A micro combined polymerization experiment device

Abstract

The utility model relates to double screw extrusion equipment technical field, specifically disclose a kind of micro combined polymerization experimental device, including frame body, reaction device, hot melting device and double screw extrusion equipment, the reaction device is installed in the upper portion of frame body, the hot melting device is installed in the middle portion of frame body, the discharge port of reaction device is connected with hot melting device;The double screw extrusion equipment is installed in one side of frame body, and the double screw extrusion barrel of double screw extrusion equipment is straight until the middle portion of frame body, and is installed in the discharge port bottom of hot melting device by feed hopper.This scheme can form melt after the discharge port of reaction device is connected with hot melting device, to complete polymerization on chemical industry under the action of hot melting device to mixed material, and then after the action of double screw extrusion equipment, melt is extruded in coordination with experimental requirement, satisfies polymerization experimental requirement.

Description

Technical Field

[0001] This utility model relates to the technical field of twin-screw extrusion equipment, and in particular to a micro-combined polymerization experimental device. Background Technology

[0002] Polymerization experiments transform small-molecule monomers into large-molecule chain structures under controlled conditions. The products of polymerization possess important properties not found in low-molecular-weight monomers, such as plasticity, fiber formation, film formation, and high elasticity. Polymerization is widely used in basic experiments for the preparation of plastics, fibers, rubber, and other products. Currently, twin-screw extruders only convey materials after they have been melted and do not participate in the polymerization reaction for further processing. In polymerization, the product from the reactor is manually discharged according to the experimenter's needs, making it difficult to control the discharge volume and often resulting in the waste of valuable materials. Utility Model Content

[0003] The purpose of this invention is to provide a miniature combined polymerization experimental device to solve the problems encountered in the above-mentioned background art.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A miniature combined polymerization experimental device includes a frame, a reaction device, a hot melt device, and a twin-screw extruder. The reaction device is installed on the upper part of the frame, the hot melt device is installed in the middle of the frame, and the discharge port of the reaction device is connected to the hot melt device. The twin-screw extruder is installed on one side of the frame, and the twin-screw extruder cylinder of the twin-screw extruder extends to the middle of the frame and is installed at the bottom of the discharge port of the hot melt device through a feed hopper.

[0005] The above solution also includes an operating host, which is installed at the bottom of the frame.

[0006] In the above scheme, the frame includes a base frame, a support frame, and a top frame. The top of the base frame is fixedly connected to the top frame. A first motor mounting base is installed on the top of the top frame. The outer bottom of the top frame is fixedly connected to the support frame. A second motor mounting base is installed on the outer side of the support frame. The operating host is installed at the bottom of the base frame. A table is installed on the top of the base frame near the support frame. A first drive device is installed on the frame via the first motor mounting base, and a second drive device is installed on the frame via the second motor mounting base.

[0007] In the above scheme, the reaction device is installed on the upper part of the top frame, the hot-melting device is installed on the lower part of the top frame, the top of the reaction device is connected to the first driving device, and the input end of the hot-melting device is connected to the second driving device; the operating host is connected to the reaction device, the first driving device, the hot-melting device, and the second driving device respectively.

[0008] In the above scheme, the reaction device includes a reaction vessel, in which a stirring paddle is installed. The top of the stirring paddle is connected to a first driving device, and the bottom of the reaction vessel is connected to the feed end of a hot-melting device via a ball valve. As a preferred embodiment, the reaction vessel shell is provided with a jacket, and the outer side of the reaction vessel is provided with a cooling joint communicating with the inner jacket.

[0009] In the above scheme, the reactor includes a cylinder and a head. The cylinder and the head are detachably connected. A gasket is installed on the top mounting surface of the cylinder. Welded parts connected to the top frame are installed on both sides of the cylinder. The bottom of the cylinder is connected to a ball valve through a pipe section. A mechanical seal that seals with the agitator is installed on the top of the head. The mechanical seal is sealed to the agitator through a sealing sleeve. A feed pipe is installed on the outer shell of the head.

[0010] In the above scheme, the hot-melt device includes a melt pump. The top inlet of the melt pump is connected to the reaction device via a connecting flange, and the side drive end of the melt pump is connected to the second drive device via a drive flange. The bottom outlet of the melt pump is located directly above the feed hopper. As a preferred embodiment, the drive end of the second drive device is connected to the drive flange via a universal joint.

