Metal separation device for building waste

By using a magnetic component that moves along a closed trajectory and detaches from the metal at a preset position, combined with an electromagnet or permanent magnet and a guide surface design, the problem of separating small metal particles from concrete particles in construction waste is solved, achieving a highly efficient metal removal effect.

CN224025260UActive Publication Date: 2026-03-24杭州林栋能源设备有限责任公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively separate small metal particles from concrete particles in construction waste, resulting in the presence of metal particles adhering to concrete particles.

Method used

The method involves using a magnetic component that moves along a closed trajectory and detaches from the metal at a preset position. This is achieved by combining an electromagnet or permanent magnet with a guide surface design. The metal is separated from the concrete by switching the magnetism of the magnetic component at different positions or by the guide surface attracting the metal, which finally falls into the storage box.

Benefits of technology

It achieves efficient removal of metal from concrete particles, ensuring that the concrete does not contain metal particles, thus improving separation efficiency and purity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224025260U_ABST
    Figure CN224025260U_ABST
Patent Text Reader

Abstract

The utility model discloses a metal separation device for building waste, and belongs to the field of metal removal. Comprising a plurality of magnetic parts which are all used for adsorbing metal in a waste conveying hopper; the shifting part is used for driving the plurality of magnetic parts to move along a closed track; the control piece is used for directly or indirectly separating the metal adsorbed on the magnetic piece from the magnetic piece when the magnetic piece moves to a preset position along the closed track; and the storage box is arranged below the preset position. The metal removing device has the beneficial effects that metal can be attracted away in a magnetic attraction mode, and metal removing is achieved. Even if the concrete particles contain metal, the concrete particles can be adsorbed and removed together, so that the concrete without metal can be better obtained.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of metal removal, and more specifically, to a metal separation device for construction waste. Background Technology

[0002] Construction waste mainly consists of concrete and metal. Concrete can be recycled and reused, but the metal in the concrete needs to be removed.

[0003] Common removal methods primarily involve crushing construction waste into small particles, then using the density difference between concrete and metal, and combining this with a throwing motion to separate the metal from the concrete. However, this method only removes metal particles outwards; it struggles to accurately remove metal particles embedded within the concrete particles. For example, if the metal particles are small and the concrete particles are large, their density will be close to that of the concrete particles. This can lead to smaller metal particles adhering to the concrete particles after the metal particles have been removed, making it difficult to completely remove the metal. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section above, some embodiments of this application provide a metal separation device for construction waste, comprising: multiple magnetic components, each used to adsorb metal from a waste conveying hopper; a displacement component for moving the multiple magnetic components along a closed track; a control component for directly or indirectly detaching the metal adsorbed on the magnetic components from the magnetic components when the magnetic components move along the closed track to a preset position; and a storage tank disposed below the preset position.

[0006] Furthermore, the magnetic component includes an electromagnet; the control component is used to control the electromagnet to switch between having magnetic and non-magnetic states.

[0007] Furthermore, the magnetic component includes a permanent magnet; the control component includes a guide plate forming a guide surface; the guide surface is connected to the closed trajectory; the guide surface gradually moves away from the magnetic component along the direction of movement of the magnetic component; when the magnetic component moves to the preset position, metal adheres to the guide surface, so that the metal separates from the magnetic component and falls into the storage box.

[0008] Furthermore, a limiting surface is formed on the guide plate, one end of which is connected to the guide surface and the other end is connected to the storage box.

[0009] Furthermore, the displacement member includes: a driving component and a transmission belt; a slot for inserting the magnetic component is formed in the transmission belt; and the guide surface abuts against the transmission belt.

[0010] Furthermore, a conveyor belt is provided in the waste conveying hopper, and the conveyor belt is used to transport construction waste.

[0011] Furthermore, the magnetic component moves in a direction parallel to the conveyor belt above it.

[0012] Furthermore, a crusher is installed at the end of the conveyor belt away from the storage box, and the construction waste is crushed by the crusher and then enters the conveyor belt.

[0013] The beneficial effects of this application are as follows:

[0014] By using magnetic attraction, metal can be adsorbed and removed. Even if concrete particles contain metal, they can be adsorbed and removed together, resulting in concrete that is free of metal. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram:

[0018] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0019] Figure 2 This is a structural schematic diagram of a part of the embodiment, mainly showing... Figure 1 The cross-sectional structure.

[0020] Figure label:

[0021] 1. Magnetic component; 2. Displacement component; 21. Drive component; 22. Transmission belt; 3. Storage box; 4. Guide plate; 41. Guide surface; 42. Limiting surface. Detailed Implementation

[0022] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0023] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0024] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0025] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Reference Figure 1-2 ,

[0028] A metal separation device for construction waste includes: a magnetic component 1, a displacement component 2, a control component, and a storage tank 3.

[0029] Multiple magnetic components 1 are provided, each used to adsorb metal from a waste conveying hopper. The metal is mainly iron, cobalt, and nickel. The magnetic components 1 use magnetic force to attract metal scraps onto themselves. A shifting component 2 is used to move the multiple magnetic components 1 along a closed track, which is a track where the ends are connected. The shifting component 2 includes a driving component 21 and a transmission belt 22. The magnetic components 1 are evenly spaced on the transmission belt 22. The driving component 21 consists of a pulley and a motor, which drives the transmission belt 22 to move along the closed track. A control component is used to directly or indirectly detach the metal adsorbed on the magnetic component 1 from the magnetic component 1 when the magnetic component 1 moves along the closed track to a preset position. A storage box 3 is located below the preset position. After the metal is detached from the magnetic component 1, it falls directly downwards into the storage box 3, thus achieving the separation of metal from construction waste. The storage box 3 is located at the end of the conveyor bucket, and the drive belt 22 spans the storage box 3 and the conveyor bucket.

