Sealing structure for polymerization reaction kettle

Abstract

The utility model provides a sealing structure for a polymerization reaction kettle, which relates to the field of reaction kettles, and comprises a reaction kettle main body, a feeding component and a stirring device, by rotating a valve component, the valve component is in a closed state when being vertical to a feeding channel, a connecting component is detached, and the stirring device is connected with the feeding component. The feeding cover is opened in a rotating mode along the center shaft of the rotating hinge, reaction materials are added into the feeding channel, then the feeding cover is closed by rotating along the center shaft of the rotating hinge, the connecting component is installed again, the valve component is rotated again, and when the valve component is parallel to the feeding channel, the valve component is in an open state. The valve component can be used as a sealing structure when the materials are added into the reaction kettle, so that the pressure of the reaction in the reaction kettle and the gas generated by the reaction are prevented from escaping from the feeding hole, the pressure and reaction conditions in the reaction kettle are guaranteed, and the reaction working efficiency of the reaction kettle is improved.

Description

Technical Field

[0001] The utility model relates to the field of reaction kettles, in particular to a sealing structure for a polymerization reaction kettle. Background Art

[0002] A polymerization reaction kettle is an important chemical engineering device for carrying out polymerization reactions, and is widely used in process industries such as petrochemical and rubber industries. It is a pressure vessel used to complete processes such as vulcanization, digestion, and hydrogenation. Its design aims to provide suitable environmental conditions for chemical reactions, including precise temperature control, good stirring effect to ensure uniform mixing of materials, and effective pressure regulation function;

[0003] During the reaction process of the reaction kettle, when adding materials, most of the current feeding methods adopt gravity feeding. During the feeding process, the feeding port is opened, and the materials are put into the reaction kettle. During the feeding process, since the reaction kettle is in the reaction process, the internal reaction pressure and the generated gas will escape from the feeding port, which will cause changes in the required pressure and reaction environment inside the reaction kettle, and even lead to deviations in the reaction results of the reaction kettle, making it difficult to control the reaction efficiency of the reaction kettle and reducing the reaction working efficiency of the reaction kettle.

[0004] Therefore, it is necessary to provide a new sealing structure for a polymerization reaction kettle to solve the above technical problems. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a sealing structure for a polymerization reaction kettle.

[0006] The sealing structure for a polymerization reaction kettle provided by the utility model includes: a reaction kettle main body, a feeding member, and a stirring device. The stirring device penetrates the top surface of the reaction kettle main body, and one end of the stirring device extends into the reaction kettle main body;

[0007] The feeding member includes a feeding channel, a feeding cover, and a valve member. The bottom end of the feeding channel is fixedly connected to the top of the reaction kettle main body. One side of the bottom end of the feeding cover is rotatably connected to one side of the top end of the feeding channel through a rotating hinge. The other side of the bottom end of the feeding cover is detachably connected to the other side of the top end of the feeding channel through a connecting member. The valve member penetrates the surface of the feeding channel, and one end of the valve member extends into the feeding channel, and the outer surface of the valve member is fitted with the inner side wall of the feeding channel.

[0008] Preferably, the valve member includes a spherical valve core, a valve wrench, and a limiting body. The outer surface of the spherical valve core is fitted with the inner wall of the feeding channel. One end of the valve wrench penetrates the surface of the feeding channel and extends into the feeding channel. And the end of the valve wrench extending into the feeding channel is fixedly connected to one side of the spherical valve core. A feeding through hole is formed in the spherical valve core. The limiting body is sleeved on the surface of the valve wrench, and one end of the limiting body is fixedly connected to the surface of the feeding channel.

[0009] Preferably, the connecting member includes a connecting body, a gasket, a nut, and two connecting blocks. One side of the connecting body is fixedly connected to the surface of the feeding cover. One side of each of the two connecting blocks is fixedly connected to the top end of one side of the feeding channel. A connecting hole matching the connecting body is formed on the surface of the gasket. The connecting body penetrates the surface of the gasket and is located inside the connecting hole. The nut is sleeved on the surface of the connecting body, and the nut is detachably connected to the connecting body. The top of the gasket is fitted with the bottoms of the two connecting blocks, and the bottom of the gasket is fitted with the top of the nut.

[0010] Preferably, the connecting body includes a fixing block and a connecting bolt. One side of the fixing block is fixedly connected to one side of the feeding cover. The size of the connecting hole is the same as the cross-sectional size of the connecting bolt. The connecting bolt penetrates the surface of the gasket and is located inside the connecting hole. The nut is sleeved on the surface of the connecting bolt, and the nut is detachably connected to the connecting bolt.

