CN116851081A - Roller type metal separator for construction waste conveying belt - Google Patents
Roller type metal separator for construction waste conveying belt Download PDFInfo
- Publication number
- CN116851081A CN116851081A CN202311001614.7A CN202311001614A CN116851081A CN 116851081 A CN116851081 A CN 116851081A CN 202311001614 A CN202311001614 A CN 202311001614A CN 116851081 A CN116851081 A CN 116851081A
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- China
- Prior art keywords
- roller
- construction waste
- crushing
- metal separator
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002184 metal Substances 0.000 title claims abstract description 56
- 239000002699 waste material Substances 0.000 title claims abstract description 56
- 238000010276 construction Methods 0.000 title claims abstract description 54
- 238000007790 scraping Methods 0.000 claims abstract description 13
- 239000003351 stiffener Substances 0.000 claims abstract 4
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000010813 municipal solid waste Substances 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 abstract description 7
- 238000010298 pulverizing process Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
Landscapes
- Refuse Collection And Transfer (AREA)
Abstract
The invention belongs to the technical field of construction waste treatment devices, and particularly discloses a roller type metal separator for a construction waste conveying belt, which comprises a device support, a supporting seat, a mounting frame, a baffle and a scraping plate, wherein the top of the device support is provided with a top frame; the mounting bracket inboard is equipped with magnetism and absorbs roller and baffle, and the mounting bracket side is equipped with the second driving motor, and the device support is close to one side symmetry that magnetism absorbed the roller and is equipped with the bracing piece, is equipped with the stiffener on the bracing piece, is equipped with the link on the stiffener, rotates on the link and is connected with the dwang, evenly is equipped with a plurality of scrapers on the dwang, and the link side is equipped with the third driving motor, adsorbs the metal in the construction waste through magnetism and absorbs the roller, scrapes down the metal on the roller through scraper blade cooperation baffle, realizes automatic clearance.
Description
Technical Field
The invention relates to the technical field of construction waste treatment devices, in particular to a roller type metal separator of a construction waste conveying belt.
Background
The construction waste is other wastes such as dregs and waste materials generated in the process of constructing, paving or dismantling various buildings, structures, pipe networks and the like by construction units or individuals, and the metal is mixed in the waste, so that the metal and the waste are required to be separated, and the metal is conveniently recycled.
When the existing construction waste is subjected to metal separation, the construction waste mixed with metal is generally conveyed by adopting a conveying belt, then the metal in the construction waste is adsorbed by a conveying belt type magnetic attraction device, so that the effect of separating the metal in the construction waste is achieved, but after the metal is adsorbed by the magnetic attraction device, the metal is attached to the magnetic attraction device, if the metal needs to be separated from the magnetic attraction device, the metal needs to be manually removed from the magnetic attraction device, or after the magnetic attraction device is used, the power supply is disconnected by the magnetic attraction device, so that the magnetic attraction device is demagnetized, and the metal on the magnetic attraction device automatically falls off. The mechanisms are very complicated, and if the metal on the magnetic attraction device cannot be cleaned timely, the metal on the magnetic attraction device is more and more dense, so that the magnetic attraction effect is affected.
