Due to its natural antibacterial ingredients and excellent moisture permeability,hemp has regained attention in the textile industry.The traditional utilization of hemp mainly focuses on the outer layer of phloem fibers,and the hemp stem core,which accounts for 70％～80％of hemp fiber production,is usually incinerated as fuel or directly buried as agricultural waste.Regardless of the development or utilization of hemp stem core energy,it is necessary to crush and process it for further application.The study mainly focuses on the preparation theory and methods of hemp stem core powder,and discusses the process technologies,such as hammer crushing,airflow crushing,and vibration crushing,so as to prepare for the preliminary treatment process of hemp stem core powder conversion and utilization.
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