[0011] Preferably, the stirring device includes a stirring rod, a support frame, and a motor. The stirring rod penetrates the top surface of the reaction kettle main body and extends into the reaction kettle main body. A stirring blade is fixedly provided at one end of the stirring rod extending into the reaction kettle main body. And the other end of the stirring rod is fixedly connected to the output end of the motor. The bottom of the support frame is fixedly connected to the top end of the reaction kettle main body, and the top of the support frame is fixedly connected to the bottom of the motor.

[0012] Preferably, a connecting pipe is fixedly provided on one side of the reaction kettle main body, and a discharge port is fixedly provided at the bottom of the reaction kettle main body.

[0013] Compared with the related art, a sealing structure for a polymerization reaction kettle provided by the present utility model has the following beneficial effects:

[0014] When the reactor needs to add materials during the reaction process, first rotate the valve member. When the valve member is perpendicular to the feeding channel, the valve member is in a closed state. At this time, disassemble the connecting member, and then rotate the feeding cover along the central axis of the rotating hinge to open it. At this time, add the reaction materials into the feeding channel, and then rotate the feeding cover along the central axis of the rotating hinge to close it. At this time, reinstall the connecting member so that the feeding cover is in close contact with the feeding channel. Then rotate the valve member again. When the valve member is parallel to the feeding channel, the valve member is in an open state, allowing the reaction materials to enter the reactor body for reaction. Through the linkage cooperation between the above components, the operation of adding materials to the reactor is completed at this time. The valve member can be used as a temporary sealing structure when adding materials to the inside of the reactor, ensuring that the pressure inside the reactor during the reaction and the generated gas do not escape from the feeding port, ensuring the internal pressure and reaction conditions of the reactor, as well as protecting the safety of the personnel adding materials and improving the reaction efficiency of the reactor. Description of the Drawings

[0015] Figure 1 Schematic diagram of the overall structure of a sealing structure for a polymerization reactor provided by the present utility model;

[0016] Figure 2 Partial sectional view of a sealing structure for a polymerization reactor provided by the present utility model;

[0017] Figure 3 Schematic diagram of the overall structure of the feeding component provided by the present utility model;

[0018] Figure 4 For Figure 3 Enlarged view of part A shown;

[0019] Figure 5 Schematic diagram of the overall structure of another state of the feeding component provided by the present utility model;

[0020] Figure 6 For Figure 5 Enlarged view of part B shown;

[0021] Figure 7 Overall sectional view of the feeding device provided by the present utility model;

[0022] Figure 8 Exploded view of the valve member provided by the present utility model.

[0023] Reference numerals in the figure: 1, main body of the reaction kettle; 2, feeding member; 3, stirring device; 4, feeding channel; 5, feeding cover; 6, valve member; 7, rotating hinge; 8, connecting member; 9, spherical valve core; 10, valve wrench; 11, limiting body; 12, connecting body; 13, gasket; 14, nut; 15, connecting block; 16, connecting hole; 17, fixing block; 18, connecting bolt; 19, stirring rod; 20, support frame; 21, motor; 22, stirring blade; 23, connecting pipe; 24, discharge port. Detailed implementation mode

[0024] The present utility model will be further described below in conjunction with the accompanying drawings and the implementation mode.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , where

[0026] Figure 1 is the overall structure schematic diagram of a sealing structure for a polymerization reaction kettle provided by the present utility model;

[0027] Figure 2 is the partial cross-sectional schematic diagram of a sealing structure for a polymerization reaction kettle provided by the present utility model;

[0028] Figure 3 is the overall structure schematic diagram of the feeding member provided by the present utility model; Figure 4 is Figure 3 the enlarged view at position A shown; Figure 5 is the overall structure schematic diagram of another state of the feeding member provided by the present utility model; Figure 6 is Figure 5 the enlarged view at position B shown; Figure 7 is the overall cross-sectional schematic diagram of the feeding device provided by the present utility model; Figure 8 is the split structure schematic diagram of the valve member provided by the present utility model.

[0029] In the specific implementation process, as Figures 1 - 8 shown, a sealing structure for a polymerization reaction kettle provided by the present utility model includes a main body 1 of the reaction kettle, a feeding member 2 and a stirring device 3. The stirring device 3 penetrates through the top surface of the main body 1 of the reaction kettle, and one end of the stirring device 3 extends into the main body 1 of the reaction kettle;

[0030] The feeding member 2 includes a feeding channel 4, a feeding cover 5 and a valve member 6. The bottom end of the feeding channel 4 is fixedly connected to the top of the reactor main body 1. One side of the bottom end of the feeding cover 5 is rotatably connected to one side of the top end of the feeding channel 4 through a rotating hinge 7. The other side of the bottom end of the feeding cover 5 is detachably connected to the other side of the top end of the feeding channel 4 through a connecting member 8. The valve member 6 penetrates the surface of the feeding channel 4, and one end of the valve member 6 extends into the feeding channel. The outer surface of the valve member 6 is fitted with the inner side wall of the feeding channel 4;

[0031] It should be noted that the detachable connection method through the connecting member 8 is a bolt connection, and the feeding channel 4 is communicated with the inside of the reactor main body 1.

