Feeding device used after polymerization reaction in polymerization kettle

Abstract

The utility model discloses a feeding device used after polymerization reaction in a polymerization kettle, and relates to the technical field of polymerization reaction, the feeding device comprises a feeding device, the feeding device comprises an operation cylinder, a speed reducing motor, a magnetic vibrator, a feeding pipe, a vacuum pipe, an auger and a connecting flange, the inner hollow section of the operation cylinder is equal to the outer ring section of the auger in size, and the outer ring section of the auger is connected with the speed reducing motor. The bottom end of the gear motor is connected with the axis of the top face of the magnetic vibrator, the feeding pipe and the vacuum pipe are installed on the positions, close to the top end, of the two side faces of the operation cylinder respectively, and the feeding pipe and the vacuum pipe are communicated with the interior of the operation cylinder. The vacuum pipe is connected with a vacuum machine, oxygen fed by the feeding pipe together can be extracted in time, polymer oxidation is effectively controlled, the polymer is prevented from becoming waste, the bottom end of the auger and the bottom opening of the connecting flange are located on the same horizontal line, materials can be completely discharged conveniently, and the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polymerization reaction, in particular to a feeding device used for polymerization reaction in a polymerization kettle. Background Art

[0002] Plastic modification will develop from physical modification by screw melting to chemical modification by polymerization reaction. However, the existing polymerization kettle only feeds materials at one time, which causes some additives such as flame retardants, antibacterial agents, cross-linking agents to decompose due to long-term high-temperature polymerization reaction. By adopting a feeding device after polymerization reaction, these easily decomposable additives can be added in a controllable time period, so that the polymer can be polymerized smoothly and flame retardant, antibacterial, and high molecular weight can be obtained during the polymerization process, thus completing the polymerization chemical modification.

[0003] The existing polymerization kettle is charged once. After the polymerization reaction starts, the charging port of the kettle cannot be opened again, otherwise oxygen will enter the kettle and the polymer will be oxidized to become waste. The present invention adds a charging port with a valve on the polymerization kettle cover, and a locking flange is reserved on the port. After the rear charging device is tightly matched with the flange, vacuum is drawn to the ideal pressure, and the auxiliary agent of the rear charging device is driven by the stainless steel auger by rotating the magnetic coupling to push the auxiliary agent into the polymerization kettle. In this way, oxygen can be prevented from entering the kettle, and the auxiliary agent can be pushed into the polymerization kettle within the set time, so that the sensitive auxiliary agent is not decomposed, and the polymerization chemical modification is successfully completed. Utility Model Content

[0004] The utility model aims to provide a feeding device used for a polymerization kettle after polymerization reaction.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the feeding device used for the polymerization reaction of the polymerization kettle comprises a feeding device, wherein the feeding device comprises an operating cylinder, a reduction motor, a magnetic vibrator, a feed pipe, a vacuum tube, an auger and a connecting flange, the inner hollow cross-section of the operating cylinder is equal to the outer ring cross-section of the auger, the bottom end of the reduction motor is connected to the top axis of the magnetic vibrator, the feed pipe and the vacuum tube are respectively installed on the two side surfaces of the operating cylinder near the top, and the feed pipe and the vacuum tube are connected to the inside of the operating cylinder, the bottom surface of the magnetic vibrator is connected to the auger that completely passes through the top of the operating cylinder, a group of bearings are arranged between the top of the auger and the operating cylinder, and the top surface of the bearing is fixedly connected to the inner top surface of the operating cylinder.

[0006] As a further solution of the utility model: the bottom end of the outer surface of the operating cylinder is fixedly connected to the connecting flange, and a sealing ring is provided on the bottom surface of the operating cylinder.

[0007] As a further solution of the utility model: the reduction motor passes through the top surface of the magnetic vibrator and is fixedly connected with the top end of the auger.

[0008] As a further solution of the utility model: gate valves are installed inside the feed pipe and the vacuum tube, an auxiliary agent adding hopper is provided at the top of the feed pipe, the front end of the feed pipe is inclined upward, the feed pipe and the auxiliary agent adding hopper are connected to the inside, and the vacuum tube is connected to the vacuum machine.

[0009] As a further solution of the utility model: the bottom end of the auger and the bottom opening of the connecting flange are on the same horizontal line.

[0010] As a further solution of the utility model: the auger and the inner wall of the operating cylinder are tightly fitted.

