Screening device for scrap recovery

Abstract

The utility model relates to the field of scrap steel recovery, concretely relates to a screening device for scrap steel recovery, including box and be located in its inside rubbing roller, the box top is fixed with feed hopper, still include: the first baffle of fixed in the box inside one side and located rubbing roller below. Through the integration of multiple functional units such as crushing, magnetic separation, scraping and vibrating screening in a box, a continuous automatic processing assembly line is constructed, especially the cooperation of the rotating magnet sleeve and the fixed scraper in the magnetic material in the magnetic separation realizes automatic and continuous scraping and collection, effectively solves the problem that the traditional magnetic separator needs to stop cleaning or uses independent complex scraping mechanism, greatly improves the overall operation efficiency of scrap steel recovery processing.

Description

Technical Field

[0001] This utility model relates to the field of scrap steel recycling, and in particular to a screening device for scrap steel recycling. Background Technology

[0002] As a valuable recyclable resource, scrap steel is of great significance for resource conservation and environmental protection. During the scrap steel recycling process, non-ferrous metals, dust, and other non-magnetic impurities are often mixed in. To improve the purity and value of the recycled scrap steel, these impurities need to be effectively separated and screened.

[0003] In existing technologies, the pretreatment of scrap steel typically includes two main stages: crushing and sorting. First, a crusher is used to crush the larger scrap steel. Then, a magnetic separator is commonly used to separate ferromagnetic materials from non-magnetic substances using the principle of magnetic adsorption. However, the scrap steel adsorbed on the magnetic separator usually requires the machine to be stopped or a separate scraping mechanism to clean it, which affects the efficiency of continuous operation. Furthermore, it cannot screen out the dust that may still be mixed in with the separated non-magnetic materials. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a screening device for scrap steel recycling to solve the technical problems in the prior art.

[0005] To achieve the above objectives, this utility model provides a screening device for scrap steel recycling, including a housing and a crushing roller disposed therein, wherein a feed hopper is fixedly provided on the top of the housing, and further comprising: A first guide plate fixed inside one side of the housing and located below the crushing roller; A second guide plate is fixed inside the box on the other side and located below the first guide plate; A motor fixed to the outer wall of the housing; A rotating shaft is horizontally mounted inside the lower end of the housing, with one end fixedly connected to the output end of the motor; A magnet sleeve fixed to the surface of the rotating shaft is located below the material discharge end of the second guide plate; A scraper fixed to the bottom of the second guide plate has its bottom overlapping one side surface of the magnet sleeve; A flow guide plate is fixed to one side of the bottom of the box body, which is located below the scraper, and a discharge trough is provided at the lower end of the box body corresponding to its discharge end; A screening box is located on the other side of the bottom of the box body, with a gap between one side of the screening box and the flow guide plate, and a box door is provided on the side of the box body near the screening box.

[0006] Preferably, the first guide plate extends toward the second guide plate, and the upper surface of the first guide plate is inclined, wherein the inclined direction gradually approaches the second guide plate from top to bottom.

[0007] Preferably, the second guide plate extends toward the first guide plate, and the upper surface of the second guide plate is inclined, wherein the inclined direction gradually moves away from the first guide plate from top to bottom.

[0008] Preferably, both ends of the first guide plate and the second guide plate are integrally formed with inclined upward extensions, and each extension is fixedly connected to the inner wall of the box.

[0009] Preferably, the scraper has an arc-shaped contact surface on the side facing the magnet sleeve that is adapted to its outer peripheral surface, and the arc-shaped contact surface overlaps the surface of one side of the magnet sleeve.

[0010] Preferably, the screening device further includes at least one vibration component, which is disposed on the side of the screening box and is used to drive the screening box to vibrate and screen the material inside. The vibration component includes: Rotate the cam mounted on one end of the rotating shaft; A mounting plate is fixed to one side wall of the screening box, the mounting plate is located directly below the adjacent cam, and a through groove is provided on the mounting plate; A movable rod extends through the slot, and a positioning block is fixedly installed at the bottom of the movable rod. One side of the positioning block is fixedly connected to the inner wall of the box. A spring is fitted onto the outer circumference of the movable rod, with one end of the spring abutting against the bottom surface of the mounting plate and the other end of the spring abutting against the top surface of the positioning block; The rotating pins are symmetrically fixed at both ends of the other side of the screening box, and the end of each rotating pin away from the screening box is rotatably connected to the inner wall of the box.