[0011] As a preferred embodiment, the frame is equipped with a support plate for supporting the twin-screw extruder cylinder.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This solution connects the discharge port of the reaction device to the hot-melt device, enabling the mixed materials to form a melt under the action of the hot-melt device, thereby completing the polymerization process in chemical engineering. Then, the twin-screw extruder barrel of the twin-screw extruder extends to the middle of the frame and is installed at the bottom of the discharge port of the hot-melt device via a feed hopper to receive the melt. Through the action of the twin-screw extruder, the melt is extruded according to experimental requirements, satisfying the experimental needs. Because the twin screws in the twin-screw extruder barrel of the twin-screw extruder have a quantitative material conveying function during extrusion, it is possible to easily control the material extrusion, save on the use of valuable materials, and meet the requirements of polymerization experiments. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A frontal view diagram; Figure 3 for Figure 1 A side view diagram; Figure 4 for Figure 1 A top-down view; Figure 5 This is a schematic diagram of the frame structure in this utility model; Figure 6 This is a schematic diagram of the structure of the reaction vessel in this utility model.

[0014] Numbering in the diagram: 1-Frame; 11-Base frame; 12-Support frame; 13-Top frame; 14-Tabletop; 15-First motor mounting base; 16-Second motor mounting plate; 2-Reaction device; 21-Cylinder; 22-End cap; 23-Agitator; 24-Welded component; 25-Mechanical seal; 26-Ball valve; 27-Sealing sleeve; 28-Feeding pipe; 3-First drive device; 4-Hot melt device; 41-Mel pump; 42-Connecting flange; 43-Transmission flange; 44-Universal joint; 5-Second drive device; 6-Twin screw extruder; 61-Feed hopper; 62-Panel; 7-Operating host. Detailed Implementation

[0015] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the utility model will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of this utility model, and therefore only show the relevant components of this utility model.

[0016] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] Example 1, such as Figure 1-4 As shown, a micro-combined polymerization experimental device includes a frame 1, a reaction device 2, a hot-melt device 4, and a twin-screw extruder. The reaction device 2 is installed on the upper part of the frame 1, and its main function is to mix the added materials and make them more homogeneous through stirring. The hot-melt device 4 is installed in the middle of the frame 1, and it melts the homogeneous mixture to form a molten material. After connecting the outlet of the reaction device 2 to the hot-melt device 4, the mixed materials can be melted by the action of the hot-melt device 4, thereby completing the polymerization process in chemical engineering.

[0019] In addition, in this embodiment, the twin-screw extruder is installed on one side of the frame 1, and the twin-screw extrusion cylinder 6 of the twin-screw extruder extends to the middle of the frame 1 and is installed at the bottom of the discharge port of the hot melt device 4 through the feed hopper 61 to receive the hot melt. Then, through the action of the twin-screw extruder, the melt is extruded in accordance with the experimental requirements. The melt can be further cooled in the twin-screw extruder to meet the experimental requirements.

[0020] To prevent contamination during the transfer of molten material to the twin-screw extruder, which could affect the polymerized product, a protective cover can be installed between the feed hopper 61 and the discharge port of the hot melt device 4 as a preferred solution to prevent the discharged molten material from being interfered with by external impurities.

[0021] This miniature combined polymerization experimental device also includes a control unit 7, which is installed at the bottom of the frame 1 and is used to connect the reaction device 2, the hot melt device 4, and the twin-screw extruder for unified start-stop control and speed adjustment. The control unit 7 is mounted on a housing, which contains a power supply connected to the control unit 7. Universal casters are installed at the bottom of the housing for easy movement to a suitable position and locking.

[0022] Example 2, based on the solution of Example 1, please refer to... Figure 5 The frame 1 includes a base frame 11, a support frame 12, and a top frame 13, all of which are welded from square tubing. The top of the base frame 11 is welded and fixedly connected to the top frame 13. A first motor mounting base 15 is installed on the top of the top frame 13, and the outer bottom of the top frame 13 is welded and fixedly connected to the support frame 12. A second motor mounting base 16 is installed on the outer side of the support frame 12. The main operating unit 7 is installed at the bottom of the base frame 11 and can be directly locked and positioned at the bottom of the base frame 11 using the casters at the bottom of the housing.

