Abstract: Provided is a method for treating a sulfide, the method being suitable for obtaining nickel and/or cobalt from a sulfide containing copper and nickel and/or cobalt. The method relates to a method for treating a sulfide containing copper and nickel and/or cobalt, the method including pulverizing the sulfide by subjecting the sulfide to a pulverizing treatment so as to obtain a pulverized sulfide having a particle size of 800 ?m or less; and leaching the pulverized sulfide by subjecting the pulverized sulfide to a leaching treatment with an acid under a condition in which a sulfurizing agent is present to obtain a leachate. For example, the sulfide to be treated is generated by reducing, heating, and melting a waste lithium-ion battery to obtain a molten body and adding a sulfurizing agent to the molten body to sulfurize the molten body.

Abstract: An inspection cable guide mechanism of the present disclosure includes a heat-resistant sheath having flexibility through which a cable is allowed to be inserted and cooling air is allowed to flow toward a tip through a gap between the cable and the heat-resistant sheath, a segment stacked body configured by stacking segments having heat resistance configured to cover the heat-resistant sheath in a centerline direction, and a plurality of wires disposed around the heat-resistant sheath and extending along a centerline, one segment of the segment stacked body is swingable with respect to two segments adjacent to the one segment about swing axes extending in a direction perpendicular to the centerline, the two swing axes becoming centers when the one segment swings with respect to the two segments are perpendicular to each other when viewed in the centerline direction, and one end of each wire is fixed to one of the segments in the segment stacked body.

Abstract: A control device for an inspection device including a long flexible robot that is formed by connecting a plurality of units and bendable at each unit with a desired curvature, and a posture actuator that adjusts a posture of the unit includes a target posture specifying unit that specifies a target posture including positions of representative points of the respective units traveling along a predetermined route, and an operation amount determination unit that determines an operation amount for bringing the unit to the target posture using a learning model with the target posture of the unit as an input and an operation amount of the posture actuator as an output.

Abstract: Provided is a method for producing a lithium-containing solution that allows increasing a content rate of lithium in a solution after an eluting step, and suppressing an amount of an eluted solution used in a process after the eluting step, thus suppressing production cost of lithium. A method for producing a lithium-containing solution includes an adsorption step of bringing a lithium adsorbent obtained from lithium manganese oxide in contact with a low lithium-containing solution to obtain post-adsorption lithium manganese oxide, an eluting step of bringing the post-adsorption lithium manganese oxide in contact with an acid-containing solution to obtain an eluted solution, and a manganese oxidation step of oxidating manganese to obtain a lithium-containing solution with a suppressed manganese concentration. The adsorption step, the eluting step, and the manganese oxidation step are performed in this order, and the acid-containing solution includes the eluted solution with acid added.

Abstract: An alloy treatment method is provided, in which a solution containing nickel and/or cobalt is obtained from an alloy containing nickel and/or cobalt and also containing copper and zinc, the method comprising: a leaching step for subjecting the alloy to a leaching treatment with an acid under the condition where a sulfating agent is present to produce a leachate; a reduction step for subjecting the leachate to a reduction treatment using a reducing agent to produce a reduced solution; an oxidation/neutralization step for adding an oxidizing agent and a neutralizing agent to the reduced solution to produce a neutralized solution containing nickel and/or cobalt and also containing zinc; and a solvent extraction step for subjecting the neutralized solution to a solvent extraction procedure using an acidic phosphorus compound-based extractant to produce a solution containing nickel and/or cobalt.

Abstract: The present invention is a method for treating an alloy, by which a solution that contains nickel and/or cobalt is obtained from an alloy that contains copper, zinc, and nickel and/or cobalt, said method comprising: a leaching process wherein a leachate is obtained by subjecting the alloy to a leaching treatment by means of an acid in the coexistence of a sulfurizing agent; a reduction process wherein the leachate is subjected to a reduction treatment with use of a reducing agent; and an ion exchanging process wherein a solution that contains nickel and/or cobalt is obtained by bringing a solution, which has been obtained in the reduction process, into contact with an amino phosphoric acid-based chelate resin, thereby having zinc adsorbed on the amino phosphoric acid-based chelate resin.

Abstract: A shockwave supply device includes: a shockwave generating unit configured to generate a shockwave; a shockwave emitting unit configured to emit the shockwave; a conduit that is bendable and is provided at a part of a flow path of the shockwave from the shockwave generating unit to the shockwave emitting unit; a plurality of outer shell tubes provided outward in a radial direction of the conduit and provided along an axial direction of the conduit; and a coupling portion with which adjacent ones of the outer shell tubes are coupled to be rotatable with respect to each other about a vertical axis.

Abstract: A machining position correcting device is configured to be applied to an electrochemical machining device configured to make an electrolyte flow out of a distal end part of an electrode bar extending along an axis while rotating the electrode bar about the axis to electrochemically machine a material to be machined in a range from the distal end part of the electrode bar. The machining position correcting device includes a position detector configured to detect a rotational position of a feature point of the electrode bar.

Abstract: This inspection tube drive control device is provided with: an inverse analysis unit (83) which performs an analysis to move a flexible tube along a predetermined route within an object being inspected, from a start point to a target point of the route; and a forward analysis unit (84) which, on the basis of analysis results from the inverse analysis unit (83), acquires, as analysis operation amounts, operation amounts for an attitude actuator capable of adjusting the attitude of the tube when the tube is positioned at each position on the route, and an advancing and retreating actuator which causes the tube to advance and retreat.

