CN113649330A

CN113649330A - Waste metal recovery device

Info

Publication number: CN113649330A
Application number: CN202110979765.4A
Authority: CN
Inventors: 魏本平
Original assignee: Huoqiu Lingsu Environmental Protection Technology Co ltd
Current assignee: Huoqiu Lingsu Environmental Protection Technology Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2021-11-16

Abstract

The invention provides a waste metal recovery device, which comprises: the device comprises a pretreatment unit, a screening unit and a crushing unit; the discharging end of the pretreatment unit faces the material sieving unit, and the material sieving unit is communicated with the crushing unit; the invention carries out surface cleaning and decontamination treatment on waste metal by a pre-treatment unit; drying and protecting the waste metal to avoid the generation of oxide again; then, distinguishing ferrous metals from non-ferrous metals through the arranged screening unit, and communicating the corresponding material conveying channels to perform classification operation and crushing operation on the waste metals; by adopting the technical scheme, the technical problem that the waste metal has more impurities and is difficult to effectively recover is solved; through the material separating unit that is equipped with in order to cut apart into a plurality of washing ponds with the water storage tank, and adopt the pivoted mode to carry out conveying operation to the work piece, when guaranteeing to wash independent operation between the pond, carry out a lot of cleaning operation to the work piece.

Description

Waste metal recovery device

Technical Field

The invention relates to the technical field of environmental management, in particular to a waste metal recovery device.

Background

The metal recovery refers to the process of physically or mechanically processing the swimming substance separated from the waste metal into a recycled product, and is an industrial chain from recovery, disassembly and recycling. The metal recovery industry forms a complete industrial chain and a recycling ecological circle.

Traditional heavy factory can retrieve the old and useless metal of major possession usually, nevertheless directly handle as rubbish to the old and useless metal of small volume such as metal fillings, cause the waste of metal regeneration resource, cut the metal thing and increase the degree of difficulty of administering the environment, secondly current metal is retrieved and is mainly adopted and rolls the unit and flatten the back and carry out the transportation operation, but current old metal is depositing comparatively in a jumble, the surface adheres to there is spot or harmful substance, and harmful substance probably has the corrosion influence to old metal, thereby influence the recovery of old metal.

For this reason, the existing waste metal with impurities attached to the surface is mainly cleaned by vibration, but only the impurities with small particles and small adhesive force can be cleaned, and effective cleaning operation is difficult to realize.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a waste metal recovery device which can be used for effectively cleaning, air-drying and screening and crushing so as to achieve effective recovery and realize high-efficiency cleaning.

According to an embodiment of the present invention, a scrap metal recycling apparatus includes: the device comprises a pretreatment unit, a screening unit and a crushing unit; the discharging end of the pretreatment unit faces the material sieving unit, and the material sieving unit is communicated with the crushing unit;

the preprocessing unit includes: a cleaning component and an ultrasonic processor; the ultrasonic processor is arranged in the cleaning assembly,

the cleaning assembly comprises: a water storage tank and a rolling brush; the rolling brush is rotatably arranged in the water storage tank; a sewage draining outlet is arranged on the water storage tank; the water storage tank is rotatably provided with a material separation unit and is divided into a plurality of cavities, and the cavities are respectively provided with a corresponding rolling brush and an ultrasonic processor; the set number of the sewage outlets is consistent with that of the cavities;

a drying component is arranged between the screening unit and the water storage tank; the drying assembly includes: the device comprises a material receiving plate arranged towards the water storage tank, a feeding piece used for conveying a workpiece into the material screening unit, and a fan arranged towards the material receiving plate and the feeding piece; the fan is arranged between the material receiving plate and the feeding piece; the material receiving plate is fixedly connected with the feeding piece;

the screening unit includes: the device comprises a material distribution bin, a magnetic suction roller and a material conveying channel; the material distribution bin is provided with a discharge hole communicated with the drying assembly, and the magnetic suction roller is arranged between the material distribution bin and the material conveying channel and is used for screening ferrous metals and non-ferrous metals; at least one material conveying channel is communicated with a crushing device;

and the crushing unit is at least provided with a group of crushing units and is used for crushing the workpieces falling from the material conveying channel.

