Metal separation device for waste incineration slag treatment

Abstract

This utility model relates to the field of resource recycling technology, specifically to a metal separation device for treating waste incineration slag. It includes a conveyor belt, a magnetic metal sorting component, a non-magnetic metal sorting component, a magnetic metal collection bin, a non-magnetic metal collection bin, and a non-metal collection bin. The magnetic metal sorting component is arranged between the loading and unloading ends of the conveyor belt, separating magnetic metals and conveying them to the magnetic metal collection bin. The non-magnetic metal sorting component includes a metal detection element, an intermediate conveying plate, and a drive mechanism. The metal detection element detects the presence of metal in the material to be processed within a preset area on the conveyor belt. The intermediate conveying plate is correspondingly arranged below the unloading end, and the drive mechanism acts on the intermediate conveying plate to adjust its discharge direction, allowing the material on the intermediate conveying plate to be conveyed to the non-magnetic metal collection bin or the non-metal collection bin. It can efficiently achieve coarse separation of magnetic metals, non-magnetic metals, and non-metallic materials.

Description

Technical Field

[0001] This utility model relates to the field of resource recycling technology, specifically to a metal separation device for treating waste incineration slag. Background Technology

[0002] With the deepening of urbanization, the amount of urban household waste is increasing rapidly. Currently, the main methods of household waste disposal in my country include sanitary landfill, incineration, and stockpiling. Among these, incineration, which involves burning household waste at high temperatures, has significant advantages such as the complete removal of hazardous substances, a substantial reduction in the mass and volume of ash after incineration (approximately 80% reduction), and the ability to generate electricity from the heat produced. Therefore, incineration has become the primary choice for the harmless treatment of household waste.

[0003] Valuable metals are found in the copper sand after incineration slag processing, giving it high economic value. However, the amount of these precious metals in the slag copper sand is small and their distribution is highly uncertain. Previously, manual identification and sorting were used, followed by some simple mechanical sorting methods, but these methods have limited speed. Therefore, it is necessary to adopt some efficient coarse separation methods to quickly separate the waste from the valuable metals. Utility Model Content

[0004] The purpose of this invention is to provide a metal separation device for waste incineration slag treatment, which can efficiently achieve coarse separation of magnetic metals, non-magnetic metals and non-metallic materials.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A metal separation device for treating waste incineration slag includes a conveyor belt, a magnetic metal sorting component, a non-magnetic metal sorting component, a magnetic metal collection bin, a non-magnetic metal collection bin, and a non-metal collection bin. The conveyor belt includes a loading end and a unloading end. The magnetic metal sorting component is arranged between the loading end and the unloading end, and it screens and collects magnetic metals from the material to be processed on the conveyor belt, transferring the magnetic metals to the magnetic metal collection bin. The non-magnetic metal sorting component includes a metal detection element, an intermediate conveying plate, and a driving mechanism. The metal detection element is arranged between the unloading end and the magnetic metal sorting component, and it is used to detect whether there is metal in the material to be processed within a preset area on the conveyor belt. The intermediate conveying plate is correspondingly arranged below the unloading end, and the driving mechanism acts on the intermediate conveying plate to adjust the discharge direction of the intermediate conveying plate, so that the material on the intermediate conveying plate is transferred to the non-magnetic metal collection bin or the non-metal collection bin.

[0007] Furthermore, it also includes a frame, with the conveyor belt horizontally arranged in the middle layer of the frame, the magnetic metal collection bin, the non-magnetic metal collection bin and the non-metal collection bin arranged in the lower layer of the frame, and a material distributor fixed in the upper layer of the frame, with the discharge port of the material distributor corresponding to the feeding end of the conveyor belt.

[0008] Furthermore, the lower layer of the frame is rotatably connected to a rotating shaft, and the intermediate conveying plate is fixed on the rotating shaft; the driving mechanism is a drive motor, and the power output end of the drive motor is connected to the rotating shaft for transmission. By rotating the power output end of the drive motor in the forward or reverse direction, the intermediate conveying plate is driven to rotate around the rotating shaft, so that the discharge direction of the intermediate conveying plate corresponds to the position of the non-magnetic metal collection bin or the non-metal collection bin.

