Anti-blocking double-cone drying machine for dehydrating copper powder

Abstract

The utility model relates to the technical field of copper powder metallurgy, in particular to an anti-blocking double-cone drying machine for dehydrating copper powder, which comprises a machine body, a driving device is arranged at the top of the machine body, a double-cone cylinder is rotatably mounted at the output end of the driving device, and a connecting pipe penetrates through and is rotatably mounted on the outer wall, close to the driving device, of the double-cone cylinder. The connecting pipe is fixedly installed at the top of the machine body, the vacuum cover is fixedly installed at the end, close to the inner wall of the double-cone cylinder, of the connecting pipe, and the vacuum pipe is arranged at the end, away from the double-cone cylinder, of the connecting pipe. Copper powder is guided to slide down towards the bottom of the double-cone cylinder along the smooth plate during initial feeding, and powder blocks with humidity are prevented from directly impacting or adhering to the surface of a nanoscale filter screen of the filter cover, so that the problem of early blockage caused by rapid hardening of wet powder at pores of the filter screen due to surface viscosity is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of copper powder metallurgy technology, specifically to an anti-clogging double cone dryer for copper powder dehydration. Background Technology

[0002] With the rapid development of copper powder metallurgy technology towards high-precision and ultrafine powder preparation, the market has placed higher demands on the vacuum filtration performance and production continuity of drying equipment. The double-cone dryer, with its unique material tumbling characteristics in its conical cavity and high vacuum negative pressure drying efficiency, has been widely used in the dehydration process of nanoscale copper powder.

[0003] Most double cone dryers suffer from the following problems: 1) When copper powder is poured in, it directly acts on the top of the vacuum chamber, and the undried copper powder, being sticky, adheres directly to the filter screen surface; 2) During the rotation of the double cone dryer, the powder inside flies around and re-adheres to the filter screen surface, clogging it and affecting subsequent exhaust gas extraction. Therefore, we propose an anti-clogging double cone dryer for copper powder dehydration. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging double cone dryer for copper powder dehydration, which solves the problems of powder directly acting on the filter screen and the filter screen becoming clogged when it is poured in.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A clog-resistant double cone dryer for copper powder dehydration includes a machine body. A drive device is installed on the top of the machine body. A double cone is rotatably mounted on the output end of the drive device. A connecting pipe is rotatably mounted through the double cone near the outer wall of the drive device and is fixedly mounted on the top of the machine body. A vacuum hood is fixedly mounted on one end of the connecting pipe near the inner wall of the double cone. A vacuum tube is installed on the other end of the connecting pipe away from the double cone. A pressure gauge is installed on the outer wall of the vacuum tube. A striking device is provided on the inner wall of the vacuum hood. The striking device includes a filter cover, which is fixedly mounted on the outer wall of the vacuum hood. A baffle is fixedly mounted on the top of the filter cover, and the top of the baffle is a smooth surface.

[0007] Preferably, the striking device further includes a fixed block, a sliding rod, a first spring, an arc-shaped abutment block, a fixed frame, a sliding long rod, a second spring, a sliding frame, a rotating rod, a contact wheel, and a striking rod. The fixed block is fixedly installed on the outer wall of the connecting pipe near the inner wall of the double cone cylinder, and a sliding cavity is provided inside the fixed block. The sliding rod is slidably installed on the inner wall of the sliding cavity of the fixed block. The first spring is disposed between the fixed block and the sliding rod. The arc-shaped abutment block is fixedly installed on the inner wall of the double cone cylinder. The fixed frame is fixedly installed on the bottom inner wall of the vacuum hood. The sliding long rod is slidably installed on the inner wall of the fixed frame. The second spring is disposed between the sliding long rod and the fixed frame. The sliding frame is fixedly installed on the top of the sliding long rod, and a rotating groove is provided on the top of the sliding frame. The rotating rod is rotatably installed on the inner wall of the rotating groove of the sliding frame. The contact wheel is fixedly installed on the outer wall of the rotating rod, and the striking rod is fixedly installed on the outer wall of the contact wheel.

