A waste treatment device for removing impurities from crude indium

Abstract

This utility model discloses a waste treatment device for removing impurities from crude indium, relating to the field of crude indium impurity removal technology. The utility model includes a shell, with a screening assembly located at the upper part of the shell's interior and a discharge assembly located at the lower part of the shell's interior. The screening assembly includes mounting plates fixedly connected to the upper parts of the inner walls on both sides of the shell. A mounting frame is movably connected below the mounting plates, and a screen plate is fixedly connected inside the mounting frame. Eccentric wheels are abutted to the front and rear ends of the bottom of the mounting frame. This utility model uses the eccentric wheels to drive the crude indium waste on the screen plate to vibrate, and a rack and pinion drives the flushing pipe to reciprocate, thus achieving flushing of the extracted waste. This solves the problem of existing devices being inconvenient for flushing waste between multiple extraction stages. Simultaneously, the rotation of the rotating pipe allows it to connect to a drain pipe or multiple dispensing pipes, solving the problem of existing devices being inconvenient for dispensing multiple extracts.

Description

Technical Field

[0001] This utility model belongs to the field of crude indium impurity removal technology, and in particular relates to a waste treatment device for crude indium impurity removal. Background Technology

[0002] Crude indium is a product made from indium ore through multiple processes such as beneficiation, copper smelting, extraction and electrolysis. Because it contains a large number of impurities, crude indium usually needs to be purified to remove impurities in order to facilitate the production of refined indium. The waste after removing impurities from crude indium contains some metallic elements such as zinc, lead, copper and tin. In order to facilitate the recycling and reuse of these metallic elements, the waste is usually treated.

[0003] Existing methods for treating crude indium impurities typically employ multi-stage extraction. This involves crushing the waste and placing it in an extraction tank where various extracts are used for separate purification to recover the metal elements from the waste. However, this method is inconvenient for cleaning the waste from the multi-stage extraction process, resulting in residual extracts on the waste surface affecting the next stage of extraction and thus leading to poor metal element recovery. Furthermore, it is not convenient to classify and store the extracted liquid, making it difficult to recover and reuse the metal elements in the liquid, resulting in low work efficiency.

[0004] To address these issues, we provide a waste treatment device for removing impurities from crude indium. Utility Model Content

[0005] The purpose of this invention is to provide a waste treatment device for removing impurities from crude indium. The device uses an eccentric wheel to drive the crude indium waste on the sieve plate to vibrate, and a rack and pinion to drive the flushing pipe to rotate reciprocally, thereby flushing the waste after extraction. This solves the problem of the existing device being inconvenient to flush waste between multiple extraction stages. At the same time, the rotation of the rotating pipe allows it to be connected to the drain pipe or multiple dispensing pipes, solving the problem of the existing device being inconvenient to dispense multiple extracts.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a waste treatment device for removing impurities from crude indium, including a shell, a screening component arranged at the upper part of the shell, and a discharge component arranged at the lower part of the shell.

[0008] The screening assembly includes mounting plates fixedly connected to the upper inner walls of both sides of the outer shell. A mounting frame is movably connected to the lower part of the mounting plates. A screen plate is fixedly connected inside the mounting frame. Eccentric wheels are abutted to the front and rear ends of the bottom of the mounting frame. A flushing pipe is rotatably connected to the side of the mounting plates that are close to each other. Multiple nozzles are fixedly connected to the flushing pipe at equal intervals along its axis. The front end of the flushing pipe extends to the front end of the outer shell and is connected to a water inlet pipe through a first rotary joint. A fourth gear is sleeved on the section of the flushing pipe located on the outer side of the outer shell. Racks are movably connected to both sides above the front end face of the outer shell. The racks mesh with the lower part of the fourth gear.

[0009] The discharge assembly includes a discharge hopper fixedly connected to the center of the housing. A discharge pipe runs through the bottom of the discharge hopper. The bottom end of the discharge pipe is connected to a rotating pipe via a second rotary joint. The bottom end of the rotating pipe extends to the lower outer side of the housing. A fixing plate is fixedly connected to the bottom of the housing. A drain pipe and a dispensing pipe run through multiple arms of the fixing plate. The bottom ends of both the drain pipe and the dispensing pipe are fixedly connected to a discharge head.

