Multi-metal waste residue safety recovery device

Abstract

The invention relates to the field of metal waste recovery treatment, in particular to a multi-metal waste residue safety recovery device which comprises a reaction kettle and a material containing barrel, treatment liquid is placed in the reaction kettle, the material containing barrel is installed at the bottom of a sealing cover and comprises a rotary barrel and a rotary pipe, and a communication groove for treatment and circulation is formed in the side face of the rotary barrel. An intermittent discharging assembly and a first stirring assembly are arranged at the upper end of the rotary cylinder, a plurality of second stirring assemblies are arranged at the lower end of the rotary cylinder at intervals in the vertical direction, a screening net is correspondingly arranged at the bottom of each second stirring assembly, the hole diameters of the multiple screening nets are sequentially reduced from top to bottom, and the screening nets are driven by a vibration assembly to synchronously vibrate. Treated metal waste residues can intermittently fall into the multiple sets of screening nets from the intermittent discharging assembly to be reacted, meanwhile, when the second stirring assembly conducts stirring, treatment liquid far away from the interior of the reaction kettle and away from the containing barrel can be pumped into the containing barrel to be reacted, and the reaction efficiency of the metal waste residues is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of metal waste recycling and treatment, and specifically to a multi-metal waste residue safe recycling device. Background Art

[0002] During the smelting process of metals from ores or waste recyclables, after the main metal is extracted, other metals and impurities cannot be completely separated and finally enter the waste residue. There will also be other useful metals remaining in the waste residue. Extracting such multi-metal waste residues can reduce a certain amount of resource waste. When recycling and treating multi-metal waste residues currently, a certain treatment liquid is usually added, and the metal in the metal waste residue reacts with the treatment liquid to convert the metal into metal ions and dissolve them in the treatment liquid for effective separation from the impurities.

[0003] Generally, the metal waste residue to be treated is poured into a treatment barrel for centralized soaking treatment. At the same time, in order to improve the reaction rate between the metal waste residue and the treatment liquid, a second stirrer is often used to stir the metal waste residue in the treatment barrel, thereby increasing the contact area between the second stirrer and the treatment liquid. However, when the above method is actually implemented, due to the large mass of the metal waste residue, the metal waste residue still remains at the bottom of the treatment barrel as a whole during the stirring of the second stirrer, and the metal waste residue cannot be fully scattered in the treatment barrel to react with the treatment liquid. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-metal waste residue safe recycling device to solve the above technical problems. To achieve the above purpose, the present invention provides a multi-metal waste residue safe recycling device, including a reaction kettle and a material storage barrel. The reaction kettle is fixedly installed on the ground through two groups of support legs, and a liquid discharge port is arranged at its bottom. Its upper opening is sealed by a sealing cover, and the sealing cover is driven by a lifting component at the top of the reaction kettle to lift and lower. The material storage barrel is installed at the bottom of the sealing cover and includes a rotary cylinder and a rotary pipe. The rotary cylinder is rotatably installed at the bottom of the sealing cover and is driven by a rotary component on the sealing cover to rotate. The rotary pipe is coaxially arranged at the center of the rotary cylinder; A communication groove for the flow of the treatment liquid is provided on the side surface of the rotary cylinder. An intermittent discharging assembly and a first stirring assembly are arranged at the upper end of the rotary cylinder. A plurality of groups of second stirring assemblies are arranged at intervals along the vertical direction at the lower end of the rotary cylinder. Each group of second stirring assemblies includes a plurality of groups of second stirrers. The plurality of groups of second stirrers on the same layer are arranged circumferentially in the rotary cylinder along the circumference of the rotary tube, and their two ends are respectively rotatably installed on the rotary cylinder and the rotary tube. An infusion channel for the treatment liquid to pass through is provided in the second stirrer, and liquid discharge holes for the treatment liquid to be discharged are provided on its body. One end of the plurality of groups of second stirrers inserted into the rotary tube is in transmission connection with a fixed shaft in the rotary tube through a transmission assembly. One end of the second stirrer extending out of the rotary cylinder is communicated with a liquid delivery pipe outside the rotary cylinder. The end of the stirring shaft of the second stirrer is coaxially and fixedly connected with a screw rod in the liquid delivery pipe. A group of screening meshes are correspondingly arranged at the bottom of each group of second stirring assemblies. The apertures of the plurality of groups of screening meshes decrease sequentially from top to bottom, and adjacent screening meshes are fixedly connected through connecting columns. Moreover, the screening meshes are in transmission connection with the reaction kettle through a vibration assembly; When the rotary cylinder rotates, it drives the first stirring assembly to stir the metal waste residue at the upper end of the intermittent discharging assembly, and drives the plurality of groups of second stirrers to rotate through the transmission assembly, and drives the plurality of groups of screening meshes to vibrate reciprocally through the vibration assembly.

