CN217612994U, entitled a distillation tower for the production of vinylene carbonate, the size of the distillation tower used is too different from the size of the existing small-diameter and high distillation tower, which does not meet the production requirements. Similarly, the matching filter bin cannot effectively filter the gas discharged from the exhaust pipe connected to the existing distillation tower. Therefore, it is necessary to design a distillation tower for preparing vinylene carbonate to address the above problems. Summary of the invention

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a distillation tower for preparing vinylene carbonate, comprising a distillation tower body, an exhaust pipe is installed on the top of the distillation tower body, a support plate is fixed to one side of the top of the distillation tower body, a support frame is arranged on the top surface of the support plate, a bottom bolt is fixed to the edge of the bottom surface of the support frame, a locking nut is installed on the bottom end of the bottom bolt, the bottom bolt passes through a track window, the track window is opened on the top edge of the support plate, a positioning plate is fixed to the top of the support frame, a protective pad is fixed to the inner wall of the positioning plate, the protective pad is fitted with the exhaust pipe, and the bottom end of the exhaust pipe is connected to one side of the top surface of the adsorption box, A discharge pipe is fixedly installed at the bottom of the other end of the adsorption box, an installation window is opened on the front side of the adsorption box, a movable plate frame is installed through the installation window, activated carbon is arranged in the movable plate frame, a servo motor is fixed to the bottom of the inner side of the adsorption box, a driving gear is fixed to the end of the output shaft of the servo motor, the top of the driving gear is meshed and connected with the bottom end of the driven gear, the driven gear is fixed to one end of the outer wall of the horizontal sleeve, the horizontal sleeve is rotatably installed in the hole opened at the bottom of the adsorption box through the bearing seat in the middle of the outer wall, the inner wall of the horizontal sleeve is connected to one end of the horizontal threaded rod, and the horizontal threaded rod passes through the hole opened at the bottom of the adsorption box.

[0005] Preferably, the centers of the support frame and the support plate are on the same vertical plane, and the width of the vertical portion of the support frame is greater than half the diameter of the exhaust pipe.

[0006] Preferably, the bottom bolts are symmetrically distributed about the support frame, and the bottom bolts are tightly fitted to the inner wall of the track window.

[0007] Preferably, the thickness of the protection pad is greater than half the thickness of the positioning plate, and the side view shape of the positioning plate is a semicircular ring.

[0008] Preferably, the movable panel frames are snap-fitted to the installation window, and the movable panel frames are densely distributed at equal intervals.

[0009] Preferably, the centers of the driving gear, the driven gear, the horizontal sleeve and the horizontal threaded rod are on the same vertical plane, the horizontal sleeve is threadedly connected to the horizontal threaded rod, and the length of the horizontal threaded rod is greater than the width of the adsorption box.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the distillation tower for preparing vinylene carbonate adopts a novel structural design, which can not only stably support the exhaust pipe installed at the top of the distillation tower body, but also efficiently adsorb the discharged waste gas, and the adsorption structure can be conveniently removed and cleaned;

[0011] 1. The support frame, positioning plate and protection pad are stably installed through the support plate, and the top of the exhaust pipe is stably supported and positioned. The bottom bolts are used to slide horizontally along the track window, so that the horizontal position of the positioning plate and the protection pad can be adjusted according to the actual installation environment to ensure the stable use of the exhaust pipe at the top of the higher distillation tower;

[0012] 2. The activated carbon in the movable plate frame with equal spacing can efficiently adsorb harmful substances in the exhaust gas, and the servo motor drives the driving gear to rotate. The driving gear drives the horizontal sleeve to rotate stably through the driven gear. The threaded connection relationship is used to drive the horizontal threaded rod to slide the movable plate frame along the installation window, which is convenient for cleaning or replacement of the activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the front cross-sectional structure of the support plate and the positioning plate of the utility model;

[0015] Figure 3 This is a schematic diagram of the side cross-sectional structure of the support plate and the positioning plate of the utility model;

[0016] Figure 4 It is a schematic diagram of the side cross-sectional structure of the adsorption box of the utility model.

