CAJ | 학술논문

对高加载 MPS 磨煤机在磨辊磨损不同时期的磨煤机运行特性进行试验研究，分析了该类型磨煤机在不同磨辊磨损程度下主要运行参数的调节特性及影响规律，并对实际操作提出建议。结果表明：高加载 MPS 磨煤机在碾磨试验煤质下，磨辊磨损早、中、后期的风量特性、分离器挡板特性、加载力特性基本相同；磨辊磨损早期，石子煤排放量均处在较低的水平；磨损中期，高出力下的石子煤排放量比低出力下有所降低；磨损后期，石子煤量有所增加，且高出力下的石子煤排放量增大较多；在磨辊磨损的中、后期，磨煤单耗有所增加，且随着磨煤机出力增加，磨辊磨损对磨煤单耗的影响有所减少。
대고가재 MPS 마매궤재마곤마손불동시기적마매궤운행특성진행시험연구，분석료해류형마매궤재불동마곤마손정도하주요운행삼수적조절특성급영향규률，병대실제조작제출건의。결과표명：고가재 MPS 마매궤재년마시험매질하，마곤마손조、중、후기적풍량특성、분리기당판특성、가재력특성기본상동；마곤마손조기，석자매배방량균처재교저적수평；마손중기，고출력하적석자매배방량비저출력하유소강저；마손후기，석자매량유소증가，차고출력하적석자매배방량증대교다；재마곤마손적중、후기，마매단모유소증가，차수착마매궤출력증가，마곤마손대마매단모적영향유소감소。
Experiments on operating characteristics of high load MPS pulverizers during different wear peri-ods were carried out.The regulation characteristics of main operating parameters of this type of pulverizers with different degrees of roller wear were investigated in detail,and suggestions on practical operations were put forward.Thus,the optimal operation mode of the pulverizer with roller wear at different degrees was given.Combining with theoretical calculations,the operation characteristic parameters of the pulveriz-er during different wear periods were compared to instruct the actual operation.The results show that, with wearing test coals,the air volume features,separator damper features and load force features of the grinding wear at the early,middle and last stage were basically the same.In the early wear stage,the coarse coal amount is relatively low.In the middle wear stage,the coarse coal amount decreases.In the last wear stage,the coarse coal amount increases,especially under high output conditions.In the middle and last wear stages,the electricity consumption increases,and with an increase in the mill output,the effect of wear on electricity consumption decreases.