[0023] A platform 14 is installed on the top of the base frame 11 near the support frame 12. The platform 14 is made of a 4 mm thick plate and is welded to the top of the base frame 11. It is used to conveniently place toolboxes or other temporary items during maintenance, and can also be used to support the second drive device 5 by raising it. The first drive device 3 is mounted on the frame 1 via the first motor mounting bracket 15, and the second drive device 5 is mounted on the frame 1 via the second motor mounting bracket 16. Both the first drive device 3 and the second drive device 5 are SEW geared motors, and the SEW geared motor model R47DRS71M4 can be selected.

[0024] For further details, please refer to [link / reference]. Figure 1The reaction device 2 is installed on the upper part of the top frame 13, and the hot-melt device 4 is installed on the lower part of the top frame 13. Therefore, both the reaction device 2 and the hot-melt device 4 are installed in the top frame 13. The top of the reaction device 2 is connected to the first drive device 3, which provides power to the reaction device 2 to stir the materials. The input end of the hot-melt device 4 is connected to the second drive device 5, which provides power to the hot-melt device 4 to further transport the materials after polymerization. The host machine 7 is connected to the reaction device 2, the first drive device 3, the hot-melt device 4, and the second drive device 5, respectively, to provide power to each device and control the process flow of each device.

[0025] Example 3, based on the scheme of Example 2, the reaction device 2 includes a reaction vessel, in which a stirring paddle 23 is installed. The top of the stirring paddle 23 is connected to a first driving device 3, which drives the stirring paddle 23 to rotate at high speed to uniformly stir various materials. The bottom of the reaction vessel is connected to the feed end of the hot melt device 4 through a ball valve 26 to transport polymer materials into the hot melt device 4. The shell of the reaction vessel is provided with a jacket, and the outside of the reaction vessel is provided with a cooling joint that communicates with the internal jacket. The cooling joint is equipped with inlet and outlet water pipes for water cooling of the jacket, and the water-cooled parts include the cylinder 21 and the end cap 22.

[0026] Please see Figure 6 The reactor includes a cylindrical body 21 and a head 22, which are detachably connected. A gasket is installed on the top mounting surface of the cylindrical body 21 to provide a seal between the cylindrical body 21 and the head 22 after the lid is closed. Welded components 24 connected to the top frame 13 are installed on both sides of the cylindrical body 21. The welded components 24 are hollow square tube structures and can be directly welded to the inside of the top frame 13.

[0027] Furthermore, the bottom of the cylinder 21 is connected to the ball valve 26 via a pipe section for discharging the polymerized material from the reactor. The top of the head 22 is fitted with a mechanical seal 25 that seals against the agitator 23. The mechanical seal 25, a cylindrical structure with multiple sealing rings in the middle, serves a sealing function. The mechanical seal 25 is sealed to the agitator 23 via a sealing sleeve 27, and bearings are also installed inside the mechanical seal 25 for relative rotation with the agitator 23. At least two feed pipes 28 are installed on the outer shell of the head 22 for adding material to the reactor.

[0028] Example 4, based on the scheme of Example 2, the hot-melt device 4 includes a melt pump 41, which is a power device for conveying high-temperature, high-viscosity polymer melt. The top inlet of the melt pump 41 is connected to the reaction device 2 via a connecting flange 42, and the polymer material in the reaction device 2 enters the melt pump 41 for further hot-melting and conveying. Furthermore, the side drive end of the melt pump 41 is connected to a second drive device 5 via a drive flange 43, and the second drive device 5 provides power for the conveying of the melt pump 41. The bottom outlet of the melt pump 41 is located directly above the feed hopper 61, facilitating the conveying of the hot-melt material through the feed hopper 61 into the twin-screw extruder cylinder 6 below.

[0029] As a preferred embodiment, the drive end of the second drive device 5 is connected to the transmission flange 43 via a universal joint 44. The universal joint 44 acts as a self-aligning element, changing the direction of the transmission shaft to adapt to the transmission output shaft of the second drive device 5, so that it can better cooperate with the drive end of the melt pump 41 and better transport the hot melt.