[0005] As a further scheme of the present invention, the lifting assembly includes a plurality of guide columns, a driving screw rod and a first motor; The upper ends of the plurality of guide columns are fixedly installed on the sealing cover, and the lower column bodies thereof are slidably connected with guide holes opened on the upper side of the reaction kettle. The upper end of the driving screw rod is rotatably installed on the sealing cover and is driven to rotate by a first motor correspondingly arranged on the sealing cover. A fixed internal nut in threaded connection with the corresponding driving screw rod is provided on the upper side of the reaction kettle.

[0006] As a further scheme of the present invention, an air exchange exhaust pipe and a feeding guide groove are arranged on the sealing cover; The air exchange exhaust pipe is communicated with an air exchange hole on the sealing cover. The feeding guide groove is communicated with a feeding port at the center of the sealing cover, and its top is sealed by a sealing flip cover.

[0007] As a further scheme of the present invention, the rotary assembly includes a rotary gear ring, a driving gear and a second motor; The rotary gear ring is coaxially and fixedly installed on the outside of the rotary cylinder. The driving gear is arranged on one side of the rotary gear ring and is meshed and connected with the rotary gear ring. The second motor is fixedly installed on the sealing cover and is used to drive the driving gear to rotate.

[0008] As a further scheme of the present invention, the intermittent rotation assembly includes a fixed bottom support and a rotary sealing plate; The fixed base includes a fixed pipe and multiple groups of base plates. The fixed base is rotatably installed outside the rotary pipe, and its upper end is fixedly connected to the sealing cover. Multiple groups of base plates are fixedly installed at the bottom of the fixed pipe. There is a feeding opening for the metal waste residue to fall between adjacent base plates. Both ends of the rotary sealing plate are fixedly connected to the rotary pipe and the rotary cylinder, and the rotary sealing plate can seal the feeding opening.

[0009] As a further aspect of the present invention, the first stirring assembly includes multiple groups of stirring claws. The multiple groups of stirring claws are evenly arranged along the circumferential direction of the rotary cylinder, and one end of the stirring claw is fixedly connected to the inner wall of the rotary cylinder.

[0010] As a further aspect of the present invention, the second stirrer includes a stirring shaft and multiple groups of stirring columns. There are stirring branch pipes communicated with the liquid infusion channel in the stirring shaft in the multiple groups of stirring columns.

[0011] As a further aspect of the present invention, the transmission assembly includes a fixed bevel gear and multiple groups of transmission bevel gears; The fixed bevel gear is coaxially installed outside the fixed shaft, and multiple groups of transmission bevel gears are coaxially installed at the ends of the corresponding stirring shafts and are in meshing transmission with the fixed bevel gear.

[0012] As a further aspect of the present invention, the liquid delivery pipe is fixedly installed outside the rotary, and a liquid inlet is provided at the end away from the rotary cylinder.