[0009] Furthermore, the bottom of the frame is fixed with multiple casters to facilitate frame movement.

[0010] Furthermore, it also includes a control element. The metal detection element and the drive mechanism are connected to the control element. The control element receives the judgment signal from the metal detection element and outputs an action response signal to the drive mechanism according to the judgment signal. The drive mechanism receives the action response signal and acts on the intermediate conveyor plate to adjust the discharge direction of the intermediate conveyor plate, so that the material on the intermediate conveyor plate is transferred to the non-magnetic metal collection bin or the non-metal collection bin.

[0011] Furthermore, the metal detection element is an inductive proximity sensor or a capacitive proximity sensor.

[0012] Furthermore, the magnetic metal sorting component is a belt magnetic separator, which is arranged above the conveyor belt, and the material conveying direction of the belt magnetic separator is perpendicular to the material conveying direction of the conveyor belt. A discharge chute is fixed on the side of the conveyor belt at a position corresponding to the material conveying end of the belt magnetic separator. The lower end of the discharge chute extends to the magnetic metal collection bin. The magnetic metal on the conveyor belt of the belt magnetic separator is separated through the discharge chute, and the magnetic metal is discharged into the magnetic metal collection bin along the discharge chute.

[0013] This invention offers the following unexpected and beneficial effects: By utilizing a conveyor belt, a magnetic metal sorting component, and a non-magnetic metal sorting component in combination, it efficiently achieves the coarse selection of magnetic metals, non-magnetic metals, and non-metallic materials. Specifically, the material to be processed enters the conveyor belt from the loading end and moves with the conveyor belt to the effective range of the magnetic metal sorting component. The magnetic metal sorting component separates and collects the magnetic metals, such as iron or nickel, from the material and transfers the collected magnetic metals to the magnetic metal collection bin for storage. The material separated by magnetic separation continues to move with the conveyor belt to the effective range of the metal detection element of the non-magnetic metal sorting component. The metal detection element detects the presence of non-magnetic metals in the material. If present, the drive mechanism controls the discharge direction of the intermediate conveyor plate towards the non-magnetic metal collection bin; otherwise, the drive mechanism controls the discharge direction of the intermediate conveyor plate towards the non-magnetic metal collection bin, thus achieving the coarse selection of magnetic and non-magnetic metals in the material to be processed. Furthermore, compared to manual identification and sorting methods, the metal separation device for waste incineration slag treatment described in this utility model has higher sorting efficiency and can separate non-magnetic and magnetic metals, which is beneficial for subsequent targeted resource recycling. Attached Figure Description

[0014] Figure 1 A schematic diagram of the metal separation device for waste incineration slag treatment according to the present invention is shown.

[0015] Figure 2 A schematic diagram of the structure of the non-magnetic metal sorting component of this utility model is shown.

[0016] Figure 3 A schematic diagram of the mating structure between the plate and the frame of this utility model is shown.

[0017] In the diagram, 1—conveyor belt, 2—magnetic metal sorting component, 21—belt magnetic separator, 22—belt magnetic separator motor, 23—discharge chute, 3—non-magnetic metal sorting component, 31—metal detection element, 32—intermediate conveyor plate, 33—drive mechanism, 34—rotating shaft, 35—first mounting base, 36—second mounting base, 37—drive wheel, 38—driven wheel, 4—magnetic metal collection bin, 5—non-magnetic metal collection bin, 6—non-metal collection bin, 7—frame, 8—universal wheel, 9—material distributor, 10—plate body. Detailed Implementation

[0018] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] In one embodiment, see Figure 1 As shown, this utility model provides a metal separation device for treating waste incineration slag, including a conveyor belt 1, a magnetic metal sorting component 2, a non-magnetic metal sorting component 3, a magnetic metal collection bin 4, a non-magnetic metal collection bin 5, and a non-metal collection bin 6. The conveyor belt 1 includes a loading end and a unloading end; the magnetic metal sorting component 2 is arranged between the loading end and the unloading end, and it screens and collects magnetic metals from the material to be processed on the conveyor belt 1, transferring the magnetic metals to the magnetic metal collection bin 4. The non-magnetic metal sorting component 3 includes a metal detection element 31, an intermediate conveying plate 32, and a driving mechanism 33. The metal detection element 31 is arranged between the unloading end and the magnetic metal sorting component 2, and is used to detect whether metal is present in the material to be processed within a preset area on the conveyor belt 1. The intermediate conveyor plate 32 is arranged below the discharge end. The driving mechanism 33 acts on the intermediate conveyor plate 32 to adjust the discharge direction of the intermediate conveyor plate 32, so that the material on the intermediate conveyor plate 32 is transferred to the non-magnetic metal collection bin 5 or the non-metal collection bin 6.

