Intelligent visual material component detecting and screening equipment

Abstract

The invention discloses intelligent visual material component detecting and screening equipment which is characterized in that the lower parts of a material conveying belt and a high-frequency coil device are fixed on the ground through a bracket, a conveying belt part of the material conveying belt penetrates through the high-frequency coil device, and a thermal imager master controller is connected to the high-frequency coil device through a supporting rod; a front thermal imager and a rear thermal imager which are the same in structure are arranged below the thermal imager master controller, the front thermal imager and the rear thermal imager are arranged on the two sides of the supporting rod respectively, and the front thermal imager, the supporting rod and the rear thermal imager are arranged in a row in the movement direction of the material conveying belt. And the material screening air tap is arranged below the tail part of the material conveying belt and is electrically connected with the thermal imager main controller. According to the invention, high-frequency heating is utilized, thermal imaging acquisition is respectively carried out on materials before and after heating by using the visual assembly, a conductor and a non-conductor are distinguished by analyzing and comparing the difference of two times of imaging, metal components are screened out, and finally materials with other components are removed.

Description

Technical Field

[0001] This invention relates to the field of material detection and screening technology, specifically to a smart vision-based material composition detection and screening device. Background Technology

[0002] Cities generate a large amount of household waste every day, and waste management is a significant test of a city's management capabilities. With the development of technology and environmental protection requirements, the main waste disposal method has transitioned from centralized landfill to incineration power generation. Waste incineration ash refers to the ash produced after waste is incinerated in a waste incinerator. The composition of the ash varies depending on the type of waste. The ash includes bottom ash and residue after flue gas purification. This residue requires rigorous treatment and still has value; many types of ash have important uses. For example, ash contains certain amounts of heavy metals such as iron, zinc, copper, and chromium, which have recycling value and can be used for resource recovery and redevelopment.

[0003] Slag has a complex composition and requires sorting and screening to recover slag containing metal components. Existing sorting and screening equipment struggles to thoroughly classify slag, leading to varying degrees of resource waste. Therefore, to address these issues, we have designed an intelligent vision-based material composition detection and screening device. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a smart vision material composition detection and screening device. It uses high-frequency heating and a vision component to perform thermal imaging acquisition on the material before and after heating. By analyzing and comparing the differences between the two images, it can distinguish between conductors and non-conductors, screen out metal components, analyze the types of metals, and finally remove materials with other components. This can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a smart vision material composition detection and screening device, comprising a material conveyor belt, a front thermal imager, a high-frequency coil device, a thermal imager main controller, and a rear thermal imager;

[0006] The material conveyor belt and the high-frequency coil device are fixed to the ground by a bracket, and the conveyor belt portion of the material conveyor belt passes through the high-frequency coil device. The high-frequency coil device is connected to the thermal imager main controller by a support rod. Below the thermal imager main controller, there are front and rear thermal imagers with the same structure. The front and rear thermal imagers are respectively set on both sides of the support rod, and the front thermal imager, support rod, and rear thermal imager are arranged in a row along the direction of material conveyor belt movement. The high-frequency coil device is electrically connected to a high-frequency power supply, and the front and rear thermal imagers are electrically connected to the thermal imager main controller.

[0007] It also includes a screening nozzle, which is located below the tail of the material conveyor belt and is electrically connected to the main controller of the thermal imager.

[0008] Heating is achieved using a high-frequency coil device. Thermal images of the material before and after heating are collected by a front thermal imager and a rear thermal imager. The thermal imager controller analyzes and compares the differences between the two images to distinguish between conductors and non-conductors, screen out metallic components, analyze the types of metals, and finally remove other components of the material by a screening nozzle.

[0009] Furthermore, the front thermal imager includes a thermal imager body, a thermal imaging lens, and a mounting bracket. The upper part of the thermal imager body is fixedly connected to the thermal imager main controller through the mounting bracket, and the lower part of the thermal imager body is provided with a thermal imaging lens. The front thermal imager takes pictures of the material before heating and obtains thermal imaging image data of the material to be inspected before heating.

[0010] Furthermore, the vertical distance between the thermal imaging lens and the material conveyor belt is 20-40cm.

[0011] Furthermore, the high-frequency coil device includes a housing, a channel, and a high-frequency heating coil. The channel is located at the center of the housing, and the high-frequency heating coil is located inside the housing. The high-frequency heating coil is nested outside the channel, and the coil is heated by high-frequency current to heat the material to be inspected passing through the channel.

[0012] Furthermore, heat dissipation fins are provided on the front and rear sides of the outer side of the enclosure. The heat dissipation fins are vertically arranged and help dissipate heat to maintain a constant temperature environment.

