Polymerizing kettle for producing cyclized rubber

Abstract

The utility model provides a polymerization kettle for producing cyclized rubber, and belongs to the technical field of chemical equipment. Comprising a kettle body, a stirring assembly is arranged in the kettle body and comprises a rotating shaft, a plurality of stirring blades are arranged on the outer wall of the rotating shaft, thermocouples are arranged in the stirring blades, the detection ends of the thermocouples penetrate through and extend out of the stirring blades, and a temperature displayer is arranged on the kettle body. By arranging the installation space in the rotating shaft of the kettle body, the thermocouple can be installed in the stirring blade, the temperature of the materials in the kettle body is measured through the thermocouple of the stirring blade, the thermocouple does not influence the action of the stirring blade, and the stirring effect on the materials in the kettle body is maintained. The temperature of the materials in the kettle body can be comprehensively and accurately measured, and the effect of accurately detecting the temperature of the materials in the kettle is achieved.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a polymerization reactor for producing cyclic rubber. Background Technology

[0002] Cyclic rubber is a rubber isomer with a ring structure formed within its molecule. Based on the degree of cyclization, it can be classified into partially cyclized or monocyclic rubber and fully cyclized or polycyclic rubber. Cyclic rubber can be produced from natural rubber or synthetic rubber (such as styrene-butadiene rubber) by heating or reacting with sulfuric acid, tin chloride, zinc powder, etc. The polymerization reactor plays a crucial role in the production of cyclic rubber, providing a sealed, high-pressure reaction environment that ensures the rubber monomers polymerize under suitable temperature and pressure, thereby generating cyclic rubber.

[0003] Patent CN214051630U discloses a stainless steel polymerization reactor for producing room temperature curing silicone rubber, including a motor, a frame at the bottom of the motor, an upper cover at the bottom of the frame, a reactor body below the upper cover, a lower cover below the reactor body, latches on both sides of the reactor body, a stirring shaft inside the reactor body, a stirring paddle on the outer wall of the stirring shaft, a discharge pipe on the right side inside the reactor body, and a discharge port at the bottom of the lower cover.

[0004] During operation, the polymerization reactor operates under high pressure and high heat, requiring staff to monitor the material temperature in real time to add additives and remove rubber as needed. Currently, temperature detection in the polymerization reactor involves using a thermocouple and an enamel-lined sleeve inserted into the material between the gaps in the agitator. However, this method prevents the agitator from fully mixing the material, and the material around the thermocouple has poor flowability, resulting in inaccurate temperature readings. Utility Model Content

[0005] In view of the above problems, this utility model provides a polymerization reactor for the production of cyclized rubber.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A polymerization reactor for producing cyclic rubber is provided, comprising a reactor body, a stirring assembly disposed within the reactor body, the stirring assembly including a rotating shaft, a plurality of stirring blades spirally spaced along the axial direction of the rotating shaft on the outer wall of the rotating shaft, an installation space coaxially disposed inside the rotating shaft, a thermocouple disposed within the stirring blades, the detection end of the thermocouple passing through and extending out of the stirring blade, a first driving assembly for driving the rotating shaft to rotate disposed at the top of the reactor body, a temperature display disposed on the reactor body, the thermocouple being electrically connected to the temperature display, and the temperature display being used to display the temperature detected by the thermocouple.

[0008] Furthermore, several mounting ports are provided on the side wall of the rotating shaft, the interior of the stirring blade is hollow, a connecting flange is provided at one end of the stirring blade near the rotating shaft, the connecting flange is fixedly connected to the rotating shaft by bolts, and the thermocouple is installed inside the stirring blade.

[0009] Furthermore, the first drive assembly includes a drive motor, the top end of the rotating shaft extends out of the top of the vessel body and is coaxially fixedly provided with a driven gear, the drive motor is fixedly provided on the top of the vessel body, the output end of the drive motor is connected to the drive gear, and the drive gear meshes with the driven gear.

[0010] Furthermore, a connecting cylinder is provided inside the rotating shaft, and the connecting cylinder is provided with several interfaces for thermocouple insertion. The interfaces correspond one-to-one with the mounting ports on the rotating shaft. The top of the connecting cylinder is detachably connected to the top of the rotating shaft, and a rotary conductive joint is provided on the top of the connecting cylinder. The temperature display is connected to each thermocouple through the rotary conductive joint.

[0011] Furthermore, the stirring blades are filled with a heat insulation layer, and a baffle is vertically installed inside the stirring blades. The baffle divides the rotating shaft into a U-shaped heat dissipation cavity. An exhaust port is opened at the top of one side of the heat dissipation cavity, and an air inlet is opened on the rotating shaft to connect to the other side of the heat dissipation cavity. An air supply component for supplying air into the air inlet is provided on the top of the vessel.

