Method for optimizing convectional heat exchange confident of cooling water in continuous casting secondary cooling zone
A convective heat transfer coefficient and optimization method technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of heat transfer lag, cumbersome process, and consumption, so as to reduce the influence of human factors and avoid cumbersome process, optimization and high efficiency
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[0066] Example
[0067] The arc-shaped slab continuous caster in a steel plant in China has a radius of 10.75m, a metallurgical length of 28.83m, and a mold length of 900mm. The second cooling section of the caster is divided into 8 areas, and each cooling area is away from the meniscus. The distance and length are shown in Table 1.
[0068] Table 1 The distance and length of each cooling zone from the meniscus
[0069]
[0070] In production, the casting machine is used to cast a certain steel with a cross-section of 2450mm×320mm, the liquid level is 800mm, the water volume of the wide and narrow sides of the mold are 5800L / min and 650L / min, respectively, and the temperature difference between the inlet and outlet of the mold is 4.9℃. The liquidus and solidus temperatures of the steel are 1514.4°C and 1453.3°C, respectively, and the casting superheat is 30°C. The chemical composition of the steel is shown in Table 2.
[0071] Table 2 Chemical composition of steel
[0072]
[0073] Un...
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