连铸机二冷室蒸汽排放量计算及实践

为了研究连铸机二冷区蒸汽排气量,以国内某特钢厂3机3流不锈钢连铸机改造为背景,通过热量法和水量法对1Cr13钢种浇铸过程中二冷蒸汽量进行了计算,对蒸汽管道的走向进行了改进、并对风机的选型进行了验证。结果表明,现有蒸汽引风机功率偏小,通过更换蒸汽管道及风机,彻底解决了在连铸机浇铸作业过程中长期存在的蒸汽滞留、外溢等问题,对连铸机二冷室蒸汽排放治理具有一定的借鉴意义。

Calculation and practice of steam emission in secondary cooling chamber of continuous caster

Based on the reconstruction of three machines and three streams stainless steel continuous caster in a special steel plant in China, in order to study the steam exhaust in the secondary cooling zone of the continuous caster, the steam quantity in the secondary cooling zone of 1Cr13 steel was calculated by heat method and water method, and the direction of steam pipe was improved and the type selection of fan was verified. The results show that the power of the existing steam induced draft fan is relatively small, and the steam pipe is replaced.The runner and fan completely solve the long-term problems of steam retention and overflow in the casting process of continuous casting machine, which has certain reference significance for the treatment of steam emission in the secondary cooling chamber of continuous casting machine.