秸秆成型燃料锅炉的设计及试验研究

摘要

Based on the high volatile and steady burning performances of straw briquettes, the straw briquette boiler with 200 kW heating power was designed. The hearth was divided into thermal decomposition zone, charcoal burning zone and volatile burning zone, respectively, realized the staged burning of straw briquettes. According to the experimental data of corn straw briquette with 5 different diameters, separately lest output heating power, CO content in smoke and the heat utilizing rate. When briquettes diameter was 40~50 mm, the output heating power was maximum, the heat utilizing rate was relatively higher, and CO content in smoke was lower.%根据秸秆成型燃料高挥发性和燃烧稳定的特点,完成了输出热负荷200 kW的秸轩成型燃料锅炉的设计.其炉膛可分为热解区、炭燃烧区与挥发分燃烧区3部分,实现了秸秆成型燃料的分段燃烧.以直径不同的5种玉米秸秆成型燃料进行了试验研究,分别对其输出热负荷、燃气中CO含量及热利用效率进行了测试,发现利用直径为40～50 mm成型燃料时,锅炉的输出热负荷最大,热利用率较高,烟气中CO含量较低.