Reaction kettle

Abstract

The utility model relates to a reaction kettle which comprises a reaction kettle body, a stirring assembly used for mixing a solution in the reaction kettle body is arranged in the reaction kettle body, and the stirring assembly comprises a rotating rod, a motor used for driving the rotating rod to rotate and stirring blades arranged on the rotating rod. The upper end of the rotating rod is rotatably connected to the interior of a cavity of the reaction kettle body, the rotating axis of the rotating rod coincides with the axis of the reaction kettle body, the motor is fixedly arranged on the upper end face of the reaction kettle body, the stirring blades are fixedly connected to the rotating rod, and the stirring blades are fixedly connected to the rotating rod. Heating wires for heating the stirring blades are embedded in the stirring blades. The reaction kettle has the effect of uniformly mixing and heating reaction liquid in the reaction kettle body.

Description

Technical Field

[0001] The present application relates to the technical field of reactors, and in particular to a reactor. Background Art

[0002] The broad understanding of the reactor is a container for physical or chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process are realized. The reactor body is widely used in the fields of petroleum, chemical industry, rubber, pesticides, dyes, medicine and food.

[0003] A Chinese patent with application number 202223173166.2 discloses a heating stirring kettle, which belongs to the technical field of stirring kettles, and comprises: a stirring kettle body, a kettle cover, and a stirring and heating assembly. The kettle cover is detachably mounted on the top of the stirring kettle body, and the stirring and heating assembly is located inside the stirring kettle body and the kettle cover. A built-in groove is provided inside the kettle cover. The stirring and heating assembly comprises a motor, a box body, a rotating shaft and stirring blades. The motor is arranged above the kettle cover, and the output shaft of the motor extends into the built-in groove and is fixedly connected to the top of the box body. The rotating shaft is slidably connected in the box body. The stirring blades are fixedly mounted on the side of the rotating shaft away from the box body. A heating layer is attached to the outside of the rotating shaft, and a heat-conducting sleeve is connected to the outer surface of the heating layer.

[0004] This application sets a heating layer outside the rotating shaft, and heats the reaction liquid in the reactor body through the heating layer. However, due to the small area of ​​the heating layer and the fact that the heating layer only heats the solution inside the reactor body, it is easy to cause uneven heating effect of the heating tube on the reaction liquid.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to achieve uniform heating treatment of the reaction liquid in the reactor body, the present application provides a reactor.

[0007] The present application provides a reactor, which adopts the following technical solution:

[0008] A reactor comprises a reactor body, wherein a stirring assembly for mixing a solution in the reactor body is arranged inside the reactor body, the stirring assembly comprises a rotating rod, a motor for driving the rotating rod to rotate, and a stirring blade arranged on the rotating rod, the upper end of the rotating rod is rotatably connected to the cavity of the reactor body, the rotating axis of the rotating rod coincides with the axis of the reactor body, the motor is fixedly arranged on the upper end surface of the reactor body, the stirring blade is fixedly connected to the rotating rod, and a heating wire for heating the stirring blade is embedded in the stirring blade.

[0009] By adopting the above technical solution, the reaction liquid is injected into the reactor body, the motor drives the rotating rod to rotate, and the rotating rod drives the stirring blade to fully mix the reaction liquid in the reactor body. At the same time, during the rotation of the stirring blade, the heating wire heats the stirring blade, and sufficient heat exchange is carried out between the stirring blade and the reaction liquid, thereby achieving uniform heating of the reaction liquid.

[0010] Optionally: a support frame is provided on the lower end surface of the inner cavity of the reactor body, and the lower end of the rotating rod is rotatably connected to the support frame.

[0011] The adoption of the above technical solution helps to improve the stability of the rotating rod during the rotation process.

[0012] Optionally, the stirring blades are in multiple groups, and the multiple groups of stirring blades are vertically arranged along the rotating rod.

[0013] By adopting the above technical solution, the stirring blades are divided into multiple groups. When the reaction liquid is less, the heating of the stirring blades that are not in contact with the reaction liquid is stopped, which effectively improves the utilization rate of resources and reduces costs.

[0014] Optionally: each group of the stirring blades is evenly arranged along the axis of the rotating rod, and each group of the stirring blades is provided with a support ring for supporting the stirring blades, and the support ring is connected to the stirring blades.

[0015] By adopting the above technical solution, the stability of the stirring blade during the rotation process is ensured and the service life of the stirring blade is extended.

[0016] Optionally: the inner cavity of the reactor body is provided with a cooling pipe for cooling the reaction liquid, and both ends of the cooling pipe are respectively connected to the inner wall of the reactor body.

[0017] By adopting the above technical solution, it is convenient to quickly cool the reaction liquid after heating.

[0018] Optionally, the cooling pipe is spirally arranged on the inner wall of the reactor body along the axis of the reactor body.

