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生物质颗粒资讯NEWS

生物质颗粒燃料燃烧模拟

来源: 发布时间:2020-12-16 5541 次浏览

文摘:在生物质颗粒燃料燃烧试验锅炉平台上,对不同配风方式、一、二次风比、不同二次风位置、改变燃料层厚度四种工况进行了试验研究。生物质锅炉燃料生物质经过压缩成型后,其体积大幅减小从而更便于运输、贮存和使用,解决了生物质大规模利用的关键难题,因此该技术及设备非常适合于生物质发电、工业锅炉的清洁能源改造、农村新型炊事燃料。不结焦生物质颗粒发展秸秆制粒技术,对于生物质的大规模应用起到关键性作用。生物质颗粒是在常温条件下利用压辊和环模对粉碎后的生物质秸秆、林业废弃物等原料进行冷态致密成型加工。实验结果表明,生物质颗粒燃料锅炉的热效率高达77.69%,锅炉废气中nox、so2等环境指标远低于燃煤锅炉。燃烧模拟实验为生物质颗粒锅炉的设计和运行提供了规律性的参考数据。

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实验生物质颗粒燃料是由成形的颗粒玉米秸秆压缩,颗粒是圆柱形的,外径8mm,在20?30mm的长度。发热量的玉米秸秆16284kJ / kg的;水分含量5.08%;的85.42%,挥发物含量;灰分含量为7.22%;的2.28%固定碳含量;灰锥软化温度(ST)1000℃; TGA结果表明:集中在析出温度范围的220?270℃,周围235℃的峰]?秸秆颗粒玉米主要部分;。焦炭燃烧的温度范围是280?430℃。