Coke drums in many operating plants experience foundation bolt failures. Industry does not have a consistent approach for the design of foundation bolts for coke drums. Older drums with diameters of up to 30 ft can be found with 1-in. 0 x 24 bolts made from ASTM A307 Grade B steel. A recent trend is to design coke drums of 30-ft diameter with as many as 48 anchor bolts of 2 in. 0. Some drums experience periodic vibrations that worsen if the anchor bolts become loose or broken. A review is provided here of coke drum bolt failures, their consequences and potential corrections.
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机译：许多运营工厂的焦炭鼓都经历了地脚螺栓故障。工业上对于焦炭鼓的基础螺栓的设计没有一致的方法。 1英寸厚的旧滚筒直径最大为30英尺。 0 x 24螺栓，由ASTM A307 B级钢制成。最近的趋势是设计直径为30英尺的焦炭鼓，其中最多带有2个in。0的48个地脚螺栓。一些地脚鼓会经受周期性的振动，如果地脚螺栓变松或折断，振动会加剧。此处提供了对焦炭鼓螺栓故障，其后果和可能的更正的回顾。
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