Continuous unsaturated monomer polymerization inhibition structure

Abstract

The utility model discloses a continuous unsaturated monomer polymerization inhibition structure, relates to the technical field of rectification polymerization inhibition, and solves the problem that polymerization phenomena are frequent due to a small addition amount of a polymerization inhibitor because the polymerization inhibitor is added into the top of a rectification tower in a manner that the polymerization inhibitor is independently led into the top of the rectification tower. A supporting plate is fixedly mounted on the right side wall of the top of the rectifying tower, the return tank is fixedly mounted at the upper end of the supporting plate, a feeding pipe and a return pipe are fixedly mounted in the right side wall and the left side wall of the return tank respectively, the left end of the return pipe is fixedly connected into the rectifying tower, and a connecting pipe is fixedly mounted at the upper end of the return tank. A polymerization inhibitor is added to the tower top backflow pipe, and the backflow amount is far larger than the amount of the polymerization inhibitor, so that the polymerization inhibitor entering the tower top backflow pipe is distributed more evenly, the polymerization inhibition effect is achieved to the maximum extent, and the polymerization phenomenon is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation inhibition, in particular to a continuous unsaturated monomer inhibition structure. Background Art

[0002] During distillation, the generated reflux will enter the interior of the reflux pipe, and the reflux tank will inhibit the refluxed unsaturated monomers to prevent them from polymerizing and causing damage to the device.

[0003] Currently, the greatest challenge in vacuum distillation of unsaturated monomers is polymerization inhibition, which leads to a vicious cycle of safety accidents, severe economic losses, and increased labor intensity. Traditionally, polymerization inhibitors are added through a separate pipeline to the top of the distillation tower. However, even with small amounts of inhibitor added, polymerization still occurs frequently. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a continuous unsaturated monomer inhibition structure, which solves the problem that polymerization occurs frequently due to the small amount of inhibitor added when the inhibitor is added through a separate pipeline into the top of the distillation tower.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a continuous unsaturated monomer inhibition structure, including a distillation tower and a reflux tank, the right side wall of the top of the distillation tower is fixedly installed with a support plate, the reflux tank is fixedly installed on the upper end of the support plate, the right side wall and the left side wall of the reflux tank are respectively fixedly installed with a feed pipe and a return pipe, and the left end of the return pipe is fixedly connected to the interior of the distillation tower, the upper end of the reflux tank is fixedly installed with a connecting pipe, the upper end of the connecting pipe is fixedly installed with a conical bucket, the lower end of the support plate is fixedly installed with a first rotating motor, the output shaft of the first rotating motor is connected to the bottom surface of the reflux tank by passing through the interior of the support plate, the bottom surface of the reflux tank is rotatably connected with a rotating rod, and the rod wall of the rotating rod is fixedly installed with a first stirring rod at equal intervals.

[0006] Preferably, a U-shaped frame is fixedly installed on the upper end of the conical bucket, and a second rotating motor is fixedly installed on the upper end of the U-shaped frame. A spiral rod is rotatably connected to the top surface of the U-shaped frame, and the output shaft of the second rotating motor is fixedly connected to the upper end of the spiral rod by passing through the interior of the U-shaped frame. The spiral rod is arranged inside the conical bucket, and the lower end enters the interior of the connecting pipe by passing through the interior of the conical bucket, thereby facilitating the internal inhibitor to enter the interior of the reflux tank.

[0007] Preferably, a plurality of second stirring rods are fixedly installed at equal intervals on the rod wall below the rotating rod, and the bottom surface of the second stirring rod is slidably connected to the bottom surface of the reflux tank, thereby preventing the reacting materials inside from adhering to the bottom surface of the reflux tank and forming accumulation.

[0008] Preferably, a hardware film is fixedly installed on the upper part of the connecting pipe, and the spiral rod passes through the interior of the hardware film, so that when there is no need to add the polymerization inhibitor, the sealing between the connecting pipe and the threaded rod can be strengthened by the hardware film.

