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Patent Searching and Data


Title:
流動床炉の火床から除去する材料を冷却するための方法と装置
Document Type and Number:
Japanese Patent JP2007500333
Kind Code:
A
Abstract:
The invention relates to a method and an apparatus for cooling a material to be removed from the grate of a fluidized bed furnace. Material at a high temperature is passed from the grate of the fluidized bed furnace into a fluidized bed cooler in charges of a given size by measuring the quantity of the material accumulating in the fluidized bed cooler. When the quantity of the material in the cooler has reached a predetermined limit value, the supply of material into the fluidized bed cooler is prevented. The charge is cooled in the fluidized bed cooler by fluidization air and via heat transfer into a cooling liquid circulation system and the temperature of the charge is measured. The charge is removed when the temperature of the charge has fallen to a predetermined limit value. The second end ( 5 ) of a supply conduit ( 3 ) is provided with a supply valve ( 15 ) actuated by a power means ( 16 ). A discharge conduit ( 14 ) is provided with a discharge valve ( 17 ) actuated by a second power means ( 18 ). Quantity detection means ( 19, 20 ) are provided to produce quantity data regarding the amount of material in a fluidized bed space ( 11 ), and temperature measuring means ( 21 ) are provided to produce temperature data. A control device ( 22 ) controls the first power means ( 16 ) to open and close the supply valve ( 15 ) and the second power means ( 18 ) to open and close the discharge valve ( 17 ) on the basis of the quantity data and temperature data and the predetermined limit values of quantity and temperature so that the loading of material into the fluidized bed space and its cooling and removal from the fluidized bed space take place in a charge-by-charge and cyclic manner.

Inventors:
Nieberg, Jens
Carto Salo, Besa
Sheila, Heikki
Perrati, Heikki
Application Number:
JP2006521599A
Publication Date:
January 11, 2007
Filing Date:
July 14, 2004
Export Citation:
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Assignee:
Outokumpu Technology Osamu Yuichia
International Classes:
F27B15/09; C10J3/52; C22B19/02; F22B31/00; F23C10/24; F27B15/16; F27B15/18; F27B15/20; F27D9/00; F27D15/02; F27D19/00
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinozaki Masami
Masaya Nishiyama