[0011] As a further solution of the utility model: the inner ring of the bearing is sleeved on the top outer ring of the auger, and the outer ring of the bearing is fixedly connected to the inner wall of the operating cylinder.

[0012] By adopting the above technical solution, compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with gate valves through the feed pipe and the vacuum pipe, which is convenient for controlling the feeding and extraction of materials. The design of the additive bucket makes the addition of additives more convenient and accurate. The vacuum pipe is connected with the vacuum machine, which can timely extract the oxygen put in by the feed pipe, effectively control the oxidation of the polymer, and avoid the polymer from becoming waste. The bottom end of the auger is on the same horizontal line with the bottom of the connecting flange, which is convenient for the complete discharge of the material and improves the feeding efficiency.

[0014] 2. The utility model adopts a magnetic vibrator to drive the auger, eliminating the friction and wear problems caused by the traditional mechanical transmission method and extending the service life of the equipment. At the same time, the magnetic vibrator can generate high-frequency vibration, effectively preventing material adhesion and blockage, ensuring a smooth and stable feeding process. In addition, the device adopts a sealing ring design to effectively prevent material leakage and ensure the safety of the polymerization reaction.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of the feeding equipment in the embodiment of the utility model;

[0017] Figure 2 It is an isometric view of the feeding equipment in the embodiment of the utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the feeding equipment in the embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the connection between the auger and the bearing in the embodiment of the utility model.

[0020] In the figure: 1. feeding equipment; 2. operating cylinder; 3. reduction motor; 4. magnetic vibrator; 5. feeding pipe; 51. additive hopper; 6. vacuum tube; 7. auger; 8. connecting flange; 9. bearing; 10. gate valve. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] Example 1, please refer to the attached Figure 1 -Attached Figure 4 The feeding device used for the polymerization reaction of the polymerization kettle comprises a feeding device 1, which comprises an operating cylinder 2, a reduction motor 3, a magnetic vibrator 4, a feeding pipe 5, a vacuum tube 6, an auger 7 and a connecting flange 8. The inner hollow section of the operating cylinder 2 is equal to the outer ring section of the auger 7. The bottom end of the reduction motor 3 is connected to the top axis of the magnetic vibrator 4. The feeding pipe 5 and the vacuum tube 6 are respectively installed on the two side surfaces of the operating cylinder 2 near the top, and the feeding pipe 5 and the vacuum tube 6 are connected to the inside of the operating cylinder 2. The bottom surface of the magnetic vibrator 4 is connected to the auger 7 which completely passes through the top of the operating cylinder 2. A group of bearings 9 are arranged between the top of the auger 7 and the operating cylinder 2, and the top surface of the bearing 9 is fixedly connected to the inner top surface of the operating cylinder 2.

[0023] In this embodiment, the bottom end of the outer surface of the operating cylinder 2 is fixedly connected to the connecting flange 8 , and a sealing ring is provided on the bottom surface of the operating cylinder 2 .

[0024] In this embodiment, the gate valve 10 is installed inside the feed pipe 5 and the vacuum tube 6, and the opening and closing of the valve is controlled by the valve stem. When the gate valve 10 is in a closed state, it can prevent the material or gas from flowing through the pipeline. When the gate valve 10 is in an open state, the material or gas can flow freely through the pipeline. The additive hopper 51 is installed at the top of the feed pipe 5 to hold the additive. The additive is an auxiliary material added in the polymerization reaction, which can improve the performance of the polymer or control the reaction process. The additive enters the operating cylinder 2 through the feed pipe 5 and mixes with the material. The front end of the feed pipe 5 is tilted upward, which is conducive to the flow of the material. After the material enters the feed pipe 5, due to the effect of gravity, the material will flow downward along the inclined pipeline and enter the operating cylinder 2;

[0025] Gate valves 10 are installed inside the feed pipe 5 and the vacuum tube 6. An auxiliary agent adding hopper 51 is set at the top of the feed pipe 5. The front end of the feed pipe 5 is inclined upward. The feed pipe 5 and the auxiliary agent adding hopper 51 are connected to each other, and the vacuum tube 6 is connected to the vacuum machine.

[0026] In this embodiment, the bottom end of the auger 7 and the bottom opening of the connecting flange 8 are at the same horizontal line, which can ensure that the material will not be accumulated or blocked during the conveying process of the auger 7. When the auger 7 stops rotating, the material can be completely discharged from the operating cylinder 2 to avoid material residue.

