FRAGMENTATION OF LARGE COAL PARTICLES IN A DROP-TUBE FURNACE

被引：20
|
作者：
DACOMBE, PJ
HAMPARTSOUMIAN, E
POURKASHANIAN, M
机构：
[1] Department of Fuel and Energy, The University of Leeds, Leeds
来源：
FUEL | 1994年 / 73卷 / 08期
关键词：
COAL PARTICLES; FRAGMENTATION; DROP-TUBE FURNACE;
D O I：
10.1016/0016-2361(94)90315-8
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The fragmentation of large coal particles (1 6 mm) was studied by introducing them singly into an isothermal drop-tube reactor maintained at 1273-1383 K. Fragmentation due to thermal shock and subsequent cracking during the devolatilization and char combustion stages was observed for all particle sizes. The extent of fragmentation increased with increasing initial particle size and temperature. Particle rotation as a result of ejection of volatiles was also observed, with a frequency of 200-1300 Hz depending on particle size.
引用
收藏
页码：1365 / 1367
页数：3
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