Metal scrap recovery device

Abstract

The invention discloses a metal scrap recovery device, and relates to the technical field of metal recovery, the metal scrap recovery device comprises a cylindrical treatment barrel and a crushing box, the bottom of the treatment barrel is provided with a plurality of support legs, the outer wall of the treatment barrel is connected with an L-shaped bracket, the crushing box is mounted at the top of the bracket, and the crushing box is connected with a crushing device. A screening and washing mechanism is arranged in the treatment barrel and used for screening out non-metallic materials in crushed metal and cleaning metal fragments, a feeding port is formed in the top of the crushing box and connected with a feeding hopper, and a discharging port is formed in the bottom of the crushing box and connected with an inclined discharging guide pipe. According to the method, firstly, old metal waste is crushed, then metal fragments and non-metal fragments are soaked in water together, and the non-metal fragments float upwards in the overturning process and overflow out of a water bucket along with water flow through continuous overturning and the characteristic that the density of the non-metal fragments is lower than that of the water; and efficient separation of metal fragments and non-metal fragments is achieved.

Description

Technical Field

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

[0002] Metal recycling refers to the separation of useful substances from scrap metals and waste materials into recycled products through physical or mechanical processing. Old metal scraps have great recycling value.

[0003] In the prior art, when recycling old metal waste, the old metal waste is usually crushed first and then screened according to the type of metal. However, the existing old metal waste is also adhered with non-metallic materials, such as plastic, wood and other impurities. Therefore, when recycling metal, the non-metallic materials in the metal need to be removed. The traditional method of crushing and then screening cannot effectively remove non-metallic materials. For this reason, a metal waste recycling device is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a metal waste recycling device.

[0005] A metal waste recycling device includes a cylindrical processing barrel and a crushing box, wherein a plurality of legs are installed at the bottom of the processing barrel, an L-shaped bracket is connected to the outer wall of the processing barrel, and the crushing box is installed on the top of the bracket. A screening and washing mechanism is arranged in the processing barrel for screening out non-metallic materials in the crushed metal and cleaning the metal fragments.

[0006] Preferably, a feed port is provided at the top of the crushing box and is connected to a feed hopper, a discharge port is provided at the bottom of the crushing box and is connected to an inclined discharge conduit, a first motor is installed on the outer wall of the crushing box, two parallel rotating shafts are rotatably connected to the inner walls on both sides of the crushing box, crushing rollers are coaxially connected to the two rotating shafts, one end of one of the rotating shafts is coaxially connected to the output shaft of the first motor, the two rotating shafts extend to the outside of the crushing box at one end away from the first motor and are coaxially connected to the first gear, and the two first gears are meshed with each other.

[0007] Preferably, the screening and washing mechanism includes a cylindrical water bucket and a hydraulic cylinder, the water bucket is installed at the bottom of the processing barrel, the water bucket and the processing barrel are coaxially arranged, the bottom center position of the processing barrel is sealed and slidably connected with a main shaft, the top of the main shaft is connected with a cylindrical screening and washing basket, the hydraulic cylinder is installed on the bottom outer wall of the processing barrel, the movable end of the hydraulic cylinder is connected with a lifting plate, the lower end of the main shaft passes through the processing barrel and is rotatably connected with the lifting plate, a water pump is installed on the bottom outer wall of the processing barrel, the water outlet of the water pump is connected to a water supply pipe, the end of the water supply pipe away from the water pump is connected to the bottom of the water bucket, and the water inlet of the water pump is connected to a water pumping pipe, the end of the water pumping pipe away from the water pump is connected to the bottom of the processing barrel.

[0008] Preferably, a second motor is installed at the bottom of the processing barrel through a mounting plate, and a U-shaped connecting plate is connected to the bottom of the processing barrel. A rotating sleeve is rotatably connected to the connecting plate, and the rotating sleeve is slidably connected to the main shaft. The outer ring of the rotating sleeve is coaxially connected to a second gear, and a third gear is coaxially connected to the output shaft of the second motor, and the second gear and the third gear are meshed.

[0009] Preferably, an annular guide rail is installed on the inner wall of the bottom of the water bucket, and the annular guide rail is coaxially arranged with the water bucket. A slider is slidably connected to the annular guide rail, and an inclined water pushing plate is connected to the slider. A push rod is connected to the side of the slider, and a fixed plate is connected to the bottom of the screen washing basket. The height of the water pushing plate is higher than the height of the water bucket.

