Metal powder solid-liquid separation apparatus

Abstract

The utility model relates to solid -liquid separation technical field discloses a kind of metal powder solid-liquid separation equipment, including support frame, rotating connection on the support frame magnetic cylinder, fixed in the support frame sorting mechanism, and fixedly connected on the support frame unloading mechanism. The unloading mechanism includes scraper and adaptive component;The adaptive component includes telescopic link fixed in support frame, air cylinder, sliding block, spring and inner rod;The scraper is fixed to the telescopic link, and the spring is arranged in the telescopic link and abuts between the inner rod and the sliding block. The utility model effectively scatters metal powder agglomeration by stirring component, improves separation efficiency;Meanwhile by adaptive component, scraper can automatically compensate abrasion and adjust close force, ensure the thoroughness of unloading and long-term stable operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of solid-liquid separation technology, and in particular to a solid-liquid separation device for metal powder. Background Technology

[0002] In industrial processes such as metal powder production, hydrometallurgy, or powder recycling, solid-liquid separation of slurries containing metal powder is often required. Magnetic separation is a commonly used technique for achieving this separation. It typically uses a magnetic field to adsorb magnetic metal powder from the slurry, and then collects the adsorbed powder through a subsequent mechanism.

[0003] Traditional magnetic separators typically consist of a rotating magnetic drum with an internal magnetic system to generate a magnetic field. As the slurry flows through the drum, metal powder is adsorbed onto its outer surface and rotates with the drum to the discharge area.

[0004] To collect the metal powder adsorbed on the surface of the magnetic cylinder, a discharge mechanism is commonly installed on the equipment. One common discharge mechanism is a fixed scraper, with the blade edge of the scraper closely attached to the surface of the magnetic cylinder. When the magnetic cylinder rotates, the scraper scrapes the adsorbed metal powder off the surface of the cylinder.

[0005] However, in this structure, the blade edge of the scraper maintains rigid contact and friction with the surface of the rotating magnetic cylinder for a long period of time, which inevitably leads to rapid wear of the scraper. As the wear intensifies, a gap will gradually form between the scraper blade edge and the surface of the magnetic cylinder.

[0006] When this gap forms, the scraper will not be able to completely remove the metal powder adsorbed on the surface of the magnetic cylinder, resulting in a large amount of metal powder remaining and being carried back into the slurry. This not only seriously reduces the material recovery rate and separation efficiency, but the residual powder will also aggravate the wear of the magnetic cylinder.

[0007] To address the issue of incomplete unloading, existing technologies rely on periodic shutdowns where manual adjustment of the scraper-magnetic cylinder spacing or replacement of the scraper is required. This method is not only cumbersome and increases maintenance costs, but frequent shutdowns also severely impact the continuity and stability of the entire production line. Therefore, this invention proposes a metal powder solid-liquid separation device to overcome the shortcomings of existing technologies. Summary of the Invention

[0008] To overcome the above shortcomings, this utility model provides a metal powder solid-liquid separation device, which aims to improve the problem in some existing metal powder solid-liquid separation devices where the unloading scraper is prone to gaps with the magnetic cylinder surface after long-term use and wear, resulting in incomplete unloading of metal powder.

[0009] This utility model provides a metal powder solid-liquid separation device, including: a support frame, a magnetic cylinder rotatably connected to the support frame, and a sorting mechanism fixed to the support frame; it also includes a discharge mechanism fixedly connected to the support frame.

[0010] The unloading mechanism includes a scraper and an adaptive component for driving the scraper to elastically conform to the outer surface of the magnetic cylinder.

[0011] The adaptive component includes a telescopic rod with one end fixedly connected to the scraper, a cylinder fixed inside the telescopic rod, and a slider slidably connected inside the telescopic rod.

[0012] The telescopic rod has an inner rod inside; the adaptive component also includes a spring passing through the telescopic rod, with the two ends of the spring abutting between the inner rod and the slider respectively; the output end of the cylinder is connected to the slider to drive the slider to move and change the compression of the spring.

[0013] Preferably, the unloading mechanism further includes a drive motor, a drive wheel, a driven wheel, a synchronous belt, and a brush roller; the output shaft of the drive motor drives the magnetic cylinder to rotate and is coaxially connected to the drive wheel, the drive wheel is connected to the driven wheel via the synchronous belt, and the driven wheel drives the brush roller to rotate; the bristles of the brush roller abut against the outer surface of the magnetic cylinder, and its position is located downstream of the scraper in the scraping direction.

