In recent years, the speed of rolling has been improved because of the technical trend of no-twist rolling, and the requirement of quick-speed feeding facility on cooling-bed has been put forward.
近年来，由于轧钢工艺趋向于采用无扭轧制等先进技术，使轧制速度迅速提高，对冷床高速上料装置提出了更高的要求。
The results showed that adding 5% dose of fly ash when feeding wastewater into the filter bed, wastewater treatment capability of facility can be improved, and the operating cost can reduce also.
结果表明，在废水进滤床前，加入5 %的粉煤灰可提高设施的废水处理能力，并且可降低运行费用。
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