Tetrahydrofuran distillation device

Abstract

The utility model discloses a tetrahydrofuran distillation device, which belongs to the technical field of tetrahydrofuran and comprises a distillation tank body and a fixed plate, an electric heating plate is arranged on the inner bottom wall of the distillation tank body, the inner side wall of the fixed plate is fixedly connected with the distillation tank body, the top surface of the fixed plate is slidably connected with a moving rod through a through groove, and the bottom surface of the moving rod is fixedly connected with a mounting plate. Movable plates are welded to the two end faces of the movable rods, transmission rods are welded to the ends, away from the movable rods, of the movable plates, limiting bearings are in interference fit with the side faces of the transmission rods, and outer rings of the two limiting bearings are fixedly connected with the fixing plates in an embedded mode; an output shaft of the stirring motor is fixedly connected with a rotating rod through a bolt, and the side surface of the rotating rod is fixedly connected with a plurality of stirring plates, so that the tetrahydrofuran is uniformly heated by strengthening the stirring range of the tetrahydrofuran, and the distillation water removal effect of the tetrahydrofuran is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tetrahydrofuran, in particular to a tetrahydrofuran distillation device. Background Art

[0002] Tetrahydrofuran, also known as oxacyclopentane, is a colorless transparent liquid that is soluble in water. During use, tetrahydrofuran is often unusable due to excessive water content. A distillation device is required to remove the water in the tetrahydrofuran. When the distillation tank is heated and distilled for tetrahydrofuran, the stirring range is fixed, and the tetrahydrofuran in the distillation tank cannot be fully stirred and heated, resulting in uneven heating of the tetrahydrofuran, which reduces the distillation and water removal effect of the tetrahydrofuran.

[0003] Example (authorization announcement number is CN219595895U) A tetrahydrofuran distillation device includes a distillation tank, a connecting pipe is installed on the surface of the distillation tank, a storage box is installed at one end of the connecting pipe, a stirring mechanism is arranged inside the distillation tank, the stirring mechanism includes a first motor installed on the surface of the distillation tank, a rotating tooth is connected to the keyway of the output shaft of the first motor, a second gear is meshed on the surface of the rotating tooth, a scraper is installed on the surface of the hollow rod, and a connecting plate is installed on the surface of the distillation tank. The utility model provides a tetrahydrofuran distillation device, which is designed with a cooling mechanism. When the device is in use, tetrahydrofuran is first added into a distillation tank, and then the distillation tank starts to distill the tetrahydrofuran. After the distillation of the tetrahydrofuran is completed, it flows into a storage box through a connecting pipe. The rotation of a fan allows air in the storage box to circulate, so that operators are safer when handling the tetrahydrofuran, thereby improving the safety of the device. However, the device does not consider that when the distillation tank stirs and heats the tetrahydrofuran, the stirring position is fixed, and the tetrahydrofuran in the distillation tank cannot be fully stirred and heated, resulting in uneven heating of the tetrahydrofuran, thereby reducing the distillation and water removal effect of the tetrahydrofuran. Utility Model Content

[0004] The utility model aims to provide a tetrahydrofuran distillation device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tetrahydrofuran distillation device, comprising a distillation tank body with an electric heating plate on the inner bottom wall and a U-shaped inverted fixed plate, the inner side wall of the fixed plate is fixedly connected to the distillation tank body, the top surface of the fixed plate is slidably connected with a moving rod through an opened through groove, the bottom surface of the moving rod is fixedly connected with a mounting plate, the side surface of the mounting plate is movably connected with a movable rod through an opened through groove, the two end surfaces of the movable rod are welded with movable plates, a transmission rod is welded at one end of the movable plate away from the movable rod, a limit bearing is interference fit on the side surface of the transmission rod, the outer rings of the two limit bearings are embedded and fixedly connected with the fixed plate, a stirring motor is installed on the bottom surface of the mounting plate, the output shaft of the stirring motor is fixedly connected with a rotating rod through bolts, and a plurality of stirring plates are fixedly connected to the side surface of the rotating rod.

