The Research Of Drying Of Huolinhe Lignite

The researeh is to utilize the Huolinhe lignite as the raw materia, adopting ordinary drying and hot water drying methods. The purpose is to find the method to reduce the water of lignite and increase their heat, thereby reducing transport costs and improving power generation efficiency.Ordinary drying of lignite carries out single factor analysis, orthogonal experimental design and uniform design of experiments from the aspects of heating time and heating temperature. Experimental results of the study use Origin7.5 analysis the method of single common factor analysis; and use SPSS11.5 analysis the method of orthogonal experimental design and uniform design of experiments and get the law of ordinary drying of lignite.Hot water drying of lignite carries out orthogonal experimental design and uniform design of experiments from the aspects of preheating temperature, preheating time, temperature of autoclave, pressure of autoclave, coal particle size, the amount of coal, stirring rate, residence time of the final temperature and the temperature and time of ordinary drying after hot water drying. Use SPSS11.5 analysis the method of orthogonal experimental design and uniform design of experiments and get the best process parameters of hot water drying of lignite. Determine the theoretical maximum heat range and the maximum theoretical heat after absorption. The heat of coal sample can get the secondary quality standards of coal power plants which demand the heat after hot water drying.This paper presents a rigorous scientific analysis method of the exploration experiments-orthogonal experimental design-uniform design of experiments. This paper also proposes a comprehensive utilization of resources in the process of lignite-brown coal power generation and pyrolysis combined hot water drying process.