Abstract: A rotary electric machine includes an armature unit including an annular rotor configured to be rotatable around an axis and a stator disposed on a radially outer side of the annular rotor; an input or output shaft coupled at a first end thereof to an external device and extending along an axial direction of the annular rotor in a central space defined in a central portion of the annular rotor; and a coupling device disposed closer to a second end of the input or output shaft than an end of the annular rotor adjacent to the external device in the axial direction of the annular rotor and connecting the input or output shaft and the annular rotor so as to be able to transmit a torque.

Abstract: A rotary electric machine includes an armature unit including an annular rotor configured to be rotatable around an axis and a stator disposed on a radially outer side of the rotor; an input/output shaft coupled at a first end to an external device and extending along an axial direction of the rotor in a central space formed in a central portion of the rotor; and a coupling device disposed closer to a second end of the input/output shaft than an end of the rotor adjacent to the external device is in the axial direction and connecting the input/output shaft and the rotor so as to be able to transmit a torque.

Abstract: A water-flow power generating apparatus includes a blade, a rotary part, a power generating unit, a nacelle, and a bearing unit. The blade rotates with power of a water flow. The rotary part is connected to the blade and rotates integrally with the blade. The power generating unit is connected to the rotary part and generates electricity with a rotation force of the rotary part. The nacelle covers the power generating unit, forms a boundary between an inner space in which the power generating unit is disposed and an underwater in which the blade is disposed. The bearing unit supports the rotary part. The bearing unit includes a thrust bearing disposed in the inner space and supporting the rotary part from an axial direction of the rotary part, and a journal bearing disposed between the nacelle and the blade and supporting the rotary part from a radial direction.

Abstract: This hydraulic oil tank, which is disposed inside a pod of a power generation system, stores hydraulic oil, wherein the hydraulic oil tank is provided with: a rubber bag for use during oil temperature increases, the rubber bag being attached to a tank wall surface from the inner side, having a first internal space communicated with the exterior through an opening passing through the wall surface, and partitioning the first internal space and the wall surface interior in an elastic manner; and a rubber bag for use during oil temperature decreases, the rubber bag being attached to the wall surface from the outer side, having a second internal space communicated with the wall surface interior through an opening passing through the wall surface, and partitioning the second internal space and the wall surface interior in an elastic manner.

Abstract: The present invention provides a hydraulic drive train including a check valve provided in a return oil passage disposed between a branching position of a first branching oil passage and a branching position of a second branching oil passage, wherein at the time of starting of startup of the hydraulic drive train, the switching valve is closed, the opening degree of the flow rate adjusting valve is set to the initial opening degree, the on-off valve is opened, the boost pump is driven by the drive motor, and the hydraulic oil is supplied to the hydraulic pump, thereby assisting the rotational speed of the vanes by the hydraulic oil.

Abstract: Provided is an underwater floating-type ocean current power generation device whereby cyclical directional vibration of a floating body of the ocean current power generation device, caused by shadow moment, can be suppressed. An underwater floating type ocean current power generation device includes ocean current power generation device main bodies, each including a rotor of a power generator housed in a nacelle, and a structure. The rotor is configured to be driven by a rotary blade protruding outward from the nacelle. A twin drum floating body capable of floating underwater is constituted by the structure and the ocean current power generation device main bodies joined to the left and right of the structure. The underwater floating type ocean current power generation device is moored to an ocean floor by a mooring rope.

Abstract: A water-flow power generating apparatus includes a blade, a rotary part, a power generating unit, a nacelle, and a bearing unit. The blade rotates with power of a water flow. The rotary part is connected to the blade and rotates integrally with the blade. The power generating unit is connected to the rotary part and generates electricity with a rotation force of the rotary part. The nacelle covers the power generating unit, forms a boundary between an inner space in which the power generating unit is disposed and an underwater in which the blade is disposed. The bearing unit supports the rotary part. The bearing unit includes a thrust bearing disposed in the inner space and supporting the rotary part from an axial direction of the rotary part, and a journal bearing disposed between the nacelle and the blade and supporting the rotary part from a radial direction.

Abstract: An ocean current electric power generator includes a mechanical brake that restricts a rotation of a rotor shaft of a rotatable wing, and a power transmission mechanism that is disposed between the rotor shaft and an electric power generator. The power transmission mechanism includes a switching section that switches between a power transmission state and a power disconnection state, a load application section that applies a rotation load on the rotor shaft during the power disconnection state, and a speed varying section that varies a revolution speed of the rotor shaft, and transmits the revolution to the electric power generator during the power transmission state.

Abstract: A machining position correcting device is applied to an electrochemical machining device that makes an electrolyte flow out of a distal end part of an electrode bar extending along an axis while rotating the electrode bar about the axis to electrochemically machine a material to be machined in a region from the distal end part of the electrode bar. The machining position correcting device includes a position detector configured to detect a rotational position of a feature point provided to the electrode bar.

Abstract: The present invention provides a hydraulic drive train including a check valve provided in a return oil passage disposed between a branching position of a first branching oil passage and a branching position of a second branching oil passage, wherein at the time of starting of startup of the hydraulic drive train, the switching valve is closed, the opening degree of the flow rate adjusting valve is set to the initial opening degree, the on-off valve is opened, the boost pump is driven by the drive motor, and the hydraulic oil is supplied to the hydraulic pump, thereby assisting the rotational speed of the vanes by the hydraulic oil.

Abstract: A water flow power generator includes a nacelle, a vane wheel that is disposed so as to be rotatable relative to the nacelle, and that is rotated by a water flow while including a plurality of blades, a power generator that is disposed inside the nacelle, and that generates electric power by using rotating power transmitted from the vane wheel, and a vane wheel rotation stopping mechanism that is disposed in the nacelle, that includes a rod which can enter the inside of a rotational trajectory of the vane wheel, and that stops the rotation of the vane wheel.