[0013] Furthermore, the thermal imager main controller includes a housing, a control chip, an image processing chip, a memory, and a data transceiver. The control chip, image processing chip, memory, and data transceiver are fixedly installed inside the thermal imager main controller. The control chip is electrically connected to the image processing chip, memory, and data transceiver respectively. The thermal imager main controller analyzes and detects the thermal imaging data of the material to be inspected before and after heating, and sends command signals to other devices.

[0014] Furthermore, the housing is equipped with displays on both the front and back, which are electrically connected to the control chip, allowing operators to conveniently view data from the front or back during operation.

[0015] Furthermore, the air nozzle of the screening nozzle is oriented at an angle of 30°-60°.

[0016] A method for using a smart visual material composition detection and screening device includes the following steps:

[0017] S1 places the material on the material conveyor belt. The material conveyor belt runs. When the material to be inspected moves under the front thermal imager, the front thermal imager acquires the image and uploads it to the thermal imager main controller.

[0018] S2 material moves along the material conveyor belt and passes through the high-frequency coil device to heat the material;

[0019] After the S3 material is separated from the high-frequency coil device, it continues to move. When the material to be inspected moves to the bottom of the rear thermal imager, the rear thermal imager acquires the image and uploads it to the thermal imager main controller.

[0020] The S4 thermal imager's main controller analyzes the thermal imaging data acquired twice and removes some materials.

[0021] The S5 thermal imager's main controller sends a command to the screening nozzle. When the material to be removed reaches the top of the screening nozzle, the nozzle blows it away.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: This intelligent vision material composition detection and screening device has the following advantages:

[0023] 1. By using high-frequency heating, thermal imaging is performed on the materials before and after heating. By analyzing and comparing the differences between the two images, conductors and non-conductors can be distinguished, metal components can be screened out, metal types can be analyzed, and materials with other components can be removed. Since the thermal imaging images of different components are different, the detection error of components is small, the screening accuracy is high, data waste is reduced, and economic benefits are created.

[0024] 2. During the screening process, the material is placed on the material conveyor belt. As the conveyor belt runs, when the material to be inspected moves under the front thermal imager, the front thermal imager acquires an image and uploads it to the thermal imager main controller. The material moves with the material conveyor belt, passing through the high-frequency coil device, which heats the material. After the material leaves the high-frequency coil device, it continues to move. When the material to be inspected moves under the rear thermal imager, the rear thermal imager acquires an image and uploads it to the thermal imager main controller. The thermal imager main controller analyzes the thermal imaging data acquired in the two tests and rejects some of the material. The thermal imager main controller sends a command to the screening air nozzle. When the material to be rejected reaches the top of the screening air nozzle, the screening air nozzle blows it away. Attached Figure Description

[0025] Figure 1 This is a perspective view of a smart visual material composition detection and screening device according to the present invention;

[0026] Figure 2 This is a front view of a smart visual material composition detection and screening device according to the present invention;

[0027] Figure 3This is a top view of a smart visual material composition detection and screening device according to the present invention;

[0028] Figure 4 This is a bottom view of a smart visual material composition detection and screening device according to the present invention;

[0029] Figure 5 This is a side view of a smart visual material composition detection and screening device according to the present invention;

[0030] Figure 6 This is a schematic diagram of the front thermal imager in this invention;

[0031] Figure 7 This is a perspective view of the high-frequency coil device in this invention;

[0032] Figure 8 This is a cross-sectional view of the high-frequency coil device in this invention;

[0033] Figure 9 This is a diagram showing the internal structure of the thermal imager main controller in this invention.

[0034] In the diagram: 1. Material conveyor belt; 2. Front thermal imager; 21. Thermal imager body; 22. Thermal imaging lens; 23. Mounting bracket; 3. High-frequency coil device; 31. Housing; 32. Channel; 33. Heat dissipation fins; 34. High-frequency heating coil; 4. Thermal imager main controller; 41. Housing; 42. Display screen; 43. Control chip; 44. Image processing chip; 45. Memory; 46. Data transceiver; 5. Rear thermal imager; 6. Screening air nozzle; 7. Support rod. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0037] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0039] Please see Figure 1-9 The present invention provides the following technical solutions:

[0040] Example 1: A smart visual material composition detection and screening device includes a material conveyor belt 1, a front thermal imager 2, a high-frequency coil device 3, a thermal imager main controller 4, and a rear thermal imager 5. The lower parts of the material conveyor belt 1 and the high-frequency coil device 3 are fixed to the ground by a bracket, and the conveyor belt portion of the material conveyor belt 1 passes through the high-frequency coil device 3. The thermal imager main controller 4 is connected to the high-frequency coil device 3 by a support rod 7. The front thermal imager 2 and the rear thermal imager 5 with the same structure are arranged below the thermal imager main controller 4. The front thermal imager 2 and the rear thermal imager 5 are respectively arranged on both sides of the support rod 7, and the front thermal imager 2, the support rod 7, and the rear thermal imager 5 are arranged in a row along the direction of movement of the material conveyor belt 1. The high-frequency coil device 3 is electrically connected to a high-frequency power supply, and the front thermal imager 2 and the rear thermal imager 5 are electrically connected to the thermal imager main controller 4. The device also includes a screening nozzle 6, which is located below the tail of the material conveyor belt 1 and is electrically connected to the thermal imager main controller 4.