[0011] Preferably, the through groove is a waist-shaped groove, and a limiting ring is fixedly connected to the top of the movable rod. The outer diameter of the limiting ring is larger than the width of the waist-shaped groove, and the limiting ring abuts against the top surface of the mounting plate.

[0012] Preferably, there are two vibration components, which are symmetrically arranged at both ends of the other side of the screening box.

[0013] The beneficial effects of this utility model are as follows: The screening device for scrap steel recycling of this utility model integrates multiple functional units such as crushing, magnetic separation, scraping and vibrating screening into one box, and builds a continuous automated processing line. In particular, the magnetic material in the magnetic separation is automatically and continuously scraped and collected through the cooperation of the rotating magnet sleeve and the fixed scraper, which effectively solves the problem that traditional magnetic separators need to be stopped for cleaning or use independent and complicated scraping mechanisms, and greatly improves the overall operation efficiency of scrap steel recycling. An independent vibrating screening station is set up to perform secondary processing on the sorted non-magnetic materials. The cam-spring vibration assembly driven by the same motor generates high-frequency micro-vibration in the screening box, which can effectively separate fine impurities such as dust mixed in the non-magnetic materials. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the main cross-section of the present invention; Figure 3 This is a schematic front sectional view of the partial structure of the first guide plate, rotating shaft, and cam of this utility model; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 This is the right view of the present invention.

[0016] The diagram is marked as follows: 1. Box body; 101. Feed hopper; 102. Box door; 103. Feed chute; 2. Crushing roller; 3. First guide plate; 4. Second guide plate; 5. Rotating shaft; 6. Motor; 7. Magnet sleeve; 8. Scraper; 9. Diverting plate; 10. Screening box; 11. Cam; 12. Mounting plate; 13. Through slot; 14. Movable rod; 15. Positioning block; 16. Spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] The first aspect of this utility model proposes a screening device for scrap steel recycling, such as... Figure 1-5 As shown, the device includes a housing 1 and a crushing roller 2 disposed therein for crushing scrap steel. A feed hopper 101 is fixed to the top of the housing 1, and a discharge port is located at the bottom of the housing 1 for discharging screened dust. It also includes: A first guide plate 3 is fixed inside the box 1 and located below the crushing roller 2; there are two crushing rollers 2, which are symmetrically rotated and installed inside the box 1. Gears are fixed at the ends of the two crushing rollers 2 and the two gears mesh. A drive motor is fixedly installed at the end of one of the crushing rollers 2 to drive the two crushing rollers 2 to rotate relative to each other and crush the scrap steel. A second guide plate 4 is fixed inside the box 1 on the other side and located below the first guide plate 3; Motor 6 is fixed to the outer wall of housing 1; A rotating shaft 5 is horizontally mounted inside the lower end of the housing 1, with one end of it fixedly connected to the output end of the motor 6; A magnet sleeve 7 is fixed to the surface of the rotating shaft 5 and is located below the material discharge end of the second guide plate 4. Its rotation path corresponds to the material drop trajectory of the material discharge end, so that the scrap steel falling from the second guide plate 4 can be attracted by the magnet sleeve 7 and rotate with it, thereby realizing the separation of magnetic materials and non-magnetic materials. The scraper 8, which is fixed to the bottom of the second guide plate 4, overlaps the surface of one side of the magnet sleeve 7. A flow guide plate 9 is fixed to one side of the bottom of the box 1, which is located below the scraper 8. A discharge trough 103 is provided at the lower end of the box 1 corresponding to its discharge end. A screening box 10 is located on the other side of the bottom of the box 1, with a gap between one side of it and the guide plate 9. A door 102 is provided on the side of the box 1 near the screening box 10. Due to the gap between the screening box 10 and the guide plate 9, the screening box 10 is not interfered with during slight up-and-down vibrations. After the scrap steel is crushed by the crushing roller 2, it falls onto the first guide plate 3 and is guided to the second guide plate 4. The second guide plate 4 then guides the steel to the upper surface of the magnet sleeve 7 at the end. The output end of the motor 6 drives the magnet sleeve 7, which is fixedly installed on the surface of the rotating shaft 5, to rotate slowly, thereby separating the magnetic material from the non-magnetic material. The magnetic material is adsorbed onto the surface of the magnet sleeve 7, while the non-magnetic material falls into the screening box 10 for further screening as the magnet sleeve 7 rotates. The magnetic material adsorbed by the magnet sleeve 7 rotates towards the scraper 8. When it comes into contact with the scraper 8, the scraper 8 removes the magnetic material from the surface of the magnet sleeve 7 and guides it out of the box 1 from the discharge trough 103 through the guide plate 9. The screening box 10 also screens the metal and dust in the non-magnetic material for subsequent processing, which greatly improves the overall efficiency of scrap steel recycling.