[0010] A further feature of this invention is that multiple mounting rods are fixedly connected at equal intervals along the length of the lower surface of the mounting plate, and the bottom ends of the mounting rods movably penetrate through both sides of the surface of the mounting frame and are fixedly connected to limit plates, which are located on the lower sides of the mounting frame.

[0011] The present invention is further configured as follows: multiple rotating shafts are rotatably connected longitudinally at equal intervals from left to right inside the upper part of the outer shell. Eccentric wheels are respectively sleeved on the front and rear ends of the outer wall of the rotating shaft. The front end of the rotating shaft rotates through the front end face of the outer shell and is fixedly connected to a second gear. A third gear is meshed between the second gears. A second drive motor is fixedly connected to the upper part of the rear end face of the outer shell through a second motor frame. The output shaft of the second drive motor is fixedly connected to the rear end of one of the rotating shafts.

[0012] The present invention is further configured such that: a feeding hopper extends through the top of the outer shell, and crushing rollers are rotatably connected to both sides of the upper part of the feeding hopper; the front end of the crushing roller extends to the front end of the outer side of the feeding hopper and is fitted with a first gear; the first gears mesh with each other; a first drive motor is fixed to one side of the rear end face of the feeding hopper via a first motor frame; and the output shaft of the first drive motor is fixedly connected to the rear end of one of the crushing rollers.

[0013] A further feature of this invention is that: mounting seats are fixedly connected to both sides above the front end face of the outer shell, and movable rods are movably passed through the mounting seats; mounting blocks are fixedly connected to the ends of the movable rods that are far apart from each other; racks are fixedly connected to the top of the mounting blocks; movable plates are fixedly connected to the ends of the movable rods that are close to each other; and return springs are sleeved on the outer side of the movable rods, with the two ends of the return springs fixedly connected to the opposing surfaces of the mounting seats and the movable plates, respectively.

[0014] A further feature of this invention is that a third drive motor is fixedly connected above the front end face of the outer shell via a third motor frame, and an elliptical disk is sleeved on the output shaft of the third drive motor. The elliptical disk is located between adjacent movable plates, and the two sides of the elliptical disk are abutted against the opposing surfaces of the movable plates.

[0015] A further feature of this invention is that a first synchronous pulley is fitted on the outer wall of the rotating tube, the first synchronous pulley is located inside the lower part of the outer shell, a fourth drive motor is fixedly connected to the rear end face inside the lower part of the outer shell via a fourth motor frame, a second synchronous pulley is fitted on the output shaft of the fourth drive motor, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive.

[0016] A further feature of this invention is that a first sleeve ring is fitted at the bottom end of the rotating tube, and a first electromagnet is fitted and fixed on both sides of the end face of the first sleeve ring; a second sleeve ring is fitted at the top end of both the sewage pipe and the dispensing pipe, and a second electromagnet is fitted and fixed on both sides of the end face of the second sleeve ring.

[0017] A further feature of this invention is that multiple fixing rods are fixedly connected at equal intervals to the upper surface of the fixing plate, and the top ends of the fixing rods are fixedly connected to the bottom of the outer shell.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model, by setting up a screening component, adds clean water to the flushing pipe through the water inlet pipe, and simultaneously starts the second and third drive motors. The output shaft of the second drive motor drives the eccentric wheel to rotate through the rotating shaft. The eccentric wheel drives the screen plate and waste to vibrate through the mounting frame. The output shaft of the third drive motor drives the rack to reciprocate linearly through the elliptical disk. The rack drives the flushing pipe to reciprocate through the fourth gear. Thus, the waste vibrating on the screen plate is flushed through the flushing pipe, which facilitates the flushing and cleaning of waste between multi-stage extraction, avoids residual extract from affecting subsequent processing, and improves the treatment effect of waste after crude indium impurity removal.

[0020] 2. This utility model, by setting up a discharge component, closes the second electromagnet on the dispensing pipe or sewage pipe, separating the dispensing pipe or sewage pipe from the rotating pipe. Then, the fourth drive motor is started, and the output shaft of the fourth drive motor drives the rotating pipe to rotate via a synchronous belt, thereby making the rotating pipe contact the new dispensing pipe or sewage pipe. The second electromagnet on the dispensing pipe or sewage pipe is then activated, connecting the rotating pipe to the new dispensing pipe or sewage pipe. Simultaneously, the sewage valve on the discharge pipe is opened, allowing the extract or wastewater in the discharge hopper to enter the dispensing pipe or sewage pipe through the rotating pipe. The extract or wastewater is then dispensed into different containers through the discharge head, realizing the dispensing of extract in multi-stage extraction. This facilitates multi-stage extraction treatment of waste after crude indium impurity removal, and makes it easier to recycle and reuse the metal elements in the waste. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of the crushing roller of this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of the screening component of this utility model.

