Reaction kettle for synthesizing high-viscosity materials

Abstract

The utility model provides a reaction kettle for synthesizing high-viscosity materials, which comprises a kettle body, the bottom of the kettle body is fixedly connected with a base, the top of the kettle body is provided with a top cover, the top of the top cover is provided with a stirring mechanism, and an inner cavity of the kettle body is provided with a heat exchange mechanism. A discharging pipe and a nitrogen pipe are arranged at the bottom of the base, a feeding pipe and an emptying pipe are fixedly connected to an inner cavity of the top cover, the stirring mechanism comprises a motor, the motor is located at the top of the top cover, the output end of the motor is fixedly connected with a stirring rod, and stirring blades are fixedly connected to the outer side of the stirring rod. The reaction kettle for synthesizing the high-viscosity material solves the problem that although the heat conduction efficiency is improved by arranging the heat conduction pipe, the device only stirs through the lowermost stirring blade, and the stirring effect is poorer.

Description

Technical Field

[0001] The utility model relates to the technical field of xx, and in particular to a reaction kettle for synthesizing high-viscosity materials. Background Art

[0002] Silicone rubber is one of the main downstream products of silicone, and it occupies an important market share. In order to ensure the stability of the quality of silicone rubber products, the control of the synthesis reaction process is particularly important. The synthesis reaction is generally carried out in a synthesis reactor, and the polymerization is carried out by heating through the reactor jacket. After the polymerization begins, the viscosity of the silicone rubber rises rapidly. At this time, the temperature required for the synthesis reaction can only be reached from the steam supply from the jacket. The heat transfer effect is not ideal, and the silicone rubber material with a higher viscosity can no longer be mechanically stirred. Usually, the temperature near the edge of the reactor is high and the temperature in the center is low, which eventually leads to the difference in polymerization between the edge and the center of the reactor, affecting the stability of the silicone rubber.

[0003] The patent document with announcement number: CN217568744U discloses "a heat-equalizing reaction device for the synthesis of high-viscosity silicone rubber", which involves adding a heat pipe in the kettle and connecting the heat pipe with the jacket of the reactor to form a heat conduction loop, which can increase the heat transfer area and improve the heat transfer efficiency; the material can directly contact the heat pipe to transfer heat, so that the heat is more evenly transmitted to the center of the reactor, avoiding the viscosity increasing too quickly during the silicone rubber synthesis process, causing the temperature difference problem of polymerization at the edge and center of the kettle.

[0004] Although the device solves the problem of temperature difference between the edge and the center of the reactor by setting up a heat pipe, the device only stirs through the lowest stirring blade, and the stirring effect is poor. Therefore, it is necessary to provide an easy-to-use reactor for synthesizing high-viscosity materials to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an easy-to-use reaction kettle for synthesizing high-viscosity materials.

[0006] The utility model provides a reactor for synthesizing high-viscosity materials, comprising a reactor body, wherein the bottom of the reactor body is fixedly connected with a base, the top of the reactor body is provided with a top cover, the top of the top cover is provided with a stirring mechanism, the inner cavity of the reactor body is provided with a heat exchange mechanism, the bottom of the base is respectively provided with a discharge pipe and a nitrogen pipe, and the inner cavity of the top cover is respectively fixedly connected with a feed pipe and a vent pipe.

[0007] In order to stir the material, the utility model provides a reactor for synthesizing high-viscosity materials. Preferably, the stirring mechanism includes a motor, the motor is located on the top of the top cover, the output end of the motor is fixedly connected to a stirring rod, and the outer side of the stirring rod is fixedly connected to a stirring blade.

[0008] In order to improve the stability of the motor, the utility model provides a reactor for synthesizing high-viscosity materials. Preferably, the stirring mechanism also includes a fixing frame, the outer side of the motor is fixedly connected with the fixing frame, and the bottom of the fixing frame is fixedly connected to the top of the top cover.

[0009] In order to improve the heat transfer efficiency, the utility model provides a reactor for synthesizing high-viscosity materials. Preferably, the heat exchange mechanism includes a heat exchange loop pipe, and the outer sides of the heat exchange loop pipe are respectively connected to a heat inlet pipe and a heat outlet pipe, one end of the heat inlet pipe is connected to a first external pipe, and one end of the heat outlet pipe is connected to a second external pipe.

[0010] In order to further improve the heat transfer efficiency, the utility model provides a reaction kettle for synthesizing high-viscosity materials. Preferably, the kettle body comprises an outer shell and an inner shell, and a heat exchange cavity is provided between the outer shell and the inner shell.