[0008] Preferably, the end of the slide rod near the inner wall of the double cone cylinder is arc-shaped, and the other end of the slide rod is cone-shaped. There are several arc-shaped contact blocks, which are evenly and equidistantly arranged in a circle with the outer wall of the connecting pipe as the center. The arc-shaped contact blocks are located on the movement trajectory of the arc surface of the slide rod. The bottom end of the sliding rod is arc-shaped, and the arc surface of the sliding rod is located on the movement trajectory of the cone surface of the slide rod. The sliding frame is slidably installed on the inner wall of the vacuum chamber. The contact wheel contacts the inner wall of the vacuum chamber. The striking rod is inclined at twenty degrees and is elastic.

[0009] By employing the above technical solution, this utility model provides an anti-clogging double cone dryer for copper powder dehydration. It possesses at least the following beneficial effects:

[0010] (1) By setting up the baffle, when the copper powder falls on the top of the baffle, it slides down through the smooth surface of the top of the baffle. When the copper powder is initially fed, it is guided to slide down along the smooth plate surface to the bottom of the double cone cylinder, avoiding the direct impact or adhesion of the wet powder clumps to the nanoscale filter screen surface of the filter cover. This effectively prevents the early clogging problem caused by the rapid caking of wet powder in the filter screen pores due to surface stickiness.

[0011] (2) By setting the striking rod, the present invention effectively peels off the dry copper powder attached to the outer wall of the nanoscale filter, preventing the ultrafine powder from forming a dense layer in the filter pores. While maintaining the vacuum filtration efficiency, it avoids the fluctuation of vacuum degree caused by the decrease of filter permeability, thereby ensuring the dynamic balance of material and airflow during continuous drying. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0013] Figure 1This is a front view schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 3 This is a cross-sectional schematic diagram of the striking device in Embodiment 1;

[0016] Figure 4 This is an enlarged schematic diagram of point A in this embodiment 2.

[0017] In the diagram: 1. Body; 11. Drive unit; 12. Double cone; 13. Connecting pipe; 1301. Vacuum hood; 14. Vacuum tube; 2. Striking device; 21. Filter cover; 22. Baffle; 23. Fixing block; 24. Sliding rod; 25. Spring 1; 26. Arc-shaped contact block; 27. Fixing frame; 28. Sliding rod; 29. ​​Spring 2; 210. Sliding frame; 211. Rotating rod; 212. Contact wheel; 213. Striking rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0019] A clog-resistant double cone dryer for copper powder dehydration, such as Figures 1-3 As shown, the device includes a body 1, a drive unit 11 is provided on the top of the body 1, a double cone 12 is rotatably mounted on the output end of the drive unit 11, a connecting pipe 13 is rotatably mounted through the double cone 12 near the outer wall of the drive unit 11, and the connecting pipe 13 is fixedly mounted on the top of the body 1, a vacuum shroud 1301 is fixedly mounted on one end of the connecting pipe 13 near the inner wall of the double cone 12, a vacuum tube 14 is provided on the other end of the connecting pipe 13 away from the double cone 12, a pressure gauge is installed on the outer wall of the vacuum tube 14, and a striking device 2 is provided on the inner wall of the vacuum shroud 1301. The striking device 2 includes a filter shroud 21, the filter shroud 21 is fixedly mounted on the outer wall of the vacuum shroud 1301, and a baffle 22 is fixedly mounted on the top of the filter shroud 21. The top of the baffle 22 is a smooth surface.