[0025] Figure 4 This is a schematic diagram of the installation of the mounting plate and flushing pipe of this utility model.

[0026] Figure 5 This is a schematic diagram of the mounting frame of this utility model.

[0027] Figure 6 This is a schematic diagram of the installation of the rack and pinion and the third drive motor of this utility model.

[0028] Figure 7 This is a schematic diagram of the material discharge assembly of this utility model.

[0029] Figure 8 This is a structural disassembly diagram of the discharge hopper, rotating tube, and fourth drive motor of this utility model.

[0030] Figure 9 This is a structural schematic diagram of the fixing plate, sewage pipe and dispensing pipe of this utility model.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1-Outer shell, 2-Feed hopper, 201-Crushing roller, 202-First gear, 203-First motor frame, 204-First drive motor, 3-Screening assembly, 301-Mounting plate, 301a-Mounting rod, 301b-Limiting plate, 302-Mounting frame, 303-Screen plate, 304-Eccentric wheel, 304a-Rotating shaft, 304b-Second gear, 304c-Third gear, 304d-Second motor frame, 304e-Second drive motor, 305-Flush pipe, 305a-Nozzle, 305b-First rotary joint, 305c-Water inlet pipe, 305d-Fourth gear, 306-Rack, 306a-Mounting base, 306b-Moving rod, 306c-Fixing plate 306d-Moving plate, 306e-Reset spring, 307-Third drive motor, 307a-Third motor frame, 307b-Elliptical disc, 4-Discharge assembly, 401-Discharge hopper, 401a-Discharge pipe, 401b-Second rotary joint, 402-Rotating pipe, 402a-First synchronous pulley, 402b-First collar, 402c-First electromagnet, 403-Fourth drive motor, 403a-Fourth motor frame, 403b-Second synchronous pulley, 403c-Synchronous belt, 404-Fixing plate, 404a-Fixing rod, 405-Drainage pipe, 405a-Discharge head, 405b-Second collar, 405c-Second electromagnet, 406-Dispensing pipe. Detailed Implementation

[0033] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0034] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this is the first embodiment of the present invention. This embodiment provides a waste treatment device for removing impurities from crude indium, including a housing 1. A screening component 3 is arranged on the upper part of the interior of the housing 1. The screening component 3 includes a mounting plate 301, a mounting frame 302, a sieve plate 303, a flushing pipe 305, and a rack 306. The crude indium waste on the sieve plate 303 is driven to vibrate by an eccentric wheel 304, and the flushing pipe 305 is driven to reciprocate by the rack 306, thereby flushing the waste after extraction and solving the problem of the inconvenience of flushing waste between multiple extraction stages in the existing system.

[0035] Specifically, two mounting plates 301 are provided and fixedly connected to the upper part of the inner walls on both sides of the outer casing 1. A mounting frame 302 is movably connected to the lower part of the mounting plate 301. A screen plate 303 is fixedly connected inside the mounting frame 302. An eccentric wheel 304 is abutted to the front and rear ends of the bottom of the mounting frame 302. A flushing pipe 305 is rotatably connected to the side of the mounting plates 301 that is close to each other. Multiple nozzles 305a are fixedly connected to the flushing pipe 305 at equal intervals along its axial direction. The front end of the flushing pipe 305 extends to the front end of the outer side of the outer casing 1 and is connected to a water inlet pipe 305c through a first rotary joint 305b. A section of the flushing pipe 305 located on the outer side of the outer casing 1 is sleeved. A fourth gear 305d is provided. Racks 306 are movably connected to both sides above the front end face of the outer casing 1. The racks 306 mesh with the lower part of the fourth gear 305d. The mounting plate 301 is used to install the mounting frame 302 and other structures. The mounting frame 302 is used to install the sieve plate 303. The sieve plate 303 is used for solid-liquid separation. The eccentric wheel 304 is used to drive the mounting frame 302 to vibrate. The flushing pipe 305 and the nozzle 305a are used to flush and clean the waste material from the crude indium removal process on the sieve plate 303. The fourth gear 305d and the racks 306 are used to drive the flushing pipe 305 to rotate back and forth.

