Efficient recovery treatment equipment and method for indium tin smelting waste residues

Abstract

The invention relates to the technical field of metal smelting waste residue recovery, in particular to an indium tin smelting waste residue efficient recovery treatment device and method.The device comprises a machine body, a screen drum and a smashing mechanism, the machine body comprises a machine shell, a feeding hopper and a power assembly, the smashing mechanism comprises a smashing assembly, and the smashing assembly comprises a fixed frame, a fixed roller and a movable roller. According to the indium tin smelting waste residue crushing device, large indium tin smelting waste residues intercepted by the screen drum can be shoveled up again and then crushed by the crushing mechanism till being discharged through the screen drum, and when the indium tin smelting waste residues meet high-hardness indium tin smelting waste residues in the crushing process, the indium tin smelting waste residues can generate lateral thrust on the movable roller to push the movable plate to compress the spring and slide along the guide rail; the distance adaptability between the fixed roller and the movable roller is improved, rigid collision between the high-hardness indium tin smelting waste residues and the crushing tooth surfaces is avoided, and therefore the crushing tooth surfaces of the fixed roller and the movable roller are protected against damage.

Description

Technical Field

[0001] The present invention relates to the technical field of metal smelting waste slag recovery, and in particular to an efficient recovery and treatment device and method for indium tin smelting waste slag. Background Art

[0002] As an important rare metal, indium tin (Indium Tin) is widely used in electronics, optoelectronics, and other fields. The smelting process of Indium Tin (Indium Tin) produces a large amount of waste residue, which still contains a certain amount of Indium Tin and has a high recycling value. Recycling Indium Tin smelting waste residue not only improves resource utilization, but also reduces the impact of waste on the environment, in line with the concept of green development.

[0003] The patent with patent number CN221638710U discloses an alloy smelting waste slag recovery device, which includes a box body, a first slider, a first screen plate and a second screen plate. Discharge ports are provided on both sides of the box body, and first slide grooves are provided on both inner walls of the box body. The first slider is slidably connected to the first slide groove, and the first slider is fixedly installed on the left side wall of the first screen plate and the right side wall of the second screen plate. Auxiliary blocks are fixedly installed on the left side wall of the first screen plate and the right side wall of the second screen plate, and an arc groove is provided on the auxiliary block. Vibration components are provided on both side walls of the box body, guide components are provided on both side walls of the box body, a receiving component is provided at the bottom of the box body, and an observation component is provided on the front of the box body; the alloy smelting waste slag recovery device can directly screen the waste slag when in use, which is convenient for reuse after screening, and the screening effect is better through vibration, thereby avoiding the screen plate being blocked by waste slag and improving work efficiency.

[0004] The alloy smelting waste slag recovery device only screens waste slag of different volumes through the vibration of the first sieve plate and the second sieve plate. For the large pieces of waste slag intercepted by the sieve plates, no corresponding crushing and processing structure is set. The large pieces of waste slag can only be discharged directly from the discharge port and cannot be further crushed to the required particle size. As a result, the large pieces of waste slag need to be transferred to other equipment for secondary processing, making the waste slag processing process cumbersome. In view of this, we propose an efficient recovery and processing equipment for indium tin smelting waste slag. Summary of the Invention

[0005] The purpose of the present invention is to provide an efficient recovery and treatment device and method for indium tin smelting waste slag to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: An efficient recovery and treatment device for indium tin smelting waste residue, comprising: The machine body is the main part of the equipment, comprising a cylindrical casing, a feed hopper mounted at the rear end of the casing, and a power assembly mounted at the top of the front end of the casing, with a discharge hopper fixed on the outer peripheral surface of the bottom end of the casing; A sieve drum, which serves as a screening component for indium tin smelting waste slag, has a mesh-cylinder structure and is coaxially sleeved inside the housing. The power assembly can drive the sieve drum to rotate circumferentially inside the housing. Ring plates are fixed to the front and rear inner walls of the sieve drum, and a plurality of shovel plates are fixed between the two ring plates. The shovel plates are distributed in an annular array with the axis of the sieve drum as the center, so that fine indium tin smelting waste slag can pass through the sieve drum and fall into the housing; A crushing mechanism is used to crush the indium tin smelting waste slag intercepted by the screen drum. The crushing mechanism includes a crushing assembly arranged at the center of the screen drum along the axis of the screen drum. The crushing assembly includes a fixed frame, a fixed roller rotatably connected to the fixed frame, and a movable roller installed in the fixed frame. The fixed roller and the movable roller are both coaxially connected to a crushing motor. When the screen drum rotates, the indium tin smelting waste slag is scooped up by the shovel plate and thrown between the fixed roller and the movable roller.

[0007] In the technical solution of the present invention, annular retaining rings are fixed on the inner walls of the front and rear sides of the casing, a discharge port is opened at the bottom of the casing between the two retaining rings, and the top of the discharge hopper covers the bottom of the discharge port; In this setting, the retaining ring can prevent the waste residue in the casing from leaking out from the gaps at the front and rear ends. The discharge port cooperates with the discharge hopper to discharge the fine waste residue screened out in a centralized manner.

