Leaching and filtering device for neodymium-iron-boron optimal solution inlet and outlet slag

Abstract

The utility model discloses a neodymium iron boron optimal solution inlet and outlet slag leaching and filtering device which comprises a machine body and further comprises a filtering mechanism, the filtering mechanism is arranged in the machine body, and the filtering mechanism comprises a feeding pipe, a hopper, a discharging pipe, a motor, a filtering cylinder, a fixing cylinder, a material injection and discharging hole and an arc-shaped cover plate. A feeding pipe is installed at the top of the machine body, a hopper for storing neodymium iron boron optimal melting slag is arranged at the top of the feeding pipe, a discharging pipe is arranged at the bottom of the machine body, waste slag can only enter a cavity area between the interior of the filter cylinder and the periphery of the fixed cylinder after entering the filter cylinder, the single-time feeding amount is limited, and meanwhile it is guaranteed that the waste slag is attached to the inner wall of the filter cylinder; and in the centrifugal liquid removal process, the problems of poor liquid removal effect and low efficiency of internal part of waste residues caused by accumulation of the waste residues are effectively avoided, and the liquid removal quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of NdFeB production, in particular to a NdFeB excellent dissolution in and out slag leaching and filtering device. Background Art

[0002] Neodymium magnets, also known as NdFeB magnets, are tetragonal crystals formed by neodymium, iron and boron. NdFeB slag is the waste residue produced after monazite concentrate is decomposed with alkali and leached to obtain rare earth products. The waste residue still contains a large amount of valuable resources such as uranium, thorium and rare earths. Since uranium and thorium are radioactive elements, if the above waste residue is directly discharged into the environment, it will pollute the environment and endanger human health. Moreover, a large amount of rare earths in the waste residue are also wasted. The existing method is mostly to use peracid leaching, and then use a filtration device for solid-liquid separation to obtain a filtrate containing valuable elements such as uranium and thorium. Therefore, in its preparation process, filtration is one of the important production processes.

[0003] The existing NdFeB production filtering device has the following disadvantages when in use: Centrifugal filtration is one of the commonly used filtering methods for filtering NdFeB superior slag waste. When filtering, the existing filtering equipment generally directly puts the waste into the filter cartridge. Due to the space limitation of the filter cartridge, during the centrifugal filtration process, the waste slag deliquescence efficiency near the center of the filter cartridge is low, which easily leads to the problem of incomplete deliquescence. For this reason, we propose a NdFeB superior slag leaching and filtration device. Utility Model Content

[0004] The main purpose of the utility model is to provide a NdFeB leaching and filtering device with excellent dissolution in and out of slag, which can effectively solve the problems in the background technology by limiting the capacity and position of the waste slag inside the filter cartridge through the filtering mechanism arranged inside the machine body, thereby improving the deliquescence efficiency and quality.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A NdFeB superior slag leaching and filtering device comprises a body and a filtering mechanism, wherein the filtering mechanism is arranged inside the body, and the filtering mechanism comprises a feed pipe, a hopper, a discharge pipe, a motor, a filter cartridge, a fixed cylinder, injection and discharge holes and an arc-shaped cover plate, a feed pipe is installed on the top of the body and a hopper for storing NdFeB superior slag is arranged on the top of the feed pipe, a discharge pipe is arranged at the bottom of the body, a filter cartridge located inside the body is installed at the power output end of the motor and the fixed cylinder is fixedly connected inside the filter cartridge, an injection and discharge hole is opened on one side of the surface of the filter cartridge and an arc-shaped cover plate is movably connected to the outer periphery of the filter cartridge near the injection and discharge hole.

[0007] Furthermore, it also includes a control mechanism, and a control mechanism is installed inside the body, and the control mechanism includes a spring B, a docking tube, a slot, a baffle and a control rod. The upper and lower ends of the inner wall of the body are movably connected with the docking tube through the spring B, and the docking tube is respectively sleeved on the outer periphery of the feed pipe and the discharge pipe, and the end of the docking tube is provided with a slot and the inside of the slot is plugged with a baffle, and one end of the baffle surface is fixedly connected to a control rod extending to the outside of the body; during the rotation of the filter cartridge, the spring B makes the docking tube move away from the filter cartridge without affecting the rotation of the filter cartridge. When feeding or discharging is required, the docking tube is moved by the control rod so that its end is attached to the surface of the filter cartridge. At this time, the filter cartridge is controlled to rotate slowly until the side of the docking tube hits the end of the arc cover plate and the arc cover plate is stretched open, so that the end of the docking tube can be docked with the injection and discharge holes, and then the baffle is pulled outward along the slot to carry out feeding or discharging operations.

[0008] Furthermore, a drain pipe for discharging the filtrate is installed on one side of the bottom of the machine body; the drain pipe structure is convenient for discharging the separated filtrate from the interior of the machine body.

