A DRYER AND A METHOD AND AN EQUIPMENT FOR DRYING AND INCINERATING WET SLUDGE USING CIRCULATING FLUIDIZED BED WITH THE DRYER

WIPO Patent Application WO/2007/006218

A1

The present invention provides a dryer and a method and equipment for drying and incinerating wet sludge using circulating fluidized bed with the dryer. Hot ash and wet sludge are fed into the dryer together. The wet sludge in the fluidized state exchanges heat with the hot ash directly and is heated sufficiently by the hot ash in the dryer. Thereby the drying and incinerating of the wet sludge are finished in one single equipment. After dried in the dryer the wet sludge is returned to the incinerator chamber with the circulation ash. A great deal of water contained in the wet sludge does not go into the rear flue with the high temperature flue gas, it comes out with the fluidized gas in the dryer instead, thus the loss of the heat is reduced. After being dehumidified, the gas exhausting from the dryer is recycled as the fluidized gas or is sent to the incinerator chamber. No peculiar smell discharges in the process.

LU QINGGANG (CN)
NA YONGJIE (CN)
YUN XIAOYIN (CN)
GAO MING (CN)
SUN YUNKAI (CN)
HE JUN (CN)
BAO SHAOLIN (CN)
JIAO WEIHONG (CN)
MA RENXIONG (CN)
WANG DONGYU (CN)
YONG YUMEI (CN)

PCT/CN2006/001610

January 18, 2007

July 07, 2006

Click for automatic bibliography generation  

INST ENG THERMOPHYSICS CAS (CN)
LU QINGGANG (CN)
NA YONGJIE (CN)
YUN XIAOYIN (CN)
GAO MING (CN)
SUN YUNKAI (CN)
HE JUN (CN)
BAO SHAOLIN (CN)
JIAO WEIHONG (CN)
MA RENXIONG (CN)
WANG DONGYU (CN)
YONG YUMEI (CN)

F23G5/30; C02F11/10; F23G5/04; C02F11/13

US5365889A	1994-11-22
US5630366A	1997-05-20
US4628833A	1986-12-16
JP2001240879A	2001-09-04
CN1523266A	2004-08-25

CHINA SCIENCE PATENT & TRADEMARK AGENT LTD (Bldg. B Tsinghua Tongfang Hi-Tech Plaza, No. 1, Wangzhuang Rd, Haidian District Beijing 3, CN)

View/Download PDF      PDF Help

Previous Patent: METHOD OF INTER-SYSTEM HANDOVER

Next Patent: A METHOD FOR REALIZING MULTI-PARTY CALL