A hydroformylation catalyst reaction apparatus

Abstract

The utility model discloses a kind of hydroformylation catalyst reaction devices, including jar body, first stirring shaft is rotatably installed in jar body, first stirring blade is installed on first stirring shaft, fixed shaft is rotatably installed in first stirring shaft, the top of fixed shaft is arranged in the transmission cavity of first stirring shaft, two second stirring shafts are rotatably installed in the both sides of transmission cavity, two second stirring shafts are all installed with second stirring blade, the one end of two second stirring shafts is all installed with second bevel gear, the top of fixed shaft is installed with first bevel gear. The utility model can make first stirring shaft drive first stirring blade and two second stirring shafts horizontal rotation stirring liquid by setting motor and driving first stirring shaft rotation, by setting fixed shaft, first bevel gear and second bevel gear cooperation, it can drive two second stirring shafts autorotation when first stirring shaft rotates, make second stirring blade drive second stirring blade vertical rotation stirring liquid, to improve stirring efficiency.

Description

Technical Field

[0001] This utility model relates to the field of reaction equipment technology, specifically to a hydroformylation catalyst reaction device. Background Technology

[0002] Hydroformylation catalysts are among the earliest complexing catalysts used in industrial production. They react olefins with syngas (CO + H2) in the presence of the catalyst to produce aldehydes with an additional carbon atom. For example, propionaldehyde and butyraldehyde are produced from ethylene and propylene via hydroformylation. The preparation of hydroformylation catalysts requires a reaction apparatus. This apparatus not only provides a high-temperature, high-pressure reaction environment but also allows for stirring of the liquid phase to accelerate the reaction. However, most existing reaction apparatuses use a motor-driven stirring shaft to rotate the stirring blades horizontally, resulting in a single stirring mode and low stirring efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a hydroformylation catalyst reaction apparatus to solve the problems mentioned in the background art.

[0004] To achieve this objective, the present invention adopts the following technical solution: A hydroformylation catalyst reaction apparatus includes a tank body. A first stirring shaft is rotatably mounted on the top of the inner cavity of the tank body. A transmission cavity is provided in the middle section of the first stirring shaft. A first stirring blade is mounted on the first stirring shaft. An axially fixed shaft is rotatably mounted inside the first stirring shaft via a bearing. The top end of the fixed shaft is located in the transmission cavity. A fixing frame is installed inside the tank body. The fixing frame is located below the first stirring shaft. The bottom end of the fixed shaft is fixed to the fixing frame. A motor is mounted on the top of the tank body. The output shaft of the motor is connected to the first stirring shaft via a coupling. Two second stirring shafts are rotatably mounted on both sides of the transmission cavity via bearings. Second stirring blades are installed on the portions of the two second stirring shafts located outside the transmission cavity. Second bevel gears are installed on the ends of the two second stirring shafts located inside the transmission cavity. A first bevel gear is installed at the top of the fixed shaft, and the first bevel gear meshes with the two second bevel gears simultaneously.

[0005] As a preferred embodiment of the hydroformylation catalyst reaction device, a pressure gauge is installed on the top of the tank. Two vertically distributed annular tubes are installed in the lower part of the inner cavity of the tank via a bracket. A first stirring shaft passes through the inside of the two annular tubes. Multiple evenly distributed air holes are provided on both annular tubes. An air inlet pipe is provided near the inner wall of the tank. The air inlet pipe has two outlets, which are respectively connected to the two annular tubes. The top of the air inlet pipe passes through the top of the tank. An inlet is provided at the top of the air inlet pipe, and a fourth valve is installed at the inlet.

[0006] As a preferred embodiment of the hydroformylation catalyst reaction device, a temperature sensor is installed on the inner wall of the tank near the bottom, and a shell is installed on the outer side of the tank, with multiple coils of heating wires arranged on the inner side of the shell.

[0007] As a preferred embodiment of the hydroformylation catalyst reaction device, the top of the tank is provided with a feed inlet and an exhaust outlet, a first valve is installed on the feed inlet, and a second valve is installed on the exhaust outlet.

[0008] As a preferred embodiment of the hydroformylation catalyst reaction device, the bottom of the tank is provided with a discharge port, and a third valve is installed on the discharge port.

[0009] The beneficial effects of this utility model are: The hydroformylation catalyst reaction device of this invention uses a motor to drive the first stirring shaft to rotate, which in turn drives the first stirring blade and two second stirring shafts to rotate horizontally. The first stirring blade rotates horizontally to stir the liquid. By setting a fixed shaft and cooperating with the first bevel gear and the second bevel gear, the two second stirring shafts can be driven to rotate on their own when the first stirring shaft rotates, which in turn drives the second stirring blade to rotate vertically to stir the liquid, thereby improving the stirring efficiency. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of the hydroformylation catalyst reaction device described in this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of the tank described in this utility model.