[0027] The bottom end of the auger 7 and the bottom opening of the connecting flange 8 are at the same horizontal line.

[0028] Specifically, the feed pipe 5 and the vacuum tube 6 are both provided with a gate valve 10, which is convenient for controlling the feeding and extraction of materials. The design of the additive bucket 51 makes the addition of additives more convenient and accurate. The vacuum tube 6 is connected to the vacuum machine, and can timely extract the oxygen put in by the feed pipe 5, effectively controlling the oxidation of the polymer and preventing the polymer from becoming waste. The bottom end of the auger 7 is on the same horizontal line with the bottom of the connecting flange 8, which is convenient for the complete discharge of the material and improves the feeding efficiency.

[0029] Example 2, please refer to the attached Figure 1 -Attached Figure 4 The feeding device used for the polymerization reaction of the polymerization kettle comprises a feeding device 1, which comprises an operating cylinder 2, a reduction motor 3, a magnetic vibrator 4, a feeding pipe 5, a vacuum tube 6, an auger 7 and a connecting flange 8. The inner hollow section of the operating cylinder 2 is equal to the outer ring section of the auger 7. The bottom end of the reduction motor 3 is connected to the top axis of the magnetic vibrator 4. The feeding pipe 5 and the vacuum tube 6 are respectively installed on the two side surfaces of the operating cylinder 2 near the top, and the feeding pipe 5 and the vacuum tube 6 are connected to the inside of the operating cylinder 2. The bottom surface of the magnetic vibrator 4 is connected to the auger 7 which completely passes through the top of the operating cylinder 2. A group of bearings 9 are arranged between the top of the auger 7 and the operating cylinder 2, and the top surface of the bearing 9 is fixedly connected to the inner top surface of the operating cylinder 2.

[0030] In this embodiment, the reduction motor 3 passes through the top surface of the magnetic vibrator 4 and is fixedly connected to the top end of the auger 7 .

[0031] In this embodiment, the outer diameter of the auger 7 is closely fitted with the inner diameter of the operating cylinder 2, and the gap between the two is very small. This closely fitting design can prevent the material from leaking out from the gap between the auger 7 and the operating cylinder 2 during the conveying process, thereby ensuring the airtightness and efficiency of the feeding process;

[0032] The auger 7 and the inner wall of the operating cylinder 2 are in close contact.

[0033] In this embodiment, the bearing 9 is installed between the top of the auger and the inner wall of the operating cylinder to support and guide the auger. The bearing can be a rolling bearing or a sliding bearing. Its function is to reduce the friction and wear during the rotation of the auger and ensure the smooth operation of the auger. The outer ring of the bearing and the inner wall of the operating cylinder are fixed by bolts, press fit or other methods to form a rigid connection. This rigid connection can ensure that the bearing will not loosen or deviate when supporting the auger, ensuring the stability and reliability of the auger.

[0034] The inner ring of the bearing 9 is sleeved on the outer ring of the top end of the auger 7 , and the outer ring of the bearing 9 is fixedly connected to the inner wall of the operating cylinder 2 .

[0035] Specifically, a magnetic vibrator 4 is used to drive the auger 7 to eliminate the friction and wear problems caused by the traditional mechanical transmission method and extend the service life of the equipment. At the same time, the magnetic vibrator 4 can generate high-frequency vibrations to effectively prevent material adhesion and blockage, ensuring a smooth and stable feeding process. In addition, the device adopts a sealing ring design to effectively prevent material leakage and ensure the safety of the polymerization reaction.

[0036] Working principle:

[0037] (1) Material feeding:

[0038] After the polymerization reaction is completed, the material in the reactor needs to be transferred to the feeding device, the gate valve 10 on the feeding pipe 5 is opened, the material enters the feeding pipe 5 by gravity or other means, and the additive in the additive hopper 51 enters the reactor through the feeding pipe 5;

[0039] (2) Material transportation:

[0040] The magnetic vibrator 4 drives the auger 7 to rotate, and transports the material upward along the inner wall of the operating cylinder 2. The auger 7 is closely attached to the inner wall of the operating cylinder 2 to prevent material leakage and blockage. The bearing 9 supports the top of the auger 7 to ensure its stable operation.