By adopting the technical scheme, the outer surface of the metal is preliminarily treated by matching the rolling brush arranged in the water storage tank with the soaking liquid; then, further cleaning the metal by adopting an ultrasonic processor, and draining and discharging the dirt falling off from the outer surface of the metal through a drain outlet; at the moment, the water storage tank is manually divided through the material separating unit so as to clean the workpiece for multiple times; then, the workpiece can be taken out manually, cooled, blown and dried by a fan and then transferred into a screening device to carry out drying protection on the waste metal; after the material is distinguished from the workpiece through the material screening device (particularly distinguishing ferrous metals from non-ferrous metals), the waste ferrous metals are crushed through the material conveying channel communicated with the crushing device, and the rest metals enter the rest material conveying channel.

Furthermore, the device also comprises a waste treatment unit; the waste disposal unit comprises: the collecting box and the filter screen are detachably arranged in the collecting box; the collecting box is used for collecting the cleaning waste liquid in the water storage tank.

Further, the material separation unit comprises: a rotating rod, a supporting plate and a sleeve; the rotating rod is rotatably inserted in the water storage tank; the outer surface of the rotating rod is wrapped with a sleeve; the backup pad passes the sleeve pipe and fixes on the dwang, and is adjacent the contained angle between the backup pad sets up to 90.

Furthermore, the sleeve is circumferentially provided with openings the number of which is the same as that of the support plates; a cavity is arranged in the sleeve; the collecting box corresponds to the sleeve pipe relatively; and an annular baffle plate which is abutted against the opening is erected on the water storage tank.

Furthermore, a transfer piece with a built-in carrying cavity is rotationally arranged in the material distributing bin; the magnetic suction roller is rotatably arranged in the transfer piece; the discharge end of the material distribution bin faces the transfer piece, and a material inlet communicated with the carrying cavity is formed in the transfer piece; the transfer piece can rotate to be opposite to the feeding port or abut against the outlet end of the material distribution bin.

Furthermore, flexible parts are arranged on the magnetic suction roller in an annular array; the flexible piece can pass through the feed inlet and the discharge end of the material distribution bin in sequence and extend into the material distribution bin.

Furthermore, at least two groups of material conveying channels are arranged; the transfer pieces are communicated with the corresponding material conveying channels one by one through rotation, and the outer walls of the transfer pieces are abutted to the inlet ends of the rest material conveying channels.

Furthermore, a material distributing platform is arranged at the upper bottom of the material conveying channel which runs to the first end corresponding to the material inlet along the rotating direction of the rotating member; the rest material conveying channels are communicated with the crushing unit.

Further, the crushing unit comprises: the device comprises a crushing box, a rolling roller rotationally arranged in the crushing box and a driving motor for driving the rolling roller to run; the driving motor drives the rolling roller to operate through the arranged transmission belt assembly; and the rolling roller is provided with a plurality of tooth-shaped structures. .

The invention has the beneficial effects that:

1. the invention carries out surface cleaning and decontamination treatment on waste metal by a pre-treatment unit; drying and protecting the waste metal to avoid the generation of oxide again; then, distinguishing ferrous metals from non-ferrous metals through the arranged screening unit, and communicating the corresponding material conveying channels to perform classification operation and crushing operation on the waste metals; by adopting the technical scheme, the technical problem that the waste metal has more impurities and is difficult to effectively recover is solved; the ironwork metal can be identified and distinguished through the screening platform, so that the subsequent recovery operation is facilitated, and the manual processing work intensity is reduced;

2. the water storage tank is divided into a plurality of cleaning pools by the material separating unit, and the workpiece is conveyed in a rotating mode, so that the workpiece is cleaned for multiple times while independent operation among the cleaning pools is ensured, and the condition of effectively cleaning and removing oxides is achieved;

3. in addition, the material separating unit is matched with the arc-shaped baffle plate in a rotating way to drain water in the cleaning tank into the waste treatment unit so as to realize one-time replacement; the cleaning pool is kept in a clean and sanitary state relatively.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a pretreatment unit in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a spacer unit in an embodiment of the invention;

FIG. 4 is a schematic view of the main structure of the sleeve according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view of a transfer member in an embodiment of the present invention.