[0021] Specifically, the magnetic metal sorting component 2 can use a powerful electromagnet as its core component. The magnetic field strength of this electromagnet can be adjusted as needed to adapt to the separation of magnetic metals from different types and particle sizes of waste incineration slag. When the material to be processed passes through its effective range, the magnetic field generated by the powerful electromagnet attracts the magnetic metal, causing it to detach from the surface of the conveyor belt 1. Subsequently, the magnetic metal is guided to the magnetic metal collection bin 4 through a pre-set magnetic channel.

[0022] To improve the separation efficiency of magnetic metals, multiple sets of magnetic field adjustment devices can be installed around the magnetic metal sorting assembly 2 to dynamically adjust the magnetic field distribution according to the material conveying speed and the thickness of the material layer. For example, in areas with thicker material layers, the local magnetic field can be appropriately enhanced to ensure that deeper magnetic metals can also be effectively attracted.

[0023] Preferably, a vibration device is added to the magnetic metal sorting component 2 so that the material on the conveyor belt 1 vibrates when passing through the magnetic area, thereby preventing the magnetic metal particles from agglomerating with each other and with other materials, thus improving the separation effect of magnetic metal with other materials.

[0024] As a preferred embodiment of this utility model, see [link to relevant documentation]. Figure 1 As shown, the metal separation device for waste incineration slag treatment also includes a frame 7, the conveyor belt 1 is horizontally arranged in the middle layer of the frame 7, the magnetic metal collection bin 4, the non-magnetic metal collection bin 5 and the non-metal collection bin 6 are arranged in the lower layer of the frame 7, and a feeder 9 is fixed in the upper layer of the frame 7, the discharge port of the feeder 9 corresponds to the feeding end of the conveyor belt 1.

[0025] In this embodiment, see Figure 1 As shown, the conveyor belt 1 is horizontally arranged in the middle layer of the frame 7, facilitating maintenance and repair by operators. Simultaneously, the middle layer position is conducive to material transport, allowing materials to fall smoothly from the feed inlet of the distributor 9 onto the conveyor belt 1 under gravity, and then steadily undergo subsequent metal separation processing along the conveyor belt. The magnetic metal collection bin 4, non-magnetic metal collection bin 5, and non-metal collection bin 6 are arranged in the lower layer of the frame 7. This layout facilitates material collection and subsequent processing. Firstly, the lower position makes it easier to transport the collected materials using forklifts or other transport equipment. Secondly, placing the collection bins in the lower layer lowers the center of gravity of the entire device, improving its stability. Furthermore, concentrating the collection bins in the lower layer allows for better pipe connections and material transport operations. For example, when setting up material transfer pipes between collection bins or connecting subsequent processing equipment, the length and complexity of the pipework can be reduced.

[0026] As a preferred embodiment of this utility model, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, a rotating shaft 34 is rotatably connected to the lower layer of the frame 7, and the intermediate conveyor plate 32 is fixed on the rotating shaft 34. The driving mechanism 33 is a drive motor, and the power output end of the drive motor is connected to the rotating shaft 34. By rotating the power output end of the drive motor in the forward or reverse direction, the intermediate conveyor plate 32 is driven to rotate around the rotating shaft 34, so that the discharge direction of the intermediate conveyor plate 34 corresponds to the position of the non-magnetic metal collection bin 5 or the non-metallic collection bin 6.

[0027] Specifically, a first mounting base 35 for fixing the drive mechanism 33 and a second mounting base 36 for fixing the rotating shaft 34 are provided on the frame. The power output end of the drive mechanism 33 is connected to a drive wheel 37. A driven wheel 38 corresponding to the position of the drive wheel 37 is fixed on the rotating shaft 34. The drive wheel 37 and the driven wheel 38 are connected by a transmission belt.

