Ube Industries, Inc.

Hideaki Takahashi

Yasumasa Idei

Sadahiko Maeda

Masahiro Nishida

A two fluidized bed type boiler comprises: an upstream combustion zone forming a fluidized bed of sand in which pulverized coal is burnt with air fed as a fluidizing gas; a downstream desulfurizing zone forming a fluidized bed of particulate limestone with flue gases stemming from the combustion zone as fluidizing gases; and an intermediate dust collecting zone, in which a baffle plate facing the combustion zone and extending downwards is provided, is arranged between the upstream and downstream zones to form a single and unitary passage for a flow of the flue gases over the three zones.

Growing community of inventors

Ube, Japan

Hideaki Takahashi