[0036] Furthermore, multiple mounting rods 301a are fixedly connected at equal intervals along the length direction of the lower surface of the mounting plate 301. The bottom ends of the mounting rods 301a movably penetrate through both sides of the surface of the mounting frame 302 and are fixedly connected to the limiting plates 301b. The limiting plates 301b are located on both sides below the mounting frame 302.

[0037] Multiple rotating shafts 304a are rotatably connected longitudinally from left to right at equal intervals inside the upper part of the outer casing 1. Eccentric wheels 304 are respectively sleeved on the front and rear ends of the outer wall of the rotating shaft 304a. The front end of the rotating shaft 304a rotates through the front end face of the outer casing 1 and is fixedly connected to a second gear 304b. A third gear 304c is meshed between the second gears 304b. A second drive motor 304e is fixedly connected to the upper part of the rear end face of the outer casing 1 through a second motor frame 304d. The output shaft of the second drive motor 304e is fixedly connected to the rear end of one of the rotating shafts 304a.

[0038] The top of the outer shell 1 is penetrated by a feed hopper 2. Both sides of the upper part of the feed hopper 2 are rotatably connected to crushing rollers 201. The front end of the crushing rollers 201 extends to the outer front end of the feed hopper 2 and is fitted with a first gear 202. The first gears 202 mesh with each other. The rear end face of the feed hopper 2 is fixed to a first drive motor 204 by a first motor frame 203. The output shaft of the first drive motor 204 is fixedly connected to the rear end of one of the crushing rollers 201.

[0039] Mounting seats 306a are fixedly connected to both sides of the upper front face of the outer casing 1. Movable rods 306b are movably passed through the mounting seats 306a. Mounting blocks 306c are fixedly connected to the ends of the movable rods 306b that are far apart from each other. A rack 306 is fixedly connected to the top of the mounting block 306c. Movable plates 306d are fixedly connected to the ends of the movable rods 306b that are close to each other. A return spring 306e is sleeved on the outside of the movable rods 306b. The two ends of the return spring 306e are fixedly connected to the facing surfaces of the mounting seats 306a and the movable plates 306d, respectively.

[0040] A third drive motor 307 is fixedly connected above the front end face of the outer casing 1 via a third motor frame 307a. An elliptical disk 307b is sleeved on the output shaft of the third drive motor 307. The elliptical disk 307b is located between adjacent movable plates 306d, and the two sides of the elliptical disk 307b are abutted and connected to the opposing surfaces of the movable plate 306d.

[0041] The operation process of this embodiment is as follows: First, the waste material from crude indium removal is placed into the feed hopper 2, and the first drive motor 204 is started. The first drive motor 204 drives the crushing roller 201 to crush the waste material in the feed hopper 2. The crushed waste material enters the outer shell 1 and falls onto the screen plate 303. Then, extraction liquid is added into the outer shell 1 to recover the metal elements in the waste material. After a single extraction is completed, the extraction liquid is discharged, and clean water is added into the flushing pipe 305 through the water inlet pipe 305c. At the same time, the second drive motor 304e and the third drive motor 307 are started. The output shaft of motor 304e drives eccentric wheel 304 to rotate via shaft 304a. Eccentric wheel 304 drives screen plate 303 and waste to vibrate via mounting frame 302. The output shaft of third drive motor 307 drives rack 306 to reciprocate linearly via elliptical disk 307b. Rack 306 drives flushing pipe 305 to reciprocate through fourth gear 305d. Thus, the flushing pipe 305 flushes the vibrating waste on screen plate 303. Finally, the wastewater inside shell 1 is discharged and new extraction liquid is added, realizing multi-stage extraction treatment of waste after impurity removal of crude indium. Example 2

[0042] Please see Figure 1 , Figure 7 , Figure 8 and Figure 9As shown, this is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: a discharge assembly 4 is also provided at the lower part of the interior of the outer shell 1. The discharge assembly 4 includes a discharge hopper 401, a rotating tube 402, a fixing plate 404, a drain pipe 405, and a dispensing pipe 406. By rotating the rotating tube 402, the rotating tube 402 is connected to the drain pipe 405 or multiple dispensing pipes 406, which solves the problem that it is inconvenient to dispense multiple extracts.

