Metal particle waste screening device

Abstract

The invention discloses a metal particle waste screening device, and relates to the technical field of metal recycling, the metal particle waste screening device comprises a screening box and a disc-shaped primary screening box, the primary screening box is installed on the screening box, and a primary screening mechanism is arranged on the primary screening box and used for screening out iron particles in metal particle waste; the end, away from the primary screening box, of the screening box is provided with a water flowing opening and connected with a water guiding plate, a water collecting tank is installed on the outer wall of the screening box and located below the water guiding plate, and the outer wall of the bottom of the screening box is connected with a plurality of supporting legs. The water flow applies rightward force to the metal particles, the metal particles move rightwards while sinking, the copper particles and the aluminum particles are the same in particle size but large in density difference, the sinking speed of the copper particles in the water is higher than that of the aluminum particles, the rightward moving distance of the aluminum particles in the sinking process is larger, and therefore the metal particles are prevented from sinking. And screening of the copper-aluminum particle waste is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of metal recovery, and in particular to a metal particle waste screening device. Background Art

[0002] Existing domestic garbage and construction waste contain a lot of metal waste, mainly copper, aluminum, iron and other materials. These metals have good recycling value. When recycling, large metal waste needs to be crushed. The particle sizes of various metal particles after crushing are almost the same, but the various different metal particles after crushing are mixed together, making it difficult to quickly separate and screen out metal particles of different materials, resulting in low recycling efficiency. Therefore, a metal particle waste screening device is proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to propose a metal particle waste screening device.

[0004] A metal particle waste screening device comprises a screening box and a disc-shaped primary screening box, wherein the primary screening box is installed on the screening box, and a primary screening mechanism is provided on the primary screening box for screening out iron particles in the metal particle waste. A water outlet is provided at one end of the screening box away from the primary screening box and is connected to a water guide plate, a water collecting box is installed on the outer wall of the screening box and below the water guide plate, a plurality of supporting legs are connected to the bottom outer wall of the screening box, and a first collecting box and a second collecting box are installed in the screening box.

[0005] Preferably, a water pump is installed on the bottom outer wall of the screening box, the water inlet of the water pump is connected to a water pumping pipe, the other end of the water pumping pipe is connected to the bottom of the water collecting tank, the water outlet of the water pump is connected to a water supply pipe, and the end of the water supply pipe away from the water pump is connected to a plurality of water supply flat spouts, and the plurality of water supply flat spouts are all connected to the box wall of the screening box.

[0006] Preferably, the primary screening mechanism includes a motor and a main shaft, the main shaft is rotatably connected to the center position of the front and rear box walls of the primary screening box, the main shaft is coaxially connected to a cylinder in the primary screening box, both ends of the cylinder are coaxially connected to a circular rotating plate, a plurality of partitions are equidistantly connected between the two rotating plates, a feed port is opened on the top of the primary screening box and is connected to a feed pipe, a feed hopper is connected to the top of the feed pipe, a cylindrical material guide box is connected to the middle position of the feed pipe, and both ends of the material guide box are rotatably connected to rotating shafts, The rotating shaft is located in the material guide box and is coaxially connected to a material transport cylinder. The material transport cylinder is in contact with the inner wall of the material guide box, and a material transport groove is provided on the material transport cylinder. The motor is installed on the outer wall of the material guide box, and the output shaft of the motor is coaxially connected to the rotating shaft. One end of the rotating shaft away from the motor extends to the outside of the material guide box and is coaxially connected to a driving wheel. One end of the main shaft extends to the outside of the primary screening box and is coaxially connected to a driven wheel. A transmission belt is jointly provided on the driving wheel and the driven wheel. A material dropping port is provided at the bottom of the primary screening box and is connected to a material spreading nozzle.

[0007] Preferably, a plurality of fixed rods are equidistantly connected between the two rotating plates, and a rotating ring is rotatably connected at both ends of each of the fixed rods, and both rotating rings are connected to pull ropes, and the lower ends of the two pull ropes are commonly connected to an electromagnet, and a discharge port is provided on the side groove wall of the primary screening box and is connected to a third collecting box, and an end of the main shaft away from the driven wheel extends to the outside of the primary screening box and is equidistantly connected to a plurality of rotating rods, and an end of each rotating rod away from the main shaft is connected to a power connection block, and a power connection ring is coaxially arranged on the outer wall of one end of the primary screening box close to the rotating rod, and each power connection block is slidably connected to the power connection ring, and the number of the power connection blocks is the same as the number of electromagnets and corresponds one to one, and each power connection block is electrically connected to the control circuit of the electromagnet at the corresponding position.

