料钟行程开闭器是大型高炉上料系统的重要组成部份之一,它有四十多根线路,二十二个接点,控制着主卷扬上料,肩负着料钟、均压阀开闭和向炉内及沟下发送料钟工作的信号。三高炉行程开闭器发生故障如不及时处理,就有造成严重设备事故和停产事故的可能。党支部广泛动员群众,出主意,想办法,献计献策,大家提出不休风更换料钟开闭器。我们工人阶级有志气,有能力,一定能完成任务。于是提出三不(不休风、不减压、不低料线)更换开闭器方案,其具体作法如下: It is one of the most important parts of the large blast furnace feeding system. It has more than 40 lines and 22 contacts, controls the main winch to feed the material, shoulders the material bell, the pressure equalizing valve Open and close and send to the furnace and ditch work clock signal. Three blast furnace trip shut down failure if not handled in time, there are likely to cause serious equipment accidents and production downtime. Party branches mobilize the masses extensively, come up with ideas, think of ways, offer advice and suggestions, and everyone proposes to change the bell-switch. Our working class has ambition and ability and will surely accomplish its task. So put forward three not (no break, no decompression, not low material line) to replace the program, its specific practices are as follows: