Extrusion forming device for multi-metal catalyst

Abstract

The utility model discloses an extrusion forming device for a multi-metal catalyst, which belongs to the technical field of catalyst production and comprises a base, a barrel fixedly arranged on the base and a feeding hopper fixedly arranged on the barrel. The extrusion forming device further comprises a cylindrical mold head fixedly arranged at one end of the barrel, a spiral stirring mechanism arranged in the barrel and used for extruding materials out of the cylindrical mold head, and a grinding assembly arranged in the feeding hopper and used for grinding the materials. According to the extrusion forming device for the multi-metal catalyst, through the combined design of the cylindrical die head, the spiral stirring mechanism and the grinding assembly, multi-metal raw materials can be fully mixed while stirring is conducted, the mixed raw materials are pushed to the cylindrical die head, the mixed raw materials are smoothly extruded, integration of raw material mixing and forming is achieved, and the production efficiency is improved. The catalyst quality and the production efficiency are effectively improved, and meanwhile, the feeding smoothness and uniformity can be improved through the arranged knocking assembly.

Description

Technical Field

[0001] This application relates to the field of catalyst production technology, specifically an extrusion molding apparatus for a polymetallic catalyst. Background Technology

[0002] In modern chemical production, polymetallic catalysts are widely used due to their unique catalytic properties. The quality and performance of polymetallic catalysts play a crucial role in the efficiency and selectivity of chemical reactions.

[0003] Chinese utility model patent CN221292413U discloses an extrusion molding device for processing catalyst materials. It improves the quality of the prepared catalyst material by incorporating a stirring structure to achieve more thorough mixing among the catalyst components. However, when applied to the mixing and extrusion of multi-metal catalysts, the differences in particle size, shape, density, and surface properties among the multi-metal catalysts complicate the material's movement during stirring. Relying solely on the rotation of the stirring plate to initiate initial movement is often insufficient for handling large or agglomerated materials, leading to inadequate mixing. This not only affects catalyst production efficiency but also results in unstable product quality.

[0004] Therefore, this application provides an extrusion molding apparatus for a multi-metal catalyst to solve the above-mentioned problems. Utility Model Content

[0005] This application provides an extrusion molding apparatus for polymetallic catalysts, which aims to solve the problems mentioned in the background art, such as insufficient mixing due to differences in material properties when processing polymetallic catalysts, which affects production efficiency and product quality.

[0006] To achieve the above objectives, this application provides the following technical solution: an extrusion molding apparatus for a multi-metal catalyst, comprising a base, a cylinder fixedly disposed on the base, and a feed hopper fixedly disposed on the cylinder. The extrusion molding apparatus further comprises a cylindrical die head fixedly disposed at one end of the cylinder, a spiral stirring mechanism disposed in the cylinder for extruding material from the cylindrical die head, and a crushing component disposed in the feed hopper for crushing the material.

[0007] One end of the crushing component is equipped with a striking component for striking the feed hopper; the combined design of the cylindrical mold head, spiral stirring mechanism and crushing component can simultaneously stir to fully mix the multi-metal raw materials and push the mixed raw materials towards the cylindrical mold head, allowing the mixed raw materials to be smoothly extruded to form a regular honeycomb cylindrical multi-metal catalyst. This achieves the integration of raw material mixing and forming, effectively improving catalyst quality and production efficiency. At the same time, the design of the striking component effectively prevents material from clogging or accumulating at the feed hopper. This design makes the feeding process smoother and more efficient, ensuring that the raw materials can continuously and stably enter the cylinder for mixing and forming.

[0008] Preferably, in order to achieve material mixing and extrusion molding, the spiral mixing mechanism includes a threaded auger that runs laterally through the end of the cylinder away from the cylindrical mold head and is rotatably connected to the cylinder, and a drive motor that is fixedly mounted on the base and fixedly connected to the threaded auger. By driving the threaded auger to rotate in the cylinder by the drive motor, the material can be effectively mixed and conveyed. This design not only achieves uniform mixing of the material, but also ensures that the material can move continuously and stably towards the cylindrical mold head, providing favorable conditions for subsequent extrusion molding.