[0013] As a further aspect of the present invention, the vibration assembly includes a transmission rod, a return spring, a sliding guide wheel, and a fixed ring; Multiple groups of transmission rods are fixedly installed at the bottom of the connecting column. The return spring is wound around the rod body of the transmission rod for elastically driving the transmission rod and the rotary cylinder. The sliding guide wheel is rotatably installed at the bottom of the transmission rod, and the fixed ring is fixedly installed at the bottom of the reaction kettle. A wavy support surface for the sliding guide wheel to slide is provided on its upper side end face.

[0014] Compared with the prior art, the advantages of the present invention are as follows: [[ID=2,4]]1. By connecting the material storage cylinder with the sealing cover at the upper end of the reaction kettle, when the operator puts the metal waste, the lifting assembly drives the sealing cover and the material storage cylinder at its bottom to move upward, and keeps the intermittent discharging assembly in the material storage cylinder above the liquid level of the treatment liquid, so as to avoid the metal waste residue contacting the treatment liquid and generating gas during the process of placing the metal waste residue into the material storage cylinder, which affects the feeding of the operator. When the sealing cover descends and the metal waste residue contacts the treatment liquid for reaction, the chemical gas generated by the reaction can be discharged into the ventilation exhaust pipe through the ventilation holes on the sealing cover for unified collection and treatment; 2. The rotation of the rotary cylinder drives the bottom support plate and the rotary seal plate in the intermittent discharging assembly to intermittently stagger, so that when the metal waste residue on the intermittent discharging assembly participates in the reaction, it is intermittently discharged into the screening net at the bottom, avoiding the accumulation of metal waste residue on the first-layer screening net and affecting the vibration of the screening net. 3. During the reaction, due to the reduction of its particle size, the fully reacted metal waste residue is screened through the mesh holes on the screening net into the next-layer screening net and continues to react until the metal waste residue is completely reacted. Thus, the metal waste residue participates in the reaction on each layer of the screening net. 4. When the different layers of the processing liquid react, the second stirrer rotates synchronously with the rotary cylinder during its rotation, stirring the metal waste residue in the vibrating state of the screening net. At the same time, when the stirring shaft of the second stirrer rotates, it can suck the processing liquid far away from the rotary cylinder in the reaction kettle into the feeding port of the liquid delivery pipe and finally inject it into the rotary cylinder through the stirring branch pipe to participate in the reaction of the metal waste residue, improving the flow of the processing liquid in the reaction kettle. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a multi-metal waste residue safe recycling device in the present invention.

[0016] Figure 2 It is an internal structure diagram of the reaction kettle in the present invention.

[0017] Figure 3 It is an internal structure diagram of the material storage cylinder in the present invention.

[0018] Figure 4 In the present invention Figure 3 An enlarged schematic view of part A.

[0019] Figure 5 In the present invention Figure 3 An enlarged schematic view of part B. [[ID=3 and]]

[0020] In the attached drawings: 1. Reaction kettle; 2. Support leg; 3. Sealing cover; 4. Rotary assembly; 401. Second motor; 402. Driving gear; 403. Rotary gear ring; 5. Feed guide groove; 501. Sealing flap; 6. Ventilation exhaust pipe; 7. Lifting assembly; 701. Driving screw; 702. First motor; 703. Fixed internal nut; 704. Guide post; 8. Material storage cylinder; 801. Rotary cylinder; 802. Rotary pipe; 9. Liquid delivery pipe; 10. Stirring claw; 11. Intermittent discharging assembly; 1101. Fixed pipe; 1102. Bottom support plate; 1103. Rotary sealing plate; 12. Transmission assembly; 1201. Fixed bevel gear; 1202. Transmission bevel gear; 13. Second stirrer; 1301. Stirring shaft; 1302. Stirring column; 14. Screw rod; 15. Screening mesh; 16. Vibration assembly; 1601. Transmission rod; 1602. Return spring; 1603. Sliding guide wheel; 1604. Fixed ring; 17. Fixed shaft. Detailed implementation manners

[0021] The technical solutions of the present invention will be further described in detail below in conjunction with the detailed implementation manners.

