Stirring device with temperature control function for production of bimetallic catalyst
By incorporating temperature control and a variable tilt angle stirring blade design, the problems of uneven mixing and high energy consumption in the preparation of bimetallic catalysts by existing stirring devices have been solved, achieving efficient and low-energy mixing and improving the quality of the catalyst.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU BUD POLYURETHANE CO LTD
- Filing Date
- 2025-11-20
- Publication Date
- 2026-04-28
AI Technical Summary
Existing stirring devices struggle to achieve uniform mixing of reactants during bimetallic catalyst preparation, and the different requirements for the fluid field at different stages lead to high energy consumption or particle damage, affecting product quality.
A stirring device with temperature control function was designed. By using a temperature regulating component and a stirring blade with a variable tilt angle, combined with the design of inlet holes, contraction holes, smoothing holes, diffusion holes and outlet holes, the angle of the blade can be changed at different speeds, providing axial flow and radial flow, and improving mixing efficiency.
At different rotational speeds, the stirring device can effectively control the flow field, improve mixing uniformity and stirring efficiency, reduce energy consumption, protect nanoparticles, and improve catalyst quality.
Smart Images
Figure CN121927484A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of stirring device technology, specifically a stirring device for the production of bimetallic catalysts with temperature control function. Background Technology
[0002] In the preparation of bimetallic nanocatalysts, especially when using liquid-phase synthesis methods such as co-precipitation, co-reduction, or continuous impregnation, the mixing uniformity of the metal precursors in the reaction system, the controllability of nucleation and growth, and the adaptability to different process stages are the key factors that determine the final catalyst structure (such as alloy uniformity and core-shell structure precision) and performance (such as activity and selectivity).
[0003] Existing mechanical stirring devices, commonly used in technology, typically consist of simple turbine propellers, propellers, or similar devices combined with baffles. Their mixing mechanism relies on the macroscopic flow field generated by the rotating blades, waiting for reactants to achieve uniform distribution through macroscopic circulation and molecular diffusion. This mechanism has the following significant drawbacks: when a reactant is added dropwise to the bulk reaction solution, a highly concentrated supersaturated region forms at the addition point, leading to explosive nucleation and rapid growth of metal atoms in that region. However, in regions far from the addition point, the nucleation driving force is insufficient. To achieve strong mixing, it is often necessary to drastically increase the stirring speed, which leads to a sharp increase in energy consumption. Furthermore, excessive global shear force may cause mechanical damage to the already formed fragile nanoparticles.
[0004] Catalyst preparation is typically a complex, multi-stage sequential process, with drastically different requirements for the fluid field at each stage: the nucleation stage requires high shear and strong turbulence, while the crystal growth and aging stages require a gentle, uniform flow field to prevent particle breakage. Most existing stirring devices employ impellers with fixed geometry and constant operating speeds. Setting a high speed based on the requirements of the nucleation stage will cause excessive shearing of the particles during the growth / aging stages. Conversely, using a low speed throughout to protect the particles will result in uneven initial mixing, fundamentally affecting product quality. Summary of the Invention
[0005] The purpose of this invention is to provide a stirring device for the production of bimetallic catalysts with temperature control function, so as to solve the problems raised in the prior art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A stirring device for producing bimetallic catalysts with temperature control function is provided. The stirring device includes a stirring tank, a temperature regulating component, a stirring mechanism, a feeding mechanism, support columns, and a discharge pipe. The temperature regulating component is provided outside the stirring tank. The stirring tank and the stirring mechanism are fastened together. The feeding mechanism is provided on the stirring tank. The temperature regulating component and the feeding mechanism are rotatably connected. Several support columns are provided below the stirring tank. The discharge pipe is provided below the stirring tank. The stirring tank and the discharge pipe are connected.
[0007] The raw materials used to produce the catalyst are placed in a mixing tank. The temperature control component is placed outside the mixing tank and is used to regulate the temperature of the environment inside the mixing tank. The stirring mechanism is fixed on the mixing tank and is used to stir the raw materials inside the mixing tank. The feeding mechanism is used to add the auxiliary agents required for the reaction. The support column is used to support the mixing tank. The discharge pipe below the mixing tank is used to discharge the obtained catalyst.
[0008] Furthermore, the mixing tank includes a tank body and a tank cover. Several support columns are provided below the tank body, and a discharge pipe is provided below the tank body. The tank body and the discharge pipe are connected. A feeding mechanism is provided on the tank cover, and the tank cover and the mixing mechanism are fastened together.
[0009] Several support columns are used to support the barrel body. The discharge pipe is located below the barrel body. The feeding mechanism is placed on the barrel cover for feeding and adding additives. The stirring mechanism passes through the barrel cover and one end is placed inside the barrel body.
[0010] Furthermore, the temperature control assembly includes a temperature control chamber, a temperature control inlet pipe, and a temperature control outlet pipe. The temperature control chamber is connected to the temperature control inlet pipe and the temperature control outlet pipe, respectively, and is fitted around the outer ring of the barrel.
[0011] The temperature-regulating chamber is located on the outer ring of the barrel. A heat source or a cold source enters the temperature-regulating chamber through the temperature-regulating inlet pipe to control the temperature of the raw materials inside the barrel, and then exits the temperature-regulating chamber through the temperature-regulating outlet pipe.
[0012] Furthermore, the mixing mechanism includes a mixing motor, a support frame, a belt, a mixing shaft, and mixing paddles. The mixing motor and the support frame are fastened together, the support frame and the bucket lid are fastened together, the output end of the mixing motor is in frictional contact with the belt, the belt is in frictional contact with the mixing shaft, one end of the mixing shaft passes through the bucket lid, and the other end of the mixing shaft is placed inside the bucket. Several sets of mixing paddles are provided, and several sets of mixing paddles are fitted around the outer ring of the mixing shaft. One end of the mixing shaft is rotatably connected to the feeding mechanism.
[0013] The support frame is placed above the bucket lid and supports the stirring motor. Through the contact between the output end of the stirring motor and the belt, and the contact between the belt and the stirring shaft, the stirring motor can drive the stirring shaft to rotate. The stirring paddle is sleeved on the outer ring of the stirring shaft, so that the stirring paddle can rotate with the rotation of the stirring shaft, so that the stirring paddle can stir the raw materials inside the bucket. Through the connection between the stirring shaft and the feeding mechanism, the feeding mechanism can inject the additives to be added from the stirring shaft into the raw materials.
[0014] Furthermore, the stirring paddle includes blades, connectors, and torsion springs. Several sets of blades are provided, and the sets of blades and connectors are rotatably connected. The connectors are sleeved on the outer ring of the stirring shaft. The torsion springs are inserted into the blades and connectors respectively. One end of the torsion spring is fastened to the blade, and the other end of the torsion spring is fastened to the connector.
[0015] The blades and the connecting piece are rotatably connected by a connecting piece fitted onto the outer ring of the stirring shaft. When the stirring shaft rotates, several sets of blades rotate accordingly. Torsion springs are connected to the blades and the connecting piece respectively. When the stirring motor causes the stirring shaft to rotate at different speeds, the blades will be subjected to water flows of different intensities, thus rotating. The torsion springs can control the amplitude of the blade rotation.
[0016] Furthermore, the connector has a connecting cavity inside, one end of the blade is inserted into the connecting cavity, and one end of the torsion spring is fastened to the connecting cavity.
[0017] One end of the torsion spring is placed in the connecting cavity, and the other end is placed inside the blade. Through the connection of the torsion spring, the blade will rotate at different angles when the stirring shaft rotates at different speeds.
[0018] Furthermore, a cavity is provided inside the blade on the side near the connector, and the torsion spring is fastened to the cavity on one side.
[0019] The two ends of the torsion spring are fixed to the connecting cavity and the hollow cavity respectively. Therefore, when the stirring shaft rotates at low speed, the water flow has little resistance to the blades. The spring force of the torsion spring keeps the blades at a large angle, generating a strong axial flow that can quickly lift the raw materials in the tank. When the stirring shaft rotates at high speed, the water flow has a sharp increase in resistance to the blades. This resistance pushes the blades to rotate at a smaller angle or even in a straight direction. The blades that are close to straight provide stronger radial flow and shear force, making it easier to disperse additives and mix raw materials and additives, thereby improving the stirring efficiency.
[0020] Furthermore, the blade is provided with an inlet hole, a contraction hole, a smoothing hole, a diffusion hole, and an outlet hole in sequence along the direction away from the connector. The contraction hole is connected to the inlet hole and the smoothing hole respectively, and the radius of the contraction hole gradually decreases. The diffusion hole is connected to the smoothing hole and the outlet hole respectively, and the radius of the diffusion hole gradually increases. The inlet of the inlet hole faces the bucket lid, and the outlet of the outlet hole faces the bottom of the bucket.
[0021] The inlet is close to the axis of the stirring shaft, while the outlet is far from the axis of the stirring shaft. When the blades rotate, the friction in the outlet cannot confine the fluid. Under the action of centrifugal force, the fluid can only be ejected from the outlet, thus forming a low pressure at the outlet. Therefore, raw materials and additives can only enter through the inlet. When passing through the contraction hole, smoothing hole, and diffusion hole, the fluid velocity increases and the internal pressure decreases, thereby further drawing external fluid into the inlet, greatly improving the suction efficiency. In addition, raw materials and additives can be quickly mixed in the blades. The mixed fluid is ejected at high speed from the outlet, accelerating the dispersion effect of the additives and the mixing efficiency of raw materials and additives.
[0022] Furthermore, the mixing shaft is equipped with a feeding channel, which is connected to the feeding mechanism pipe. Several discharge ports are located below the mixing shaft, and these discharge ports are positioned above the mixing blades near the bottom of the barrel. The discharge port outlets are positioned above the inlet of the inlet hole.
[0023] The feeding mechanism connects the feeding channel and the feeding device. The feeding device inputs the additive from the feeding channel into the stirring shaft and discharges it into the tank through the discharge port below the stirring shaft. Since the outlet of the discharge port is located above the stirring paddle, the stirring paddle can directly drive the additive output from the discharge port when it rotates, so that the additive can be quickly dispersed and the stirring rate can be accelerated. After the additive is discharged from the discharge port, it is easy to be sucked into the inlet hole and discharged at high speed from the outlet hole, thereby intensifying the mixing of the additive and the raw materials.
[0024] Furthermore, the feeding mechanism includes a storage bin and a connecting pipe. The storage bin is fixed above the bucket lid, and the storage bin and the connecting pipe are connected. The connecting pipe is rotatably connected to the stirring shaft, and the outlet of the connecting pipe is connected to the feeding channel.
[0025] The required additives are placed in the storage silo. When adding them, the additives are pumped into the connecting pipe and then transported to the inside of the feeding channel through the connecting pipe. When the stirring shaft rotates, the additives are thrown out from the discharge port into the barrel.
[0026] Compared with the prior art, the beneficial effects of the present invention are: 1. When the stirring shaft rotates at low speed, the water flow has little resistance to the blades. The torsion spring keeps the blades at a large angle, generating a strong axial flow that quickly lifts the raw materials in the tank. When the stirring shaft rotates at high speed, the water flow has a sharp increase in resistance to the blades, pushing the blades to rotate at a smaller angle or even in a straight direction. The near-straight blades provide stronger radial flow and shear force, making it easier to disperse additives and mix raw materials and additives, thereby improving the stirring efficiency. 2. The inlet hole is close to the axis of the stirring shaft, while the outlet hole is far from the axis of the stirring shaft. When the blades rotate, the friction in the outlet hole cannot restrain the fluid. Under the action of centrifugal force, the fluid can only be ejected from the outlet hole, thus forming a low pressure at the outlet hole. Therefore, raw materials and additives can only enter from the inlet hole. When passing through the internal channel of the blades, the fluid speed increases and the internal pressure decreases, which further causes the external fluid to be continuously drawn in from the inlet hole, greatly improving the suction efficiency and being discharged at high speed from the outlet hole. This powerfully drives the circulation of fluid in the tank and improves the stirring efficiency. 3. When the blades rotate, the additives flowing out of the outlet are easily drawn into the inlet, and the raw materials and additives can be quickly mixed in the blades. The mixed fluid is ejected at high speed from the outlet, which accelerates the dispersion effect of the additives and the mixing efficiency of the raw materials and additives. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the mixing tank and temperature control assembly of the present invention; Figure 3 This is a schematic diagram of the mixing mechanism and the feeding mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the stirring shaft of the present invention; Figure 5 This is a schematic diagram of the structure of the stirring paddle of the present invention; Figure 6 This is a schematic diagram of the structure of the present invention; Figure 7 This is a schematic diagram of the blade structure of the present invention.
