从像焦化塔那样的设备中除去石油焦。液压除焦用高速水流作为切削手段。
The removal of petroleum coke from equipment such as coking drums. Hydraulic decoking uses high-velocity water stream as the cutting means.
介绍了焦化塔底阀的结构特点，论述了焦化塔底阀使用过程中常见故障的处理方法。
Introducing the structural features of the bottom unheading valve and describing the troubleshooting method of the bottom unheading valve on the common troubles.
焦炭塔是延迟焦化装置中的关键设备之一，由于操作条件苛刻，使焦炭塔受到循环往复的热应力和内压的作用。
Coke tower is major equipment in delay-coking unit. but due to the severe service conditions, coke tower is loaded recling thermal stress and pressure.
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