Screening device for waste steel recovery

Abstract

The screening device comprises a conveyor, magnetic separation mechanisms are arranged beside the conveyor, the magnetic separation mechanisms are located on the two sides of the conveyor, each magnetic separation mechanism comprises a servo motor and a carrier plate located above the conveyor, an electromagnetic chuck is installed at the bottom of each carrier plate, the carrier plates are driven by the servo motors to rotate, and the electromagnetic chucks are arranged on the carrier plates. And material receiving boxes are arranged on the two sides of the conveyor. Compared with the prior art, the conveyor and the magnetic separation mechanism are arranged, iron metal located on the conveyor is adsorbed through the electromagnetic suction cup, then magnetism of the iron metal is lost by disconnecting an electrified loop of the electromagnetic suction cup, and therefore the iron metal falls into the material collecting box, and separation and collection operation of the iron metal is completed in sequence. And the magnetic separation mechanisms arranged on the two sides are matched for alternate operation, iron metal omission is avoided, shutdown or manual intervention is not needed in the whole process, use is more convenient, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to scrap steel recycling technical field, especially in scrap steel recycling screening device. BACKGROUND

[0002] The process of scrap steel recycling generally includes collection and classification, shearing, briquetting, crushing, cleaning and impurity removal, and processing and purification. The classification of scrap steel is to separate ferrous metals by magnetic separation method, to distinguish galvanized scrap steel, ordinary scrap steel and other metal impurities, and to ensure the purity of raw materials. In the prior art, ferrous metals in scrap steel are generally separated by a belt magnetic separator. Although this can achieve the purpose of separating ferrous metals, in actual application, it is inconvenient to quickly discharge the separated ferrous metals. The ferrous metals can only be taken out manually or by stopping the machine, which affects work efficiency and is not conducive to practical application. Therefore, we propose a screening device for scrap steel recycling. SUMMARY

[0003] To solve the above problems, the utility model provides a screening device for scrap steel recycling.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] The utility model discloses a screening device for scrap steel recycling, which comprises a conveyor, a magnetic separation mechanism is arranged beside the conveyor, the magnetic separation mechanism is located on both sides of the conveyor, the magnetic separation mechanism comprises a servo motor and a carrier plate located above the conveyor, an electromagnetic chuck is mounted at the bottom of the carrier plate, the carrier plate is driven to rotate by the servo motor, and a material collecting box is arranged on both sides of the conveyor.

[0006] In the above scheme, the head of the conveyor is provided with an inlet chute, a support frame is fixed at the bottom of one end of the inlet chute, and a bearing frame is fixed below the inlet chute at one end close to the inlet chute of the conveyor.

[0007] In the above scheme, the end of the conveyor is provided with a box body, a material collecting box is arranged in the box body, and a feeding port is formed in the upper end of the box body.

[0008] In the above scheme, the magnetic separation mechanism is at least provided with a pair, and the magnetic separation mechanisms are uniformly arranged along the conveyor.

[0009] In the above scheme, the magnetic separation mechanism further comprises a mounting bracket, a driving shaft is rotatably mounted in the mounting bracket, the top end of the driving shaft is fixed with the carrier plate, a belt pulley is mounted on the output shaft of the servo motor and the driving shaft, and a belt is connected between the belt pulleys.

[0010] In the above scheme, a trigger switch is mounted at the top end of the mounting bracket, and a cam that can contact the trigger switch is mounted on the driving shaft.

[0011] The box is internally provided with a fan, and the conveyor head is provided with a dust collecting box, and the dust collecting box is provided with a collecting opening.

[0012] The advantages and beneficial effects of the utility model are that: through setting up conveyor and magnetic separation mechanism, using the magnetic separation mechanism distributed in both sides of conveyor, separating the scrap steel mixed with ferrous metal on conveyor, making the separation operation and the conveying of scrap steel synchronous, saving the time of separate separation, improving the work efficiency, compared with the prior art, using electromagnetic chuck, adsorbing the ferrous metal on conveyor, then through servo motor, indirectly making driving shaft rotate, and then making the carrier plate drive electromagnetic chuck to rotate away from conveyor, at this time, breaking the power circuit of electromagnetic chuck, making it lose magnetism, so that the ferrous metal falls into the material collecting box, sequentially completing the separation and collection operation of ferrous metal, improving the automation degree, and cooperating with the magnetic separation mechanism separately arranged on both sides to alternately operate, avoiding missing the ferrous metal on conveyor, so as to fully complete the screening operation of ferrous metal, without stopping or manual intervention throughout the process, more convenient to use, improving the work efficiency, through setting up trigger switch and cam, using driving shaft, making the carrier plate switch among different states, at the same time, driving the cam to rotate, when the carrier plate rotates away from conveyor, the cam will contact with trigger switch, then sending signal, making the magnetic separation mechanism on the other side return to the initial position, making the electromagnetic chuck adsorb the ferrous metal on conveyor, greatly improving the automation degree. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Figure 1 It is a front view of the screening device for scrap steel recovery provided by the utility model;

