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    • 1. 发明专利
    • Sludge methane fermentation method and system using hydrothermal reaction
    • 使用水热反应的液化甲烷发酵方法和系统
    • JP2012200692A
    • 2012-10-22
    • JP2011069047
    • 2011-03-27
    • Kajima CorpMitsubishi Nagasaki Mach Co Ltd三菱長崎機工株式会社鹿島建設株式会社
    • TATARA MASAHIROKIKUCHI SHIGERUSHINOHARA NOBUYUKI
    • C02F11/04C02F11/08
    • C02F11/04C02F2103/32C02F2209/001C02F2209/055Y02E50/343
    • PROBLEM TO BE SOLVED: To provide a method and system that perform methane fermentation of sludge with high energy efficiency, stably for a long time by using circulation-type hydrothermal reactions.SOLUTION: In the method where the moisture content of sludge S is adjusted to a predetermined moisture content and then the sludge Sa whose moisture content has been adjusted is supplied into a circulation path 14a, 14b connecting a hydrothermal reactor 11 and a gas-liquid separator 12 and circulated for a predetermined time at a predetermined temperature and pressure to reduce the molecular weight thereof, and the sludge Sc having being reduced in the molecular weight outputted from the circulation path 14a, 14b is held in a fermentation tank 20 to be subjected to methane fermentation, a scale deposit state in the circulation path 14a, 14b is continuously detected, and the predetermined moisture content of the sludge Sa supplied into the circulation path 14a, 14b is adjusted according to a change in the scale deposit state. Preferably, a flowmeter 31 and a flow control valve 32 that control the circulation flow rate of the sludge Sa in the circulation path 14a, 14b at a predetermined flow rate are provided to detect the scale deposit state from an opening degree of the flow control valve 32, or the scale deposit state is detected from the surface temperature of the circulation path 14a, 14b.
    • 要解决的问题:提供通过使用循环型水热反应长期稳定地进行能量效率高的污泥的甲烷发酵的方法和系统。 解决方案:在将污泥S的水分含量调节到预定水分含量的方法中,然后将其水分含量已被调节的污泥Sa供应到连接水热反应器11和气体的循环路径14a,14b中 - 液体分离器12,并在预定温度和压力下循环预定时间以降低其分子量,并且将从循环路径14a,14b输出的分子量减小的污泥Sc保持在发酵罐20中 进行甲烷发酵,连续地检测循环路径14a,14b中的垢沉积状态,并且根据水垢沉积状态的变化来调节供给到循环路径14a,14b中的污泥Sa的预定含水量。 优选地,设置以预定流量控制循环路径14a,14b中的污泥Sa的循环流量的流量计31和流量控制阀32,以从流量控制阀的开度检测污垢沉积状态 从循环路径14a,14b的表面温度检测刻度沉积状态。 版权所有(C)2013,JPO&INPIT
    • 2. 发明专利
    • Method and system for methane fermentation of sludge using hydrothermal reaction
    • 使用水热反应进行泥沙发酵的方法和系统
    • JP2012200691A
    • 2012-10-22
    • JP2011069046
    • 2011-03-27
    • Kajima CorpMitsubishi Nagasaki Mach Co Ltd三菱長崎機工株式会社鹿島建設株式会社
    • TATARA MASAHIROKIKUCHI SHIGERUMAEDA HITOSHIOKABE MOTONOBUSHINOHARA NOBUYUKI
    • C02F11/04C02F11/08
    • C02F11/18C02F11/04C02F11/12C02F2209/03C02F2209/40C02F2209/42Y02E50/343Y02W10/37
    • PROBLEM TO BE SOLVED: To provide a methane fermentation method and system that can increase the amount of methane gas recovered from sludge pretreated by hydrothermal reaction.SOLUTION: After sludge S is concentrated to a predetermined moisture content by a concentration device 4, the concentrated sludge S is circulated between a hydrothermal reactor 11 and a gas-liquid separator 12 for a predetermined time to reduce the molecular weight thereof while heating the sludge to a hydrothermal reaction temperature T maximizing the amount of recovered methane gas per unit amount of the sludge resulting from methane fermentation, and the sludge S having being reduced in the molecular weight is held in a methane fermentation tank 20 for a predetermined time to recover methane gas G. Preferably, the hydrothermal reaction temperature T is a temperature in a range of 160-200°C, maximizing the amount of recovered methane gas per unit amount of the sludge resulting from methane fermentation, and the sludge S having being reduced in the molecular weight is held for 3-5 days in the methane fermentation tank 20 to recover the methane gas G.
