The invention belongs to the technical field of
biomass fuel and preparation thereof, and particularly discloses cotton stalk core
biomass compression fuel. In the fuel, the cotton stalk core content is 85 to 90 percent, the compressed density of the fuel is 1,100 to 1,400kg / m<3>, the relaxed density is 700 to 900kg / m<3>, and the
water content is 8 to 12 percent. The preparation method comprises the following steps of: using the cotton stalks, of which the
water content is below 12 percent, as a
raw material; performing separating treatment by a cotton stalk
skin-core separating
machine; crushing the separated cotton stalk cores; molding the cotton stalk cores by compression under a pressure of 70 to 100MPa; and performing cooling and packaging to obtain the finished products, wherein thebyproducts of cotton stalk
skin obtained by separation can also be used for
spinning and paper-making, so that the comprehensive utilization of the cotton stalks is realized. The cotton stalk core
biomass compression fuel has the advantages of
high heat efficiency, low ash content, little
pollution, no damage to a boiler, convenient transportation and storage and the like; and the process method has the advantages of high
process efficiency, low equipment cost, low production cost, good product quality and the like.