A continuous preparation reactor for a composite nanometer nickel-based catalyst

Abstract

The utility model belongs to catalyst preparation device technical field discloses a kind of composite nano nickel-based catalyst continuous preparation reactor, including reaction tank and the bracket for supporting the reaction tank of fixed connection in the bottom of the reaction tank, the top and bottom of the reaction tank are respectively provided with feed inlet and discharge port, the top of the reaction tank is fixedly connected with mounting bracket, the mounting bracket is fixedly connected with stirring assembly, the mounting bracket is rotatably connected with movable assembly, the utility model drives stirring rod to reciprocate along rotation axis by movable assembly, in combination with the overlap design of movable ring and reaction tank inner wall, form the dynamic system of covering type stirring and wall scraping, wherein, the axial displacement of stirring rod eliminates the mixed dead angle of tank top, bottom and edge, while the reciprocating movement of movable ring continuously removes raw material particles adhered to tank wall, avoid local agglomeration and settlement, greatly improve the dispersion uniformity of material, improve the preparation quality of catalyst.

Description

Technical Field

[0001] This utility model relates to the field of catalyst preparation device technology, and more specifically, to a reactor for continuous preparation of composite nano-nickel-based catalysts. Background Technology

[0002] Composite nano-nickel-based catalysts have significant application value in energy conversion and environmental protection due to their high activity and selectivity. To achieve efficient industrial production, continuous preparation reactors are gradually replacing batch reactors as the mainstream equipment. Through continuous material feeding, reaction and discharge, they significantly improve production efficiency and product uniformity. Such reactors are usually equipped with mechanical stirring devices to enhance the mixing of reactants, thereby ensuring the performance of the prepared catalysts.

[0003] However, the stirring rods or blades of existing continuous reactors are often fixedly mounted on the rotating shaft. Although they generate a certain shear force when rotating at high speed, the stirring range is limited to the fixed axial position, making it difficult to effectively cover the bottom, top edge and inner wall of the reaction vessel. This fixed stirring method leads to the formation of mixing dead zones inside the vessel, resulting in insufficient material uniformity, easy particle agglomeration and sedimentation, and ultimately affecting the quality of catalyst preparation.

[0004] In view of this, we propose a reactor for the continuous preparation of composite nano-nickel-based catalysts. Utility Model Content

[0005] 1. Technical problems to be solved The purpose of this invention is to provide a reactor for the continuous preparation of composite nano-nickel-based catalysts, in order to solve the problem mentioned in the background art that the stirring device for the continuous preparation of traditional composite nano-nickel-based catalysts needs improvement.

[0006] 2. Technical Solution A reactor for continuous preparation of composite nano-nickel-based catalysts includes a reaction vessel and a support fixedly connected to the bottom of the reaction vessel for supporting the reaction vessel. The top and bottom of the reaction vessel are respectively provided with an inlet and an outlet. A mounting frame is fixedly connected to the top of the reaction vessel, a stirring assembly is fixedly connected to the mounting frame, and a movable assembly is rotatably connected to the mounting frame. The stirring assembly includes a motor fixedly connected to the mounting frame, a rotating rod fixedly connected to the output end of the motor, and a plurality of stirring rods slidably connected to the rotating rod. The stirring assembly is used to stir the raw materials located in the reaction vessel to improve the preparation efficiency of the composite nano-nickel-based catalyst. The movable component is used to drive multiple stirring rods to reciprocate along the axial direction of the rotating rod to further enhance the stirring effect.

[0007] Preferably, multiple movable blocks are slidably connected at equal intervals on the rotating rod, and multiple stirring rods are fixedly connected to each of the multiple movable blocks. Multiple stirring rods on the same movable block are jointly fixedly connected to a movable ring, which overlaps with the inner wall of the reaction vessel. The movable ring is used to scrape off the raw materials adhering to the inner wall of the reaction vessel when the movable component drives the stirring rods to move up and down.

[0008] Preferably, the movable component includes a limiting rod fixedly connected to multiple movable blocks and a limiting groove adapted to the limiting rod on the rotating rod. A rotating frame is rotatably connected to the bottom of the mounting frame, and two electric push rods are fixedly connected to the rotating frame. The extended ends of the two electric push rods are fixedly connected to the topmost stirring rod, so that when the electric push rods extend and retract, they can drive multiple stirring rods and movable rings to move up and down.