[0009] Furthermore, a spring A is installed on one side of the outer periphery of the filter cartridge close to the injection and discharge holes and is connected to the end of the arc-shaped cover plate through the spring A; the spring A plays a connecting role and controls the arc-shaped cover plate to automatically close.

[0010] Furthermore, a through slot is provided on the side of the machine body and the control rod passes through the through slot; the through slot structure provides space for the movement of the control rod to facilitate the adjustment of its position.

[0011] Compared with the prior art, the utility model has the following beneficial effects: waste residue is stored inside the hopper, and the waste residue is put into the filter cartridge through the feed pipe. Since a fixed cylinder is provided at the center of the filter cartridge, the waste residue can only enter the cavity area between the inside of the filter cartridge and the outer periphery of the fixed cylinder after entering the filter cartridge, thereby limiting the single feeding amount while ensuring that the waste residue is attached to the inner wall of the filter cartridge. At this time, the motor drives the filter cartridge to rotate, and during the centrifugal dehydration process, the problem of poor dehydration effect and low efficiency of the internal waste residue caused by the accumulation of waste residue is effectively avoided, thereby ensuring the dehydration quality; during the rotation of the filter cartridge, the spring B makes the docking tube away from the filter cartridge and does not affect the rotation of the filter cartridge. When feeding or discharging is required, the control rod is used to move the docking tube so that its end is attached to the surface of the filter cartridge. At this time, the filter cartridge is controlled to rotate slowly until the side of the docking tube contacts the end of the arc cover plate and the arc cover plate is opened, so that the end of the docking tube can be docked with the injection and discharge hole, and then the baffle is pulled outward along the slot to perform feeding or discharging operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the overall structure of a NdFeB excellent dissolution in and out slag leaching and filtering device.

[0013] Figure 2The utility model is a schematic diagram of the internal structure of a NdFeB excellent dissolution in and out slag leaching and filtering device.

[0014] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a filter cartridge of a NdFeB excellent dissolution-in-and-out slag leaching and filtering device.

[0015] Figure 4 This is a schematic diagram of the internal structure of the butt joint pipe of a NdFeB leaching and filtering device for dissolving in and out slag in the utility model.

[0016] In the figure: 1. body; 2. filtering mechanism; 201. feed pipe; 202. hopper; 203. discharge pipe; 204. drain pipe; 205. motor; 206. filter cartridge; 207. fixed cartridge; 208. injection and discharge holes; 209. spring A; 210. arc-shaped cover plate; 3. control mechanism; 301. spring B; 302. butt joint; 303. slot; 304. baffle; 305. control rod; 306. through slot. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-4 As shown, a NdFeB superior dissolution slag leaching and filtering device comprises a body 1 and a filtering mechanism 2, wherein the filtering mechanism 2 is arranged inside the body 1, and the filtering mechanism 2 comprises a feed pipe 201, a hopper 202, a discharge pipe 203, a motor 205, a filter cartridge 206, a fixed cylinder 207, injection and discharge holes 208 and an arc-shaped cover plate 210, a feed pipe 201 is installed on the top of the body 1, and a hopper 202 for storing NdFeB superior dissolution slag is arranged on the top of the feed pipe 201, a discharge pipe 203 is arranged at the bottom of the body 1, a filter cartridge 206 located inside the body 1 is installed at the power output end of the motor 205, and the fixed cylinder 207 is fixedly connected inside the filter cartridge 206, an injection and discharge hole 208 is opened on one side of the surface of the filter cartridge 206, and an arc-shaped cover plate 210 is movably connected to the outer periphery of the filter cartridge 206 near the injection and discharge hole 208.

[0019] Among them, it also includes a control mechanism 3, the control mechanism 3 is installed inside the body 1, and the control mechanism 3 includes a spring B301, a butt joint pipe 302, a slot 303, a baffle 304 and a control rod 305. The upper and lower ends of the inner wall of the body 1 are movably connected with the butt joint pipe 302 through the spring B301, and the butt joint pipe 302 is respectively sleeved on the outer periphery of the feed pipe 201 and the discharge pipe 203. The end of the butt joint pipe 302 is provided with a slot 303, and the inside of the slot 303 is plugged with a baffle 304. One end of the surface of the baffle 304 is fixedly connected with a control rod extending to the outside of the body 1. Rod 305; during the rotation of the filter cartridge 206, the spring B301 keeps the docking tube 302 away from the filter cartridge 206 and does not affect the rotation of the filter cartridge 206. When feeding or discharging is required, the docking tube 302 is moved by controlling the rod 305 so that its end is attached to the surface of the filter cartridge 206. At this time, the filter cartridge 206 is controlled to rotate slowly until the side of the docking tube 302 contacts the end of the arc-shaped cover plate 210 and the arc-shaped cover plate 210 is opened, so that the end of the docking tube 302 can be docked with the injection and discharge hole 208, and then the baffle 304 is pulled outward along the slot 303 to carry out feeding or discharging operations.