[0008] In the technical solution of the present invention, a plurality of pairs of bosses are fixed on the inner walls of the front and rear sides of the casing in a circular array with the axis of the casing as the center, and a roller is rotatably connected between each pair of bosses. The axis of the roller is parallel to the axis of the casing, and an annular groove is formed on the outer peripheral surface of the roller. Fixed rings are fixed on the outer peripheral surfaces of the front and rear ends of the screen drum. The positions of the rollers correspond to those of the fixed rings, and the fixed rings extend into the annular grooves. In this setting, the convex seat provides an installation fulcrum for the roller. The cooperation between the roller and the fixed ring can guide and support the rotation of the screen drum, reducing friction during the rotation of the screen drum.

[0009] In the technical solution of the present invention, the bottom end of the feed hopper is connected to an extension hopper, the bottom end of the extension hopper is inclined and extends into the interior of the screen drum, and the feed hopper is fixedly connected to the casing through a fixing rod; In this setting, the tilted design of the extension bucket can guide the waste residue into the screen drum smoothly, and the fixing rod can firmly fix the feed hopper to ensure stability during feeding.

[0010] In the technical solution of the present invention, the power assembly includes a base plate fixedly connected to the casing, a driving motor installed on the rear end surface of the base plate, and a connecting gear rotatably connected to the bottom position of the front end of the base plate, the bottom end of the base plate passes through and extends into the casing, the output shaft end of the driving motor is coaxially connected to a driving gear, the driving gear is meshed with the connecting gear, a gear ring is fixed at the front end edge of the outer surface of the screen drum, the bottom of the connecting gear extends into the casing and meshes with the gear ring; In this setting, the base plate provides a mounting base for the components of the power assembly. Through the meshing transmission between the gears, the power of the drive motor can be transmitted to the screen drum, driving the screen drum to rotate circumferentially.

[0011] In the technical solution of the present invention, the fixed frame is a hollow rectangular parallelepiped structure, the top and bottom ends of the fixed frame are transparent, the axial directions of the fixed roller and the movable roller are parallel to the length direction of the fixed frame, and the outer peripheral surfaces of the fixed roller and the movable roller are both tooth-shaped structures; In this setting, the fixed frame provides installation space for the fixed roller and the movable roller. The transparent structure at the top and bottom facilitates the entry and exit of waste slag, and the tooth structure can enhance the crushing effect of the waste slag.

[0012] The cam is secured to the front of the frame and is accessible via a plurality of levers, each of which is secured to a position adjacent to the frame by a plurality of levers connected thereto. The cams are secured to the front of the frame by a plurality of levers connected thereto. The cams are secured to the front of the frame by a plurality of levers connected thereto. In this setting, the guide rail and guide groove cooperate to ensure the smooth sliding of the movable plate. The elastic force of the spring can make the movable roller adapt to the waste residue of different hardness, avoiding the damage of the crushing tooth surface due to rigid collision.

[0013] In the technical solution of the present invention, both ends of the crushing assembly are fixed with fixing frames, and the two fixing frames are fixedly connected to the front and rear ends of the casing respectively; In this setting, the fixing frame can firmly fix the crushing assembly in the casing to ensure the stability of the crushing assembly during operation.

[0014] In the technical solution of the present invention, a connecting bucket is fixed to the top of the fixed frame, and the connecting bucket is used to receive the indium tin smelting waste shoveled by the shovel plate. A gathering bucket is fixed to the bottom of the fixed frame, and the gathering bucket is used to discharge the indium tin smelting waste slag crushed by the crushing assembly into the sieve drum. In this setting, the connecting bucket can accurately receive the waste residue scooped up by the shovel, and the gathering bucket can guide the crushed waste residue into the screen drum for further screening.