Disclosure of Invention
The invention aims to provide a roller type metal separator for a construction waste conveying belt, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the roller type metal separator for the construction waste conveying belt comprises a device support, a supporting seat, a mounting frame, a baffle and a scraping plate, wherein a top frame is arranged at the top of the device support, a conveying frame is arranged on the inner side of the device support, a plurality of driving rollers are uniformly arranged on the conveying frame, a conveying belt is wound on the driving rollers, the mounting frame is arranged at the end part of the conveying frame, the supporting seat is arranged at the position above the conveying frame far away from the mounting frame, and a crushing box is arranged on the supporting seat; the inner side of the mounting frame is provided with a magnetic suction roller and a baffle, the magnetic suction roller is rotationally connected to the mounting frame, the baffle is positioned on the side edge of the magnetic suction roller and is detachably fixed on the mounting frame, the side edge of the mounting frame is provided with a second driving motor, the second driving motor is connected with the magnetic suction roller, one side of the device bracket, which is close to the magnetic suction roller, is symmetrically provided with a supporting rod, a reinforcing rod is arranged on the supporting rod, a connecting frame is arranged on the reinforcing rod, a rotating rod is rotationally connected to the connecting frame, the rotating rod is parallel to the magnetic suction roller, a plurality of scraping plates are uniformly arranged on the rotating rod, a third driving motor is arranged on the side edge of the connecting frame, and the third driving motor is connected with the rotating rod; through placing the bin that is used for storing construction waste and metal respectively in mounting bracket and link below, construction waste carries through the conveyer belt, when carrying to mounting bracket department, construction waste just can be because gravity whereabouts, the metal in the construction waste is adsorbed through the magnetism roller that absorbs in the whereabouts in-process, construction waste then can fall into the bin that stores construction waste, and the metal of absorption on the magnetism roller just can follow magnetism roller and rotate together, until blocked by the baffle by the metal, then scrape down the metal from the magnetism roller through the rotatory drive scraper blade of dwang, finally fall in the bin of link below and store.
Preferably, the crushing box top is equipped with the charge door, and crushing box below is equipped with the discharge gate, and the symmetry is equipped with the supporting pad on the supporting seat, and the supporting pad side is detachable to be fixed on crushing box, props up crushing box through the supporting pad.
Preferably, two crushing rollers are symmetrically arranged in the crushing box, the two crushing rollers are mutually parallel and rotationally connected to the crushing box, a first driving motor is arranged on one side of the crushing box, two gears corresponding to the crushing rollers are symmetrically arranged on the other side of the crushing box, the first driving motor is connected with one of the crushing rollers, the two gears are respectively connected with the corresponding crushing rollers, the two gears are meshed with each other, one of the crushing rollers is driven to rotate by the first driving motor, the crushing rollers drive the gears to rotate, and therefore the gears are utilized to drive the two crushing rollers to rotate simultaneously, so that construction waste entering the crushing box is crushed; the first driving motor, the second driving motor and the third driving motor all adopt servo motors.
Preferably, the supporting seat side is equipped with the connecting plate, evenly is equipped with a plurality of dispersion poles on the connecting plate, and at the in-process of conveyer belt conveying construction waste, the effect of dispersion pole mainly used with rubbish dispersion.
Preferably, the scraping plate is made of silica gel material, and the scraping plate made of silica gel material can prevent the magnetic suction roller from generating adsorption force to the scraping plate.
Preferably, a plurality of lifting lugs are uniformly arranged on the side edge of the conveying frame, and the lifting lugs are welded on the conveying frame.
Preferably, a plurality of slings are uniformly arranged on the top frame, the ends of the slings are respectively connected to the lifting lugs, and the overall stability of the conveying frame is improved through the slings.
Preferably, the roof-rack adopts many U type channel-section steel welding to form to the roof-rack adopts the bolt fastening on the device support, with this detachable installation that realizes the roof-rack, improves the stability of roof-rack hoist cable simultaneously.
Preferably, the reinforcing rod is L-shaped, and the reinforcing rib is arranged on the inner side of the reinforcing rod, and the reinforcing rod mainly plays a role in improving the overall stability of the connecting frame.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, when the construction waste is conveyed to the mounting frame through the conveying belt, the construction waste can fall down due to gravity, the metal in the construction waste is adsorbed by the magnetic suction roller in the falling process, the metal adsorbed on the magnetic suction roller can rotate along with the magnetic suction roller until the metal is blocked by the baffle, the scraping plate is driven to rotate by the rotating rod, the metal is scraped from the magnetic suction roller by the scraping plate, automatic cleaning of the metal on the magnetic suction roller is realized, manual treatment is not needed, the practicability of the device is effectively improved, and the labor capacity of workers is reduced.
Drawings
FIG. 1 is a schematic perspective view of the first embodiment of the present invention;
FIG. 2 is a schematic diagram of a second perspective structure of the present invention;
FIG. 3 is a schematic view of a partial cross-sectional structure of the present invention;
fig. 4 is a schematic diagram of the front structure of the present invention.
