A multi-stage airflow classification device for molybdenum powder

Abstract

This utility model belongs to the field of molybdenum powder processing technology, specifically relating to a multi-stage airflow classification device for molybdenum powder, including a frame; an airflow classification mechanism and a dust filter are fixedly installed on the top of the frame; wherein, the airflow classification mechanism includes a mounting bracket fixedly installed on the top of the tank, a reciprocating assembly fixedly installed at the bottom of the mounting bracket, a cylinder provided at the bottom of the reciprocating assembly, and a filter assembly provided at the bottom of the reciprocating assembly, the reciprocating assembly and the filter assembly being used to disperse molybdenum powder. This utility model can form a multi-stage airflow classification device for molybdenum powder using two sets of airflow classification mechanisms and dust filters, and with the special improvements to the internal structure of the airflow classification mechanism, the classification efficiency of molybdenum powder can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of molybdenum powder processing technology, specifically relating to a multi-stage airflow classification device for molybdenum powder. Background Technology

[0002] Air classification is a key technology that uses aerodynamics and centrifugal force to separate particles according to size, and it is widely used in industries such as chemical, metallurgy, and ceramics. Molybdenum powder, as an important industrial raw material, has its application performance largely dependent on its particle size distribution. Typically, the raw powder needs to be separated into products of different particle size ranges, such as coarse powder, medium-sized powder, and ultrafine powder, to meet the needs of different application scenarios.

[0003] Problems with existing technology: Currently, most air classifiers are single-stage designs. This type of structure has the problem of low classification efficiency, especially for micron and submicron ultrafine powders, which is not very efficient and can easily lead to the waste of valuable materials. In addition, existing air classifiers cannot effectively disperse molybdenum powder that has formed lumps during operation, thus affecting the working efficiency of the air classifier. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage airflow classifier for molybdenum powder, which can be composed of two sets of airflow classifiers and a dust filter to form a multi-stage airflow classifier for molybdenum powder. At the same time, with the special improvements made to the internal structure of the airflow classifier, the classification efficiency of molybdenum powder can be effectively improved.

[0005] The specific technical solution adopted by this utility model is as follows: A multi-stage airflow classifier for molybdenum powder includes a frame; An airflow classification mechanism and a dust filter are fixedly installed on the top of the frame; The airflow classification mechanism includes a mounting frame fixedly installed on the top of the tank, a reciprocating assembly fixedly installed at the bottom of the mounting frame, a cylinder at the bottom of the reciprocating assembly, and a filter assembly at the bottom of the reciprocating assembly. The reciprocating assembly and the filter assembly are used to disperse molybdenum powder.

[0006] The airflow classification mechanism is provided in two sets, and the two sets of airflow classification mechanisms are connected by a pipe. One set of airflow classification mechanisms is connected to a dust filter, and the bottom of the dust filter is connected to a fan.

[0007] The surface of the tank has a through air inlet, which is inclined so that the gas moves spirally upward inside the tank and pushes the molybdenum powder through the filter assembly.

[0008] The filter assembly includes a filter screen frame that is slidably installed on the outside of the cylinder, and the bottom of the filter screen frame is fixedly installed to the bracket via a connecting rod.

[0009] The top of the filter frame is abutted by a spring member, which is used by a reciprocating assembly to push the filter frame to reciprocate vertically. The filter frame is composed of an annular filter frame and an annular filter screen.

[0010] The reciprocating assembly includes a drive assembly fixedly installed inside the mounting bracket. The drive assembly is used to drive the linkage to drive the rotating shaft to reciprocate vertically.

[0011] The rotating shaft is connected to the motor drive, so that the rotating shaft drives the dispersing disc to rotate. The bottom of the rotating shaft is rotatably connected to the filter assembly, and pushes the filter assembly to move vertically back and forth inside the tank.

[0012] The technical effects achieved by this utility model are as follows: This invention utilizes a reciprocating assembly installed between the top of the cylinder and the bottom of the mounting frame. The activation of the drive assembly drives the linkage to move the rotating shaft vertically in a reciprocating motion. The motor drives the rotating shaft to rotate the dispersing disc. Since a feed inlet is provided on one side of the cylinder, molybdenum powder can enter the interior of the tank through the cylinder and fall onto the surface of the dispersing disc. Due to the high-speed rotation and vertical reciprocating motion of the dispersing disc, coarse and fine molybdenum powders can be dispersed, thereby improving the airflow classification of molybdenum powder.