[0015] On the other hand, the present invention also provides a method for efficiently recycling and treating indium tin smelting waste residue, which uses the above-mentioned efficient recycling and treating equipment for indium tin smelting waste residue, comprising the following steps: S1. Equipment preparation and input of indium tin smelting waste slag: Check that all equipment components are securely connected, ensuring that the housing, screen drum, crushing mechanism, and other components are in normal condition. Confirm that the screen drum's mesh diameter is 1.5-2.5mm and that the initial spacing between the fixed and movable rollers is 8-12mm. Feed the indium tin smelting waste slag to be processed from the feed hopper. The initial particle size of the indium tin smelting waste slag should not exceed 300mm, and the moisture content should be controlled at 8-12%. The indium tin smelting waste slag is guided by a stainless steel extension hopper and smoothly enters the screen drum to avoid accumulation at the feed port. S2. Screening and power drive start: Start the drive motor in the power assembly. The power of the drive motor is 15-25kW, and the speed is set to 30-50r / min. The drive motor drives the screen drum to rotate circumferentially inside the casing through the meshing transmission of the driving gear, the connecting gear, and the gear ring. During the rotation of the screen drum, its high-manganese steel mesh cylinder structure screens the indium tin smelting waste slag. The fine indium tin smelting waste slag with a particle size of ≤2mm passes through the screen drum and falls into the casing. It is finally discharged and collected through the discharge port and cast iron discharge hopper. S3. Shoveling and crushing of large pieces of indium tin smelting waste slag: When the screen drum rotates, the wear-resistant steel shovel inside it rotates synchronously with the screen drum, scooping up the large pieces of indium tin smelting waste slag intercepted by the screen drum. The large pieces of indium tin smelting waste slag with a particle size of more than 2mm are thrown into the stainless steel connecting bucket at the top of the fixed frame. By starting two crushing motors with a power of 20-30kW and a set speed of 600-900r / min, the two crushing motors drive the fixed roller and the movable roller to rotate respectively, so that the large pieces of indium tin smelting waste slag entering between the fixed roller and the movable roller are crushed by the tooth-like structures on the surfaces of the two rollers. The particle size of the crushed indium tin smelting waste slag is controlled at 1-3mm, and it is discharged into the screen drum through the gathering bucket for further screening. S4. Recycling treatment and treatment of high-hardness indium tin smelting waste slag: If the crushed indium tin smelting waste slag still does not reach the required particle size, it will be scooped up again by the shovel plate and sent to the crushing assembly for secondary crushing until it passes through the screen drum and is discharged; when encountering high-hardness indium tin smelting waste slag, the Mohs hardness of high-hardness indium tin smelting waste slag is ≥5.5, the indium tin smelting waste slag pushes the movable roller to drive the movable plate to move along the guide rail, the moving distance is 5-10mm, and the compression spring increases the distance between the fixed roller and the movable roller to avoid damage to the crushing tooth surface; after the high-hardness indium tin smelting waste slag is crushed, the spring rebounds and pushes the movable roller to reset, ensuring the subsequent crushing work continues; S5. Equipment shutdown and cleaning: After all the indium tin smelting waste slag is processed, turn off the crushing motor first, then turn off the drive motor to stop the equipment, clean the indium tin smelting waste slag remaining inside the equipment, check whether each component is worn or faulty, ensure that the tooth surface wear of the fixed roller and the movable roller is ≤0.3mm, and ensure that the equipment performance is stable when used next time.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, large pieces of indium tin smelting waste slag intercepted by the screen drum can be continuously scooped up by a shovel plate during the rotation of the screen drum and thrown between the fixed roller and the movable roller for crushing. The crushed indium tin smelting waste slag falls into the screen drum for re-screening. If it still does not reach the required particle size, it will be scooped up and crushed again until it passes through the screen drum and is discharged. This realizes multiple crushing treatments of large pieces of indium tin smelting waste slag in the same device until it is crushed to the required particle size. 2. In the present invention, when the indium tin smelting waste slag encounters high-hardness indium tin smelting waste slag during the crushing process, it will generate lateral thrust on the movable roller, pushing the movable plate to compress the spring and slide along the guide rail, so that the distance between the fixed roller and the movable roller is adaptably increased, avoiding the rigid collision between the high-hardness indium tin smelting waste slag and the crushing tooth surface, thereby protecting the crushing tooth surfaces of the fixed roller and the movable roller from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the machine body in the present invention; Figure 3 is a cross-sectional view of the body of the present invention; Figure 4 It is a structural schematic diagram of the feeding hopper in the present invention; Figure 5 Schematic diagram of the structure of the power assembly in the present invention; Figure 6 It is a structural schematic diagram of the screen drum in the present invention; Figure 7 is a cross-sectional view of the screen drum of the present invention; Figure 8 An exploded view of the crushing mechanism of the present invention; Figure 9 Schematic diagram of the structure of the crushing assembly in the present invention; Figure 10 It is a partial structural diagram of the fixing frame in the present invention; Figure 11 Schematic diagram of the structure of the movable plate in the present invention; The meaning of each number in the figure is: 100, machine body; 110, housing; 111, retaining ring; 112, boss; 113, roller; 114, discharge port; 115, discharge hopper; 116, support base; 120, feed hopper; 121, extension hopper; 122, fixing rod; 130, power assembly; 131, seat plate; 132, drive motor; 1321, driving gear; 133, connecting gear; 200, screen drum; 210, fixing ring; 220, gear ring; 230, ring plate; 240, shovel plate; 300, crushing mechanism; 310, crushing assembly; 311, fixed frame; 3111, movable opening; 3112, guide rail; 3113, movable plate; 3114, guide groove; 3115, spring; 312, fixed roller; 313, movable roller; 314, crushing motor; 320, fixed frame; 330, connecting bucket; 340, gathering bucket. DETAILED DESCRIPTION

[0018] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] Example 1 See also Figures 1-9This embodiment provides an efficient recovery and treatment device for indium tin smelting waste slag, including a body 100 as the main component of the equipment, a screen drum 200 as a screening component for indium tin smelting waste slag, and a crushing mechanism 300 for crushing the indium tin smelting waste slag intercepted by the screen drum 200. The body 100 includes a cylindrical casing 110, a feed hopper 120 installed at the rear end of the casing 110, and a power assembly 130 installed at the top position of the front end of the casing 110. The casing 110 is made of high-strength steel with a thickness of 15-20 mm and an inner diameter of 2000-3000 mm, which can provide stable installation support for internal components. The feed hopper 120 is made of wear-resistant cast iron with a bucket mouth size of 1000 mm × 800 mm, which can reduce wear when the indium tin smelting waste slag is put into it. The sieve drum 200 has a mesh-cylinder structure. An extension hopper 121 is connected to the bottom of the feed hopper 120. The bottom of the extension hopper 121 extends into the interior of the sieve drum 200 at an angle of 30-45 degrees. Made of stainless steel, the slanted design guides the indium tin smelting waste slag into the sieve drum 200, preventing it from accumulating at the feed inlet. The feed hopper 120 is fixedly connected to the housing 110 via a fixing rod 122. Made of carbon steel with a diameter of 40-50 mm, the fixing rod 122 firmly supports the feed hopper 120, ensuring its stability when the indium tin smelting waste slag is added. The pulverizing mechanism 300 includes a pulverizing assembly 310 disposed at the center of the sieve drum 200 along its axis.

