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一、导言 在水煤浆技术的应用研究工作中,为了改善水煤浆的流动特性,提高水煤浆的热能利用率,前人进行了降低煤粉堆积空隙率的研究。水煤浆最大含煤量已达83.3％。三峰水煤浆比其相应的单、双峰水煤浆具有高浓度、低粘度、低着火温室的优点。然而,从制备成本考虑,单峰水煤浆显然由于节省了筛分和掺混等方面的费用而比多峰水煤浆经济。因此,需要寻找一种以单峰代替多峰,并具有低堆积空隙率的煤粉粒度分布。该分布
I. INTRODUCTION In the research and application of CWS technology, in order to improve the flow characteristics of CWS and improve the thermal energy utilization rate of CWS, previous researches on reducing the porosity of coal accumulation were carried out. The maximum coal content of coal-water slurry has reached 83.3%. Compared with its corresponding single and bimodal CWS, Sanfeng CWS has the advantages of high concentration, low viscosity and low ignition temperature. However, from the point of view of preparation costs, unimodal CWS is obviously more economical than the multi-peak CWS due to the savings in screening and blending. Therefore, there is a need to find a pulverized coal particle size distribution that has a single peak instead of a multi-peak and a low void fraction. The distribution