[0022] Such as Figure 1 , Figure 2 and Figure 3As shown, in an embodiment of the present invention, a multi-metal waste residue safety recovery device includes a reaction kettle 1 and a material storage cylinder 8. The reaction kettle 1 is fixedly installed on the ground through two sets of support legs 2, and a liquid discharge port is provided at its bottom. Its upper end opening is sealed by a sealing cover 3. The sealing cover 3 is driven to lift by a lifting assembly 7 at the top of the reaction kettle 1. The material storage cylinder 8 is installed at the bottom of the sealing cover 3, and it includes a rotary cylinder 801 and a rotary pipe 802. The rotary cylinder 801 is rotatably installed at the bottom of the sealing cover 3 and is driven to rotate by a rotary assembly 4 on the sealing cover 3. The rotary pipe 802 is coaxially arranged at the center of the rotary cylinder 801. A communication groove for the treatment liquid to flow through is provided on the side surface of the rotary cylinder 801. An intermittent discharging assembly 11 and a first stirring assembly are provided at the upper end of the rotary cylinder 801. A plurality of groups of second stirring assemblies are arranged at intervals along the vertical direction at the lower end of the rotary cylinder 801. Each group of second stirring assemblies includes a plurality of second stirrers 13. The plurality of second stirrers 13 on the same layer are arranged circumferentially around the rotary pipe 802 in the rotary cylinder 801, and their two ends are respectively rotatably installed on the rotary cylinder 801 and the rotary pipe 802. An infusion channel for the treatment liquid to pass through is provided in the second stirrer 13, and liquid discharge holes for the treatment liquid to be discharged are provided on its body. One end of the plurality of second stirrers 13 inserted into the rotary pipe 802 is in transmission connection with a fixed shaft 17 in the rotary pipe 802 through a transmission assembly 12. One end of the second stirrer 13 extending out of the rotary cylinder 801 is communicated with a liquid delivery pipe 9 outside the rotary cylinder 801. The end of the stirring shaft 1301 of the second stirrer 13 is coaxially fixedly connected with a screw rod 14 in the liquid delivery pipe 9. A set of screening nets 15 is correspondingly provided at the bottom of each group of second stirring assemblies. The apertures of the plurality of screening nets 15 gradually decrease from top to bottom, and adjacent screening nets 15 are fixedly connected by connecting columns. Moreover, the screening nets 15 are in transmission connection with the reaction kettle 1 through a vibration assembly 16. When the rotary cylinder 801 rotates, it drives the first stirring assembly to stir the metal waste residue at the upper end of the intermittent discharging assembly 11, and drives the plurality of second stirrers 13 to rotate through the transmission assembly 12, and drives the plurality of screening nets 15 to vibrate reciprocally through the vibration assembly 16.

[0023] As Figure 1As shown in the figure, in the embodiment of the present invention, the lifting assembly 7 includes multiple groups of guide columns 704, a driving screw 701, and a first motor 702. The upper ends of the multiple groups of guide columns 704 are fixedly installed on the sealing cover 3, and the lower column bodies thereof are slidably connected to the guide holes opened on the upper side of the reaction kettle 1. The upper end of the driving screw 701 is rotatably installed on the sealing cover 3 and is driven to rotate by the first motor 702 correspondingly arranged on the sealing cover 3. A fixed internal nut 703 threadedly connected to the corresponding driving screw is provided on the upper side of the reaction kettle 1. When the present invention realizes the up and down movement of the sealing cover 3, two first motors 702 are started to drive the two corresponding driving screws 701 and the fixed internal nut 703 to perform screw drive, driving the driving screw 701 and the sealing cover 3 to move in the vertical direction. At the same time, the two groups of guide columns 704 located on both sides of the sealing cover 3 are slidably connected to the corresponding guide holes when the sealing cover 3 is lifted and lowered, guiding and positioning the movement of the sealing cover 3. Among them, the lifting assembly 7 can also be replaced with other components having the same function, such as selecting a telescopic cylinder to drive the driving screw 701 of the present invention.