[0009] Preferably, the top of the rotating frame is fixedly connected to a rotating ring with a T-shaped cross-section, and the bottom of the mounting frame is provided with a rotating groove that matches the size of the rotating ring.

[0010] Preferably, the top and bottom of the movable ring are provided with guide slopes that are inclined.

[0011] Preferably, when the electric push rod extends to its maximum distance, the lowermost movable ring moves precisely to the bottom of the reaction vessel.

[0012] Preferably, when the electric push rod moves from the extreme extension position to the extreme retraction position, the moving distance of the movable ring is exactly the same as the initial distance between the two movable rings.

[0013] 3. Beneficial effects Compared with existing technologies, the advantages of this utility model are: 1. This utility model uses a movable component to drive the stirring rod to move back and forth along the rotating shaft. Combined with the overlapping design of the movable ring and the inner wall of the reaction vessel, a covering stirring and scraping dynamic system is formed. The axial displacement of the stirring rod eliminates the mixing dead corners at the top, bottom and edge of the vessel. At the same time, the reciprocating motion of the movable ring continuously scrapes off the raw material particles attached to the vessel wall, avoiding local agglomeration and sedimentation, which greatly improves the dispersion uniformity of the material and improves the preparation quality of the catalyst.

[0014] 2. When the electric push rod of this utility model extends to its limit position, the bottom movable ring just reaches the bottom of the tank or returns to the preset position, ensuring that the stirring range covers the longitudinal space of the tank, eliminating the stirring blind zone of the traditional fixed device, and further improving the preparation quality of the catalyst. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the reaction vessel of this utility model; Figure 3 This is a schematic diagram of the structure of the stirring assembly of this utility model; Figure 4 This is an exploded view of the rotating rod and stirring rod of this utility model; Figure 5 This is an exploded view of the limiting rod and rotating rod of this utility model; Figure 6 This is a cross-sectional view of the mounting bracket and swivel ring of this utility model.

[0016] The following are the labels in the diagram: 1. Reaction vessel; 11. Inlet; 12. Outlet; 13. Support; 14. Mounting frame; 15. Motor; 2. Stirring assembly; 21. Rotating rod; 22. Movable block; 23. Stirring rod; 24. Movable ring; 25. Guide slope; 3. Movable assembly; 31. Limiting rod; 32. Limiting groove; 33. Rotating frame; 34. Rotating ring; 35. Rotating groove; 36. Electric push rod. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 be a connection within 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.

[0020] Please see Figure 1-6 This utility model provides a technical solution: A reactor for the continuous preparation of composite nano-nickel-based catalysts includes a reaction vessel 1 and a support 13 fixedly connected to the bottom of the reaction vessel 1. The top and bottom of the reaction vessel 1 are respectively provided with an inlet 11 and an outlet 12. A mounting frame 14 is fixedly connected to the top of the reaction vessel 1, and a stirring assembly 2 is fixedly connected to the mounting frame 14. A movable assembly 3 is rotatably connected to the mounting frame 14. The stirring assembly 2 includes a motor 15 fixedly connected to the mounting frame 14, a rotating rod 21 fixedly connected to the output end of the motor 15, and multiple stirring rods 23 slidably connected to the rotating rod 21. The stirring assembly 2 is used for stirring... The raw materials in the reaction tank 1 are stirred to improve the preparation efficiency of the composite nano-nickel-based catalyst; the movable component 3 is used to drive multiple stirring rods 23 to reciprocate along the axis of the rotating rod 21 to further improve the stirring effect. In this configuration, the stirring component 2 provides the basic rotational shear force, while the movable component 3 drives the stirring rods 23 to move axially. The synergistic work of the two solves the problem of the limited stirring range of traditional fixed stirring devices. The radial mixing of materials is achieved by rotational stirring, while the axial displacement covers the top, bottom and longitudinal space of the tank, fundamentally eliminating mixing dead zones and improving the uniformity of material dispersion.

[0021] Multiple movable blocks 22 are slidably connected at equal intervals on the rotating rod 21. Multiple stirring rods 23 are fixedly connected to each movable block 22. Multiple stirring rods 23 on the same movable block 22 are fixedly connected to a movable ring 24. The movable ring 24 overlaps with the inner wall of the reaction vessel 1. The movable ring 24 is used to scrape off the raw materials adhering to the inner wall of the reaction vessel 1 when the moving component 3 drives the stirring rods 23 to move up and down. With this configuration, the movable ring 24 is tightly connected to the vessel wall. When the stirring rods 23 move axially, the movable ring 24 slides up and down along the vessel wall in sync, so that it can actively remove the raw materials adhering to the vessel wall, avoid the raw materials from accumulating and hardening on the wall surface to form clumps, and at the same time, it can also forcibly peel off the agglomerated particles, ensuring that the inner surface of the vessel is always clean. This reduces the waste of raw materials and prevents uneven reaction temperature distribution caused by local accumulation.

[0022] In addition, the movable component 3 includes a limiting rod 31 fixedly connected to multiple movable blocks 22 and a limiting groove 32 adapted to the limiting rod 31 on the rotating rod 21. The bottom of the mounting frame 14 is rotatably connected to a rotating frame 33, and two electric push rods 36 are fixedly connected to the rotating frame 33. The extended ends of the two electric push rods 36 are fixedly connected to the topmost stirring rod 23, so that when the electric push rods 36 extend and retract, they can drive multiple stirring rods 23 and movable ring 24 to move up and down. That is to say, the limiting rod 31 passes through all movable blocks 22 and cooperates with the movable groove of the rotating rod 21. This setting can ensure that the stirring rods 23 maintain synchronicity when moving axially. In addition, the rotating frame 33 serves as a support carrier for the electric push rods 36, which can convert the linear driving force of the electric push rods 36 into the overall displacement of the stirring rods 23, so that the electric push rods 36 can synchronously control multiple stirring rods 23.

[0023] Specifically, the top of the rotating frame 33 is fixedly connected to a rotating ring 34 with a T-shaped cross section, and the bottom of the mounting frame 14 is provided with a rotating groove 35 that matches the size of the rotating ring 34. This arrangement allows the rotating frame 33 and the electric push rod 36 to rotate together with the rotating rod 21 along the mounting frame 14, so that the stirring rod 23 can move up and down while rotating with the rotating rod 21.

[0024] Secondly, the top and bottom of the movable ring 24 are provided with inclined guide slopes 25. The guide slopes 25 can reduce stirring resistance, prevent particles from getting stuck, and accelerate the axial exchange rate of materials, further enhancing the uniformity of mixing.

[0025] Furthermore, when the electric push rod 36 extends to its maximum distance, the lowest movable ring 24 moves precisely to the bottom of the reaction vessel 1. This limitation ensures that the lowest movable ring 24 can reach the bottom area of ​​the vessel by precisely matching the maximum stroke of the electric push rod 36 with the height of the vessel. This solves the problem that traditional agitators cannot cover the dead corners at the bottom of the vessel. During operation, it can forcibly agitate the settled materials and prevent particles from clumping at the bottom of the vessel.

[0026] Furthermore, when the electric push rod 36 moves from the extreme extension position to the extreme retraction position, the moving distance of the movable ring 24 is exactly the same as the initial distance between the two movable rings 24. This setting ensures that the distance the movable ring 24 moves back and forth each time is equal to the distance between the adjacent movable rings 24, ensuring that any longitudinal position in the tank can be evenly contacted for stirring, and avoiding the formation of a mixing blind zone due to insufficient movement range.