[0028] Furthermore, the surface of the intermediate conveyor plate 32 is designed as a smooth plane, allowing materials to slide quickly and smoothly into the corresponding collection bin under the influence of gravity. At the same time, baffles are installed at the front and rear edges of the intermediate conveyor plate 32 to prevent materials from overflowing from the sides during the conveying process, ensuring that the materials accurately enter the target collection bin.

[0029] The rotation angle range of the intermediate conveyor plate 32 is optimized based on the location and size of different collection bins. Through precise calculation and simulation, the optimal rotation angle of the intermediate conveyor plate 32 is determined, enabling materials to fall into the collection bins with the shortest path and fastest speed, thereby improving the overall efficiency of the metal separation device.

[0030] As a preferred embodiment of this utility model, see [link to relevant documentation]. Figures 1 to 3 As shown, the bottom of the frame 7 is fixed with multiple casters 8 to facilitate frame movement.

[0031] Because the metal separation device includes conveyor belt 1, various collection bins 4, 5, 6, and other components, its overall weight is considerable. Therefore, casters 8 with suitable load-bearing capacity must be selected. Furthermore, considering the complex environment of a waste incineration plant, the material of the casters 8 must possess excellent wear resistance, corrosion resistance, and impact resistance. The wheel body can be made of polyurethane, which not only has strong wear resistance, reducing wear during movement and extending service life, but also provides good friction and stability under various ground conditions. Meanwhile, the support structure of the casters 8 is made of stainless steel, effectively resisting corrosion from environmental factors such as moisture and corrosive gases, preventing rust from affecting the normal rotation of the casters.

[0032] To enable the metal separation device to move flexibly in confined spaces or complex workshop layouts, the casters 8 need to possess excellent steering flexibility. Casters with high-precision ball bearings can be selected; this design effectively reduces rotational resistance, making steering easier and smoother. Furthermore, casters with 360-degree free rotation capabilities can be used, allowing the equipment to turn omnidirectionally on the spot, further enhancing its mobility.

[0033] The distribution of multiple casters 8 at the bottom of the frame 7 should be even and reasonable to ensure balanced force distribution during equipment movement. For example, the casters 8 can be symmetrically installed at the four corners and the middle of the frame 7, so that the overall center of gravity of the device is evenly distributed across all the casters 8. This not only prevents the equipment from tilting or swaying during movement but also ensures that each caster 8 can fully perform its load-bearing and movement functions.

[0034] To ensure the equipment remains level and stable when stationary and to prevent unevenness during movement, the installation height of the casters 8 needs to be precisely adjusted. A caster mounting base with an adjusting screw can be used; the height of the casters 8 can be finely adjusted by rotating the screw. After installation, use a level to measure the frame to ensure the equipment is level, avoiding damage or impaired material separation due to inconsistent caster 8 heights.

[0035] When installing the casters 8, ensure a secure and reliable connection to the frame 7. Use high-strength bolts and nuts for tightening, and use anti-loosening washers or thread-locking agents to prevent the bolts from loosening due to vibration during equipment movement. Additionally, to protect the rotating parts of the casters 8, a protective cover can be installed on their exterior to prevent dust, debris, etc., from entering and affecting the normal operation of the casters 8.

[0036] In a preferred embodiment of this utility model, the device further includes a control element. The metal detection element 31 and the drive mechanism 33 are connected to the control element. The control element receives the judgment signal from the metal detection element 31 and outputs an action response signal to the drive mechanism 33 based on the judgment signal. The drive mechanism 33 receives the action response signal and acts on the intermediate conveyor plate 32 to adjust the discharge direction of the intermediate conveyor plate 32, so that the material on the intermediate conveyor plate 32 is transferred to the non-magnetic metal collection bin 5 or the non-metal collection bin 6.

[0037] In the production process of a waste incineration plant, metal separation units typically do not operate independently. Control components can be linked with upstream waste conveying equipment, crushers, and other components. For example, when the metal separation unit detects excessive material flow that may affect the metal separation effect, the control components can send a signal to the upstream waste conveying equipment to reduce the conveying speed, ensuring the stable operation of the metal separation unit.

