Using the central control system PLC, intelligent temperature controller and pressure gauge to replace the three pen recorder to realize the closed loop circulation and record of outer temperature.
采用中央控制PLC、智能温控器及压力仪表等替代原进口三针记录仪，实现外温的闭环控制和记录；
BF project contains five parts: soft water preparation system, the closed loop soft water system, the clean circulation water system, throat water sprinkler system, BF gas cleaning system.
高炉水处理系统中包括软水制备系统、密闭循环系统、净环水系统、炉喉洒水系统、煤气洗涤系统五个部分。
Raymond mill is a closed loop air flow system, and circulation in the flow of positive and negative state.
雷蒙磨粉机的气流系统是密闭循环的，并且是在正负状态下循环流动的。
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