生物质层燃燃烧过程中的影响因素分析

Analysis of the influence factors of biomass layer combustion process

针对生物质层燃燃烧过程,综述了生物质燃料物理性质、供风以及炉排运动形式对层燃燃烧过程影响的研究进展;归纳了颗粒粒度大小、密度和全水分对燃烧过程的影响,操作因素中风量分配、风速、空气预热对燃烧的影响和不同炉排运动对料床上颗粒混合状况和燃烧的影响。当前,层燃燃烧过程的影响因素分析,多数都是基于固定床或者移动炉排开展的实验,对于由炉排运动引起的燃烧过程中料床上颗粒混合、颗粒粒度大小分布、孔隙率、料床厚度不均匀性等规律的研究,还处于初始阶段。

Aiming at the influence factors in the biomass layer combustion process, this paper in- troduces the relative research progress on the biomass fuels physical properties, air supply and form of grate movement. Meanwhile, this paper summarizes the combustion process changes about the particle size, density, total moisture, wind distribution, wind speed, air preheating and grate movements in detail. However, the influence factors of layer combustion process are still in the ini- tial stage of research.