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提出了颗粒的滞止浓缩过程与弥散过程是浓缩煤粉燃烧技术的基础这一新概念 ,并分析了滞止浓缩过程与弥散过程的原理。以挡板作为非流线型体 ,利用粒子动态分析仪(PDA)在冷态试验台上研究了非流线型体的滞止浓缩过程与弥散过程 ,首次证明了滞止浓缩过程的存在。试验结果表明 ,利用非流线型体可以达到浓缩煤粉的目的
Proposed a new concept that the process of particle stagnation and concentration and dispersion process are the basis of concentrated coal combustion technology, and analyzed the principle of stagnant concentration process and dispersion process. Using the baffle as the non-streamline body, the stagnation-concentration process and the dispersion process of the non-streamlined body were studied on the cold test bed by the particle dynamic analyzer (PDA), and the existence of stagnation and concentration process was proved for the first time. The experimental results show that the use of non-streamlined body can achieve the purpose of concentrating coal