[0008] Preferably, the power connecting ring is composed of a seven-eighths conductive segment and a one-eighth insulating segment, and the insulating segment on the power connecting ring is close to the discharge port.

[0009] Preferably, the first collecting box is closer to the primary screening box than the second collecting box.

[0010] Preferably, a filter screen is provided in the water collecting tank.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. The present invention controls the change of magnetic force by turning the electromagnet on and off, thereby adsorbing the iron particles in the waste in the primary screening box, and after the iron particles are separated from the rest of the metal waste, the magnetic force is controlled to disappear so that the iron particles will freely fall from the discharge port to the third collection box to be collected separately.

[0013] 2. The present invention arranges a horizontal continuous water flow in the screening box, so that the water flow applies a rightward force to the metal particles, causing the metal particles to sink and move to the right. The copper particles and the aluminum particles have the same particle size but a large difference in density, so that the copper particles sink faster in the water than the aluminum particles. Therefore, the aluminum particles move a greater distance to the right during the sinking process, thereby realizing the screening of copper and aluminum particle wastes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a structural cross-sectional view of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the primary screening mechanism in the present invention.

[0017] Figure 4 It is a structural schematic diagram of the primary screening mechanism in the present invention from another angle.

[0018] Figure 5 It is a structural cross-sectional view of the primary screening mechanism in the present invention.

[0019] Figure 6 It is a schematic diagram of the structure inside the primary screening box of the present invention.

[0020] Figure 7 It is a structural schematic diagram of the electric connection ring in the present invention.

[0021] In the figure: 1 screening box, 11 supporting feet, 12 water guide plate, 13 water collecting box, 14 water pump, 15 water suction pipe, 16 water supply pipe, 17 water supply flat nozzle, 18 first collecting box, 19 second collecting box, 2 primary screening box, 21 main shaft, 211 cylinder, 212 rotating plate, 213 partition, 22 feeding port, 221 feeding pipe, 222 feeding hopper, 223 material guide box, 224 rotating shaft, 225 material transport cylinder, 226 material transport trough, 23 dropping port, 231 spreading nozzle, 24 discharging port, 241 third collecting box, 25 fixing rod, 251 rotating ring, 252 pulling rope, 253 electromagnet, 26 driving wheel, 261 driven wheel, 262 transmission belt, 27 connecting ring, 271 conductive section, 272 insulating section, 28 rotating rod, 281 connecting block, 29 motor. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] Reference Figure 1-7As shown, a metal particle waste screening device includes a screening box 1 and a disc-shaped primary screening box 2, wherein the primary screening box 2 is installed on the screening box 1, and a primary screening mechanism is provided on the primary screening box 2 for screening out iron particles in the metal particle waste. A water outlet is provided at one end of the screening box 1 away from the primary screening box 2 and is connected to a water guide plate 12, a water collecting box 13 is installed on the outer wall of the screening box 1 and below the water guide plate 12, a plurality of supporting legs 11 are connected to the bottom outer wall of the screening box 1, and a first collecting box 18 and a second collecting box 19 are installed in the screening box 1.

[0024] In this embodiment, a water pump 14 is installed on the bottom outer wall of the screening box 1, and the water inlet of the water pump 14 is connected to a water pumping pipe 15, the other end of the water pumping pipe 15 is connected to the bottom of the water collecting box 13, and the water outlet of the water pump 14 is connected to a water supply pipe 16, and the end of the water supply pipe 16 away from the water pump 14 is connected to a plurality of water supply flat spouts 17, and the plurality of water supply flat spouts 17 are all connected to the box wall of the screening box 1.

[0025] In this embodiment, the primary screening mechanism includes a motor 29 and a main shaft 21, the main shaft 21 is rotatably connected to the center position of the front and rear box walls of the primary screening box 2, the main shaft 21 is located in the primary screening box 2 and is coaxially connected to a cylinder 211, both ends of the cylinder 211 are coaxially connected to a circular rotating plate 212, and a plurality of partitions 213 are equidistantly connected between the two rotating plates 212, a feed port 22 is provided at the top of the primary screening box 2 and is connected to a feed pipe 221, a feed hopper 222 is connected to the top of the feed pipe 221, a cylindrical material guide box 223 is connected to the middle position of the feed pipe 221, and both ends of the material guide box 223 are rotatably connected to a rotating shaft 224, and the rotating shaft 224 is located in the inner part of the material guide box 223 and is coaxially connected to a material transport cylinder 2 25, the material conveying cylinder 225 is fitted with the inner wall of the material guide box 223, and a material conveying trough 226 is provided on the material conveying cylinder 225. The motor 29 is installed on the outer wall of the material guide box 223, and the output shaft of the motor 29 is coaxially connected with the rotating shaft 224. The end of the rotating shaft 224 away from the motor 29 extends to the outside of the material guide box 223 and is coaxially connected with a driving wheel 26. One end of the main shaft 21 extends to the outside of the primary screening box 2 and is coaxially connected with a driven wheel 261. The driving wheel 26 and the driven wheel 261 are jointly sleeved with a transmission belt 262. A material drop port 23 is provided at the bottom of the primary screening box 2 and is connected with a spreading nozzle 231. The lower end of the spreading nozzle 231 is flat-mouthed, so that each metal particle has the same horizontal distance from the water supply flat nozzle 17 when falling.

