Particle motion characteristics of atomization process in impinging entrained-flow gasifier

被引：0

作者：

Cheng C. ^{[1
]}

Xue Z. ^{[1
]}

Guo Q. ^{[1
]}

Gong Y. ^{[1
]}

Yu G. ^{[1
]}

机构：

[1] Institute of Clean Coal Technology, East China University of Science and Technology, Shanghai

来源：

Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 12期

关键词：

Atomization process; Impinging entrained-flow gasifier; Particle trajectory; Statistical analysis; Visualization technology;

D O I：

10.11949/0438-1157.20190721

中图分类号：

学科分类号：

摘要：

Based on the laboratory scale of the impinging entrained-flow bed gasifier, the coal gas slurry was used as the raw material for gasification experiments. The particle information in images was identified by image post-processing algorithm and the particle tracking algorithm was used to calculate the particle trajectory. The particle size, particle velocity and particle motion angle were analyzed by statistical method. The results show that the averaged particle size of the jet flow region near the burner tip concentrates at 325-375 μm, which is larger than the original coal particles. The velocity of most particles concentrates at 1-2 m•s-1 and almost keeps constant during the movement. The motion angles of most particles do not change with time, which means the trajectories of most particles show rectilinear motion. The distribution of all particle trajectories shows a fan-shaped ray starting from the burner tip. © All Right Reserved.

引用

页码：4536 / 4545

页数：9

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