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    • 2. 发明申请
    • METHODS OF MAKING FUSED PARTICULATES BY FLAME FUSION
    • 通过火焰熔融制备熔融颗粒的方法
    • WO1997016384A1
    • 1997-05-09
    • PCT/US1996015148
    • 1996-09-20
    • MINNESOTA MINING AND MANUFACTURING COMPANY
    • MINNESOTA MINING AND MANUFACTURING COMPANYCASTLE, Richard, B.
    • C03C12/00
    • B01J8/18B01J2/16B01J6/005C03B19/102C03C12/00Y02P40/57
    • The disclosure describes methods for producing bulk, particulate material that includes solid, generally ellipsoidal particles. Irregularly shaped feed particles with average particle sizes of up to 25 microns on a volume basis are dispersed in at least a portion of a combustible gas mixture by application of force and/or fluidizing agents. The combustible mixture with particles in suspension is then delivered, while controlling agglomeration or re-agglomeration of the particles, to at least one flame front. There, the mixture and suspended particles are uniformly distributed across the surface(s) of and passed through the flame front(s) with a high concentration of particles in the mixture. This flame front and the resultant flame(s) with suspended particles are located in at least one "wall free" zone. In such zone(s) the flame(s) may expand while the particles are maintained in dispersion and heated, with controlled and highly efficient application of heating energy. At least partial fusion occurs within at least the surfaces of the particles at high thermal efficiencies, while agglomeration of particles during fusion is inhibited.
    • 本公开描述了用于生产主体颗粒材料的方法,其包括固体,通常椭圆形的颗粒。 基于体积的平均粒径达25微米的不规则形状的进料颗粒通过施加力和/或流化剂分散在可燃气体混合物的至少一部分中。 然后将悬浮液中的颗粒的可燃混合物输送到至少一个火焰前沿,同时控制颗粒的附聚或再附聚。 在那里,混合物和悬浮颗粒均匀分布在混合物中高浓度的颗粒的表面上并通过火焰前沿。 该火焰前面和所产生的具有悬浮颗粒的火焰位于至少一个“无壁”区域。 在这样的区域中,火焰可以在颗粒保持分散和加热的同时膨胀,同时控制和高效地施加加热能量。 在高热效率下,在颗粒的至少表面内发生至少部分熔融,而在熔化期间颗粒的聚集被抑制。