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公开(公告)号：US20230194173A1
公开(公告)日：2023-06-22
申请号：US16977982
申请日：2018-04-04
发明人： Yasushi YAMAMOTO , Yoshiaki MAEDA , Kazuhiko YAMAGUCHI , Kunio MOTOYOSHI , Takayuki KIMURA , Kouji KAMADA , Kazushi IZUMI , Naoki UENO
CPC分类号： F27D3/0033 , F27D3/08 , F27D3/10 , F27B7/3205
摘要： [OBJECT] To provide a fractionating device capable of stably fractionating powders such as cement raw materials by a simple configuration.
[SOLUTION] A fractionating device 1 for fractionating some of a powder (cement raw material) R falling in a chute (main body) 2, wherein the fractionating device is equipped with a screw conveyor 5 which passes through the chute, a part of a casing 5a opening inside the chute, and receives part of the powder from an opening (inlet) 5b, and a collision separation member (collision separation rod) 4 which is provided above the screw conveyor in the chute and collides with an object when an object of a predetermined size or larger falls, and prevents the object from falling directly onto the screw conveyor. A rotation shaft 5d of the screw conveyor may be inclined from 5° to 20° with respect to the horizontal plane so that the end of the discharge port side of the screw conveyor is positioned above the other end and may be equipped with a guide member 3 that guides the powder falling in the chute in the direction of the opening of the screw conveyor.-
公开(公告)号：US20220235933A1
公开(公告)日：2022-07-28
申请号：US17629637
申请日：2019-08-06
发明人： Yasushi YAMAMOTO
摘要： A treatment method and apparatus is provided to effectively use a combustible waste such as waste plastic, waste tires, rice husk, wood shavings, PKS, RDF and sludge while maintaining stable operation; to improve the combustion efficiency of a fossil fuel such as coal and coke; and furthermore to reduce the NOx concentration in a cement kiln exhaust gas. An apparatus 1 for treating a combustible, the apparatus comprising: a mixer 3 for mixing a combustible C with a preheated raw material R2, which has a temperature of 600° C. or higher and 900° C. or lower and which is drawn from a preheater cyclone of a cement burning device 10, to gasify the combustible; and a feeder 5 for feeding the gasified combustible and the preheated raw material (mixed raw material M) to a region from an inlet end 13a of the cement burning device to a calciner 12. When the combustible and the preheated raw material are mixed, moisture may be added to cause water gas shift reaction, and the resultant water gas and the preheated raw material may be introduced to the region from the inlet end of the cement burning device to the calciner.
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公开(公告)号：US20210009455A1
公开(公告)日：2021-01-14
申请号：US16982894
申请日：2018-04-04
发明人： Yasushi YAMAMOTO , Takayuki KIMURA , Kouji KAMADA , Kazushi IZUMI , Naoki UENO
摘要： To treat organic sludge while keeping facility costs, cement production efficiency, and a reduction in clinker production amount to a minimum. An organic sludge treatment device includes: a fractionation device 7 that fractionates a preheated raw material R2 from a preheater cyclone 4C excluding a bottommost cyclone of a cement burning device 1; a mixing device 8 that mixes an organic sludge S with the fractionated preheated raw material, and that dries the organic sludge using sensible heat of the preheated raw material; and a supply device (mixture chute 12, double-flap damper 13, shut damper 14) that supplies a mixture M from the mixing device to a calciner furnace 5 of the cement burning device or to a duct disposed between a kiln inlet portion of a cement kiln 2 and the calciner furnace. The treatment device may be provided with an introduction device for introducing an exhaust gas G2 including dust, odor and water vapor from the mixing device to a gas outlet of a bottommost cyclone 4A of the cement burning device.
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