[0041] (3) Material discharge:

[0042] The bottom end of the auger 7 and the bottom of the connecting flange 8 are at the same horizontal line, which is convenient for the complete discharge of the material. The connecting flange 8 is connected to the polymerization kettle, and the material is discharged into the polymerization kettle through the connecting flange 8;

[0043] (4) Vacuum Assistance:

[0044] The gate valve 10 on the vacuum tube 6 is opened, the vacuum machine is started, and the operating cylinder 2 is evacuated to timely extract the oxygen put in by the feed pipe 5, effectively controlling the oxidation of the polymer and preventing the polymer from becoming waste.

[0045] Specific process:

[0046] Connect the feeding device to the polymerization kettle, open the gate valves 10 on the feeding pipe 5 and the vacuum pipe 6, start the magnetic vibrator 4, drive the auger 7 to rotate, the material enters the operating cylinder 2 through the feeding pipe 5, and is transported upward by the auger 7, the vacuum machine is started, the operating cylinder 2 is evacuated, and the material is discharged into the polymerization kettle through the connecting flange 8;

[0047] After the feeding process is completed, the gate valves 10 on the feeding pipe 5 and the vacuum pipe 6 are closed, and the magnetic vibrator 4 is stopped;

[0048] The feeding device adopts a magnetic vibrator 4 to drive the auger 7, which eliminates the friction and wear problems caused by traditional mechanical transmission and extends the service life of the equipment. At the same time, the high-frequency vibration generated by the magnetic vibrator 4 effectively prevents the material from sticking and clogging, ensuring the smoothness and stability of the feeding process. In addition, the device adopts a sealing ring design to effectively prevent material leakage and ensure the safety of the polymerization reaction. At this point, the entire work process is completed.

[0049] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0051] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above-mentioned utility model, the details of its power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by technical personnel in this field.

[0052] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0053] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0054] For those skilled in the art, various changes, modifications, substitutions and variations can be made to these implementations without departing from the principles and spirit of the present invention, and they still fall within the protection scope of the present invention.

Claims

1. A feeding device for a polymerization reactor after polymerization reaction, comprising a feeding device (1), characterized in that: The feeding device (1) comprises an operating cylinder (2), a reduction motor (3), a magnetic vibrator (4), a feed pipe (5), a vacuum tube (6), an auger (7) and a connecting flange (8). The inner hollow cross-section of the operating cylinder (2) is equal to the outer ring cross-section of the auger (7). The bottom end of the reduction motor (3) is connected to the top axis of the magnetic vibrator (4). The feed pipe (5) and the vacuum tube (6) are respectively installed on the two side surfaces of the operating cylinder (2) near the top, and the feed pipe (5) and the vacuum tube (6) are connected to the inside of the operating cylinder (2). The bottom surface of the magnetic vibrator (4) is connected to the auger (7) which completely passes through the top of the operating cylinder (2). A group of bearings (9) are arranged between the top of the auger (7) and the operating cylinder (2), and the top surface of the bearing (9) is fixedly connected to the inner top surface of the operating cylinder (2).

2. A feeding device for a polymerization reactor after polymerization reaction according to claim 1, characterized in that: The bottom end of the outer surface of the operating cylinder (2) is fixedly connected to the connecting flange (8), and a sealing ring is provided on the bottom surface of the operating cylinder (2).

3. The feeding device for a polymerization reactor after polymerization reaction according to claim 1, characterized in that: The reduction motor (3) passes through the top surface of the magnetic vibrator (4) and is fixedly connected to the top end of the auger (7).

4. The feeding device for a polymerization reactor after polymerization reaction according to claim 1, characterized in that: Gate valves (10) are installed inside the feed pipe (5) and the vacuum pipe (6); an auxiliary agent adding hopper (51) is provided at the top end of the feed pipe (5); the front end of the feed pipe (5) is inclined upward; the feed pipe (5) and the auxiliary agent adding hopper (51) are internally connected; and the vacuum pipe (6) is connected to a vacuum machine.

5. The feeding device for a polymerization reactor after polymerization reaction according to claim 1, characterized in that: The bottom end of the auger (7) and the bottom opening of the connecting flange (8) are on the same horizontal line.

6. The feeding device for a polymerization reactor after polymerization reaction according to claim 1, characterized in that: The auger (7) and the inner wall of the operating cylinder (2) are tightly fitted.

7. The feeding device for a polymerization reactor after polymerization reaction according to claim 1, characterized in that: The inner ring of the bearing (9) is sleeved on the outer ring at the top end of the auger (7), and the outer ring of the bearing (9) is fixedly connected to the inner wall of the operating cylinder (2).

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