In the above drawings:

1. a pre-processing unit; 11. cleaning the assembly; 111. a water storage tank; 112. rolling the brush; 113. a sewage draining outlet; 114. a cavity; 12. an ultrasonic processor; 13. an annular baffle;

2. a material separation unit; 21. rotating the rod; 22. a support plate; 23. a sleeve; 24. an opening;

3. a drying assembly; 31. a material receiving plate; 32. a feeding member; 33. a fan;

4. a material screening unit; 41. a material distributing bin; 42. a magnetic suction roller; 44. a material conveying channel;

5. a transfer member; 51. a carrying cavity; 52. a feeding port; 53. a flexible member;

6. a crushing unit; 61. rolling a roller; 611. a tooth-shaped structure; 62. a crushing box; 63. a drive motor;

7. a waste disposal unit; 71. a collection box; 72. filtering with a screen;

8. a material distributing table.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Because the existing waste metal recovery device is difficult to effectively remove stains and oxides attached to the waste metal during cleaning operation, and the existing waste metal recovery device has the main function of crushing the waste metal and has a single function, the invention designs a waste metal recovery device, which comprises the following components as shown in fig. 1-5: the device comprises a pretreatment unit 1, a screening unit 4 and a crushing unit 6; the discharging end of the pretreatment unit 1 faces the material screening unit 4, and the material screening unit 4 is communicated with the crushing unit 6;

the pretreatment unit 1 includes: a cleaning component 11 and an ultrasonic processor 12 (wherein the ultrasonic processor 12 is operated by adopting an external power supply mode); the ultrasonic processor 12 is arranged in the cleaning assembly 11 to perform ultrasonic treatment on the waste metal in the cleaning assembly 11 for removing stains and oxides on the surface of the workpiece

The cleaning assembly 11 includes: a bottomless and coverless water storage tank 111 and a rolling brush 112; the rolling brush 112 is rotatably arranged in the water storage tank 111, in actual operation, the rolling brush 112 mainly rotates through a servo motor which is arranged outside the water storage tank 111 and is externally connected with a 220V power supply, bristles on the rolling brush 112 are made of materials with higher hardness such as resin and palm fiber and are used for being in contact with waste metal to directly perform brushing operation, in actual operation, disinfectant water is selected in the water storage tank 111, and the waste metal needs to be soaked in the water storage tank 111 for 20min and then starts the brushing operation so as to be convenient for stains to fall off; a sewage discharge outlet 113 is formed in the side wall of the water storage tank 111, so that the cleaning liquid in the water storage tank 111 can be conveniently drained; the material separating unit 2 is rotatably arranged in the water storage tank 111, the water storage tank 111 is divided into a plurality of cavities 114, and for convenience of operation, the water storage tank 111 is divided into two cavities 114 through the material separating unit 2, the cavities 114 are respectively provided with the corresponding rolling brushes 112 and the ultrasonic processors 12, namely, each cavity 114 is internally provided with two rolling brushes 112 and one ultrasonic processor 12; the number of the sewage discharge outlets 113 is the same as that of the cavities 114, namely two sewage discharge outlets 113 are arranged; here, the drain outlets 113 are respectively provided on the left and right side walls of the water storage tank 111;

