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    • 2. 发明授权
    • Method for reducing comminution energy of a biomass fuel
    • 减少生物质燃料粉碎能量的方法
    • US4589357A
    • 1986-05-20
    • US768306
    • 1985-08-22
    • James F. L. LincolnManfred K. BuderCraig A. BrownGregory P. GolikeRobert M. Spurrell
    • James F. L. LincolnManfred K. BuderCraig A. BrownGregory P. GolikeRobert M. Spurrell
    • C10L5/44F23G5/02F23K1/00F23D1/00
    • F23G5/02C10L5/44F23K1/00F23G2201/10F23G2201/602F23G2201/80F23G2209/261Y02E50/10Y02E50/30
    • The present invention relates to the preparation and burning of biomass-derived fuels such as wood waste or peat. Wood waste or "hog fuel" from the forest industries is of particular interest. Normally the entire stream of this material must be finely ground if it is to be successfully burned in an air suspension burner without any fossil fuel support. It has now been discovered that a bimodally sized fuel can be used. Only about 10-20% of the total heat energy is provided from a portion ground to a size less than about 100 .mu.m. This serves as an ignition component for a principal fuel which may be of much larger size. The usual hog fuel pile contains both bark and wood. Of these two materials, bark is much more friable and easily ground to fine particle size than wood. A major reduction in grinding energy is achieved by selecting the more friable material to be ground to fine size as the ignition fuel. The more resistant material is used as the principal fuel. When using a bimodal system, best results are obtained when the amount of ignition fuel sent to the burner is maintained constant. Load swings are accommodated by varying only the principal fuel component.
    • 本发明涉及生物质衍生的燃料如木材废料或泥炭的制备和燃烧。 森林工业的木材废料或“猪肉燃料”特别令人感兴趣。 通常,如果要在没有任何化石燃料支持的空气悬架燃烧器中成功燃烧,则该材料的整个流必须精细磨碎。 现在已经发现可以使用双峰尺寸的燃料。 总热能的大约10-20%从地面到小于约100μm的尺寸提供。 这用作可能具有更大尺寸的主要燃料的点火部件。 通常的猪肉燃料堆包含树皮和木材。 在这两种材料中,树皮比木材更易碎,容易磨碎成细粒度。 通过选择要被研磨的较脆碎的材料作为点燃燃料,可以大大降低磨削能量。 较为耐用的材料用作主要燃料。 当使用双峰系统时,当燃烧器发出的点火燃料的量保持恒定时,可获得最佳效果。 仅通过改变主要燃料组分来容纳负载摆动。