Distillation kettle for preparing hydroxyethyl acrylate

Abstract

The utility model relates to the technical field of hydroxyethyl acrylate production, and provides a distillation still for hydroxyethyl acrylate preparation, which comprises a distillation still body, a support frame is fixedly mounted at the bottom of the distillation still body, and a sealing cover is fixedly mounted at the upper end of the distillation still body. A fixed top frame and a fixed bottom frame are fixedly mounted on the inner wall of the distillation kettle body, a rotating column is arranged between the fixed top frame and the fixed bottom frame, a movable groove is formed in the rotating column, and the bottom of the movable groove extends to the bottom of the rotating column; through the unique structural design, the stirring branch rods can be used for stirring from different angles while the stirring rods are used for stirring, so that the stirring efficiency is effectively improved, the distillation efficiency is further improved, and meanwhile, the distillation efficiency is improved. And the first driving mechanism and the rotating column are detachably designed, so that a worker can conveniently disassemble and assemble the sealing cover.

Description

TECHNICAL FIELD

[0001] The utility model relates to acrylic acid hydroxyethyl ester production technical field, concretely is acrylic acid hydroxyethyl ester preparation distillation kettle. BACKGROUND

[0002] Acrylic acid hydroxyethyl ester is colorless liquid, and the copolymer can be used as fiber treating agent, thermosetting coating, high adhesive strength adhesive, rubber (such as acrylic acid copolymer rubber) with heat resistance and oil resistance, paper processing agent, lubricating oil additive, the copolymer with acrylamide can be used as thickening agent, the copolymer with vinyl ether can be used as floor wax substitute, the copolymer with divinyl benzene can be used as ion exchange resin etc.

[0003] Acrylic acid hydroxyethyl ester needs to pass through distillation process in the preparation process, in order to improve the efficiency of distillation, the existing distillation kettle is equipped with stirring structure, the mixing of finished product and semi-finished product and byproduct is more uniform through stirring structure, and the distillation efficiency of solution can be improved. The existing stirring structure is usually driven by motor rotation shaft, and the rotation shaft drives stirring rod to rotate, and the stirring rod can only stir the mixed liquid in the limited angle and range, and the stirring effect has the space of promotion. SUMMARY

[0004] The utility model discloses acrylic acid hydroxyethyl ester preparation distillation kettle to solve the problem in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: acrylic acid hydroxyethyl ester preparation distillation kettle, including distillation kettle body, the bottom fixed mounting of distillation kettle body is equipped with support frame, the upper end fixed mounting of distillation kettle body is equipped with sealing cover, the inner wall of distillation kettle body is fixedly installed with fixed top frame and fixed bottom frame, be provided with rotary column between fixed top frame and fixed bottom frame, the inside of rotary column is opened with movable slot, the bottom of movable slot extends to the bottom of rotary column, the bottom of rotary column is rotatably connected in the annular groove of opening in the upper end of fixed bottom frame, the upper end of rotary column penetrates fixed top frame, fixed top frame is rotatably connected with rotary column, the sealing cover is provided with the first drive mechanism of acting on rotary column, the outer wall of rotary column is rotatably installed with a plurality of stirring rods, a plurality of stirring sub rods are fixedly installed on the outer wall of stirring rod, the end of stirring rod close to rotary column extends to the inside of movable slot, movable slot is provided with the second drive mechanism of acting on stirring rod.

[0006] As the further preferred of the technical scheme, the rotary column is located at the axis of the distillation kettle body.

[0007] As the further preferred of the technical scheme, a plurality of the stirring rods are divided into three groups, and each group of the stirring rods is arranged in a ring shape.

[0008] As a further preferred of the technical solution, the first driving mechanism is composed of a motor, a rotating shaft and a cross plate, the motor is fixedly installed at the upper end of the sealing cover, the rotating shaft is rotatably connected at the bottom of the sealing cover, the output shaft of the motor is fixedly connected at the upper end of the rotating shaft, the cross plate is fixedly installed at the bottom of the rotating shaft, and the upper end of the rotating column is provided with a cross groove, and the cross plate and the cross groove are matched with each other.

