专利名称：PREVENTING METHOD FOR VALVE VIBRATION OF HOT STOVE
申请号：JP309578
生活活动目标申请日：19780113
虾火锅的做法公开号：JPS54107531U
公共卫生硕士>如何榨果汁
公开日：
脱单攻略
浓郁的意思
19790728
专利内容由知识产权出版社提供
北京跑步
一个山一个归摘要：PURPOSE:To prevent vibration of hot blast valves and elongate their rvice life by opening blow valves immediately after closing the hot blast valves to maintain the internal press. of each hot stove for a blast furnace at atmospheric press. When a blast process in finished and shifted to a burning process in each hot stove. CONSTITUTION:Hot blast is fed to blast furnace 7 alternately from four hot stoves 1 while staggering the time. When a blast process is shifted to a burning process in one hot stove, blow valve 13 is opened immediately after closing hot blast valve 5 and isolating it from hot blast pipe 6. Pressurized air in stove 1 is allowed to flow out to flue pipe 15 from valve 13 to make the press. inside stove 1 almost equal to atmospheric press., and valve 13 is clod to finish the blast process. Hot blast press. from the next step hot stove acts on valve body 17 of valve 5. However, the press. inside the stove is equal to the atmospheric press., so body 17 is press. bonded to valve at 18 on the stove side owing to the press. difference, restrained, and prevented from vibrating. Accordingly, damage of the hot balst valves due to vibration is avoided, and their rvice life can be elongated.
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