Reactor for lactide production

Abstract

The utility model relates to the technical field of reactors, in particular to a reactor for lactide production, which comprises a tank body and a connecting device, the side surface of the tank body is fixedly connected with a support, the upper surface of the tank body is fixedly connected with a motor, the surface of the tank body is fixedly connected with a feeding pipe, the lower surface of the tank body is fixedly connected with a discharging pipe, and the connecting device is fixedly connected with a motor. The connecting device is arranged at one end of the feeding pipe, the connecting device comprises a connecting pipe and a clamping groove, the clamping groove is formed in the side face of the feeding pipe, and the connecting pipe is arranged at one end of the feeding pipe. According to the connecting device, the connecting pipe is effectively connected, the effect of connecting the connecting pipe is achieved, and the situation that when equipment is used and when the connecting pipe is connected with the feeding pipe, bolts are generally used for connection, use of the bolts is too tedious, and consequently the connecting pipe is difficult to quickly connect the feeding pipe is reduced; and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to a reactor used for lactide production. Background Art

[0002] Lactide is an intermediate of polylactic acid, a biodegradable material. When producing and processing lactide, a reactor is often required to produce the product.

[0003] Existing technologies include the utility model with publication number CN215611517U, which discloses a reactor for lactide production. The lactide in the reactor body is distributed and heated by a rotary heat exchange mechanism and a centripetal liquid distribution mechanism, thereby increasing the heat exchange area and shortening the reaction time. The reactor rotates to transport materials, transfer heat and mix quickly, consumes little energy, and improves the purity and whiteness of the product. However, existing synthesis reactors are all tube-in-tube type, and it is difficult to increase the heating area per unit volume, resulting in a long reaction time. The heat transfer and mixing in the material heating tubes are slow, and carbonization is serious. There is a local overheating phenomenon, which is easy to burn and discolor.

[0004] At present, when most reactors are in use, the user passes the material to be reacted into the feed pipe through the connecting pipe, and the material enters the tank body through the feed pipe, and then starts the equipment motor to rotate and stir the material inside the tank body. However, when the equipment is in use, the connecting pipe and the feed pipe are connected, generally using bolts. The use of bolts is too cumbersome, making it difficult to quickly connect the connecting pipe to the feed pipe. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that when a connecting pipe and a feeding pipe are connected, bolts are generally used for connection, and the use of bolts is too cumbersome, resulting in difficulty in quickly connecting the connecting pipe to the feeding pipe, and a reactor for lactide production is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a reactor for the production of lactide, comprising a tank body and a connecting device, a bracket is fixedly connected to the side of the tank body, a motor is fixedly connected to the upper surface of the tank body, a feed pipe is fixedly connected to the surface of the tank body, and a discharge pipe is fixedly connected to the lower surface of the tank body. The connecting device is arranged at one end of the feed pipe, the connecting device comprises a connecting pipe and a slot, the slot is opened on the side of the feed pipe, the connecting pipe is arranged at one end of the feed pipe, a connecting block is fixedly connected to the side of the connecting pipe, and a rotating rod is rotatably connected to the inner wall of the connecting block.

[0007] Preferably, one end of the rotating rod is engaged with the inside of the slot, and a connecting ring is fixedly connected to the side of the connecting tube. By setting the rotating rod, the connecting tube and the feed tube can be connected, thereby reducing the possibility that the connecting tube is easily separated from the feed tube when the equipment is in use.

[0008] Preferably, a butt ring is slidably connected to the surface of the connecting pipe, and a pull block is fixedly connected to the side of the butt ring. The pull block is provided to facilitate the movement of the butt ring.

[0009] Preferably, a first spring is fixedly connected to the surface of the butt ring, and one end of the first spring away from the butt ring is fixedly connected to the surface of the connecting ring. The first spring is provided to facilitate applying elastic force to the butt ring.

[0010] Preferably, a discharge device is provided on the surface of the tank body, and the discharge device includes a discharge pipe and an exhaust hole. The discharge pipe is fixedly connected to the surface of the tank body, and the exhaust hole is opened inside the discharge pipe. The inner wall of the exhaust hole is fixedly connected with a connecting frame. By providing the exhaust hole, the gas inside the tank body can be discharged, thereby reducing the situation where the gas inside the tank body is difficult to discharge when the equipment is in use.

[0011] Preferably, a locking ball is slidably connected to the inner wall of the connecting frame, and a stop block is fixedly connected to one end of the locking ball. The stop block is provided to facilitate limiting the locking ball.

[0012] Preferably, a second spring is fixedly connected to the surface of the locking ball, and one end of the second spring away from the locking ball is fixedly connected to the surface of the connecting frame. The second spring is provided to facilitate applying elastic force to the locking ball.

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

[0014] 1. In the utility model, when using the equipment, the user allows the material to be reacted to enter the feed pipe through the connecting pipe, and the material enters the tank body through the feed pipe, and then the equipment motor is started to rotate to stir the material in the tank body. When the equipment needs to be used, the user pulls the pull block, and then pulls the resist ring to move, and then the movement of the resist ring drives the first spring to displace and deform to generate elastic force, and then the resist ring is separated from the surface of the rotating rod, and then the rotating rod loses its restraint, and the rotating rod is rotated to separate from the inside of the card slot, and then the connecting pipe loses its restraint, and pulls the connecting pipe to separate from one end of the feed pipe. By setting a connecting device, the connecting pipe is effectively connected, which plays a role in connecting the connecting pipe, reducing the situation that bolts are generally used to connect the connecting pipe and the feed pipe when the equipment is in use. The use of bolts is too cumbersome, which makes it difficult to quickly connect the connecting pipe to the feed pipe, thereby improving the practicality of the equipment.

[0015] 2. In the utility model, by providing a discharge device, when the equipment needs to be used, the user installs the equipment on the surface of the tank body, and when the inside of the tank body reacts, a large amount of gas is easily generated inside the tank body, which pushes the card ball to move. When the card ball moves, it drives the second spring to displace and deform to generate elastic force, and then the card ball is separated from the connection between the exhaust hole and the tank body to discharge the gas inside the tank body. By providing a discharge device, the gas inside the tank body is effectively discharged, which plays a role in reducing the air pressure inside the tank body, reduces the situation where there is more gas inside the tank body when the equipment is in use, causing leakage at the connection of the tank body, and improves the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a reactor for lactide production;

[0017] Figure 2 The utility model provides a side view schematic diagram of a reactor for lactide production;

[0018] Figure 3 A partial structural schematic diagram of a reactor for lactide production proposed by the utility model;

[0019] Figure 4 The utility model proposes a reactor for lactide production Figure 3 Schematic diagram of the structure at A in the middle;

[0020] Figure 5 The utility model proposes a reactor for lactide production Figure 3 Schematic diagram of the structure at point B in the middle.

[0021] Legend: 1. Tank body; 2. Bracket; 3. Feed pipe; 4. Motor; 5. Discharge pipe; 6. Connecting device; 61. Connecting pipe; 62. Slot; 63. Connecting block; 64. Turning rod; 65. Buffer ring; 66. First spring; 67. Pull block; 68. Connecting ring; 7. Discharge device; 71. Discharge pipe; 72. Exhaust hole; 73. Card ball; 74. Connecting frame; 75. Buffer block; 76. Second spring. DETAILED DESCRIPTION

[0022] See also Figure 1-5 The utility model provides a technical solution: a reactor for lactide production, comprising a tank body 1 and a connecting device 6, a bracket 2 is fixedly connected to the side of the tank body 1, a motor 4 is fixedly connected to the upper surface of the tank body 1, a feed pipe 3 is fixedly connected to the surface of the tank body 1, and a discharge pipe 5 is fixedly connected to the lower surface of the tank body 1.

[0023] The specific arrangement and function of the connecting device 6 and the discharge device 7 will be described in detail below.

[0024] In this embodiment: the connecting device 6 is arranged at one end of the feed pipe 3, and the connecting device 6 includes a connecting pipe 61 and a slot 62. The slot 62 is opened on the side of the feed pipe 3, and the connecting pipe 61 is arranged at one end of the feed pipe 3. The side of the connecting pipe 61 is fixedly connected with a connecting block 63, and the inner wall of the connecting block 63 is rotatably connected with a rotating rod 64.

[0025] Specifically, one end of the rotating rod 64 is engaged with the inside of the engaging groove 62 , and a connecting ring 68 is fixedly connected to the side surface of the connecting tube 61 .

[0026] In this embodiment, by providing a rotating rod 64, the connecting tube 61 can be connected to the feeding tube 3, thereby reducing the possibility that the connecting tube 61 is easily separated from the inside of the feeding tube 3 when the device is in use.

[0027] Specifically, a retaining ring 65 is slidably connected to the surface of the connecting tube 61 , and a pulling block 67 is fixedly connected to the side of the retaining ring 65 . The pulling block 67 is provided to facilitate the movement of the retaining ring 65 .

[0028] Specifically, a first spring 66 is fixedly connected to the surface of the butt ring 65 , and one end of the first spring 66 away from the butt ring 65 is fixedly connected to the surface of the connecting ring 68 . The first spring 66 is provided to facilitate applying elastic force to the butt ring 65 .

[0029] In this embodiment: a discharge device 7 is provided on the surface of the tank body 1, and the discharge device 7 includes a discharge pipe 71 and an exhaust hole 72. The discharge pipe 71 is fixedly connected to the surface of the tank body 1, and the exhaust hole 72 is opened inside the discharge pipe 71. The inner wall of the exhaust hole 72 is fixedly connected to a connecting frame 74.

