Waste steel quality inspection method and system

Abstract

The invention provides a scrap steel quality inspection method and system, and belongs to the technical field of scrap steel quality inspection. Comprising the steps that S1, a scrap steel transport vehicle arrives at a scrap steel quality inspection camera coverage area; s2, the system automatically identifies the shape and size of the scrap steel in the area according to the selected area range; s3, a quality inspector confirms unqualified information of the waste steel; s4, a quality inspector remotely controls the electromagnetic crane to unload according to layers, and steel scrap which is subjected to quality inspection on the upper layer is unloaded; s5, after all the scrap steel in the carriage is unloaded, the system captures the condition of residual non-metal impurities at the bottom of the carriage and stores a picture; and S6, a quality inspector enters a quality inspection system to detect the severity of water, oil stain and paint on the surface layer of the waste steel. The system comprises a camera module, a server and a terminal display, a scrap steel quality inspection software program is designed through an image recognition technology, automatic quality inspection of scrap steel is achieved, quality inspection is operated on a system terminal, the labor intensity of quality inspectors and environmental hazards are reduced, and meanwhile the situation that the quality inspectors are dangerous on site is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of scrap steel quality testing, and in particular to a scrap steel quality testing method and system. Background Art

[0002] Scrap steel is the main raw material for steel companies to smelt molten steel. Most of the scrap steel used in steel companies to smelt molten steel comes from external procurement. The types of purchased scrap steel are complicated and the quality difference is large. Due to the particularity of scrap steel raw materials, the accuracy of scrap steel quality inspection and judgment is poor, which is easy to cause disputes. After the scrap steel is pulled to the site, it needs to be inspected. Because it is scrap steel, impurities such as scraps are everywhere, which leads to a poor inspection site environment, such as dust and clutter, which greatly affects the health of on-site inspectors and also poses a safety risk. Therefore, the quality inspection of purchased scrap steel is a pain point in the management of steel companies, so a scrap steel quality inspection method and system are proposed to solve the above problems. Summary of the invention

[0003] In order to make up for the above deficiencies, the present invention provides a scrap steel quality inspection method and system that overcomes the above technical problems or at least partially solves the above problems.

[0004] The present invention is achieved in that: The present invention provides a scrap steel quality testing method, comprising: S1. The scrap steel transport vehicle arrives at the area covered by the scrap steel quality inspection camera. The quality inspector uses the operation terminal to enter the scrap steel transport vehicle number and collects the pre-quality inspection scrap steel information from the incoming material management system through the quality inspection system; S2. The quality inspector selects the scrap steel inspection area in the carriage on the inspection display interface, and the system automatically identifies the shape and size of the scrap steel in the area according to the selected area; S3. The quality inspector confirms the unqualified scrap steel information and takes a snapshot of the image to save it; S4. The quality inspector remotely controls the electromagnetic crane to unload the truck by layer, removes the scrap steel that has been inspected on the upper layer, and picks out the unqualified scrap steel, that is, the scrap steel that exceeds the upper limit and the sealed container are stacked separately; S5. After all the scrap steel in the carriage is unloaded, the system captures the non-metallic impurities remaining at the bottom of the carriage and saves the picture. The quality inspector evaluates the weight of the non-metallic impurities remaining at the bottom of the carriage and enters it into the quality inspection system. S6. The quality inspector enters the quality inspection system to detect the severity of water content, oil and paint on the surface of the scrap steel. The system deducts the water content and oil and paint amount of the scrap steel according to the severity, confirms that the quality inspection of the scrap steel on the truck is completed, generates a scrap steel quality inspection report by truck number and imports it into the incoming material management system, and then safely disposes of the unqualified scrap steel.

[0005] In a preferred solution, the quality inspector in S1 uses the operation terminal to input the vehicle number of the transport vehicle, and also inputs the supplier name, the delivery person, the type of scrap steel, the heavy-load vehicle weight information and additional instructions.

[0006] In a preferred solution, the system in S2 can identify and count the scrap steel, and can identify the size and count the quantity of the scrap steel. For example, the scrap steel exceeding the maximum size, the number of pieces and the weight of the closed container are counted. The oversized and closed containers are displayed in yellow and red flashing colors respectively, and a warning sound is issued. The weight proportion of scrap steel of different thicknesses is counted according to 5 thickness specifications.