[0019] By adopting the above technical solution, the contact area between the cooling tube and the reaction liquid is increased, and the cooling rate of the reaction liquid is improved.

[0020] Optionally: a thermometer for detecting the temperature of the reaction liquid is provided in the reactor body.

[0021] By adopting the above technical solution, it is convenient for the staff to monitor the temperature of the reaction liquid in real time.

[0022] Optionally, the upper end of the stirring blade is inclined toward the rotation direction of the rotating rod.

[0023] By adopting the above technical solution, the stirring effect of the stirring blade on the reaction liquid is improved.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present application achieves uniform heating treatment of the reaction liquid by burying the heating wire in the stirring blade during the mixing process of the reaction liquid by the stirring blade.

[0026] 2. The present application provides a cooling tube in the reactor body to facilitate rapid cooling of the heated reaction liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of an embodiment of the present application.

[0029] In the figure, 1. reactor body; 11. reactor cover; 111. lifting ring; 12. liquid adding port; 121. sealing cover; 13. liquid outlet; 131. electric control valve; 14. support frame; 2. stirring assembly; 21. motor; 22. rotating rod; 23. stirring blade; 231. heating wire; 3. support ring; 4. cooling pipe; 41. control valve; 5. thermometer. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] A reaction kettle disclosed in the present application, such as Figure 1 and Figure 2 As shown, it includes a reactor body 1, the upper end surface of the reactor body 1 is open, and a reactor cover 11 for closing the upper end opening is arranged on the reactor body 1, and four lifting rings 111 are arranged on the upper end of the reactor cover 11 for suspending the reactor cover 11. The reactor cover 11 is provided with a liquid adding port 12 for adding the reaction liquid into the reactor body 1, and the liquid adding port 12 is connected to the cavity of the reactor body 1, and a sealing cover 121 for closing the liquid adding port 12 is arranged on the liquid adding port 12, and the sealing cover 121 is threadedly connected to the liquid adding port 12. In order to facilitate the discharge of the reaction liquid, the lower end surface of the reactor body 1 is arranged in an inverted cone shape, and a liquid outlet 13 is arranged at the bottom of the lower end surface of the reactor body 1, and the liquid outlet 13 is connected to the reactor body 1, and an electric control valve 131 for controlling the flow of the liquid outlet 13 is arranged on the liquid outlet 13.

[0032] The reactor body 1 is provided with a stirring assembly 2 for stirring the reaction liquid in the reactor body 1. The stirring assembly 2 includes a rotating rod 22, a motor 21 for driving the rotating rod 22 to rotate, and a plurality of stirring blades 23 fixedly arranged on the rotating rod 22. The upper end of the rotating rod 22 is rotatably connected to the reactor cover 11, and the upper end of the rotating rod 22 is connected to the reactor cover 11. The motor 21 is fixedly arranged on the reactor cover 11. The output shaft of the motor 21 is coaxially fixedly connected to the upper end of the rotating rod 22, and the rotating rod 22 is driven to rotate by the motor 21. In order to ensure the stability of the rotating rod 22 during the rotation process, a support frame 14 for stabilizing the rotating rod 22 is provided in the reactor body 1. The lower end of the rotating rod 22 is rotatably connected to the upper end surface of the support frame 14. The support frame 14 is provided with three legs. The three legs are circumferentially arranged on the outer side of the support frame 14 along the axis of the reactor body 1, and one end of the three legs away from the rotating rod 22 is fixedly connected to the inner wall of the reactor body 1. Multiple groups of stirring blades 23 are evenly arranged from top to bottom along the rotating rod 22 and arranged on the rotating rod 22, with a gap between two adjacent groups of stirring blades 23, wherein each group of stirring blades 23 includes three stirring blades 23, and the three stirring blades 23 in each group are arranged circumferentially along the axis of the rotating rod 22. In order to ensure that the stirring blades 23 have a better stirring effect on the reaction liquid, the stirring blades 23 of two adjacent groups do not overlap in the vertical direction, and at the same time, the upper ends of the stirring blades 23 are inclined toward the rotation direction of the rotating rod 22 to ensure that the stirring blades 23 can achieve a better stirring effect during the rotation of the rotating rod 22. In order to ensure the stability of the stirring blades 23 during the rotation process, each group of stirring blades 23 is provided with a support ring 3 for supporting the stirring blades 23, the support ring 3 is arranged horizontally, and the support ring 3 is sequentially connected to the three stirring blades 23, and the support ring 3 is welded between the three stirring blades 23.