[0009] Preferably, to achieve material crushing, the crushing assembly includes a support shaft that runs transversely through the feed hopper and is symmetrically rotatably connected within the feed hopper; crushing blades fixedly mounted on two of the support shafts; connecting gears mounted on the outside of the feed hopper and fixedly connected to the two support shafts; and a transmission assembly mounted on one of the support shafts at the end furthest from the connecting gear and connected to the auger. The two connecting gears mesh with each other. Through the two symmetrically rotating support shafts and the crushing blades fixed thereon, the material entering the feed hopper can be effectively crushed. At the same time, the meshing of the connecting gears ensures the synchronous rotation of the two support shafts, while the transmission assembly realizes the power transmission between the auger and the crushing assembly. This allows the entire device to crush materials while mixing, improving the uniformity and fineness of the materials.

[0010] Preferably, to facilitate the transmission of power from the screw conveyor to the crushing assembly, the transmission assembly includes synchronous pulleys fixedly sleeved on one of the support shafts at the end away from the connecting gear and on the screw conveyor at the end near the drive motor, and synchronous toothed belts disposed on the two synchronous pulleys. The two synchronous pulleys are connected and transmit power through the synchronous toothed belts. Through the connection of the synchronous pulleys and the synchronous toothed belts, power transmission between the screw conveyor and the crushing assembly can be realized. This design eliminates the need for a separate power source for the crushing assembly, greatly reducing the energy consumption of the entire device and improving energy utilization efficiency.

[0011] Preferably, to achieve the striking action, the striking assembly includes a mounting bracket fixedly installed on the base at a position corresponding to one of the support shafts near the synchronous pulley; a connecting bevel gear fixedly sleeved on one of the support shafts; a transmission shaft longitudinally passing through the mounting bracket and rotatably connected to the mounting bracket; a transmission bevel gear fixedly sleeved on the bottom end of the transmission shaft and meshing with the connecting bevel gear; a rotating wheel fixedly installed at the top end of the transmission shaft; an eccentric shaft fixedly disposed on one side of the top surface of the rotating wheel; a striking hammer disposed on one side of the eccentric shaft that moves towards or away from the feed hopper; and connecting rods at both ends rotatably connected to the eccentric shaft and the striking hammer respectively at the ends away from the feed hopper. By converting the rotational motion of the support shaft into the reciprocating striking motion of the striking hammer, this design not only achieves the striking of the feed hopper, preventing material blockage, but also improves the smoothness and uniformity of the feed. Through the connecting bevel gear, transmission bevel gear, and eccentric shaft, the striking assembly can fully utilize the power of the crushing assembly without additional energy input. This design further reduces the energy consumption of the entire device and improves energy utilization efficiency.

[0012] Preferably, in order to ensure the movement of the hammer, a limiting plate is fixedly installed on the feed hopper, and a through hole is provided on the limiting plate. The hammer passes through the through hole laterally and is slidably connected in the through hole. By fixing the limiting plate on the feed hopper and providing a through hole on the limiting plate, the hammer can be slidably limited, ensuring the stability and accuracy of the hammer during the striking process.

[0013] Preferably, to prevent the hammer from moving out of the through hole, the diameter of the end of the hammer near the feed hopper is larger than the diameter of the through hole. This design can prevent the hammer from moving out of the through hole due to vibration or external force, enhance the stability of the hammer during the striking process, and ensure the accuracy and continuity of the striking action.

[0014] The extrusion molding device for this multi-metal catalyst is designed with a combination of a cylindrical die head, a spiral stirring mechanism, and a crushing component. It can mix the multi-metal raw materials thoroughly while simultaneously pushing the mixed materials toward the cylindrical die head, allowing the mixed materials to be extruded smoothly to form a regular honeycomb cylindrical multi-metal catalyst. This achieves the integration of raw material mixing and molding, effectively improving catalyst quality and production efficiency.

[0015] The extrusion molding device for this multi-metal catalyst converts the rotational motion of the support shaft into the reciprocating striking motion of the hammer. This design not only achieves the striking of the feed hopper to prevent material blockage, but also improves the smoothness and uniformity of the feed.

[0016] The extrusion molding device of this multi-metal catalyst can realize the power transmission between the screw conveyor and the crushing component through the connection of the synchronous pulley and the synchronous toothed belt. This design does not require an additional power source for the crushing component, which greatly reduces the energy consumption of the whole device and improves the energy utilization efficiency.