[0009] As a further preferred of the technical solution, the second driving mechanism is composed of a fixed shaft, a driving bevel gear and a driven bevel gear, the fixed shaft is located in the inner part of the movable groove, the fixed shaft is fixedly connected at the upper end of the fixed base, the upper end of the fixed shaft is rotatably connected on the inner cavity top wall of the movable groove, three driving bevel gears are fixedly sleeved on the outer wall of the fixed shaft, the three driving bevel gears correspond to the three groups of stirring rods one by one, the driven bevel gear is fixedly connected at the end of the stirring rod close to the driving bevel gear, and the driving bevel gear and the driven bevel gear are meshed with each other.

[0010] As a further preferred of the technical solution, two reinforcing rings are fixedly sleeved on the outer wall of the distillation kettle body.

[0011] As a further preferred of the technical solution, the side wall of the distillation kettle body is fixedly installed with a feeding pipe in communication with the inside of the distillation kettle body, the bottom of the distillation kettle body is fixedly installed with a discharge pipe in communication with the inside of the distillation kettle body, and the upper end of the sealing cover is fixedly installed with a steam outlet pipe in communication with the inside of the distillation kettle body.

[0012] The distillation kettle for preparing hydroxyethyl acrylate has the following beneficial effects:

[0013] The unique structure design of the utility model makes the stirring rod stir while the stirring sub-rod can stir from different angles, thereby effectively improving the stirring efficiency and the distillation efficiency, and meanwhile, the detachable design between the first driving mechanism and the rotating column can facilitate the staff to disassemble and assemble the sealing cover. ACCURACY OF DRAWINGS

[0014] Figure 1 It is a schematic view of the overall structure of the utility model;

[0015] Figure 2 It is a split schematic view of the overall structure of the utility model;

[0016] Figure 3 It is a split schematic view of the overall structure of the utility model from another perspective;

[0017] Figure 4 It is a structure schematic view of the rotating column and the stirring rod in the utility model;

[0018] Figure 5 It is a section view of the rotating column in the utility model;

[0019] Figure 6 It is a part structure schematic view of the utility model; Figure 5

[0020] In the figure: 1, distillation still body; 2, support frame; 3, sealing cover; 4, feed pipe; 5, steam pipe; 6, discharge pipe; 7, motor; 8, fixed top frame; 9, rotating column; 10, cross slot; 11, rotating shaft; 12, cross plate; 13, fixed bottom frame; 14, stirring rod; 15, stirring sub-rod; 16, fixed shaft; 17, movable slot; 18, driving bevel gear; 19, driven bevel gear; 20, reinforcing ring. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0022] The utility model provides technical scheme: as Figures 1 to 6 shown, in the embodiment, the distillation still for preparing hydroxyethyl acrylate, including distillation still body 1, the bottom of distillation still body 1 is fixedly installed with support frame 2, the upper end of distillation still body 1 is fixedly installed with sealing cover 3, the inner wall of distillation still body 1 is fixedly installed with fixed top frame 8 and fixed bottom frame 13, rotating column 9 is arranged between fixed top frame 8 and fixed bottom frame 13, rotating column 9 is located at the axis of distillation still body 1, movable slot 17 is formed in the inside of rotating column 9, the bottom of movable slot 17 extends to the bottom of rotating column 9, the bottom of rotating column 9 is rotatably connected in the annular groove formed in the upper end of fixed bottom frame 13, the upper end of rotating column 9 penetrates fixed top frame 8, fixed top frame 8 is rotatably connected with rotating column 9, first drive mechanism acting on rotating column 9 is arranged on sealing cover 3, a plurality of stirring rods 14 are rotatably installed on the outer wall of rotating column 9, the plurality of stirring rods 14 are equally divided into three groups, and each group of stirring rods 14 is arranged in annular array, a plurality of stirring sub-rods 15 are fixedly installed on the outer wall of stirring rod 14, and the end of stirring rod 14 close to rotating column 9 extends to the inside of movable slot 17, second drive mechanism acting on stirring rod 14 is arranged in movable slot 17.