[0030] In this embodiment, the exhaust hole 72 is provided to discharge the gas inside the tank body 1, thereby reducing the difficulty in discharging the gas inside the tank body 1 when the device is in use.

[0031] Specifically, a locking ball 73 is slidably connected to the inner wall of the connecting frame 74 , and a stop block 75 is fixedly connected to one end of the locking ball 73 . The stop block 75 is provided to facilitate limiting the locking ball 73 .

[0032] Specifically, a second spring 76 is fixedly connected to the surface of the locking ball 73 , and one end of the second spring 76 away from the locking ball 73 is fixedly connected to the surface of the connecting frame 74 . The second spring 76 is provided to facilitate applying elastic force to the locking ball 73 .

[0033] Working principle: When using the equipment, the user passes the material to be reacted into the feed pipe 3 through the connecting pipe 61, and the material enters the tank body 1 through the feed pipe 3, and then starts the equipment motor 4 to rotate and stir the material in the tank body 1. When the equipment needs to be used, the user pulls the pull block 67, and then pulls the ring 65 to move, and then the movement of the ring 65 drives the first spring 66 to displace and deform to generate elastic force, and then the ring 65 is separated from the surface of the rotating rod 64, and then the rotating rod 64 loses its restraint, and the rotating rod 64 is rotated to separate from the inside of the card slot 62, and then the connecting pipe 61 loses its restraint, and pulls the connecting pipe 61 to separate from one end of the feed pipe 3. By setting the connecting device 6, the connecting pipe 61 is effectively connected, which plays a role in connecting the connecting pipe 61, reducing the situation that when the equipment is in use, the connecting pipe 61 is generally connected with the feed pipe 3 using bolts, and the use of bolts is too cumbersome, which makes it difficult for the connecting pipe 61 to quickly connect to the feed pipe 3, thereby improving the practicality of the equipment.

[0034] When the device needs to be used, the user installs the device on the surface of the tank body 1. When the inside of the tank body 1 reacts, a large amount of gas is easily generated inside the tank body 1, which pushes the card ball 73 to move. When the card ball 73 moves, it drives the second spring 76 to displace and deform to generate elastic force. Then the card ball 73 breaks away from the connection between the exhaust hole 72 and the tank body 1 to discharge the gas inside the tank body 1. By setting up the discharge device 7, the gas inside the tank body 1 is effectively discharged, which plays a role in reducing the air pressure inside the tank body 1, reduces the situation where there is more gas inside the tank body 1 when the device is in use, causing leakage at the connection of the tank body 1, and improves the practicability of the device.

Claims

1. A reactor for lactide production, comprising a tank body (1) and a connecting device (6), characterized in that: The side of the tank body (1) is fixedly connected to a bracket (2), the upper surface of the tank body (1) is fixedly connected to a motor (4), the surface of the tank body (1) is fixedly connected to a feed pipe (3), the lower surface of the tank body (1) is fixedly connected to a discharge pipe (5), the connecting device (6) is arranged at one end of the feed pipe (3), the connecting device (6) comprises a connecting pipe (61) and a slot (62), the slot (62) is provided on the side of the feed pipe (3), the connecting pipe (61) is arranged at one end of the feed pipe (3), the side of the connecting pipe (61) is fixedly connected to a connecting block (63), and the inner wall of the connecting block (63) is rotatably connected to a rotating rod (64).

2. A reactor for lactide production according to claim 1, characterized in that: One end of the rotating rod (64) is clamped with the inside of the clamping groove (62), and a connecting ring (68) is fixedly connected to the side surface of the connecting tube (61).

3. A reactor for lactide production according to claim 2, characterized in that: A retaining ring (65) is slidably connected to the surface of the connecting pipe (61), and a pulling block (67) is fixedly connected to the side of the retaining ring (65).

4. A reactor for lactide production according to claim 3, characterized in that: A first spring (66) is fixedly connected to the surface of the butt ring (65), and one end of the first spring (66) away from the butt ring (65) is fixedly connected to the surface of the connecting ring (68).

5. A reactor for lactide production according to claim 1, characterized in that: The surface of the tank body (1) is provided with a discharge device (7), the discharge device (7) comprising a discharge pipe (71) and an exhaust hole (72), the discharge pipe (71) being fixedly connected to the surface of the tank body (1), the exhaust hole (72) being arranged inside the discharge pipe (71), and the inner wall of the exhaust hole (72) being fixedly connected to a connecting frame (74).

6. A reactor for lactide production according to claim 5, characterized in that: The inner wall of the connecting frame (74) is slidably connected with a locking ball (73), and one end of the locking ball (73) is fixedly connected with a stop block (75).

7. A reactor for lactide production according to claim 6, characterized in that: A second spring (76) is fixedly connected to the surface of the locking ball (73); one end of the second spring (76) away from the locking ball (73) is fixedly connected to the surface of the connecting frame (74).

Images