[0017] The extrusion molding device for this multi-metal catalyst is driven by a connecting bevel gear, a transmission bevel gear, and an eccentric shaft. The striking component can fully utilize the power of the crushing component without the need for additional energy input. This design further reduces the energy consumption of the entire device and improves energy utilization efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an extrusion molding apparatus for a polymetallic catalyst;

[0019] Figure 2 A cross-sectional view of an extrusion molding apparatus for a polymetallic catalyst;

[0020] Figure 3 This is a schematic diagram of the striking component in an extrusion molding apparatus for a multi-metal catalyst.

[0021] In the picture:

[0022] 1. Base;

[0023] 2. Cylinder body;

[0024] 3. Feed hopper;

[0025] 4. Cylindrical mold head;

[0026] 5. Spiral stirring mechanism; 51. Screw auger; 52. Drive motor;

[0027] 6. Crushing assembly; 61. Support shaft; 62. Crushing blade; 63. Connecting gear; 64. Transmission assembly; 641. Synchronous pulley; 642. Synchronous toothed belt;

[0028] 7. Striking assembly; 71. Mounting bracket; 72. Connecting bevel gear; 73. Transmission bevel gear; 74. Drive shaft; 75. Rotary wheel; 76. Eccentric shaft; 77. Connecting rod; 78. Striking hammer; 79. Limiting plate. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] This embodiment provides an extrusion molding apparatus for a multi-metal catalyst, such as... Figures 1-3 As shown, the extrusion molding device includes a base 1, a cylinder 2 fixedly mounted on the base 1, and a feed hopper 3 fixedly mounted on the cylinder 2. The extrusion molding device also includes a cylindrical die head 4 fixedly mounted at one end of the cylinder 2, a spiral stirring mechanism 5 disposed inside the cylinder 2 for extruding material from the cylindrical die head 4, and a crushing component 6 disposed inside the feed hopper 3 for crushing the material; one end of the crushing component 6 is provided with a striking component 7 for striking the feed hopper 3.

[0031] In use, the spiral stirring mechanism 5, crushing component 6, and striking component 7 are activated, and the material is then fed into the hopper 3. The material entering the hopper 3 is first crushed by the crushing component 6. Then, the crushed material continues to fall into the cylinder 2. At this time, the spiral stirring mechanism 5 in the cylinder 2 stirs and conveys the material, causing the material to be subjected to compression and shearing forces in the cylinder 2, further plasticizing and uniformly mixing it. Then, the uniformly mixed material is pushed by the spiral stirring mechanism 5 to the cylindrical mold head 4. At the cylindrical mold head 4, the material is subjected to strong extrusion force and is forced to be extruded from the die hole of the cylindrical mold head 4 to form a product with a specific shape and size. However, during the crushing and extrusion process, the striking component 7 will strike the hopper 3 to prevent the material from clogging in the hopper 3 and ensure that the material falls smoothly into the cylinder 2.

[0032] Specifically, the spiral stirring mechanism 5 includes a threaded auger 51 that runs laterally through the end of the cylinder 2 away from the cylindrical mold head 4 and is rotatably connected inside the cylinder 2, and a drive motor 52 that is fixedly mounted on the base 1 and fixedly connected to the threaded auger 51.

[0033] When the drive motor 52 is started, after the material crushed by the crushing component 6 enters the cylinder 2 from the feed hopper 3, the drive motor 52 generates rotational power and transmits it to the screw auger 51. After receiving the rotational power, the screw auger 51 starts to rotate in the cylinder 2 at a certain speed. As the screw auger 51 rotates, its spiral blades will continuously push the material in the cylinder 2 forward. This pushing action not only helps the material to mix and distribute evenly, but also ensures that the material can be smoothly conveyed from one end of the cylinder 2 to one end of the cylindrical mold head 4. At the same time, the rotation of the spiral blades will also generate a certain shearing and extrusion action on the material, which helps the material to plasticize and form. When the material is conveyed to the end of the cylinder 2 near the cylindrical mold head 4, the material will be subjected to strong extrusion force and forced to be squeezed out from the mold hole of the cylindrical mold head 4.