[0006] Preferably, the end surface of the rotating rod extends into the interior of the distillation tank body, and one end surface of the transmission rod is fixedly connected to the output shaft of the driving motor by bolts.

[0007] Preferably, the fixed end of the driving motor is installed on the side of the fixed plate, and a movable plate is welded to the bottom surface of the distillation tank body.

[0008] Preferably, a rubber frame is slidably connected to the side of the movable plate, and a hollow support plate is embedded and fixedly connected to the side of the rubber frame.

[0009] Preferably, a plurality of dampers are installed on the inner bottom wall of the support plate, and the movable ends of the plurality of dampers are fixedly connected to the limiting plate.

[0010] Preferably, the side surface of the limiting plate is slidably connected to the inner cavity of the supporting plate, and the top surface of the limiting plate is welded to the movable plate.

[0011] Preferably, movable blocks are welded to the two outer side walls of the fixed plate, and the top surface of the movable block is slidably connected to the limiting rod via a through groove.

[0012] Preferably, the bottom surfaces of the two limit rods are fixedly connected to the support plate, the top surfaces of the limit rods are fixedly connected to the limit blocks, and the top surface and the side surface of the distillation tank body are respectively provided with a feed inlet and an exhaust port.

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

[0014] The tetrahydrofuran distillation device is convenient for introducing tetrahydrofuran to be distilled into a distillation tank body through a provided feed inlet, heat is provided by an electric heating plate on the bottom wall of the distillation tank body, the tetrahydrofuran is heated, a stirring motor is started to make a plurality of stirring plates rotate with a rotating rod as a circle center, stirring the tetrahydrofuran is achieved, uniform heating of the tetrahydrofuran is achieved, and distillation and water removal effect of the tetrahydrofuran is improved, a driving motor is started to make the output shaft of the driving motor drive the transmission rod to rotate, the transmission rods and the movable rods provided on both sides of the movable plate are arranged in a staggered manner, so that the movable rods are convenient for relative rotation and movement along the inner cavity of the mounting plate, the provided movable rods fix the moving path of the mounting plate, and the longitudinal continuous reciprocating movement of the plurality of stirring plates is achieved during the transmission process, the stirring range is increased, and uniform heating of the tetrahydrofuran is achieved.

[0015] In the tetrahydrofuran distillation device, a plurality of dampers are provided to provide a buffering and shock absorbing effect, so as to prevent the distillation tank body from vibrating or tipping over when the distillation device is stirring and distilling tetrahydrofuran, so that the distillation tank body generates a force on the movable plate, and the connection provided by the limit plate facilitates the generation of a force on the movable ends of the plurality of dampers, so that the dampers work, and the buffering and shock absorbing effect on the distillation device is achieved during the transmission process, so as to prevent the distillation device from vibrating or tipping over. The limit plate is provided to move along the inner cavity of the support plate, and preliminarily fix the longitudinal movement stability of the distillation tank body. The movable block is provided to fix the moving path of the limit rod, so as to further improve the longitudinal movement stability of the distillation tank body. The limit block is provided to prevent the limit rod from being separated from the movable block during the movement, so as to improve the structural stability of the device parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the fixing plate of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the movable plate and the transmission rod of the utility model;

[0020] Figure 4 For the utility model Figure 1 A magnified view of the structure at center A;

[0021] Figure 5 It is a left side cross-sectional view of the movable plate and the supporting plate of the utility model.

