Impurity removal device for recycled aggregate for high-strength concrete
By designing a reciprocating motion mechanism and a blower to work together to create a cleaning device, the problem of insufficient electromagnetic adsorption in existing devices has been solved. This has enabled efficient adsorption of magnetic materials in recycled aggregates and convenient cleaning of lightweight impurities, thus improving the cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI XINYIDA HENGZHONG CONCRETE CO LTD
- Filing Date
- 2025-02-18
- Publication Date
- 2026-04-14
AI Technical Summary
Existing impurity removal devices have a single feeding position, which makes it difficult to fully utilize the electromagnetic adsorption plate. In addition, the large gap between the electromagnetic adsorption rollers makes it difficult to effectively adsorb the magnetic materials in the recycled aggregate.
A device for removing impurities from recycled aggregates used in high-strength concrete was designed. The device uses a reciprocating motion mechanism to move the electromagnetic adsorption frame and the screening plate, so that the aggregates are evenly distributed and fully contact the adsorption rollers. Combined with a fan, lightweight impurities are removed, achieving efficient impurity removal.
It achieves efficient adsorption of magnetic materials in recycled aggregates and convenient cleaning of lightweight impurities, thus improving the efficiency and effectiveness of impurity removal.
Smart Images

Figure CN224114203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of recycled concrete aggregate production technology, specifically a device for removing impurities from recycled aggregates used in high-strength concrete. Background Technology
[0002] Recycled aggregate is aggregate with a nominal particle size of less than 40mm obtained from waste concrete blocks generated during building demolition, road resurfacing, concrete production, engineering construction, and other situations, after crushing and processing. Recycled aggregate needs to be added when producing high-strength concrete. During the production of recycled aggregate, impurities in the aggregate need to be removed through a purification device.
[0003] In concrete production, recycled aggregates need to be added, and these aggregates need to be processed by a purification device. Existing purification devices feed the aggregates into the device through the inlet. However, because the feeding position is singular, the aggregates will only fall into one position of the electromagnetic adsorption plate, making it difficult to make full use of the electromagnetic adsorption plate. Furthermore, because there are gaps between the multiple sets of adsorption rollers inside the electromagnetic adsorption plate, it is difficult to adsorb the magnetic materials in the aggregates. Utility Model Content
[0004] The purpose of this invention is to provide a device for removing impurities from recycled aggregates used in high-strength concrete, in order to solve the problem that existing impurity removal devices mentioned in the background art are not convenient for adsorbing magnetic materials in recycled aggregates.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for removing impurities from recycled aggregates used in high-strength concrete, comprising: a machine body and a reciprocating motion mechanism, wherein a feed inlet is connected to the top of the machine body, and a discharge outlet is provided at the bottom of the machine body.
[0006] An electromagnetic adsorption frame is slidably connected to the inside of the machine body via a limiting plate. A connecting frame is fixedly connected to the bottom of the electromagnetic adsorption frame, and a screening plate is fixedly connected to the bottom of the connecting frame. A reciprocating motion mechanism that drives the electromagnetic adsorption frame to move is provided on one side of the machine body. The reciprocating motion mechanism includes a rack and pinion that is slidably connected to the machine body. A gear is meshed with one side of the rack and pinion. A connecting rod is movably connected to the bottom of the rack and pinion via a rotating shaft. A guide plate is movably connected to the inside of the machine body via a rotating shaft.
[0007] Preferably, two diverter plates are fixedly connected to both sides of the guide plate, and the two diverter plates are in a figure-eight shape. A motor is installed on the top of the machine body.
[0008] Preferably, the output end of the motor is fixedly connected to a connecting plate, and a protrusion is fixedly connected to one side of the connecting plate.
[0009] Preferably, a connecting frame is slidably connected to the outer side of the protrusion, and the bottom of the connecting frame is fixed to the rack rod.
[0010] Preferably, one side of the gear is fixedly connected to the guide plate via a connecting shaft, and one end of the connecting rod is movably connected to the electromagnetic adsorption frame via a rotating shaft.
[0011] Preferably, a collection box is fixedly connected to one side of the machine body, and a door panel is movably connected to one side of the collection box via a pivot.
[0012] Preferably, a slider is slidably connected to one side of the door panel, a handle is fixedly connected to one side of the slider, a locking block is fixedly connected to the bottom of the handle, and a fixing block is engaged with the outside of the locking block.
[0013] Preferably, one side of the fixing block is fixed to the collection box, and a fan is installed on the side of the machine body away from the collection box.
[0014] Compared with existing technologies, the beneficial effects of this impurity removal device for recycled aggregates in high-strength concrete are:
[0015] 1. This high-strength concrete recycled aggregate impurity removal device, when adsorbing the magnetic material in the recycled aggregate, activates the motor in the reciprocating motion mechanism, causing the rack and pinion to mesh with the gear, thereby driving the gear to rotate reciprocally. When the gear rotates, it can drive the guide plate to swing reciprocally, thereby guiding the aggregate falling from the feed inlet and ensuring that the aggregate falls evenly onto the electromagnetic adsorption frame. At the same time, when the rack moves up and down, it also drives the electromagnetic adsorption frame to move reciprocally within the machine body through the connecting rod, thereby ensuring that the internal adsorption rollers fully contact the aggregate and efficiently adsorb the magnetic material in the aggregate. The screening plate at the bottom of the electromagnetic adsorption frame also moves along with it through the connecting frame, thereby screening the aggregate. Through the above operation, it is possible to efficiently remove impurities from the recycled aggregate.