[0034] Furthermore, the crushing assembly 6 includes a support shaft 61 that runs horizontally through the feed hopper 3 and is symmetrically rotatably connected inside the feed hopper 3, crushing blades 62 that are fixedly mounted on the two support shafts 61 respectively, a connecting gear 63 that is mounted on the outside of the feed hopper 3 and fixedly connected to the two support shafts 61 respectively, and a transmission assembly 64 that is mounted on one of the support shafts 61 at the end away from the connecting gear 63 and connected to the threaded auger 51, wherein the two connecting gears 63 mesh with each other;

[0035] When the drive motor 52 is started to drive the screw conveyor 51 to rotate, through the transmission action of the transmission component 64, one of the support shafts 61 connected to the transmission component 64 will also rotate synchronously. Then, the connecting gear 63 on the support shaft 61 will also rotate synchronously. Since the connecting gears 63 on the two support shafts 61 mesh with each other, when one support shaft 61 rotates, the other support shaft 61 will also rotate in the opposite direction. As a result, the crushing blades 62 on the two support shafts 61 will rotate synchronously but in opposite directions. Therefore, a shearing force field will be formed between the two crushing blades 62. When the material enters the feed hopper 3, it will be crushed into smaller particles by this shearing force field.

[0036] Furthermore, the transmission assembly 64 includes a synchronous pulley 641 that is fixedly sleeved on one of the support shafts 61 at the end away from the connecting gear 63 and the threaded auger 51 at the end near the drive motor 52, and a synchronous toothed belt 642 disposed on the two synchronous pulleys 641. The two synchronous pulleys 641 are connected and transmit power through the synchronous toothed belt 642.

[0037] When the drive motor 52 is started to drive the threaded auger 51 to rotate, the synchronous pulley 641 connected to the threaded auger 51 will rotate synchronously. Since the synchronous pulley 641 on one of the support shafts 61 of the crushing component 6 and the synchronous pulley 641 on the drive motor 52 are connected and transmit power through the synchronous toothed belt 642, when the synchronous pulley 641 on the threaded auger 51 rotates, the synchronous pulley 641 on one of the support shafts 61 will also drive the support shaft 61 to rotate synchronously. Thus, the two support shafts 61 of the crushing component 6 will achieve synchronous but opposite rotation through the meshing of the connecting gear 63.

[0038] Furthermore, the striking assembly 7 includes a mounting bracket 71 fixedly mounted on the base 1 at one end of one of the support shafts 61 near the synchronous pulley 641, a connecting bevel gear 72 fixedly sleeved on one of the support shafts 61, a drive shaft 74 longitudinally passing through the mounting bracket 71 and rotatably connected to the mounting bracket 71, a drive bevel gear 73 fixedly sleeved on the bottom end of the drive shaft 74 and meshing with the connecting bevel gear 72, a rotating wheel 75 fixedly mounted on the top end of the drive shaft 74, an eccentric shaft 76 fixedly disposed on one side of the top surface of the rotating wheel 75, a striking hammer 78 disposed on one side of the eccentric shaft 76 and moving towards or away from the feed hopper 3, and a connecting rod 77 at both ends rotatably connected to the ends of the eccentric shaft 76 and the striking hammer 78 away from the feed hopper 3, respectively.

[0039] When the drive motor 52 is started to drive the screw auger 51 to rotate, and drives one of the support shafts 61 to rotate through the transmission assembly 64, the connecting bevel gear 72 connected to the support shaft 61 will also rotate synchronously. Since the mounting bracket 71 is connected to the transmission shaft 74, and the transmission shaft 74 is connected to the transmission bevel gear 73 that meshes with the connecting bevel gear 72, the transmission shaft 74 will also rotate synchronously when the connecting bevel gear 72 rotates. Since the transmission shaft 74 is connected to the wheel 75, and the wheel 75 is connected to the eccentric shaft 76, the rotation of the transmission shaft 74 will also cause the wheel 75 and the eccentric shaft 76 to rotate synchronously. At this time, due to the eccentric design of the eccentric shaft 76, the connecting rod 77 will drive the hammer 78 to reciprocate on one side of the feed hopper 3. The hammer 78, driven by the connecting rod 77, will continuously move closer to or away from the feed hopper 3 to strike the feed hopper 3, thereby effectively preventing the material from blocking or accumulating at the feed hopper 3.