[0030] The first embodiment regarding the control element and magnetic element 1 is as follows: the magnetic element 1 includes an electromagnet; the control element is used to control the electromagnet to switch between a magnetic state and a non-magnetic state, wherein the control element is a wire supplying power to the electromagnet and a switch controlling the opening and closing state of the wire. Therefore, when the magnetic element 1 is located above the conveying hopper, the magnetic element 1 is magnetic. When the magnetic element 1 is located in a preset position above the storage tank 3, the magnetic element 1 is non-magnetic.

[0031] The second embodiment regarding the control component and magnetic component 1 is as follows: The magnetic component 1 comprises a permanent magnet. The control component includes a guide plate 4 forming a guide surface 41, which is connected to the closed track. The guide surface 41 gradually moves away from the magnetic component 1 in the vertical direction along the direction in which the magnetic component 1 moves. When the magnetic component 1 moves to the preset position, metal adheres to the guide surface 41, causing the metal to separate from the magnetic component 1 and fall into the storage box 3. Since the guide surface 41 is connected to the closed track, after the metal adsorbed on the magnetic component 1 moves to the position of the guide surface 41, the metal will transfer to the guide surface 41. When the guide surface 41 is relatively close to the magnetic component 1 in the vertical direction, the magnetic component 1 has a strong attraction to the metal, and the metal will adhere to the guide surface 41. As the metal moves away from the magnetic component 1 in the vertical direction, the attraction of the magnetic component 1 to the metal gradually decreases until the metal moves to the preset position, at which point the attraction of the magnetic component 1 to the metal is at its minimum, causing the metal to detach from the guide surface 41 and fall into the storage box 3.

[0032] In other embodiments, a limiting surface 42 is also formed on the guide plate 4. One end of the limiting surface 42 is connected to the guide surface 41, and the other end is connected to the storage box 3. In some cases, because the metal is relatively light, when the magnetic component 1 moves to the preset position, although the metal is far away from the magnetic component 1, the metal can still be subjected to a small attraction force, causing the metal to be adsorbed on the guide surface 41 and move together with the magnetic component 1. Therefore, by using the setting of the limiting surface 42, when the magnetic component 1 moves and detaches from the limiting surface 42, the lighter metal on the guide surface 41 can fall into the storage box 3, thereby improving the degree of metal collection and processing.

[0033] Specifically, a slot for inserting the magnetic component 1 is formed in the transmission belt 22; the guide surface 41 abuts against the transmission belt 22. This facilitates the adhesion and adsorption of the metal to the guide surface 41.

[0034] Specifically, a conveyor belt is installed in the waste conveying hopper, and the conveyor belt is used to transport construction waste.

[0035] Specifically, the magnetic component 1 moves in a direction parallel to the conveyor belt above it.

[0036] Specifically, a crusher is installed at the end of the conveyor belt away from the storage tank 3. Construction waste is crushed by the crusher and then enters the conveyor belt. This process breaks metal into small particles, facilitating the adsorption and removal of metal.

[0037] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A metal separation device for construction waste, characterized by, The application relates to a metal separating device for construction waste, comprising: a plurality of magnetic pieces, each of which is arranged to attract metal in a waste conveying hopper; a displacement piece arranged to move the plurality of magnetic pieces along a closed track; a control piece arranged to cause the metal attracted by the magnetic pieces to be separated from the magnetic pieces directly or indirectly when the magnetic pieces move to a preset position along the closed track; and a storage box arranged below the preset position.

2. The metal separating device for construction waste according to claim 1, wherein: the magnetic pieces comprise electromagnets, and the control piece is arranged to control the electromagnets to switch between a magnetic state and a non-magnetic state.

3. The metal separating device for construction waste according to claim 2, wherein: the magnetic pieces comprise permanent magnets, and the control piece comprises a guide plate body forming a guide surface; the guide surface is connected with the closed track, and the guide surface gradually moves away from the magnetic pieces along the direction in which the magnetic pieces move; when the magnetic pieces move to the preset position, the metal adheres to the guide surface, so that the metal is separated from the magnetic pieces and falls into the storage box.

4. The metal separating device for construction waste according to claim 3, wherein: a limiting surface is further formed on the guide plate body, one end of the limiting surface is connected with the guide surface, and the other end of the limiting surface is connected with the storage box.

5. The metal separating device for construction waste according to claim 4, wherein: the displacement piece comprises a driving part and a transmission belt, and the transmission belt is provided with a slot for inserting the magnetic pieces; the guide surface is in abutment with the transmission belt.

6. The metal separating device for construction waste according to claim 5, wherein: a conveying belt is arranged in the waste conveying hopper, and the conveying belt is arranged to convey construction waste.

7. The metal separating device for construction waste according to claim 6, wherein: the magnetic pieces move in a direction parallel to the conveying belt.

8. The metal separating device for construction waste according to claim 7, wherein: a crusher is arranged at one end of the conveying belt away from the storage box, and construction waste is crushed by the crusher and then enters the conveying belt.