Chemical raw material distillation tower

Abstract

The utility model discloses a chemical raw material distillation tower which comprises a distillation tower body, a tower tray is arranged in the distillation tower body, and a steam outlet, a return pipe, a liquid inlet, a steam inlet and a liquid outlet are sequentially arranged on the outer side face of the distillation tower body from top to bottom in a penetrating mode. According to the distillation tower disclosed by the utility model, the distillation tower adopts a split structure, the screw rod is driven by the driving motor, the thread bushing is promoted to move upwards under the action of the screw rod and the thread bushing, the thread bushing is connected with the top tower body through the rotating shaft so as to drive the top tower body to move upwards, and meanwhile, the transmission rod is in cross connection through the connecting shaft; the top tower body and the middle tower bodies and the middle tower bodies are synchronously separated by a certain distance in the upward moving process of the top tower body, so that the interiors of the top tower body and the middle tower bodies are conveniently overhauled by workers, and the use convenience of the device is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of distillation tower technology, and more specifically, to a chemical raw material distillation tower. Background Technology

[0002] Distillation towers are currently a common type of separation and purification equipment. They are mainly separated by gas-liquid contact and by the different volatility of each component. Distillation towers are usually quite tall, and maintenance personnel often need to go to the top of the tower for maintenance.

[0003] To facilitate flexible installation, existing distillation columns are often composed of multiple sections, which are welded together to form a complete distillation column. However, because the columns are welded together, it is very difficult to repair or replace the internal components later.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To address the issues raised in the appeal, this utility model provides a chemical raw material distillation tower, thereby resolving the problems mentioned in the background art.

[0006] To address the aforementioned problems, the specific technical solution adopted by this utility model is as follows:

[0007] A chemical raw material distillation column includes a distillation column body. The interior of the distillation column body is provided with trays, and the outer surface of the distillation column body is sequentially provided with a steam outlet, a reflux pipe, a liquid inlet, a steam inlet, and a liquid outlet from top to bottom. The distillation column body is composed of a top column body, a middle column body, and a bottom column body. The middle column body is located below the top column body, and the bottom column body is welded below the middle column body. A fixing ring is provided on the outer surface of the bottom column body, and a U-shaped frame is provided on the upper surface of the fixing ring. A lead screw is provided between the U-shaped frame and the fixing ring, and the end of the lead screw is connected to a drive motor via a coupling. A threaded sleeve is threaded onto the surface of the lead screw, and a guide strip is provided on the outer surface of the threaded sleeve. A guide groove for use with the guide strip is formed on the inner surface of the U-shaped frame. A transmission rod passes through the side surface of the threaded sleeve and is connected to the top column body via a rotating shaft. Adjacent transmission rods are connected via a connecting shaft, and the end of the connecting shaft is movably connected to the middle column body.

[0008] Furthermore, the central tower body is composed of multiple sub-towers, which are arranged vertically. Each sub-tower has a sealing ring on its upper surface and a corresponding threaded annular groove on its upper surface.

[0009] Furthermore, the side surface of the sub-tower is provided with an observation window.

[0010] Furthermore, multiple trays are provided, with one tray installed inside each of the sub-towers.

[0011] Furthermore, a skirt is provided on the lower surface of the distillation column body, and a bottom ring is provided on the outer side of the skirt, with a through mounting hole on the surface of the bottom ring.

[0012] Furthermore, a control button is provided on the side surface of the skirt, and the control button is connected to the drive motor via a wire.

[0013] Compared with the prior art, the present invention provides a chemical raw material distillation tower with the following advantages:

[0014] (1) In this utility model, the distillation column adopts a split structure. The drive motor drives the lead screw, and under the action of the lead screw and the threaded sleeve, the threaded sleeve moves upward. Since the threaded sleeve is connected to the top column body through the rotating shaft, it drives the top column body to move upward. At the same time, the transmission rod is cross-connected through the connecting shaft and is connected to the rotating shaft of the middle column body and the top column body. When the top column body moves upward, the top column body and the middle column body will be separated synchronously, so that they are separated from each other by a certain distance, so that the staff can inspect the inside, which greatly improves the convenience of the device.

