Inspection method of scrap steel briquettes

Abstract

The invention discloses a scrap steel briquette inspection method, which comprises the following steps: step 1, designing a sampling coordinate scheme, and determining the orientation; step 2, determining the specification of the number of layers of the to-be-detected scrap steel briquetting vehicle; 3, according to the briquetting sampling scheme, a position extraction program is developed on the scrap steel quality inspection APP; step 4, during inspection, an inspector counts the number of layers, rows and columns of the briquettes loaded on the scrap steel vehicle to be inspected; and step 5, an inspector inputs the number of layers, rows and columns of the to-be-inspected briquettes on a position extraction interface of the scrap steel quality inspection APP and clicks the position extraction, and the APP randomly generates a position 1 and a position 2. The invention relates to the field of scrap steel briquette detection, in particular to a scrap steel briquette detection method.

Description

Technical Field

[0001] The invention relates to the field of scrap steel briquetting detection, and in particular to a method for detecting scrap steel briquetting. Background Art

[0002] At present, domestic steel enterprises mainly conduct sampling inspections on scrap steel briquettes by manual sampling and computer sampling. Manual sampling means that the inspectors randomly select 2 briquettes for unpacking and internal inspection after visual inspection on site. Computer sampling means that the computer program randomly selects a location within a limited and fixed sampling location every 2 hours. The inspectors inform the grabbers of the location of the area selected by the computer, and the grabbers randomly select a piece within the area.

[0003] In actual operations, manual sampling and computer sampling are inevitably interfered by external factors, and the fairness and randomness of the sampling inspection cannot be guaranteed. Therefore, in order to solve the loopholes in the existing inspection methods, a more scientific and reasonable sampling inspection method is needed to accurately and objectively inspect the internal quality of scrap steel briquettes. Summary of the invention

[0004] The technical problem to be solved by the present invention is that in manual sampling and computer sampling, in actual operations, inspectors are inevitably interfered by external factors, and the fairness and randomness of the sampling inspection cannot be guaranteed.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows: The present invention is a method for inspecting scrap steel briquettes, comprising the following steps: Step 1: Design a sampling coordinate plan and determine the orientation; Step 2: confirm the number of layers of scrap steel briquettes to be inspected; Step 3: Based on the above briquetting sampling plan, develop a "position extraction" program on the scrap steel quality inspection APP; Step 4: During the inspection, the inspector counts the number of layers, rows and columns of briquettes loaded on the scrap steel vehicle to be inspected; Step 5: The inspector enters the layer, row, and column number of the block to be inspected in the "Position Extraction" interface of the scrap steel quality inspection APP, clicks "Position Extraction", and the APP randomly generates position 1 and position 2; Step 6: For vehicles with irregular loading, the inspector inputs the maximum value of the layer, row, and column of the vehicle for sampling. If the sampling position is actually empty, sampling can be performed at the nearest sampling position. Step 7: If the inspector visually determines that the apparent quality of the briquette is suspicious or the APP sampling position is not representative enough, 1-2 more pieces can be sampled according to the actual situation; Step 8: The inspector uses the intercom to instruct the steel grabber to grab the sample at the corresponding coordinate position and place it on the unpacking machine nearby to unpack and inspect the internal quality of the briquette; Step 9: The inspector determines the grade of the briquettes according to the internal quality of the briquettes and the appearance quality of the briquettes of the whole vehicle, and enters the briquettes into the scrap steel quality inspection APP according to the briquettes classification standards; Step 10: The logistics dispatch room and the steel mill make a use plan for the briquetting on the vehicle according to the briquetting grade entered by the inspector; Step 11. Surveillance cameras are installed in the entire sampling area and unpacking area to provide 24-hour monitoring without blind spots. Management personnel can view or replay surveillance videos in real time to supervise the standardization of sampling and unpacking.

[0006] Furthermore, the method for determining the orientation in step one is that the inspector stands on the inspection platform facing the carriage, with the side of the carriage close to the inspection platform being the right and the other side of the carriage being the left; the inspector's right hand side is the front of the carriage and the left hand side is the rear of the carriage.

[0007] Furthermore, the provisions of step 2 are to count the number of layers of press blocks from bottom to top, for example, the first layer is the lowest layer of the carriage; the number of rows is to count the number of rows of press blocks from the front to the back of the carriage; the number of columns is to count the number of columns of press blocks from left to right.

[0008] The beneficial effects achieved by the present invention using the above structure are as follows: 1. The present invention designs a scientific and reasonable sampling plan and develops a corresponding APP sampling program. According to the loading conditions of the vehicles to be inspected, the layer, column, and row number are input in the sampling program interface, and the "sampling position" is generated by clicking to achieve the purpose of random and accurate point distribution for each vehicle. Compared with the original method, the sampling position can be generated more randomly and accurately.