a drying component 3 is arranged between the screening unit 4 and the water storage tank 111; the drying assembly 3 comprises: a material receiving plate 31 arranged towards the water storage tank 111, a feeding piece 32 used for conveying the workpiece into the material screening unit 4, and a fan 33 arranged towards the material receiving plate 31 and the feeding piece 32; the fan 33 is arranged between the material receiving plate 31 and the feeding piece 32; the material receiving plate 31 is fixedly connected with a feeding piece 32; in actual operation, the device is arranged in a square bin, the pretreatment device is fixed at the top of the square bin, the top of the pretreatment device is arranged outside the square bin, the front end and the rear end of the material receiving plate 31 and the front end and the rear end of the feeding piece 32 in the drying assembly 3 are fixed at the front inner wall and the rear inner wall of the square bin, the fan 33 is fixed at the top of the square bin, and the air blowing port of the fan is vertically arranged downwards towards the material receiving plate 31 and the feeding piece 32 and is used for drying waste metal coming out of the water storage tank 111; the feeding member 32 is a conveyor belt structure adopted in the prior art, and the conveyor belt of the feeding member operates through an external 220V power supply; in actual operation, the material receiving plate 31 is arranged in the square bin and inclines downwards towards the feeding piece 32 so as to facilitate automatic blanking of the waste metal, and the material receiving plate 31 can also be arranged as a draining frame and used for draining water drops left on the waste metal;

the sieving unit 4 includes: a material distributing bin 41, a magnetic suction roller 42 and a material conveying channel 44; the material distribution bin 41 is provided with a material inlet 52 communicated with the drying component 3 and used for receiving the waste metal after drying operation, and the magnetic suction roller 42 is arranged between the material distribution bin 41 and the material conveying channel 44 and used for screening ferrous metals and non-ferrous metals; the material conveying channel 44 is communicated with a crushing device; whether the iron-based metal is magnetically attracted in the waste metal is realized by controlling whether the magnetic attraction roller 42 is electrified or not; when the electromagnetic suction roller 42 is powered on to run, ferrous metal is attached to the magnetic suction roller 42, and at the moment, non-ferrous metal is separated and preferentially falls down through the material conveying channel 44; after the magnetic attraction roller 42 stops electrifying, the ferrous metal is separated from the magnetic attraction roller 42 and falls down from the material conveying channel 44, thereby realizing the material distribution operation.

As shown in fig. 1, a waste disposal unit 7 is also included; the waste disposal unit 7 comprises: a collection tank 71 and a filter screen 72 detachably provided in the collection tank 71; the collecting box 71 is used for collecting waste cleaning liquid in the water storage tank 111 and communicating the water storage tank 111 to temporarily store the used cleaning liquid, and a pipeline can be inserted between the sewage outlet 113 and the waste treatment unit 7 during actual operation; and the drain 113 department blocks up there is the stopper to guarantee that the water storage box 111 is at the during operation, the cleaning solution can be effectively stored in the water storage box 111.

As shown in fig. 3, the material separation unit 2 includes: a rotating rod 21, a supporting plate 22 and a sleeve 23; the rotating rod 21 is rotatably inserted in the water storage tank 111; the outer surface of the rotating rod 21 is wrapped with a sleeve 23; the support plates 22 penetrate through the sleeves 23 and are fixed on the rotating rod 21, and an included angle between adjacent support plates 22 is set to be 90 degrees, that is, 4 support plates 22 are arranged on the sleeves 23, wherein one support plate 22 is used for separating the water storage tank 111 and dividing the water storage tank 111 into two cavities 114, and two adjacent support plates 22 located on the support plate 22 are used for bearing waste metal; in actual operation, the rotating rod 21 is located at the central axis of the water storage tank 111, and in order to facilitate transferring the waste metal on the supporting plate 22, the height of the outer wall of the water storage tank 111 can be far longer than the length of the supporting plate 22, so as to ensure that the waste metal can directly fall into another cavity 114 when rotating along with the supporting plate 22.

