我矿箕斗井深280米,过去经常发生井框破损、罐道脱落等现象。在这种情况下,由于没有可靠的安全装置,无法检查,往往需要停产进行检修。为此,仅1976年就影响生产达400多小时。在英明领袖华主席抓纲治国战略决策的指引下,我矿四工区组成了以工人为主体的三结合小组,开展试验研究工作。经过加多次试验改进,初步寻求到一种行之有效的拆卸式安全作业台。 I pit mine 280 meters deep well, in the past often damage casing, shed off the road and so on. In this case, it is often necessary to stop production for overhauling because there is no reliable safety device and can not be inspected. For this reason, production hit more than 400 hours in 1976 alone. Guided by the wise leadership of Chairman Hua to guide the strategic decision of the state governing our country, the four mines in our mine formed a three-pronged working group with workers as the main body and carried out experimental research. After several tests to improve, initially to find an effective demolition safety workbench.