[0032] The valve member 6 includes a spherical valve core 9, a valve wrench 10 and a limiting body 11. The outer surface of the spherical valve core 9 is fitted with the inner side wall of the feeding channel 4. One end of the valve wrench 10 penetrates the surface of the feeding channel 4 and extends into the feeding channel 4. The end of the valve wrench 10 extending into the feeding channel 4 is fixedly connected to one side of the spherical valve core 9. A feeding through hole is opened inside the spherical valve core 9. The limiting body 11 is sleeved on the surface of the valve wrench 10, and one end of the limiting body 11 is fixedly connected to the surface of the feeding channel 4;

[0033] It should be noted that when the valve wrench 10 is perpendicular to the feeding channel 4, the spherical valve core 9 is in a closed state. When the valve wrench 10 is parallel to the feeding channel 4, the spherical valve core 9 is in an open state. The size of the feeding through hole opened inside the spherical valve core 9 is communicated with the inner side wall of the feeding channel 4. The limiting body 11 is used to limit the valve wrench 10 in the open state and the closed state.

[0034] The connecting member 8 includes a connecting body 12, a gasket 13, a nut 14 and two connecting blocks 15. One side of the connecting body 12 is fixedly connected to the surface of the feeding cover 5. One side of each of the two connecting blocks 15 is fixedly connected to the top end of one side of the feeding channel 4. A connecting hole 16 matching the connecting body 12 is opened on the surface of the gasket 13. The connecting body 12 penetrates the surface of the gasket 13 and is located inside the connecting hole 16. The nut 14 is sleeved on the surface of the connecting body 12, and the nut 14 is detachably connected to the connecting body 12. The top of the gasket 13 is fitted with the bottom of the two connecting blocks 15, and the bottom of the gasket 13 is fitted with the top of the nut 14;

[0035] It should be noted that the space between the two connecting blocks 15 allows the connecting body 12 to enter, enabling a better tight connection between the feeding channel 4 and the feeding cover 5 and ensuring the sealing between the two.

[0036] The connecting body 12 includes a fixed block 17 and a connecting bolt 18. One side of the fixed block 17 is fixedly connected to one side of the feeding cover 5. The size of the connecting hole 16 is the same as the cross-sectional size of the connecting bolt 18. The connecting bolt 18 passes through the surface of the gasket 13 and is located inside the connecting hole 16. The nut 14 is sleeved on the surface of the connecting bolt 18, and the nut 14 is detachably connected to the connecting bolt 18;

[0037] It should be noted that the connection between the connecting bolt 18 and the nut 14 with the cooperation of the gasket 13 can enable a better connection between the fixed block 17 and the two connecting blocks 15, and at the same time enable a better tight connection between the feeding channel 4 and the feeding cover 5.

[0038] The stirring device 3 includes a stirring rod 19, a support frame 20 and a motor 21. The stirring rod 19 passes through the top surface of the reaction kettle body 1 and extends into the reaction kettle body 1. One end of the stirring rod 19 extending into the reaction kettle body 1 is fixedly provided with a stirring blade 22, and the other end of the stirring rod 19 is fixedly connected to the output end of the motor 21. The bottom of the support frame 20 is fixedly connected to the top end of the reaction kettle body 1, and the top of the support frame 20 is fixedly connected to the bottom of the motor 21.

[0039] A connecting pipe 23 is fixedly provided on one side of the reaction kettle body 1, and a discharge port 24 is fixedly provided at the bottom of the reaction kettle body 1.