[0020] In this embodiment: the first guide plate 3 extends toward the second guide plate 4, and the upper surface of the first guide plate 3 is inclined, with the inclined direction gradually approaching the second guide plate 4 from top to bottom. This facilitates the pulverized scrap steel falling onto the surface of the second guide plate 4 through the inclined surface of the first guide plate 3.

[0021] In this embodiment: the second guide plate 4 extends towards the first guide plate 3, and the upper surface of the second guide plate 4 is inclined, with the inclined direction gradually moving away from the first guide plate 3 from top to bottom. This facilitates the scrap steel falling onto the surface of the second guide plate 4 and onto the surface of the magnet sleeve 7, so that the material is evenly dispersed when falling from the second guide plate 4, thereby improving the magnetic separation efficiency.

[0022] In this embodiment, both ends of the first guide plate 3 and the second guide plate 4 are integrally formed with inclined upward extensions, and each extension is fixedly connected to the inner wall of the housing 1. The extensions can gather the material in the middle of the guide plate, preventing the material from scattering from the edge and causing it to fall into the magnetic separation area.

[0023] In this embodiment, the scraper 8 has an arc-shaped contact surface on the side facing the magnet sleeve 7 that matches the outer peripheral surface of the magnet sleeve 7. The arc-shaped contact surface overlaps with one side surface of the magnet sleeve 7. This design allows the scraper 8 to fit tightly against the surface of the magnet sleeve 7, effectively scraping away the adsorbed magnetic material.

[0024] In this embodiment: the screening device further includes at least one vibration component, which is disposed on the side of the screening box 10 and is used to drive the screening box 10 to vibrate and screen the material inside. The vibration component includes: Rotate the cam 11 mounted on one end of the rotating shaft 5; A mounting plate 12 is fixed to one side wall of the screening box 10. The mounting plate 12 is located directly below the adjacent cam 11. A through groove 13 is provided on the mounting plate 12. The movable rod 14 extends through the slot 13, and a positioning block 15 is fixedly installed at the bottom of the movable rod 14. One side of the positioning block 15 is fixedly connected to the inner wall of the box 1. A spring 16 is sleeved on the outer periphery of the movable rod 14. One end of the spring 16 abuts against the bottom surface of the mounting plate 12, and the other end of the spring 16 abuts against the top surface of the positioning block 15. Rotary pins are symmetrically fixed at both ends of the other side of the screening box 10, and the end of each rotating pin away from the screening box 10 is rotatably connected to the inner wall of the box body 1.

[0025] As the rotating shaft 5 rotates, it drives the cam 11 at its end to rotate, causing the protrusion of the cam 11 to press and push the mounting plate 12 downward. At the same time, the spring 16 is compressed and contracted. At this time, the mounting plate 12 drives the screening box 10 to deflect around the rotating pin. When the protrusion of the cam 11 is released from compression, the spring 16 elastically returns to its original position, causing the mounting plate 12 to rise. The intermittent compression of the mounting plate 12 by the protrusion of the cam 11 achieves the up-and-down vibration of the screening box 10. The non-magnetic material in the screening box 10 is screened, and fine particles such as dust fall through the screen into the discharge port at the bottom of the box 1 and are discharged. The non-magnetic material is retained in the screening box 10. Users can periodically open the box door 102 to clean or replace the screening box 10.