[0038] The control element can also work in conjunction with downstream material handling equipment (such as metal smelting equipment, non-metallic brick making equipment, etc.). When the material in the non-magnetic metal collection bin 5 or the non-metallic collection bin 6 reaches a certain storage level, the control element automatically sends a signal to the downstream equipment to notify it to prepare to receive the material, thus realizing the automated connection of the entire production process.

[0039] In a preferred embodiment of this utility model, the metal detection element 31 is an inductive proximity sensor or a capacitive proximity sensor.

[0040] Inductive proximity sensors operate on the principle of electromagnetic induction. When a metallic object approaches the sensing surface of the sensor, an induced current is generated in the object. The electromagnetic field generated by this current, in turn, affects the magnetic field of the sensor coil, causing a change in the oscillation frequency of the internal oscillation circuit. By detecting this frequency change, the presence of a metallic object is determined. In non-magnetic metal sorting components of waste incineration slag treatment plants, when non-magnetic metals (such as copper, aluminum, and zinc) in the slag approach the inductive proximity sensor, the aforementioned frequency change is triggered, thereby initiating subsequent control actions.

[0041] Inductive proximity sensors offer high sensitivity, enabling them to detect extremely small metallic objects. This is highly advantageous for separating small amounts of non-magnetic metals from waste incineration slag. They are also highly adaptable to various environments, functioning normally under specific temperature, humidity, and dust conditions. However, the presence of significant ferromagnetic impurities or strong electromagnetic interference in the slag can negatively impact their performance. To overcome these effects, the sensors can be shielded, such as with a metal casing to protect them from external interfering magnetic fields. Regular calibration and cleaning are also essential to ensure their detection accuracy.

[0042] The detection distance of an inductive proximity sensor can vary depending on the model and design, and can be adjusted within the range of a few millimeters to a few centimeters. For the device described in this invention, a suitable detection distance is selected based on factors such as the structure of the conveyor belt 1 and the conveying speed of the slag, to ensure sufficient time for detection and reaction of non-magnetic metals.

[0043] In terms of detection speed, inductive proximity sensors have a fast response time and can quickly detect passing non-magnetic metals, which helps improve the sorting efficiency of the entire device. Moreover, their structure is relatively simple and their cost is moderate, making them suitable for widespread application in industrial production environments.

[0044] A capacitive proximity sensor generates an electrostatic field on its detection surface. When an object approaches, it changes the capacitance of this field. For metallic objects, their conductivity causes a significant change in capacitance. When a non-magnetic metal in slag approaches a capacitive proximity sensor, it causes a change in capacitance, triggering the sensor's signal output. Unlike inductive proximity sensors, capacitive proximity sensors can detect not only metals but also some non-metals with certain conductivity or dielectric constants. However, through proper parameter settings and circuit design, they can be tuned to primarily detect non-magnetic metals.

[0045] Capacitive proximity sensors are more adaptable to different materials and shapes, capable of detecting non-magnetic metal objects of various shapes and sizes, and even performing well in detecting irregularly shaped metal fragments or powders. Their detection range can be adjusted as needed, and in complex environments, such as those containing materials with different dielectric constants, the detection accuracy for non-magnetic metals can be improved by adjusting parameters such as sensitivity and frequency. However, capacitive proximity sensors are relatively weak against environmental interference and are easily affected by humidity, dust, and the dielectric constant of surrounding objects. Therefore, protective measures are necessary during use, such as installing them in a relatively clean location, avoiding direct contact between the sensor and slag, and employing a sealed structure to prevent dust and moisture from entering the sensor.

[0046] When detecting non-magnetic metals in slag, capacitive proximity sensors offer more flexible detection methods, especially for non-magnetic metals with irregular shapes or complex surface conditions, enabling more accurate detection. Furthermore, by adjusting parameters, they can be used in conjunction with inductive proximity sensors to improve the reliability of metal detection.

[0047] In this embodiment, the metal detection element 31 is equipped with a self-cleaning function because the waste incineration slag may contain dust, fine slag, and other substances that can affect its detection accuracy. Regular airflow purging or mechanical brush cleaning can ensure the surface cleanliness of the metal detection element 31 and guarantee detection accuracy.

[0048] As a preferred embodiment of this utility model, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, the magnetic metal sorting component 2 is a belt magnetic separator 21, which is arranged above the conveyor belt. The belt magnetic separator 21 is driven by the belt magnetic separator motor 21, and the material conveying direction of the belt magnetic separator 21 is perpendicular to the material conveying direction of the conveyor belt 1. A discharge chute 23 is fixed on the side of the conveyor belt 1 at a position corresponding to the material conveying end of the belt magnetic separator 21. The lower end of the discharge chute 23 extends to the magnetic metal collection bin 4. The magnetic metal on the conveyor belt of the belt magnetic separator 21 is separated by the discharge chute 23, and the magnetic metal is discharged into the magnetic metal collection bin 4 along the discharge chute 23.

[0049] The speed of conveyor belt 1 and the rotational speed of belt magnetic separator 21 have a significant impact on the separation efficiency and purity of magnetic metals. The optimal matching relationship between the two was determined through experiments and theoretical calculations. Generally, when the speed of conveyor belt 1 is high, the rotational speed of belt magnetic separator 21 should also be increased accordingly to ensure that the magnetic metal has sufficient time to be adsorbed and transported. However, excessively high rotational speed may cause the magnetic metal to bounce on the conveyor belt, affecting the separation effect. Therefore, a variable frequency speed control system can be used to control the speed of the conveyor belt and belt magnetic separator separately, adjusting in real time according to the actual material conditions to achieve the best separation effect.

[0050] During equipment operation, speed sensors installed on conveyor belt 1 and belt magnetic separator 21 monitor their speeds in real time and feed the signals back to the control element. The control element automatically adjusts the motor speed according to the preset speed matching relationship to ensure that conveyor belt 1 and belt magnetic separator 21 always maintain optimal operating conditions.

[0051] The shape of the discharge trough 23 is crucial for the smooth discharge and collection of magnetic metal. The discharge trough 23 is designed as a streamlined structure with a certain inclination angle to reduce resistance during the discharge process. The inclination angle can be adjusted according to the particle size and flowability of the magnetic metal, generally between 30° and 60° is suitable. Simultaneously, the width of the discharge trough 23 should be slightly larger than the width of the magnetic metal accumulation on the belt of the magnetic separator to prevent the magnetic metal from overflowing during the discharge process.

[0052] The length of the discharge trough 23 needs to consider the distance between the belt magnetic separator 21 and the magnetic metal collection bin 4, as well as the trajectory of the falling magnetic metal. It is essential to ensure that the lower end of the discharge trough 23 extends accurately into the magnetic metal collection bin 4 to prevent the magnetic metal from scattering during its descent. A guide plate can be installed at the lower end of the discharge trough 23 to guide the magnetic metal to a specific position in the collection bin, facilitating subsequent collection and processing.

[0053] Because the magnetic metal will rub against the inner wall of the discharge trough 23 during the discharge process, the inner wall of the discharge trough 23 should be made of wear-resistant material, such as ceramic patches or wear-resistant alloy liners. Ceramic patches have extremely high hardness and wear resistance, which can effectively extend the service life of the discharge trough. At the same time, the inner wall of the discharge trough should be inspected and maintained regularly, and severely worn parts should be replaced in a timely manner.

[0054] To prevent blockage of the discharge chute 23, a vibration device is installed inside the discharge chute 23. When material accumulation or impeded flow is detected in the discharge chute 23, the vibration device automatically starts, using vibration to facilitate the smooth sliding of the magnetic metal. The vibration device can be an electromagnetic vibrator or an eccentric wheel vibrator, and the vibration frequency and amplitude can be adjusted according to the size of the discharge chute and the characteristics of the material.

[0055] As a preferred embodiment of this utility model, see [link to relevant documentation]. Figure 1 and Figure 3 As shown, the frame 7 is a rectangular frame structure, and a plate 10 is connected and covered inside the opening of the frame to isolate the inside of the frame from the external environment.

