Abstract: The straw can be used as a new energysaving and environmentfriendly raw material after microgrinding to achieve fine and highvalue utilization. By reading literature on the topic, the research status of the utilization technology of straw powder and the research situation of the method, theory, and equipment of straw microgrinding were summarized. This paper identified the existing problems and prospects for future development. Straw has diverse applications, including its use in composite materials, and the market demand continues to grow. According to the characteristics of straw, the most suitable grinding method is mechanical grinding, while many problems exist, such as high energy consumption and dust pollution. At present, most straw microgrinding equipment draws inspiration from the microgrinding technology and equipment of ore materials, which has poor adaptability to different raw materials and fails to meet the requirements of fine powder particle size and high productivity. Additionally, research on grinding theory mainly focuses on factors influencing the grinding effect, energy consumption, and yield, while limited research is done on the grinding mechanism based on the physical properties of straws. In the future, the application scenario of highvalue straw powder should be expanded, the straw composite microcrushing method more suitable for largescale production should be explored, and the automation, specialization, simplification, and lightweight nature of straw microcrushing equipment should be improved.

Key words: straw utilization, straw powder, microgrinding, microcomminution theory, micropulverizing equipment

摘要： 秸秆微粉碎后可作为新型节能环保原料，实现精细化和高值化利用。通过文献综述秸秆粉体的利用技术、秸秆微粉碎方式、秸秆微粉碎理论及设备研究现状，指出存在问题并展望未来发展方向。当前秸秆的利用途径多元化，秸秆粉体被应用于复合材料等众多领域，且市场需求持续增长。针对秸秆特性最适宜的粉碎方式是机械粉碎，但存在能耗大、粉尘污染等问题。秸秆微粉碎设备多借鉴矿石类物料的微粉碎设备，原料适应性差，且不能兼顾细粉碎粒度和高生产率的要求。粉碎理论研究多关注粉碎效果、能耗以及产量的影响因素，针对秸秆物性进行粉碎机理的研究较少。未来应扩大秸秆粉体高值化应用场景，探究更适宜规模化生产的秸秆复合微粉碎方式，提高秸秆微粉碎设备的自动化、专门化、简单化和轻量化。

关键词: 秸秆利用, 秸秆粉体, 微粉碎, 微粉碎理论, 微粉碎设备