CAJ | 학술논문

为了探究煤灰颗粒从金属板上脱落的影响因数，自建实验平台，记录了煤灰颗粒振打脱落过程以及每次振打中煤灰脱落质量，探究了机械振打除灰中振打敲击力大小对振打除灰的影响，以及不同煤灰厚度对最小有效振打力的影响.结果显示，在振打冲击金属板时，煤灰颗粒脱落存在“分层现象”和“分阶段现象”，而且随着振打力的增加各阶段之间的分界越模糊；煤灰颗粒脱落的质量向前几次振打冲击集中；煤灰的厚度越大，最小有效振打力越小，当煤灰厚度为1 mm﹑2 mm﹑3 mm和4 mm时，最小有效振打力分别为65.3 N﹑36.9 N﹑25.9 N和17.0 N.
위료탐구매회과립종금속판상탈락적영향인수，자건실험평태，기록료매회과립진타탈락과정이급매차진타중매회탈락질량，탐구료궤계진타제회중진타고격력대소대진타제회적영향，이급불동매회후도대최소유효진타력적영향.결과현시，재진타충격금속판시，매회과립탈락존재“분층현상”화“분계단현상”，이차수착진타력적증가각계단지간적분계월모호；매회과립탈락적질량향전궤차진타충격집중；매회적후도월대，최소유효진타력월소，당매회후도위1 mm﹑2 mm﹑3 mm화4 mm시，최소유효진타력분별위65.3 N﹑36.9 N﹑25.9 N화17.0 N.
To study the inf1uence factors of coa1 ash partic1es fa11ing from the meta1 p1ate, the experimenta1 p1atform was bui1t to record the fa11ing process and the fa11ing mass of the partic1es. The inf1uence of rapping force on the mechanica1 rapping ash-remova1 and the effect of the coa1 ash thickness on the minimum effec-tive rapping force were both exp1ored. The resu1ts show that there are stratification and stage phenomenon in the process of coa1 ash dropping when knocking the meta1 p1ate and the boundary between different stages was b1urred with the increase of the rapping force; meanwhi1e, the mass of the partic1es of coa1 ash fa11ing off concentrates on previous knockings;the greater the thickness of the coa1 ash, the sma11er the minimum effec-tive rapping force. The minimum effective rapping forces are 65.3, 36.9, 25.9 and 17.0 N, respective1y when the thickness of the coa1 ash 1ayer is 1,2,3 and 4 mm.