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2002年6月5日,某厂1260m~3高炉炉顶气密箱着火,喷出的火焰将炉顶电气设备全部烧坏,休风38小时45分。复风后,上料收不到讯号,经检查发现盛装放射性同位素的铝罐部分熔化,放射源产生位移,一米处强度达7000毫居里。由于放射源在抢修平台上部的平台上,放射源失去屏蔽后,检修平台已成为一个辐射监测区,上百人参加了这次事故的抢修,在检测区滞留时间如下:
June 5, 2002, a factory 1260m ~ 3 blast furnace top airtight box fire, the flame will be discharged all the top electrical equipment burn out, rest for 48 hours and 45 minutes. After returning to the wind, the feed did not receive the signal. After inspection, it was found that the aluminum can containing the radioisotope partially melted and the radioactive source was displaced at a strength of 7000 millicuries at one meter. Since the radioactive sources were on the platform of the upper part of the repair platform and the radioactive sources lost their shielding, the inspection platform had become a radiation monitoring area. Hundreds of people participated in the repair of this accident. The retention time in the inspection area was as follows: