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    • 36. 发明授权
    • Process for making hollow, ceramic spheroids
    • 制造中空陶瓷球体的方法
    • US4769189A
    • 1988-09-06
    • US940795
    • 1986-12-12
    • David K. Douden
    • David K. Douden
    • C04B18/02C04B38/00F16L1/24B29B9/12
    • C04B38/009C04B18/027C04B38/0038F16L1/24
    • Process for making hollow, ceramic macrospheres by making a paste of a continuous phase material (e.g., sodium silicate or potassium silicate) and an insolubilizing agent (e.g., kaolin clay). Pellets are formed from the paste and expanded by subjection to heat to form hollow spheroids. The spheroids are fired at a temperature (typically 600.degree.-1000.degree. C.) and for a time sufficient to insolubilize the continuous phase material. The process may further include coating the fired spheroids with an epoxy resin (to reduce porosity) and/or bonding a plurality of the fired spheroids together to form a rigid mass of bonded spheroids.
    • 通过制备连续相材料(例如硅酸钠或硅酸钾)和不溶解剂(例如高岭土)的糊料制备中空陶瓷宏观球的方法。 颗粒由糊状物形成,并通过加热膨胀形成中空球体。 球体在一定温度(通常为600°-1000℃)下烧制,并持续足以使连续相材料不溶解的时间。 该方法可以进一步包括用环氧树脂涂覆烧制的球体(以减少孔隙率)和/或将多个烧制的球体粘合在一起以形成刚性的粘合球体。
    • 38. 发明授权
    • Flotation riser
    • 浮选提升管
    • US4646840A
    • 1987-03-03
    • US729623
    • 1985-05-02
    • Roy E. BartholomewRonald G. PettusEmanuel SchnitzerEdmund A. Fisher
    • Roy E. BartholomewRonald G. PettusEmanuel SchnitzerEdmund A. Fisher
    • E02B17/00E21B17/01F16L1/24E21B7/12
    • E21B17/012F16L1/24
    • A flotation riser having a series of annular chambers with a riser string extending in free-standing relation through said chambers, means for supplying gas to the chambers to control buoyancy, means to supply gas to a plurality of the lowermost chambers to provide an emergency supply of deballasting gas, and means for remotely releasing said supply of gas into the chambers above to render the flotation riser free-standing to permit release from the floating platform during emergencies. A method of storing emergency deballasting gas and for emergency deballasting of the chambers to render the flotation riser freee-standing including the steps of supplying gas to the lowermost chambers, retaining the gas in said lowermost chambers, and remotely releasing the gas and conducting it to higher chamber to deballast such chambers sufficient so that said flotation riser is free-standing.
    • 一种具有一系列环形室的浮选提升器,其具有通过所述室自由延伸的提升管柱,用于向所述室供应气体以控制浮力的装置,用于向多个最下室供应气体以提供紧急供应 的废气,以及用于将所述气体供应远程释放到上述室中的装置,以使浮选提升管独立,以允许在紧急情况期间从浮动平台释放。 一种存储应急除气的方法,用于对室进行紧急卸压以使浮选提升管自由站立,包括将气体供应到最下室,将气体保持在最下室中,并远离释放气体并将其传导至 更高的室以使这样的室去除,使得所述浮选提升管是独立的。