[0015] (2) The present invention has a sealing ring threaded on the upper surface of the side wall of the column. On the one hand, it is convenient to replace the damaged sealing ring. On the other hand, the sealing ring can increase the sealing between the top column and the middle column and between the middle column, so as to avoid steam leakage and affect the distillation effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a chemical raw material distillation tower proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the lead screw connection structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the split tower of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure of the transmission rod of this utility model.

[0022] In the picture:

[0023] 1. Distillation column body; 2. Top column body; 3. Middle column body; 4. Bottom column body; 5. Skirt; 6. Liquid outlet; 7. Steam inlet; 8. Liquid inlet; 9. Reflux pipe; 10. Steam outlet; 11. Tray; 12. Bottom ring; 13. Threaded annular groove; 14. Sealing ring; 15. Divider column; 16. C-shaped frame; 17. Lead screw; 18. Fixing ring; 19. Drive motor; 20. Transmission rod; 21. Connecting shaft; 22. Threaded sleeve; 23. Observation window; 24. Control button. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a chemical raw material distillation tower is provided.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-5 As shown, a chemical raw material distillation column according to an embodiment of the present invention includes a distillation column body 1. A tray 11 is disposed inside the distillation column body 1, and a steam outlet 10, a reflux pipe 9, a liquid inlet 8, a steam inlet 7, and a liquid outlet 6 are sequentially arranged from top to bottom on the outer side of the distillation column body 1. The distillation column body 1 is composed of a top column body 2, a middle column body 3, and a bottom column body 4. The middle column body 3 is disposed below the top column body 2, and the bottom column body 4 is welded below the middle column body 3. A fixing ring 18 is disposed on the outer side of the bottom column body 4. The upper surface is provided with a C-shaped frame 16, and a lead screw 17 is provided between the C-shaped frame 16 and the fixed ring 18. The end of the lead screw 17 is connected to a drive motor 19 through a coupling. A threaded sleeve 22 is threadedly connected to the surface of the lead screw 17. A guide strip is provided on the outer side of the threaded sleeve 22, and a guide groove for use with the guide strip is opened on the inner side of the C-shaped frame 16. The side surface of the threaded sleeve 22 passes through the transmission rod 20 through the rotating shaft and is connected to the top tower body 2. The adjacent transmission rods 20 are connected through the connecting shaft 21, and the end of the connecting shaft 21 is movably connected to the middle tower body 3.

[0027] In one embodiment, the distillation column adopts a split structure. The drive motor 19 drives the lead screw 17. Under the action of the lead screw 17 and the threaded sleeve 22, the threaded sleeve 22 is moved upward. Since the threaded sleeve 22 is connected to the top column body 2 through the rotating shaft, it drives the top column body 2 to move upward. At the same time, the transmission rod 20 is cross-connected through the connecting shaft 21 and is connected to the rotating shaft of the middle column body 3 and the top column body 2. When the top column body 2 moves upward, the top column body 2 and the middle column body 3 will be separated synchronously, so that they are separated by a certain distance, so that the staff can inspect the inside, which greatly improves the ease of use of the device.

[0028] Specifically, the central tower body 3 is composed of multiple sub-towers 15, which are arranged vertically. Each sub-tower 15 has a sealing ring 14 on its upper surface and a threaded annular groove 13 corresponding to the sealing ring 14 on its upper surface.

[0029] In one embodiment, a sealing ring 14 is threaded onto the upper surface of the side wall of the sub-tower 15. This facilitates the replacement of damaged sealing rings 14 and increases the sealing between the top tower body 2 and the middle tower body 3, as well as between the middle tower body 3, preventing steam leakage and affecting the distillation effect.

[0030] Specifically, observation windows 23 are provided on the side surface of the sub-tower 15.

[0031] In one embodiment, the observation window 23 facilitates the observation of the internal production process of the distillation column body 1.

[0032] Specifically, there are multiple trays 11, with one tray 11 installed inside each sub-tower 15.