[0023] Among them, first drive mechanism is composed of motor 7, rotating shaft 11 and cross plate 12, motor 7 is fixedly installed on the upper end of sealing cover 3, rotating shaft 11 is rotatably connected at the bottom of sealing cover 3, the output shaft of motor 7 is fixedly connected at the upper end of rotating shaft 11, cross plate 12 is fixedly installed at the bottom of rotating shaft 11, cross slot 10 is formed in the upper end of rotating column 9, and cross plate 12 and cross slot 10 are mutually adapted.

[0024] ​In use, when the sealing cover 3 is fixed on the upper end of the distillation kettle body 1, the cross plate 12 at the bottom of the sealing cover 3 is just clamped into the cross groove 10 at the upper end of the rotating column 9, the motor 7 is started to drive the rotating shaft 11 to rotate, thereby driving the cross plate 12 and the rotating column 9 to rotate, and further driving the stirring rod 14 on the rotating column 9 to rotate.

[0025] The second driving mechanism is composed of a fixed shaft 16, a driving bevel gear 18 and a driven bevel gear 19, the fixed shaft 16 is located in the interior of the movable groove 17, the fixed shaft 16 is fixedly connected to the upper end of the fixed base 13, the upper end of the fixed shaft 16 is rotatably connected to the top wall of the inner cavity of the movable groove 17, three driving bevel gears 18 are fixedly sleeved on the outer wall of the fixed shaft 16, the three driving bevel gears 18 correspond to the three groups of stirring rods 14 one by one, the end of the stirring rod 14 close to the driving bevel gear 18 is fixedly connected with the driven bevel gear 19, and the driving bevel gear 18 and the driven bevel gear 19 are meshed with each other.

[0026] In use, when the rotating column 9 rotates, the stirring rod 14 is driven to rotate, so that the driven bevel gear 19 on the stirring rod 14 rotates around the driving bevel gear 18, the driving bevel gear 18 is fixed, the driven bevel gear 19 rotates while rotating, thereby driving the stirring rod 14 to rotate, and further driving the stirring branch rod 15 on the stirring rod 14 to rotate, so that the stirring effect is effectively improved.

[0027] The outer wall of the distillation kettle body 1 is fixedly sleeved with two reinforcing rings 20.

[0028] The reinforcing rings 20 can improve the structural strength of the distillation kettle body 1.

[0029] The side wall of the distillation kettle body 1 is fixedly provided with a feeding pipe 4 in communication with the interior of the distillation kettle body 1, the bottom of the distillation kettle body 1 is fixedly provided with a discharge pipe 6 in communication with the interior of the distillation kettle body 1, and the upper end of the sealing cover 3 is fixedly provided with a steam outlet pipe 5 in communication with the interior of the distillation kettle body 1.

[0030] The feeding pipe 4 and the discharge pipe 6 can be closed by the sealing plugs when not in use.

[0031] The utility model provides a distillation kettle for preparing hydroxyethyl acrylate, and the specific working principle is as follows:

[0032] When in use, the raw materials are introduced into the distillation kettle body 1 through the feeding pipe 4, and the heating wires inside the side wall of the distillation kettle body 1 provide heat for the inside of the distillation kettle body 1. When the sealing cover 3 is fixed on the upper end of the distillation kettle body 1, the cross plate 12 at the bottom of the sealing cover 3 is just clamped into the cross groove 10 at the upper end of the rotating column 9. The motor 7 drives the rotating shaft 11 to rotate, which in turn drives the cross plate 12 and the rotating column 9 to rotate, and then drives the stirring rod 14 on the rotating column 9 to rotate, so that the driven bevel gear 19 on the stirring rod 14 rotates around the driving bevel gear 18, and the driven bevel gear 19 rotates while rotating, so that the stirring rod 14 rotates, and then the stirring rod 14 drives the stirring branch rod 15 to rotate, so that the stirring rod 14 can be stirred from different angles while stirring, which can effectively improve the stirring efficiency and then improve the distillation efficiency.

