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公开(公告)号：US5253991A
公开(公告)日：1993-10-19
申请号：US754733
申请日：1991-09-04
摘要： The present invention is directed to a spheroidal particulate inorganic material of an inorganic particulate material such as spheroidal cement or slag whose respective particles are of a substantially spheroidal shape and have smooth surfaces having improved flowability and filling properties. The spheroidal particulate material is produced by subjecting the respective particles of the particulate inorganic material to a high temperature flame treatment and rapid cooling in air, or by dispersing fine particles of the inorganic material and an organic or inorganic binder in a non-aqueous solvent to form a slurry and granulating the slurry. Compositions containing the spheroidal particulate inorganic material are used in civil engineering works and construction. To improve energetic efficiency in the production of the spheroidal particulate inorganic material, particularly spheroidal cement or slag, an apparatus is used which is a retention furnace for retaining a molten liquid inorganic material, a nozzle assembly communicated to the retention furnace and capable of scattering therethrough the molten liquid inorganic material, a jet gas for entraining the molten inorganic material introduced in the nozzle assembly and scattering the molten inorganic material to cool it, and gas spray means for spraying the jet gas.
摘要翻译： 本发明涉及一种无机颗粒材料如球墨水泥或矿渣的球状微粒无机材料，其各自的颗粒具有基本上球形的形状，并且具有改善的流动性和填充性能的光滑表面。 球状颗粒材料通过使颗粒状无机材料的各个颗粒经受高温火焰处理并在空气中快速冷却，或者通过将无机材料和有机或无机粘合剂的细颗粒分散在非水溶剂中来制备， 形成浆料并使浆料成粒。 含有球形颗粒无机材料的组合物用于土木工程和建筑。 为了提高球状颗粒状无机材料，特别是球状水泥或渣的生产中的能量效率，使用了一种用于保持熔融液体无机材料的保留炉，与保持炉连通并能够散射的喷嘴组件 熔融液体无机材料，用于夹带引入喷嘴组件中的熔融无机材料并使熔融无机材料散热以将其冷却的喷射气体，以及用于喷射喷射气体的气体喷射装置。
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