[0026] In this embodiment, a plurality of fixed rods 25 are equidistantly connected between the two rotating plates 212, and a rotating ring 251 is rotatably connected to each of the two ends of each fixed rod 25, and both rotating rings 251 are connected to a pull rope 252, and the lower ends of the two pull ropes 252 are commonly connected to an electromagnet 253, and a discharge port 24 is provided on the side groove wall of the primary screening box 2 and is connected to a third collecting box 241, and one end of the main shaft 21 away from the driven wheel 261 extends to the outside of the primary screening box 2 and is equidistantly connected to a plurality of rotating rods 28, and each rotating rod 28 is away from one end of the main shaft 21. The end is connected with a power connection block 281, and a power connection ring 27 is coaxially arranged on the outer wall of one end of the primary screening box 2 close to the rotating rod 28. Each of the power connection blocks 281 is slidably connected with the power connection ring 27. The number of the power connection blocks 281 is the same as the number of the electromagnets 253 and corresponds one to one. Each of the power connection blocks 281 is electrically connected to the control circuit of the electromagnet 253 at the corresponding position. When the power connection block 281 is located at the conductive segment 271 of the power connection ring 27, the electromagnet 253 is energized and has magnetism. When the power connection block is located at the insulating segment 272 of the power connection ring 27, the electromagnet 253 is de-energized and has no magnetism.

[0027] In this embodiment, the power connection ring 27 is composed of a seven-eighth conductive segment 271 and a one-eighth insulating segment 272 , and the insulating segment 272 on the power connection ring 27 is close to the discharge port 24 .

[0028] In this embodiment, the first collecting box 18 is closer to the primary screening box 2 than the second collecting box 19 .

[0029] In this embodiment, a filter screen is provided in the water collecting box 13 .

[0030] The working process and principle of the present invention are as follows:

[0031] When in use, the screening box 1 is filled with water, and the metal particle waste is poured into the feed hopper 222. At the same time, the motor 29 and the water pump 14 are turned on. The motor 29 will drive the material conveying barrel 225 to rotate, and the waste in the feed hopper 222 is quantitatively transported to the primary screening box 2 through the material conveying trough 226. The waste enters the primary screening box 2 from the feed inlet 22 and falls into the single grid space composed of two rotating plates 212 and the partition plate 213. Through the belt transmission, the rotating rotating plate 212 will drive the waste to roll in the primary screening box 2, so that the waste is fully in contact with the electromagnet 253. At this time, the power connection block 281 corresponding to the electromagnet 253 will The electromagnet 253 contacts the conductive segment 271 of the power ring 27 and absorbs the iron particles in the waste with electricity. The remaining waste will move to the drop port 23 with the rotation of the rotating plate 212 and fall vertically from the spreading nozzle 231, while the iron particles will move to the discharge port 24 with the electromagnet 253. At this time, the power block 281 corresponding to the electromagnet 253 will slide from the conductive segment 271 area of ​​the power ring 27 to the insulating segment 272 area, and the electromagnet 253 will be powered off and will have no magnetic force. After the magnetic force disappears, the iron particles will fall freely from the discharge port 24 to the third collection box 241 and be screened out separately.

[0032] The remaining two types of metal particle wastes falling from the spreading nozzle 231 will fall vertically into the water of the screening box 1, and the screening box 1 is provided with a horizontal water flow sprayed from the water supply flat nozzle 17. These water flows will exert a rightward force on the metal particles, causing the metal particles to sink and move to the right. Since the copper particles and the aluminum particles have the same particle size but a large difference in density, under the same buoyancy, the copper particles are subjected to a greater gravity, causing the copper particles to sink faster in the water than the aluminum particles. The sinking speed is faster, so the aluminum particles move a greater distance to the right during the sinking process. Under the screening of the water flow, the copper particles will sink and fall into the first collecting box 18, while the aluminum particles moving farther to the right will sink and fall into the second collecting box 19, thereby realizing the screening of copper and aluminum particle wastes, and the non-metallic impurities contained in the metal waste will float on the water surface, flow into the water collecting tank 13 with the water flow, and after being filtered by the filter screen, they will be pressurized by the water pump 14 and sprayed out from the water supply flat nozzle 17 to realize water circulation.