[0030] The twin-screw extruder cylinder 6 of the twin-screw extruder is installed in the middle of the frame 1. In order to better and more stably support the twin-screw extruder cylinder 6, a support plate 62 is installed on the frame 1 to support the twin-screw extruder cylinder 6 of the twin-screw extruder, thus stably supporting the twin-screw extruder cylinder 6.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. These undisclosed elements are all prior art known to those skilled in the art.

[0032] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A miniature combined polymerization experimental device, characterized in that: The device includes a frame (1), a reaction device (2), a hot melt device (4), and a twin-screw extruder. The reaction device (2) is installed on the upper part of the frame (1), and the hot melt device (4) is installed in the middle of the frame (1). The discharge port of the reaction device (2) is connected to the hot melt device (4). The twin-screw extruder is installed on one side of the frame (1). The twin-screw extruder cylinder (6) of the twin-screw extruder extends to the middle of the frame (1) and is installed at the bottom of the discharge port of the hot melt device (4) through a feed hopper (61).

2. The miniature combined polymerization experimental device according to claim 1, characterized in that: It also includes an operating host (7), which is installed at the bottom of the frame (1).

3. The miniature combined polymerization experimental device according to claim 2, characterized in that: The frame (1) includes a base frame (11), a support frame (12), and a top frame (13). The top of the base frame (11) is fixedly connected to the top frame (13). A first motor mounting seat (15) is installed on the top of the top frame (13). The bottom outer side of the top frame (13) is fixedly connected to the support frame (12). A second motor mounting seat (16) is installed on the outer side of the support frame (12). The operating host (7) is installed at the bottom of the base frame (11). A table (14) is installed on the top of the base frame (11) near the support frame (12). A first drive device (3) is installed on the frame (1) through the first motor mounting seat (15). A second drive device (5) is installed on the frame (1) through the second motor mounting seat (16).

4. The miniature combined polymerization experimental device according to claim 3, characterized in that: The reaction device (2) is installed on the upper part of the top frame (13), the hot melt device (4) is installed on the lower part of the top frame (13), the top of the reaction device (2) is connected to the first drive device (3) and the input end of the hot melt device (4) is connected to the second drive device (5); the operating host (7) is connected to the reaction device (2), the first drive device (3), the hot melt device (4) and the second drive device (5) respectively.

5. A miniature combined polymerization experimental apparatus according to claim 4, characterized in that: The reaction device (2) includes a reaction vessel, in which a stirring paddle (23) is installed. The top of the stirring paddle (23) is connected to the first driving device (3) for transmission, and the bottom of the reaction vessel is connected to the feed end of the hot melting device (4) through a ball valve (26).

6. A miniature combined polymerization experimental apparatus according to claim 5, characterized in that: The reactor includes a cylinder (21) and a head (22). The cylinder (21) and the head (22) are detachably connected. A gasket is installed on the top mounting surface of the cylinder (21). Welded parts (24) connected to the top frame (13) are installed on both sides of the cylinder (21). The bottom of the cylinder (21) is connected to the ball valve (26) through a pipe section. A mechanical seal (25) is installed on the top of the head (22) to seal with the stirring paddle (23). The mechanical seal (25) is sealed to the stirring paddle (23) through a sealing sleeve (27). A feed pipe (28) is installed on the outer shell of the head (22).

7. A miniature combined polymerization experimental apparatus according to claim 5, characterized in that: The reactor shell has a jacket, and the outside of the reactor has a cooling joint that communicates with the inner jacket.

8. A miniature combined polymerization experimental device according to claim 4, characterized in that: The hot melt device (4) includes a melt pump (41), the top inlet of the melt pump (41) is connected to the reaction device (2) through a connecting flange (42), the side drive end of the melt pump (41) is connected to the second drive device (5) through a drive flange (43), and the bottom outlet of the melt pump (41) is located directly above the feed hopper (61).

9. A miniature combined polymerization experimental apparatus according to claim 8, characterized in that: The drive end of the second drive device (5) is connected to the transmission flange (43) via a universal joint (44).

10. A miniature combined polymerization experimental apparatus according to claim 1, characterized in that: The frame (1) is equipped with a support plate (62) for supporting the twin-screw extruder cylinder (6).

Images