[0020] In use, the anti-clogging double cone dryer for copper powder dehydration of this utility model involves adjusting the rotation parameters of the double cone 12, turning on the drive device 11, and having the output end of the drive device 11 drive the double cone 12 to rotate. The external vacuum pump is then turned on, and the pressure gauge connected to the vacuum pump and vacuum tube 14 is checked. After adjustment, the double cone 12 is opened, and copper powder is poured into it. The copper powder falls onto the top of the baffle 22 and then slides down the smooth surface of the top of the baffle 22. Because of the baffle 22, the copper powder is guided to slide down the smooth surface of the baffle 22 to the bottom of the double cone 12 during initial feeding, preventing damp powder clumps from directly impacting or adhering to the nanoscale filter screen surface of the filter cover 21. This effectively prevents early clogging caused by the rapid agglomeration of wet powder in the filter screen pores due to surface stickiness. Example

[0021] This embodiment, based on embodiment 1, specifically includes the following:

[0022] like Figure 4 As shown, the striking device 2 also includes a fixed block 23, a sliding rod 24, a first spring 25, an arc-shaped contact block 26, a fixed frame 27, a sliding rod 28, a second spring 29, a sliding frame 210, a rotating rod 211, a contact wheel 212, and a striking rod 213. The fixed block 23 is fixedly installed on the outer wall of the connecting pipe 13 near the inner wall of the double cone cylinder 12, and a sliding cavity is provided inside the fixed block 23. The sliding rod 24 is slidably installed on the inner wall of the sliding cavity of the fixed block 23. The first spring 25 is disposed between the fixed block 23 and the sliding rod 24. The arc-shaped contact block 26 is fixedly installed... The inner wall of the double cone cylinder 12 is fitted with a fixed bracket 27, which is fixedly installed on the inner wall of the bottom end of the vacuum hood 1301. The sliding rod 28 is slidably installed on the inner wall of the fixed bracket 27. The second spring 29 is set between the sliding rod 28 and the fixed bracket 27. The sliding frame 210 is fixedly installed on the top of the sliding rod 28, and the top of the sliding frame 210 is provided with a rotating groove. The rotating rod 211 is rotatably installed on the inner wall of the rotating groove of the sliding frame 210. The contact wheel 212 is fixedly installed on the outer wall of the rotating rod 211, and the striking rod 213 is fixedly installed on the outer wall of the contact wheel 212.

[0023] The slide bar 24 is arc-shaped at one end near the inner wall of the double cone cylinder 12, and the other end of the slide bar 24 is cone-shaped. There are several arc-shaped contact blocks 26, which are evenly and equidistantly arranged in a circle with the outer wall of the connecting pipe 13 as the center. The arc-shaped contact blocks 26 are located on the movement trajectory of the arc surface of the slide bar 24. The bottom end of the sliding rod 28 is arc-shaped, and the arc surface of the sliding rod 28 is located on the movement trajectory of the cone surface of the slide bar 24. The sliding frame 210 is slidably installed on the inner wall of the vacuum chamber 1301. The contact wheel 212 contacts the inner wall of the vacuum chamber 1301. The striking rod 213 is tilted at twenty degrees and is elastic.

