Technology for recycling bottom slag in paper plant to produce biomass fuel

The invention discloses a technology for recycling bottom slag in a paper plant to produce biomass fuel. The technology comprises the following steps of extrusion, magnetic separation, shredding, drying, crushing, air separation, molding and packaging. The technology has the advantages that the recovery and resource utilization of metal in waste residues are achieved through a purely physical method; on one hand, metal materials are separated through magnetic separation and vortex, thereby achieving the recovery of resources; on the other hand, the remaining waste residue materials are made into the biomass fuel through smashing and molding, thereby achieving recycling of the resources. 本发明公开了一种纸厂底渣再生利用制造成生物质燃料的工艺，包括以下步骤：挤压、磁选、撕碎、烘干、破碎、风选、成型、包装；本工艺通过纯物理的方法，实现对废渣中的金属回收和资源利用。一方面通过磁选和涡流分选出金属材料，实现了资源的回收；另一方面，通过粉碎和成型将剩余的废渣材料制作成生物质燃料，实现了资源的再生利用。