Leak detection device in continuous casting process
A detection device and casting process technology, which is applied in the field of leakage detection device whether it occurs or not, can solve problems such as molten steel leakage, operational obstacles, solidification hysteresis leakage, etc., and achieve the effect of preventing losses
Inactive Publication Date: 2017-06-13
POHANG IRON & STEEL CO LTD
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Problems solved by technology
However, if the solidified shell is attached to the wall of the mold and separated from the lower solidified shell, the molten steel leaks out to the lower part of the mold.
Moreover, when the solidified slab shell is not in contact with the mold, especially at the corners, and thus fails to thicken and still comes out of the mold in a thinner state, it cannot resist the hydrostatic pressure, that is, the pressure of the molten steel pressed from top to bottom. coagulation hysteresis leak
If the above-mentioned leakage occurs, a large amount of molten steel will flow to the periphery of the continuous casting machine, which will bring great obstacles to the operation and cause great losses.
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[0020] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the process of the present invention, when it is judged that the detailed description of related known functions or configurations may obscure the gist of the present invention, the detailed description will be omitted.
[0021] figure 1 is a diagram illustrating a leak detection device 100 according to a preferred embodiment of the present invention. Such as figure 1 As shown, the leakage detection device 100 according to a preferred embodiment of the present invention includes an imaging unit 101, an image processing unit 102, an image display unit 103, and a control unit 104 to detect in real time the surface of the casting plate 20 drawn from the casting mold 10, according to The change of the luminance value of the cast plate 20 is used to detect the occurrence of leaks.
[0022] The imaging unit 101 is provided adjac...
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The invention discloses a leakage detection device, which is characterized in that it comprises: a photographing unit that photographs the surface of a cast plate drawn from a casting mold in real time and generates an image signal from the photographed image; converts the above image signal into gray Scale image, and calculate the image processing part of the luminance value of the above-mentioned casting plate from the above-mentioned gray scale image; Output the image display part of the above-mentioned gray scale image; And receive the luminance value of the above-mentioned casting plate to observe the above-mentioned luminance value The control unit of the casting process is interrupted when it is judged that the change of the luminance value is above a predetermined value. The leakage detection device and method described above can detect the occurrence of leakage in real time and confirm the occurrence of leakage through images, so as to prevent losses caused by leakage.
Description
technical field [0001] The invention relates to a leak detection device in a continuous casting process, in particular to a leak detection device capable of detecting the occurrence of a leak that varies with the brightness value of a casting plate. Background technique [0002] Generally speaking, the continuous casting process is realized by a continuous casting device. The molten steel flows into the mold from the tundish through the dipping nozzle, and the solidified shell is formed by the cooling water flowing inside the mold to start to solidify. [0003] The mold for continuous casting consists of four faces. Here, two sides are long and the other two sides are short, and the inner space has a cuboid shape with open upper and lower parts. The material of the mold is copper having excellent thermal conductivity, and cooling water is supplied to the inside of the mold to cool the mold. [0004] The length of the mold is usually about 1000 mm, and the molten steel is ...
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IPC IPC(8): B22D11/20
Inventor 崔刚赫朴钟学姜顺中柳承铉
Owner POHANG IRON & STEEL CO LTD