[0010] Preferably, an annular filter screen is connected between the inner barrel wall of the treatment barrel and the outer barrel wall of the water barrel.

[0011] Preferably, the height of the treatment bucket is twice the height of the water bucket, and the height of the screening and washing basket is lower than the height of the water bucket.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The present invention firstly crushes the old metal waste, and then immerses the metal fragments and non-metal fragments into water together. By continuously turning over and utilizing the characteristic that the density of the non-metal fragments is lower than that of water, the non-metal fragments float up during the turning over and overflow out of the bucket with the water flow, thereby realizing efficient separation of the metal fragments and the non-metal fragments.

[0014] 2. After the present invention screens out the non-metallic fragments, the second motor is controlled to drive the screening basket to rotate clockwise, so that the water waves originally pushed outward by the water pushing plate change to surge toward the inside of the water bucket, and the metal fragments in the screening basket are pressed against the basket wall by the centrifugal effect and collide with the water waves formed by the water pushing plate, thereby cleaning the impurities attached to the surface of the metal fragments. After cleaning, the screening basket only needs to be lifted away from the water body, and the water on the metal fragments can be thrown off by the centrifugal force of the rotation of the screening basket, thereby realizing rapid drying of the metal fragments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] Figure 2 It is a structural sectional view of the crushing box part in the present invention.

[0017] Figure 3 It is a schematic structural diagram of the processing barrel part in the present invention.

[0018] Figure 4 It is a structural cross-sectional view of the processing barrel part in the present invention.

[0019] Figure 5 for Figure 4 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: 1 processing barrel, 11 support foot, 12 bracket, 2 crushing box, 21 feed hopper, 22 discharge pipe, 23 first motor, 24 rotating shaft, 25 crushing roller, 26 first gear, 3 screening and washing mechanism, 31 water bucket, 311 filter screen, 32 main shaft, 33 screening and washing basket, 34 hydraulic cylinder, 341 lifting plate, 35 second motor, 351 mounting plate, 352 second gear, 353 third gear, 36 connecting plate, 361 rotating sleeve, 37 water pump, 371 water supply pipe, 372 water pump, 38 annular guide rail, 381 slider, 382 push rod, 383 fixed plate, 39 water pushing plate. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-5 As shown, a metal waste recycling device includes a cylindrical processing barrel 1 and a crushing box 2, a plurality of legs 11 are installed at the bottom of the processing barrel 1, an L-shaped bracket 12 is connected to the outer wall of the processing barrel 1, and the crushing box 2 is installed on the top of the bracket 12, and a screening and washing mechanism 3 is arranged in the processing barrel 1 for screening out non-metallic materials in the crushed metal and cleaning the metal fragments.

[0023] In this embodiment, a feed port is provided at the top of the crushing box 2 and is connected to a feed hopper 21, a discharge port is provided at the bottom of the crushing box 2 and is connected to an inclined discharge conduit 22, a first motor 23 is installed on the outer wall of the crushing box 2, and two parallel rotating shafts 24 are rotatably connected to the inner walls on both sides of the crushing box 2, and crushing rollers 25 are coaxially connected to the two rotating shafts 24, one end of one of the rotating shafts 24 is coaxially connected to the output shaft of the first motor 23, and the two rotating shafts 24 extend to the outside of the crushing box 2 away from the end of the first motor 23 and are coaxially connected to the first gear 26, and the two first gears 26 are meshed with each other.

[0024] In this embodiment, the screening mechanism 3 includes a cylindrical water bucket 31 and a hydraulic cylinder 34. The water bucket 31 is installed at the bottom of the processing barrel 1. The water bucket 31 is coaxially arranged with the processing barrel 1. The center position of the bottom of the processing barrel 1 is sealed and slidably connected with a main shaft 32. At the same time, the main shaft 31 is rotatably connected to the processing barrel 1 and the water bucket 31. The top of the main shaft 32 is connected to a cylindrical screening basket 33. The hydraulic cylinder 34 is installed on the bottom outer wall of the processing barrel 1. The movable end of 34 is connected to a lifting plate 341, the lower end of the main shaft 32 passes through the treatment barrel 1 and is rotatably connected to the lifting plate 341, a water pump 37 is installed on the bottom outer wall of the treatment barrel 1, the water outlet of the water pump 37 is connected to a water supply pipe 371, the end of the water supply pipe 371 away from the water pump 37 is connected to the bottom of the water barrel 31, the water inlet of the water pump 37 is connected to a pumping pipe 372, the end of the pumping pipe 372 away from the water pump 37 is connected to the bottom of the treatment barrel 1.