[0040] In order to ensure the movement of the hammer 78, a limiting plate 79 is fixedly installed on the feed hopper 3. The limiting plate 79 has a through hole, through which the hammer 78 passes and is slidably connected. By fixing the limiting plate 79 on the feed hopper 3 and setting the through hole on the limiting plate 79, the hammer 78 can be slidably limited, ensuring the stability and accuracy of the hammer 78 during the striking process.

[0041] In addition, to prevent the hammer 78 from moving out of the through hole, the diameter of the end of the hammer 78 near the feed hopper 3 is larger than the diameter of the through hole. This design can prevent the hammer 78 from moving out of the through hole due to vibration or external force, enhance the stability of the hammer 78 during the striking process, and ensure the accuracy and continuity of the striking action.

[0042] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An extrusion molding apparatus for a multi-metal catalyst, comprising a base (1), a cylinder (2) fixedly disposed on the base (1), and a feed hopper (3) fixedly disposed on the cylinder (2), characterized in that: The extrusion molding device also includes a cylindrical die head (4) fixedly disposed at one end of the cylinder (2), a spiral stirring mechanism (5) disposed in the cylinder (2) for extruding the material from the cylindrical die head (4), and a crushing component (6) disposed in the feed hopper (3) for crushing the material. One end of the crushing component (6) is provided with a striking component (7) for striking the feed hopper (3).

2. The extrusion molding apparatus for the multi-metal catalyst according to claim 1, characterized in that: The spiral stirring mechanism (5) includes a threaded auger (51) that runs laterally through the cylinder (2) away from the cylindrical mold head (4) and is rotatably connected inside the cylinder (2), and a drive motor (52) that is fixedly mounted on the base (1) and fixedly connected to the threaded auger (51).

3. The extrusion molding apparatus for the multi-metal catalyst according to claim 2, characterized in that: The crushing assembly (6) includes a support shaft (61) that runs horizontally through the feed hopper (3) and is symmetrically rotatably connected to the feed hopper (3), crushing blades (62) that are fixedly mounted on the two support shafts (61), a connecting gear (63) that is mounted on the outside of the feed hopper (3) and fixedly connected to the two support shafts (61), and a transmission assembly (64) that is mounted on one of the support shafts (61) away from the connecting gear (63) and connected to the threaded auger (51). The two connecting gears (63) mesh with each other.

4. The extrusion molding apparatus for the multi-metal catalyst according to claim 3, characterized in that: The transmission assembly (64) includes a synchronous pulley (641) fixedly sleeved on one of the support shafts (61) away from the connecting gear (63) and on the threaded auger (51) near the drive motor (52), and a synchronous toothed belt (642) disposed on the two synchronous pulleys (641). The two synchronous pulleys (641) are connected and transmit power through the synchronous toothed belt (642).

5. The extrusion molding apparatus for the multi-metal catalyst according to claim 4, characterized in that: The striking assembly (7) includes a mounting bracket (71) fixedly mounted on the base (1) at a position corresponding to one of the support shafts (61) near the end of the synchronous pulley (641), a connecting bevel gear (72) fixedly sleeved on one of the support shafts (61), a transmission shaft (74) longitudinally passing through the mounting bracket (71) and rotatably connected to the mounting bracket (71), a transmission bevel gear (73) fixedly sleeved on the bottom end of the transmission shaft (74) and meshing with the connecting bevel gear (72), a rotating wheel (75) fixedly mounted on the top end of the transmission shaft (74), an eccentric shaft (76) fixedly disposed on one side of the top surface of the rotating wheel (75), a striking hammer (78) disposed on one side of the eccentric shaft (76) that moves closer to or away from the feed hopper (3), and a connecting rod (77) whose two ends are rotatably connected to the eccentric shaft (76) and the striking hammer (78) respectively away from the feed hopper (3).

6. The extrusion molding apparatus for a multi-metal catalyst according to claim 5, characterized in that: A limiting plate (79) is fixedly installed on the feed hopper (3). A through hole is provided on the limiting plate (79). The hammer (78) passes through the through hole laterally and is slidably connected in the through hole.

7. The extrusion molding apparatus for a multi-metal catalyst according to claim 6, characterized in that: The diameter of the hammer (78) near the end of the feed hopper (3) is larger than the diameter of the through hole.

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