摘要：从理论研究、流态划分、采用新技术手段测量、改进模型、改善性试验和数值模拟等方面综述气力输送技术的研究现状;认为改善性试验、改进模型、数值模拟是主要的3种研究手段;提出可视化气、固两相流的流动状态, 着力改进技术难点, 寻求适合的辅助实测设备获取流态转换的关键参数, 模拟数据补充试验数据, 改进现有经验公式, 寻找试验范围与工业范围内数据的差异性等热点。

关键词：管道；颗粒；气力输送；压降

Abstract：The research of pneumatic conveying technology was classified and summarized according to the theoretical research, the fluid division, the use of new technical means to measure, improving the model, improving the test condition, numerical simulation and so on. The main three research methods were improving experiment, improving model, and numerical simulation. Based on the existing research, the development of pneumatic conveying technology was discussed, it was proposed to visualize the flow state of the gas-solid two-phase flow, to improve the technical difficulties, to find the appropriate auxiliary measurement equipment in obtaining the key parameters of flow conversion, to supplement the experimental data through simulation, to improve the existing empirical formula, to look for differences between experimental data and industrial data and other hot spots.

Keywords: pipeline；particles；pneumatic conveying；pressure loss