Tsukishima Kikai Co., Ltd.

Sanki Engineering Co., Ltd.

Kazuyoshi Terakoshi

Takafumi Yamamoto

Kunihiko Koga

Toshiki Kobayashi

Tomokazu Suyama

Isamu Orito

Takamitsu Kanno

Yutaka Hirata

Ken Nakano

Yuki Asaoka

Is provided a method for starting up a pressurized fluidized bed incinerator system by which cracking of silica sand as a bed material can be prevented at low costs. By heating the silica sand as the bed material filled up in a bottom portion of a pressurized fluidized bed incinerator, a temperature of a freeboard of the incinerator is heated, and after the temperature of the freeboard is heated to 750 to 900&#xb0; C., a material to be treated having a water-containing organic substance is fed to the pressurized fluidized bed incinerator.

Method for starting up pressurized fluidized bed incinerator system

A method for efficiently conveying impurities in a pressurized fluidized incinerator system is provided. Cleaning gas is supplied to an upper valve, and thereafter, the upper valve is driven so as to communicate an upper discharge device and a tank. The upper discharge device is driven so as to convey the impurities from the dust collector to the tank, and thereafter, the upper discharge device is stopped and the upper valve is driven so as not to communicate the upper discharge device and the tank. Thereafter, the supply of the cleaning gas to the upper valve is stopped.

Method for conveying impurities in pressurized fluidized bed incinerator system

A pressurized incineration facility () includes: a pressurized incinerator () which incinerates a processing object (P) under a pressure increased by compressed air (A); a turbocharger () which produces the compressed air by being rotationally driven by combustion exhaust gas (G) of the pressurized incinerator; and a seal device () which jets seal gas (S) to a rear surface () of a turbine impeller () of the turbocharger.

Pressurized incineration facility and pressurized incineration method

Pressurized fluidized furnace equipment includes a fluidized bed furnace () that pressurizes combustion air (B) and combusts a material to be treated (A) while fluidizing the same; an air preheater () that exchanges heat between a combustion exhaust gas (C) discharged from the fluidized bed furnace () and the combustion air (B); a dust collector () that removes dust from the combustion exhaust gas (C); and first and second superchargers () to which the combustion exhaust gas (C), having undergone the heat exchange in the air preheater () and the dust removal in the dust collector (), is supplied to generate compressed air (D, E). The first compressed air (D) generated in the first supercharger () is supplied as the combustion air (B) to the fluidized bed furnace () by way of the air preheater (), and the second compressed air (E) generated in the second supercharger () is made to have a higher pressure than that of the first compressed air (D). Accordingly, it is possible to prevent the equipment from having more superchargers than is necessary for normal use although a plurality of first and second superchargers are provided, and to efficiently use the surplus combustion exhaust gas.

Pressurized fluidized furnace equipment

Growing community of inventors

Tokyo, Japan

Kazuyoshi Terakoshi