As shown in fig. 4, the sleeve 23 is circumferentially provided with openings 24 having the same number as the support plate 22; a space communicated with the opening 24 is arranged in the sleeve 23; the collecting tank 71 corresponds to the sleeve 23, so that the cleaning liquid in the water storage tank 111 can directly flow into the collecting tank 71 from the sleeve 23; the water storage tank 111 is provided with annular baffles 13 which are abutted against the opening 24, specifically four annular baffles 13 which are circumferentially arranged in the inner cavity of the sleeve 23, an opening is reserved between the adjacent annular baffles 13, and a space for the cleaning solution to pass through is reserved between the annular baffles 13 and the sleeve 23, as shown in fig. 3, at the moment, the inner wall of the sleeve 23 and the outer wall of the annular baffles 13 are abutted against each other; at this time, a storage space for containing the cleaning liquid is formed between the water storage tank 111 and the support plate 22; when the rotating rod 21 rotates, a gap is formed between the inner wall of the sleeve 23 and the annular baffle 13, the cleaning solution flows into the space from the opening 24, and in actual operation, a flow guide pipeline can be arranged at the opening 24 and used for directly guiding the cleaning solution to the collecting box 71.

In addition, in actual operation, in order to ensure the mechanical physical property of the rotation rod 21, a protective cover can be sleeved on the outer surface of the rotation rod 21 to prevent the rotation rod 21 from directly contacting the cleaning solution; and the diversion pipeline that above-mentioned was equipped with sets up the position department that both ends and square storehouse were laminated mutually around sleeve 23 to can be convenient for sleeve 23 to rotate when fixed honeycomb duct, and when moving, connect flitch 31 slope to extend to the left side of bottom sprag board 22, in order to be used for accepting the work piece on the backup pad 22 completely.

As shown in fig. 5, the transfer member 5 with a built-in loading cavity 51 rotates in the distribution bin 41; the magnetic suction roller 42 is rotatably arranged in the transfer member 5; the discharge end of the material distribution bin 41 is arranged towards the transfer piece 5, and a feeding port 52 communicated with the carrying cavity 51 is arranged in the transfer piece 5; the transfer piece 5 can rotate to be opposite to the feeding port 52 or abut against the outlet end of the material distributing bin 41; specifically, the material distributing bin 41 is arranged in a funnel shape with a large upper part and a small lower part, and the inlet end of the material distributing bin is arranged towards the right blanking end of the feeding piece 32; the transfer piece 5 is directly arranged at the discharge end of the material distribution bin 41, the transfer piece 5 is cylindrical, the transfer piece 5 is controlled by an external driving motor 63 to rotate, the outer wall of the transfer piece 5 is abutted against the outer wall of the material distribution bin 41, when the transfer piece 5 is driven to load materials and rotate, the rest materials are still temporarily stored in the material distribution bin 41, and the magnetic suction roller 42 is directly arranged in the transfer piece 5 and can be used for loading iron waste metals firstly and driving the waste metals to sequentially rotate through the material transmission channel 44.

As shown in fig. 1, the magnetic suction roller 42 is provided with flexible members 53 in an annular array; the flexible piece 53 can sequentially penetrate through the feeding port 52 and the discharge end of the material distribution bin 41 and extend into the material distribution bin 41, the main function of the flexible piece 53 is to ensure that a relative gap is reserved between the waste metals, so that the waste metals can be conveniently fed back, and the flexible piece 53 is made of silica gel and rubber products; when the effect of physically separating the waste metals is achieved, the flexible piece 53 can extend out of the feeding port 52 and can be contacted and shaken with other machines, so that the waste metals in the part clamped in the feeding piece 32 can be loosened, and the blanking of the waste metals is facilitated; in actual operation, the flexible part 53 is set to be strip-shaped, and is arranged along the axial direction of the magnetic attraction roller 42 at intervals, and the magnetic attraction roller 42 can rotate when rotating through an external straight brush motor, so as to ensure that the waste metal of iron can be uniformly attached to the magnetic attraction roller 42.