[0024] In the operation of this utility model's anti-clogging double cone dryer for copper powder dehydration, when the double cone cylinder 12 is working, copper powder flies inside the cylinder and adheres to the outer wall of the filter cover 21. When the double cone cylinder 12 rotates, it drives the arc-shaped contact block 26 to rotate. The arc-shaped contact block 26 abuts against the arc surface of the slide rod 24, causing the slide rod 24 to slide towards the vacuum cover 1301. After the arc surface of the slide rod 24 passes the arc-shaped contact block 26, the slide rod 24 is reset by the spring 25. The reciprocating sliding cone surface of the slide rod 24 simultaneously abuts against the bottom arc surface of the sliding rod 28. The sliding rod 28 slides upward on the inner wall of the fixed frame 27. The sliding rod 28 drives the sliding frame 210 to slide upward on the inner wall of the vacuum cover 1301. The sliding frame 210 drives the rotating rod 211 to move upward. 11 drives the contact wheel 212 to move upward. After the contact wheel 212 contacts the inner wall of the vacuum hood 1301, the contact wheel 212 drives the striking rod 213 to rotate towards the inner wall of the vacuum hood 1301. The inclined surface and elastic setting of the striking rod 213 will strike the inner wall of the vacuum hood 1301. The vibration caused by the striking will be transmitted to the filter cover 21, thereby causing the copper powder attached to the filter cover 21 to be shaken off. The setting of the second spring 29 can reset the sliding rod 28. Through the setting of the striking rod 213, the dry copper powder attached to the outer wall of the nano-scale filter screen is effectively peeled off, preventing the ultrafine powder from forming a dense layer in the filter screen pores. While maintaining the vacuum filtration efficiency, it avoids the fluctuation of vacuum degree caused by the decrease of filter screen permeability, thereby ensuring the dynamic balance of material and airflow during continuous drying.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant double cone dryer for copper powder dehydration, comprising a machine body (1), characterized in that: A drive device (11) is provided on the top of the body (1). A double cone (12) is rotatably installed at the output end of the drive device (11). A connecting pipe (13) is rotatably installed through the outer wall of the double cone (12) near the drive device (11). The connecting pipe (13) is fixedly installed on the top of the body (1). A vacuum hood (1301) is fixedly installed at one end of the connecting pipe (13) near the inner wall of the double cone (12). A vacuum tube (14) is provided at the other end of the connecting pipe (13) away from the double cone (12). A pressure gauge is installed on the outer wall of the vacuum tube (14). A striking device (2) is provided on the inner wall of the vacuum hood (1301). The striking device (2) includes a filter cover (21). The filter cover (21) is fixedly installed on the outer wall of the vacuum hood (1301). A baffle (22) is fixedly installed on the top of the filter cover (21). The top of the baffle (22) is a smooth surface.

2. The anti-clogging double cone dryer for copper powder dehydration according to claim 1, characterized in that: The striking device (2) further includes a fixed block (23), a sliding rod (24), a first spring (25), an arc-shaped contact block (26), a fixed frame (27), a sliding rod (28), a second spring (29), a sliding frame (210), a rotating rod (211), a contact wheel (212), and a striking rod (213). The fixed block (23) is fixedly installed on the outer wall of the connecting pipe (13) near the inner wall of the double cone cylinder (12), and a sliding cavity is provided inside the fixed block (23). The sliding rod (24) is slidably installed on the inner wall of the sliding cavity of the fixed block (23). The first spring (25) is arranged between the fixed block (23) and the sliding rod (24). The arc-shaped contact block (26) is fixed. The fixed frame (27) is fixedly installed on the inner wall of the bottom end of the vacuum hood (1301), the sliding rod (28) is slidably installed on the inner wall of the fixed frame (27), the second spring (29) is set between the sliding rod (28) and the fixed frame (27), the sliding frame (210) is fixedly installed on the top of the sliding rod (28), and the top of the sliding frame (210) is provided with a rotating groove, the rotating rod (211) is rotatably installed on the inner wall of the rotating groove of the sliding frame (210), the contact wheel (212) is fixedly installed on the outer wall of the rotating rod (211), and the striking rod (213) is fixedly installed on the outer wall of the contact wheel (212).

3. The anti-clogging double cone dryer for copper powder dehydration according to claim 2, characterized in that: The sliding rod (24) is arc-shaped at one end near the inner wall of the double cone cylinder (12), and the other end of the sliding rod (24) is cone-shaped. There are several arc-shaped contact blocks (26), and the several arc-shaped contact blocks (26) are arranged in a circle with the outer wall of the connecting pipe (13) as the center. The arc-shaped contact blocks (26) are located on the movement trajectory of the arc surface of the sliding rod (24). The bottom end of the sliding rod (28) is arc-shaped, and the arc surface of the sliding rod (28) is located on the movement trajectory of the cone surface of the sliding rod (24). The sliding frame (210) is slidably installed on the inner wall of the vacuum hood (1301). The contact wheel (212) is in contact with the inner wall of the vacuum hood (1301). The striking rod (213) is tilted at twenty degrees and is elastic.

Images