[0021] like Figure 2 and Figure 3 As shown, in the present invention, annular retaining rings 111 are fixed on the inner walls of the front and rear sides of the casing 110. The width of the retaining rings 111 is 100-150 mm. The retaining rings 111 are welded with steel plates to prevent the indium tin smelting waste slag in the casing 110 from leaking out from the gaps at the front and rear ends. A discharge port 114 is provided at the bottom of the casing 110 between the two retaining rings 111. The size of the discharge port 114 is 800 mm × 500 mm. The top of the discharge hopper 115 covers the bottom of the discharge port 114. The discharge hopper 115 is made of cast iron and has a hopper wall thickness of 20-25 mm. Its structural design facilitates the collection of indium tin smelting waste slag discharged from the discharge port 114. A discharge hopper 115 is fixed on the outer surface of the bottom end of the casing 110, and support bases 116 are fixed at the bottom positions of the front and rear ends of the casing 110. The height of the support base 116 is 600-800mm. The support base 116 is made of cast steel, which can stably support the equipment on the ground and ensure the stability of the equipment during operation.

[0022] like Figure 2 、 Figure 3 and Figure 6As shown, specifically, a plurality of pairs of convex seats 112 are fixed on the inner walls of the front and rear sides of the casing 110 in a circular array with the axis of the casing 110 as the center. The number of convex seats 112 on each side is 8-14 pairs. The convex seats 112 are welded and fixed to the casing 110 to provide a mounting fulcrum for the roller 113. A roller 113 is rotatably connected between each pair of convex seats 112. The diameter of the roller 113 is 80-120 mm. The roller 113 is made of bearing steel, which can reduce the friction when the screen drum 200 rotates. The axis of the roller 113 is parallel to the axis of the casing 110. The roller 113 is parallel to the axis of the casing 110. An annular groove is provided on the outer peripheral surface of 13, and the depth of the annular groove is 20-30 mm. A fixing ring 210 is fixed on the outer peripheral surface of the front and rear ends of the sieve drum 200, and the thickness of the fixing ring 210 is 30-40 mm. The fixing ring 210 is made of stainless steel and is welded and fixed to the sieve drum 200 to enhance the structural strength of the end of the sieve drum 200. The position of the roller 113 corresponds to the position of the fixing ring 210, and the fixing ring 210 extends into the annular groove. This matching method can guide and limit the rotation of the sieve drum 200, thereby ensuring the stable rotation of the sieve drum 200.

[0023] like Figure 1-Figure 3 、 Figure 5 and Figure 6 As shown, further, the screen drum 200 is coaxially sleeved inside the casing 110, and the screen drum 200 is made of high manganese steel, with a wall thickness of 10-15mm and a length of 4000-6000mm. It has good wear resistance and toughness, and its mesh cylinder structure can realize the screening of indium tin smelting waste slag. The power component 130 can drive the screen drum 200 to rotate circumferentially inside the casing 110. The power component 130 includes a seat plate 131 fixedly connected to the casing 110, and the thickness of the seat plate 131 is 20-25mm. The seat plate 131 is made of steel plate and provides an installation foundation for other components of the power component 130, a drive motor 132 installed on the rear end surface of the seat plate 131 and a connecting gear 133 rotatably connected to the bottom position of the front end of the seat plate 131. The number of teeth of the connecting gear 133 is 30-40 teeth. The connecting gear 133 is made of alloy structural steel with high strength and wear resistance, which can ensure the stability of power transmission. The bottom end of the seat plate 131 passes through and extends into the casing 110. The output shaft end of the drive motor 132 is coaxially connected with a driving gear 1321. The number of teeth of the driving gear 1321 is 20-30 teeth. The driving gear 1321 cooperates with the connecting gear 133 to realize power transmission. The driving gear 1321 is meshed with the connecting gear 133. A gear ring 220 is fixed at the front end edge of the outer surface of the sieve drum 200. The number of teeth of the gear ring 220 is 150-200 teeth. The gear ring 220 is welded and fixed to the sieve drum 200, and the sieve drum 200 is driven to rotate by meshing with the connecting gear 133. The bottom of the connecting gear 133 extends into the casing 110 and meshes with the gear ring 220.

[0024] like Figure 6 and Figure 7 As shown, in addition, ring plates 230 are fixed on the inner walls of the front and rear sides of the screen drum 200. The thickness of the ring plates 230 is 15-20 mm. The ring plates 230 are made of steel plates and are welded and fixed to the screen drum 200 to enhance the structural strength of the screen drum 200. A number of shovel plates 240 are fixed between the two ring plates 230. The number of shovel plates 240 is 16-20 and the height is 200-300 mm. The shovel plates 240 are made of wear-resistant steel. Their structural design can shovel up the indium tin smelting waste when the screen drum 200 rotates. The number of shovel plates 240 is distributed in a circular array with the axis of the screen drum 200 as the center. The fine indium tin smelting waste can pass through the screen drum 200 and fall into the casing 110.

