Device and method for detecting metallic materials in carriage of slag car of steel mill

Abstract

The invention discloses a device and a method for detecting metallic materials in a carriage of a slag car in a steel mill, and relates to the technical field of metal detection. The detection assembly comprises an eddy current detection probe arranged on the mounting stand column and a detection analysis device used for receiving detection data transmitted by the eddy current detection probe and analyzing the detection data. The detection assembly integrated with the eddy current detection probe is installed on the gate sentry, the detection assembly is driven by the lifting assembly and the rotating assembly to conduct movement and start-stop control, when the detection assembly is started, mixing of ferromagnetic materials in a compartment can be detected through the eddy current detection principle, and the blank that a cargo carrying vehicle cannot be detected in production safety inspection is filled up.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal detection, in particular to a device and method for detecting metallic materials in a carriage of a slag truck in a steel plant. BACKGROUND

[0002] In the field of metal manufacturing and processing, large-scale production units are equipped with checkpoints, and one of the responsibilities of the checkpoints is to inspect outgoing vehicles, especially large transport vehicles carrying goods, to prevent the loss of property caused by taking out products from the factory.

[0003] Currently, visual inspection by human is used in actual operation. When the vehicle box has already loaded materials such as slag, sand, and household garbage, it is difficult for humans to find metallic products hidden in the vehicle. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a device and method for detecting metallic materials in a carriage of a slag truck in a steel plant.

[0005] To solve the above technical problems, the technical solutions of the present application are as follows: A device for detecting metallic materials in a carriage of a slag truck in a steel plant, comprising: a mounting column fixedly arranged at a checkpoint; a detection assembly comprising an eddy current detection probe arranged on the mounting column and a detection analysis device for receiving and analyzing detection data transmitted by the eddy current detection probe.

[0006] As a preferred solution of the device for detecting metallic materials in a carriage of a slag truck in a steel plant, the device further comprises a lifting assembly. The mounting column is fixedly provided with a lifting rail extending in the vertical direction, the lifting assembly comprises a lifting seat slidingly arranged on the lifting rail and a lifting drive device for driving the lifting seat to lift along the lifting rail, and the detection assembly is arranged on the lifting seat.

[0007] As a preferred solution of the device for detecting metallic materials in a carriage of a slag truck in a steel plant, the device further comprises a rotating assembly, the rotating assembly comprises a rotating drive device fixedly installed on the lifting seat and a rotating seat drivingly connected with the rotating drive device, and the detection assembly is fixedly arranged on the rotating seat.

[0008] The present application also provides a method for detecting metallic materials in a carriage of a slag truck in a steel plant, comprising: controlling the detection assembly to move to a predetermined height; controlling the detection assembly to operate when the vehicle to be detected moves to the detection position to detect whether there is metallic material in the carriage of the vehicle to be detected.

[0009] As a preferred scheme of the method for detecting metallic materials in a vehicle compartment of a steel plant slag truck, wherein: when the vehicle to be detected moves to the detection position, the detection assembly is controlled to operate, and after detecting whether there is metallic material in the vehicle compartment of the vehicle to be detected, the method further comprises: When it is detected that there is metallic material in the vehicle compartment of the vehicle to be detected, the mass of the metallic material in the vehicle compartment is detected and estimated.

[0010] As a preferred scheme of the method for detecting metallic materials in a vehicle compartment of a steel plant slag truck, wherein: the detection and estimation of the mass of the metallic material in the vehicle compartment comprises: Recording the moving speed v of the vehicle to be detected and the time of the metallic material passing through the detection area of the detection assembly; Using a peak holding circuit to capture the maximum value V of the induced voltage p , and obtaining the duration t of the maximum value V p ; Detecting and estimating the mass of the metallic material in the vehicle compartment by a mass calculation formula: f * 0.01 * (v * t) * p, wherein f is a fixed coefficient, and p is the density of steel.

[0011] As a preferred scheme of the method for detecting metallic materials in a vehicle compartment of a steel plant slag truck, wherein: before detecting whether there is metallic material in the vehicle compartment of the vehicle to be detected, the method further comprises: Excluding the interference of the vehicle compartment plate of the vehicle to be detected on the detection of the metallic material.

[0012] As a preferred scheme of the method for detecting metallic materials in a vehicle compartment of a steel plant slag truck, wherein: the exclusion of the interference of the vehicle compartment plate of the vehicle to be detected on the detection of the metallic material comprises: Using a symmetrically arranged transmitting-receiving coil group to eliminate the signal of the vehicle compartment plate at a fixed position by common-mode rejection; Setting distance attenuation compensation to focus the detection assembly on the goods in the vehicle compartment of the vehicle to be detected.