[0027] Working principle: In operation, the continuous preparation reactor for the composite nano-nickel-based catalyst continuously feeds raw materials into the reaction zone through the feed inlet 11 at the top of the reaction tank 1. Simultaneously, the motor 15, fixed to the mounting frame 14, starts, driving the rotating rod 21 to rotate at high speed. This causes multiple stirring rods 23, slidably connected to the rotating rod 21, to perform radial shearing and stirring, dispersing the raw material particles and promoting reaction mixing. Furthermore, since the electric push rod 36 is fixed to the rotating frame 33, its extended end is connected to the topmost stirring rod 23, allowing the electric push rod 36 to extend or retract. At the same time, the limiting rod 31 and the movable block 22 can be driven to move back and forth along the axis of the rotating rod 21, forcing all the stirring rods 23 and the movable ring 24 to move up and down synchronously. Meanwhile, the movable ring 24 is tightly connected to the inner wall of the reaction tank 1, and during the movement, the inclined guide slopes 25 at its top and bottom scrape off the raw materials attached to the inner wall surface, preventing particle agglomeration and sedimentation. The synergistic mechanism of rotation and axial movement greatly improves the uniformity of the material. Finally, the catalyst slurry that has completed the reaction is continuously discharged from the bottom outlet 12, realizing efficient and stable industrial production.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reactor for the continuous preparation of composite nano-nickel-based catalysts, characterized in that: The reaction vessel includes a reaction vessel (1) and a support (13) fixedly connected to the bottom of the reaction vessel (1) for supporting the reaction vessel (1). The top and bottom of the reaction vessel (1) are respectively provided with a feed inlet (11) and a discharge outlet (12). The top of the reaction vessel (1) is fixedly connected to a mounting frame (14). A stirring assembly (2) is fixedly connected to the mounting frame (14). A movable assembly (3) is rotatably connected to the mounting frame (14). The stirring assembly (2) includes a motor (15) fixedly connected to the mounting frame (14), a rotating rod (21) fixedly connected to the output end of the motor (15), and a plurality of stirring rods (23) slidably connected to the rotating rod (21). The stirring assembly (2) is used to stir the raw materials located in the reaction vessel (1) to improve the preparation efficiency of the composite nano nickel-based catalyst. The active component (3) is used to drive multiple stirring rods (23) to reciprocate along the axial direction of the rotating rod (21) to further enhance the stirring effect.

2. The reactor for continuous preparation of composite nano-nickel-based catalysts as described in claim 1, characterized in that: Multiple movable blocks (22) are slidably connected at equal intervals on the rotating rod (21). Multiple stirring rods (23) are fixedly connected to each of the multiple movable blocks (22). Multiple stirring rods (23) on the same movable block (22) are fixedly connected to a movable ring (24). The movable ring (24) overlaps with the inner wall of the reaction tank (1). The movable ring (24) is used to scrape off the raw materials attached to the inner wall of the reaction tank (1) when the movable component (3) drives the stirring rods (23) to move up and down.

3. The reactor for continuous preparation of composite nano-nickel-based catalysts as described in claim 2, characterized in that: The movable component (3) includes a limiting rod (31) fixedly connected to multiple movable blocks (22) and a limiting groove (32) adapted to the limiting rod (31) on the rotating rod (21). The bottom of the mounting frame (14) is rotatably connected to a rotating frame (33). Two electric push rods (36) are fixedly connected to the rotating frame (33). The extended ends of the two electric push rods (36) are fixedly connected to the top stirring rod (23), so that when the electric push rods (36) extend and retract, they can drive multiple stirring rods (23) and movable rings (24) to move up and down.

4. The reactor for continuous preparation of composite nano-nickel-based catalysts as described in claim 3, characterized in that: The top of the rotating frame (33) is fixedly connected to a rotating ring (34) with a T-shaped cross section, and the bottom of the mounting frame (14) is provided with a rotating groove (35) that matches the size of the rotating ring (34).

5. The reactor for continuous preparation of composite nano-nickel-based catalysts as described in claim 3, characterized in that: The top and bottom of the movable ring (24) are provided with guide slopes (25) that are set in an inclined plane.

6. The reactor for continuous preparation of composite nano-nickel-based catalysts as described in claim 3, characterized in that: When the electric push rod (36) extends to its maximum distance, the lowermost movable ring (24) moves exactly to the bottom of the reaction vessel (1).

7. The reactor for continuous preparation of the composite nano-nickel-based catalyst as described in claim 6, characterized in that: When the electric push rod (36) moves from the extreme extension position to the extreme retraction position, the moving distance of the movable ring (24) is exactly the same as the initial distance between the two movable rings (24).

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