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    • 2. 发明授权
    • Method and apparatus for making cement with preheater, kiln and heat
exchanger for heating combustion air
    • 用于加热燃烧空气的预热器,窑和热交换器制造水泥的方法和设备
    • US4071309A
    • 1978-01-31
    • US690990
    • 1976-05-28
    • Isao Yamane
    • Isao Yamane
    • C04B7/43F27B7/20F27B15/00F27B7/00
    • F27B7/2033C04B7/43
    • A method and an apparatus is disclosed for producing such as Portland cement from pulverant raw material in a system having at least a preheater and a rotary kiln. The preheater may be of the type having a series of stages each provided by a cyclone dust separator for successively preheating the raw material in a counterflow of kiln waste gases and in which an identified one of the stages discharges a gas flow containing more thermal energy than can be used to advantage in preheating material in the remaining stages through which such gases must pass before dispersing in the surrounding atmosphere. A portion of the gases passing from the identified stage is diverted to a heat exchanger which utilizes the heat energy in such kiln waste gases to heat a clean stream of air. The thermal energy transfer to clean heated air is in turn delivered to the kiln and/or an auxiliary furnace connected to discharge into the kiln waste gas flow between the kiln and the identified stage, and such delivery of clean heated air provides heated combustion air for the burning of fuel in the kiln and/or auxiliary furnace.
    • 公开了一种用于在至少具有预热器和回转窑的系统中从粉碎原料制造诸如波特兰水泥的方法和装置。 预热器可以是具有一系列级的类型,其各自由旋风分离器分离器提供,用于在窑废气的逆流中连续地预热原料,并且其中识别的一个级排出包含比热能更多的热能的气流 可以在分散在周围环境中的这些气体必须通过的剩余阶段中预热材料的优点。 从识别的阶段通过的一部分气体被转移到利用这种窑废气中的热能来加热清洁空气流的热交换器。 然后将热能转移到清洁的热空气,然后传送到窑和/或辅助炉,连接到窑和所识别的阶段之间排放到窑废气流中,并且这种输送清洁的热空气提供加热的燃烧空气 在窑和/或辅助炉中燃烧燃料。