[0017] In the figure: 1. distillation tower body; 2. exhaust pipe; 3. support plate; 4. support frame; 5. bottom bolt; 6. locking nut; 7. track window; 8. positioning plate; 9. protection pad; 10. adsorption box; 11. discharge pipe; 12. installation window; 13. movable plate frame; 14. activated carbon; 15. servo motor; 16. driving gear; 17. driven gear; 18. horizontal sleeve; 19. horizontal threaded rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 The utility model provides a technical solution: a distillation tower for preparing vinylene carbonate, comprising a distillation tower body 1, an exhaust pipe 2, a support plate 3, a support frame 4, a bottom bolt 5, a locking nut 6, a track window 7, a positioning plate 8, a protective pad 9, an adsorption box 10, a discharge pipe 11, an installation window 12, a movable plate frame 13, activated carbon 14, a servo motor 15, a driving gear 16, a driven gear 17, a horizontal sleeve 18 and a horizontal threaded rod 19. The exhaust pipe 2 is installed on the top of the distillation tower body 1, a support plate 3 is fixed to one side of the top of the distillation tower body 1, a support frame 4 is arranged on the top surface of the support plate 3, a bottom bolt 5 is fixed to the bottom edge of the support frame 4, a locking nut 6 is installed at the bottom end of the bottom bolt 5, the bottom bolt 5 passes through the track window 7, the track window 7 is opened at the top edge of the support plate 3, a positioning plate 8 is fixed to the top of the support frame 4, and the positioning plate 8 A protective pad 9 is fixed to the inner wall, and the protective pad 9 is fitted with the exhaust pipe 2. The bottom end of the exhaust pipe 2 is connected to one side of the top surface of the adsorption box 10, and a discharge pipe 11 is fixedly installed at the bottom of the other end of the adsorption box 10. An installation window 12 is opened on the front side of the adsorption box 10, and a movable plate frame 13 is installed through the installation window 12. Activated carbon 14 is arranged in the movable plate frame 13. A servo motor 15 is fixed to the bottom of the inner side of the adsorption box 10, and a driving gear 16 is fixed to the end of the output shaft of the servo motor 15. The top of the driving gear 16 is meshed and connected with the bottom end of the driven gear 17. The driven gear 17 is fixed to one end of the outer wall of the horizontal sleeve 18, and the horizontal sleeve 18 is rotatably installed in the hole opened at the bottom of the adsorption box 10 through the bearing seat in the middle of the outer wall. The inner wall of the horizontal sleeve 18 is connected to one end of the horizontal threaded rod 19, and the horizontal threaded rod 19 passes through the hole opened at the bottom of the adsorption box 10.

[0020] The centers of the support frame 4 and the support plate 3 are on the same vertical plane, and the width of the vertical part of the support frame 4 is greater than half the diameter of the exhaust pipe 2. The above structural design can stably support the positioning plate 8 and ensure the positioning and protection effect of the positioning plate 8 on the exhaust pipe 2.

[0021] The bottom bolts 5 are symmetrically distributed about the support frame 4 , and the bottom bolts 5 are tightly fitted with the inner wall of the track window 7 . The above structural design enables the support frame 4 to slide along the track window 7 with the bottom bolts 5 to adjust the actual installation position.

[0022] The thickness of the protection pad 9 is greater than half of the thickness of the positioning plate 8 , and the side view shape of the positioning plate 8 is a semicircular ring. The above structural design enables the positioning plate 8 and the protection pad 9 to stably support and protect the exhaust pipe 2 .

[0023] The movable plate frame 13 is snap-fitted to the installation window 12 , and the movable plate frames 13 are densely distributed at equal intervals. The above structural design enables the movable plate frame 13 to be stably installed and used, and the activated carbon 14 installed on the movable plate frame 13 can efficiently adsorb and filter the exhaust gas.

[0024] The centers of the driving gear 16, the driven gear 17, the horizontal sleeve 18 and the horizontal threaded rod 19 are on the same vertical plane. The horizontal sleeve 18 is threadedly connected to the horizontal threaded rod 19. The length of the horizontal threaded rod 19 is greater than the width of the adsorption box 10. The above structural design enables the driving gear 16 to utilize the meshing connection relationship to drive the driven gear 17 to rotate stably with the horizontal sleeve 18 when rotating, and the horizontal sleeve 18 utilizes the threaded connection relationship to drive the horizontal threaded rod 19 to move the movable plate frame 13 horizontally out or in along the installation window 12.

