Experimental study on the effects of blast-cap configurations and charge patterns on coke descending in CDQ cooling shaft
- University of Science & Technology, Beijing (China). School of Mechanical Engineering
The coke descending behavior in a CDQ cooling shaft is studied experimentally by means of a tracing method with a digital camera. For three different blast-caps, the law of coke flow is studied under five conditions of coke charge. The experimental results show that, for the sake of the uniformity of the coke burden descending, a blast-cap with elliptical cross-section is a better choice than that with circular cross-section regardless of high or low placement. A coke charge pattern with a flat top burden surface is preferable to that with peak-valley surface, a double-peak superior to a one-peak. Trajectory and average velocity distribution of coke behavior depend weakly on whether the coke is continuously fed or not as the discharging began. The blast-caps have local effects on the descending coke and hardly affect whether the cokes flow smoothly or not in the case of coke burden with enough depth.
- OSTI ID:
- 21240356
- Journal Information:
- Heat Transfer - Asian Research, Vol. 37, Issue 6; ISSN 1099-2871
- Country of Publication:
- United States
- Language:
- English
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