In the figure: 1. a device holder; 101. a top frame; 2. a carriage; 201. a driving roller; 202. a conveyor belt; 203. lifting lugs; 3. a support base; 301. a support pad; 4. a crushing box; 401. a feed inlet; 402. a discharge port; 403. a pulverizing roller; 404. a first driving motor; 405. a gear; 5. a connecting plate; 501. a dispersion rod; 6. a mounting frame; 601. a magnetic suction roller; 602. a second driving motor; 7. a baffle; 8. a support rod; 801. a reinforcing rod; 802. a connecting frame; 803. a rotating lever; 8031. a scraper; 804. a third driving motor; 9. slings are provided.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a building rubbish conveyer belt gyro wheel formula metal separator, includes device support 1, supporting seat 3, mounting bracket 6, baffle 7 and scraper blade 8031, device support 1 top is equipped with roof-rack 101, and device support 1 inboard is equipped with carriage 2, evenly is equipped with a plurality of driving rollers 201 on the carriage 2, twines on the driving roller 201 has conveyer belt 202, and carriage 2 tip is equipped with mounting bracket 6, and carriage 2 top is kept away from the position of mounting bracket 6 and is equipped with supporting seat 3, is equipped with crushing case 4 on the supporting seat 3; the inner side of the installation frame 6 is provided with a magnetic suction roller 601 and a baffle 7, the magnetic suction roller 601 is rotationally connected to the installation frame 6, the baffle 7 is positioned on the side edge of the magnetic suction roller 601 and is detachably fixed on the installation frame 6, a second driving motor 602 is arranged on the side edge of the installation frame 6, the second driving motor 602 is connected with the magnetic suction roller 601, a supporting rod 8 is symmetrically arranged on one side, close to the magnetic suction roller 601, of the device bracket 1, a reinforcing rod 801 is arranged on the supporting rod 8, a connecting frame 802 is arranged on the reinforcing rod 801, a rotating rod 803 is rotationally connected to the connecting frame 802, the rotating rod 803 is parallel to the magnetic suction roller 601, a plurality of scraping plates 8031 are uniformly arranged on the rotating rod 803, a third driving motor 804 is arranged on the side edge of the connecting frame 802, and the third driving motor 804 is connected with the rotating rod 803; through placing the bin that is used for storing construction waste and metal respectively in mounting bracket 6 and link 802 below, construction waste carries through conveyer belt 202, when carrying to mounting bracket 6 department, construction waste just can be because gravity whereabouts, and the metal in the construction waste is adsorbed through magnetic attraction roller 601 in the whereabouts in-process, and construction waste then can fall into the bin that stores construction waste, and the metal of adsorbing on magnetic attraction roller 601 just can follow magnetic attraction roller 601 and rotate together, until blocked by baffle 7 by the metal, then through the rotatory scraper blade 8031 of driving of dwang 803 scrapes down metal from magnetic attraction roller 601, finally falls in the bin of link 802 below and stores.
Further, a feed inlet 401 is arranged above the crushing box 4, a discharge outlet 402 is arranged below the crushing box 4, supporting pads 301 are symmetrically arranged on the supporting seat 3, the side edges of the supporting pads 301 are detachably fixed on the crushing box 4, and the crushing box 4 is supported up through the supporting pads 301.
Further, two pulverizing rollers 403 are symmetrically arranged inside the pulverizing box 4, the two pulverizing rollers 403 are parallel to each other and are rotationally connected to the pulverizing box 4, a first driving motor 404 is arranged on one side of the pulverizing box 4, two gears 405 corresponding to the pulverizing rollers 403 are symmetrically arranged on the other side of the pulverizing box 4, the first driving motor 404 is connected with one of the pulverizing rollers 403, the two gears 405 are respectively connected with the corresponding pulverizing roller 403, and the two gears 405 are meshed with each other, one of the pulverizing rollers 403 is driven to rotate by the first driving motor 404, so that the pulverizing roller 403 drives the gears 405 to rotate, and the two pulverizing rollers 403 are driven to rotate simultaneously by the gears 405 to pulverize construction waste entering the pulverizing box 4; the first drive motor 404, the second drive motor 602, and the third drive motor 804 all employ servo motors.