[0016] 2. This high-strength concrete recycled aggregate impurity removal device removes lightweight impurities from the aggregate by starting a blower, which blows the lightweight impurities from the falling aggregate into a collection box. When the collection box needs to be cleaned, the handle is pulled upwards, and the slider on one side of the handle slides on one side of the door panel. When the handle moves, it causes the bottom locking block to disengage from the fixing block. Then, the handle can be pulled to rotate and open the door panel to clean the impurities collected in the collection box. After cleaning, the door panel can be rotated back to its original position, and the locking block at the bottom of the handle can be engaged with the fixing block. This operation facilitates the processing of lightweight impurities collected in the impurity removal device. Attached Figure Description
[0017] Figure 1 This is a three-dimensional cross-sectional view of the present invention;
[0018] Figure 2 This is a three-dimensional schematic diagram of the present invention;
[0019] Figure 3 This is a three-dimensional schematic diagram of the guide plate of this utility model;
[0020] Figure 4 This is a three-dimensional cross-sectional view of the fixing block of this utility model.
[0021] In the diagram: 1. Machine body; 2. Feed inlet; 3. Discharge outlet; 4. Electromagnetic adsorption frame; 5. Connecting frame; 6. Screening plate; 7. Reciprocating motion mechanism; 701. Motor; 702. Connecting plate; 703. Protrusion; 704. Connecting frame; 705. Rack and pinion; 706. Gear; 707. Connecting rod; 8. Diverter plate; 9. Guide plate; 10. Collection box; 11. Door panel; 12. Handle; 13. Slider; 14. Locking block; 15. Fixing block; 16. Fan. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-3 This utility model provides a technical solution: a device for removing impurities from recycled aggregates used in high-strength concrete, comprising: a body 1 and a reciprocating motion mechanism 7, wherein the top of the body 1 is connected to a feed inlet 2 and the bottom of the body 1 is provided with a discharge outlet 3.
[0024] An electromagnetic adsorption frame 4 is slidably connected to the inside of the machine body 1 via a limiting plate. A connecting frame 5 is fixedly connected to the bottom of the electromagnetic adsorption frame 4. A screening plate 6 is fixedly connected to the bottom of the connecting frame 5. A reciprocating motion mechanism 7 is provided on one side of the machine body 1 to drive the electromagnetic adsorption frame 4 to move. The reciprocating motion mechanism 7 includes a rack rod 705 slidably connected to the machine body 1. A gear 706 is meshed on one side of the rack rod 705. A connecting rod 707 is movably connected to the bottom of the rack rod 705 via a rotating shaft. A guide plate 9 is movably connected to the inside of the machine body 1 via a rotating shaft.
[0025] Two flow plates 8 are fixedly connected to both sides of the guide plate 9. The two flow plates 8 are in the shape of an "eight". A motor 701 is installed on the top of the body 1. A connecting plate 702 is fixedly connected to the output end of the motor 701. A protrusion 703 is fixedly connected to one side of the connecting plate 702. A connecting frame 704 is slidably connected to the outside of the protrusion 703. The bottom of the connecting frame 704 is fixed to the rack rod 705. One side of the gear 706 is fixedly connected to the guide plate 9 through a connecting shaft. One end of the connecting rod 707 is movably connected to the electromagnetic adsorption frame 4 through a rotating shaft. The rack rod 705 and the gear 706 form a meshing transmission structure. The rack rod 705 and the connecting rod 707 form a rotating structure through the rotating shaft. A strip groove matching the protrusion 703 is opened inside the connecting frame 704. The protrusion 703 and the connecting frame 704 form a sliding structure.
[0026] In practical implementation, the impurity removal device for recycled aggregates used in high-strength concrete, when adsorbing the magnetic material in the recycled aggregates, activates the motor 701 in the reciprocating motion mechanism 7. The motor 701 drives the connecting plate 702 to rotate, causing the protrusion 703 on one side of the connecting plate 702 to slide in the strip groove of the connecting frame 704, thereby moving the connecting frame 704 up and down. When the connecting frame 704 moves, it drives the rack 705 at the bottom to mesh with the gear 706, thereby driving the gear 706 to reciprocate. When the gear 706 rotates, it drives the guide plate 9 to reciprocate, thereby controlling the feeding. The aggregate falling from the inlet 2 is guided to fall evenly onto the electromagnetic adsorption frame 4. The diversion plate 8 on the guide plate 9 will further divert the aggregate, distributing it evenly on both sides of the electromagnetic adsorption frame 4. At the same time, when the rack rod 705 moves up and down, it will also drive the electromagnetic adsorption frame 4 to move back and forth in the machine body 1 through the connecting rod 707, so that the internal adsorption rollers can fully contact the aggregate and efficiently adsorb the magnetic material in the aggregate. The screening plate 6 at the bottom of the electromagnetic adsorption frame 4 will also move along with it through the connecting frame 5, thereby screening the aggregate. Through the above operations, it is easy to efficiently remove impurities from recycled aggregate.