[0013] This invention utilizes an air inlet on one side of the tank. By tilting the air inlet, the gas spirals upward as it enters the inlet, carrying fine molybdenum powder into another airflow classification mechanism. This mechanism classifies the powder in the same way and then further classifies it through a dust filter. Therefore, by linking the two airflow classification mechanisms with the dust filter, multi-stage airflow classification of molybdenum powder can be achieved, thereby improving the extraction rate of molybdenum powder. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall installation structure of this utility model; Figure 2 This is a schematic diagram of the airflow grading mechanism in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the tank in this utility model; Figure 4 This is a utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 This is a utility model Figure 3 Enlarged schematic diagram of the structure at point B.

[0015] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Airflow classification mechanism; 21. Tank; 22. Cylinder; 23. Mounting bracket; 24. Reciprocating assembly; 241. Drive assembly; 242. Linkage component; 243. Rotating shaft; 244. Motor; 245. Dispersion disc; 25. Filter assembly; 251. Filter screen frame; 252. Spring component; 253. Connecting rod; 254. Bracket; 26. Air inlet; 3. Dust filter. Detailed Implementation

[0016] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0017] like Figure 1-5 As shown, a multi-stage airflow classifier for molybdenum powder includes a frame 1; An airflow classification mechanism 2 and a dust filter 3 are fixedly installed on the top of the frame 1; The airflow classification mechanism 2 includes a mounting frame 23 fixedly installed on the top of the tank 21. A reciprocating assembly 24 is fixedly installed at the bottom of the mounting frame 23. A cylinder 22 is provided at the bottom of the reciprocating assembly 24. A filter assembly 25 is provided at the bottom of the reciprocating assembly 24. The reciprocating assembly 24 and the filter assembly 25 are used to disperse molybdenum powder.

[0018] See attached document Figure 1 , Figure 2 and Figure 3 In this embodiment, the airflow classification mechanism 2 is provided in two sets, and the two sets of airflow classification mechanisms 2 are connected by a pipe. One set of airflow classification mechanisms 2 is connected to the dust filter 3, and the bottom of the dust filter 3 is connected to the fan.

[0019] In the above embodiment, by linking two sets of airflow classification mechanisms 2 with a set of dust filters 3, the multi-stage airflow classification effect of molybdenum powder can be achieved. After multi-stage airflow classification, the gas can be discharged by the fan installed at the bottom of the dust filters 3.

[0020] Specifically, a through air inlet 26 is provided on the surface of the tank 21 of the airflow classification mechanism 2, and the air inlet 26 is inclined. It is connected to an external air supply device through the air inlet 26, so that the gas can move spirally upward inside the tank 21. Since the top and inside of the tank 21 are respectively equipped with a reciprocating assembly 24 and a filter assembly 25, the reciprocating assembly 24 and the filter assembly 25 can be used to disperse coarse molybdenum powder and fine molybdenum powder, while the gas is used to push the molybdenum powder through the filter assembly 25.

[0021] See attached document Figure 3 , Figure 4 and Figure 5 More specifically, the filter assembly 25 includes a filter frame 251 that is slidably mounted on the outside of the cylinder 22, and the bottom of the filter frame 251 is fixedly mounted to the bracket 254 via a connecting rod 253.

[0022] According to the above structure, the top of the filter frame 251 abuts against the spring member 252, and the spring member 252 can push the filter frame 251 to reciprocate vertically through the reciprocating assembly 24. The filter frame 251 can separate coarse molybdenum powder and fine molybdenum powder. At the same time, the filter frame 251 is composed of an annular filter frame and an annular filter screen, and the connecting rod 253 is fixedly connected to the annular filter frame, and the annular filter frame is slidably installed on the outside of the cylinder 22. It should be noted that the bottom of the connecting rod 253 slides vertically with the bracket 254 and is installed to rotate along the Y-axis. Therefore, the reciprocating component 24 can drive the filter component 25 to move the filter screen 251 vertically back and forth, thereby avoiding the accumulation of molybdenum powder on the surface of the filter screen 251 and causing blockage.

[0023] Please refer to the appendix again. Figure 4 and Figure 5 It is worth noting that the reciprocating assembly 24 includes a drive assembly 241 fixedly installed inside the mounting bracket 23. By activating the drive assembly 241, the linkage 242 can be driven to operate, and the rotating shaft 243 can be driven to reciprocate vertically inside the motor 244 and the cylinder 22.

