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1·Coke drum is the key equipment of the delayed coking device.

焦炭塔是延迟焦化装置的关键设备。

2·The importance of thermal insulation for coke drum was discussed.

论述了焦炭塔保温的重要性。

3·From evaluation, it is believed that residual life of coke drum is decided by the result of fatigue test.

评估结果认为，焦炭塔的剩余使用寿命是由疲劳试验结果决定的。

4·Therefore, we come to the conclusion that the deformation of coke drum is the result of progressive plastic deformation.

由此可断定焦炭塔的鼓胀变形是渐次塑性变形积累的结果。

5·The application situation of new type suspender shape thermal insulation technology on coke drum in delayed coking unit was recommended.

介绍了新型背带式保温技术在延迟焦化装置焦炭塔上的应用情况。

6·Stress on the coke drum and the main cause of fatigue rupture creation has been analyzed and it is held that un-connected structure of the skirt and coke drum is the main cause.

分析了焦炭塔的受力情况和产生疲劳破坏的主要原因，认为焦炭塔下部裙座和筒体结构不连续是主要原因。