[0056] Furthermore, to facilitate material transfer, the plate 10 corresponding to the positions of the magnetic metal collection bin 4, non-magnetic metal collection bin 5, and non-metal collection bin 6 on the lower layer of the frame 7 is configured to be openable and closable as needed.

[0057] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A metal separation device for treating waste incinerator slag, characterized in that: It includes a conveyor belt (1), a magnetic metal sorting assembly (2), a non-magnetic metal sorting assembly (3), a magnetic metal collection bin (4), a non-magnetic metal collection bin (5), and a non-metal collection bin (6). The conveyor belt (1) includes a loading end and a unloading end; The magnetic metal sorting component (2) is arranged between the loading end and the unloading end. The magnetic metal is screened and collected from the material to be processed on the conveyor belt (1) by the magnetic metal sorting component (2), and the magnetic metal is transferred to the magnetic metal collection bin (4). The non-magnetic metal sorting component (3) includes a metal detection element (31), an intermediate conveying plate (32), and a driving mechanism (33). The metal detection element (31) is arranged between the feeding end and the magnetic metal sorting component (2) to detect whether there is metal in the material to be processed in the preset area on the conveyor belt (1). The intermediate conveying plate (32) is arranged below the feeding end. The driving mechanism (33) acts on the intermediate conveying plate (32) to adjust the discharge direction of the intermediate conveying plate (32) so that the material on the intermediate conveying plate (32) is transferred to the non-magnetic metal collection bin (5) or the non-metal collection bin (6).

2. The metal separation device for treating waste incinerator slag according to claim 1, characterized in that: It also includes a frame (7), the conveyor belt (1) is horizontally arranged in the middle layer of the frame (7), the magnetic metal collection bin (4), the non-magnetic metal collection bin (5) and the non-metal collection bin (6) are arranged in the lower layer of the frame (7), and a material distributor (9) is fixed on the upper layer of the frame (7). The discharge port of the material distributor (9) corresponds to the feeding end of the conveyor belt (1).

3. The metal separation device for treating waste incinerator slag according to claim 2, characterized in that: The lower layer of the frame (7) is rotatably connected to a rotating shaft (34), and the intermediate conveying plate (32) is fixed on the rotating shaft (34); The driving mechanism (33) is a driving motor. The power output end of the driving motor is connected to the rotating shaft (34) for transmission. By rotating the power output end of the driving motor in the forward or reverse direction, the intermediate conveying plate (32) is driven to rotate around the rotating shaft, so that the discharge direction of the intermediate conveying plate (32) corresponds to the position of the non-magnetic metal collection bin (5) or the non-metal collection bin (6).

4. The metal separation device for treating waste incinerator slag according to claim 2, characterized in that: The bottom of the frame (7) is fixed with multiple casters (8) to facilitate the movement of the frame (7).

5. The metal separation device for treating waste incinerator slag according to claim 1, characterized in that: It also includes a control element. The metal detection element (31) and the drive mechanism (33) are connected to the control element. The control element receives the judgment signal from the metal detection element (31) and outputs an action response signal to the drive mechanism (33) according to the judgment signal. The drive mechanism (33) receives the action response signal and acts on the intermediate conveyor plate (32) to adjust the discharge direction of the intermediate conveyor plate (32) so that the material on the intermediate conveyor plate (32) is transferred to the non-magnetic metal collection bin (5) or the non-metal collection bin (6).

6. The metal separation device for treating waste incinerator slag according to claim 1, characterized in that: The metal detection element (31) is an inductive proximity sensor or a capacitive proximity sensor.

7. The metal separation device for treating waste incinerator slag according to claim 1, characterized in that: The magnetic metal sorting component (2) is a belt magnetic separator (21). The belt magnetic separator (21) is arranged above the conveyor belt (1), and the material transmission direction of the belt magnetic separator (21) is perpendicular to the material transmission direction of the conveyor belt (1). A discharge chute (23) is fixed on the side of the conveyor belt (1) at a position corresponding to the material transmission end of the belt magnetic separator (21). The lower end of the discharge chute (23) extends to the magnetic metal collection bin (4). The magnetic metal on the conveyor belt of the belt magnetic separator (21) is separated by the discharge chute (23), and the magnetic metal is discharged into the magnetic metal collection bin (4) along the discharge chute (23).

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