[0013] Figure 3 This is a schematic diagram of the internal structure of the first stirring shaft described in this utility model.

[0014] Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle.

[0015] Figure 5 This is a schematic diagram of the internal structure of the shell described in this utility model.

[0016] In the picture: 1. Tank body; 1-1. Inlet; 1-2. Exhaust port; 1-3. Discharge port; 2. First stirring shaft; 2-1. Transmission cavity; 3. First stirring blade; 4. Motor; 5. Fixing frame; 6. Fixing shaft; 7. Second stirring shaft; 8. Second stirring blade; 9. First bevel gear; 10. Second bevel gear; 11. Annular pipe; 12. Air inlet pipe; 13. Temperature sensor; 14. Pressure gauge; 15. First valve; 16. Second valve; 17. Third valve; 18. Fourth valve; 19. Shell; 20. Heating wire. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0019] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figures 1 to 5As shown, this utility model provides a hydroformylation catalyst reaction device, including a tank body 1. A first stirring shaft 2 is rotatably mounted on the top of the inner cavity of the tank body 1. A transmission cavity 2-1 is provided in the middle section of the first stirring shaft 2. A first stirring blade 3 is mounted on the first stirring shaft 2. An axial fixed shaft 6 is rotatably mounted inside the first stirring shaft 2 through a bearing. The top end of the fixed shaft 6 is located in the transmission cavity 2-1. A fixing frame 5 is installed inside the tank body 1. The fixing frame 5 is located below the first stirring shaft 2. The bottom end of the fixed shaft 6 is fixed to the fixing frame 5. A motor 4 is mounted on the top of the tank body 1. The output shaft of the motor 4 is connected to the first stirring shaft 2 through a coupling. The motor 4 can drive the first stirring shaft 2 to rotate, so that the first stirring shaft 2 drives the first stirring blade 3 to rotate horizontally and stir the liquid in the tank body 1.

[0022] Please see Figure 3 and Figure 4 Two second stirring shafts 7 are rotatably mounted on both sides of the transmission cavity 2-1 via bearings. Second stirring blades 8 are mounted on the portions of the two second stirring shafts 7 located outside the transmission cavity 2-1. A second bevel gear 10 is mounted on one end of each of the two second stirring shafts 7 located inside the transmission cavity 2-1. A first bevel gear 9 is mounted on the top of the fixed shaft 6, and the first bevel gear 9 meshes with both second bevel gears 10 simultaneously. When the first stirring shaft 2 rotates, it can drive the two second stirring shafts 7 to rotate horizontally. The fixed shaft 6 rotates in the opposite direction relative to the first stirring shaft 2. Thus, through the meshing of the first bevel gear 9 and the two second bevel gears 10, the two second stirring shafts 7 rotate, causing the second stirring shafts 7 to drive the second stirring blades 8 to rotate vertically and stir the liquid in the tank 1.

[0023] Please see Figure 1 and Figure 2 A pressure gauge 14 is installed on the top of the tank body 1. Two vertically distributed annular tubes 11 are installed in the lower part of the inner cavity of the tank body 1 via a bracket. The first stirring shaft 2 passes through the inside of the two annular tubes 11. Multiple evenly distributed air holes are provided on the two annular tubes 11. An air inlet pipe 12 is provided near the inner wall of the tank body 1. The air inlet pipe 12 has two outlets, which are respectively connected to the two annular tubes 11. The top of the air inlet pipe 12 passes through the top of the tank body 1. The perforation of the tank body 1 is sealed. An inlet is provided at the top of the air inlet pipe 12. When the device is in use, the inlet of the air inlet pipe 12 is connected to the equipment for conveying synthesis gas. The synthesis gas required for the reaction can enter the two annular tubes 11 through the air inlet pipe 12, and then enter the tank body 1 through the air holes on the two annular tubes 11. The pressure gauge 14 can monitor the pressure inside the tank body 1 in real time. A fourth valve 18 is installed at the inlet of the air inlet pipe 12. The fourth valve 18 is a flow control valve, which can control the amount of air entering the tank body 1.

[0024] Please see Figure 2 and Figure 5 A temperature sensor 13 is installed on the inner wall of the tank 1 near the bottom. A housing 19 is installed on the outer side of the tank 1. Multiple heating wires 20 are arranged on the inner side of the housing 19. The heating wires 20 can heat the tank 1, thereby providing the temperature required for the reaction inside the tank 1. The temperature sensor 13 can monitor the temperature inside the tank 1 in real time.