[0012] Furthermore, several auxiliary blades are fixedly installed on the inner wall of the vessel. The end of the auxiliary blade away from the inner wall of the vessel extends into the space between two stirring blades in the vertical direction. The tilting direction of the auxiliary blade is opposite to that of the stirring blade.

[0013] The beneficial effects of this utility model are as follows: by setting an installation space inside the rotating shaft of the vessel, thermocouples can be installed inside the stirring blades. The temperature of the material inside the vessel can be measured by the thermocouples on the stirring blades. Furthermore, the thermocouples do not affect the movement of the stirring blades. While maintaining the stirring and mixing effect on the material inside the vessel, the temperature of the material inside the vessel can also be measured comprehensively and accurately, making it convenient for staff to observe the temperature of the material inside the vessel in real time and add additives in a timely manner. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the polymerization reactor according to an embodiment of this application.

[0015] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0016] Figure 3 This is a partial cross-sectional view of the polymerization reactor body according to an embodiment of this application.

[0017] Figure 4This is a schematic diagram of the internal structure of the rotating shaft according to an embodiment of this application.

[0018] Among them, 1. vessel body; 11. auxiliary blades; 2. rotating shaft; 21. mounting port; 22. stirring blades; 31. connecting flange; 32. exhaust port; 33. air inlet; 34. partition plate; 4. thermocouple; 5. temperature display; 6. drive motor; 7. connecting cylinder; 71. rotary conductive joint; 72. interface; 81. fan; 82. air inlet pipe; 83. air supply sleeve. Detailed Implementation

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] This application discloses a polymerization reactor for producing cyclized rubber, referring to... Figure 1 , Figure 2 and Figure 3 The apparatus includes a vessel body 1, which comprises a vessel frame and a vessel lid. A stirring assembly is installed inside the vessel body 1, including a rotating shaft 2. The rotating shaft 2 is coaxially mounted inside the vessel body 1 and rotatably connected to the vessel body 1. Multiple stirring blades 22 are spirally arranged on the outer wall of the rotating shaft 2. An installation space is provided inside the rotating shaft 2, and a thermocouple 4 is installed inside each stirring blade 22. The sensing end of the thermocouple 4 passes through and extends out of the stirring blade 22. A first drive assembly for driving the rotating shaft 2 to rotate is located at the top of the vessel body 1. A temperature display 5 is installed on the vessel body 1, and multiple thermocouples 4 are electrically connected to the temperature display 5. The internal temperature of the material at different heights within the vessel body 1 is detected by the thermocouples 4, and the temperature values ​​detected by the thermocouples 4 are displayed on the temperature display 5 for intuitive observation by the operator.

[0021] Specifically, the first drive assembly includes a drive motor 6, with the top end of the rotating shaft 2 extending out of the vessel lid of the vessel body 1, and a driven gear coaxially fixedly mounted on the top end of the rotating shaft 2. The drive motor 6 is fixedly mounted on the vessel lid, and the output end of the drive motor 6 is connected to the drive gear, which meshes with the driven gear. Several mounting ports 21 are provided on the side wall of the rotating shaft 2. The stirring blade 22 is hollow inside, and a connecting flange 31 is integrally fixed to one end of the stirring blade 22 near the rotating shaft 2. The connecting flange 31 is fixedly connected to the rotating shaft 2 by bolts. The thermocouple 4 is detachably installed inside the stirring blade 22. By disassembling the stirring blade 22 and the thermocouple 4, the thermocouple 4 can be repaired or replaced.

[0022] Reference Figure 4In this embodiment, a connecting cylinder 7 is detachably installed inside the rotating shaft 2. The connecting cylinder 7 has several interfaces 72 for thermocouples 4 to be inserted. The interfaces 72 on the connecting cylinder 7 correspond one-to-one with the mounting ports 21 on the rotating shaft 2. Several rod connecting pieces are fixed to the top of the connecting cylinder 7, and several mounting pieces are fixed to the inner wall of the rotating shaft 2. The mounting pieces and connecting pieces are connected and installed by bolts. A rotary conductive connector 71 is installed on the top of the connecting cylinder 7. The temperature display 5 is connected to each thermocouple 4 through the rotary conductive connector 71, so that the temperature display 5 remains connected to each thermocouple 4 when the rotating shaft 2 rotates.

[0023] Furthermore, a heat insulation layer is filled inside the stirring blade 22, and a baffle 34 is vertically installed inside the stirring blade 22. The baffle 34 divides the space between the stirring shaft and the connecting cylinder 7 into a U-shaped heat dissipation cavity. An exhaust port 32 is opened at the top of one side of the heat dissipation cavity. An air inlet 33 is opened on the outer wall of the part of the rotating shaft 2 that extends out of the lid, connecting to the other side of the heat dissipation cavity. An air supply assembly is provided at the top of the vessel body 1 for supplying air into the air inlet 33. Through the heat insulation layer in the stirring blade 22, the heat conducted to the thermocouple 4 electronic component end inside the stirring blade 22 when the material reaction in the vessel body 1 is exothermic can be reduced. Then, by supplying air into the vessel body 1 through the air supply assembly, the air in the heat dissipation cavity can be refreshed, providing conditions for the heat dissipation of the thermocouple 4 electronic component.