[0007] In a preferred solution, the operations in S1-S5 are to identify and count the scrap steel on one transport vehicle. After the counting is completed, the scrap steel on another transport vehicle is identified and counted, and the identification and counting are performed in the same manner as in S1-S5.

[0008] In a preferred solution, after the S5 operation is completed, the system will accumulate and count the scrap steel with out-of-tolerance sizes, the number of pieces in closed containers and their weight percentages, and accumulate and count the weight percentages of scrap steel with different thicknesses of 5 thickness specifications.

[0009] In a preferred solution, the shape and size of the scrap steel are identified in S2, and scrap steel exceeding the maximum requirements and closed containers are defined as unqualified scrap steel. The closed container accumulated scrap steel includes tubular scrap steel with both ends blocked, box scrap steel, tank scrap steel and explosives.

[0010] In a preferred embodiment, the box body scrap steel includes one or more of oil tanks and water tanks, the tank body scrap steel includes gas tanks and other closed containers, and the explosive includes one or more of detonators and shells.

[0011] In a preferred solution, the scrap steel size identification in S2 refers to the length, width and thickness of the tubular scrap steel wall, and a maximum size upper limit is set in the system.

[0012] In a preferred solution, the S2 focuses on scrap steel identification, and can also deduct the weight of non-metallic inclusions according to manual instructions, and deduct the weight of moisture and oil and paint respectively according to the degree of moisture and oil and paint in the scrap steel.

[0013] A scrap steel quality inspection system, comprising: A camera module, which is used to record information about scrap steel on the transport vehicle; A server, the server being connected to the camera module and used to transmit the information recorded by the camera module through the server; The terminal display collects information transmitted by the server and has an operation interface on the terminal display. The quality inspector enters the factory material management system through the link and identifies the shape, size and weight of the scrap steel through automatic operation of the system.

[0014] The present invention provides a method and system for testing the quality of scrap steel, and its beneficial effects include: 1. The present invention designs a scrap steel quality inspection software program through image recognition technology, realizes automatic scrap steel quality inspection, and greatly improves the accuracy of scrap steel quality inspection. Both the supply and demand sides recognize the quality inspection process and quality inspection results, reducing quality inspection disputes. The quality inspection is fully automatic without human intervention, which prevents fraud. In addition, quality inspectors can operate the quality inspection at the system terminal through camera images, which reduces the labor intensity and environmental hazards of quality inspectors, and also avoids dangerous situations for quality inspectors on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a flow chart of the method of the present invention; Figure 2 This is a system diagram of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] Reference Figure 1-Figure 2 The present invention provides a technical solution: a method for testing the quality of scrap steel, comprising: S1. The scrap steel transport vehicle arrives at the area covered by the scrap steel quality inspection camera. The quality inspector uses the operation terminal to enter the scrap steel transport vehicle number and collects the pre-quality inspection scrap steel information from the incoming material management system through the quality inspection system; S2. The quality inspector selects the scrap steel inspection area in the carriage on the inspection display interface, and the system automatically identifies the shape and size of the scrap steel in the area according to the selected area; S3. The quality inspector confirms the unqualified scrap steel information and takes a snapshot of the image to save it; S4. The quality inspector remotely controls the electromagnetic crane to unload the truck by layer, removes the scrap steel that has been inspected on the upper layer, and picks out the unqualified scrap steel, that is, the scrap steel that exceeds the upper limit and the sealed container are stacked separately; S5. After all the scrap steel in the carriage is unloaded, the system captures the non-metallic impurities remaining at the bottom of the carriage and saves the picture. The quality inspector evaluates the weight of the non-metallic impurities remaining at the bottom of the carriage and enters it into the quality inspection system. S6. The quality inspector enters the quality inspection system to detect the severity of water content, oil and paint on the surface of the scrap steel. The system deducts the water content and oil and paint amount of the scrap steel according to the severity, confirms that the quality inspection of the scrap steel on the truck is completed, generates a scrap steel quality inspection report by truck number and imports it into the incoming material management system, and then safely disposes of the unqualified scrap steel.

