... and cotton stalks ,nutshell, coconut shell ,etc Working principle:Briquette machine uses a large screw to grind, compress and extrude ... the biomass to form into various moulds of high density briquette, such as hexagonal,quadrangular, square,etc. As your requirement, ... fields :Boilers : It can be used in the boilers of Paper Mills, Sugar Mills, Dyeing houses, leather, lamination industries, Vanaspati ...