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大粒径生物质成型燃料物理特性的研究

Keywords: 大粒径生物质,秸秆,成型燃料,物理特性,燃烧特性

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Abstract:

以华北产量较大的玉米秸秆、大豆秸秆为原料,采用HPB-III改进型生物质秸秆成型机,就大粒径秸秆粒度、含水率等对成型密度、抗水性影响因素进行了研究。结果发现,原料含水率在8%~15%时均很容易压缩成型,在12%左右成型效果最佳,成型密度接近或大于1g·cm-3。经抗水性试验发现其耐水浸蚀性能好,玉米秸秆成型燃料最长达300h,便于储存、处理及运输。从成型燃料专用燃烧设备燃烧试验看到,该成型燃料燃烧充分,燃烧效率超过98%,最高燃烧温度1100℃以上,燃烧过程飞灰少,不结渣或轻微结渣。

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