[0014] Preferably, the sorting mechanism includes a sorting chamber and a stirring assembly disposed within the sorting chamber; the stirring assembly includes a stirring motor, a connecting rod connected to the output end of the stirring motor, and a plurality of impellers fixedly connected to the connecting rod; the stirring motor drives the connecting rod and impellers to rotate, thereby stirring the slurry in the sorting chamber.

[0015] Preferably, the upper part of the sorting mechanism is provided with a feed trough that connects to the sorting chamber, and the bottom of the sorting chamber is connected with a wastewater pipe for discharging the separated liquid.

[0016] Preferably, a central shaft is fixedly installed inside the magnetic cylinder, and multiple magnets for generating a magnetic field are fixed along the axial direction of the central shaft.

[0017] Preferably, the equipment also includes a discharge mechanism, which includes a hopper located directly below the scraper and the brush roller.

[0018] Preferably, the discharge mechanism further includes a discharge pipe connected to the bottom of the collection hopper, the discharge pipe being used to discharge the collected metal powder.

[0019] Preferably, the rotation axis of the connecting rod is parallel to the rotation axis of the magnetic cylinder, and multiple impellers are spaced apart along the length of the connecting rod.

[0020] This utility model has the following beneficial effects: 1. This utility model, by setting up a sorting mechanism and installing a stirring assembly consisting of a stirring motor, connecting rod and impeller inside the sorting chamber, forcibly stirs the slurry before magnetic separation, which solves the problem in the prior art that metal powder is prone to agglomeration in the slurry, resulting in insufficient contact with the magnetic field and low separation efficiency. It achieves the technical effects of effectively breaking up powder agglomerates, increasing the contact area between metal powder and the magnetic field, and significantly improving magnetic adsorption efficiency and separation thoroughness.

[0021] This invention solves the problems in the prior art where scraper wear easily creates gaps with the magnetic cylinder surface, leading to incomplete unloading, and where the adhesion force is fixed and difficult to adjust. It achieves the technical effects of automatically compensating for scraper wear, ensuring that the scraper always elastically adheres to the magnetic cylinder surface, and flexibly adjusting the adhesion force to adapt to different materials. This ensures clean unloading, extends the maintenance cycle, and improves the applicability of the equipment.

[0022] This invention solves the problem of trace powder residue that still exists when using the scraper alone by adding a brush roller driven by a drive motor through a synchronous belt to the unloading mechanism and positioning the brush roller downstream of the scraper unloading direction. It achieves the technical effect of using the dual unloading cooperation of the scraper and the brush roller to perform secondary cleaning of the magnetic cylinder surface, further improving the unloading cleanliness and ensuring the cleanliness of the magnetic cylinder surface. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a metal powder solid-liquid separation device proposed in this utility model; Figure 2 This is a schematic diagram of the sorting chamber of a metal powder solid-liquid separation device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the telescopic rod of a metal powder solid-liquid separation device proposed in this utility model; Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0024] Legend: 1. Magnetic cylinder; 2. Unloading mechanism; 21. Drive motor; 22. Drive wheel; 23. Synchronous belt; 24. Driven wheel; 25. Brush roller; 26. Adaptive component; 261. Telescopic rod; 262. Cylinder; 263. Slider; 264. Spring; 27. Scraper; 3. Sorting mechanism; 31. Central shaft; 32. Magnet; 33. Feed trough; 34. Sorting chamber; 35. Stirring motor; 36. Connecting rod; 37. Impeller; 4. Discharge mechanism; 41. Support frame; 42. Wastewater pipe; 43. Collection hopper; 44. Discharge pipe. Detailed Implementation

[0025] 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.

[0026] Example: Reference Figures 1 to 4 This utility model provides a metal powder solid-liquid separation device, which aims to solve the problems in the prior art where metal powder is prone to agglomeration in slurry, resulting in low separation efficiency, and where gaps are generated after the unloading plate is worn, causing incomplete unloading and requiring frequent manual adjustment.