[0025] In this embodiment, a second motor 35 is installed at the bottom of the processing barrel 1 through a mounting plate 351. A U-shaped connecting plate 36 is connected to the bottom of the processing barrel 1. A rotating sleeve 361 is rotatably connected to the connecting plate 36. The rotating sleeve 361 is slidably connected to the main shaft 32. The outer ring of the rotating sleeve 361 is coaxially connected to a second gear 352. A third gear 353 is coaxially connected to the output shaft of the second motor 35. The second gear 352 and the third gear 353 are meshed with each other. Due to the existence of the rotating sleeve 361, the second motor 35 will drive the main shaft 32 to rotate regardless of whether the main shaft 32 slides up or down.

[0026] In this embodiment, an annular guide rail 38 is installed on the inner wall of the bottom of the water bucket 31. The annular guide rail 38 is coaxially arranged with the water bucket 31. A slider 381 is slidably connected to the annular guide rail 38. The slider 381 is connected to a water push plate 39 which is inclined. A push rod 382 is connected to the side of the slider 381. A fixed plate 383 is connected to the bottom of the screening basket 33. The height of the water push plate 39 is higher than the height of the water bucket 31.

[0027] In this embodiment, an annular filter screen 311 is connected between the inner barrel wall of the treatment barrel 1 and the outer barrel wall of the water barrel 31 .

[0028] In this embodiment, the height of the processing barrel 1 is twice that of the water barrel 31, and the height of the screening basket 33 is lower than that of the water barrel 31, ensuring that the screening basket 33 can be completely immersed in the water barrel 31 filled with water.

[0029] The working process and principle of the present invention are as follows:

[0030] When in use, first fill the water bucket 31 with water, turn on the first motor 23, and then put the old metal scraps to be recycled from the feed hopper 21 into the crushing box 2. The old metal scraps are crushed by the crushing roller 25 to become metal fragments. At the same time, the non-metallic materials attached to the old metal will also be crushed and initially separated from the metal. The crushed metal fragments and non-metallic fragments will be mixed together and guided by the discharge conduit 22 to slide into the screening basket 33.

[0031] After the sieve basket 33 is filled with two-thirds of the volume, the subsequent crushing of the old metal scraps is stopped, and the hydraulic cylinder 34 is started to push down the lifting plate 341 to drive the main shaft 32 to descend, so that the entire sieve basket 33 is completely immersed in the water of the water bucket 31. At this time, the second motor 35 and the water pump 37 are turned on. After the sieve basket 33 is immersed in the water of the water bucket 31, the water in the water bucket 31 will partially overflow and flow into the processing bucket 1. Under the suction supply of the water pump 37, the water in the processing bucket 1 will be pumped from the bottom into the water bucket 31 to form a circulation, and the second motor 35 will drive the sieve basket 33 to rotate in the water, so that the metal in the sieve basket 33 The debris and non-metal debris are turned over. Since the density of non-metal debris (mainly plastic and wood) is lower than that of water, the non-metal debris will float up and separate from the metal debris during the turning process. The small non-metal debris will overflow with the water flow after floating up. During the rotation of the sieve basket 33, the fixed plate 381 on the sieve basket 33 will push the push rod 382 to move, so that the water push plate 39 slides along the path of the annular guide rail 38. The inclined water push plate 39 moves along the edge of the water bucket 31, and will push the water flow in front to form water waves to push the large non-metal debris on the edge of the water bucket 31. The metal fragments are pushed out of the water bucket 31, and the non-metal fragments falling into the processing bucket 1 are intercepted by the filter screen 311, so that the metal fragments and the non-metal fragments are efficiently separated. At the same time, after the sieve washing basket 33 rotates counterclockwise for a period of time, the non-metal fragments are almost all floated up and separated from the metal fragments by flipping. Then, the second motor 35 is controlled to drive the sieve washing basket 33 to rotate clockwise, and the water pushing plate 39 will also slide clockwise, so that the water waves originally pushed outward by the water pushing plate 39 will surge toward the inside of the water bucket 31, and the metal fragments in the sieve washing basket 33 are pressed against the basket wall and the water formed by the water pushing plate 39 by the centrifugal force. The waves collide and impact to clean the impurities attached to the surface of the metal fragments. After the cleaning is completed, the hydraulic cylinder 34 is opened again to lift the main shaft 32, so that the screening basket 33 rises and leaves the water bucket 31 but stays in the processing bucket 1. At this time, the second motor 35 still drives the screening basket 33 to rotate, and the centrifugal force of the rotation of the screening basket 33 is used to throw away the water on the metal fragments to achieve the drying of the metal fragments. After shaking for a certain period of time, the screening basket 33 is continued to be lifted, and finally the workers take out the metal fragments after screening and washing, and then the next round of recycling of old metal waste can be carried out.