[0015] Figure 2 It is a structure schematic view of the box of the screening device for scrap steel recovery provided by the utility model;

[0016] Figure 3 It is a structure schematic view of the magnetic separation mechanism of the screening device for scrap steel recovery provided by the utility model;

[0017] Figure 4 It is a partial structure schematic view of the screening device for scrap steel recovery provided by the utility model.

[0018] In the figure: conveyor 1, feed slot 2, support frame 3, bearing frame 4, box 5, receiving box 6, fan 7, inlet 8, dust collection box 9, magnetic separation mechanism 10, mounting frame 101, drive shaft 102, carrier plate 103, electromagnetic chuck 104, servo motor 105, pulley 106, cam 107, trigger switch 108, receiving box 11, collection port 12. DETAILED DESCRIPTION

[0019] The specific embodiments of the utility model will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0020] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a screening device for scrap steel recycling, including conveyor 1;

[0021] Specifically, the conveyor 1 uses double-layer polyurethane and aramid fiber composite woven structure for conveying belt, which improves tensile strength, and the conveying belt surface is sprayed with tungsten carbide particles to improve wear resistance and prolong service life.

[0022] Further, the conveyor 1 is provided with a feed slot 2 at the head, and the feed slot 2 is fixed with a support frame 3 at the bottom of one end, which is made of high-strength steel plate and formed by laser welding to improve the carrying capacity and vibration frequency.

[0023] Further, the conveyor 1 is provided with a box 5 at the end, and the box 5 is provided with a receiving box 6 inside, and the inlet 8 is formed at the upper end of the box 5, and the non-ferrous metal enters the box 5 from the inlet 8 and falls into the receiving box 6, which can be hollowed out or transparent to observe the current capacity of the receiving box 6, so that the staff can replace the receiving box 6 in time to prevent the non-ferrous metal in the receiving box 6 from overflowing.

[0024] Further, the box 5 is provided with a fan 7, and the outlet of the fan 7 is at an angle of 15 degrees with the conveying belt surface of the conveyor 1, so as to effectively separate the dust on the conveying belt and achieve dust removal effect.

[0025] Specifically, in actual application, the dust collection box 9 can be optimized, and a cyclone separator and a HEPA filter screen are arranged in the dust collection box 9, and an ultrasonic vibration dust cleaning device is matched, which can not only collect dust but also filter and discharge air.

[0026] The conveying machine 1 is provided with a magnetic separation mechanism 10, the magnetic separation mechanism 10 is located on both sides of the conveying machine 1, the magnetic separation mechanism 10 comprises a servo motor 105 and a carrier plate 103 located above the conveying machine 1, the bottom of the carrier plate 103 is provided with an electromagnetic suction cup 104, wherein the electromagnetic suction cup 104 adopts a composite structure of a neodymium iron boron permanent magnet and a copper coil, and the energy consumption is reduced.

[0027] Specifically, in actual application, the electromagnetic suction cup 104 can be optimized, a Hall sensor array is integrated into the electromagnetic suction cup 104, the distribution density of the adsorbed metal can be dynamically detected, so that the magnetic induction strength is automatically adjusted, the energy consumption is further reduced, in addition, a temperature sensor can be installed on the electromagnetic suction cup 104, when the temperature sensor detects that the temperature exceeds the set value, the power is automatically reduced for operation.

[0028] The carrier plate 103 is driven to rotate by the servo motor 105, and the conveying machine 1 is provided with a material collecting box 11 on both sides, the material collecting box 11 is used for collecting ferrous metals.

[0029] Further, the magnetic separation mechanism 10 further comprises a mounting frame 101, the servo motor 105 is installed in the mounting frame 101, the servo motor 105 is integrated with a torque limiter, when the overload is detected, the power supply is automatically cut off and the reverse brake is started, a driving shaft 102 is rotatably installed in the mounting frame 101, one end of the driving shaft 102 is fixedly connected with the carrier plate 103, a belt pulley 106 is installed on the output shaft of the servo motor 105 and the driving shaft 102, and a belt is connected between the belt pulleys 106.