[0027] like Figure 1 As shown, the system includes a support frame 41, a magnetic cylinder 1 rotatably connected to the support frame 41, a sorting mechanism 3 fixed to the support frame 41, and a discharge mechanism 2 fixedly connected to the support frame 41. The support frame 41 provides the installation foundation and stable support for the entire equipment. Part of the magnetic cylinder 1 extends into and is partially covered by the sorting mechanism 3. The discharge mechanism 2 is located on the other side of the magnetic cylinder 1 and is used to scrape off the metal powder adsorbed on the outer surface of the magnetic cylinder 1. The discharge mechanism 2 is the main part that realizes the core function of this solution. It includes a scraper 27 and an adaptive component 26 for driving the scraper 27 to elastically conform to the outer surface of the magnetic cylinder 1. Figure 3 and Figure 4 As shown, the adaptive component 26 specifically includes a telescopic rod 261 fixedly connected to the scraper 27 at one end, a cylinder 262 fixed inside the telescopic rod 261, and a slider 263 slidably connected to the cylinder 262; an inner rod is provided inside the telescopic rod 261; the adaptive component 26 also includes a spring 264 passing through the telescopic rod 261, with both ends of the spring 264 abutting between the inner rod and the slider 263 respectively, thereby providing a continuous elastic tension to the telescopic rod 261 and the scraper 27; the output end of the cylinder 262 is connected to the slider 263, and when the cylinder 262 is working, it can drive the slider 263 to move along the axial direction of the telescopic rod 261, thereby changing the initial compression of the spring 264 to adjust the preload applied to the scraper 27.

[0028] Reference Figure 1 and Figure 2The unloading mechanism 2 also includes a drive motor 21, a drive wheel 22, a driven wheel 24, a timing belt 23, and a brush roller 25. The drive motor 21 serves as a power source, and its output shaft drives the magnetic cylinder 1 to rotate while coaxially connecting to the drive wheel 22. The drive wheel 22 is connected to the driven wheel 24 via the timing belt 23. The driven wheel 24 is fixedly connected to the shaft end of the brush roller 25 to drive the brush roller 25 to rotate. In the assembled state, the brush roller 25 is rotated so that its bristles always abut against the outer surface of the magnetic cylinder 1, and the installation position of the brush roller 25 is in the scraping position. Plate 27 is downstream of the magnetic cylinder 1 in the direction of rotation; the sorting mechanism 3 includes a sorting chamber 34 and a stirring assembly installed inside the sorting chamber 34. The stirring assembly includes a stirring motor 35, a connecting rod 36 connected to the output end of the stirring motor 35, and multiple impellers 37 fixedly connected to the connecting rod 36; the stirring motor 35 drives the connecting rod 36 and the impellers 37 to rotate synchronously to stir the slurry entering the sorting chamber 34; the rotation axis of the connecting rod 36 is parallel to the rotation axis of the magnetic cylinder 1, and the multiple impellers 37 are arranged at intervals along the length of the connecting rod 36.

[0029] Reference Figure 2 The upper part of the sorting mechanism 3 is provided with a feed trough 33 that connects to the sorting chamber 34, and the bottom of the sorting chamber 34 is connected to a wastewater pipe 42 for discharging the separated liquid; a central shaft 31 is fixedly provided inside the magnetic cylinder 1, and multiple magnets 32 for generating a magnetic field are fixed along its axial direction on the outer periphery of the central shaft 31. like Figure 1 As shown, the equipment also includes a discharge mechanism 4, which includes a collection hopper 43 located directly below the scraper 27 and the brush roller 25. The bottom of the collection hopper 43 is connected to a discharge pipe 44 for discharging the collected metal powder from the equipment.

[0030] The implementation principle of this application embodiment is as follows: When the equipment is running, the slurry containing metal powder enters the sorting chamber 34 of the sorting mechanism 3 through the feed trough 33. At this time, the stirring motor 35 in the sorting chamber 34 starts and drives the connecting rod 36 to rotate. The connecting rod 36 drives multiple impellers 37 fixed on it to rotate synchronously. The impellers 37 form multi-zone stirring in the sorting chamber 34, forcibly dispersing the agglomerated metal powder in the slurry and making it evenly dispersed. At the same time, the magnet 32 ​​fixed on the central shaft 31 inside the magnetic cylinder 1 generates a magnetic field. The magnetic field penetrates the magnetic cylinder 1 and acts on the slurry in the sorting chamber 34. When the evenly dispersed metal powder flows with the slurry through the outer surface of the magnetic cylinder 1, it is magnetically attracted to the outer wall of the magnetic cylinder 1. The separated liquid is discharged from the wastewater pipe 42 at the bottom of the sorting chamber 34.