[0024] Furthermore, since the rotating shaft 243 is driven by the motor 244, and the bottom of the rotating shaft 243 is fixedly installed with the dispersing disc 245, the motor 244 can be started to drive the dispersing disc 245 to rotate at high speed through the rotating shaft 243. Since the cylinder 22 has a feed port on one side, the molybdenum powder that enters the tank 21 through the cylinder 22 can be dispersed by the high-speed rotating dispersing disc 245.

[0025] Furthermore, due to the vertical reciprocating motion of the rotating shaft 243, the rotating shaft 243 can drive the filter component 25 to rotate while also driving it to reciprocate vertically, thereby further improving the dispersion efficiency of molybdenum powder and thus improving the working efficiency of multi-stage airflow classification of molybdenum powder.

[0026] The working principle of this utility model is as follows: The starting motor 244 drives the rotating shaft 243 and the dispersing disc 245 to rotate at high speed. Simultaneously, the starting drive assembly 241 operates at a set speed, and the linkage 242 drives the rotating shaft 243 to reciprocate vertically. The rotating shaft 243, in turn, drives the dispersing disc 245 to move synchronously. Since the bottom of the rotating shaft 243 is inserted into the connecting rod 253, when the rotating shaft 243 moves vertically, the connecting rod 253 drives the filter screen frame 251 to move synchronously, and this is achieved with the cooperation of the spring 252. The springing motion of the filter frame 251 sends molybdenum powder through the cylinder 22 into the interior of the tank 21. The reciprocating motion and rotation of the connecting rod 253 achieve efficient separation of coarse and fine molybdenum powder. As external gas enters the interior of the tank 21 through the air inlet 26 and spirals upward, the fine molybdenum powder passes through the filter assembly 25 and enters another set of airflow classification mechanisms 2. The coarse molybdenum powder enters the bottom of the tank 21 under its own weight. Through the linkage of the two sets of airflow classification mechanisms 2 and a set of dust filters 3, multi-stage airflow classification of molybdenum powder can be achieved.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A multi-stage air classification apparatus for molybdenum powder, characterized by, include: Rack (1); An airflow classification mechanism (2) and a dust filter (3) are fixedly installed on the top of the frame (1). The airflow classification mechanism (2) includes a mounting bracket (23) fixedly installed on the top of the tank (21). A reciprocating component (24) is fixedly installed at the bottom of the mounting bracket (23). A cylinder (22) is provided at the bottom of the reciprocating component (24). A filter component (25) is provided at the bottom of the reciprocating component (24). The reciprocating component (24) and the filter component (25) are used to disperse molybdenum powder.

2. A multi-stage pneumatic classification apparatus for molybdenum powder according to claim 1, characterized in that: The airflow classification mechanism (2) is provided in two sets, and the two sets of airflow classification mechanisms (2) are connected by a pipe. One set of airflow classification mechanisms (2) is connected to the dust filter (3), and the bottom of the dust filter (3) is connected to the fan.

3. The multi-stage pneumatic classification apparatus for molybdenum powder according to claim 1, characterized in that: The surface of the tank (21) is provided with a through air inlet (26), and the air inlet (26) is inclined so that the gas moves spirally upward inside the tank (21) and is used to push the molybdenum powder through the filter assembly (25).

4. The multi-stage pneumatic classification apparatus for molybdenum powder according to claim 1, characterized in that: The filter assembly (25) includes a filter frame (251) that is slidably installed on the outside of the cylinder (22), and the bottom of the filter frame (251) is fixedly installed on the bracket (254) by a connecting rod (253).

5. A multi-stage air flow classification apparatus for molybdenum powder according to claim 4, characterized in that: The top of the filter frame (251) is abutted by a spring (252), which is used by a reciprocating assembly (24) to push the filter frame (251) to move vertically back and forth. The filter frame (251) is composed of an annular filter frame and an annular filter screen.

6. A multi-stage air flow classification apparatus for molybdenum powder according to claim 5, characterized in that: The reciprocating component (24) includes a drive component (241) fixedly installed inside the mounting bracket (23). The drive component (241) is used to drive the linkage (242) to drive the rotating shaft (243) to reciprocate vertically.

7. A multi-stage air flow classification apparatus for molybdenum powder according to claim 6, characterized in that: The rotating shaft (243) is driven by the motor (244) so ​​that the rotating shaft (243) drives the dispersing disc (245) to rotate. The bottom of the rotating shaft (243) is rotatably installed with the filter assembly (25) and pushes the filter assembly (25) to move vertically back and forth inside the tank (21).

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