An inclined mixing device for aluminum powder production
By designing an inclined mixing device and a spiral guide plate, combined with inert gas protection, the problems of uneven aluminum powder mixing and dust generation were solved, achieving an efficient and safe aluminum powder mixing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUJING HUAYIXING NEW MATERIAL CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-21
AI Technical Summary
Existing aluminum powder mixing equipment suffers from problems such as uneven mixing, low efficiency, and poor dust prevention. In particular, V-type mixers and double cone rotary mixers are prone to generating dust and aluminum powder clumping during use.
An inclined mixing device is adopted, which utilizes a combination of mixing drum and spiral guide plate, combined with inert gas protection, to ensure that aluminum powder is evenly distributed during the mixing process and to avoid dust generation.
This method achieves uniform mixing of aluminum powder, improves mixing efficiency, effectively prevents dust generation, and enhances safety and production efficiency.
Smart Images
Figure CN224524571U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metal powder preparation and production technology, specifically relating to an inclined horizontal mixing device for aluminum powder production. Background Technology
[0002] Aluminum powder, often referred to as "silver powder," holds a crucial position in the field of metallic pigments. Its applications are widespread, demand continues to rise, and it comes in a rich variety of types. There are numerous production processes for aluminum powder, such as ball milling, atomization, and impact crushing, each with its unique characteristics. Based on these different processes, aluminum powder can be further subdivided into ball-milled aluminum powder, atomized aluminum powder, and aluminum shavings. Among these, atomized aluminum powder, with its smaller particle size, higher safety, and production efficiency, is replacing traditional aluminum powder as a new direction for refractory materials, improving product quality and reducing safety hazards. The production process of atomized aluminum powder includes raw material preparation, aluminum liquid pretreatment, atomization spraying, graded collection, and drying. During raw material preparation, to ensure the uniformity and stability of the aluminum powder, it is necessary to mix the aluminum powder. The purpose of aluminum powder mixing is to thoroughly combine different batches or different specifications of aluminum powder to obtain a uniform aluminum powder product. In the aluminum powder mixing process, various mixing equipment can be used, such as V-type mixers and double-cone rotary mixers. These devices utilize the principle of mechanical motion to cause various movements of the aluminum powder inside the mixer, such as rotation, tumbling, and oscillation, thereby achieving mixing. However, the above-mentioned mixers have the following shortcomings in the aluminum powder mixing process: V-type mixers cause the mixture to fall in large clumps when tumbling, making it difficult to ensure the uniformity of mixing, and the inability to fix the feed inlet leads to a lot of dust during feeding, causing environmental pollution, safety hazards, and product loss. Double-helix mixers, on the other hand, can squeeze the aluminum powder into flakes, blocks, and clumps. At the same time, some aluminum powder will fall to the bottom of the mixer during the mixing process, resulting in incomplete mixing. The above two types of mixers generally suffer from uneven mixing, low mixing efficiency, and poor dust prevention. Therefore, it is objectively necessary to develop a horizontally inclined mixing device for aluminum powder production with a reasonable structural design that can effectively improve the mixing effect and efficiency while avoiding dust generation. Summary of the Invention
[0003] The purpose of this utility model is to provide a horizontally inclined mixing device for aluminum powder production that has a reasonable structural design, which can effectively improve the mixing effect and mixing efficiency, and avoid dust generation.
[0004] The purpose of this utility model is achieved as follows: It includes a support base and a mixing drum. A first bracket and a second bracket are symmetrically mounted on the support base. The height of the first bracket is higher than that of the second bracket. A first bearing seat is mounted on the top of the first bracket, and a second bearing seat is mounted on the top of the second bracket. The mixing drum is rotatably mounted on the first and second bearing seats via bearings. A feed hood is rotatably mounted on the outer side of the higher end of the mixing drum via bearings. A feed pipe extending into the mixing drum is mounted on the top of the feed hood. A discharge hood is rotatably mounted on the outer side of the lower end of the mixing drum via bearings. A discharge pipe is provided at the bottom of the discharge hood. Both the discharge pipe and the feed pipe are equipped with control valves. The bottoms of both the feed hood and the discharge hood are fixedly connected to the support base via fixing brackets. A spiral guide plate is installed inside the mixing drum. An air inlet pipe is provided at the end of the discharge hood, and an air outlet pipe is provided at the end of the feed hood. A gear transmission mechanism connected to the mixing drum is mounted on the support base.