As shown in fig. 1, at least two groups of the material conveying channels 44 are provided; the transfer pieces 5 are communicated with the corresponding material conveying channels 44 one by one through rotation, and the outer walls of the transfer pieces are abutted against the inlet ends of the rest material conveying channels 44; be equipped with the old and useless metal that multiunit passed material passageway 44 was used for transmitting different metallic element promptly, and when actual operation, because be equipped with between the adjacent material passageway 44 and rotate the arc outer wall that offsets with rotating to avoid old and useless metal can drop in here, pass the one end fixed connection of material passageway 44 and branch feed bin 41 contact simultaneously, so that in the old and useless metal can directly fall into and pass material passageway 44, guarantee the compactness of conveying the material.

As shown in fig. 1, a material distributing table 8 is arranged at the bottom of the first end material conveying channel 44 corresponding to the material inlet 52 along the rotating direction of the rotating member; the rest of the material conveying channels 44 are communicated with the crushing unit 6, and in actual operation, the material conveying channel 44 positioned on the left side is used for conveying non-ferrous waste metal, and the right side of the material conveying channel is provided with a material distributing table 8 which needs to be conveyed into the rest of equipment for sorting operation; the bottoms of the material conveying channels 44 on the right side are different, specifically, the bottoms are obliquely arranged towards the lower right, and the right side of the material conveying channels is provided with a material outlet for allowing the materials to fall out, so that the materials are directly conveyed to the material distribution table 8 (in addition, the material distribution table 8 can be directly arranged in a conveyor belt manner, so that the nonferrous waste metals are directly conveyed into the rest of the working devices, and the ordered falling of the materials in the pipelines in the material conveying channels 44 is ensured); the right material conveying channel 44 can be directly provided with a straight-tube-shaped falling structure, and waste materials are directly crushed through the crushing unit 6.

The working principle is as follows: when the rotating part is driven to rotate, waste metal is accumulated in the carrying cavity 51 at the moment, the magnetic suction roller 42 synchronously operates when the rotating part rotates, so that iron waste metal is adsorbed on the magnetic suction roller 42, after one end of the rotating part, which is provided with the feeding port 52, gradually rotates rightwards to the first material conveying channel 44, the waste metal which is not influenced by the magnetic suction roller 42 directly falls into the material conveying channel 44 under the influence of gravity, the rotating part continuously rotates, after the discharging port rotates to the second material conveying channel 44, the magnetic suction roller 42 stops operating, and at the moment, the iron metal directly falls into the material conveying channel 44 on the left side from the discharging port; the PLC processor is mainly used for controlling whether the magnetic suction roller 42 is electrified or not through an external PLC processor, and the PLC processor detects the rotating path of the rotating piece through timing and controls whether the magnetic suction roller 42 is electrified or not so as to achieve material distribution operation.

As shown in fig. 1, the crushing unit 6 includes: a crushing box 62, a rolling roller 61 rotatably arranged in the crushing box 62, and a driving motor 63 for driving the rolling roller 61 to run; the driving motor 63 drives the rolling roller 61 to operate through an arranged transmission belt assembly; the rolling roller 61 is provided with a plurality of tooth-shaped structures 611; wherein, the rolling rolls 61 are arranged according to the extension length of the crushing box 62, and the corresponding tooth-shaped structures 611 between the adjacent rolling rolls 61 are arranged in a crossing way, so that the waste metal can be directly crushed.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A waste metal recovery device, characterized by comprising: the device comprises a pretreatment unit (1), a screening unit (4) and a crushing unit (6); the discharging end of the pretreatment unit (1) faces the screening unit (4), and the screening unit (4) is communicated with the crushing unit (6);

the pre-processing unit (1) comprises: a cleaning component (11) and an ultrasonic processor (12); the ultrasonic processor (12) is arranged in the cleaning component (11),

the washing assembly (11) comprises: a water storage tank (111) and a rolling brush (112); the rolling brush (112) is rotatably arranged in the water storage tank (111); a sewage draining outlet (113) is arranged on the water storage tank (111); the water storage tank (111) is rotatably provided with a partition unit (2), the water storage tank (111) is divided into a plurality of cavities (114), and the cavities (114) are internally provided with corresponding rolling brushes (112) and ultrasonic processors (12) respectively; the set number of the sewage outlets (113) is consistent with that of the cavities (114);