[0013] The beneficial effects of the present application are: (1) The detection assembly integrated with the eddy current detection probe is installed at the gate, and the detection assembly is driven to move and start-stop control by the lifting assembly and the rotating assembly. When it is started, the mixed ferromagnetic material in the vehicle compartment can be detected by the principle of eddy current detection, which makes up for the blank in the production safety inspection that cannot detect the loaded vehicle.

[0014] (2) The present application combines the detection signal threshold and the detection time to comprehensively and intelligently learn and judge, and can estimate the volume and mass of the ferromagnetic material in the vehicle compartment to be detected.

[0015] (3) The present invention eliminates the interference of the vehicle body panel of the vehicle under test on the detection of metal materials by using differential coil array design and distance attenuation compensation, thus ensuring the accuracy of detection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the detection device for metallic materials inside the cargo compartment of a steel plant slag truck provided by the present invention; Figure 2 for Figure 1 The right view; The components include: 1. Installation column; 2. Detection component; 3. Vehicle to be inspected; 4. Lifting component; 5. Rotation component. Detailed Implementation

[0018] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of a detection device for metallic materials inside the cargo compartment of a steel plant slag truck provided in an embodiment of this application. The device includes a mounting column 1 and a detection component 2. When the vehicle 3 to be inspected moves to the detection position, the detection component 2 can detect whether there are metallic materials inside the cargo compartment of the vehicle 3.

[0020] Specifically, the mounting post 1 is fixedly installed at the gatehouse. A lifting assembly 4 is installed on the mounting post 1. The lifting assembly 4 includes a lifting slide rail fixedly mounted on the mounting post 1, extending along the length of the post, i.e., vertically. A lifting seat is slidably mounted on the lifting slide rail. The lifting assembly 4 also includes a lifting drive device for driving the lifting seat to move up and down along the lifting slide rail.

[0021] In this embodiment, the lifting drive device is fixedly mounted on the upper part of the mounting column 1. The lifting drive device is a drive electric cylinder.

[0022] A rotating assembly 5 is provided on the lifting base. The rotating assembly 5 includes a rotating drive device fixedly installed on the lifting base and a rotating base driven by the rotating drive device.

[0023] The detection assembly 2 is fixedly arranged on the rotating seat, so that the rotating assembly 5 can drive the detection assembly 2 to rotate in the horizontal plane. In this way, the detection area of the detection assembly 2 can be adjusted, and the detection assembly 2 can be rotated to one side of the road during maintenance and repair, thereby avoiding interference with passing vehicles during maintenance and repair of the detection assembly 2. Meanwhile, the rotating assembly 5 is driven to ascend and descend by the lifting assembly 4, so as to drive the detection assembly 2 to ascend and descend synchronously, thereby realizing the ascending and descending of the detection assembly 2, and enabling the detection assembly 2 to adjust the position based on different detection requirements.

[0024] The detection assembly 2 comprises an eddy current detection probe fixedly arranged on the rotating seat and a detection analysis device for receiving and analyzing the detection data transmitted by the eddy current detection probe. The metal material in the vehicle compartment can be detected and analyzed by the eddy current detection probe.

[0025] In addition, the application also provides a method for detecting the metal material in the vehicle compartment of a steel plant slag truck, which specifically comprises the following steps: Step S101: Control the detection assembly 2 to move to a preset height.

[0026] Specifically, the electrical control system is electrically connected with the lifting assembly 4, the rotating assembly 5 and the detection assembly 2, and remotely controls the operation of the lifting assembly 4, the rotating assembly 5 and the detection assembly 2, so that the detection assembly 2 moves to the preset height and the preset position.

[0027] Step S102: When the vehicle to be detected 3 moves to the detection position, control the detection assembly 2 to operate to detect whether there is metal material in the vehicle compartment of the vehicle to be detected 3.

[0028] Specifically, after the vehicle to be detected 3 moves to the detection position, the detection assembly 2 is controlled to detect the inside of the vehicle compartment of the vehicle to be detected 3 to determine whether there is metal material in the goods.

[0029] It should be noted that since the vehicle compartment plate of the vehicle to be detected 3 is made of metal material, the vehicle compartment plate needs to be avoided during detection to exclude the interference of the vehicle compartment plate of the vehicle to be detected 3 on the detection of the metal material, so as to ensure the accuracy of the detection.

