广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
18期
10-12,31
,共4页
飞灰%冷态模拟装置%沉积%粒度分布
飛灰%冷態模擬裝置%沉積%粒度分佈
비회%랭태모의장치%침적%립도분포
fly ash%cold model unit%deposition%particle size distribution
针对Shell煤气化装置合成气冷却器段出现的积灰与堵灰现象，选取Shell煤气化飞灰（sH）与电厂飞灰（DH），利用Shell煤气化冷态模拟装置采集沉积于器壁的飞灰样品，并采用激光粒度分析仪进行粒度分布的研究。结果表明：DH飞灰粒度大于SH飞灰，喷射时间相同时，DH飞灰沉积质量大于SH飞灰，且DH飞灰与SH飞灰分别在沉积30s与60s时D50为最大值，其他喷射时间下D50相差不大，随着喷射时间的延长，DH飞灰颗粒（O巧Wn）与SH飞灰颗粒（0-1μm）含量不断增多，DH飞灰颗粒（38-75pm）百分含量与SH飞灰颗粒（38~75μm）百分含量分别在沉积30s与60s时为最大值。
針對Shell煤氣化裝置閤成氣冷卻器段齣現的積灰與堵灰現象，選取Shell煤氣化飛灰（sH）與電廠飛灰（DH），利用Shell煤氣化冷態模擬裝置採集沉積于器壁的飛灰樣品，併採用激光粒度分析儀進行粒度分佈的研究。結果錶明：DH飛灰粒度大于SH飛灰，噴射時間相同時，DH飛灰沉積質量大于SH飛灰，且DH飛灰與SH飛灰分彆在沉積30s與60s時D50為最大值，其他噴射時間下D50相差不大，隨著噴射時間的延長，DH飛灰顆粒（O巧Wn）與SH飛灰顆粒（0-1μm）含量不斷增多，DH飛灰顆粒（38-75pm）百分含量與SH飛灰顆粒（38~75μm）百分含量分彆在沉積30s與60s時為最大值。
침대Shell매기화장치합성기냉각기단출현적적회여도회현상，선취Shell매기화비회（sH）여전엄비회（DH），이용Shell매기화랭태모의장치채집침적우기벽적비회양품，병채용격광립도분석의진행립도분포적연구。결과표명：DH비회립도대우SH비회，분사시간상동시，DH비회침적질량대우SH비회，차DH비회여SH비회분별재침적30s여60s시D50위최대치，기타분사시간하D50상차불대，수착분사시간적연장，DH비회과립（O교Wn）여SH비회과립（0-1μm）함량불단증다，DH비회과립（38-75pm）백분함량여SH비회과립（38~75μm）백분함량분별재침적30s여60s시위최대치。
According to fly ash deposit and plugging at the synthetic gas cooling tower of the Shell coal gasification. Chose Shell coal gasification fly ash (SH) and power plant fly ash (DH).Shell Coal Gasification Cold Model Unit was applied to collect the fly ash samples deposit on the wall. And Laser Particle Size Analyzer was applied to study on particle size distribution. The study results showed that, DH fly ash particle size is greater than the SH fly ash. In the same spraying time, the deposition quality of DH fly ash is more than SH fly ash. The D50 of DH fly ash and SH fly ash is a maximum respectively in sedimentary 30 s and 60 s. In other spraying time, the D50 differ not quite. Along with the extension of spraying time,the percentage of DH fly ash particles (0-5 μm) and SH fly ash particles (0-1 μm) increased, and the percentage of DH fly ash particles (38-75 μm) and SH fly ash particles (38-75 pro) is a maximum respectively in sedimentary 30 s and 60 s.