[0005] Compared with existing technologies, this device has the following advantages: First, it uses a rotary mixing drum instead of the traditional V-type mixer or double-cone rotary mixer. The mixing drum has a larger volume than the V-type mixer or double-cone rotary mixer, allowing for the mixing of more aluminum powder at a time, effectively increasing the weight of aluminum powder mixed in one pass. Second, the mixing drum is equipped with a spiral guide plate. As the aluminum powder rotates within the drum, it moves obliquely upwards with the spiral guide plate. Upon reaching the top, it falls back down. Each time the aluminum powder falls, its upward movement prevents it from mixing with other powder in the same area. As the aluminum powder moves forward continuously within the mixing drum, the mixing of aluminum powder is achieved. The mixing drum and spiral guide plate not only prevent the aluminum powder from clumping or agglomerating, ensuring uniform mixing, but also significantly improve the mixing efficiency. Secondly, this device is equipped with inlet and outlet hoods at both ends of the mixing drum. These hoods seal both ends of the mixing drum, preventing dust from being generated during rotation and providing dust prevention. It has the advantages of reasonable structure, uniform mixing, high mixing efficiency, and good dust prevention effect, making it easy to promote and use. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0007] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle;
[0008] Figure 3 This is a schematic diagram of the connection structure between the distribution cone shroud 21 and the gas branch pipe 20 in this utility model;
[0009] In the diagram: 1-Support base, 2-Mixing roller, 3-First bracket, 4-Second bracket, 5-First bearing seat, 6-Second bearing seat, 7-Feed hood, 8-Feed pipe, 9-Discharge hood, 10-Discharge pipe, 11-Fixed frame, 12-Spiral guide plate, 13-Air inlet pipe, 14-Air outlet pipe, 15-First motor, 16-Transmission gear, 17-Transmission gear ring, 18-Discharge partition, 19-Gas distribution pipe, 20-Gas branch pipe, 21-Distribution cone, 22-Transmission rod, 23-Second motor, 24-Driving bevel gear, 25-Driven bevel gear, 26-Spiral blade, 27-Dustproof net, 28-Breathable sponge. Detailed Implementation
[0010] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the teachings of the present invention shall fall within the protection scope of the present invention.
[0011] like Figures 1-3As shown, this utility model includes a support base 1 and a mixing drum 2. The mixing drum 2 is designed with a cylindrical structure in the middle and conical structures at both ends. The mixing drum 2 can mix a larger weight of aluminum powder at a time, effectively increasing the weight of aluminum powder mixed in one go. A first bracket 3 and a second bracket 4 are symmetrically installed on the support base 1. The height of the first bracket 3 is higher than that of the second bracket 4. A first bearing seat 5 is installed on the top of the first bracket 3, and a second bearing seat 6 is installed on the top of the second bracket 4. The mixing drum 2 is rotatably mounted on the first bearing seat 5 and the second bearing seat 6 via bearings. The mixing drum 2 is installed at an angle on the first bearing seat 5 and the second bearing seat 6 to facilitate aluminum powder discharge. A feed hood 7 is rotatably mounted on the outer side of the higher end of the mixing drum 2 via bearings. A feed pipe 8 extending into the mixing drum 2 is installed on the top of the feed hood 7. A discharge hood 9 is rotatably mounted on the outer side of the lower end of the mixing drum 2 via bearings. The bottom of the discharge hood 9 is provided with... The mixing drum 2 has a discharge pipe 10, and both the discharge pipe 10 and the inlet pipe 8 are equipped with control valves. The bottoms of the inlet hood 7 and the discharge hood 9 are fixedly connected to the support base 1 via a fixing frame 11. A spiral guide plate 12 is installed inside the mixing drum 2. An air inlet pipe 13 is provided at the end of the discharge hood 9, and an air outlet pipe 14 is provided at the end of the inlet hood 7. Flow valves are installed on the air inlet pipe 13 and the air outlet pipe 14 to facilitate control of the flow rate of inert gas entering the mixing drum 2. Inert gas is introduced into the mixing drum 2 through the air inlet pipe 13. The inert gas entering the mixing drum 2 protects the aluminum powder during mixing and ensures safety during the mixing process. Nitrogen gas, which is used in the prior art, can be used as the inert gas. The inlet hood 7 and the discharge hood 9 can seal both ends of the mixing drum 2 to prevent dust from being generated during the rotation of the mixing drum 2, thus playing a dustproof role. A gear transmission mechanism connected to the mixing drum 2 is installed on the support base 1.