[0031] Subsequently, the drive motor 21 starts, driving the magnetic cylinder 1 to rotate, causing the cylinder wall with adsorbed metal powder to leave the sorting chamber 34. Simultaneously, the drive motor 21 drives the drive wheel 22 to rotate via its output shaft. The drive wheel 22 drives the driven wheel 24 via the synchronous belt 23, and the driven wheel 24 drives the brush roller 25 to rotate synchronously. When the magnetic cylinder 1 rotates to the area of ​​the unloading mechanism 2, it first contacts the scraper 27. Under the action of the adaptive component 26, the scraper 27 tightly adheres to the surface of the magnetic cylinder 1. The spring 264 in the adaptive component 26 passes through the telescopic rod 261, with both ends of the spring 264 abutting against the telescopic rod 261. A continuous elastic thrust is provided between the inner rod of 61 and the slider 263. When the scraper 27 wears, the spring 264 automatically retracts to pull the telescopic rod 261 to compensate for the gap. When the adhesion force needs to be adjusted, the cylinder 262 fixed inside the telescopic rod 261 is activated. The cylinder 262 drives the slider 263 to move, changing the compression of the spring 264, thereby adjusting the preload. The rotating brush roller 25 cleans the surface of the magnetic cylinder 1, scraping off most of the metal powder from the surface of the magnetic cylinder 1. Then, the surface of the magnetic cylinder 1 continues to rotate to the scraper 27, brushing away the residual powder that the brush roller 25 failed to scrape off.

[0032] The metal powder unloaded by the scraper 27 and the brush roller 25 falls into the collection hopper 43 of the discharge mechanism 4 below. The collected powder is discharged through the discharge pipe 44 at the bottom of the collection hopper 43. The entire solid-liquid separation process is completed under the stable support of the support frame 41.

Claims

1. A metal powder solid-liquid separation device, comprising a support frame (41), a magnetic cylinder (1) rotatably connected to the support frame (41), and a sorting mechanism (3) partially covering the magnetic cylinder (1) and fixed to the support frame (41). Its features are, The device also includes a discharge mechanism (2) fixedly connected to the support frame (41). The discharge mechanism (2) includes a scraper (27) and an adaptive component (26) for driving the scraper (27) to elastically conform to the outer surface of the magnetic cylinder (1). The adaptive component (26) includes a telescopic rod (261) fixedly connected to the scraper (27) at one end, a cylinder (262) fixed inside the telescopic rod (261), and a slider (263) slidably connected inside the telescopic rod (261). The telescopic rod (261) is provided with an inner rod. The adaptive component (26) also includes a spring (264) passing through the telescopic rod (261). The two ends of the spring (264) abut against the inner rod and the slider (263) respectively. The output end of the cylinder (262) is connected to the slider (263) to drive the slider (263) to move and change the compression of the spring (264).

2. The metal powder solid-liquid separation device according to claim 1, characterized in that, The unloading mechanism (2) also includes a drive motor (21), a drive wheel (22), a driven wheel (24), a timing belt (23), and a brush roller (25). The output shaft of the drive motor (21) drives the magnetic cylinder (1) to rotate and is coaxially connected to the drive wheel (22). The drive wheel (22) is connected to the driven wheel (24) via the timing belt (23). The driven wheel (24) drives the brush roller (25) to rotate. The bristles of the brush roller (25) abut against the outer surface of the magnetic cylinder (1) and are positioned downstream of the scraping direction of the scraper (27).

3. The metal powder solid-liquid separation device according to claim 1, characterized in that, The sorting mechanism (3) includes a sorting chamber (34) and a stirring assembly disposed in the sorting chamber (34). The stirring assembly includes a stirring motor (35), a connecting rod (36) connected to the output end of the stirring motor (35), and a plurality of impellers (37) fixedly connected to the connecting rod (36). The stirring motor (35) drives the connecting rod (36) and the impellers (37) to rotate to stir the slurry in the sorting chamber (34).

4. The metal powder solid-liquid separation device according to claim 3, characterized in that, The upper part of the sorting mechanism (3) is provided with a feed trough (33) that connects to the sorting chamber (34), and the bottom of the sorting chamber (34) is connected to a wastewater pipe (42) for discharging the separated liquid.

5. The metal powder solid-liquid separation device according to claim 1, characterized in that, The magnetic cylinder (1) has a central shaft (31) fixed inside, and a plurality of magnets (32) for generating a magnetic field are fixed along the axial direction of the central shaft (31).

6. The metal powder solid-liquid separation device according to claim 2, characterized in that, The device also includes a discharge mechanism (4), which includes a hopper (43) located directly below the scraper (27) and the brush roller (25).

7. The metal powder solid-liquid separation device according to claim 6, characterized in that, The discharge mechanism (4) also includes a discharge pipe (44) connected to the bottom of the collection hopper (43), which is used to discharge the collected metal powder.

8. The metal powder solid-liquid separation device according to claim 3, characterized in that, The rotation axis of the connecting rod (36) is parallel to the rotation axis of the magnetic cylinder (1), and multiple impellers (37) are spaced apart along the length of the connecting rod (36) to form multi-zone stirring in the sorting chamber (34).

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