Research on the Efficiency Improvement of Batch-type Small-diameter Bio-coke Production Process

Abstract

　　　One of the problems that hinder the spread of woody biomass is the melting of combustion ash. This is a big issue in home stoves. Unlike other woody biomass solid fuels, it is suggested that the combustion ash of Bio-coke is difficult to melt. Therefore, it is necessary to produce small-diameter Bio-coke of a size that can be applied to wood pellet fired home stoves, and to elucidate the melting mechanism of combustion ash and research for effective utilization of combustion ash. In this research, in order to improve the production ability of small-diameter Bio-coke, it worked on the improvement of the batch-type production process using a six-holed molder. (1) It was found that the size per piece can be increased by 78% by optimizing the initial moisture content. (2) It was found that the production ability per unit time could be improved by about 50-90% by shifting the production process using two molding units. (3) From the above results, it was found that the production efficiency can be improved 2.6-3.3 times that of the initially designed production system.