Scrap steel electromagnetic sorting device

Abstract

The utility model discloses a scrap steel electromagnetic sorting device which comprises a frame, the inner wall of the frame is rotatably connected with two groups of transmission rollers, the two groups of transmission rollers are connected with each other through a transmission belt, the side wall of the frame is fixedly connected with a side plate, the inner wall of the side plate is rotatably connected with a threaded rod, and the threaded section of the threaded rod is in threaded connection with a moving block. The moving block is connected with an electromagnet through a telescopic mechanism, the side wall of the frame is fixedly connected with an outer frame, the outer wall of the outer frame is slidably connected with a guide plate, the guide plate is obliquely arranged, the end of the guide plate is fixedly connected with a scraping plate, and the scraping plate makes contact with the lower end face of the electromagnet. The scraper plate is matched with the guide plate, so that impurities such as dust, greasy dirt and oxide attached to the lower end face of the electromagnet are automatically cleaned after the electromagnet unloads each time, the problem that the electromagnetic field intensity is reduced due to impurity accumulation is effectively solved, and the electromagnet is always in an optimal adsorption state; and the separation efficiency and the recovery rate of magnetic materials are improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic sorting technology, and in particular to an electromagnetic sorting device for scrap steel. Background Technology

[0002] Electromagnetic sorting devices for scrap steel are equipment used to recycle and separate ferromagnetic materials from scrap steel. They utilize the magnetic force generated by electromagnetism or permanent magnets to automatically separate ferromagnetic substances (such as iron and steel) from non-magnetic materials (such as aluminum, plastic, and copper) in scrap steel.

[0003] Currently, some electromagnetic sorting devices use electromagnets suspended above conveyor belts to sort scrap steel. The magnets attract magnetic materials, while non-magnetic materials continue to leave the sorting area via the conveyor belt. After each attraction, the outer wall of the electromagnet accumulates dust, oil, oxides, rust, and other impurities, forming a layer of a certain thickness that blocks or weakens the effective propagation of the electromagnetic field. This reduces the electromagnet's magnetic force, decreasing its ability to attract ferromagnetic materials, resulting in poor sorting performance and reduced recovery efficiency of magnetic materials. Therefore, it is necessary to redesign the scrap steel electromagnetic sorting device to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electromagnetic sorting device for scrap steel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electromagnetic sorting device for scrap steel includes a frame. Two sets of transmission rollers are rotatably connected to the inner wall of the frame and are interconnected by a transmission belt. A side plate is fixedly connected to the side wall of the frame, and a threaded rod is rotatably connected to the inner wall of the side plate. A movable block is threadedly connected to the threaded section of the threaded rod, and an electromagnet is connected to the movable block through a telescopic mechanism. An outer frame is fixedly connected to the side wall of the frame, and a guide plate is slidably connected to the outer wall of the outer frame. The guide plate is inclined, and a scraper is fixedly connected to the end of the guide plate, with the scraper contacting the lower end face of the electromagnet.

[0007] Preferably, the telescopic mechanism includes a hydraulic cylinder fixedly connected to the lower end face of the movable block, and the telescopic end of the hydraulic cylinder is fixedly connected to an electromagnet.

[0008] Preferably, a limiting rod is fixedly connected to the inner wall of the side plate, and the moving block is slidably connected to the outer wall of the limiting rod.

[0009] Preferably, the outer wall of the outer frame is provided with two sets of sliding grooves, and a sliding rod is fixedly connected to the bottom of the two sets of sliding grooves.

[0010] Preferably, a slider is slidably connected to the outer wall of the slide rod, and the slider is fixedly connected to the guide plate.

[0011] Preferably, a spring is sleeved on the outer wall of the slide rod, one end of the spring is fixedly connected to the bottom of the slide groove, and the other end of the spring is fixedly connected to the lower end face of the slider.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model uses a scraper and a guide plate to ensure that the electromagnet automatically cleans the impurities such as dust, oil, oxides, etc. attached to its lower end face after each unloading, effectively solving the problem of the decrease in electromagnetic field strength caused by the accumulation of impurities, ensuring that the electromagnet is always in the best adsorption state, and improving the sorting efficiency and the recovery rate of magnetic materials.

[0014] 2. This utility model uses the reaction force of the spring to make the scraper fit tightly against the lower end face of the electromagnet when the electromagnet passes the guide plate. The spring design ensures that the scraper can maintain stable pressure under different conditions, so that impurities (such as dust, oil, oxides, etc.) on the surface of the electromagnet are thoroughly cleaned, further improving the working efficiency and sorting effect of the electromagnet. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the electromagnetic sorting device for scrap steel proposed in this utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure at the outer frame.

[0017] Figure 3 for Figure 2 Structural diagram.

[0018] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Frame; 2. Transmission belt; 3. Side plate; 4. Threaded rod; 5. Limiting rod; 6. Moving block; 7. Hydraulic cylinder; 8. Electromagnet; 9. Outer frame; 10. Guide plate; 11. Scraper; 12. Slide groove; 13. Slide rod; 14. Spring; 15. Slider. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4The scrap steel electromagnetic sorting device includes a frame 1. Two sets of transmission rollers are rotatably connected to the inner wall of the frame 1 and are interconnected by a transmission belt 2. A side plate 3 is fixedly connected to the side wall of the frame 1. A threaded rod 4 is rotatably connected to the inner wall of the side plate 3. A movable block 6 is threadedly connected to the threaded section of the threaded rod 4. An electromagnet 8 is connected to the movable block 6 through a telescopic mechanism. An outer frame 9 is fixedly connected to the side wall of the frame 1. A guide plate 10 is slidably connected to the outer wall of the outer frame 9. The guide plate 10 is inclined and a scraper 11 is fixedly connected to the end of the guide plate 10. The scraper 11 contacts the lower end face of the electromagnet 8. After unloading, the electromagnet 8 passes over the outer frame 9, and the scraper 11 can clean the impurities attached to its lower end face.

