Automatic demagnetizing device for construction waste sorting
By setting pushers and demagnetizing components on the conveyor belt, the metal waste is automatically pushed away from the magnetic field, which solves the problem of low demagnetization efficiency of existing construction waste demagnetization devices and realizes an uninterrupted demagnetization process.
Patent Information
- Application Number
- CN202422409892.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Existing demagnetization devices for construction waste have low demagnetization efficiency and require shutdown for cleaning of the magnetic devices.
A pusher plate and a demagnetizing component are installed on the conveyor belt. The pusher plate pushes the metal waste adsorbed on the conveyor belt, causing it to automatically leave the magnetic field, thus achieving uninterrupted operation.
This improves demagnetization efficiency, avoids downtime for cleaning, and ensures continuous operation of the conveyor belt.
Smart Images

Figure CN223543164U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of waste sorting technology, and in particular to an automatic demagnetizing device for sorting construction waste. Background Technology
[0002] The production activities of the construction industry, such as demolition, construction, decoration, and repair, generate a large amount of construction waste. The accumulation and treatment of this waste has become a problem in urban waste management, and it is urgent to improve the recycling rate of construction waste.
[0003] Construction waste contains a wide variety of materials, with metal waste often mixed in. Metal waste has a high recycling value and includes items such as iron nails, iron wire, and copper wire. Existing metal waste sorting methods typically use magnetic devices to attract and remove metal waste, thus demagnetizing it. However, existing demagnetizing devices require shutdown and cleaning once they are full of metal waste, resulting in low demagnetization efficiency. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing demagnetization devices for construction waste have low demagnetization efficiency.
[0005] Therefore, this utility model provides an automatic demagnetizing device for sorting and selecting construction waste.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] An automatic demagnetizing device for construction waste sorting is installed above the waste conveyor line. The device includes two parallel rotating drive rollers, and...
[0008] A conveyor belt, which is fitted onto two drive rollers, with an installation space formed between the conveyor belt and the two drive rollers;
[0009] A demagnetizing assembly, which is installed within the installation space;
[0010] A pusher plate is mounted on the conveyor belt.
[0011] Furthermore, the pusher plates are spaced apart on the conveyor belt along the conveying direction of the conveyor belt.
[0012] Furthermore, the plane on which the pusher plate is located is perpendicular to the transmission direction of the conveyor belt, and the end of the pusher plate is flush with the edge of the conveyor belt.
[0013] Furthermore, the demagnetizing assembly has isolation plates at both ends, which are used to block the magnetic field.
[0014] Furthermore, when the conveying direction of the conveyor belt is perpendicular to the conveying direction of the waste in the waste conveying line, the width between the two isolation plates is larger than the width of the waste conveyor belt.
[0015] Furthermore, the width between the two isolation plates is 5 to 15 cm larger than the width of the waste conveyor belt.
[0016] Furthermore, when the moving direction of the conveyor belt is parallel to the waste conveying direction, the rotation direction of the conveyor belt is opposite to the rotation direction of the waste conveying line.
[0017] Furthermore, one end of the conveyor belt extends beyond the discharge end of the waste conveying line.
[0018] Furthermore, the isolation plate located on the discharge end of the waste conveyor line is located on the side of the discharge end of the waste conveyor line away from its loading end.
[0019] The beneficial effects of this utility model are that, by setting a pusher plate on the conveyor belt, when the metal waste on the waste conveyor line is attracted to the conveyor belt under the action of the demagnetizing component, as the conveyor belt moves, the pusher plate pushes the metal waste on the conveyor belt, causing it to move with the conveyor belt in the direction of material feeding, until it moves to the side of the isolation plate away from the demagnetizing component, and the metal waste automatically leaves the conveyor belt, thereby realizing the sorting and demagnetization of metal waste in the waste conveyor line. During the demagnetization process, the pusher plate can realize automatic material retraction, so that the conveyor belt can keep running continuously and improve the demagnetization efficiency. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Figure 1 This is a schematic diagram of the automatic demagnetizing device for construction waste sorting in Embodiment 1 of this utility model.
[0022] Figure 2 This is a schematic diagram showing the positional relationship between the automatic demagnetizing device for construction waste sorting and the waste conveying line in Embodiment 2 of this utility model.
[0023] In the diagram: 1. Drive roller; 2. Conveyor belt; 3. Push plate; 4. Demagnetizing assembly; 5. Isolation plate; 6. Waste conveying line. Detailed Implementation
[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Example 1
[0028] An automatic demagnetizing device for construction waste sorting is installed above the waste conveying line 6, and specifically includes a mounting frame, a demagnetizing component 4, and a conveying component.
[0029] The transmission assembly includes drive rollers 1 and a transmission belt 2. The two drive rollers 1 are parallel to each other and rotatably connected to the mounting frame. The transmission belt 2 is sleeved on the two drive rollers 1, forming an installation space for the demagnetizing assembly 4 between the transmission belt 2 and the two drive rollers 1. The mounting frame is equipped with a drive source for driving the drive rollers 1 to rotate. The movement direction of the transmission belt 2 is perpendicular to or parallel to the waste transmission direction. The distance between the lower surface of the transmission belt 2 and the upper surface of the conveyor belt in the waste transmission line 6 is 15-25 cm, preferably 20 cm. In this embodiment, the movement direction of the transmission belt 2 is parallel to the waste transmission direction. The transmission belt 2 is located near the discharge end of the waste transmission line 6, and the rotation direction of the transmission belt 2 is opposite to the rotation direction of the waste transmission line 6. Thus, the lower surface of the transmission belt 2 and the upper surface of the conveyor belt in the waste transmission line 6 move in the same direction, and one end of the transmission belt 2 extends beyond the discharge end of the conveyor belt in the waste transmission line 6.
[0030] It should be noted that multiple push plates 3 are evenly spaced along the transmission direction of the conveyor belt 2. The plane of the push plate 3 is perpendicular to the transmission direction of the conveyor belt 2, and the end of the push plate 3 is flush with the edge of the conveyor belt 2.
[0031] The demagnetizing component 4 is a strong magnet or electromagnet, and is disposed between the conveyor belt 2 and the drive roller 1. Isolation plates 5 are provided at both ends of the demagnetizing component 4 to block the magnetic field. The isolation plates 5 can be made of aluminum plates or magnetic shielding plates in the rotor. In this embodiment, the isolation plate 5 located on the side of the unloading end of the conveyor belt in the waste conveying line 6 is located on the side of the unloading end of the conveyor belt away from its loading end.
[0032] Example 2
[0033] In this embodiment, the moving direction of the conveyor belt 2 is perpendicular to the waste conveying direction, and the two isolation plates 5 are set perpendicular to the waste conveying direction. The width between the two isolation plates 5 is 5 to 15 cm larger than the width of the waste conveyor belt.
[0034] In summary, by setting a pusher plate 3 on the conveyor belt 2, when the metal waste on the waste conveyor line 6 is attracted onto the conveyor belt 2 under the action of the demagnetizing component 4, as the conveyor belt 2 moves, the pusher plate 3 pushes the metal waste on the conveyor belt 2, causing it to move along the conveyor belt 2 in the feeding direction of the conveyor belt 2 until it moves to the side of the isolation plate 5 away from the demagnetizing component 4, and the metal waste automatically leaves the conveyor belt 2, thereby realizing the sorting and demagnetization of metal waste in the waste conveyor line 6. During the demagnetization process, the pusher plate 3 can realize automatic material retraction, so that the conveyor belt 2 can keep running continuously and improve the demagnetization efficiency.
[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.
Claims
1. An automatic demagnetizing device for construction waste sorting, the device being installed above the waste conveyor line (6), characterized in that, include, Two drive rollers (1) that rotate in parallel to each other, and A conveyor belt (2) is fitted onto two drive rollers (1), and an installation space is formed between the conveyor belt (2) and the two drive rollers (1); Demagnetizing assembly (4), which is installed in the installation space; Push plate (3), said push plate (3) is disposed on conveyor belt (2); The demagnetizing component (4) is provided with isolation plates (5) at both ends. The isolation plates (5) are used to block the magnetic field. When the transmission direction of the conveyor belt (2) is perpendicular to the transmission direction of the garbage in the garbage conveyor line (6), the width between the two isolation plates (5) is larger than the width of the garbage conveyor belt. When the moving direction of the conveyor belt (2) is parallel to the garbage conveying direction, the isolation plate (5) located on the side of the garbage conveying line discharge end is located on the side of the garbage conveying line discharge end away from its loading end.
2. The automatic demagnetizing device for construction waste sorting according to claim 1, characterized in that, The pusher plate (3) is spaced along the transmission direction of the conveyor belt (2) on the conveyor belt (2).
3. The automatic demagnetizing device for construction waste sorting according to claim 1, characterized in that, The plane of the push plate (3) is perpendicular to the transmission direction of the conveyor belt (2), and the end of the push plate (3) is flush with the edge of the conveyor belt (2).
4. The automatic demagnetizing device for construction waste sorting according to claim 1, characterized in that, The width between the two isolation plates (5) is 5 to 15 cm larger than the width of the garbage conveyor belt.
5. The automatic demagnetizing device for construction waste sorting according to claim 1, characterized in that, When the moving direction of the conveyor belt (2) is parallel to the garbage conveying direction, the rotation direction of the conveyor belt (2) is opposite to the rotation direction of the garbage conveying line.
6. The automatic demagnetizing device for construction waste sorting according to claim 5, characterized in that, One end of the conveyor belt (2) extends beyond the end of the waste conveyor line's discharge end.
7. The automatic demagnetizing device for construction waste sorting according to claim 6, characterized in that, The isolation plate (5) located on the side of the discharge end of the waste conveyor line is located on the side of the discharge end of the waste conveyor line away from its loading end.