[0027] Please see Figure 1 , Figure 2 and Figure 4 A collection box 10 is fixedly connected to one side of the body 1, and a door panel 11 is movably connected to one side of the collection box 10 via a pivot. A slider 13 is slidably connected to one side of the door panel 11, and a handle 12 is fixedly connected to one side of the slider 13. A locking block 14 is fixedly connected to the bottom of the handle 12, and a fixing block 15 is engaged with the outside of the locking block 14. One side of the fixing block 15 is fixed to the collection box 10. A fan 16 is installed on the side of the body 1 away from the collection box 10. The slider 13 and the door panel 11 form a sliding structure, and the locking block 14 and the fixing block 15 form an engaging structure.
[0028] In practical implementation, the impurity removal device for recycled aggregates used in high-strength concrete removes lightweight impurities from the aggregates by activating the blower 16. The blower 16 blows the lightweight impurities from the falling aggregates into the collection box 10. When the collection box 10 needs to be cleaned, the handle 12 is pulled upwards, and the slider 13 on one side of the handle 12 slides on one side of the door panel 11. When the handle 12 moves, it causes the bottom locking block 14 to disengage from the fixing block 15. Then, the handle 12 can be pulled to rotate and open the door panel 11 to clean the impurities collected in the collection box 10. After cleaning, the door panel 11 can be rotated to reset, and the locking block 14 at the bottom of the handle 12 can be engaged with the fixing block 15. In this way, the lightweight impurities collected in the impurity removal device can be easily processed.
[0029] In summary: When using the impurity removal device for recycled aggregates in high-strength concrete, the recycled aggregates are first fed into the machine body 1 through the feed inlet 2, and impurities are removed by the electromagnetic adsorption frame 4 and the blower 16. After the impurities are removed, the aggregates can be discharged through the discharge outlet 3. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A device for removing impurities from recycled aggregate for high-strength concrete, comprising: The machine body (1) and the reciprocating motion mechanism (7) are characterized in that the top of the machine body (1) is connected to a feed inlet (2), and the bottom of the machine body (1) is provided with a discharge outlet (3). An electromagnetic adsorption frame (4) is slidably connected to the inside of the machine body (1) via a limiting plate. A connecting frame (5) is fixedly connected to the bottom of the electromagnetic adsorption frame (4). A screening plate (6) is fixedly connected to the bottom of the connecting frame (5). A reciprocating motion mechanism (7) for moving the electromagnetic adsorption frame (4) is provided on one side of the machine body (1). The reciprocating motion mechanism (7) includes a rack rod (705) slidably connected to the machine body (1). A gear (706) is meshed on one side of the rack rod (705). A connecting rod (707) is movably connected to the bottom of the rack rod (705) via a rotating shaft. A guide plate (9) is movably connected to the inside of the machine body (1) via a rotating shaft.
2. The impurity removal device for recycled aggregate in high-strength concrete according to claim 1, characterized in that: Two diversion plates (8) are fixedly connected to both sides of the guide plate (9). The two diversion plates (8) are in the shape of an "eight". A motor (701) is installed on the top of the body (1).
3. The impurity removal device for recycled aggregate in high-strength concrete according to claim 2, characterized in that: The output end of the motor (701) is fixedly connected to a connecting plate (702), and a protrusion (703) is fixedly connected to one side of the connecting plate (702).
4. The impurity removal device for recycled aggregate in high-strength concrete according to claim 3, characterized in that: A connecting frame (704) is slidably connected to the outer side of the protrusion (703), and the bottom of the connecting frame (704) is fixed to the rack rod (705).
5. The impurity removal device for recycled aggregate in high-strength concrete according to claim 1, characterized in that: One side of the gear (706) is fixedly connected to the guide plate (9) via a connecting shaft, and one end of the connecting rod (707) is movably connected to the electromagnetic adsorption frame (4) via a rotating shaft.
6. The impurity removal device for recycled aggregate in high-strength concrete according to claim 1, characterized in that: A collection box (10) is fixedly connected to one side of the body (1), and a door panel (11) is movably connected to one side of the collection box (10) via a pivot.
7. The impurity removal device for recycled aggregate in high-strength concrete according to claim 6, characterized in that: A slider (13) is slidably connected to one side of the door panel (11), a handle (12) is fixedly connected to one side of the slider (13), a locking block (14) is fixedly connected to the bottom of the handle (12), and a fixing block (15) is engaged with the outside of the locking block (14).
8. The impurity removal device for recycled aggregate in high-strength concrete according to claim 7, characterized in that: One side of the fixing block (15) is fixed to the collection box (10), and a fan (16) is installed on the side of the body (1) away from the collection box (10).