[0012] The working process of this device is as follows: First, open the control valve on the feed pipe 8 and close the control valve on the discharge pipe 10. Then, start the gear transmission mechanism, which drives the mixing drum 2 to rotate forward. Inert gas is supplied into the mixing drum 2 through the air inlet pipe 13. Then, aluminum powder of different specifications is added into the mixing drum 2 through the discharge pipe 10. As the aluminum powder enters the mixing drum 2, it moves continuously towards the discharge pipe 10 with the rotation of the mixing drum 2. During the movement of the aluminum powder in the mixing drum 2, due to the spiral guide plate 12 installed inside the mixing drum 2, the aluminum powder moves obliquely upward with the spiral guide plate 12. When it reaches the top, it falls off by itself. Each time the aluminum powder falls, it does not mix with the aluminum powder in the same area because of its oblique upward movement. As the aluminum powder moves forward continuously in the mixing drum 2, the purpose of mixing the aluminum powder is achieved. The mixing drum 2 and the spiral guide plate 12 not only prevent the aluminum powder from clumping or agglomerating, but also ensure uniform mixing of the aluminum powder and significantly improve the aluminum powder's efficiency. To improve the efficiency of aluminum powder mixing, when the aluminum powder entering the mixing drum 2 reaches the processing capacity of the mixing drum 2, the control valve on the feed pipe 8 is closed to stop feeding. Then, the gear transmission mechanism is used to control the mixing drum 2 to continuously rotate forward or backward, allowing the aluminum powder to be mixed in the mixing drum 2 for a certain period of time. At the same time, inert gas is sent into the mixing drum 2 through the air inlet pipe 13. The inert gas moves towards the feed hood 7 of the mixing drum 2 and is finally discharged through the air outlet pipe 14. The introduction of inert gas into the mixing drum 2 can ensure the safety of the aluminum powder mixing process. When the aluminum powder reaches the mixing requirement, the control valve on the discharge pipe 10 is opened, and the gear transmission mechanism is used to control the mixing drum 2 to rotate forward. The uniformly mixed aluminum powder will enter the discharge hood 9 from the end of the mixing drum 2 and then be discharged through the discharge pipe 10. After the aluminum powder in the mixing drum 2 has been discharged, the control valve on the discharge pipe 10 is closed, the control valve on the feed pipe 8 is opened, and the mixing drum 2 is fed again for re-mixing.
[0013] Furthermore, the gear transmission mechanism includes a first motor 15, a transmission gear 16, and a transmission gear ring 17. The first motor 15 is a reversible motor used in the prior art, and finished products can be directly purchased according to the power used. The transmission gear ring 17 is fixedly installed on the outer wall of the middle part of the mixing drum 2. The first motor 15 is mounted on the support base 1 through a base. The transmission gear 16 is installed on the output shaft of the first motor 15 and meshes with the transmission gear ring 17. When the first motor 15 rotates forward or reverse, it can drive the transmission gear 16 to rotate forward or reverse, and thus drive the mixing drum 2 to rotate forward or reverse through the transmission gear ring 17.
[0014] Furthermore, to ensure uniform distribution of the inert gas entering the mixing drum, a discharge baffle 18 is installed inside the discharge hood 9 between the inlet pipe 13 and the outlet pipe 10. A central hole is machined at the center of the discharge baffle 18, and a gas distribution pipe 19 is installed through the central hole. One end of the gas distribution pipe 19 extends into the mixing drum 2, and a sealing plate is installed at the end of the gas distribution pipe 19 extending into the mixing drum 2. Multiple sets of gas branch pipes 20 are installed at equal intervals along the axial direction of the gas distribution pipe 19, with each set consisting of two gas branch pipes 20. The two gas branch pipes 20 are located at the gas distribution pipe 10... The gas distribution pipe 19 is evenly distributed on the gas distribution pipe 19. Each gas branch pipe 20 has a distribution cone hood 21 installed at its end. Multiple vent holes are evenly distributed on the side wall of the distribution cone hood 21. During use, the inert gas entering through the inlet pipe 13 is separated by the outlet baffle 18 and enters the gas distribution pipe 19, then enters each gas branch pipe 20, and finally is evenly distributed within the mixing drum 2 through the vent holes on the distribution cone hood 21. Preferably, to improve the mixing effect of aluminum powder, a transmission rod 22 is horizontally rotatably installed inside the gas distribution pipe 19. One end of the transmission rod 22 extends to the outside of the outlet hood 9. The outside of the outlet hood 9 is equipped with... A second motor 23 is connected to the transmission rod 22. The second motor 23 is a structure used in the prior art; a finished product can be directly purchased based on the power required. Multiple driving bevel gears 24 are evenly spaced on the transmission rod 22 inside the gas distribution pipe 19. One end of the gas branch pipe 20 is rotatably mounted on the gas distribution pipe 19 and extends into the gas distribution pipe 19. A driven bevel gear 25 is installed on the outside of the gas branch pipe 20 extending into the gas distribution pipe 19. The driven bevel gear 25 and the driving bevel gear 24 mesh with each other. In use, the second motor 23 drives the rotating rod 22 to rotate, and the rotation of the rotating rod 22 drives the driving bevel gear 24 to rotate. The rotation of gear 24 drives the rotation of driven bevel gear 25, which in turn drives the rotation of gas branch pipe 20. The rotation of gas branch pipe 20 can stir the aluminum powder in mixing drum 2 and distribute inert gas evenly in mixing drum 2 to mix with aluminum powder, thereby improving safety. Furthermore, a spiral blade 26 is provided on the outer wall of gas branch pipe 20 located outside gas distribution pipe 19. The spiral blade 26 rotates with gas branch pipe 20, and the rotating spiral blade 26 can further stir and mix aluminum powder, thereby achieving the purpose of improving the efficient mixing of aluminum powder.