[0022] Description of reference numerals:

[0023] In the figure: 1. distillation tank body; 2. fixed plate; 3. moving rod; 4. mounting plate; 5. movable rod; 6. movable plate; 7. transmission rod; 8. limit bearing; 9. stirring motor; 10. rotating rod; 11. stirring plate; 12. feeding port; 13. exhaust port; 14. moving plate; 15. rubber frame; 16. supporting plate; 17. limit plate; 18. damper; 19. limit rod; 20. movable block; 21. limit block; 22. driving motor. DETAILED DESCRIPTION

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0026] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0027] In order to solve the problem that the tetrahydrofuran distillation unit has a fixed stirring position for tetrahydrofuran, which causes uneven heating of tetrahydrofuran and reduces the distillation and water removal effect of the unit on tetrahydrofuran, please refer to Figures 1 to 5 The structure of the device body is as follows: a distillation tank body 1 with an electric heating plate on the inner bottom wall and a U-shaped inverted fixing plate 2; a feed inlet 12 and an exhaust port 13 are respectively installed on the top surface and the side surface of the distillation tank body 1; tetrahydrofuran is introduced into the distillation tank body 1 through the provided feed inlet 12; the tetrahydrofuran in the distillation tank body 1 is heated and distilled through the electric heating plate on the inner bottom wall of the distillation tank body 1; the tetrahydrofuran is heated to a specified temperature to achieve distillation and dehydration of the tetrahydrofuran; the evaporated steam of the tetrahydrofuran is introduced into external equipment such as a condensation box through the exhaust port 13 to achieve condensation of the tetrahydrofuran.

[0028] The inner wall of the fixed plate 2 is fixedly connected to the distillation tank body 1 to fix the position of the fixed plate 2. The top surface of the fixed plate 2 is slidably connected to the moving rod 3 through the opened through groove. The fixed plate 2 is set to fix the moving path of the moving rod 3. At the same time, the moving rod 3 has sufficient length to prevent the moving rod 3 from detaching from the fixed plate 2 during the moving range of the moving rod 3, thereby improving the structural stability of the device parts. The bottom surface of the moving rod 3 is fixedly connected to the mounting plate 4, thereby fixing the longitudinal moving path of the mounting plate 4. The side surface of the mounting plate 4 is movably connected to the movable rod 5 through the opened through groove, which is convenient for the movable rod 5 to rotate and move relative to each other along the inner cavity of the mounting plate 4. Movable plates 6 are welded to the two end surfaces of the movable rod 5, and a transmission rod 7 is welded to the end of the movable plate 6 away from the movable rod 5.

[0029] The transmission rod 7 welded on the two sides of the movable plate 6 is staggered with the movable rod 5, so that when the transmission rod 7 is rotated, the movable rod 5 can move in a circle with the transmission rod 7 as the center, so that the mounting plate 4 can move continuously in the longitudinal direction during the transmission process. The side of the transmission rod 7 is interference-fitted with a limited bearing 8, and the outer rings of the two limited bearings 8 are embedded and fixedly connected with the fixed plate 2. The set limited bearing 8 fixes the rotation position of the transmission rod 7. A stirring motor 9 is installed on the bottom surface of the mounting plate 4. The fixed end of the stirring motor 9 is detachably connected to the mounting plate 4 by bolts. The output shaft of the motor 9 is fixedly connected to the rotating rod 10 by bolts, and a plurality of stirring plates 11 are fixedly connected to the side of the rotating rod 10. The stirring motor 9 is provided to provide power, so that the output shaft of the stirring motor 9 drives the plurality of stirring plates 11 to rotate with the rotating rod 10 as the center during rotation, thereby stirring the tetrahydrofuran heated inside the distillation tank body 1, and at the same time facilitating the continuous longitudinal reciprocating movement of the plurality of stirring plates 11, thereby improving the stirring effect of the tetrahydrofuran, achieving uniform heating of the tetrahydrofuran, and further improving the distillation and water removal effect of the distillation device on the tetrahydrofuran.