[0028] In the diagram: 1. Mixing tank; 11. Tank body; 12. Tank lid; 2. Temperature control assembly; 21. Temperature control chamber; 22. Temperature control inlet pipe; 23. Temperature control outlet pipe; 3. Mixing mechanism; 31. Mixing motor; 32. Support frame; 33. Belt; 34. Mixing shaft; 341. Feeding channel; 35. Mixing paddle; 351. Paddle blade; 3511. Cavity; 3512. Inlet hole; 3513. Contraction hole; 3514. Smoothing hole; 3515. Diffuser hole; 3516. Outlet hole; 352. Connecting piece; 3521. Connecting cavity; 353. Torsion spring; 36. Discharge port; 4. Feeding mechanism; 41. Storage bin; 42. Connecting pipe; 5. Support column; 6. Discharge pipe. Detailed Implementation
[0029] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0030] Example: Figures 1-7 As shown, the present invention provides a stirring device with temperature control function for the production of bimetallic catalysts.
[0031] like Figure 1 As shown, a stirring device for producing bimetallic catalysts with temperature control function is disclosed. The stirring device includes a stirring tank 1, a temperature regulating component 2, a stirring mechanism 3, a feeding mechanism 4, support columns 5, and a discharge pipe 6. The temperature regulating component 2 is provided outside the stirring tank 1. The stirring tank 1 and the stirring mechanism 3 are fastened together. The feeding mechanism 4 is provided on the stirring tank 1. The temperature regulating component 2 and the feeding mechanism 4 are rotatably connected. Several support columns 5 are provided below the stirring tank 1. The discharge pipe 6 is provided below the stirring tank 1. The stirring tank 1 and the discharge pipe 6 are connected by pipes.
[0032] The raw materials used to produce the catalyst are placed in the mixing tank 1. The temperature control component 2 is placed outside the mixing tank 1. The temperature control component 2 is used to control the temperature of the environment inside the mixing tank 1. The stirring mechanism 3 is fixed on the mixing tank 1 and is used to stir the raw materials inside the mixing tank 1. The feeding mechanism 4 is used to add the auxiliary agents required for the reaction. The support column 5 is used to support the mixing tank 1. The discharge pipe 6 below the mixing tank 1 is used to discharge the obtained catalyst.
[0033] like Figure 2 As shown, the mixing tank 1 includes a tank body 11 and a tank cover 12. Several support columns 5 are provided below the tank body 11, and a discharge pipe 6 is provided below the tank body 11. The tank body 11 and the discharge pipe 6 are connected. A feeding mechanism 4 is provided on the tank cover 12, and the tank cover 12 and the mixing mechanism 3 are fastened together.
[0034] Several support columns 5 are used to support the barrel 11. The discharge pipe 6 is located below the barrel 11. The feeding mechanism 4 is placed on the barrel cover 12 for feeding and adding additives. The stirring mechanism 3 passes through the barrel cover 12 and one end is placed inside the barrel 11.
[0035] like Figure 2 As shown, the temperature control assembly 2 includes a temperature control chamber 21, a temperature control inlet pipe 22, and a temperature control outlet pipe 23. The temperature control chamber 21 is connected to the temperature control inlet pipe 22 and the temperature control outlet pipe 23 respectively. The temperature control chamber 21 is fitted around the outer ring of the barrel body 11.
[0036] The temperature-regulating chamber 21 is located on the outer ring of the barrel 11. A heat source or a cold source enters the temperature-regulating chamber 21 through the temperature-regulating inlet pipe 22 to control the temperature of the raw materials inside the barrel 11, and then exits the temperature-regulating chamber 21 through the temperature-regulating outlet pipe 23.
[0037] like Figures 3-5 As shown, the stirring mechanism 3 includes a stirring motor 31, a support frame 32, a belt 33, a stirring shaft 34, and a stirring paddle 35. The stirring motor 31 and the support frame 32 are fastened together, the support frame 32 and the bucket cover 12 are fastened together, the output end of the stirring motor 31 is in frictional contact with the belt 33, the belt 33 is in frictional contact with the stirring shaft 34, one end of the stirring shaft 34 passes through the bucket cover 12, and the other end of the stirring shaft 34 is placed inside the bucket body 11. Several sets of stirring paddles 35 are provided, and several sets of stirring paddles 35 are sleeved on the outer ring of the stirring shaft 34. One end of the stirring shaft 34 is rotatably connected to the feeding mechanism 4.