[0009] 2. The present invention reduces resource consumption, improves sample representativeness, inspection timeliness, and overall inspection accuracy through technical improvements. DETAILED DESCRIPTION Example 1

[0010] The present invention is a method for inspecting scrap steel briquettes, comprising the following steps: Step 1: Design the sampling coordinate plan and determine the orientation: the inspector stands on the inspection platform facing the carriage, the side of the carriage close to the inspection platform is the right, and the other side of the carriage is the left; the inspector’s right hand side is the front of the carriage, and the left hand side is the back of the carriage; Step 2: The number of layers of the scrap steel briquette vehicle to be inspected is stipulated as follows: the number of layers of briquette is counted from bottom to top, for example, the first layer is the lowest layer of the vehicle; the number of rows is stipulated as follows: the number of rows of briquette is counted from the front to the back of the vehicle; the number of columns is stipulated as follows: the number of columns of briquette is counted from left to right; Step 3: Based on the above briquetting sampling plan, develop a "position extraction" program on the scrap steel quality inspection APP; Step 4: During the inspection, the inspector counts the number of layers, rows and columns of briquettes loaded on the scrap steel vehicle to be inspected; Step 5: The inspector enters the number of layers, rows, and columns of the block to be inspected in the "Position Extraction" interface of the scrap steel quality inspection APP, clicks "Position Extraction", and the APP randomly generates position 1 (X layer, X row, X column) and position 2 (X layer, X row, X column); Step 6: For vehicles with irregular loading, the inspector inputs the maximum value of the layer, row, and column of the vehicle for sampling. If the sampling position is actually empty (no block), sampling can be performed at the nearest sampling position; Step 7: If the inspector visually determines that the apparent quality of the briquette is suspicious or the APP sampling position is not representative enough, one more piece can be sampled according to the actual situation; Step 8: The inspector uses the intercom to instruct the steel grabber to grab the sample at the corresponding coordinate position and place it on the unpacking machine nearby to unpack and inspect the internal quality of the briquette; Step 9: The inspector determines the grade of the briquettes according to the internal quality of the briquettes and the appearance quality of the briquettes of the whole vehicle, and enters the briquettes into the scrap steel quality inspection APP according to the briquettes classification standards; Step 10: The logistics dispatch room and the steel mill make a use plan for the briquetting on the vehicle according to the briquetting grade entered by the inspector; Step 11. Surveillance cameras are installed in the entire sampling area and unpacking area to provide 24-hour monitoring without blind spots. Management personnel can view or replay surveillance videos in real time to supervise the standardization of sampling and unpacking. Example 2

[0011] The present invention is a method for inspecting scrap steel briquettes, comprising the following steps: Step 1: Design the sampling coordinate plan and determine the orientation: the inspector stands on the inspection platform facing the carriage, the side of the carriage close to the inspection platform is the right, and the other side of the carriage is the left; the inspector’s right hand side is the front of the carriage, and the left hand side is the back of the carriage; Step 2: The number of layers of the scrap steel briquette vehicle to be inspected is stipulated as follows: the number of layers of briquette is counted from bottom to top, for example, the first layer is the lowest layer of the vehicle; the number of rows is stipulated as follows: the number of rows of briquette is counted from the front to the back of the vehicle; the number of columns is stipulated as follows: the number of columns of briquette is counted from left to right; Step 3: Based on the above briquetting sampling plan, develop a "position extraction" program on the scrap steel quality inspection APP; Step 4: During the inspection, the inspector counts the number of layers, rows and columns of briquettes loaded on the scrap steel vehicle to be inspected; Step 5: The inspector enters the number of layers, rows, and columns of the block to be inspected in the "Position Extraction" interface of the scrap steel quality inspection APP, clicks "Position Extraction", and the APP randomly generates position 1 (X layer, X row, X column) and position 2 (X layer, X row, X column); Step 6: For vehicles with irregular loading, the inspector inputs the maximum value of the layer, row, and column of the vehicle for sampling. If the sampling position is actually empty (no block), sampling can be performed at the nearest sampling position; Step 7: If the inspector visually determines that the apparent quality of the briquette is suspicious or the APP sampling position is not representative enough, two more samples may be taken according to the actual situation; Step 8: The inspector uses the intercom to instruct the steel grabber to grab the sample at the corresponding coordinate position and place it on the unpacking machine nearby to unpack and inspect the internal quality of the briquette; Step 9: The inspector determines the grade of the briquettes according to the internal quality of the briquettes and the appearance quality of the briquettes of the whole vehicle, and enters the briquettes into the scrap steel quality inspection APP according to the briquettes classification standards; Step 10: The logistics dispatch room and the steel mill make a use plan for the briquetting on the vehicle according to the briquetting grade entered by the inspector; Step 11. Surveillance cameras are installed in the entire sampling area and unpacking area to provide 24-hour monitoring without blind spots. Management personnel can view or replay surveillance videos in real time to supervise the standardization of sampling and unpacking.