[0025] Working principle: When installing this device, turn Figure 2 The support frame 4 with the bottom bolt 5 slides horizontally along the track window 7 until the protection pad 9 is tightly fitted with the appropriate position of the bottom end of the outer wall of the exhaust pipe 2, and the locking nut 6 is screwed up to squeeze the bottom surface of the horizontal part of the support plate 3 to fix the positions of the support frame 4, the positioning plate 8 and the protection pad 9. The positioning plate 8 and the protection pad 9 stably support and position the exhaust pipe 2;

[0026] The exhaust gas is discharged from the exhaust pipe 2 into the adsorption box 10 and passes through Figure 4The activated carbon 14 is discharged from the discharge pipe 11 for subsequent harmless treatment. When the activated carbon 14 is adsorbed for a period of time, the distillation tower body 1 stops working, and the servo motor 15 is controlled to drive the driving gear 16 to rotate forward. The driving gear 16 drives the horizontal sleeve 18 to rotate through the driven gear 17. The horizontal sleeve 18 uses a threaded connection relationship to drive the horizontal threaded rod 19 to slide the movable plate frame 13 along the installation window 12 out of the adsorption box 10, and the activated carbon 14 is cleaned or replaced. After the operation is completed, the servo motor 15 is controlled to drive the driving gear 16 to rotate in the opposite direction. The driving gear 16 drives the horizontal sleeve 18 to rotate through the driven gear 17 to drive the horizontal threaded rod 19 to slide the movable plate frame 13 along the installation window 12 into the adsorption box 10 for reset, and the distillation tower body 1 can work again. This is the working principle of the distillation tower for preparing vinylene carbonate.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distillation tower for preparing vinylene carbonate, comprising a distillation tower body (1), characterized in that: An exhaust pipe (2) is installed at the top of the distillation tower body (1); a support plate (3) is fixed to one side of the top of the distillation tower body (1); a support frame (4) is arranged on the top surface of the support plate (3); a bottom bolt (5) is fixed to the edge of the bottom surface of the support frame (4); a locking nut (6) is installed at the bottom end of the bottom bolt (5); the bottom bolt (5) passes through a track window (7); the track window (7) is opened at the top edge of the support plate (3); a positioning plate (8) is fixed to the top of the support frame (4); a protective pad (9) is fixed to the inner wall of the positioning plate (8); the protective pad (9) is fitted with the exhaust pipe (2); the bottom end of the exhaust pipe (2) is connected to one side of the top surface of the adsorption box (10); a discharge pipe (11) is fixedly installed at the bottom of the other end of the adsorption box (10); the adsorption box (10) A mounting window (12) is provided on the front side of the adsorption box (10), a movable plate frame (13) is installed through the mounting window (12), activated carbon (14) is arranged in the movable plate frame (13), a servo motor (15) is fixed to the bottom of the inner side of the adsorption box (10), a driving gear (16) is fixed to the end of the output shaft of the servo motor (15), the top of the driving gear (16) is meshed with the bottom of the driven gear (17), the driven gear (17) is fixed to one end of the outer wall of a horizontal sleeve (18), the horizontal sleeve (18) is rotatably installed in a hole opened at the bottom of the adsorption box (10) through a bearing seat in the middle of the outer wall, the inner wall of the horizontal sleeve (18) is connected to one end of a horizontal threaded rod (19), and the horizontal threaded rod (19) passes through the hole opened at the bottom of the adsorption box (10).

2. A distillation tower for preparing vinylene carbonate according to claim 1, characterized in that: The centers of the support frame (4) and the support plate (3) are located on the same vertical plane, and the width of the vertical portion of the support frame (4) is greater than half the diameter of the exhaust pipe (2).

3. A distillation tower for preparing vinylene carbonate according to claim 1, characterized in that: The bottom bolts (5) are symmetrically distributed with respect to the support frame (4), and the bottom bolts (5) are tightly fitted to the inner wall of the track window (7).

4. A distillation tower for preparing vinylene carbonate according to claim 1, characterized in that: The thickness of the protection pad (9) is greater than half the thickness of the positioning plate (8), and the side view shape of the positioning plate (8) is a semi-circular ring.

5. A distillation tower for preparing vinylene carbonate according to claim 1, characterized in that: The movable panel frames (13) are snap-fittedly connected to the installation window (12), and the movable panel frames (13) are densely distributed at equal intervals.

6. A distillation tower for preparing vinylene carbonate according to claim 1, characterized in that: The centers of the driving gear (16), the driven gear (17), the horizontal sleeve (18) and the horizontal threaded rod (19) are located on the same vertical plane; the horizontal sleeve (18) and the horizontal threaded rod (19) are threadedly connected; and the length of the horizontal threaded rod (19) is greater than the width of the adsorption box (10).

Images