[0040] The working principle provided by the present utility model is as follows:

[0041] When materials need to be added during the reaction of the reaction kettle, first rotate the valve wrench 10. When the valve wrench 10 rotates to be perpendicular to the feeding channel 4, the spherical valve core 9 is in a closed state. At this time, rotate the nut 14 on the connecting bolt 18 and remove the nut 14. The gasket 13 loses its limit, and the two connecting blocks 15 and the fixed block 17 together lose their limits. At this time, rotate the feeding cover 5 along the central axis of the rotating hinge 7 to open the feeding cover 5. At this time, pour the added materials into the feeding channel 4, then rotate the feeding cover 5 along the central axis of the rotating hinge 7 to close the feeding cover 5. At this time, sleeve the gasket 13 on the surface of the connecting bolt 18, and then rotate the nut 14 to drive the gasket 13 to move towards the two connecting blocks 15 until the gasket 13 contacts the bottom surfaces of the two connecting blocks 15, so that the feeding cover 5 is in close contact with the feeding channel 4. At this time, rotate the valve wrench 10 again. When the valve wrench 10 rotates to be parallel to the feeding channel 4, the spherical valve core 9 is in an open state, enabling the reaction materials to enter the reaction kettle body 1 for reaction. At this time, the operation of adding materials during the reaction of the reaction kettle is completed.

[0042] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A sealing structure for a polymerization reactor, characterized in that, Comprising: A reactor main body (1), a feeding member (2), and a stirring device (3). The stirring device (3) penetrates through the top surface of the reactor main body (1), and one end of the stirring device (3) extends into the reactor main body (1). The feeding member (2) includes a feeding channel (4), a feeding cover (5), and a valve member (6). The bottom end of the feeding channel (4) is fixedly connected to the top of the reactor main body (1). One side of the bottom end of the feeding cover (5) is rotatably connected to one side of the top end of the feeding channel (4) through a rotating hinge (7). The other side of the bottom end of the feeding cover (5) is detachably connected to the other side of the top end of the feeding channel (4) through a connecting member (8). The valve member (6) penetrates through the surface of the feeding channel (4), and one end of the valve member (6) extends into the feeding channel. The outer surface of the valve member (6) is in contact with the inner wall of the feeding channel (4).

2. The sealing structure for a polymerization reactor according to claim 1, characterized in that, The valve member (6) includes a spherical valve core (9), a valve wrench (10), and a limiting body (11). The outer surface of the spherical valve core (9) is in contact with the inner wall of the feeding channel (4). One end of the valve wrench (10) penetrates through the surface of the feeding channel (4) and extends into the feeding channel (4). The end of the valve wrench (10) extending into the feeding channel (4) is fixedly connected to one side of the spherical valve core (9). A feeding through hole is provided inside the spherical valve core (9). The limiting body (11) is sleeved on the surface of the valve wrench (10), and one end of the limiting body (11) is fixedly connected to the surface of the feeding channel (4).

3. The sealing structure for a polymerization reactor according to claim 2, characterized in that, The connecting member (8) includes a connecting body (12), a gasket (13), a nut (14), and two connecting blocks (15). One side of the connecting body (12) is fixedly connected to the surface of the feeding cover (5). One side of each of the two connecting blocks (15) is fixedly connected to the top end of one side of the feeding channel (4). A connecting hole (16) matching the connecting body (12) is provided on the surface of the gasket (13). The connecting body (12) penetrates through the surface of the gasket (13) and is located inside the connecting hole (16). The nut (14) is sleeved on the surface of the connecting body (12), and the nut (14) is detachably connected to the connecting body (12). The top of the gasket (13) is in contact with the bottoms of the two connecting blocks (15), and the bottom of the gasket (13) is in contact with the top of the nut (14).

4. The sealing structure for a polymerization reactor according to claim 3, characterized in that, The connecting body (12) includes a fixing block (17) and a connecting bolt (18). One side of the fixing block (17) is fixedly connected to one side of the feeding cover (5). The size of the connecting hole (16) is the same as the cross-sectional size of the connecting bolt (18). The connecting bolt (18) penetrates through the surface of the gasket (13) and is located inside the connecting hole (16). The nut (14) is sleeved on the surface of the connecting bolt (18), and the nut (14) is detachably connected to the connecting bolt (18).

5. The sealing structure for a polymerization reactor according to claim 4, characterized in that, The stirring device (3) includes a stirring rod (19), a support frame (20), and a motor (21). The stirring rod (19) penetrates the top surface of the reaction kettle body (1) and extends into the reaction kettle body (1). One end of the stirring rod (19) extending into the reaction kettle body (1) is fixedly provided with stirring blades (22), and the other end of the stirring rod (19) is fixedly connected to the output end of the motor (21). The bottom of the support frame (20) is fixedly connected to the top end of the reaction kettle body (1), and the top of the support frame (20) is fixedly connected to the bottom of the motor (21).

6. The sealing structure for the polymerization reactor according to claim 5, characterized in that, A connecting pipe (23) is fixedly provided on one side of the reaction kettle body (1), and a discharge port (24) is fixedly provided at the bottom of the reaction kettle body (1).

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