Abstract： The average density of each density level is often used in coal preparation calculation. The traditional method is to take the arithmetic mean of the upper and lower limits of the density range of each density level as its average density. Although this method is simple, it will bring large errors. However, if the average density of each density level is accurately calculated according to the principle of mass conservation, due to the integral term in the calculation formula of the average density, it is generally necessary to use computer programming for accurate calculation, which is very cumbersome. In view of this situation, this paper provides a simple method to obtain the average density of each density level by using the Gauss integral formula approximation method with the help of Excel.
申永强. 基于高斯积分法高精度获得各密度级平均密度并用Excel实现的方法[J]. 煤炭与化工, 2023, 46(1): 112-115.
Shen Yongqiang. Method of obtaining the average density of each density level with high precision based on Gaussian integral method and realizing it with Excel. CCI, 2023, 46(1): 112-115.