[0024] Specifically, the air supply assembly includes a fan 81, an air inlet pipe 82, and an air supply sleeve 83. The air supply sleeve 83 is fixedly installed on the vessel lid and rotatably mounted on the rotating shaft 2. The air supply sleeve 83 is hollow inside, and an annular air supply port is provided on the inner side wall of the air supply sleeve 83 to maintain communication with the air inlet 33 on the rotating shaft 2. The air outlet of the fan 81 is connected to the air supply sleeve 83 through the air inlet pipe 82, thereby ensuring that the fan 81 can continuously supply air into the rotating shaft 2 during the rotation of the rotating shaft 2.

[0025] Furthermore, several auxiliary blades 11 are fixedly installed on the inner wall of the vessel body 1. The end of the auxiliary blade 11 away from the inner wall of the vessel body 1 extends into the space between two vertical stirring blades 22. The tilting direction of the auxiliary blade 11 is opposite to that of the stirring blades 22. Through the synergistic action of the stirring blades 22 and the auxiliary blades 11, the material in the vessel body 1 can be stirred and mixed more evenly, and the reaction rate can be improved.

[0026] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A polymerization reactor for producing cyclic rubber, characterized in that: The apparatus includes a vessel body (1), a stirring assembly is provided inside the vessel body (1), the stirring assembly includes a rotating shaft (2), a plurality of stirring blades (22) are spirally spaced on the outer wall of the rotating shaft (2) along the axial direction of the rotating shaft (2), an installation space is coaxially provided inside the rotating shaft (2), a thermocouple (4) is provided inside the stirring blades (22), the detection end of the thermocouple (4) passes through and extends out of the stirring blades (22), a first driving assembly for driving the rotating shaft (2) to rotate is provided on the top of the vessel body (1), a temperature display (5) is provided on the vessel body (1), the thermocouple (4) is electrically connected to the temperature display (5), and the temperature display (5) is used to display the temperature detected by the thermocouple (4).

2. The polymerization reactor for producing cyclized rubber according to claim 1, characterized in that, The rotating shaft (2) has several mounting ports (21) on its side wall. The stirring blade (22) is hollow inside. A connecting flange (31) is provided at one end of the stirring blade (22) near the rotating shaft (2). The connecting flange (31) is fixedly connected to the rotating shaft (2) by bolts. The thermocouple (4) is installed inside the stirring blade (22).

3. The polymerization reactor for producing cyclized rubber according to claim 2, characterized in that, The first driving component includes a driving motor (6), the top end of the rotating shaft (2) extends out of the top of the vessel body (1) and is coaxially fixedly provided with a driven gear, the driving motor (6) is fixedly provided on the top of the vessel body (1), the output end of the driving motor (6) is connected to a driving gear, and the driving gear meshes with the driven gear.

4. The polymerization reactor for producing cyclized rubber according to claim 1, characterized in that, A connecting cylinder (7) is provided inside the rotating shaft (2). The connecting cylinder (7) is provided with several interfaces (72) for inserting thermocouples (4). The interfaces (72) correspond one-to-one with the mounting ports (21) on the rotating shaft (2). The top of the connecting cylinder (7) is detachably connected to the top of the rotating shaft (2). A rotary conductive connector (71) is provided on the top of the connecting cylinder (7). The temperature display (5) is connected to each thermocouple (4) through the rotary conductive connector (71).

5. A polymerization reactor for producing cyclized rubber according to claim 1, characterized in that, The stirring blade (22) is filled with a heat insulation layer. A partition (34) is vertically arranged inside the stirring blade (22). The partition (34) divides the rotating shaft (2) into a U-shaped heat dissipation cavity. An exhaust port (32) is opened at the top of one side of the heat dissipation cavity. An air inlet (33) is opened on the rotating shaft (2) to connect to the other side of the heat dissipation cavity. An air supply component for supplying air to the air inlet (33) is provided on the top of the vessel body (1).

6. A polymerization reactor for producing cyclized rubber according to any one of claims 1 to 5, characterized in that, A number of auxiliary blades (11) are fixedly arranged on the inner wall of the vessel body (1). The end of the auxiliary blade (11) away from the inner wall of the vessel body (1) extends into the space between two stirring blades (22) in the vertical direction. The tilting direction of the auxiliary blade (11) is opposite to that of the stirring blade (22).

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