[0025] like Figure 1 ,and Figure 8 As shown, it is worth noting that the crushing assembly 310 includes a fixed frame 311, the length of the fixed frame 311 is 2000-3000 mm, the width is 400-600 mm, the fixed frame 311 is a frame structure made of welded steel plates, and provides installation space for the fixed roller 312 and the movable roller 313. The fixed roller 312 rotatably connected to the fixed frame 311 and the movable roller 313 installed in the fixed frame 311 have diameters of 200-300 mm. mm, and a length of 1500-2000 mm. The fixed roller 312 and the movable roller 313 are both made of alloy tool steel. The tooth structure on their surface can effectively crush the indium tin smelting waste slag. The tooth height of the tooth structure is 20-30 mm, and the tooth pitch is 30-40 mm. The fixed roller 312 and the movable roller 313 are coaxially connected to a crushing motor 314. When the screen drum 200 rotates, the indium tin smelting waste slag is scooped up by the shovel plate 240 and thrown between the fixed roller 312 and the movable roller 313.

[0026] like Figure 8 and Figure 9 As shown, it is worth noting that the fixed frame 311 is a hollow rectangular structure, and the top and bottom ends of the fixed frame 311 are transparent. This structural design facilitates the entry and discharge of indium tin smelting waste into and out of the crushing assembly 310. The axial direction of the fixed roller 312 and the movable roller 313 are parallel to the length direction of the fixed frame 311. The outer peripheral surfaces of the fixed roller 312 and the movable roller 313 are both tooth-like structures, which can enhance the crushing effect of indium tin smelting waste.

[0027] like Figure 1 and Figure 8As shown, it should be added that a fixing frame 320 is fixed at both ends of the crushing assembly 310. The cross-sectional size of the fixing frame 320 is 100 mm × 100 mm. The fixing frame 320 is welded from steel and can stably fix the crushing assembly 310 in the casing 110. The two fixing frames 320 are fixedly connected to the front and rear ends of the casing 110 respectively. A connecting bucket 330 is fixed to the top of the fixed frame 311. The upper opening of the connecting bucket 330 has a size of 800mm×500mm. The connecting bucket 330 is made of stainless steel and can guide the indium tin smelting waste slag scooped up by the shovel plate 240 to between the fixed roller 312 and the movable roller 313. The connecting bucket 330 is used to receive the indium tin smelting waste slag scooped up by the shovel plate 240. A gathering bucket 340 is fixed to the bottom end of the fixed frame 311. The lower opening of the gathering bucket 340 has a size of 400mm×250mm. The gathering bucket 340 is made of stainless steel and is used to discharge the indium tin smelting waste slag crushed by the crushing assembly 310 into the screen drum 200.

[0028] When the indium tin smelting waste residue efficient recovery and treatment equipment of this embodiment is used, first, the indium tin smelting waste residue is put into the feed hopper 120, and the indium tin smelting waste residue enters the screen drum 200 through the extension bucket 121; then, the driving motor 132 is started, and the screen drum 200 is driven to rotate through the engagement of the driving gear 1321, the connecting gear 133 and the gear ring 220. During the rotation of the screen drum 200, the fine indium tin smelting waste residue passes through the screen drum 200 and falls into the housing 110, and is then discharged through the discharge port 114 and the discharge hopper 115; then, the screen drum 200 is sieved. The shovel plate 240 in the drum 200 rotates with the screen drum 200 to scoop up large pieces of indium tin smelting waste slag and throw them into the connecting bucket 330, and then enters between the fixed roller 312 and the movable roller 313. At this time, the crushing motor 314 is started, and the fixed roller 312 and the movable roller 313 rotate to crush the large pieces of indium tin smelting waste slag; finally, the crushed indium tin smelting waste slag falls into the screen drum 200 through the gathering bucket 340 and is screened again. The indium tin smelting waste slag that does not meet the particle size requirements will be scooped up and crushed again until it passes through the screen drum 200 and is discharged.

[0029] Example 2 In order to avoid the indium tin smelting waste slag from rigidly colliding with the crushing tooth surface when the crushing mechanism 300 crushes the high-hardness indium tin smelting waste slag, the crushing tooth surface of the fixed roller and the movable roller is protected from damage. Figures 8-11As shown, the fixed roller 312 is rotatably connected to the left side of the fixed frame 311, and the crushing motor 314 coaxially connected to the fixed roller 312 is installed at the front end of the fixed frame 311. The right sides of the front and rear ends of the fixed frame 311 are both provided with movable openings 3111. The length of the movable opening 3111 is 400-600mm and the width is 200-300mm. The movable opening 3111 provides space for the movement of the movable plate 3113. The top and bottom ends of the movable opening 3111 are both provided with protruding guide rails 3112. The cross-sectional dimensions of the guide rails 3112 are 40mm×40mm. m, the length is 300-400mm, the guide rail 3112 and the fixed frame 311 are integrally formed, which can guide the movement of the movable plate 3113, and the movable plate 3113 is slidably connected in the movable opening 3111. The thickness of the movable plate 3113 is 20-25mm, the length is 350-500mm, and the width is 180-250mm. The movable plate 3113 is made of steel plate and provides installation support for the movable roller 313. The movable roller 313 is rotatably connected between the two movable plates 3113, and the crushing motor 314 coaxially connected to the movable roller 313 is installed in the front On the movable plate 3113 at the side position, guide grooves 3114 are provided at both the top and bottom ends of the movable plate 3113. The depth of the guide grooves 3114 is 20-30 mm and the width is 42-46 mm. The guide grooves 3114 cooperate with the guide rails 3112 to ensure that the movable plate 3113 moves smoothly. The two guide rails 3112 extend into the two guide grooves 3114 respectively. The width of the movable opening 3111 is greater than the width of the movable plate 3113. The difference between the widths is 20-30 mm, which leaves enough space for the movement of the movable plate 3113. The right end face of the movable plate 3113 is There are several holes, the number of which is 2-5 and the diameter is 20-25 mm. A spring 3115 is installed in the hole. The diameter of the spring 3115 is 18-22 mm, the free length is 150-200 mm, and the stiffness coefficient is 30-40 N / mm. The spring 3115 is a cylindrical coil spring made of spring steel. It can make the movable roller 313 adapt to indium tin smelting waste slag of different hardness through its own elastic deformation. The right end of the spring 3115 is against the right inner wall of the movable opening 3111. The spring 3115 is in a compressed state, and the initial compression amount is 30-50 mm.