[0024] As Figure 1 and Figure 2 As shown in the figure, in the embodiment of the present invention, a ventilation exhaust pipe 6 and a feed guide groove 5 are provided on the sealing cover 3. The ventilation exhaust pipe 6 is communicated with the ventilation holes on the sealing cover 3, and the feed guide groove 5 is communicated with the feed port in the center of the sealing cover 3, and its top is sealed by a sealing flip cover 501. In the present invention, after the operator finishes the entry of the metal waste residue, the feed port in the center of the sealing cover 3 can be sealed by the sealing flip cover 501, so that when the sealing cover 3 descends, the chemical gas generated by the contact between the metal waste residue in the material storage cylinder 8 and the treatment liquid can be discharged into the ventilation exhaust pipe 6 through the ventilation holes for unified collection and treatment, avoiding the leakage of reaction gas into the environment.

[0025] As Figure 2 , Figure 3 and Figure 4 As shown in the figure, in the embodiment of the present invention, the rotary assembly 4 includes a rotary gear ring 403, a driving gear 402, and a second motor 401. The rotary gear ring 403 is coaxially and fixedly installed on the outer side of the rotary cylinder 801. The driving gear 402 is arranged on one side of the rotary gear ring 403 and is meshed and connected with the rotary gear ring 403. The second motor 401 is fixedly installed on the sealing cover 3 and is used to drive the driving gear 402 to rotate. When the sealing cover 3 descends to the lowest position, the second motor 401 can be started at this time to drive the driving gear 402 to rotate, and the rotary gear ring 403 is engaged and driven to drive the rotary cylinder 801 to rotate continuously; Further, the intermittent rotation assembly includes a fixed base and a rotary sealing plate 1103. The fixed base includes a fixed pipe 1101 and multiple groups of base plates 1102. The fixed base is rotatably installed on the outside of the rotary pipe 802, and its upper end is fixedly connected to the sealing cover 3. Multiple groups of base plates 1102 are fixedly installed at the bottom of the fixed pipe 1101. A blanking opening for the metal waste residue to fall is provided between adjacent base plates 1102. Both ends of the rotary sealing plate 1103 are fixedly connected to the rotary pipe 802 and the rotary cylinder 801. The rotary sealing plate 1103 can seal the blanking opening. When the rotary cylinder 801 rotates, it drives multiple groups of rotary sealing plates 1103 at the bottom of the base plates 1102 to rotate. When the rotary sealing plate 1103 rotates to the bottom of the base plate 1102, the blanking opening is in an open state at this time, and the metal waste residue on the upper part of the fixed base can fall to the bottom through the blanking opening. When the rotary sealing plate 1103 rotates to the bottom of the blanking opening, the rotary sealing plate 1103 continues to seal the blanking opening at this time, so that the metal waste residue cannot fall further. The intermittent opening and closing of the blanking opening is realized by the rotation of the rotary cylinder 801, so as to ensure that the metal waste residue in the intermittent rotation assembly is intermittently conveyed to the screening mesh 15 at the bottom for further reaction, and to avoid a large amount of metal waste residue being conveyed to the screening mesh 15 at one time, which affects the vibration reaction effect of the screening mesh 15; Still further, the first stirring assembly includes multiple groups of stirring claws 10. The multiple groups of stirring claws 10 are uniformly arranged along the circumferential direction of the rotary cylinder 801, and one end of the stirring claw 10 is fixedly connected to the inner wall of the rotary cylinder 801. When the rotary cylinder 801 rotates, the multiple groups of stirring claws 10 can synchronously stir and mix the metal waste residue on the intermittent rotation assembly, so that it can further react with the upper treatment liquid and assist the metal waste residue to fall through the blanking opening.

