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我厂过磷酸钙装置改造中,磷矿粉加料由手动操作改为自动连续定量加料控制。这就需要有一套自动控制仪表,但其中DK-IB型控制器和ZC-IA型操作器还没着落,又面临资金不足,工期紧等问题,针对这一情况,笔者因地制宜将原来的JDIA型电磁调速电动机控制器(简称控制器)进行改进,使用效果良好,按期完成改造任务,并节省了自控仪表的开资。具体改进方法如下。如图1示,a.打开控制器外壳,将电
In our plant SSP plant transformation, phosphate rock powder feed by manual operation to automatically continuous quantitative feed control. This requires a set of automatic control instruments, but the DK-IB-type controller and ZC-IA-type operator has not landed, but also facing lack of funds, tight schedule and other issues, in view of this situation, I suit local conditions the original JDIA Electromagnetic speed control motor controller (referred to as the controller) to improve, the use of good results, the completion of transformation tasks on schedule, and save the self-control instrumentation capital. Specific improvements as follows. Shown in Figure 1, a. Open the controller housing, the electricity