APPARATUS AND METHOD FOR REDUCING WATER CONTENT OF DEHYDRATED CAKE

Japanese Patent JP2015208707

A

PROBLEM TO BE SOLVED: To provide an apparatus and a method for reducing the water content of dehydrated cake, in each of which the water content of the dehydrated cake, that is obtained by dehydrating the excess sludge generated in flocculation precipitation treatment by a dehydrator and discharged from the dehydrator, can be reduced easily and at a low cost.SOLUTION: An apparatus for reducing water content of dehydrated cake includes: a conveyor for conveying the dehydrated cake; a cylindrical windshield cover for covering the conveyor; and a fan which is arranged in the vicinity of the inlet end of the cylindrical windshield cover and used for sending air to the dehydrated cake. The conveyor is constituted so that the residence time of the dehydrated cake to be conveyed becomes 45-90 minutes. The fan is constituted so that the air to be sent to the dehydrated cake flows in the windshield cover from the inlet end thereof to the outlet end at 2 m/sec or higher wind speed at room temperature and a reduced ratio of the water content of the dehydrated cake becomes 15% or higher before and after air is sent to the dehydrated cake.

YAMASHITA SHUJI
MORI NORIYUKI
HIRONAKA YUKI
TANIGUCHI SHIGEO

JP2014091131A

November 24, 2015

April 25, 2014

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NIPPON STEEL & SUMITOMO METAL CORP
NIPPON STEEL & SUMIKIN ECO TECH CORP

C02F11/12; F26B17/04

JP2009101276A	2009-05-14
JP2005103397A	2005-04-21
JPH07308698A	1995-11-28
JP2004293831A	2004-10-21
JP2008534707A	2008-08-28
JP2005037096A	2005-02-10
JP2002147953A	2002-05-22
JP2000005799A	2000-01-11
JP2006341168A	2006-12-21
JPH02227199A	1990-09-10
JPS5988388A	1984-05-22

Toshieko Kondo
Chongqing Sugano
Takeshi Higuchi
Tatsuya Yamada
Kaoru Okada

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