[0019] In a preferred embodiment, in S1, the quality inspector uses the operation terminal to input the vehicle number of the transport vehicle, and also inputs the supplier name, the delivery person, the type of scrap steel, the heavy-load vehicle weight information and additional instructions.

[0020] In a preferred embodiment, the system in S2 can identify and count the scrap steel, and can identify the size and count the quantity of the scrap steel. For example, the scrap steel exceeding the maximum size, the number of pieces and the weight of the closed container are counted. The oversized and closed containers are displayed in yellow and red flashing colors respectively, and a warning sound is issued. The weight proportion of scrap steel of different thicknesses is counted according to 5 thickness specifications.

[0021] In a preferred embodiment, the operations in S1-S5 are to identify and count the scrap steel on one transport vehicle. After the counting is completed, the scrap steel on another transport vehicle is identified and counted, and the identification and counting are performed in the same manner as in S1-S5.

[0022] After the S5 operation is completed, the system will accumulate and count the scrap steel with out-of-tolerance sizes, the number of pieces in closed containers and their weight percentages, and accumulate and count the weight percentages of scrap steel with different thicknesses of 5 thickness specifications.

[0023] In the S2, the shape and size of the scrap steel are identified, and the scrap steel exceeding the maximum requirements and the closed container type are defined as unqualified scrap steel. The closed container accumulated scrap steel includes tubular scrap steel with both ends blocked, box scrap steel, tank scrap steel and explosives.

[0024] The box body scrap steel includes one or more of oil tanks and water tanks, the tank body scrap steel includes gas tanks and other closed containers, and the explosives include one or more of detonators and shells.

[0025] The scrap steel size identification in S2 refers to the length, width and thickness of the tubular scrap steel wall, and a maximum size upper limit is set in the system.

[0026] The S2 focuses on scrap steel identification, and can also deduct the weight of non-metallic inclusions according to manual instructions, and deduct the weight of moisture and oil and paint respectively according to the degree of moisture, oil and paint in the scrap steel.

[0027] A scrap steel quality inspection system, comprising: A camera module, which is used to record information about scrap steel on the transport vehicle; A server, the server being connected to the camera module and used to transmit the information recorded by the camera module through the server; The terminal display collects information transmitted by the server and has an operation interface on the terminal display. The quality inspector enters the factory material management system through the link and identifies the shape, size and weight of the scrap steel through automatic operation of the system.

[0028] Specifically, the working process or working principle of a scrap steel quality inspection method and system is as follows: scrap steel is the main raw material for steel enterprises to smelt molten steel. Most of the scrap steel used by steel enterprises to smelt molten steel comes from external procurement. The types of purchased scrap steel are complicated and the quality difference is large. Due to the particularity of the scrap steel raw materials, the accuracy of scrap steel quality inspection and judgment is poor, which is easy to cause disputes. After the scrap steel is pulled to the site, it needs to be inspected. Because it is scrap steel, impurities such as scraps are everywhere, which leads to a poor inspection site environment, such as dust and clutter, which greatly affects the health of on-site inspectors and also has safety risks. Therefore, the quality inspection of purchased scrap steel is a pain point in the management of steel enterprises, so this method and system are designed to solve this problem.

[0029] The present invention designs a scrap steel quality inspection software program through image recognition technology, realizes automatic scrap steel quality inspection, greatly improves the scrap steel quality inspection accuracy, and both supply and demand parties recognize the quality inspection process and quality inspection results, reduces quality inspection disputes, and automatically inspects the quality throughout the process without human intervention, thereby preventing fraud, and the quality inspector operates the quality inspection on the system terminal through the camera image, thereby reducing the labor intensity and environmental hazards of the quality inspector, and also avoiding the danger of the quality inspector on the scene. The specific operation is that the quality inspector enters the factory material management system by clicking a link on the computer in the background, when the transport vehicle transporting the scrap steel starts to the designated area, the scrap steel transport vehicle arrives at the scrap steel quality inspection camera coverage area, and after entering the camera coverage area, the scrap steel on the transport vehicle is recorded through the camera, and the quality inspector also uses the operation terminal to input the scrap steel transport vehicle number, collects pre-quality inspection scrap steel information from the factory material management system through the quality inspection system, and the quality inspector selects the scrap steel quality inspection area range in the carriage on the quality inspection display interface, and the system automatically identifies the shape and size of the scrap steel in the area according to the selected area range, and can also calculate the weight of the scrap steel.

