Based on reconstruction of low frequency reduction furnace 'cooling water circular system, arrived at the effect of water saving and gained economic benefits.

通过对工频炉冷却水循环系统的改造，达到了节水的效果，取得了一定的经济效益。

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The circular cooling water tube of BF is characterized by the large system, wide-diameter tube, long lines and complicated layout.

高炉循环冷却水管道系统大，管径粗，管线长，布置错综复杂。

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To introduce digital logic program designing method of microminiature PLC application to circular cooling water system.

介绍超小型可编程控制器(plc)在循环冷却水系统应用中数字逻辑的程序设计方法。

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