[0011] In order to facilitate the disassembly of the top cover, the utility model provides a reactor for synthesizing high-viscosity materials. Preferably, the outer side of the top cover is fixedly connected to a first fixed block, the outer side of the reactor body is fixedly connected to a second fixed block, and the inner cavity of the first fixed block is provided with a fixing bolt.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The reactor for synthesizing high-viscosity materials has a device that drives a stirring rod to rotate through a motor, thereby driving a stirring blade to move and stir the materials. The device is provided with a plurality of stirring blades, which greatly improves the stirring effect and is easy to use. During the stirring process, a thermal fluid enters the heat inlet pipe and the heat exchange cavity through a first external pipe, and the thermal fluid is used to conduct heat to an inner shell and a heat exchange ring pipe to heat the materials, thereby avoiding a rapid increase in the viscosity of the materials during the stirring process, which is not conducive to stirring. During the stirring process, a nitrogen pipe introduces nitrogen into the reactor body for rapid upward movement, which helps to generate convection in the materials, improve the heat transfer efficiency, and achieve consistency in heat transfer and polymerization. After the reaction is completed, the gas can be discharged through the vent pipe, thereby solving the problem that although the thermal conductivity efficiency of the current device is improved by arranging a heat conduction pipe, the device only stirs through the lowest stirring blade and the stirring effect is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a reaction kettle for synthesizing high-viscosity materials provided by the utility model;

[0015] Figure 2 It is a partial structural sectional view of the utility model;

[0016] Figure 3It is an enlarged schematic diagram of the structure of point A of the utility model.

[0017] Numbers in the figure: 1, kettle body; 101, outer shell; 102, inner shell; 103, heat exchange chamber; 2, base; 3, top cover; 4, stirring mechanism; 401, motor; 402, stirring rod; 403, stirring blade; 404, fixing frame; 5, heat exchange mechanism; 501, heat exchange ring pipe; 502, heat inlet pipe; 503, first external pipe; 504, heat outlet pipe; 505, second external pipe; 6, discharge pipe; 7, nitrogen pipe; 8, feed pipe; 9, vent pipe; 10, first fixing block; 11, second fixing block; 12, fixing bolt. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Please refer to Figure 1 , Figure 2 and Figure 3 ,in Figure 1 A schematic structural diagram of a preferred embodiment of a reaction kettle for synthesizing high-viscosity materials provided by the utility model; Figure 2 It is a partial structural sectional view of the utility model; Figure 3 It is an enlarged schematic diagram of the structure of the utility model at A. A reaction kettle for synthesizing high-viscosity materials, comprising a kettle body 1, a base 2 is fixedly connected to the bottom of the kettle body 1, a top cover 3 is arranged on the top of the kettle body 1, a stirring mechanism 4 is arranged on the top of the top cover 3, a heat exchange mechanism 5 is arranged in the inner cavity of the kettle body 1, a discharge pipe 6 and a nitrogen pipe 7 are respectively arranged at the bottom of the base 2, and a feed pipe 8 and a vent pipe 9 are respectively fixedly connected to the inner cavity of the top cover 3.

[0020] As a technical optimization solution of the utility model, the stirring mechanism 4 includes a motor 401, which is located on the top of the top cover 3, and the output end of the motor 401 is fixedly connected to a stirring rod 402, and the outer side of the stirring rod 402 is fixedly connected to a stirring blade 403.

[0021] In this embodiment, the stirring rod 402 is driven to rotate by the motor 401, which can drive the stirring blade 403 to move and stir the material. The device is provided with a plurality of stirring blades 403, which greatly improves the stirring effect and is easy to use.

[0022] As a technical optimization solution of the present invention, the stirring mechanism 4 also includes a fixing frame 404 , the outer side of the motor 401 is fixedly connected with the fixing frame 404 , and the bottom of the fixing frame 404 is fixedly connected to the top of the top cover 3 .

[0023] In this embodiment, by providing a fixing bracket 404 , it is convenient for the user to install and fix the motor 401 , thereby improving the stability of the motor 401 during use.

[0024] As a technical optimization solution of the utility model, the heat exchange mechanism 5 includes a heat exchange ring tube 501, and the outer side of the heat exchange ring tube 501 is respectively connected with a heat inlet pipe 502 and a heat outlet pipe 504, one end of the heat inlet pipe 502 is connected with a first external pipe 503, and one end of the heat outlet pipe 504 is connected with a second external pipe 505;

[0025] The kettle body 1 comprises an outer shell 101 and an inner shell 102 , and a heat exchange cavity 103 is arranged between the outer shell 101 and the inner shell 102 .