[0030] Since not all scrap steel transported by the transport vehicle is qualified, the quality inspector will identify the scrap steel based on the system and display the unqualified information on the interface. The system will automatically take a screenshot of the unqualified products and save the images of the unqualified scrap steel. For example, for some scrap steel that exceeds the size, or does not match the shape or weight, the system will mark it on the picture and display it in flashing yellow and red, and issue a warning sound to remind the quality inspector to detect unqualified products. The upper limit of the scrap steel's outer dimensions is set. The scrap steel whose outer dimensions exceed the upper limit requirements is painted yellow and flashes, and the number and weight of the pieces exceeding the upper limit are counted. The closed containers in the scrap steel are identified, the closed containers are painted red and flashed, and the number and weight of the closed containers are counted. Since the number of unqualified products is not single, when the number is large, the weight proportion of scrap steel of different thicknesses will be counted according to 5 thickness specifications.

[0031] Then the quality inspector remotely controls the electromagnetic crane to unload the car layer by layer, unloads the scrap steel that has been inspected on the upper layer, and picks out the unqualified scrap steel, that is, the scrap steel that exceeds the upper limit and the sealed containers are stacked separately. As the scrap steel on the upper layer is unloaded, the scrap steel on the next layer will be revealed, and the scrap steel will continue to be inspected according to the above method. After the inspection, the modified scrap steel will be unloaded. Similarly, the scrap steel that exceeds the upper limit and the sealed containers are picked out separately and stacked together. When the scrap steel inside the car is unloaded, the system will capture the non-metallic impurities remaining at the bottom of the car and save the picture. The quality inspector will evaluate the weight of the non-metallic impurities remaining at the bottom of the car and enter it into the quality inspection system. After unloading the scrap steel on one car, this method can be used to continue to inspect the other car.

[0032] Since the outer surface of scrap steel may contain water, oil and paint, which will affect the quality of the scrap steel, the system will deduct the water content, oil and paint content of the scrap steel according to the severity, confirm that the quality inspection of the scrap steel in the vehicle has been completed, generate a scrap steel quality inspection report by vehicle number and import it into the incoming material management system, and then safely dispose of the unqualified scrap steel.

[0033] The present invention requires that the scrap steel used for molten steel smelting is cut and processed into blocks of certain sizes and shapes, with maximum size restrictions, and closed container scrap steel is not allowed. Closed container scrap steel refers to tubular scrap steel with both ends blocked, box scrap steel (oil tank, water tank, etc.), tank scrap steel (gas tank and other closed containers), explosives (detonators, shells, etc.), etc., and it is stipulated that scrap steel exceeding the maximum requirements and closed containers are unqualified scrap steel.

[0034] For scrap steel size inspection, the maximum size limits can be set for the length, width and thickness (wall thickness of tubular scrap steel) of the scrap steel, and the number (number of pieces and weight) exceeding the maximum size limits can be counted. Since the scrap steel is placed outdoors for a long time, there will be water, oil, paint and other non-metallic impurities mixed in the scrap steel on the outer surface of the scrap steel. This system can realize the weight deduction of water, oil, paint and non-metallic impurities.

[0035] The present invention inspects the quality of each truckload of scrap steel in layers before unloading. After the inspection is completed, one layer is unloaded by suction using an electromagnetic crane. Each truckload can be inspected in multiple layers, and the inspection results are accumulated. After the scrap steel transported by the transport truck is unloaded, a scrap steel inspection report (statement) will be generated, and the inspection results will be uploaded to the factory material management system, and the inspection process records, inspection records and result inquiries will be generated and stored.