[0026] In this embodiment, the through groove 13 is designed as an oblong groove, and a limiting ring is fixedly connected to the top of the movable rod 14. The outer diameter of the limiting ring is larger than the width of the oblong groove, and the limiting ring abuts against the top surface of the mounting plate 12. This design restricts the movable rod 14 from disengaging from the through groove 13, while allowing the mounting plate 12 to swing within a certain range in the vertical direction, ensuring stable vibration.

[0027] In this embodiment, two vibration components are provided, symmetrically arranged at both ends of the other side of the screening box 10. The dual vibration components provide a balanced vibration force, preventing the screening box 10 from tilting and improving screening uniformity.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0029] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A screening device for scrap steel recycling, comprising a housing (1) and a crushing roller (2) disposed therein, wherein a feed hopper (101) is fixedly provided on the top of the housing (1), characterized in that, Also includes: A first guide plate (3) is fixed inside one side of the box (1) and located below the crushing roller (2); A second guide plate (4) is fixed inside the box (1) on the other side and located below the first guide plate (3); The motor (6) is fixed to the outer wall of the housing (1); A rotating shaft (5) is horizontally rotatably installed inside the lower end of the housing (1), one end of which is fixedly connected to the output end of the motor (6); A magnet sleeve (7) is fixed to the surface of the rotating shaft (5) and is located below the material discharge end of the second guide plate (4); The scraper (8) fixed to the bottom of the second guide plate (4) overlaps the surface of one side of the magnet sleeve (7); A flow guide plate (9) is fixed to one side of the bottom of the box (1), which is located below the scraper (8). A discharge trough (103) is provided at the lower end of the box (1) corresponding to its discharge end. A screening box (10) is located on the other side of the bottom of the box body (1), with a gap between one side of the screening box (9) and the flow guide plate (9). A box door (102) is provided on the side of the box body (1) near the screening box (10).

2. The screening device for scrap steel recycling according to claim 1, characterized in that, The first guide plate (3) extends toward the second guide plate (4), and the upper surface of the first guide plate (3) is inclined, and the inclined direction is gradually approaching the second guide plate (4) from top to bottom.

3. The screening device for scrap steel recycling according to claim 2, characterized in that, The second guide plate (4) extends in the direction toward the first guide plate (3), and the upper surface of the second guide plate (4) is inclined, and the inclined direction is gradually away from the first guide plate (3) from top to bottom.

4. The screening device for scrap steel recycling according to claim 3, characterized in that, Both ends of the first guide plate (3) and the second guide plate (4) are integrally formed with inclined upward extensions, and each extension is fixedly connected to the inner wall of the box (1).

5. A screening device for scrap steel recycling according to claim 3, characterized in that, The scraper (8) has an arc-shaped contact surface on one side facing the magnet sleeve (7) that is adapted to its outer peripheral surface. The arc-shaped contact surface overlaps one side surface of the magnet sleeve (7).

6. The screening device for scrap steel recycling according to claim 1, characterized in that, The screening device further includes at least one vibration component, which is disposed on the side of the screening box (10) and is used to drive the screening box (10) to vibrate and screen the material inside it. The vibration component includes: Rotate the cam (11) mounted on one end of the shaft (5); A mounting plate (12) is fixed to one side wall of the screening box (10). The mounting plate (12) is located directly below the adjacent cam (11). A through groove (13) is provided on the mounting plate (12). An active rod (14) is inserted through the slot (13), and a positioning block (15) is fixedly installed at the bottom of the active rod (14). One side of the positioning block (15) is fixedly connected to the inner wall of the box (1). A spring (16) is sleeved on the outer periphery of the movable rod (14). One end of the spring (16) abuts against the bottom surface of the mounting plate (12), and the other end of the spring (16) abuts against the top surface of the positioning block (15). Rotating pins are symmetrically fixed at both ends of the other side of the sieve box (10), and the end of each rotating pin away from the sieve box (10) is rotatably connected to the inner wall of the box body (1).

7. A screening device for scrap steel recycling according to claim 6, characterized in that, The through groove (13) is a waist-shaped groove, and a limiting ring is fixedly connected to the top of the movable rod (14). The outer diameter of the limiting ring is larger than the width of the waist-shaped groove, and the limiting ring abuts against the top surface of the mounting plate (12).

8. A screening device for scrap steel recycling according to claim 6, characterized in that, Two vibration components are provided, and the two vibration components are symmetrically arranged at both ends on the other side of the screening box (10).

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