[0030] When the high-efficiency recovery and treatment equipment for indium tin smelting waste of this embodiment is in use, when high-hardness indium tin smelting waste enters between the fixed roller 312 and the movable roller 313, a lateral thrust is generated on the movable roller 313, and the movable roller 313 drives the movable plate 3113 to move to the right along the guide rail 3112. The movable plate 3113 compresses the spring 3115, thereby increasing the distance between the fixed roller 312 and the movable roller 313, thereby avoiding a rigid collision between the high-hardness indium tin smelting waste and the crushing tooth surface; when the high-hardness indium tin smelting waste is crushed, the spring 3115 rebounds and pushes the movable plate 3113 to reset, and the movable roller 313 also resets, and continues to crush the subsequent indium tin smelting waste.

[0031] Example 3 The present invention also provides a method for efficiently recycling and treating indium tin smelting waste residue, which uses the above-mentioned efficient recycling and treating equipment for indium tin smelting waste residue, comprising the following steps: S1. Equipment preparation and input of indium tin smelting waste slag: Check that all equipment components are securely connected, ensuring that the housing 110, screen drum 200, crushing mechanism 300, and other components are in normal condition. Verify that the mesh diameter of the screen drum 200 is 1.5-2.5mm and that the initial spacing between the fixed roller 312 and the movable roller 313 is 8-12mm. Feed the indium tin smelting waste slag to be processed from the feed hopper 120. The initial particle size of the indium tin smelting waste slag should not exceed 300mm, and the moisture content should be controlled at 8-12%. The indium tin smelting waste slag is guided by the stainless steel extension hopper 121 and smoothly enters the screen drum 200 to avoid accumulation at the feed port. S2. Screening and power drive start: The drive motor 132 in the power assembly 130 is started. The power of the drive motor 132 is 15-25 kW, and the speed is set to 30-50 r / min. The drive motor 132 drives the screen drum 200 to rotate circumferentially inside the housing 110 through the meshing transmission of the driving gear 1321, the connecting gear 133, and the gear ring 220. During the rotation of the screen drum 200, its high-manganese steel mesh structure screens the indium tin smelting waste slag. The fine indium tin smelting waste slag with a particle size of ≤2 mm passes through the screen drum 200 and falls into the housing 110. It is finally discharged and collected through the discharge port 114 and the cast iron discharge hopper 115. S3. Shoveling and crushing of large pieces of indium tin smelting waste slag: When the screen drum 200 rotates, the wear-resistant steel shovel plate 240 inside it rotates synchronously with the screen drum 200, scooping up the large pieces of indium tin smelting waste slag intercepted by the screen drum 200. The large pieces of indium tin smelting waste slag with a particle size greater than 2 mm are delivered to the stainless steel connecting bucket 330 at the top of the fixed frame 311. By starting the two crushing motors 314 with a power of 20-30 kW and a set speed of 600-900 r / min, the two crushing motors 314 respectively drive the fixed roller 312 and the movable roller 313 to rotate, so that the large pieces of indium tin smelting waste slag entering between the fixed roller 312 and the movable roller 313 are crushed by the tooth-like structures on the surfaces of the fixed roller 312 and the movable roller 313. The particle size of the crushed indium tin smelting waste slag is controlled to be 1-3 mm, and the crushed indium tin smelting waste slag is discharged into the screen drum 200 through the collecting bucket 340 for further screening. S4. Recycling treatment and treatment of high-hardness indium tin smelting waste slag: If the crushed indium tin smelting waste slag still does not reach the required particle size, it will be scooped up again by the shovel plate 240 and sent to the crushing assembly 310 for secondary crushing until it passes through the screen drum 200 and is discharged. When encountering high-hardness indium tin smelting waste slag, the Mohs hardness of high-hardness indium tin smelting waste slag is ≥5.5. The indium tin smelting waste slag pushes the movable roller 313 to drive the movable plate 3113 to move along the guide rail 3112, and the movement distance is 5-10mm. The compression spring 3115 increases the distance between the fixed roller 312 and the movable roller 313 to avoid damage to the crushing tooth surface. After the high-hardness indium tin smelting waste slag is crushed, the spring 3115 rebounds and pushes the movable roller 313 to return to its original position, ensuring that the subsequent crushing work continues. S5. Equipment shutdown and cleaning: After all the indium tin smelting waste slag is processed, first turn off the crushing motor 314, then turn off the drive motor 132, stop the equipment, clean the indium tin smelting waste slag remaining inside the equipment, check whether each component is worn or faulty, ensure that the tooth surface wear of the fixed roller 312 and the movable roller 313 is ≤0.3mm, and ensure that the equipment performance is stable when used next time.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient recovery and treatment equipment for indium tin smelting waste residue, characterized in that: include: A machine body (100), the machine body (100) serving as a main component of the device, the machine body (100) comprising a cylindrical casing (110), a feed hopper (120) mounted at the rear end of the casing (110), and a power assembly (130) mounted at the top of the front end of the casing (110), a discharge hopper (115) being fixed on the outer peripheral surface of the bottom end of the casing (110); A sieve drum (200), the sieve drum (200) serving as a screening component for indium tin smelting waste slag, the sieve drum (200) being a mesh-cylinder structure, the sieve drum (200) being coaxially sleeved inside the housing (110), the power assembly (130) being capable of driving the sieve drum (200) to rotate circumferentially inside the housing (110), annular plates (230) being fixed on both front and rear inner walls of the sieve drum (200), a plurality of shovel plates (240) being fixed between two of the annular plates (230), the plurality of shovel plates (240) being distributed in an annular array with the axis of the sieve drum (200) as the center, and fine indium tin smelting waste slag being able to pass through the sieve drum (200) and fall into the housing (110); A pulverizing mechanism (300) is used to pulverize the indium tin smelting waste slag intercepted by the sieve drum (200). The pulverizing mechanism (300) includes a pulverizing assembly (310) arranged at the center of the sieve drum (200) along the axis of the sieve drum (200). The pulverizing assembly (310) includes a fixed frame (311), a fixed roller (312) rotatably connected to the fixed frame (311), and a movable roller (313) installed in the fixed frame (311). A pulverizing motor (314) is coaxially connected to the fixed roller (312) and the movable roller (313). When the sieve drum (200) rotates, the shovel plate (240) scoops up the indium tin smelting waste slag and delivers it between the fixed roller (312) and the movable roller (313).

