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    • 4. 发明公开
    • Self-contained, on-line, real-time bulk material analyzer
    • 自包含在线,实时大容量分析仪
    • EP0171256A3
    • 1986-11-26
    • EP85305429
    • 1985-07-30
    • GAMMA-METRICS
    • Atwell, Thomas L.Miller, James F.Corte, Ernesto A.Conwell, Richard L.Lingren, Clinton L.
    • G01N23/222G01N23/12G01N01/20
    • G01N23/222G01N23/12G01N2223/0745G01N2223/301G01N2223/617
    • A complete prompt gamma ray neutron activation analysis (PGNAA) bulk material analyzer is self contained in a sealed and air conditioned housing. Bulk material is channeled by an open-ended vertical chute having a one-foot-by-three-foot cross-sectional dimension through an activation region between three neutron sources and two gamma ray detectors. The sources are symmetrically disposed on one of the three-foot- long sides of the chute from one end of such side to the other. The detectors are symmetrically disposed on the opposite side of the chute between positions opposing the positions of the sources on the one side of the chute. The chute is dimensioned to enable free flow of various bulk materials. It handles coal of up to a top size of four inches and with typical surface moisture contents and aglomeration characteristics. The relative disposition of the sources and detectors results in the measurements being independent of the lateral distribution of the bulk material within the chute. The signals produced by the detectors are continuously processed by signal processing equipment sealed within a separate compartment in the container to provide periodic measurements of the elemental content of the bulk material channeled through the activation region. A measurement of the bulk material channeled through the activation region during each periodic measurement interval is processed over several measurement intervals with the periodic elemental content measurements to provide weighted average measurements of the elemental content of bulk material over time periods representing average lots of the bulk material.
    • 5. 发明公开
    • Automatic material sampler
    • 自动材料采样器
    • EP0222540A3
    • 1988-04-06
    • EP86308247
    • 1986-10-23
    • HALLIBURTON COMPANY
    • Wienck, Dennis AllanMints, Danny Keith
    • G01N01/20
    • G01N1/2035G01N2001/2092
    • An apparatus for sampling material flowing through a conduit, comprising: housing means for receiving therethrough a flow of the material as the material flows through the conduit, said housing means including cross-section defining means (14, 16) for defining a full cross-sectional sample area, receptacle means (18) for receiving a collection member (40) outside said defined cross-sectional sample area and connector means (26,28) for connecting said cross-section defining means to the conduit so that the cross-sectional sample area defined by said cross-section defining means is aligned with the cross-section of the conduit; and sampler means, connected with said housing means, for collecting a full cross-sectional sample of the material as the material flows through said cross-section defining means of said housing means under pressure, said sampler means including said collection member (40) disposed in said housing means for receiving a portion of the flowing material; and movement means for moving said collection member from a location outside the full cross-sectional sample area of the material across the full cross-sectional flow sample area of the material, so that it receives said portion of said flowing material as it passes thereacross.
    • 9. 发明公开
    • A metering valve
    • 一个计量阀
    • EP0181299A3
    • 1988-05-25
    • EP85850335
    • 1985-10-24
    • LARS LJUNGBERG, LAB TRADE AB
    • Permer, Christer
    • G01N01/00G01N01/20G01F11/22G01N01/10
    • G01N1/2035G01F11/22
    • A metering valve for extracting a given volume of fluid from a first fluid flow and introducing the thus extracted volume of fluid to a second fluid flow, comprising a stationary valve component provided with a first and a second supply channel and a first and a second discharge channel, and a metering component which can be rotated relative to the stationary valve component and which incorporates a metering channel of the aforementioned given volume. In accordance with the invention, the valve component (2) has a planar surface (9) into which the aforementioned supply and discharge channels open out. The metering component (7) also includes a planar surface (10) which abuts against the planar surface (9) of the valve component (2) and into which the two ends of the metering channel open out. These ends are so located that in the first position of rotation of the metering component (7) in relation to the valve component (2) they connect the first supply channel with the first discharge channel of the valve component (2) and in a second position of rotation connect the second channels of the valve component (2).
    • 一种计量阀,用于从第一流体流中提取给定体积的流体并将由此抽出的流体引入第二流体流,该流量包括设置有第一和第二供应通道的固定阀部件,以及设置有第一和第二排出口 通道和计量部件,其可以相对于固定阀部件旋转并且包括前述给定体积的计量通道。 根据本发明,阀组件(2)具有一个平面(9),上述的排出通道向外敞开。 测量部件(7)还包括与阀部件(2)的平坦表面(9)抵接并且计量通道的两端打开的平面(10)。 这些端部的位置使得在计量部件(7)相对于阀部件(2)的旋转的第一位置中,它们将第一供应通道与阀部件(2)的第一排放通道连接,并且在第二 旋转位置连接阀组件(2)的第二通道。