[0030] The end face of the rotating rod 10 extends into the interior of the distillation tank body 1, and the connection between the rotating rod 10 and the distillation tank body 1 is sealed to prevent tetrahydrofuran vapor from overflowing through the connection gap, thereby improving the structural stability of the device parts. One end face of a transmission rod 7 is fixedly connected to the output shaft of a driving motor 22 by bolts, and the fixed end of the driving motor 22 is mounted on the side of the fixed plate 2. The fixed end of the driving motor 22 is detachably connected to the side of the fixed plate 2 by bolts. A moving plate 14 is welded to the bottom surface of the distillation tank body 1, and a rubber frame 15 is slidably connected to the side of the moving plate 14 to facilitate the relative longitudinal movement of the moving plate 14 and the rubber frame 15. An internal hollow support plate 16 is embedded and fixedly connected to the side of the rubber frame 15 to fix the position of the rubber frame 15. At the same time, the rubber frame 15 provides a sealing effect to prevent external debris from flowing into the inner cavity of the support plate 16, thereby improving the structural stability of the device parts. A plurality of dampers 18 are installed on the inner bottom wall of the support plate 16, and the fixed ends of the plurality of dampers 18 are detachably connected to the inner bottom wall of the support plate 16 by bolts.

[0031] The movable ends of the plurality of dampers 18 are fixedly connected to the limiting plate 17, and the side of the limiting plate 17 is slidably connected to the inner cavity of the support plate 16, and the longitudinal moving path of the limiting plate 17 is initially fixed. When the movable plate 14 moves downward, the bottom surface of the limiting plate 17 generates an extrusion force on the movable ends of the plurality of dampers 18, so that the plurality of dampers 18 work, and realize the buffering and shock absorption of the distillation tank body 1, and prevent the distillation tank body 1 from vibrating or tipping when the tetrahydrofuran is stirred. The top surface of the limiting plate 17 is welded to the movable plate 14, and the outer sides of the fixed plate 2 are A movable block 20 is welded to the wall, and the top surface of the movable block 20 is slidably connected to the limiting rod 19 through the opened through groove. The movable block 20 is set to fix the moving path of the limiting rod 19, thereby improving the longitudinal movement stability of the distillation tank body 1 during transmission and improving the structural stability of the device parts. The bottom surfaces of the two limiting rods 19 are fixedly connected to the support plate 16, and the top surface of the limiting rod 19 is fixedly connected to the limiting block 21. The limiting block 21 is set to prevent the limiting rod 19 from detaching from the movable block 20 during movement, thereby further improving the structural stability of the device parts.

[0032] The stirring motor 9, damper 18 and drive motor 22 are all prior art. The working principle, size and model are irrelevant to the function of the present application, so they will not be described in detail. The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0033] How it works

[0034] When using the tetrahydrofuran distillation device, a user introduces tetrahydrofuran into the distillation tank body 1 through the feed inlet 12, heats the tetrahydrofuran through the electric heating plate on the inner bottom wall of the distillation tank body 1, and realizes distillation and dehydration of the tetrahydrofuran. After heating to a specified temperature, the tetrahydrofuran vapor is introduced into the external equipment such as a condenser through the exhaust port 13, and the tetrahydrofuran after distillation and dehydration is collected. The stirring motor 9 is started, and the output shaft of the stirring motor 9 drives a plurality of stirring plates 11 to rotate with the rotating rod 10 as the center of the circle during the rotation process, so as to realize stirring of the tetrahydrofuran, thereby realizing uniform heating of the tetrahydrofuran. At the same time, the driving motor 22 is started, and the output shaft of the driving motor 22 drives the transmission rod 7 to rotate during the rotation process. At the same time, the transmission rod 7 welded on both sides of the movable plate 6 is staggered with the movable rod 5, and the plurality of stirring plates 11 are continuously reciprocated longitudinally during the transmission process, so as to increase the stirring range of the tetrahydrofuran, realize uniform heating of the tetrahydrofuran, and improve the distillation and dehydration effect of the distillation device on the tetrahydrofuran.

