Mitsubishi Jukogyo Kabushiki Kaisha

Takaharu Toyoda

Yoshinori Kobayashi

Kimishiro Tokuda

Fumiya Nakashima

Toshiyuki Takegawa

Keisuke Sonoda

An improvement of a coal firing device applied to coal gasifiers, boilers for power generation, etc. On the inner walls of a ceiling portion (4) of a firing furnace (3) and of a throat portion (2) thereabove, and of a diffuser portion (6) further thereabove, where necessary, plate-like vortex breaker(s) (1A, 1B) is/are provided. Vortex flow of gas in the vicinity of the inner wall surface around the throat portion (2) is thereby weakened and molten slag sticking on the wall surface is suppressed to be pushed up by the gas. There occurs neither staying of molten slag at the diffuser portion (6) nor scattering of slag, and blockade of furnace due to solid-phase slag does not occur.

Growing community of inventors

Tokyo, Japan

Takaharu Toyoda