[0043] Specifically, the discharge hopper 401 is fixedly connected to the center of the inner part of the outer shell 1. The bottom of the discharge hopper 401 is penetrated by a discharge pipe 401a. An electrically controlled drain valve is also provided on the discharge pipe 401a. The bottom end of the discharge pipe 401a is connected to a rotating pipe 402 through a second rotary joint 401b. The bottom end of the rotating pipe 402 extends to the lower outer side of the outer shell 1. A fixing plate 404 is fixedly connected to the bottom of the outer shell 1. A drain pipe 405 and a dispensing pipe 406 are respectively penetrated on multiple arms of the fixing plate 404. The bottom ends of the drain pipe 405 and the dispensing pipe 406 are both fixedly connected to a discharge head 405a.

[0044] Furthermore, a first synchronous pulley 402a is sleeved on the outer wall of the rotating tube 402. The first synchronous pulley 402a is located inside the lower part of the outer casing 1. A fourth drive motor 403 is fixedly connected to the rear end face inside the lower part of the outer casing 1 through a fourth motor frame 403a. A second synchronous pulley 403b is sleeved on the output shaft of the fourth drive motor 403. The first synchronous pulley 402a and the second synchronous pulley 403b are connected by a synchronous belt 403c.

[0045] The bottom end of the rotating tube 402 is fitted with a first collar 402b, and the two sides of the end face of the first collar 402b are fitted with a first electromagnet 402c. The top ends of the sewage pipe 405 and the dispensing pipe 406 are fitted with a second collar 405b, and the two sides of the end face of the second collar 405b are fitted with a second electromagnet 405c.

[0046] Multiple fixing rods 404a are fixedly connected at equal intervals on the upper surface of the fixing plate 404, and the top ends of the fixing rods 404a are fixedly connected to the bottom of the outer shell 1.

[0047] The rest of the structure is the same as in Example 1.

[0048] The operation process of this embodiment is as follows: the second electromagnet 405c on the dispensing pipe 406 or the drain pipe 405 is closed, so that the dispensing pipe 406 or the drain pipe 405 is separated from the rotating pipe 402. Then, the fourth drive motor 403 is started. The output shaft of the fourth drive motor 403 drives the rotating pipe 402 to rotate through the synchronous belt 403c, so that the rotating pipe 402 contacts the new dispensing pipe 406 or the drain pipe 405. The second electromagnet 405c on the dispensing pipe 406 or the drain pipe 405 is started, so that the rotating pipe 402 is connected to the new dispensing pipe 406 or the drain pipe 405. At the same time, the drain valve on the discharge pipe 401a is opened, so that the extract or sewage in the discharge hopper 401 enters the dispensing pipe 406 or the drain pipe 405 through the rotating pipe 402. The extract or sewage is then dispensed into different containers through the discharge head 405a, thus realizing the dispensing of extract in multi-stage extraction.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A waste treatment device for removing impurities from crude indium, comprising a housing (1), characterized in that: A screening component (3) is provided on the upper part of the interior of the outer shell (1), and a discharge component (4) is also provided on the lower part of the interior of the outer shell (1). The screening assembly (3) includes mounting plates (301) fixedly connected to the upper sides of the inner walls of the outer shell (1), and a mounting frame (302) movably connected to the lower part of the mounting plates (301). A screen plate (303) is fixedly connected inside the mounting frame (302), and eccentric wheels (304) are abutting each other at the front and rear ends of the bottom of the mounting frame (302). A flushing pipe (305) is rotatably connected to the side of the mounting plates (301) that is close to each other, and the flushing pipe (305) is rotatably connected to the upper edge of its side. Multiple nozzles (305a) are fixedly connected at equal intervals along the axial direction. The front end of the flushing pipe (305) extends to the outer front end of the outer shell (1) and is connected to the water inlet pipe (305c) through the first rotary joint (305b). A fourth gear (305d) is sleeved on a section of the flushing pipe (305) located on the outer side of the outer shell (1). Racks (306) are movably connected to both sides above the front end face of the outer shell (1), and the racks (306) mesh with the lower part of the fourth gear (305d). The discharge assembly (4) includes a discharge hopper (401) fixedly connected to the center of the interior of the outer shell (1), and a discharge pipe (401a) is passed through the bottom of the discharge hopper (401). The bottom end of the discharge pipe (401a) is connected to a rotating pipe (402) through a second rotary joint (401b). The bottom end of the rotating pipe (402) extends to the lower outer side of the outer shell (1). A fixing plate (404) is fixedly connected to the bottom of the outer shell (1), and a drain pipe (405) and a dispensing pipe (406) are respectively passed through multiple arms of the fixing plate (404). The bottom ends of the drain pipe (405) and the dispensing pipe (406) are both fixedly connected to a discharge head (405a).