[0035] The fixed plate 2 is set to fix the moving path of the moving rod 3, and the limit bearing 8 is set to fix the rotation position of the transmission rod 7, thereby improving the structural stability of the device parts. When the distillation tank body 1 vibrates, the connection provided by the moving plate 14 and the limit plate 17 generates a force on the moving ends of the plurality of dampers 18, so that the plurality of dampers 18 work, thereby realizing the buffering and shock absorption of the distillation device, and the limit plate 17 moves along the inner cavity of the support plate 16 to preliminarily fix the longitudinal moving path of the distillation tank body 1. The movable block 20 is set to fix the moving path of the limit rod 19, and the moving path of the distillation tank body 1 is further fixed during the transmission process. At the same time, the limit block 21 is set to prevent the limit rod 19 from separating from the movable block 20 during the movement, thereby improving the structural stability of the device parts, thereby strengthening the buffering and shock absorption effect of the plurality of dampers 18 on the distillation tank body 1, and preventing the distillation device from vibrating or tipping over.

[0036] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0037] 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 tetrahydrofuran distillation device, comprising a distillation tank body (1) with an electric heating plate on the inner bottom wall and a U-shaped inverted fixing plate (2), characterized in that: The inner wall of the fixed plate (2) is fixedly connected to the distillation tank body (1); the top surface of the fixed plate (2) is slidably connected to a moving rod (3) via a through groove; the bottom surface of the moving rod (3) is fixedly connected to a mounting plate (4); the side surface of the mounting plate (4) is movably connected to a moving rod (5) via a through groove; and moving plates (6) are welded to both end surfaces of the moving rod (5); A transmission rod (7) is welded to one end of the movable plate (6) away from the movable rod (5); a limit bearing (8) is interference-fitted on the side of the transmission rod (7); the outer rings of the two limit bearings (8) are embedded and fixedly connected to the fixed plate (2); a stirring motor (9) is installed on the bottom surface of the mounting plate (4); the output shaft of the stirring motor (9) is fixedly connected to a rotating rod (10) by bolts; and a plurality of stirring plates (11) are fixedly connected to the side of the rotating rod (10).

2. A tetrahydrofuran distillation apparatus according to claim 1, characterized in that: The end surface of the rotating rod (10) extends into the interior of the distillation tank body (1), and the end surface of one of the transmission rods (7) is fixedly connected to the output shaft of the driving motor (22) by means of bolts.

3. A tetrahydrofuran distillation apparatus according to claim 2, characterized in that: The fixed end of the driving motor (22) is mounted on the side of the fixed plate (2), and a movable plate (14) is welded to the bottom surface of the distillation tank body (1).

4. A tetrahydrofuran distillation apparatus according to claim 3, characterized in that: The side of the movable plate (14) is slidably connected to a rubber frame (15), and the side of the rubber frame (15) is embedded and fixedly connected to an internally hollow support plate (16).

5. A tetrahydrofuran distillation apparatus according to claim 4, characterized in that: A plurality of dampers (18) are installed on the inner bottom wall of the support plate (16), and the movable ends of the plurality of dampers (18) are fixedly connected to the limiting plate (17).

6. A tetrahydrofuran distillation apparatus according to claim 5, characterized in that: The side surface of the limiting plate (17) is slidably connected to the inner cavity of the supporting plate (16), and the top surface of the limiting plate (17) is welded to the movable plate (14).

7. A tetrahydrofuran distillation apparatus according to claim 6, characterized in that: Movable blocks (20) are welded to the two outer side walls of the fixed plate (2), and the top surface of the movable block (20) is slidably connected to the limit rod (19) via a through slot.

8. A tetrahydrofuran distillation apparatus according to claim 7, characterized in that: The bottom surfaces of the two limiting rods (19) are fixedly connected to the support plate (16), the top surfaces of the limiting rods (19) are fixedly connected to the limiting blocks (21), and the top surface and the side surfaces of the distillation tank body (1) are respectively provided with a feed inlet (12) and an exhaust port (13).

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