[0015] Furthermore, to prevent aluminum powder from flowing back into the gas branch pipe 20, a layer of dustproof net 27 is fixedly installed on the inner wall of the distribution cone hood 21.
[0016] Furthermore, to prevent aluminum powder from escaping from the vent pipe 14, a breathable sponge 28 is installed at the inlet of the vent pipe 14.
Claims
1. A horizontally inclined mixing device for aluminum powder production, characterized in that: The system includes a support base (1) and a mixing drum (2). A first bracket (3) and a second bracket (4) are symmetrically mounted on the support base (1). The height of the first bracket (3) is higher than the height of the second bracket (4). A first bearing seat (5) is mounted on the top of the first bracket (3), and a second bearing seat (6) is mounted on the top of the second bracket (4). The mixing drum (2) is rotatably mounted on the first bearing seat (5) and the second bearing seat (6) via bearings. A feed hood (7) is rotatably mounted on the outer side of the higher end of the mixing drum (2) via bearings. A feed pipe (8) extending into the mixing drum (2) is mounted on the top of the feed hood (7). A discharge hood (9) is rotatably mounted on the outer side of the lower end of the mixing drum (2) via a bearing. A discharge pipe (10) is provided at the bottom of the discharge hood (9). Control valves are provided on both the discharge pipe (10) and the feed pipe (8). The bottoms of the feed hood (7) and the discharge hood (9) are fixedly connected to the support base (1) via a fixing frame (11). A spiral guide plate (12) is installed inside the mixing drum (2). An air inlet pipe (13) is provided at the end of the discharge hood (9). An air outlet pipe (14) is provided at the end of the feed hood (7). A gear transmission mechanism that is connected to the mixing drum (2) is installed on the support base (1).
2. The inclined horizontal mixing device for aluminum powder production according to claim 1, characterized in that: The gear transmission mechanism includes a first motor (15), a transmission gear (16) and a transmission gear ring (17). The transmission gear ring (17) is fixedly installed on the outer wall of the middle part of the mixing drum (2). The first motor (15) is mounted on the support base (1) through a base. The transmission gear (16) is installed on the output shaft of the first motor (15) and meshes with the transmission gear ring (17).
3. The inclined horizontal mixing device for aluminum powder production according to claim 1, characterized in that: A discharge baffle (18) is installed inside the discharge hood (9) between the air inlet pipe (13) and the discharge pipe (10). A central hole is machined at the center of the discharge baffle (18). A gas distribution pipe (19) is installed through the central hole. One end of the gas distribution pipe (19) extends into the mixing drum (2). A sealing plate is installed at the end of the gas distribution pipe (19) extending into the mixing drum (2). Multiple sets of gas branch pipes (20) are installed at equal intervals along the axial direction of the gas distribution pipe (19). There are two gas branch pipes (20) in each set. The two gas branch pipes (20) are evenly distributed on the gas distribution pipe (19). A distribution cone hood (21) is installed at the end of each gas branch pipe (20). Multiple ventilation holes are evenly distributed on the side wall of the distribution cone hood (21).
4. The inclined horizontal mixing device for aluminum powder production according to claim 3, characterized in that: A transmission rod (22) is horizontally rotatably mounted inside the gas distribution pipe (19). One end of the transmission rod (22) extends to the outside of the discharge hood (9). A second motor (23) connected to the transmission rod (22) is mounted on the outside of the discharge hood (9). Multiple active bevel gears (24) are installed at equal intervals on the transmission rod (22) inside the gas distribution pipe (19). One end of the gas branch pipe (20) is rotatably mounted on the gas distribution pipe (19) and extends into the gas distribution pipe (19). A driven bevel gear (25) is installed on the outside of the gas branch pipe (20) extending into the gas distribution pipe (19). The driven bevel gear (25) and the active bevel gear (24) mesh with each other.
5. The inclined horizontal mixing device for aluminum powder production according to claim 4, characterized in that: A spiral blade (26) is provided on the outer wall of the gas branch pipe (20) located outside the gas distribution pipe (19).
6. The inclined horizontal mixing device for aluminum powder production according to claim 3, characterized in that: A layer of dustproof net (27) is fixedly installed on the inner wall of the distribution cone (21).
7. The inclined horizontal mixing device for aluminum powder production according to claim 1, characterized in that: A breathable sponge (28) is installed at the inlet of the air outlet pipe (14).