[0033] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A metal particle waste screening device, characterized in that: The invention comprises a screening box (1) and a disc-shaped primary screening box (2), wherein the primary screening box (2) is mounted on the screening box (1), and a primary screening mechanism is arranged on the primary screening box (2) for screening out iron particles in metal particle waste. An end of the screening box (1) away from the primary screening box (2) is provided with a water flow outlet and is connected to a water guide plate (12). A water collecting box (13) is installed on the outer wall of the screening box (1) and below the water guide plate (12). The bottom outer wall of the screening box (1) is connected to a plurality of legs (11), and a first collecting box (18) and a second collecting box (19) are installed in the screening box (1).

2. A metal particle waste screening device according to claim 1, characterized in that: A water pump (14) is installed on the outer wall of the bottom of the screening box (1); the water inlet of the water pump (14) is connected to a water pumping pipe (15); the other end of the water pumping pipe (15) is connected to the bottom of the water collecting box (13); the water outlet of the water pump (14) is connected to a water supply pipe (16); one end of the water supply pipe (16) away from the water pump (14) is connected to a plurality of water supply flat nozzles (17); the plurality of water supply flat nozzles (17) are all connected to the box wall of the screening box (1).

3. The metal particle waste screening device according to claim 1, characterized in that: The primary screening mechanism comprises a motor (29) and a main shaft (21), the main shaft (21) being rotatably connected to the center positions of the front and rear box walls of the primary screening box (2), the main shaft (21) being located in the primary screening box (2) and being coaxially connected to a cylinder (211), both ends of the cylinder (211) being coaxially connected to a circular rotating plate (212), a plurality of partitions (213) being equidistantly connected between the two rotating plates (212), a feed port (22) being provided at the top of the primary screening box (2) and being connected to a feed pipe (221), a feed hopper (222) being connected to the top of the feed pipe (221), a cylindrical material guide box (223) being connected at the middle position of the feed pipe (221), both ends of the material guide box (223) being rotatably connected to a rotating shaft (224), the rotating shaft (224) being located at the guide box. The inner part of the material conveying cylinder (223) is coaxially connected with a material conveying cylinder (225), the material conveying cylinder (225) is in contact with the inner wall of the material guide box (223), a material conveying groove (226) is provided on the material conveying cylinder (225), the motor (29) is installed on the outer wall of the material guide box (223), the output shaft of the motor (29) is coaxially connected with the rotating shaft (224), the end of the rotating shaft (224) away from the motor (29) extends to the outside of the material guide box (223) and is coaxially connected with a driving wheel (26), one end of the main shaft (21) extends to the outside of the primary screening box (2) and is coaxially connected with a driven wheel (261), the driving wheel (26) and the driven wheel (261) are jointly sleeved with a transmission belt (262), and a material dropping port (23) is provided at the bottom of the primary screening box (2) and is connected with a material spreading nozzle (231).

4. A metal particle waste screening device according to claim 3, characterized in that: A plurality of fixed rods (25) are connected at equal distances between the two rotating plates (212), and a rotating ring (251) is rotatably connected to each of the two fixed rods (25), and the two rotating rings (251) are both connected to a pull rope (252), and the lower ends of the two pull ropes (252) are commonly connected to an electromagnet (253). A discharge port (24) is provided on the side groove wall of the primary screening box (2) and is connected to a third collecting box (241), and one end of the main shaft (21) away from the driven wheel (261) extends to the outside of the primary screening box (2). A plurality of rotating rods (28) are connected to the side and at equal distances, and an end of each rotating rod (28) away from the main shaft (21) is connected to a power connection block (281). An power connection ring (27) is coaxially arranged on the outer wall of one end of the primary screening box (2) close to the rotating rod (28), and each power connection block (281) is slidably connected to the power connection ring (27). The number of the power connection blocks (281) is the same as the number of the electromagnets (253) and corresponds one to one, and each power connection block (281) is electrically connected to the control circuit of the electromagnet (253) at the corresponding position.

5. A metal particle waste screening device according to claim 4, characterized in that: The power connection ring (27) is composed of a seven-eighths conductive segment (271) and a one-eighth insulating segment (272), and the insulating segment (272) on the power connection ring (27) is close to the discharge port (24).

6. The metal particle waste screening device according to claim 1, characterized in that: The first collecting box (18) is closer to the primary screening box (2) than the second collecting box (19).

7. The metal particle waste screening device according to claim 1, characterized in that: A filter screen is arranged inside the water collecting box (13).

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