[0041] Heating is achieved using a high-frequency coil device 3. Thermal imaging is performed on the material before and after heating by a front thermal imager 2 and a rear thermal imager 5. The thermal imager main controller 4 analyzes and compares the differences between the two images to distinguish between conductors and non-conductors, screen out metal components, analyze the types of metals, and finally removes other components of the material by a screening nozzle 6.

[0042] The front thermal imager 2 includes a thermal imager body 21, a thermal imaging lens 22, and a mounting bracket 23. The upper part of the thermal imager body 21 is fixedly connected to the thermal imager main controller 4 via the mounting bracket 23. The thermal imaging lens 22 is installed at the lower part of the thermal imager body 21. The front thermal imager 2 takes pictures of the material before heating to obtain thermal imaging image data of the material to be inspected before heating. The vertical distance between the thermal imaging lens 22 and the material conveyor belt 1 is 20-40cm.

[0043] Example 2:

[0044] The difference between this embodiment and Embodiment 1 is that:

[0045] In this embodiment, the high-frequency coil device 3 includes a housing 31, a channel 32, and a high-frequency heating coil 34. The channel 32 is located at the center of the housing 31, and the high-frequency heating coil 34 is located inside the housing 31. The high-frequency heating coil 34 is nested on the outside of the channel 32 and uses high-frequency current to heat the coil, thereby heating the material to be inspected passing through the channel 32.

[0046] The enclosure 31 has heat dissipation fins 33 on its front and rear sides. The heat dissipation fins 33 are vertically arranged and help dissipate heat to maintain a constant temperature environment. Several cooling fans can also be installed on the outer wall of the enclosure 31.

[0047] Example 3:

[0048] The difference between this embodiment and Embodiment 1 is that:

[0049] In this embodiment, the thermal imager main controller 4 includes a housing 41, a control chip 43, an image processing chip 44, a memory 45, and a data transceiver 46. The control chip 43, the image processing chip 44, the memory 45, and the data transceiver 46 are fixedly installed inside the thermal imager main controller 4. The control chip 43 is electrically connected to the image processing chip 44, the memory 45, and the data transceiver 46 respectively. The thermal imager main controller 4 analyzes and detects the thermal imaging data of the material to be inspected before and after heating, and sends command signals to other devices. The housing 41 is provided with a display screen 42 on both the front and back. The display screen 42 is electrically connected to the control chip 43, which allows the operator to view the data in front or behind during operation.

[0050] Among them, the air nozzle 6 of the screening nozzle is oriented at 30°-60°.

[0051] The method of using the intelligent visual material composition detection and screening device described in Examples 1-3 includes the following steps:

[0052] S1 places the material on the material conveyor belt 1. The material conveyor belt 1 runs. When the material to be inspected moves to the front thermal imager 2, the front thermal imager 2 collects the image and uploads it to the thermal imager main controller 4.

[0053] S2 material moves with material conveyor belt 1 and passes through high frequency coil device 3 to heat the material;

[0054] After the material S3 is separated from the high-frequency coil device 3, it continues to move. When the material to be inspected moves to the underside of the rear thermal imager 5, the rear thermal imager 5 acquires the image and uploads it to the thermal imager main controller 4.

[0055] The S4 thermal imager main controller 4 analyzes the thermal imaging data acquired twice and removes some materials.

[0056] The S5 thermal imager main controller 4 sends a command to the screening nozzle 6. When the material to be removed reaches the top of the screening nozzle 6, the screening nozzle 6 blows it away.

[0057] The working principle of the intelligent visual material composition detection and screening device provided by this invention is as follows: Thermal imaging mainly collects light in the thermal infrared band (8μm-14μm) to detect the thermal radiation emitted by objects. Thermal imaging converts thermal radiation into grayscale values, and then uses the differences in grayscale values ​​of various objects to create an image. After system processing, it is converted into a thermal image of the target object, displayed in grayscale or pseudo-color, thereby discovering and identifying the target. The thermal imager is a detection device that detects infrared energy (heat) non-contactly, converts it into an electrical signal, and then generates a thermal image and temperature value on the display, and can calculate the temperature value. Heating is achieved using a high-frequency coil device 3. Thermal imaging is performed on the material before and after heating by the front thermal imager 2 and the rear thermal imager 5 respectively. The thermal imager main controller 4 analyzes and compares the differences between the two images to distinguish conductors and non-conductors, screen out metallic components, analyze the types of metals, and finally blows out the other components of the material by the screening nozzle 6.