[0033] A heating wire 231 for heating the reaction liquid is arranged on the stirring blade 23, and the heating wire 231 is buried in the stirring blade 23. In order to increase the heating rate of the reaction liquid by the heating wire 231, the stirring blade 23 is made of a metal material with good thermal conductivity and does not chemically react with the reaction liquid in the reactor body 1. In order to achieve precise heating treatment of the reaction liquid at different liquid levels. A rotating conductive ring for powering the heating wire 231 is arranged between the rotating rod 22 and the support frame 14. The rotating conductive ring is fixedly connected to the support frame 14. The heating wires 231 on each group of stirring blades 23 are electrically connected in series to the rotating conductive ring. Different groups of stirring blades 23 are controlled by an external control system for segmented heating, which effectively improves the energy-saving efficiency of the equipment.

[0034] In order to improve the cooling effect of the reactor body 1 on the reaction liquid, a cooling pipe 4 for cooling the reaction liquid is arranged in the reactor body 1, and the two ends of the cooling pipe 4 are respectively connected to the inner wall of the reactor body 1, and the two ends of the cooling pipe 4 located outside the reactor body 1 are provided with control valves 41. By connecting the control valves 41 at both ends of the cooling pipe 4 with external refrigeration equipment, the coolant in the external refrigeration equipment circulates in the cooling pipe 4, thereby cooling the reaction liquid in the reactor body 1. The two ends of the cooling pipe 4 are respectively arranged on the upper and lower sides of the reactor body 1, and the cooling pipe 4 located in the reactor body 1 is spirally arranged on the inner wall of the reactor body 1 along the axis of the reactor body 1, so as to ensure a uniform cooling effect on the reaction liquid in the reactor body 1.

[0035] In order to facilitate real-time monitoring of the temperature of the reaction liquid in the reactor body 1, a thermometer 5 for monitoring the temperature of the reaction liquid is provided on the bottom surface of the reactor body 1. The thermometer 5 and the heating wire 231 are electrically connected to the external control system to facilitate timely adjustment of the temperature of the reaction liquid to ensure processing quality.

[0036] The implementation principle of this embodiment is:

[0037] The reaction liquid is injected into the reactor body 1 along the liquid inlet 12 of the reactor body 1, the sealing cover 121 is screwed onto the liquid inlet 12, and the motor 21 is started. The motor 21 drives the rotating rod 22 to rotate, thereby driving the stirring blade 23 to mix the reaction liquid in the reactor body 1. During the stirring process, the heating wire 231 in the stirring blade 23 is used to heat the reaction liquid in the reactor body 1. When the reaction liquid after heating needs to be cooled, the control valves 41 at both ends of the cooling pipe 4 are opened, and the cooling liquid is transported to the cooling pipe 4 through the external refrigeration equipment. The cooling liquid circulating in the cooling pipe 4 further cools the reaction liquid in the reactor body 1.

[0038] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A reactor, comprising a reactor body (1), characterized in that: The reactor body (1) is provided with a stirring assembly (2) for mixing the solution in the reactor body (1), the stirring assembly (2) comprising a rotating rod (22), a motor (21) for driving the rotating rod (22) to rotate, and a stirring blade (23) arranged on the rotating rod (22), the upper end of the rotating rod (22) is rotatably connected to the cavity of the reactor body (1), the rotating axis of the rotating rod (22) coincides with the axis of the reactor body (1), the motor (21) is fixedly arranged on the upper end surface of the reactor body (1), the stirring blade (23) is fixedly connected to the rotating rod (22), and a heating wire (231) for heating the stirring blade (23) is embedded in the stirring blade (23).

2. A reaction kettle according to claim 1, characterized in that: A support frame (14) is provided on the lower end surface of the inner cavity of the reactor body (1), and the lower end of the rotating rod (22) is rotatably connected to the support frame (14).

3. A reaction kettle according to claim 1, characterized in that: The stirring blades (23) are multiple groups, and the multiple groups of stirring blades (23) are arranged vertically along the rotating rod (22).

4. A reaction kettle according to claim 1, characterized in that: Each group of the stirring blades (23) is evenly arranged along the axis of the rotating rod (22), and each group of the stirring blades (23) is provided with a support ring (3) for supporting the stirring blades (23), and the support ring (3) is connected to the stirring blades (23).

5. A reaction kettle according to claim 1, characterized in that: The inner cavity of the reactor body (1) is provided with a cooling pipe (4) for cooling the reaction liquid, and both ends of the cooling pipe (4) are respectively connected to the inner wall of the reactor body (1).

6. A reaction kettle according to claim 5, characterized in that: The cooling pipe (4) is spirally arranged on the inner wall of the reactor body (1) along the axis of the reactor body (1).

7. A reaction kettle according to claim 1, characterized in that: A thermometer (5) for detecting the temperature of the reaction liquid is arranged in the reactor body (1).

8. A reaction kettle according to claim 1, characterized in that: The upper end of the stirring blade (23) is arranged to be inclined toward the rotation direction of the rotating rod (22).

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