[0026] Such as Figure 3 and Figure 4 As shown, in the embodiment of the present invention, the second stirrer 13 includes a stirring shaft 1301 and multiple groups of stirring columns 1302. A stirring branch pipe communicating with the liquid infusion channel in the stirring shaft 1301 is provided in the multiple groups of stirring columns 1302. In the present invention, when the rotary cylinder 801 rotates, the stirring shaft 1301 of the second stirrer 13 is driven to rotate synchronously through the transmission assembly 12, so that the multiple groups of stirring columns 1302 outside the stirring shaft 1301 can stir the metal waste residue in the vibrating state of the screening mesh 15, so that the metal waste residue can fully react with the treatment liquid; The transmission assembly 12 includes a fixed bevel gear 1201 and multiple sets of transmission bevel gears 1202. The fixed bevel gear 1201 is coaxially installed outside the fixed shaft 17. Multiple sets of transmission bevel gears 1202 are coaxially installed at the ends of the corresponding stirring shafts 1301 and are in meshing transmission with the fixed bevel gear 1201. When the rotary cylinder 801 drives the stirring shafts 1301 of multiple sets of second stirrers 13 to rotate around the fixed shaft 17, through the meshing of the fixed bevel gear 1201 and the transmission bevel gears 1202, the stirring shafts 1301 are driven to rotate themselves. And the liquid delivery pipe 9 is fixedly installed outside the rotary part. The end of the liquid delivery pipe 9 away from the rotary cylinder 801 is provided with a liquid inlet. When the stirring shaft 1301 rotates itself, it can drive the screw rod 14 in the liquid delivery pipe 9 to rotate, suck the treatment liquid in the reaction kettle 1 away from the rotary cylinder 801 into the liquid delivery pipe 9 from the liquid inlet, and then transport it along the liquid delivery channel in the stirring shaft 1301, and finally inject it into the rotary cylinder 801 through the stirring branch pipes of the stirring column 1302 to participate in the reaction of the metal waste residue. By the above method, the present invention forcibly improves the flow of the treatment liquid in the reaction kettle 1 and avoids the problem that the reaction ion concentration of the treatment liquid in the reaction kettle 1 deviates greatly due to the poor fluidity of the treatment liquid.

[0027] Such as Figure 3 and Figure 5 As shown, in the embodiment of the present invention, the vibration assembly 16 includes a transmission rod 1601, a return spring 1602, a sliding guide wheel 1603 and a fixed ring 1604. Multiple sets of transmission rods 1601 are fixedly installed at the bottom of the connecting column. The return spring 1602 is wound around the rod body of the transmission rod 1601 and is used to elastically connect the transmission rod 1601 and the rotary cylinder 801. The sliding guide wheel 1603 is rotatably installed at the bottom of the transmission rod 1601. The fixed ring 1604 is fixedly installed at the bottom of the reaction kettle 1, and its upper side end face is provided with a wavy support surface for the sliding guide wheel 1603 to slide. In the present invention, when the rotary cylinder 801 rotates, it drives the two sliding guide wheels 1603 at the bottom to slide along the upper surface of the fixed ring 1604. And because the upper white surface of the fixed ring 1604 is wavy, the sliding guide wheel 1603 reciprocates up and down during the sliding process, and drives multiple sets of screening nets 15 to vibrate reciprocally through the connection column.