Claims

1. A distillation kettle for the preparation of hydroxyethyl acrylate, comprising a distillation kettle body (1), characterized in that: The bottom of the distillation kettle body (1) is fixedly installed with a support frame (2), the upper end of the distillation kettle body (1) is fixedly installed with a sealing cover (3), the inner wall of the distillation kettle body (1) is fixedly installed with a fixed top frame (8) and a fixed bottom frame (13), a rotating column (9) is arranged between the fixed top frame (8) and the fixed bottom frame (13), the rotating column (9) is internally provided with a movable groove (17), the bottom of the movable groove (17) extends to the bottom of the rotating column (9), the bottom of the rotating column (9) is rotatably connected in an annular groove arranged on the upper end of the fixed bottom frame (13), the upper end of the rotating column (9) penetrates through the fixed top frame (8), the fixed top frame (8) is rotatably connected with the rotating column (9), the sealing cover (3) is provided with a first driving mechanism acting on the rotating column (9), a plurality of stirring rods (14) are rotatably installed on the outer wall of the rotating column (9), a plurality of stirring sub-rod (15) are fixedly installed on the outer wall of the stirring rod (14), one end of the stirring rod (14) close to the rotating column (9) extends to the inside of the movable groove (17), the movable groove (17) is provided with a second driving mechanism acting on the stirring rod (14).

2. The hydroxyethyl acrylate preparation distillation still according to claim 1, characterized in that: The rotating column (9) is located at the axis of the distillation kettle body (1).

3. The hydroxyethyl acrylate preparation distillation still according to claim 1, characterized by: The plurality of stirring rods (14) are equally divided into three groups, and each group of stirring rods (14) is arranged in an annular array.

4. The hydroxyethyl acrylate preparation distillation still according to claim 1, characterized by: The first driving mechanism is composed of a motor (7), a rotating shaft (11) and a cross plate (12), the motor (7) is fixedly installed on the upper end of the sealing cover (3), the rotating shaft (11) is rotatably connected at the bottom of the sealing cover (3), the output shaft of the motor (7) is fixedly connected to the upper end of the rotating shaft (11), the cross plate (12) is fixedly installed at the bottom of the rotating shaft (11), the upper end of the rotating column (9) is provided with a cross groove (10), and the cross plate (12) and the cross groove (10) are matched with each other.

5. The hydroxyethyl acrylate preparation distillation still according to claim 1, characterized by: The second driving mechanism is composed of a fixed shaft (16), a driving bevel gear (18) and a driven bevel gear (19), the fixed shaft (16) is located in the inside of the movable groove (17), the fixed shaft (16) is fixedly connected to the upper end of the fixed bottom frame (13), the upper end of the fixed shaft (16) is rotatably connected to the inner cavity top wall of the movable groove (17), three driving bevel gears (18) are fixedly sleeved on the outer wall of the fixed shaft (16), three driving bevel gears (18) correspond to three groups of stirring rods (14) one by one, the end of the stirring rod (14) close to the driving bevel gear (18) is fixedly connected with a driven bevel gear (19), and the driving bevel gear (18) and the driven bevel gear (19) are meshed with each other.

6. The hydroxyethyl acrylate preparation distillation still according to claim 1, characterized by: Two reinforcing rings (20) are fixedly sleeved on the outer wall of the distillation kettle body (1).

7. The hydroxyethyl acrylate preparation distillation still according to claim 1, characterized by: The side wall of the distillation kettle body (1) is fixedly provided with a feeding pipe (4) communicated with the inside of the distillation kettle body (1), and the bottom of the distillation kettle body (1) is fixedly provided with a discharge pipe (6) communicated with the inside of the distillation kettle body (1), and the upper end of the sealing cover (3) is fixedly provided with a steam outlet pipe (5) communicated with the inside of the distillation kettle body (1).

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