2. The waste treatment device for removing impurities from crude indium according to claim 1, characterized in that, The lower surface of the mounting plate (301) is fixedly connected with multiple mounting rods (301a) at equal intervals along its length direction, and the bottom end of the mounting rod (301a) movably passes through both sides of the surface of the mounting frame (302) and is fixedly connected with a limiting plate (301b), which is located on both sides below the mounting frame (302).

3. The waste treatment device for removing impurities from crude indium according to claim 1, characterized in that, Multiple rotating shafts (304a) are rotatably connected longitudinally from left to right at equal intervals inside the upper part of the outer shell (1), and eccentric wheels (304) are respectively sleeved on the front and rear ends of the outer wall of the rotating shaft (304a). The front end of the rotating shaft (304a) rotates through the front end face of the outer shell (1) and is fixedly connected to a second gear (304b). A third gear (304c) is meshed between the second gears (304b). A second drive motor (304e) is fixedly connected above the rear end face of the outer shell (1) through a second motor frame (304d), and the output shaft of the second drive motor (304e) is fixedly connected to the rear end of one of the rotating shafts (304a).

4. The waste treatment device for removing impurities from crude indium according to claim 3, characterized in that, The top of the outer shell (1) is penetrated by a feed hopper (2), and both sides of the upper part of the feed hopper (2) are rotatably connected to crushing rollers (201). The front end of the crushing roller (201) extends to the outer front end of the feed hopper (2) and is fitted with a first gear (202). The first gears (202) mesh with each other. The rear end face of the feed hopper (2) is fixed with a first drive motor (204) by a first motor frame (203), and the output shaft of the first drive motor (204) is fixedly connected to the rear end of one of the crushing rollers (201).

5. The waste treatment device for removing impurities from crude indium according to claim 1, characterized in that, Mounting seats (306a) are fixedly connected to both sides of the front end face of the outer shell (1), and movable rods (306b) are movably passed through the mounting seats (306a). The ends of the movable rods (306b) that are far apart from each other are fixedly connected to mounting blocks (306c), and racks (306) are fixedly connected to the top of mounting blocks (306c). The ends of the movable rods (306b) that are close to each other are fixedly connected to movable plates (306d), and return springs (306e) are sleeved on the outer side of the movable rods (306b). The two ends of the return springs (306e) are fixedly connected to the facing surfaces of the mounting seats (306a) and movable plates (306d), respectively.

6. The waste treatment device for removing impurities from crude indium according to claim 5, characterized in that, A third drive motor (307) is fixedly connected above the front end face of the outer shell (1) via a third motor frame (307a), and an elliptical disk (307b) is sleeved on the output shaft of the third drive motor (307). The elliptical disk (307b) is located between adjacent movable plates (306d), and the two sides of the elliptical disk (307b) are abutted against the opposing surfaces of the movable plate (306d).

7. The waste treatment device for removing impurities from crude indium according to claim 1, characterized in that, The outer wall of the rotating tube (402) is fitted with a first synchronous pulley (402a), and the first synchronous pulley (402a) is located inside the lower part of the outer shell (1). The rear end face inside the lower part of the outer shell (1) is fixedly connected to a fourth drive motor (403) by a fourth motor frame (403a), and a second synchronous pulley (403b) is fitted on the output shaft of the fourth drive motor (403). The first synchronous pulley (402a) and the second synchronous pulley (403b) are connected by a synchronous belt (403c).

8. The waste treatment device for removing impurities from crude indium according to claim 1, characterized in that, The bottom end of the rotating tube (402) is fitted with a first collar (402b), and a first electromagnet (402c) is fitted and fixed on both sides of the end face of the first collar (402b). The top ends of the sewage pipe (405) and the dispensing pipe (406) are fitted with a second collar (405b), and a second electromagnet (405c) is fitted and fixed on both sides of the end face of the second collar (405b).

9. A waste treatment device for removing impurities from crude indium according to claim 1, characterized in that, The upper surface of the fixing plate (404) is fixedly connected with multiple fixing rods (404a) at equal intervals, and the top of the fixing rods (404a) is fixedly connected to the bottom of the outer shell (1).

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