2. The high-efficiency recovery and treatment equipment for indium tin smelting waste slag according to claim 1, characterized in that: Annular retaining rings (111) are fixed to the inner walls of both the front and rear sides of the casing (110), a discharge port (114) is provided at the bottom of the casing (110) between the two retaining rings (111), and the top end of the discharge hopper (115) covers the bottom of the discharge port (114).

3. The high-efficiency recovery and treatment equipment for indium tin smelting waste slag according to claim 1, characterized in that: A plurality of pairs of bosses (112) are fixed on the inner walls of the front and rear sides of the casing (110) in a circular array with the axis of the casing (110) as the center. A roller (113) is rotatably connected between each pair of bosses (112). The axis of the roller (113) is parallel to the axis of the casing (110). An annular groove is provided on the outer peripheral surface of the roller (113). A fixing ring (210) is fixed on the outer peripheral surface of the front and rear ends of the screen drum (200). The position of the roller (113) corresponds to the position of the fixing ring (210), and the fixing ring (210) extends into the annular groove.

4. The high-efficiency recovery and treatment equipment for indium tin smelting waste slag according to claim 1, characterized in that: The bottom end of the feed hopper (120) is connected to an extension hopper (121), and the bottom end of the extension hopper (121) extends obliquely into the interior of the screen drum (200). The feed hopper (120) is fixedly connected to the housing (110) via a fixing rod (122).

5. The high-efficiency recovery and treatment equipment for indium tin smelting waste slag according to claim 1, characterized in that: The power assembly (130) includes a base plate (131) fixedly connected to the housing (110), a driving motor (132) mounted on the rear end surface of the base plate (131), and a connecting gear (133) rotatably connected to the bottom position of the front end of the base plate (131), the bottom end of the base plate (131) penetrates and extends into the housing (110), the output shaft end of the driving motor (132) is coaxially connected to a driving gear (1321), the driving gear (1321) and the connecting gear (133) are meshed, and a gear ring (220) is fixed at the front end edge of the outer surface of the screen drum (200), and the bottom of the connecting gear (133) extends into the housing (110) and meshes with the gear ring (220).

6. The high-efficiency recovery and treatment equipment for indium tin smelting waste slag according to claim 1, characterized in that: The fixed frame (311) is a hollow rectangular parallelepiped structure, the top and bottom ends of the fixed frame (311) are transparent, the axial directions of the fixed roller (312) and the movable roller (313) are parallel to the length direction of the fixed frame (311), and the outer peripheral surfaces of the fixed roller (312) and the movable roller (313) are both tooth-shaped structures.