[0009] Preferably, a connecting plate is fixedly installed between the reflux tank and the distillation tower, thereby enhancing the stability of the position of the reflux tank.

[0010] The utility model provides a continuous unsaturated monomer inhibition structure, which has the following beneficial effects:

[0011] 1. This continuous unsaturated monomer polymerization inhibition structure, when using the continuous unsaturated monomer polymerization inhibition structure, the polymerization inhibitor is added to the reflux pipe at the top of the tower. The reflux amount is much larger than the polymerization inhibitor amount, so that the distribution of the entering polymerization inhibitor is more uniform, the polymerization inhibition effect is maximized, and the occurrence of polymerization is greatly reduced;

[0012] 2. When using the continuous unsaturated monomer inhibition structure, the inhibitor can be conveniently fed into the interior of the reflux tank through the provided spiral rod, thereby improving the inhibition effect on the unsaturated monomer. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a side view of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the return pipe of the utility model;

[0016] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of part A.

[0017] In the figure, 1-distillation tank, 2-support plate, 3-return pipe, 4-reflux tank, 5-first rotating motor, 6-connecting plate, 7-feed pipe, 8-connecting pipe, 9-conical bucket, 10-U-shaped frame, 11-screw rod, 12-second rotating motor, 13-rotating rod, 14-first stirring rod, 15-second stirring rod, 16-hardware film. DETAILED DESCRIPTION

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

[0019] Example 1

[0020] See also Figure 1-4 The embodiment of the present invention provides a continuous unsaturated monomer inhibition structure, including a distillation tower 1 and a reflux tank 4. The right side wall of the top of the distillation tower 1 is fixedly installed with a support plate 2, and the reflux tank 4 is fixedly installed on the upper end of the support plate 2. A feed pipe 7 and a return pipe 3 are fixedly installed inside the right side wall and the left side wall of the reflux tank 4 respectively, and the left end of the return pipe 3 is fixedly connected to the inside of the distillation tower 1. A connecting pipe 8 is fixedly installed on the upper end of the reflux tank 4, and a conical bucket 9 is fixedly installed on the upper end of the connecting pipe 8. A first rotating motor 5 is fixedly installed on the lower end of the support plate 2, and the output shaft of the first rotating motor 5 is connected to the bottom surface of the reflux tank 4 by passing through the inside of the support plate 2. The bottom surface of the reflux tank 4 is rotatably connected with a rotating rod 13, and the rod wall of the rotating rod 13 is fixedly installed with a first stirring rod 14 at equal intervals. A plurality of second stirring rods 15 are fixedly installed with equal intervals on the rod wall below the rotating rod 13. The bottom surface of the second stirring rod 15 is slidably connected to the bottom surface of the reflux tank 4. A connecting plate 6 is fixedly installed between the reflux tank 4 and the distillation tower 1. The polymerization inhibitor enters the interior of the reflux tank 4 through the conical bucket 9 and the interior of the connecting pipe 8. At the same time, the first rotating motor 5 is turned on to make the rotating rod 13 drive the first stirring rod 14 to rotate, so that the placement of the polymerization inhibitor is evenly arranged, so that the efficiency of the reaction between the unsaturated monomer entering the reflux tank 4 through the feed pipe 7 and the polymerization inhibitor is improved.

[0021] Example 2

[0022] In order to facilitate the uniform distribution of the polymerization inhibitor entering the reflux tank 4, in this embodiment, Figure 2-4As shown, a U-shaped frame 10 is fixedly installed on the upper end of the conical bucket 9, and a second rotating motor 12 is fixedly installed on the upper end of the U-shaped frame 10. A screw rod 11 is rotatably connected to the top surface of the U-shaped frame 10, and the output shaft of the second rotating motor 12 is fixedly connected to the upper end of the screw rod 11 by passing through the interior of the U-shaped frame 10. The screw rod 11 is arranged in the interior of the conical bucket 9, and the lower end enters the interior of the connecting pipe 8 by passing through the interior of the conical bucket 9. A hardware film 16 is fixedly installed above the connecting pipe 8, and the screw rod 11 passes through the interior of the hardware film 16. A connecting plate 6 is fixedly installed between the reflux tank 4 and the distillation tower 1. The second rotating motor 12 is turned on, so that the inhibitor placed in the conical bucket 9 can easily enter the interior of the connecting pipe 8 through the screw rod 11, and enter the interior of the reflux tank 4 through the interior of the connecting pipe 8.

