Sludge dehydrating system and method thereof based on thermal hydrolysis technology

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United States of America Patent

PATENT NO 9926216
SERIAL NO

14917013

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Abstract

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A sludge dehydrating system and a method thereof based on a thermal hydrolysis technology include: a homogeneous slurry unit, a hydrothermal unit, a flash reactor, a waste heat recovery unit, and a dehydrator; wherein a viscosity of sludge is lowered by homogenously slurrying before entering a pump, which is conducive to transportation; a sludge tank firstly crashes and then quantitatively transports for improving a homogenizing efficiency; a diluent is sludge dehydrated filtrate which is mixed with flash steam in an ejector, wherein an mixing efficiency is high; during homogenously slurrying, waste steam generated is added into a sludge diluent pipe for being absorbed; a hydrothermal unit include a variety of forms such as an intermittent form and a continuous form, in such a manner that reaction parameters, especially reaction time are effectively guaranteed; the flash steam enters the homogeneous slurry unit for heating the sludge.

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Patent Owner(s)

Patent OwnerAddress
XI'AN JIAOTONG UNIVERSITYBEILIN DISTRICT XIANNING WEST ROAD 710049 SHAANXI CITY OF XI'AN PROVINCE NO 28 XI'AN CITY SHAANXI PROVINCE 710049

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Qian, Lili Shaanxi, CN 3 1
Sun, Panpan Shaanxi, CN 6 5
Tang, Xingying Shaanxi, CN 7 16
Wang, Shuzhong Shaanxi, CN 20 54

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