Steel ladle bottom argon blowing gas flow control device and control method
A technology of argon flow and bottom blowing argon, which is applied in the direction of flow control, flow control using electrical devices, non-electric variable control, etc., can solve the problem that the flow rate of argon gas flow at the bottom of the ladle cannot be automatically and accurately controlled, and reduce manual labor. Strength, improved molten steel quality, and improved reliability
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[0020] Embodiment 1, the method for controlling the flow of argon blowing at the bottom of a ladle by using the above-mentioned device, includes the following steps:
[0021] 1) The image processing and control center server 4 has a database including the argon flow valve opening, the argon flow range, the argon blowing intensity at the bottom of the ladle and the exposed ratio of molten steel database. The image processing and control center server has a ladle The standard for the ratio of the exposed surface of molten steel to the molten steel surface corresponding to the strong or weak stirring of argon blowing: strong stirring means that the ratio of the exposed area of molten steel to the molten steel surface is 26-75%; weak stirring means that the ratio of the exposed area of molten steel to the molten steel surface is 5-25%; Blowing means that the exposed area of molten steel accounts for more than 75% of the molten steel surface, and no blows are allowed during manip...
Example Embodiment
[0027] Embodiment 2, the method for controlling the flow of argon blowing at the bottom of the ladle by using the above-mentioned device, includes the following steps:
[0028] 1) The image processing and control center server 4 has a database including the argon flow valve opening, the argon flow range, the argon blowing intensity at the bottom of the ladle and the exposed ratio of molten steel database. The image processing and control center server has a ladle The standard for the ratio of the exposed surface of molten steel to the molten steel surface corresponding to the strong or weak stirring of argon blowing: strong stirring means that the ratio of the exposed area of molten steel to the molten steel surface is 26-75%; weak stirring means that the ratio of the exposed area of molten steel to the molten steel surface is 5-25%; Blowing means that the exposed area of molten steel accounts for more than 75% of the molten steel surface, and no blows are allowed during man...
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