FLUIDIZED BED DRYER, AND DRYING METHOD OF WET RAW MATERIAL BY FLUIDIZED BED DRYER

Title:

FLUIDIZED BED DRYER, AND DRYING METHOD OF WET RAW MATERIAL BY FLUIDIZED BED DRYER

Document Type and Number:

Japanese Patent JP2006292262

Kind Code:

A

Abstract:

To prevent clogging of a gas distribution plate of a fluidized bed dryer with a wet raw material put through a charging shoot.

In this fluidized dryer 3 adapted to charge the wet raw material through the charging shoot 8, browing high-temperature gas as a heat source-and-fluidizing gas from the lower side of the gas distribution plate 5 and forming a fluidized layer 9 on the gas distribution plate 5 to dry the wet raw material, a gas blow-in nozzle 13 is provided between a lower portion of the charging shoot 8 and the fluidized layer 9, and the gas is blown through the gas blow-in nozzle 13 to disperse the flow velocity of the wet raw material falling from the shoot 8. Otherwise, the flow velocity of the hot source-and-fluidizing gas to be blown from the lower side of the gas distribution plate 5 just under the shoot 8 is set higher than the flow velocity of the heat source-and-fluidizing gas to be blown from the lower side of the gas distribution plate 5 except just under the shoot 8.

Inventors:

KANEKO UNAI
FUJIKAWA ATSUSHI
KISHIGAMI KAZUTSUGU

Application Number:

JP2005112598A

Publication Date:

October 26, 2006

Filing Date:

April 08, 2005

Export Citation:

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Assignee:

NIPPON STEEL ENG CO LTD

International Classes:

F26B3/08; C10B57/10; F26B21/00; F26B21/12; F27B15/10; F27D3/16

Domestic Patent References:

JPS62127388A	1987-06-09
JP2001055582A	2001-02-27
JP2002309266A	2002-10-23
JPH07114954B2	1995-12-13
JPH0759709B2	1995-06-28
JP3037680B
JP2938029B1	1999-08-23
JP2002306944A	2002-10-22

Attorney, Agent or Firm:

Masu Kobori
Takato Tsutsumi

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