[0058] It is worth noting that the front thermal imager 2 and rear thermal imager 5 disclosed in the above embodiments can be equipped with existing products according to their needs. In the thermal imager main controller 4, the control chip 43 uses existing methods to control the display screen 42, image processing chip 44, memory 45, data transceiver 46 and screen nozzle 6.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart vision-based material composition detection and screening device, characterized in that: It includes a material conveyor belt (1), a front thermal imager (2), a high-frequency coil device (3), a thermal imager main controller (4), and a rear thermal imager (5); The material conveyor belt (1) and the high-frequency coil device (3) are fixed to the ground by a bracket, and the conveyor belt part of the material conveyor belt (1) passes through the high-frequency coil device (3). The high-frequency coil device (3) is connected to the thermal imager main controller (4) by a support rod (7). The thermal imager main controller (4) is provided with a front thermal imager (2) and a rear thermal imager (5) with the same structure below it. The front thermal imager (2) and the rear thermal imager (5) are respectively set on both sides of the support rod (7), and the front thermal imager (2), the support rod (7) and the rear thermal imager (5) are arranged in a row along the direction of movement of the material conveyor belt (1). The high-frequency coil device (3) is electrically connected to a high-frequency power supply, and the front thermal imager (2) and the rear thermal imager (5) are electrically connected to the thermal imager main controller (4). It also includes a screening nozzle (6), which is located below the tail of the material conveyor belt (1) and is electrically connected to the thermal imager main controller (4).

2. The intelligent visual material composition detection and screening device according to claim 1, characterized in that: The front thermal imager (2) includes a thermal imager body (21), a thermal imaging lens (22), and a mounting bracket (23). The upper part of the thermal imager body (21) is fixedly connected to the thermal imager main controller (4) through the mounting bracket (23). The thermal imager body (21) is provided with a thermal imaging lens (22) at the lower part. The front thermal imager (2) takes pictures of the material before heating and obtains thermal imaging image data of the material to be inspected before heating.

3. The intelligent visual material composition detection and screening device according to claim 2, characterized in that: The vertical distance between the thermal imaging lens (22) and the material conveyor belt (1) is 20-40cm.

4. The intelligent visual material composition detection and screening device according to claim 1, characterized in that: The high-frequency coil device (3) includes a housing (31), a channel (32) and a high-frequency heating coil (34). The channel (32) is located at the center of the housing (31). The high-frequency heating coil (34) is located inside the housing (31). The high-frequency heating coil (34) is nested outside the channel (32). The coil is heated by high-frequency current to heat the material to be inspected passing through the channel (32).

5. The intelligent visual material composition detection and screening device according to claim 4, characterized in that: The outer side of the housing (31) is provided with heat dissipation fins (33) on the front and back sides. The heat dissipation fins (33) are arranged vertically and help dissipate heat to maintain a constant temperature environment.

6. The intelligent visual material composition detection and screening device according to claim 1, characterized in that: The thermal imager main controller (4) includes a housing (41), a control chip (43), an image processing chip (44), a memory (45), and a data transceiver (46). The thermal imager main controller (4) has the control chip (43), image processing chip (44), memory (45), and data transceiver (46) fixedly installed inside. The control chip (43) is electrically connected to the image processing chip (44), memory (45), and data transceiver (46) respectively. The thermal imager main controller (4) analyzes and detects the thermal imaging data of the material to be inspected before and after heating, and sends command signals to other devices.

7. The intelligent visual material composition detection and screening device according to claim 6, characterized in that: The housing (41) is equipped with a display screen (42) on both the front and back. The display screen (42) is electrically connected to the control chip (43). During operation, it is convenient for the operator to view the data from the front or back.

8. The intelligent visual material composition detection and screening device according to claim 1, characterized in that: The air nozzle (6) of the screen material is oriented at 30°-60°.

9. A method of using the intelligent visual material composition detection and screening device according to any one of claims 1-8, characterized in that, Includes the following steps: S1 places the material on the material conveyor belt (1), the material conveyor belt (1) runs, and when the material to be inspected travels to the front thermal imager (2), the front thermal imager (2) collects images and uploads them to the thermal imager main controller (4). S2 material moves with the material conveyor belt (1) and passes through the high-frequency coil device (3) to heat the material; After the S3 material leaves the high-frequency coil device (3), it continues to move. When the material to be inspected travels to the rear thermal imager (5), the rear thermal imager (5) acquires the image and uploads it to the thermal imager main controller (4). The S4 thermal imager main controller (4) analyzes the thermal imaging data acquired twice and removes some materials; The S5 thermal imager main controller (4) sends a command to the screening nozzle (6). When the material to be removed reaches the top of the screening nozzle (6), the screening nozzle (6) blows it away.

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