a drying component (3) is arranged between the screening unit (4) and the water storage tank (111); the drying assembly (3) comprises: the device comprises a material receiving plate (31) arranged towards the water storage tank (111), a feeding piece (32) used for conveying workpieces into the material screening unit (4), and a fan (33) arranged towards the material receiving plate (31) and the feeding piece (32); the fan (33) is arranged between the material receiving plate (31) and the feeding piece (32); the material receiving plate (31) is fixedly connected with a feeding piece (32);

the screening unit (4) comprises: a material distributing bin (41), a magnetic suction roller (42) and a material conveying channel (44); the material distribution bin (41) is provided with a material outlet communicated with the drying component (3), and the magnetic suction roller (42) is arranged between the material distribution bin (41) and the material conveying channel (44) and is used for screening ferrous metals and non-ferrous metals; at least one material conveying channel (44) is communicated with a crushing device;

the crushing unit (6) is at least provided with a group of crushing units (6) and is used for crushing the workpieces falling from the material conveying channel (44).

2. A plant for the recovery of metals from waste, as claimed in claim 1, characterized by comprising a waste treatment unit (7); the waste treatment unit (7) comprises: the collecting box (71) and the filter screen (72) are detachably arranged in the collecting box (71); the collecting tank (71) is used for collecting the cleaning waste liquid (113) in the water storage tank.

3. The scrap metal recycling apparatus in accordance with claim 2, wherein the partition unit (2) comprises: a rotating rod (21), a supporting plate (22) and a sleeve (23); the rotating rod (21) is rotatably inserted in the water storage tank (111); the outer surface of the rotating rod (21) is wrapped with a sleeve (23); the support plates (22) penetrate through the sleeve (23) and are fixed on the rotating rod (21), and the included angle between every two adjacent support plates (22) is set to be 90 degrees.

4. A scrap metal recycling apparatus in accordance with claim 3, wherein the sleeve (23) is provided with openings (24) in the circumferential direction in the same number as the supporting plate (22); a space communicated with the opening (24) is arranged in the sleeve (23); the collecting box (71) corresponds to the sleeve (23); an annular baffle (13) which is propped against the opening (24) is erected on the water storage tank (111).

5. The scrap metal recycling apparatus in accordance with claim 2, wherein the distribution bin (41) is provided with a transfer member (5) with a loading cavity (51) therein; the magnetic suction roller (42) is rotationally arranged in the transfer piece (5); the discharge end of the material distribution bin (41) faces the transfer piece (5), and a feeding port (52) communicated with the loading cavity (51) is formed in the transfer piece (5); the transfer piece (5) can rotate to a position opposite to the feeding port (52) or against the outlet end of the material distribution bin (41).

6. The scrap metal recycling apparatus in accordance with claim 5, wherein the magnetic suction rolls (42) are provided with annular arrays of flexible members (53); the flexible piece (53) can sequentially penetrate through the feeding port (52) and the discharge end of the material distribution bin (41) and extend into the material distribution bin (41).

7. The scrap metal recycling apparatus in accordance with claim 6, wherein there are at least two sets of the transfer passages (44); the transfer pieces (5) are communicated with the corresponding material conveying channels (44) one by one through rotation, and the outer walls of the transfer pieces are propped against the inlet ends of the rest material conveying channels (44).

8. The scrap metal recycling apparatus in accordance with claim 7, wherein a distribution table (8) is provided along the rotation direction of the rotary member to the bottom of the first end material conveying passage (44) corresponding to the material inlet (52); the rest material conveying channels (44) are communicated with the crushing unit (6).

9. The scrap metal recycling apparatus according to claim 1, characterised in that the crushing unit (6) comprises: the device comprises a crushing box (62), a rolling roller (61) rotationally arranged in the crushing box (62), and a driving motor (63) for driving the rolling roller (61) to run; the driving motor (63) drives the rolling roller (61) to operate through the arranged transmission belt assembly; the rolling roller (61) is provided with a plurality of tooth-shaped structures (611).