Mitsubishi Hitachi Power Systems, Ltd.

Mitsubishi Heavy Industries Limited

Yasuo Soda

Yoshinori Koyama

Yasunari Shibata

Haruto Shinoda

Takashi Yamamoto

Koji Nishimura

Katsuhiko Yokohama

Junichiro Yamamoto

Yasuyuki Miyata

Naoto Nakayama

This powder transport device comprises: transport pipe () that can transport powder by way of gravity by having a prescribed angle of inclination; a porous plate () that is disposed along the transport pipe () so as to divide a line cross section into a top section and bottom section and form a powder line () in the top section; an inert gas supply line for fluidization () that is provided under the porous plate () and supplies an assist gas (g) to the powder line () through the porous plate (); and a deposit status monitoring device () that constantly monitors the state of the powder deposited on the top face side of the porous plate () in the powder line ().

Powder transport device and char recovery device

Provided are a char feeding hopper that makes it possible to accurately measure char, a char recovery system, and a coal gasification combined power generation system. The char feeding hopper comprises: a char feeding hopper body that feeds separated char to a coal gasifier side; at least two casing tubes () that are inserted from a side wall of the char feeding hopper body and that are provided so as to be aligned with one another in the vertical axis direction; a radiation source section () that is provided within the casing tube () and that emits &#x3b3;-rays within the char feeding hopper body; and a &#x3b3;-ray detector that is provided within the casing tube () and that detects emitted &#x3b3;-rays. The cross-section of each casing tube () has a shape that is provided with a tapered section () having an apex angle on the upper edge thereof.

Char feeding hopper, char recovery system, and coal gasification combined power generation system

A powder conveyance device and a char recovery apparatus are each provided with: an inclination part serving as a powder discharge line which can convey char at a predetermined tilt angle by allowing the char to fall by gravity; a first porous plate having a predetermined opening ratio and being disposed along the inclination part; a second porous plate having a higher opening ratio than the first porous plate and being disposed along the inclination part at a position above the first porous plate; and an assist gas feed device for feeding assist gas to the inclination part through both the first porous plate and the second porous plate.

Powder conveyance device and char recovery apparatus

An ignition torch that can easily be inspected regardless of the state inside a gasification furnace. The ignition torch () extends from an outside of a gasification furnace () to an inside of the gasification furnace () so as to receive feed of fuel and combustion air from one end positioned outside of the gasification furnace () and to feed flames to the other end positioned in the inside of the gasification furnace (). An opening/closing valve () is provided downstream in a fuel flow direction from an ignition section () provided at the outside of the gasification furnace (). A flame-holding section () is provided on the other end of the ignition torch (). Supporting fuel is supplied to the flame-holding section ().

Ignition torch and pressurized gasification furnace including the same

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Tokyo, Japan

Yasuo Soda