    • 要解决的问题:提供可以增加由通过水热反应预处理的污泥回收的甲烷气体的量的甲烷发酵方法和系统。 解决方案:通过浓缩装置4将污泥S浓缩至预定的水分含量后,浓缩污泥S在水热反应器11和气 - 液分离器12之间循环预定时间以降低其分子量,同时 将污泥加热到水热反应温度T,使由甲烷发酵产生的每单位量的污泥中回收的甲烷气体的量最大化,将分子量降低的污泥S保持在甲烷发酵罐20中达预定时间 以回收甲烷气G.优选地,水热反应温度T为160-200℃范围内的温度,使甲烷发酵产生的每单位量的污泥中回收的甲烷气体量最大化,并且污泥S已经 降低分子量在甲烷发酵罐20中保持3-5天以回收甲烷气。版权所有(C)2013,JPO&INPI Ť
    • 4. 发明专利
    • BREAKING DEVICE OF BAG
    • JPH09207924A
    • 1997-08-12
    • JP3899796
    • 1996-01-31
    • MITSUBISHI NAGASAKI MACH CO
    • SONODA AKIRA
    • B65B69/00
    • PROBLEM TO BE SOLVED: To break rubbish bags and take out valuable materials without breaking them, by providing cutting devices having bag cutters circulating at a different speed from a conveyor at the side of the conveyor and vertically movable bag-pushing devices having a bag cutter at the upper side. SOLUTION: This breaking device of bags is at least constituted of a conveyor 2 for rubbish bags, cutting devices 3, 4 having a plurality of bag cutters 12 circulating along the transfer direction of the rubbish bags at a different speed from the conveyor 2 at both sides of the conveyor, and a plurality of vertically movable bag-pushing devices 5 having bag cutters 17 at the upper part of the conveyor 2. The rubbish bags fed from a feed opening 7 of a hopper 23 are rotated around the vertical axes in the transfer process of the conveyor 2, since they have a different transfer speed from the cutting devices. And hence, respective bag cutters cut different faces of a bag by turns and finally the bag is opened large.
    • 8. 发明专利
    • TUBE-INSIDE PERIPHERAL SURFACE BUILD-UP WELDING EQUIPMENT AND WELDING TORCH
    • JPH06344142A
    • 1994-12-20
    • JP16632493
    • 1993-06-10
    • MITSUBISHI NAGASAKI MACH CO
    • USUDA ATSUOMASUDA HEIHACHI
    • B23K9/04B23K9/12B23K9/29B23K37/00B23K37/047
    • PURPOSE:To simplify fitting work of a tube, to prevent the occurrence of defective welding and weld defects and further, to perform welding of the inside peripheral surface till the inside diameter of the tube attains the small diameter. CONSTITUTION:A build-upwelding equipment main body 3 and a positioner 25 which holds the tube (a) freely rotatably are set up opposite to each other and a welding torch 16 is provided freely movably in the specified direction of the longitudinal direction and freely reciprocatively in the longitudinal direction relatively for movement in the specified direction for the positioner 25 and freely ascendably and descendably. A control mechanism 27 which controls operation of the positioner 25 and the welding torch 16 and maintains constant the distance between an electrode 19 of the welding torch tip and the inside of the tube (a) through the ascent and descent of the welding torch 16 is provided. In addition, a supply path of inert gas, a cooling water conduit 21 and a welding wire 22 are arranged in a torch body 17 of the welding torch 16, the supply path of the inert gas is constituted of a conductive tube 20 to pass electricity and the conductive tube 20 and the welding wire 22 are arranged by separating in an insulating state.