[0025] Please see Figure 1 The top of the tank 1 is provided with an inlet 1-1 and an exhaust port 1-2. A first valve 15 is installed on the inlet 1-1. The first valve 15 is a flow control valve. A second valve 16 is installed on the exhaust port 1-2. The bottom of the tank 1 is provided with a discharge port 1-3. A third valve 17 is installed on the discharge port 1-3. Before the device is used, the exhaust port 1-2 needs to be connected to a waste gas treatment device. When the device is used, the liquid required for the reaction can enter the tank 1 through the inlet 1-1. The amount of liquid fed into the tank 1 can be controlled by the first valve 15. After the reaction is completed, the excess gas is discharged through the exhaust port 1-2, and the product obtained from the reaction is discharged through the discharge port 1-3.

[0026] Working principle and usage process of this utility model: When using this hydroformylation catalyst reaction device, open the first valve 15 to feed the liquid into the tank 1 through the feed inlet 1-1, and turn on the motor 4 and the heating wire 20. Then open the fourth valve 18 to feed the syngas into the annular pipe 11 through the gas inlet pipe 12, allowing the gas to be fed into the liquid through the gas holes on the annular pipe 11. During the reaction, the gas ratio can be adjusted according to factors such as reaction temperature, reaction time, and reaction pressure to reduce catalyst deposition. During the reaction, the motor 4 drives the first stirring shaft 2 to rotate, causing the first stirring shaft 2 to drive the first stirring blade 3 to rotate horizontally to stir the liquid. During the rotation of the first stirring shaft 2, it drives the two second stirring shafts 7 to rotate. At the same time, through the cooperation of the fixed shaft 6, the first bevel gear 9 and the second bevel gear 10, the two second stirring shafts 7 are driven to rotate, causing the second stirring shafts 7 to drive the second stirring blades 8 to rotate vertically to stir the liquid, thereby improving the stirring efficiency and accelerating the reaction between the syngas and the liquid.

[0027] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A hydroformylation catalyst reaction apparatus, characterized in that, The tank (1) includes a first stirring shaft (2) rotatably mounted on the top of the inner cavity of the tank (1). A transmission cavity (2-1) is provided in the middle section of the first stirring shaft (2). A first stirring blade (3) is mounted on the first stirring shaft (2). An axial fixed shaft (6) is rotatably mounted in the first stirring shaft (2) through a bearing. The top end of the fixed shaft (6) is located in the transmission cavity (2-1). A fixed frame (5) is installed inside the tank (1). The fixed frame (5) is located below the first stirring shaft (2). The bottom end of the fixed shaft (6) is fixed to the fixed frame (5). A motor (4) is installed on the top of the tank (1). The output shaft of the motor (4) is connected to the first stirring shaft (2) through a coupling. Two second stirring shafts (7) are rotatably mounted on both sides of the transmission cavity (2-1) via bearings. The portions of the two second stirring shafts (7) located outside the transmission cavity (2-1) are each equipped with a second stirring blade (8). A second bevel gear (10) is installed on one end of the two second stirring shafts (7) located inside the transmission cavity (2-1). A first bevel gear (9) is installed at the top of the fixed shaft (6), and the first bevel gear (9) meshes with the two second bevel gears (10) simultaneously.

2. The hydroformylation catalyst reaction apparatus according to claim 1, characterized in that, A pressure gauge (14) is installed on the top of the tank (1). Two vertically distributed annular tubes (11) are installed in the lower part of the inner cavity of the tank (1) by a bracket. The first stirring shaft (2) passes through the inside of the two annular tubes (11). Multiple evenly distributed air holes are provided on the two annular tubes (11). An air inlet pipe (12) is provided in the tank (1) near the inner wall. The air inlet pipe (12) has two outlets, and these two outlets are connected to the two annular tubes (11) respectively. The top of the air inlet pipe (12) passes through the top of the tank (1). An inlet is provided at the top of the air inlet pipe (12), and a fourth valve (18) is installed at the inlet.

3. The hydroformylation catalyst reaction apparatus according to claim 1, characterized in that, A temperature sensor (13) is installed on the inner wall of the tank (1) near the bottom. A housing (19) is installed on the outer side of the tank (1). Multiple heating wires (20) are arranged on the inner side of the housing (19).

4. The hydroformylation catalyst reaction apparatus according to claim 1, characterized in that, The top of the tank (1) is provided with a feed inlet (1-1) and an exhaust outlet (1-2). A first valve (15) is installed on the feed inlet (1-1) and a second valve (16) is installed on the exhaust outlet (1-2).

5. The hydroformylation catalyst reaction apparatus according to claim 1, characterized in that, The bottom of the tank (1) is provided with a discharge port (1-3), and a third valve (17) is installed on the discharge port (1-3).

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