[0030] Specifically, the belt adopts a carbon fiber reinforced rubber synchronous belt, the tensile strength is improved, the transmission precision error is reduced, an automatic tensioning device is added, and the belt elongation is compensated in real time.

[0031] Further, the mounting frame 101 is provided with a trigger switch 108, the driving shaft 102 is fixedly provided with a cam 107 which can contact the trigger switch 108, the surface of the cam 107 is plated with hard chromium, the wear is reduced, and the service life is prolonged.

[0032] Specifically, the initial position of the carrier plate 103 is located directly above the conveying machine 1, the second position is that the carrier plate 103 is rotated by 180 degrees clockwise at the position, when the carrier plate 103 is at the initial position, the electromagnetic suction cup 104 performs the adsorption operation, and when the carrier plate 103 is at the second position, the release work is performed.

[0033] Specifically, by setting the trigger switch 108 and the cam 107, the carrier plate 103 is switched among different states by the driving shaft 102, and the cam 107 is rotated, when the carrier plate 103 rotates away from the conveyor, the cam 107 contacts the trigger switch 108, and then sends a signal, so that the magnetic separation mechanism 10 on the other side returns to the initial position, and the electromagnetic chuck 104 adsorbs the ferrous metal on the conveyor 1, which greatly improves the automation degree.

[0034] Further, the magnetic separation mechanism 10 is at least provided in pairs, and the magnetic separation mechanism 10 is evenly arranged along the conveyor 1.

[0035] Specifically, the distance between the magnetic separation mechanisms 10 on the same side is not less than the length of the carrier plate 103, so as to avoid interference between the carrier plates 103 during work, and ensure that the adjacent magnetic separation mechanisms 10 work independently and normally.

[0036] Specifically, by setting the conveyor 1 and the magnetic separation mechanism 10, the ferrous metal mixed with scrap steel on the conveyor 1 is separated by the magnetic separation mechanism 10 distributed on both sides of the conveyor 1, so that the separation operation and the conveying of the scrap steel are synchronized, and the time for separate separation is saved, and the work efficiency is improved.

[0037] Further, the mounting frame 101 is connected with the rack of the conveyor 1 through fasteners, and the magnetic separation mechanism 10 can be disassembled and assembled as a whole by disassembling the fasteners, so that the magnetic separation mechanism 10 is modularized, and is suitable for different conveyors 1 and other related equipment, and the flexibility of the magnetic separation mechanism 10 is improved, and the application range is expanded.

[0038] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A screening device for scrap recycling, comprising a conveyor (1), characterized in that, The conveyor (1) is provided with a magnetic separation mechanism (10) beside it, the magnetic separation mechanism (10) is located on both sides of the conveyor (1), the magnetic separation mechanism (10) comprises a servo motor (105) and a carrier plate (103) located above the conveyor (1), the bottom of the carrier plate (103) is provided with an electromagnetic suction cup (104), the carrier plate (103) is driven to rotate by the servo motor (105), and the conveyor (1) is provided with a material receiving box (11) on both sides.

2. A screening device for scrap recovery according to claim 1, characterized in that, The head of the conveyor (1) is provided with a feeding groove (2), one end of the feeding groove (2) is fixedly provided with a support frame (3), and the conveyor (1) is fixedly provided with a bearing frame (4) located below the feeding groove (2) near one end of the feeding groove (2).

3. A screening device for scrap recovery according to claim 1, characterized in that, The end of the conveyor (1) is provided with a box body (5), the box body (5) is provided with a material receiving box (6) inside, and the upper end of the box body (5) is provided with a feeding port (8).

4. The screening device for scrap recovery according to claim 1, characterized in that, The magnetic separation mechanism (10) is provided with at least one pair, and the magnetic separation mechanism (10) is uniformly arranged along the conveyor (1).

5. The screening device for scrap recovery according to claim 1, characterized in that, The magnetic separation mechanism (10) further comprises a mounting frame (101), a driving shaft (102) is rotatably installed in the mounting frame (101), the top end of the driving shaft (102) is fixedly connected with the carrier plate (103), a belt pulley (106) is installed on the output shaft of the servo motor (105) and the driving shaft (102), and a belt is connected between the belt pulleys (106).

6. A screening device for scrap recovery according to claim 5, characterized in that, The top end of the mounting frame (101) is provided with a trigger switch (108), and the driving shaft (102) is provided with a cam (107) which can contact the trigger switch (108).

7. The screening device for scrap recycling according to claim 3, characterized in that, The box body (5) is provided with a fan (7), and the head of the conveyor (1) is provided with a dust collecting box (9), and the dust collecting box (9) is provided with a collecting port (12).

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