[0038] The support frame 32 is placed above the bucket lid 12 and supports the stirring motor 31. Through the contact between the output end of the stirring motor 31 and the belt 33, and the contact between the belt 33 and the stirring shaft 34, the stirring motor 31 can drive the stirring shaft 34 to rotate. The stirring paddle 35 is sleeved on the outer ring of the stirring shaft 34, so that the stirring paddle 35 can rotate with the rotation of the stirring shaft 34, so that the stirring paddle 35 can stir the raw materials inside the bucket 11. Through the connection between the stirring shaft 34 and the feeding mechanism 4, the feeding mechanism 4 can inject the additives to be added from the stirring shaft 34 into the raw materials.
[0039] like Figure 5 As shown, the stirring paddle 35 includes blades 351, connectors 352, and torsion springs 353. Several sets of blades 351 are provided, and the sets of blades 351 and connectors 352 are rotatably connected. The connectors 352 are sleeved on the outer ring of the stirring shaft 34. The torsion springs 353 are respectively inserted into the blades 351 and the connectors 352. One end of the torsion spring 353 is fastened to the blades 351, and the other end of the torsion spring 353 is fastened to the connectors 352.
[0040] The impeller 351 and the connector 352 are rotatably connected by the connector 352 on the outer ring of the stirring shaft 34. When the stirring shaft 34 rotates, several sets of impellers 351 rotate accordingly. The torsion spring 353 is connected to the impeller 351 and the connector 352 respectively. When the stirring motor 31 makes the stirring shaft 34 rotate at different speeds, the impeller 351 will be subjected to water flow of different intensities, thus rotating. The torsion spring 353 can control the amplitude of the rotation of the impeller 351.
[0041] like Figure 6 As shown, the connector 352 has a connecting cavity 3521 inside, one end of the blade 351 is inserted into the connecting cavity 3521, and one end of the torsion spring 353 is fastened to the connecting cavity 3521.
[0042] One end of the torsion spring 353 is placed in the connecting cavity 3521, and the other end is placed inside the blade 351. Through the connection of the torsion spring 353, when the stirring shaft 34 rotates at different speeds, the blade 351 will rotate at different angles.
[0043] like Figure 6 As shown, the blade 351 has a cavity 3511 inside on the side near the connector 352, and the torsion spring 353 is fastened to the cavity 3511 on one side.
[0044] The two ends of the torsion spring 353 are fixed to the connecting cavity 3521 and the cavity 3511 respectively. Therefore, when the stirring shaft 34 rotates at low speed, the water flow has little resistance to the blade 351. The spring force of the torsion spring 353 keeps the blade 351 at a large angle, generating a strong axial flow that can quickly lift the raw materials in the tank 11. When the stirring shaft 34 rotates at high speed, the water flow has a sharp increase in resistance to the blade 351. This resistance pushes the blade 351 to rotate at a smaller angle or even in a straight direction. The blade 351, which is close to straight, provides stronger radial flow and shear force, making it easier to disperse additives and mix raw materials and additives, thereby improving the stirring efficiency.
[0045] like Figure 7 As shown, the blade 351 is provided with an inlet hole 3512, a contraction hole 3513, a smoothing hole 3514, a diffusion hole 3515 and an outlet hole 3516 in sequence along the direction away from the connector 352. The contraction hole 3513 is connected to the inlet hole 3512 and the smoothing hole 3514 respectively, and the radius of the contraction hole 3513 gradually decreases. The diffusion hole 3515 is connected to the smoothing hole 3514 and the outlet hole 3516 respectively, and the radius of the diffusion hole 3515 gradually increases. The inlet of the inlet hole 3512 faces the barrel cover 12, and the outlet of the outlet hole 3516 faces the bottom of the barrel body 11.
[0046] The inlet hole 3512 is close to the axis of the stirring shaft 34, while the outlet hole 3516 is far from the axis of the stirring shaft 34. When the blade 351 rotates, the frictional force inside the outlet hole 3516 cannot constrain the fluid. Under the action of centrifugal force, the fluid can only be ejected from the outlet hole 3516, thus forming a low pressure at the outlet hole 3516. Therefore, raw materials and additives can only enter from the inlet hole 3512. When passing through the contraction hole 3513, the smoothing hole 3514, and the diffusion hole 3515, the fluid velocity increases and the internal pressure decreases, thereby further drawing in external fluid from the inlet hole 3512, greatly improving the suction efficiency. Furthermore, the raw materials and additives can be quickly mixed inside the blade 351. The mixed fluid is ejected at high speed from the outlet hole 3516, accelerating the dispersion effect of the additives and the mixing efficiency of the raw materials and additives.