Further, the side of the supporting seat 3 is provided with a connecting plate 5, the connecting plate 5 is uniformly provided with a plurality of dispersing rods 501, and the dispersing rods 501 are mainly used for dispersing the garbage in the process of conveying the construction garbage by the conveying belt 202.
Further, the scraper 8031 is made of a silica gel material, and the scraper 8031 made of the silica gel material can prevent the magnetic suction roller 601 from generating adsorption force to the scraper 8031.
Further, a plurality of lifting lugs 203 are uniformly arranged on the side edge of the conveying frame 2, and the lifting lugs 203 are welded on the conveying frame 2.
Further, the top frame 101 is uniformly provided with a plurality of slings 9, the ends of the slings 9 are respectively connected to the lifting lugs 203, and the overall stability of the conveying frame 2 is improved through the slings 9.
Further, the top frame 101 is formed by welding a plurality of U-shaped channel steel, and the top frame 101 is fixed on the device bracket 1 by bolts, so that the detachable installation of the top frame 101 is realized, and meanwhile, the stability of the sling 9 of the top frame 101 is improved.
Further, the reinforcing rod 801 is L-shaped, and reinforcing ribs are provided on the inner side of the reinforcing rod 801, and the reinforcing rod 801 mainly plays a role in improving the overall stability of the connecting frame 802.
Working principle: before using, place the bin that is used for storing construction waste and metal respectively in mounting bracket 6 and link 802 below, during the use, through joining construction waste from the charge door 401 of smashing case 4, start first driving motor 404 simultaneously, make first driving motor 404 drive one of them crushing roller 403 rotatory, and make this crushing roller 403 drive gear 405 rotatory, make gear 405 drive two crushing rollers 403 rotatory simultaneously, utilize crushing roller 403 to smash the processing to construction waste, prevent that there is metal in the partly massive construction waste, the metal after smashing just can leak from discharge gate 402 and fall on conveyer belt 202.
The crushed construction waste is conveyed through the conveying belt 202, in the process, the construction waste passes through the dispersing rod 501, the dispersing rod 501 is matched with the vibration of the device body to scatter the construction waste, the construction waste is prevented from piling up, the second driving motor 602 is started to drive the magnetic suction roller 601 to rotate, when the conveying belt 202 conveys the construction waste to the installation frame 6, the construction waste falls down due to gravity, metal in the construction waste is adsorbed by the magnetic suction roller 601 in the falling process, the construction waste falls into a storage box below the installation frame 6 to be stored, the metal adsorbed on the magnetic suction roller 601 can rotate along with the magnetic suction roller 601 until being blocked by the metal by the baffle 7, then the third driving motor 804 is started, the third driving motor 804 is used for driving the rotating rod 803 to rotate, the metal is scraped from the magnetic suction roller 601 by the scraping plate 8031 on the rotating rod 803, and finally the metal on the magnetic suction roller 601 falls into the storage box below the connecting frame 802 to be stored, so that the metal on the magnetic suction roller 601 is automatically cleaned.
Notably, are: the whole device controls the realization of the device through the total control button, and because the equipment matched with the control button is common equipment, the device belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated here.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a building rubbish conveyer belt gyro wheel formula metal separator which characterized in that: the device comprises a device support (1), a supporting seat (3), a mounting frame (6), a baffle (7) and a scraping plate (8031), wherein a top frame (101) is arranged at the top of the device support (1), a conveying frame (2) is arranged on the inner side of the device support (1), a plurality of driving rollers (201) are uniformly arranged on the conveying frame (2), a conveying belt (202) is wound on the driving rollers (201), the mounting frame (6) is arranged at the end part of the conveying frame (2), the supporting seat (3) is arranged at the position, far away from the mounting frame (6), above the conveying frame (2), and a crushing box (4) is arranged on the supporting seat (3); the inside magnet roller (601) and baffle (7) that are equipped with of mounting bracket (6), magnet roller (601) rotate and connect on mounting bracket (6), baffle (7) are located magnet roller (601) side and detachable fix on mounting bracket (6), mounting bracket (6) side is equipped with second driving motor (602), second driving motor (602) are connected with magnet roller (601), one side symmetry that device support (1) is close to magnet roller (601) is equipped with bracing piece (8), be equipped with stiffener (801) on bracing piece (8), be equipped with link (802) on stiffener (801), rotate on link (802) and be connected with dwang (803), dwang (803) are parallel with magnet roller (601), evenly be equipped with a plurality of scraping plates (8031) on dwang (803), link (802) side is equipped with third driving motor (804), third driving motor (804) are connected with dwang (803).
2. A roller metal separator for a conveyor belt for construction waste according to claim 1, wherein: the utility model discloses a crushing box, including crushing case (4), supporting seat (3), crushing case (4) top is equipped with charge door (401), and crushing case (4) below is equipped with discharge gate (402), and the symmetry is equipped with supporting pad (301) on supporting seat (3) to supporting pad (301) side detachable is fixed on crushing case (4).
3. A roller metal separator for a conveyor belt for construction waste according to claim 1, wherein: crushing case (4) inside symmetry is equipped with two crushing rollers (403), two crushing rollers (403) are parallel to each other and rotate and connect on crushing case (4), crushing case (4) one side is equipped with first driving motor (404), crushing case (4) opposite side symmetry is equipped with two gears (405) that correspond with crushing roller (403), first driving motor (404) are connected with one of them crushing roller (403), two gears (405) are connected with crushing roller (403) that correspond respectively, and two gears (405) intermesh.
4. A roller metal separator for a conveyor belt for construction waste according to claim 1, wherein: the side of the supporting seat (3) is provided with a connecting plate (5), and a plurality of dispersing rods (501) are uniformly arranged on the connecting plate (5).
5. A roller metal separator for a conveyor belt for construction waste according to claim 1, wherein: the scraping plate (8031) is made of silica gel materials.
6. A roller metal separator for a conveyor belt for construction waste according to claim 1, wherein: a plurality of lifting lugs (203) are uniformly arranged on the side edge of the conveying frame (2), and the lifting lugs (203) are welded on the conveying frame (2).
7. A roller metal separator for a conveyor belt for construction waste according to claim 1, wherein: a plurality of slings (9) are uniformly arranged on the top frame (101), and the ends of the slings (9) are respectively connected to the lifting lugs (203).
8. A roller metal separator for a conveyor belt for construction waste according to claim 1, wherein: the top frame (101) is formed by welding a plurality of U-shaped channel steel, and the top frame (101) is fixed on the device bracket (1) by bolts.
9. A roller metal separator for a conveyor belt for construction waste according to claim 1, wherein: the reinforcing rod (801) is L-shaped, and reinforcing ribs are arranged on the inner side of the reinforcing rod (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311001614.7A CN116851081A (en) | 2023-08-09 | 2023-08-09 | Roller type metal separator for construction waste conveying belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311001614.7A CN116851081A (en) | 2023-08-09 | 2023-08-09 | Roller type metal separator for construction waste conveying belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116851081A true CN116851081A (en) | 2023-10-10 |
Family
ID=88228728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311001614.7A Pending CN116851081A (en) | 2023-08-09 | 2023-08-09 | Roller type metal separator for construction waste conveying belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116851081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117943200A (en) * | 2024-03-14 | 2024-04-30 | 山东上元再生资源有限公司 | Magnetic separation device for scrap steel recycling and cleaning |
-
2023
- 2023-08-09 CN CN202311001614.7A patent/CN116851081A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117943200A (en) * | 2024-03-14 | 2024-04-30 | 山东上元再生资源有限公司 | Magnetic separation device for scrap steel recycling and cleaning |
| CN117943200B (en) * | 2024-03-14 | 2024-06-07 | 山东上元再生资源有限公司 | Magnetic separation device for scrap steel recycling and cleaning |
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