[0032] 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 waste recycling device, characterized in that: The invention comprises a cylindrical processing barrel (1) and a crushing box (2), wherein a plurality of legs (11) are installed at the bottom of the processing barrel (1), an L-shaped bracket (12) is connected to the outer wall of the processing barrel (1), the crushing box (2) is installed on the top of the bracket (12), and a screening and washing mechanism (3) is arranged in the processing barrel (1) for screening out non-metallic materials in the crushed metal and washing metal fragments.

2. A metal waste recycling device according to claim 1, characterized in that: The top of the crushing box (2) is provided with a feed port and is connected to a feed hopper (21); the bottom of the crushing box (2) is provided with a discharge port and is connected to an inclined discharge conduit (22); a first motor (23) is installed on the outer wall of the crushing box (2); two parallel rotating shafts (24) are rotatably connected to the inner walls on both sides of the crushing box (2); crushing rollers (25) are coaxially connected to the two rotating shafts (24); one end of one of the rotating shafts (24) is coaxially connected to the output shaft of the first motor (23); one end of the two rotating shafts (24) away from the first motor (23) extends to the outside of the crushing box (2) and is coaxially connected to a first gear (26); the two first gears (26) are meshed with each other.

3. A metal waste recycling device according to claim 1, characterized in that: The screening and washing mechanism (3) comprises a cylindrical water bucket (31) and a hydraulic cylinder (34); the water bucket (31) is mounted on the bottom of the processing barrel (1); the water bucket (31) and the processing barrel (1) are coaxially arranged; a main shaft (32) is sealingly and slidably connected to the center of the bottom of the processing barrel (1); a cylindrical screening and washing basket (33) is connected to the top of the main shaft (32); the hydraulic cylinder (34) is mounted on the outer wall of the bottom of the processing barrel (1); and a lifting plate (341) is connected to the movable end of the hydraulic cylinder (34). ), the lower end of the main shaft (32) passes through the treatment barrel (1) and is rotatably connected to the lifting plate (341), a water pump (37) is installed on the bottom outer wall of the treatment barrel (1), the water outlet of the water pump (37) is connected to a water supply pipe (371), the end of the water supply pipe (371) away from the water pump (37) is connected to the bottom of the water barrel (31), the water inlet of the water pump (37) is connected to a water pumping pipe (372), the end of the water pumping pipe (372) away from the water pump (37) is connected to the bottom of the treatment barrel (1).

4. A metal waste recycling device according to claim 3, characterized in that: A second motor (35) is installed at the bottom of the processing barrel (1) via a mounting plate (351); a U-shaped connecting plate (36) is connected to the bottom of the processing barrel (1); a rotating sleeve (361) is rotatably connected to the connecting plate (36); the rotating sleeve (361) is slidably connected to the main shaft (32); a second gear (352) is coaxially connected to the outer ring of the rotating sleeve (361); a third gear (353) is coaxially connected to the output shaft of the second motor (35); the second gear (352) and the third gear (353) are meshed.

5. A metal waste recycling device according to claim 4, characterized in that: An annular guide rail (38) is installed on the inner wall of the bottom of the water bucket (31), the annular guide rail (38) is coaxially arranged with the water bucket (31), a slider (381) is slidably connected to the annular guide rail (38), a water pushing plate (39) is connected to the slider (381) and is inclined, a push rod (382) is connected to the side of the slider (381), a fixing plate (383) is connected to the bottom of the sieve washing basket (33), and the height of the water pushing plate (39) is higher than the height of the water bucket (31).

6. A metal waste recycling device according to claim 3, characterized in that: An annular filter screen (311) is connected between the inner barrel wall of the treatment barrel (1) and the outer barrel wall of the water barrel (31).

7. A metal waste recycling device according to claim 3, characterized in that: The height of the treatment barrel (1) is twice the height of the water barrel (31), and the height of the screening and washing basket (33) is lower than the height of the water barrel (31).

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