[0012] By designing a scientific and reasonable sampling plan and developing a corresponding APP sampling program, the sampling program can generate random and accurate sampling locations for each vehicle by inputting the number of layers, columns, and rows in the sampling program interface according to the loading conditions of the vehicles to be inspected. Compared with the original method, it can generate sampling locations more randomly and accurately.

[0013] The inspection results of the present invention are compared with those of manual sampling and computer sampling, and the data are shown in Table 1:

[0014] As can be seen from Table 1, manual sampling has no constraints on personnel and relies entirely on the subjective consciousness of the inspectors, which poses a greater risk of intentional human operation; the drawing frequency of computer sampling is 2 hours / time, and random drawing of every vehicle is not achieved. Although a simple sampling point distribution plan has been formulated, it is not accurate to the coordinates, and there is also a risk of intentional human operation; the present invention achieves random drawing of every vehicle through the flexibility of the mobile phone APP, and the drawing coordinates are accurate to the point, eliminating the risk of intentional human operation.

[0015] Usage effect analysis

[0016] Five batches of APP sampling input and output information are randomly selected, as shown in Table 2:

[0017] As can be seen from Table 2, the sampling method of the present invention accurately arranges points according to the loading conditions of the vehicles to be inspected, and the sampling positions are highly random. The actual use of a steel company has proved that the present invention is feasible, and compared with the original method, it can generate sampling positions more randomly and accurately. However, in actual use, it is also found that the present invention needs to calculate the number of rows, layers, and columns of the inspection vehicles, resulting in the disadvantage of extending the inspection time by about 1 minute per vehicle. Later, we plan to set high-definition cameras on the roof and sides of the vehicle, and set display screens in the inspector's working area to facilitate the inspection personnel to count and reduce the inspection time.

[0018] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for inspecting scrap steel briquettes, characterized in that: The steps include: Step 1: Design a sampling coordinate plan and determine the orientation; Step 2: confirm the number of layers of scrap steel briquettes to be inspected; Step 3: Develop a "position extraction" program on the scrap steel quality inspection app based on the above briquetting sampling plan; Step 4: During the inspection, the inspector counts the number of layers, rows and columns of briquettes loaded on the scrap steel vehicle to be inspected; Step 5: The inspector enters the layer, row, and column number of the block to be inspected in the "Position Extraction" interface of the scrap steel quality inspection APP, clicks "Position Extraction", and the APP randomly generates position 1 and position 2; Step 6: For vehicles with irregular loading, the inspector inputs the maximum value of the layer, row, and column of the vehicle for sampling. If the sampling position is actually empty, sampling can be performed at the nearest sampling position. Step 7: If the inspector visually determines that the apparent quality of the briquette is suspicious or the APP sampling position is not representative enough, 1-2 more pieces can be sampled according to the actual situation; Step 8: The inspector uses the intercom to instruct the steel grabber to grab the sample at the corresponding coordinate position and place it on the unpacking machine nearby to unpack and inspect the internal quality of the briquette; Step 9: The inspector determines the grade of the briquettes according to the internal quality of the briquettes and the appearance quality of the briquettes of the whole vehicle, and enters the briquettes into the scrap steel quality inspection APP according to the briquettes classification standards; Step 10: The logistics dispatch room and the steel mill make a use plan for the briquetting on the vehicle according to the briquetting grade entered by the inspector; Step 11. Surveillance cameras are installed in the entire sampling area and unpacking area to provide 24-hour monitoring without blind spots. Management personnel can view or replay surveillance videos in real time to supervise the standardization of sampling and unpacking.

2. The method for inspecting scrap steel briquettes according to claim 1, characterized in that: The method for determining the orientation in step 1 is that the inspector stands on the inspection platform facing the carriage, with the side of the carriage close to the inspection platform being the right and the other side of the carriage being the left; the inspector's right hand side is the front of the carriage and the left hand side is the rear of the carriage.

3. The method for inspecting scrap steel briquettes according to claim 1, characterized in that: The provisions of step 2 are to count the number of layers of press blocks from bottom to top, for example, the first layer is the lowest layer of the carriage; the number of rows is to count the number of rows of press blocks from the front to the back of the carriage; the number of columns is to count the number of columns of press blocks from left to right.

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