山西科技
山西科技
산서과기
Shanxi Science and Technology
2015年
5期
135-136,137
,共3页
选煤工艺%重介浅槽分选机%压滤机%燕龛选煤厂
選煤工藝%重介淺槽分選機%壓濾機%燕龕選煤廠
선매공예%중개천조분선궤%압려궤%연감선매엄
coal preparation technique%dense medium and shallow trough separator%press filter%Yankan Coal Cleaning Plant
根据燕龛选煤厂入选9号、15号煤层原煤高灰、低水、中硫、低发热量，末原煤（－13 mm）灰分偏低，发热量大于20929 kJ/kg等特性，进行了工艺比较，确定其选煤工艺为：200 mm～13 mm级块煤采用重介浅槽排矸；13 mm～0 mm级末煤不分选；3 mm～0.2 mm级粗煤泥采用弧形筛＋煤泥离心机回收；0.2 mm～0 mm级细煤泥采用压滤机回收。
根據燕龕選煤廠入選9號、15號煤層原煤高灰、低水、中硫、低髮熱量，末原煤（－13 mm）灰分偏低，髮熱量大于20929 kJ/kg等特性，進行瞭工藝比較，確定其選煤工藝為：200 mm～13 mm級塊煤採用重介淺槽排矸；13 mm～0 mm級末煤不分選；3 mm～0.2 mm級粗煤泥採用弧形篩＋煤泥離心機迴收；0.2 mm～0 mm級細煤泥採用壓濾機迴收。
근거연감선매엄입선9호、15호매층원매고회、저수、중류、저발열량，말원매（－13 mm）회분편저，발열량대우20929 kJ/kg등특성，진행료공예비교，학정기선매공예위：200 mm～13 mm급괴매채용중개천조배안；13 mm～0 mm급말매불분선；3 mm～0.2 mm급조매니채용호형사＋매니리심궤회수；0.2 mm～0 mm급세매니채용압려궤회수。
ABSTRACT:According to the coal quality features of high ash, medium sulfur, low moisture and low calorific value of raw coal, as well as lower ash content and high calorific value(>20 929 kJ/kg)of pulverized raw coal(-13 mm) from No.9 and No.15 coal beds of Yankan Coal Cleaning Plant, this paper carries out a processes comparison, and determines the coal preparation process, that is the 200 mm~13 mm level lump coal is separated by dense medium and shallow trough separator for gangue removing, 13 mm~0 mm level pulverized coal is not separated, 3 mm~0.2 mm level coarse coal slime is recoveried by using the arc sieve+centrifuge, the 0.2 mm~0 mm level fine coal slime is recoveried by using press filter.