[0022] The telescopic mechanism includes a hydraulic cylinder 7 fixedly connected to the lower end face of the movable block 6. The telescopic end of the hydraulic cylinder 7 is fixedly connected to an electromagnet 8. A limit rod 5 is fixedly connected to the inner wall of the side plate 3, and the movable block 6 is slidably connected to the outer wall of the limit rod 5.

[0023] Two sets of sliding grooves 12 are provided on the outer wall of the outer frame 9. A sliding rod 13 is fixedly connected to the bottom of the two sets of sliding grooves 12. A slider 15 is slidably connected to the outer wall of the sliding rod 13. The slider 15 is fixedly connected to the guide plate 10. A spring 14 is sleeved on the outer wall of the sliding rod 13. One end of the spring 14 is fixedly connected to the bottom of the sliding groove 12, and the other end of the spring 14 is fixedly connected to the lower end face of the slider 15. When the electromagnet 8 passes the upper end face of the guide plate 10, it will press the guide plate 10 downward. At this time, the reaction force generated by the spring 14 can make the scraper 11 fit tightly against the lower end face of the electromagnet 8, thereby ensuring the cleaning effect.

[0024] In this invention, when the device is used, scrap steel is transported to the sorting area via the conveyor belt 2. The electromagnet 8 is driven to slide downward by the hydraulic cylinder 7. When the scrap steel passes under the electromagnet 8 via the conveyor belt, the electromagnet 8 generates a strong magnetic field, which attracts magnetic materials such as iron and steel on the conveyor belt 2. At this time, the non-magnetic materials will continue to leave the sorting area via the conveyor belt and enter the next processing step.

[0025] The magnetic material adsorbed onto the electromagnet 8 can be transferred to a designated position, namely one side of the frame 1, by means of the rotation of the threaded rod 4. The electromagnet 8 is lowered by the hydraulic cylinder 7, and the magnetic material is unloaded into the recycling area. After unloading, the electromagnet 8 moves above the outer frame 9 of the frame 1. During this process, the electromagnet 8 passes over the outer frame 9. When the electromagnet 8 passes above the outer frame 9, the lower end face of the electromagnet 8 will contact the scraper 11 set at the end of the guide plate 10. Since the guide plate 10 is inclined, when the electromagnet 8 presses down on the guide plate 10, the reaction force generated by the spring 14 makes the scraper 11 stick tightly to the lower end face of the electromagnet 8, cleaning the impurities such as dust, oil, oxides, etc. attached to its surface.

[0026] After the cleaning process is completed, the electromagnet 8 returns to its initial position under the control of the hydraulic cylinder 7, ready to attract the next batch of magnetic materials.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A scrap steel electromagnetic sorting device, comprising a frame (1), characterized in that, Two sets of transmission rollers are rotatably connected to the inner wall of the frame (1), and the two sets of transmission rollers are connected to each other through a transmission belt (2). A side plate (3) is fixedly connected to the side wall of the frame (1), and a threaded rod (4) is rotatably connected to the inner wall of the side plate (3). A moving block (6) is threadedly connected to the threaded section of the threaded rod (4), and the moving block (6) is connected to an electromagnet (8) through a telescopic mechanism. An outer frame (9) is fixedly connected to the side wall of the frame (1), and a guide plate (10) is slidably connected to the outer wall of the outer frame (9). The guide plate (10) is inclined, and a scraper (11) is fixedly connected to the end of the guide plate (10). The scraper (11) is in contact with the lower end face of the electromagnet (8).

2. The scrap steel electromagnetic sorting device according to claim 1, characterized in that, The telescopic mechanism includes a hydraulic cylinder (7) fixedly connected to the lower end face of the movable block (6), and the telescopic end of the hydraulic cylinder (7) is fixedly connected to an electromagnet (8).

3. The scrap steel electromagnetic sorting device according to claim 2, characterized in that, The inner wall of the side plate (3) is fixedly connected to a limiting rod (5), and the moving block (6) is slidably connected to the outer wall of the limiting rod (5).

4. The scrap steel electromagnetic sorting device according to claim 3, characterized in that, The outer frame (9) has two sets of sliding grooves (12) on its outer wall, and a sliding rod (13) is fixedly connected to the bottom of the two sets of sliding grooves (12).

5. The scrap steel electromagnetic sorting device according to claim 4, characterized in that, The outer wall of the slide rod (13) is slidably connected to a slider (15), and the slider (15) is fixedly connected to the guide plate (10).

6. The scrap steel electromagnetic sorting device according to claim 5, characterized in that, A spring (14) is fitted on the outer wall of the slide rod (13). One end of the spring (14) is fixedly connected to the bottom of the slide groove (12), and the other end of the spring (14) is fixedly connected to the lower end face of the slider (15).

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