摘要
引用淮南谢桥动力煤选煤厂无压给料三产品重介质旋流器单机检查试验数据,验证原料煤及重选产物中1.60kg/L～1.80kg/L密度级、1.80kg/L～2.10kg/L密度级以及1.60kg/L～2.10kg/L密度级的密度与灰分之间的正相关关系,并推导相应的回归方程。采用数理统计的t检验法佐证了原料煤（1.60kg/L～2.10kg/L密度级）密度与灰分的回归方程的适用性,即该回归方程亦可用于对重选产物的密度或灰分的预测计算。
The check test data of Non-pressure feeding three products heavy medium swirl single machine in Huainan Xieqiao power coal preparation plant was quotinged,the positive relationship of raw coal and gravity coal preparation product in aspects such as density of 1.60 kg/L～1.80 kg/L density grade,1.80 kg/L～2.10 kg/L density grade and 1.60 kg/L～2.10 kg/L density grade and ash content was validated,and the regression equation was conducted,using the t test method in mathematical statistics,the applicability of density and ash regression equation for relatively high density coal was verified,this equation could also be used for prediction calculation of density or ash of heavy medium preparation production.
作者
任利勤
马涛
梁辽
程翔锐
吴大为
REN Li qin, MA Tao, LIANG Liao, CHENG Xiang rui, WU Da -we(1 Tangshan Guohua Technology International Coal Blending and Coal Preparation Center Engineering Corporation Ltd. , Tangshan 0G3020, China ; Shenhua Ningzia Mining group, Yinchuan 750411, China 3. Beijing Guohua Technology Group CorporationLtd. , Beijing 101300, China)
出处
《煤质技术》
2018年第3期55-59,共5页
Coal Quality Technology
关键词
原料煤
重选产物
密度
灰分
正相关关系
回归方程
t检验法
raw coal
heavy medium preparation production
density
ash
positive correlation
regression equation
t-test