[0028] In summary, in the present invention, a material containing cylinder 8 for containing metallic waste residue is provided inside the reaction kettle 1, and the material containing cylinder 8 composed of a rotary cylinder 801 and a rotary pipe 802 is provided. When an operator puts metallic waste, the lifting assembly 7 drives the sealing cover 3 and the material containing cylinder 8 at its bottom to move upward, and keeps the intermittent discharging assembly 11 inside the material containing cylinder 8 above the liquid level of the treatment liquid, so as to avoid the metallic waste residue contacting the treatment liquid and generating gas during the process of placing the metallic waste residue into the material containing cylinder 8, which affects the feeding of the operator. When the sealing cover 3 descends, the chemical gas generated by the contact between the metallic waste residue and the treatment liquid can be discharged into the ventilation discharge pipe 6 through the ventilation holes on the sealing cover 3 for unified collection and treatment; When the metallic waste paper reacts and contacts with the treatment liquid, the rotation of the rotary cylinder 801 drives the bottom support plate 1102 and the rotary sealing plate 1103 in the intermittent discharging assembly 11 to be intermittently staggered, so that the metallic waste residue on the intermittent discharging assembly 11 is intermittently discharged into the screening mesh 15 at the bottom during the reaction and reacts in different layers of the treatment liquid. When the second stirrer 13 rotates with the rotary cylinder 801, it rotates itself to stir the metallic waste residue in the vibrating state of the screening mesh 15. At the same time, when the stirring shaft 1301 of the second stirrer 13 rotates itself, it can suck the treatment liquid far away from the rotary cylinder 801 in the reaction kettle 1 into the liquid inlet of the liquid delivery pipe 9 and finally inject it into the rotary cylinder 801 through the stirring branch pipe to participate in the reaction of the metallic waste residue, improving the flow of the treatment liquid in the reaction kettle 1. The fully reacted metallic waste residue has its particle size reduced during the reaction process and is screened through the mesh holes on the screening mesh 15 into the next layer of screening mesh 15 to continue the reaction until the metallic waste residue is completely reacted.

[0029] The above has described the preferred embodiments of the present invention in detail, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A multi-metal waste residue safe recycling device, characterized in that, It includes a reaction kettle and a material storage cylinder. The reaction kettle is fixedly installed on the ground through two groups of support legs, and a liquid discharge port is arranged at its bottom. Its upper opening is sealed by a sealing cover. The sealing cover is driven to lift by a lifting assembly at the top of the reaction kettle. The material storage cylinder is installed at the bottom of the sealing cover and includes a rotary cylinder and a rotary pipe. The rotary cylinder is rotatably installed at the bottom of the sealing cover and is driven to rotate by a rotary assembly on the sealing cover. The rotary pipe is coaxially arranged at the center of the rotary cylinder; A communication groove for the circulation of the treatment liquid is provided on the side surface of the rotary cylinder. An intermittent discharging assembly and a first stirring assembly are arranged at the upper end of the rotary cylinder. A plurality of groups of second stirring assemblies are arranged at intervals along the vertical direction at the lower end of the rotary cylinder. Each group of second stirring assemblies includes a plurality of second stirrers. The plurality of second stirrers on the same layer are arranged circumferentially around the rotary pipe in the rotary cylinder, and their two ends are respectively rotatably installed on the rotary cylinder and the rotary pipe. An infusion channel for the treatment liquid to pass through is provided in the second stirrer, and liquid discharge holes for the treatment liquid to be discharged are provided on its body. One end of the plurality of second stirrers inserted into the rotary pipe is in transmission connection with a fixed shaft in the rotary pipe through a transmission assembly. The end of the stirring shaft of the second stirrer extending out of the rotary cylinder is communicated with a liquid delivery pipe outside the rotary cylinder. The end of the stirring shaft of the second stirrer is coaxially fixedly connected with a screw rod in the liquid delivery pipe. A group of screening meshes are correspondingly arranged at the bottom of each group of second stirring assemblies. The apertures of the plurality of screening meshes decrease sequentially from top to bottom, and adjacent screening meshes are fixedly connected by connecting columns. Moreover, the screening meshes are in transmission connection with the reaction kettle through a vibration assembly; When the rotary cylinder rotates, it drives the first stirring assembly to stir the metal waste residue at the upper end of the intermittent discharging assembly, and drives the plurality of second stirrers to rotate through the transmission assembly, and drives the plurality of screening meshes to vibrate reciprocally through the vibration assembly.

