Mitsubishi Heavy Industries Limited

Mitsubishi Hitachi Power Systems, Ltd.

Satoshi Tsuzuki

Tadaaki Tanii

Takeo Kamimura

Ken Onishi

Kenji Nishikawa

Ikuo Wakamoto

Masaaki Kurokawa

Takumi Hori

Atsushi Sugiura

Takahiko Hirai

Noriaki Shimonabe

Shiro Honnmura

Reizou Miyauchi

Osamu Hasegawa

Kenichi Arase

Shuji Mizokami

Shigetoshi Shiotani

Shiro Honmura

Kiyonori Nishida

Kenji Sasaki

Naohiko Yoshida

Masakazu Yabuki

Hirohito Takeda

An opening and closing device that opens and closes an access port opened from a substantially cylindrical working platform disposed inside a reactor vessel and used to access a nozzle stub of the reactor vessel from the inside of the working platform, the opening and closing device includes: a cover that is slidable along an outer peripheral surface or an inner peripheral surface of the working platform from a closing position where the access port is closed to an opening position where the access port is opened; and moving device for sliding the cover.

Opening and closing device for access port that opens to working platform of reactor vessel

A reactor vessel that performs work inside a nozzle stub of the reactor vessel, including a platform unit that is provided at an upper portion inside the reactor vessel and includes a substantially cylindrical side wall portion and a bottom portion blocking the lower end of the side wall portion; an access window that is provided at the side wall portion of the platform unit an access window moving device that opens and closes the access window; a working device; and a control device that is provided at the outside of the reactor vessel and controls the access window moving device and the working device, wherein the control device drives the access window moving device to open the access window, drives the working device to perform work inside the nozzle stub, and then drives the access window moving device to close the access window after the performance of the work.

Nozzle stub working system for reactor vessel

Provided is a tail cylinder attaching and detaching fixture that attaches and detaches a tail cylinder to and from a casing, the tail cylinder being included in a combustor inserted into the casing so that the front end is connected to an inlet portion of a combustion gas passageway, the tail cylinder attaching and detaching fixture including: a guide portion of which the front end is disposed inside the casing and the front end and the base end are respectively supported by the casing and which supports the tail cylinder so as to be movable in the axial direction of the combustor; and an advancing and retracting mechanism that advances and retracts the tail cylinder in the axial direction.

Mounting/dismounting jig for combustor tail pipe and tail pipe installation method

A method and an apparatus for classifying and recovering the main components of used batteries, particularly, a method and an apparatus by which the batteries are conveyed on a conveyor while an alternating magnetic field of a plurality of frequencies is applied to each and a detection means detects what sort of induced magnetic field has resulted from the eddy current induced in the battery. The orthogonal components in the change of the induced magnetic field are detected; the relationship between these orthogonal components and the frequencies are compared with the database of the same which is previously obtained, and the batteries are sorted according to their classification and size. This method can sort large amounts of used batteries continuously. In this invention, the battery will be drawn down into the detection region either magnetically or mechanically while the stable transport of the battery is achieved. The method and apparatus of the invention enable continuous bulk sorting of batteries, assure a smooth feed, and improve the accuracy with which the induced magnetic field generated in the battery is detected.

Method and apparatus for classifying and recovering the main components of used batteries

This invention provides a safe and efficient method of dismantling used lithium ion batteries. More specifically, the plastic cases which protect sealed battery cells are removed from the system in a stable and reliable fashion. Valuable materials such as lithium cobalt oxide, an oxide of a lithium-transition metal compound, aluminum and copper must be separated and recovered. The invention is distinguished by the fact that it entails the following processes. In the crushing process, the batteries are chilled to a temperature of &minus;50&deg; C. or lower. In this state they are repeatedly subjected to vibration and pressure by a number of objects whose rigidity and specific gravity are greater than those of the plastic. In this way the batteries are separated into sealed battery cells and plastic cases. In the heating process, the sealed battery cells separated in the process are heated to a temperature of at least 200&deg; C. in a non-oxidizing atmosphere to separate mainly the organic materials. Finally, in one or more separation processes, the useless materials are removed and the targeted valuable materials are separated in a sequential fashion from the crushed fragments produced in the crushing process.

Method for crushing cell

Growing community of inventors

Hiroshima, Japan

Satoshi Tsuzuki