[0030] In this embodiment, the method for excluding the interference of the vehicle compartment plate of the vehicle to be detected 3 on the detection of the metal material is as follows: Difference coil array design: symmetrically arranged transmitting-receiving coil groups are adopted to eliminate the vehicle compartment plate signal at a fixed position through common mode rejection; Distance attenuation compensation: through distance attenuation compensation, the relative signal contribution of the vehicle compartment plate can be greatly reduced, so that the system focuses more on the detection of the metal in the goods.

[0031] Step S103: When it is detected that there is metal material in the vehicle compartment of the vehicle to be detected 3, the quality of the metal material in the vehicle compartment is detected and estimated.

[0032] Specifically, when the metal material in the vehicle cabin 3 is detected, the mass of the metal material needs to be detected and estimated, and the specific method is as follows: Step S103a: record the moving speed v of the vehicle 3 to be detected and the time of the metal material passing through the detection area of the detection assembly 2; Step S103b: use the peak holding circuit to capture the maximum inductive voltage Vp, and obtain the duration t of the maximum voltage Vp; Step S103c: detect and estimate the mass of the metal material in the vehicle cabin through the mass calculation formula: f * 0.01 * (v * t) * p, wherein f is a fixed coefficient, and p is the density of steel.

[0033] Therefore, the technical scheme of the present application integrates the detection assembly 2 of the eddy current detection probe into the gate guard, and drives the detection assembly 2 to move and start-stop control through the lifting assembly 4 and the rotating assembly 5. When it is started, it can detect the mixing of ferromagnetic materials in the vehicle cabin through the principle of eddy current detection, which makes up for the blank of the production safety inspection which cannot detect the cargo vehicle.

[0034] In addition to the above embodiments, the present application can have other implementation manners; any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present application.

Claims

1. A device for detecting metallic material in a steel plant sludge truck bed, characterized by: Comprising: a mounting column (1) fixedly arranged at a gate; a detection assembly (2) comprising an eddy current detection probe arranged on the mounting column (1) and a detection analysis device for receiving and analyzing detection data transmitted by the eddy current detection probe.

2. The apparatus for detecting metallic material in a steel plant slag car of claim 1, wherein: Further comprising a lifting assembly (4); The mounting column (1) is fixedly provided with a lifting slide rail extending in the vertical direction, the lifting assembly (4) comprises a lifting seat slidingly arranged on the lifting slide rail and a lifting drive device for driving the lifting seat to lift along the lifting slide rail, and the detection assembly (2) is arranged on the lifting seat.

3. The apparatus for detecting metallic material in a steel plant sludge car compartment according to claim 2, characterized in that: Further comprising a rotating assembly (5), the rotating assembly (5) comprises a rotating drive device fixedly installed on the lifting seat and a rotating seat drivingly connected with the rotating drive device, and the detection assembly (2) is fixedly arranged on the rotating seat.

4. A method of detecting metallic material in a steel plant sludge truck bed, characterized by: Comprising: controlling the detection assembly (2) to move to a preset height; when the vehicle (3) to be detected moves to a detection position, controlling the detection assembly (2) to operate to detect whether there is metal material in the vehicle compartment of the vehicle (3) to be detected.

5. The method of claim 4, wherein: After the above-mentioned step, further comprising: when it is detected that there is metal material in the vehicle compartment of the vehicle (3) to be detected, detecting and estimating the quality of the metal material in the vehicle compartment.

6. The method of claim 5, wherein: The detection and estimation of the quality of the metal material in the vehicle compartment comprises: recording the moving speed v of the vehicle (3) to be detected and the time of the metal material passing through the detection area of the detection assembly (2); using a peak holding circuit to capture the maximum inductive voltage Vp and obtain the duration t of the maximum voltage Vp; detecting and estimating the quality of the metal material in the vehicle compartment by a quality calculation formula, the quality calculation formula is: f *0.01* (v*t) *ρ, wherein f is a fixed coefficient and ρ is the density of steel.

7. The method of claim 5, wherein the method further comprises: Before the above-mentioned step of detecting whether there is metal material in the vehicle compartment of the vehicle (3) to be detected, further comprising: eliminating the interference of the vehicle compartment plate of the vehicle (3) to be detected on the detection of the metal material.

8. The method of claim 7, wherein the method further comprises: The elimination of the interference of the vehicle compartment plate of the vehicle (3) to be detected on the detection of the metal material comprises: using a symmetrically arranged transmitting-receiving coil group to eliminate the vehicle compartment plate signal at a fixed position by common mode rejection; setting distance attenuation compensation to focus the detection assembly (2) on the goods in the vehicle compartment of the vehicle (3) to be detected.

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