[0020] Among them, a drain pipe 204 for discharging the filtered liquid is installed on one side of the bottom of the body 1, and a spring A209 is installed on the outer periphery of the filter cartridge 206 near the injection and discharge hole 208 and is connected to the end of the arc cover plate 210 through the spring A209; the drain pipe 204 structure is convenient for discharging the separated filtrate from the interior of the body 1, and the spring A209 plays a connecting role to control the automatic closing of the arc cover plate 210.

[0021] A through slot 306 is provided on the side of the body 1 and the control rod 305 passes through the through slot 306 ; the through slot 306 structure provides space for the control rod 305 to move and adjust its position conveniently.

[0022] It should be noted that the utility model is a NdFeB excellent dissolution slag leaching and filtering device. When working, the hopper 202 is filled with waste slag, and the waste slag is put into the filter cartridge 206 through the feed pipe 201. Since a fixed cylinder 207 is provided at the center of the filter cartridge 206, the waste slag can only enter the cavity area between the inside of the filter cartridge 206 and the outer periphery of the fixed cylinder 207 after entering the filter cartridge 206, limiting the single-time feeding amount while ensuring that the waste slag is attached to the inner wall of the filter cartridge 206. At this time, the motor 205 is running to drive the filter cartridge 206 to rotate, and in the process of centrifugal dehydration, the waste slag accumulation is effectively avoided, resulting in the dehydration efficiency of part of the internal waste slag. The problems of poor results and low efficiency are solved to ensure the deliquescence quality; during the rotation of the filter cartridge 206, the spring B301 makes the docking tube 302 stay away from the filter cartridge 206 and does not affect the rotation of the filter cartridge 206. When feeding or discharging is required, the docking tube 302 is moved by the control rod 305 so that its end is attached to the surface of the filter cartridge 206. At this time, the filter cartridge 206 is controlled to rotate slowly until the side of the docking tube 302 hits the end of the arc cover plate 210 and the arc cover plate 210 is opened, so that the end of the docking tube 302 can be docked with the injection and discharge hole 208, and then the baffle 304 is pulled outward along the slot 303 to carry out feeding or discharging operations.

[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A NdFeB leaching and filtering device for dissolving and dissolving slag, comprising a body (1), characterized in that: The machine body (1) further comprises a filtering mechanism (2), wherein the filtering mechanism (2) is arranged inside the machine body (1), and the filtering mechanism (2) comprises a feed pipe (201), a hopper (202), a discharge pipe (203), a motor (205), a filter cartridge (206), a fixing cartridge (207), a material injection and discharge hole (208), and an arc-shaped cover plate (210), wherein the feed pipe (201) is installed on the top of the machine body (1), and a storage container for storing NdFeB is arranged on the top of the feed pipe (201). A slag hopper (202), a discharge pipe (203) is arranged at the bottom of the machine body (1), a filter cartridge (206) located inside the machine body (1) is installed at the power output end of the motor (205), and a fixed cylinder (207) is fixedly connected inside the filter cartridge (206), a discharge hole (208) is opened on one side of the surface of the filter cartridge (206), and an arc-shaped cover plate (210) is movably connected to the outer periphery of the filter cartridge (206) near the discharge hole (208).

2. A NdFeB leaching and filtering device for dissolving in and out of slag according to claim 1, characterized in that: The machine body (1) further comprises a control mechanism (3), wherein the control mechanism (3) is installed inside the machine body (1), and the control mechanism (3) comprises a spring B (301), a butt joint pipe (302), a slot (303), a baffle (304) and a control rod (305). The upper and lower ends of the inner wall of the machine body (1) are movably connected to the butt joint pipe (302) through the spring B (301), and the butt joint pipe (302) is respectively sleeved on the outer periphery of the feed pipe (201) and the discharge pipe (203). The end of the butt joint pipe (302) is provided with a slot (303), and the inside of the slot (303) is plugged with a baffle (304), and one end of the surface of the baffle (304) is fixedly connected to a control rod (305) extending to the outside of the machine body (1).

3. The NdFeB leaching and filtering device according to claim 1, characterized in that: A liquid discharge pipe (204) for discharging filtered liquid is installed on one side of the bottom of the machine body (1).

4. The NdFeB leaching and filtering device according to claim 1, characterized in that: A spring A (209) is installed on one side of the outer periphery of the filter cartridge (206) close to the injection and discharge hole (208), and is connected to the end of the arc-shaped cover plate (210) through the spring A (209).

5. The NdFeB leaching and filtering device according to claim 2, characterized in that: A through slot (306) is provided on the side of the machine body (1), and the control rod (305) passes through the inside of the through slot (306).

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