[0026] In this embodiment: connecting pipes are provided on both sides of the outer shell 101, and the two connecting pipes are connected to the top of the first external pipe 503 and the second external pipe 505 respectively. Before using this device, the first external pipe 503 and the second external pipe 505 should be connected to the external heating circulation system. The hot fluid enters the heat inlet pipe 502 and the heat exchange cavity 103 through the first external pipe 503, and the hot fluid is used to conduct heat to the inner shell 102 and the heat exchange ring pipe 501 to heat the material, so as to avoid the viscosity of the material increasing quickly during the material stirring process, which is not conducive to stirring.

[0027] As a technical optimization solution of the utility model, a first fixing block 10 is fixedly connected to the outer side of the top cover 3 , a second fixing block 11 is fixedly connected to the outer side of the kettle body 1 , and a fixing bolt 12 is provided in the inner cavity of the first fixing block 10 .

[0028] In this embodiment: when maintaining the interior of the kettle body 1 at a later stage, the user can unscrew the nut on the outside of the fixing bolt 12, and then pull the fixing bolt 12 out from the first fixing block 10 and the second fixing block 11 to release the fixation of the top cover 3. Then the user can remove the top cover 3, which is convenient for the user to inspect the interior of the kettle body 1.

[0029] The working principle of a reactor for synthesizing high-viscosity materials provided by the utility model is as follows:

[0030] The device drives the stirring rod 402 to rotate by the motor 401, which can drive the stirring blade 403 to move and stir the material. The device is provided with a plurality of stirring blades 403, which greatly improves the stirring effect and is easy to use. During the stirring process, the hot fluid enters the heat inlet pipe 502 and the heat exchange cavity 103 through the first external pipe 503, and the hot fluid is used to conduct heat to the inner shell 102 and the heat exchange ring pipe 501 to heat the material, thereby avoiding that the viscosity of the material increases rapidly during the stirring process, which is not conducive to stirring. In addition, during the stirring process, the nitrogen pipe 7 introduces nitrogen into the kettle body 1 and moves it upward quickly, which helps to generate convection in the material, improve the heat transfer efficiency, and achieve the consistency of heat transfer and polymerization. After the reaction is completed, the gas can be discharged through the vent pipe 9.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A reactor for synthesizing high viscosity materials, characterized in that: The invention comprises a kettle body (1), the bottom of the kettle body (1) is fixedly connected to a base (2), the top of the kettle body (1) is provided with a top cover (3), the top of the top cover (3) is provided with a stirring mechanism (4), the inner cavity of the kettle body (1) is provided with a heat exchange mechanism (5), the bottom of the base (2) is respectively provided with a discharge pipe (6) and a nitrogen pipe (7), and the inner cavity of the top cover (3) is respectively fixedly connected to a feed pipe (8) and a vent pipe (9).

2. The reactor for synthesizing high-viscosity materials according to claim 1, characterized in that: The stirring mechanism (4) comprises a motor (401), the motor (401) is located on the top of the top cover (3), the output end of the motor (401) is fixedly connected to a stirring rod (402), and the outer side of the stirring rod (402) is fixedly connected to a stirring blade (403).

3. The reactor for synthesizing high-viscosity materials according to claim 2, characterized in that: The stirring mechanism (4) further comprises a fixing frame (404), the outer side of the motor (401) is fixedly connected to the fixing frame (404), and the bottom of the fixing frame (404) is fixedly connected to the top of the top cover (3).

4. The reactor for synthesizing high-viscosity materials according to claim 1, characterized in that: The heat exchange mechanism (5) comprises a heat exchange loop tube (501), the outer sides of the heat exchange loop tube (501) are respectively connected to a heat inlet tube (502) and a heat outlet tube (504), one end of the heat inlet tube (502) is connected to a first external tube (503), and one end of the heat outlet tube (504) is connected to a second external tube (505).

5. The reactor for synthesizing high-viscosity materials according to claim 1, characterized in that: The kettle body (1) comprises an outer shell (101) and an inner shell (102), and a heat exchange cavity (103) is provided between the outer shell (101) and the inner shell (102).

6. The reactor for synthesizing high-viscosity materials according to claim 1, characterized in that: A first fixing block (10) is fixedly connected to the outer side of the top cover (3), a second fixing block (11) is fixedly connected to the outer side of the kettle body (1), and a fixing bolt (12) is provided in the inner cavity of the first fixing block (10).

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