[0023] It should be noted that, in this embodiment, when using a continuous unsaturated monomer inhibition structure, such as Figure 1-4 As shown, the polymerization inhibitor is placed inside the conical bucket 9, and the unsaturated monomer enters the reflux tank 4 through the feed pipe 7. At the same time, the second rotary motor 12 is turned on, so that the polymerization inhibitor placed in the conical bucket 9 can easily enter the inside of the connecting pipe 8 through the screw rod 11, and enter the inside of the reflux tank 4 through the inside of the connecting pipe 8. The first rotary motor 5 is turned on, and the rotating rod 13 drives the first stirring rod 14 to rotate, so that the placement of the polymerization inhibitor is evenly arranged, and the efficiency of the reaction between the unsaturated monomer entering the reflux tank 4 through the feed pipe 7 and the polymerization inhibitor is improved, and the second stirring rod 15 can scrape the bottom surface of the reflux tank 4 to prevent crystals from adhering to the bottom surface of the reflux tank 4. The device improves the efficiency of polymerization inhibition, reduces the occurrence of polymerization, and improves the use efficiency of the device.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0025] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A continuous unsaturated monomer inhibition structure, characterized in that: The invention comprises a distillation tower (1) and a reflux tank (4), wherein a support plate (2) is fixedly installed on the right side wall of the top of the distillation tower (1), and the reflux tank (4) is fixedly installed on the upper end of the support plate (2). A feed pipe (7) and a return pipe (3) are fixedly installed inside the right side wall and the left side wall of the reflux tank (4), respectively, and the left end of the return pipe (3) is fixedly connected to the inside of the distillation tower (1). A connecting pipe (8) is fixedly installed on the upper end of the reflux tank (4), and a conical bucket (9) is fixedly installed on the upper end of the connecting pipe (8). A first rotating motor (5) is fixedly installed on the lower end of the support plate (2), and the output shaft of the first rotating motor (5) is connected to the bottom surface of the reflux tank (4) by passing through the inside of the support plate (2). A rotating rod (13) is rotatably connected to the bottom surface of the reflux tank (4), and a first stirring rod (14) is fixedly installed on the rod wall of the rotating rod (13) at equal intervals.

2. The continuous unsaturated monomer inhibition structure according to claim 1, characterized in that: A U-shaped frame (10) is fixedly mounted on the upper end of the conical bucket (9), a second rotating motor (12) is fixedly mounted on the upper end of the U-shaped frame (10), a screw rod (11) is rotatably connected to the top surface of the U-shaped frame (10), an output shaft of the second rotating motor (12) is fixedly connected to the upper end of the screw rod (11) by passing through the interior of the U-shaped frame (10), the screw rod (11) is arranged inside the conical bucket (9), and the lower end of the screw rod (11) passes through the interior of the conical bucket (9) and enters the interior of the connecting pipe (8).

3. The continuous unsaturated monomer inhibition structure according to claim 1, characterized in that: A plurality of second stirring rods (15) are fixedly mounted at equal intervals on the rod wall below the rotating rod (13), and the bottom surfaces of the second stirring rods (15) are slidably connected to the bottom surface of the reflux tank (4).

4. The continuous unsaturated monomer inhibition structure according to claim 2, characterized in that: A hardware film (16) is fixedly installed on the upper part of the connecting pipe (8), and the spiral rod (11) passes through the interior of the hardware film (16).

5. The continuous unsaturated monomer inhibition structure according to claim 1, characterized in that: A connecting plate (6) is fixedly installed between the reflux tank (4) and the distillation tower (1).

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