Claims

1. A method for testing the quality of scrap steel, characterized in that: include: S1. The scrap steel transport vehicle arrives at the area covered by the scrap steel quality inspection camera. The quality inspector uses the operation terminal to enter the scrap steel transport vehicle number and collects the pre-quality inspection scrap steel information from the incoming material management system through the quality inspection system; S2. The quality inspector selects the scrap steel inspection area in the carriage on the inspection display interface, and the system automatically identifies the shape and size of the scrap steel in the area according to the selected area; S3. The quality inspector confirms the unqualified scrap steel information and takes a snapshot of the image to save it; S4. The quality inspector remotely controls the electromagnetic crane to unload the truck by layer, removes the scrap steel that has been inspected on the upper layer, and picks out the unqualified scrap steel, that is, the scrap steel that exceeds the upper limit and the sealed container are stacked separately; S5. After all the scrap steel in the carriage is unloaded, the system captures the non-metallic impurities remaining at the bottom of the carriage and saves the picture. The quality inspector evaluates the weight of the non-metallic impurities remaining at the bottom of the carriage and enters it into the quality inspection system. S6. The quality inspector enters the quality inspection system to detect the severity of water content, oil and paint on the surface of the scrap steel. The system deducts the water content and oil and paint amount of the scrap steel according to the severity, confirms that the quality inspection of the scrap steel on the truck is completed, generates a scrap steel quality inspection report by truck number and imports it into the incoming material management system, and then safely disposes of the unqualified scrap steel.

2. A method for testing the quality of scrap steel according to claim 1, characterized in that: In S1, the quality inspector uses the operation terminal to input the vehicle number of the transport vehicle, and also inputs the supplier name, the delivery person, the type of scrap steel, the heavy-load vehicle weight information and additional instructions.

3. A method for testing the quality of scrap steel according to claim 2, characterized in that: In S2, the system identifies and counts the scrap steel, and can identify the size and count the quantity of the scrap steel. For example, the scrap steel exceeding the maximum size, the number of pieces and the weight of the sealed container are counted. The oversized and sealed containers are displayed in yellow and red flashing colors respectively, and a warning sound is issued. The weight proportion of scrap steel of different thicknesses is counted according to 5 thickness specifications.

4. A method for testing the quality of scrap steel according to claim 3, characterized in that: The operations in S1-S5 are to identify and count the scrap steel on one transport vehicle. After the counting is completed, the scrap steel on another transport vehicle is identified and counted, and the identification and counting are performed in the same manner as in S1-S5.

5. A method for testing the quality of scrap steel according to claim 4, characterized in that: After the S5 operation is completed, the system will accumulate and count the scrap steel with out-of-tolerance sizes, the number of pieces in closed containers and their weight percentages, and accumulate and count the weight percentages of scrap steel with different thicknesses of 5 thickness specifications.

6. A method for testing the quality of scrap steel according to claim 5, characterized in that: In the S2, the shape and size of the scrap steel are identified, and the scrap steel exceeding the maximum requirements and the closed container type are defined as unqualified scrap steel. The closed container accumulated scrap steel includes tubular scrap steel with both ends blocked, box scrap steel, tank scrap steel and explosives.

7. A method for testing the quality of scrap steel according to claim 6, characterized in that: The box body scrap steel includes one or more of oil tanks and water tanks, the tank body scrap steel includes gas tanks and other closed containers, and the explosives include one or more of detonators and shells.

8. A method for testing the quality of scrap steel according to claim 7, characterized in that: The scrap steel size identification in S2 refers to the length, width and thickness of the tubular scrap steel wall, and a maximum size upper limit is set in the system.

9. A method for testing the quality of scrap steel according to claim 8, characterized in that: The S2 focuses on scrap steel identification, and can also deduct the weight of non-metallic inclusions according to manual instructions, and deduct the weight of moisture and oil and paint respectively according to the degree of moisture, oil and paint in the scrap steel.

10. A scrap steel quality testing system, applicable to a scrap steel quality testing method according to any one of claims 1 to 9, characterized in that: include: A camera module, which is used to record information about scrap steel on the transport vehicle; A server, the server being connected to the camera module and used to transmit the information recorded by the camera module through the server; The terminal display collects information transmitted by the server and has an operation interface on the terminal display. The quality inspector enters the factory material management system through the link and identifies the shape, size and weight of the scrap steel through automatic operation of the system.

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