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Patent Searching and Data


Title:
METHOD OF DRYING SLUDGE AND DEVICE FOR IMPLEMENTING THE METHOD
Document Type and Number:
WIPO Patent Application WO2007122328
Kind Code:
A8
Abstract:
The present invention relates to a method and a device for drying sludge, characterized in that the sludge drying method comprises: a step of pressurizing a sealed chamber (1) to a defined pressure at least by injecting saturated steam and of maintaining this pressure for a defined time; a step of charging the inside of a tank, away from the walls of the chamber (1), with the sludge using charging means, while maintaining the pressure; a step of injecting superheated steam into the sludge (5) via a mixer (3) acting close to the wall of the tank furthest away from the microwave source, comprising injection means (33); a step of heating the core of the sludge (5) by microwave emission in frequencies between 400 and 2450 MHz towards the tank, this step being carried out while mixing the sludge (5); and a step of removing the water collected by condensation from the walls of the chamber and by said water trickling down the walls towards the bottom of the chamber (1) via a valve (6) communicating with the outside.

Inventors:
DEDIEU BERNARD (FR)
Application Number:
FR2007000671W
Publication Date:
December 18, 2008
Filing Date:
April 20, 2007
Export Citation:
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Assignee:
BEARN INNOVATION - DEDIEU BERNARD
SARL INNOPARTS
BARBOSA, ARTHUR
DEDIEU, BERNARD
International Classes:
F26B3/347; F26B7/00; F26B11/12
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