[0047] like Figure 4 As shown, the stirring shaft 34 is provided with a feeding channel 341 inside, which is connected to the feeding mechanism 4. Several discharge ports 36 are provided below the stirring shaft 34. The discharge ports 36 are located above the stirring paddle 35 near the bottom of the barrel 11, and the outlet of the discharge port 36 is located above the inlet of the inlet hole 3512.
[0048] Through the connection between the feeding channel 341 and the feeding mechanism 4, the feeding mechanism 4 inputs the additive from the feeding channel 341 into the stirring shaft 34, and discharges it into the tank body 11 through the discharge port 36 below the stirring shaft 34. Since the outlet of the discharge port 36 is located above the stirring paddle 35, the stirring paddle 35 can directly drive the additive output from the discharge port 36 when it rotates, so that the additive can be quickly dispersed and the stirring rate can be accelerated. After the additive is discharged from the discharge port 36, it is easy to be sucked into the inflow hole 3512 and discharged at high speed from the outflow hole 3516, thereby intensifying the mixing of the additive and the raw materials.
[0049] like Figures 3-4 As shown, the feeding mechanism 4 includes a storage bin 41 and a connecting pipe 42. The storage bin 41 is fixed above the barrel cover 12. The storage bin 41 and the connecting pipe 42 are connected. The connecting pipe 42 is rotatably connected to the stirring shaft 34. The outlet of the connecting pipe 42 is connected to the feeding channel 341.
[0050] The required additives are placed in the storage silo 41. When adding, the additives are pumped into the connecting pipe 42 and transported to the inside of the feeding channel 341 through the connecting pipe 42. When the stirring shaft 34 rotates, the additives are thrown out from the discharge port 36 into the barrel 11.
[0051] Working principle of the invention: The raw materials used to produce the catalyst are placed in the mixing tank 1. The temperature control component 2 is placed outside the mixing tank 1 and is used to regulate the temperature of the environment inside the mixing tank 1. The stirring motor 31 drives the stirring shaft 34 and the stirring paddle 35 to rotate. When rotating at low speed, the water flow has little resistance to the paddle 351, and the torsion spring 353 keeps the paddle 351 at a large angle, which can quickly lift the raw materials in the tank 11. When rotating at high speed, the water flow has greater resistance to the paddle 351, pushing the paddle 351 to rotate at a smaller angle or even in a straight direction. The near-straight paddle 351 provides stronger radial flow and shear force, making it easier to mix the raw materials and additives, thereby improving the stirring efficiency. The inlet hole 3512 is close to the axis of the stirring shaft 34, and the outlet hole 3516 is far away from the stirring shaft 34. When the blade 351 rotates, the friction within the outlet hole 3516 cannot constrain the fluid. Under the action of centrifugal force, the fluid can only be ejected from the outlet hole 3516, thus creating a low pressure at the outlet hole 3516. Therefore, both raw materials and additives can only enter through the inlet hole 3512. As the fluid passes through the internal channel of the blade 351, the speed increases and the internal pressure decreases, thereby further drawing in external fluid from the inlet hole 3512, greatly improving the suction efficiency. Furthermore, the raw materials and additives can be rapidly mixed within the blade 351. The mixed fluid is ejected at high speed from the outlet hole 3516, accelerating the dispersion effect of the additives and the mixing efficiency of the raw materials and additives. The discharge pipe 6 below the mixing tank 1 is used to discharge the obtained catalyst.
[0052] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A stirring device for producing bimetallic catalysts with temperature control function, characterized in that: The stirring device includes a stirring tank (1), a temperature control component (2), a stirring mechanism (3), a feeding mechanism (4), support columns (5), and a discharge pipe (6). The stirring tank (1) is provided with a temperature control component (2). The stirring tank (1) and the stirring mechanism (3) are fastened together. The stirring tank (1) is provided with a feeding mechanism (4). The temperature control component (2) and the feeding mechanism (4) are rotatably connected. Several support columns (5) are provided below the stirring tank (1). The stirring tank (1) is provided with a discharge pipe (6). The stirring tank (1) and the discharge pipe (6) are connected.
