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