煤炭筛分资料与浮沉资料合并方法的研究

Study on the method for the merger of coal screening and sink-and-float data

针对同一煤层多组煤样筛分资料、浮沉资料分别合并的需要,结合煤样实际筛分、浮沉资料,通过算术平均法对各指标分别进行合并,并对勘查区煤炭在不同精煤灰分时的可选性等级进行评价。研究表明:合并后的筛分资料、浮沉资料能反映出合并前各自的基本信息,合并前后的筛分煤样、浮沉煤样煤质指标基本一致。

To meet the need for the consolidation of the respective screening data and float-and-sink data of a group of samples collected from the same coal seam, a study is made of the method for the merger of the respective data based on the relevant screening and float-and-sink actually obtained with coal sam- pies. The paper presents an introduction to the method of arithmetic means used for the combination of the data and the way for the assessment of the grade of washability of the coal in an area under exploration using the consolidation data as mentioned above. The result shows that the merged screening data and float-and-sink data can well reflect their respective basic information, and the data are consistent with each other before and after consolidation is made.