Mitsubishi Hitachi Power Systems, Ltd.

Mitsubishi Power, Ltd.

Yoshiaki Arakawa

Yoshinori Koyama

Yasunari Shibata

Masashi Kitada

Atsushi Yuasa

Haruto Shinoda

Yasuyuki Miyata

Kazuaki Hashiguchi

Keiji Takeno

Takahiro Jojima

Hideta Ogawa

Tatsuya Kume

Shogo Sawa

An object is to curb damage localized in a slag capturing portion caused when slag passes therethrough. A slag discharge device includes: a screen mesh () that is a porous member including a plurality of through-holes () formed therein; and a crushing device () that crushes water-granulated slag (S) captured by the screen mesh (). The crushing device has a crusher head () that breaks, with a pressure, and thus crushes the water-granulated slag (S), a hydraulic cylinder () that reciprocates the crusher head in a predetermined direction, a guide plate () that restricts movement of the crusher head caused by the hydraulic cylinder, and a plurality of crushing spaces () in which the water-granulated slag (S) is crushed. A communication opening that causes the crushing spaces () to communicate with each other is formed in a partitioning wall guide plate () of the guide plate.

Slag discharge device, gasifier furnace and integrated gasification combined cycle, and slag discharge method

A combustion burner for a boiler includes: an inner cylinder defining a fuel supply passage for supplying fuel; an outer cylinder surrounding the inner cylinder and defining an air supply passage between the inner cylinder and the outer cylinder; and a swirler in the air supply passage, the swirler being configured to swirl air in the air supply passage. The swirler includes a plurality of blades radially disposed between the inner cylinder and the outer cylinder, the plurality of blades extending from an air-supply side toward a combustion-space side of the air supply passage, and each of the plurality of blades having, at least on an inner cylinder side of the blade, a section with a thickness varied in a burner axial direction, the thickness being smaller at an edge portion on the combustion-space side than at a maximum-thickness section of the blade.

Combustion burner for boiler

Growing community of inventors

Tokyo, Japan

Yoshiaki Arakawa