[0033] In one embodiment, the gas and liquid phases have good contact conditions, which facilitates the mass and heat transfer process.

[0034] Specifically, a skirt 5 is provided on the lower surface of the distillation column body 1, and a bottom ring 12 is provided on the outer side of the skirt 5, with a through mounting hole on the surface of the bottom ring 12.

[0035] In one embodiment, the overall height of the distillation column body 1 is increased to discharge the chemical raw material liquid from the liquid outlet 6.

[0036] Specifically, a control button 24 is provided on the side surface of the skirt 5, and the control button 24 is connected to the drive motor 19 via a wire.

[0037] In one embodiment, the drive motor 19 is controlled using the control button 24.

[0038] Working principle: The distillation column adopts a split structure. A drive motor 19 drives a lead screw 17, which, under the action of the lead screw 17 and the threaded sleeve 22, causes the threaded sleeve 22 to move upward. Since the threaded sleeve 22 is connected to the top column body 2 via a rotating shaft, it also drives the top column body 2 to move upward. Simultaneously, the transmission rod 20 is cross-connected via a connecting shaft 21, and is connected to the rotating shafts of the middle column body 3 and the top column body 2. During the upward movement of the top column body 2, the top column body 2, the middle column body 3, and the middle column body 3 are simultaneously separated, creating a certain distance between them for easy internal maintenance by personnel, greatly improving the ease of use of the device. A sealing ring 14 is threaded onto the upper surface of the side wall of the split column 15. This facilitates the replacement of damaged sealing rings 14 and increases the sealing between the top column body 2 and the middle column body 3, preventing steam leakage and affecting the distillation effect.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

Claims

1. A chemical feedstock distillation column comprising a distillation column body (1), characterized by, The inside of the distillation tower body (1) is provided with a tray (11), and the outer side of the distillation tower body (1) is sequentially provided with a steam outlet (10), a reflux pipe (9), a liquid inlet (8), a steam inlet (7) and a liquid outlet (6) from top to bottom, the distillation tower body (1) is composed of a top tower body (2), a middle tower body (3) and a bottom tower body (4), the middle tower body (3) is arranged below the top tower body (2), the bottom tower body (4) is welded below the middle tower body (3), the outer side of the bottom tower body (4) is provided with a fixing ring (18), and the upper surface of the fixing ring (18) is provided with a D-shaped frame (16), a lead screw (17) is arranged between the D-shaped frame (16) and the fixing ring (18), and the end of the lead screw (17) is connected with a driving motor (19) through a shaft coupling, a threaded sleeve (22) is threadedly connected to the surface of the lead screw (17), the outer side of the threaded sleeve (22) is provided with a guide strip, and the inner side of the D-shaped frame (16) is provided with a guide groove matched with the guide strip, the side surface of the threaded sleeve (22) is connected with the top tower body (2) through a rotating shaft penetrating a transmission rod (20), adjacent transmission rods (20) are connected through a connecting shaft (21), and the end of the connecting shaft (21) is movably connected with the middle tower body (3).

2. A chemical feedstock distillation column according to claim 1, wherein, The middle tower body (3) is composed of a plurality of sub-towers (15), and the plurality of sub-towers (15) are arranged in an up-down direction, the upper surface of the sub-tower (15) is provided with a sealing ring (14), and the upper surface of the sub-tower (15) is provided with a threaded annular groove (13) corresponding to the sealing ring (14).

3. A chemical feedstock distillation column according to claim 2, wherein, The side surface of the sub-tower (15) is provided with an observation window (23).

4. A chemical feedstock distillation column according to claim 3, wherein, The tray (11) is provided with a plurality of trays (11), and one tray (11) is arranged in one sub-tower (15).

5. A chemical feedstock distillation column according to claim 4, wherein, The lower surface of the distillation tower body (1) is provided with a skirt (5), the outer side of the skirt (5) is provided with a bottom ring (12), and the surface of the bottom ring (12) is provided with a mounting hole.

6. A chemical feedstock distillation column according to claim 5, wherein, The side surface of the skirt (5) is provided with a control button (24), and the control button (24) is connected with the driving motor (19) through a wire.

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