2. The safety recycling device for multi-metal waste residues according to claim 1, characterized in that, The lifting assembly includes a plurality of guide columns, a driving screw rod and a first motor; The upper ends of the plurality of guide columns are fixedly installed on the sealing cover, and the lower column bodies thereof are slidably connected with guide holes opened on the upper side of the reaction kettle. The upper end of the driving screw rod is rotatably installed on the sealing cover and is driven to rotate by a first motor correspondingly arranged on the sealing cover. A fixed internal nut in threaded connection with the corresponding driving screw rod is provided on the upper side of the reaction kettle.

3. The safety recovery device for multi-metal waste residue according to claim 1, characterized in that, A ventilation and exhaust pipe and a feed guiding groove are arranged on the sealing cover; The ventilation and exhaust pipe is communicated with a ventilation hole on the sealing cover. The feed guiding groove is communicated with a feed inlet at the center of the sealing cover, and its top is sealed by a sealing flip cover.

4. A multi-metal waste residue safety recovery device according to claim 1, characterized in that, The rotary assembly includes a rotary gear ring, a driving gear and a second motor; The rotary gear ring is coaxially fixedly installed on the outer side of the rotary cylinder. The driving gear is arranged on one side of the rotary gear ring and is meshed with the rotary gear ring. The second motor is fixedly installed on the sealing cover and is used to drive the driving gear to rotate.

5. The safety recovery device for multi-metal waste residue according to claim 1, characterized in that, The intermittent rotation assembly includes a fixed bottom support and a rotary sealing plate; The fixed base includes a fixed pipe and multiple groups of base plates. The fixed base is rotatably installed on the outer side of the rotary pipe, and its upper end is fixedly connected to the sealing cover. Multiple groups of base plates are fixedly installed at the bottom of the fixed pipe. A blanking opening for the metal waste residue to fall is provided between adjacent base plates. Both ends of the rotary sealing plate are fixedly connected to the rotary pipe and the rotary cylinder, and the rotary sealing plate can seal the blanking opening.

6. The safety recovery device for multi-metal waste residue according to claim 1, characterized in that, The first stirring assembly includes multiple groups of stirring claws. The multiple groups of stirring claws are evenly arranged along the circumferential direction of the rotary cylinder, and one end of each stirring claw is fixedly connected to the inner wall of the rotary cylinder.

7. A multi-metal waste residue safe recovery device according to claim 1, characterized in that, The second stirrer includes a stirring shaft and multiple groups of stirring columns. Stirring branch pipes communicating with the liquid infusion channel in the stirring shaft are arranged in the multiple groups of stirring columns.

8. The safety recovery device for multi-metal waste residue according to claim 1, wherein, The transmission assembly includes a fixed bevel gear and multiple groups of transmission bevel gears; The fixed bevel gear is coaxially installed on the outer side of the fixed shaft. Multiple groups of transmission bevel gears are coaxially installed at the ends of the corresponding stirring shafts and are meshed with the fixed bevel gear for transmission.

9. The safety recovery device for multi-metal waste residues according to claim 1, characterized in that, The liquid delivery pipe is fixedly installed on the outside of the rotary body, and a liquid inlet is provided at the end away from the rotary cylinder.

10. The safety recovery device for multi-metal waste residue according to claim 1, characterized in that, The vibration assembly includes a transmission rod, a return spring, a sliding guide wheel, and a fixed ring; Multiple groups of transmission rods are fixedly installed at the bottom of the connecting column. The return spring is wound around the rod body of the transmission rod and is used to elastically connect the transmission rod to the rotary cylinder. The sliding guide wheel is rotatably installed at the bottom of the transmission rod. The fixed ring is fixedly installed at the bottom of the reaction kettle, and a wavy support surface for the sliding guide wheel to slide is provided on its upper side end face.

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