2. The stirring device for producing a bimetallic catalyst with temperature control function according to claim 1, characterized in that: The mixing tank (1) includes a tank body (11) and a tank cover (12). Several support columns (5) are provided below the tank body (11). A discharge pipe (6) is provided below the tank body (11). The tank body (11) and the discharge pipe (6) are connected. A feeding mechanism (4) is provided on the tank cover (12). The tank cover (12) and the mixing mechanism (3) are fastened together.
3. The stirring device for producing a bimetallic catalyst with temperature control function according to claim 2, characterized in that: The temperature control component (2) includes a temperature control chamber (21), a temperature control inlet pipe (22), and a temperature control outlet pipe (23). The temperature control chamber (21) is connected to the temperature control inlet pipe (22) and the temperature control outlet pipe (23) respectively. The temperature control chamber (21) is fitted around the outer ring of the barrel body (11).
4. The stirring device for producing a bimetallic catalyst with temperature control function according to claim 3, characterized in that: The stirring mechanism (3) includes a stirring motor (31), a support frame (32), a belt (33), a stirring shaft (34), and a stirring paddle (35). The stirring motor (31) and the support frame (32) are fastened together. The support frame (32) and the bucket cover (12) are fastened together. The output end of the stirring motor (31) and the belt (33) are in frictional contact. The belt (33) and the stirring shaft (34) are in frictional contact. One end of the stirring shaft (34) passes through the bucket cover (12), and the other end of the stirring shaft (34) is placed inside the bucket body (11). The stirring paddle (35) is provided in several groups. Several groups of stirring paddles (35) are sleeved on the outer ring of the stirring shaft (34). One end of the stirring shaft (34) is rotatably connected to the feeding mechanism (4).
5. A stirring device for producing a bimetallic catalyst with temperature control function according to claim 4, characterized in that: The stirring paddle (35) includes blades (351), connectors (352) and torsion springs (353). The blades (351) are provided in several groups, and the blades (351) and connectors (352) are rotatably connected. The connectors (352) are sleeved on the outer ring of the stirring shaft (34). The torsion springs (353) are inserted into the blades (351) and connectors (352) respectively. One end of the torsion spring (353) is fastened to the blades (351), and the other end of the torsion spring (353) is fastened to the connectors (352).
6. The stirring device for producing a bimetallic catalyst with temperature control function according to claim 5, characterized in that: The connector (352) has a connecting cavity (3521) inside. One end of the blade (351) is inserted into the connecting cavity (3521), and one end of the torsion spring (353) is fastened to the connecting cavity (3521).
7. A stirring device for producing a bimetallic catalyst with temperature control function according to claim 6, characterized in that: The blade (351) has a cavity (3511) inside the side near the connector (352), and the torsion spring (353) is fastened to the cavity (3511) on one side.
8. A stirring device for producing a bimetallic catalyst with temperature control function according to claim 7, characterized in that: The blade (351) is provided with an inlet hole (3512), a contraction hole (3513), a smoothing hole (3514), a diffusion hole (3515), and an outlet hole (3516) in sequence along the direction away from the connector (352). The contraction hole (3513) is connected to the inlet hole (3512) and the smoothing hole (3514) respectively. The radius of the contraction hole (3513) gradually decreases. The diffusion hole (3515) is connected to the smoothing hole (3514) and the outlet hole (3516) respectively. The radius of the diffusion hole (3515) gradually increases. The inlet of the inlet hole (3512) faces the bucket lid (12), and the outlet of the outlet hole (3516) faces the bottom of the bucket body (11).
9. A stirring device for producing a bimetallic catalyst with temperature control function according to claim 8, characterized in that: The stirring shaft (34) is provided with a feeding channel (341) inside. The feeding channel (341) is connected to the feeding mechanism (4) via a pipe. Several discharge ports (36) are provided below the stirring shaft (34). Several discharge ports (36) are located above the stirring paddle (35) near the bottom of the barrel (11). The outlet of the discharge port (36) is located above the inlet of the inlet hole (3512).
10. A stirring device for producing a bimetallic catalyst with temperature control function according to claim 9, characterized in that: The feeding mechanism (4) includes a storage bin (41) and a connecting pipe (42). The storage bin (41) is fixed above the bucket lid (12). The storage bin (41) and the connecting pipe (42) are connected. The connecting pipe (42) and the stirring shaft (34) are rotatably connected. The outlet of the connecting pipe (42) and the feeding channel (341) are connected.