7. The high-efficiency recovery and treatment equipment for indium tin smelting waste slag according to claim 1, characterized in that: The fixed roller (312) is rotatably connected to the left side of the fixed frame (311). The crushing motor (314) coaxially connected to the fixed roller (312) is installed at the front end of the fixed frame (311). The fixed frame (311) is provided with movable openings (3111) at the right sides of the front and rear ends. The top and bottom ends of the movable opening (3111) are provided with protruding guide rails (3112). A movable plate (3113) is slidably connected to the movable opening (3111). The movable roller (313) is rotatably connected between the two movable plates (3113) and is coaxially connected to the movable roller (313). The crushing motor (314) is mounted on the movable plate (3113) at the front side, and guide grooves (3114) are provided at both the top and bottom ends of the movable plate (3113), and the two guide rails (3112) extend into the two guide grooves (3114) respectively. The width of the movable opening (3111) is greater than the width of the movable plate (3113), and a plurality of sleeve holes are provided on the right end surface of the movable plate (3113), and a spring (3115) is sleeved in the sleeve hole. The right end of the spring (3115) is against the right inner wall of the movable opening (3111), and the spring (3115) is in a compressed state.

8. The high-efficiency recovery and treatment equipment for indium tin smelting waste slag according to claim 1, characterized in that: Fixing frames (320) are fixed to both ends of the crushing assembly (310), and the two fixing frames (320) are fixedly connected to the front and rear ends of the casing (110) respectively.

9. The high-efficiency recovery and treatment equipment for indium tin smelting waste slag according to claim 1, characterized in that: A connecting bucket (330) is fixed to the top of the fixed frame (311), and the connecting bucket (330) is used to receive the indium tin smelting waste shoveled by the shovel plate (240). A gathering bucket (340) is fixed to the bottom of the fixed frame (311), and the gathering bucket (340) is used to discharge the indium tin smelting waste slag crushed by the crushing assembly (310) into the screen drum (200).

10. A method for efficiently recycling and treating indium tin smelting waste residue, using the efficient recycling and treating equipment for indium tin smelting waste residue according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Equipment preparation and input of indium tin smelting waste slag: Check whether the connections of the various components of the equipment are stable, ensure that the housing (110), the screen drum (200), the crushing mechanism (300) and other components are in normal condition, confirm that the sieve hole diameter of the screen drum (200) is 1.5-2.5 mm, and the initial spacing between the fixed roller (312) and the movable roller (313) is 8-12 mm, and the indium tin smelting waste slag to be processed is put into the feed hopper (120), the initial particle size of the indium tin smelting waste slag does not exceed 300 mm, and the moisture content is controlled at 8-12%. The indium tin smelting waste slag is guided by the stainless steel extension hopper (121) and smoothly enters the inside of the screen drum (200) to avoid accumulation at the feed port; S2. Screening and power drive start: The driving motor (132) in the power assembly (130) is started. The power of the driving motor (132) is 15-25 kW, and the speed is set to 30-50 r / min. The driving motor (132) drives the screen drum (200) to rotate circumferentially inside the housing (110) through the meshing transmission of the driving gear (1321), the connecting gear (133) and the gear ring (220). During the rotation of the screen drum (200), the high manganese steel mesh drum structure of the screen drum screens the indium tin smelting waste slag. The fine indium tin smelting waste slag with a particle size of ≤2 mm passes through the screen drum (200) and falls into the housing (110). Finally, the waste slag is discharged and collected through the discharge port (114) and the cast iron discharge hopper (115); S3. Shoveling and crushing of large pieces of indium tin smelting waste slag: When the screen drum (200) rotates, the wear-resistant steel shovel plate (240) inside the screen drum (200) rotates synchronously with the screen drum (200), scooping up the large pieces of indium tin smelting waste slag intercepted by the screen drum (200), the large pieces of indium tin smelting waste slag having a particle size of >2 mm, and delivering them to the stainless steel connecting bucket (330) at the top of the fixed frame (311), and starting the two crushing motors (314), the power of the crushing motors (314) being 20-30 kW, and the speed being set at 600-900 r / min, so that the two crushing motors (314) respectively drive the fixed roller (312) and the movable roller (313) to rotate, so that the large pieces of indium tin smelting waste slag entering between the fixed roller (312) and the movable roller (313) are crushed by the tooth-like structures on the surfaces of the two rollers, and the particle size of the crushed indium tin smelting waste slag is controlled to be 1-3 mm, and the crushed indium tin smelting waste slag is concentratedly discharged into the screen drum (200) through the gathering bucket (340) for further screening; S4. Recycling treatment and treatment of high-hardness indium tin smelting waste slag: If the crushed indium tin smelting waste slag still does not reach the required particle size, it will be scooped up again by the shovel plate (240) and sent to the crushing assembly (310) for secondary crushing until it passes through the screen drum (200) and is discharged; when encountering high-hardness indium tin smelting waste slag, the Mohs hardness of the high-hardness indium tin smelting waste slag is ≥5.5, the indium tin smelting waste slag pushes the movable roller (313) to drive the movable plate (3113) to move along the guide rail (3112), the moving distance is 5-10mm, and the compression spring (3115) increases the distance between the fixed roller (312) and the movable roller (313) to avoid damage to the crushed tooth surface; after the high-hardness indium tin smelting waste slag is crushed, the spring (3115) rebounds to push the movable roller (313) to reset, ensuring that the subsequent crushing work continues; S5. Equipment shutdown and cleaning: After all the indium tin smelting waste slag is processed, the crushing motor (314) is turned off first, and then the drive motor (132) is turned off to stop the equipment. The indium tin smelting waste slag remaining inside the equipment is cleaned, and each component is checked for wear or failure. It is ensured that the tooth surface wear of the fixed roller (312) and the movable roller (313) is ≤0.3 mm to ensure that the equipment performance is stable when it is used next time.

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