Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SLUDGE CO-PROCESSING INTEGRATED SYSTEM AND METHOD BASED ON HOT AIR CIRCULATION IN COAL-FIRED POWER STATION
Document Type and Number:
WIPO Patent Application WO/2021/212786
Kind Code:
A1
Abstract:
The present invention provides a sludge co-processing integrated system and method based on hot air circulation in a coal-fired power station. The system comprises a boiler tail flue air preheater and drying equipment. The boiler tail flue air preheater is provided with an air inlet and a flue gas inlet. The flue gas inlet is connected to a flue gas outlet of a coal-fired power station boiler. An air outlet of the boiler tail flue air preheater is separately connected to an inlet of a boiler furnace of the coal-fired power station boiler, and a fluidizing hot air inlet of the drying equipment. The drying equipment is provided with a wet sludge inlet, a steam inlet, and a dry sludge outlet. According to the present invention, the hot air of a boiler is used as a power source and an auxiliary heat source, and a heat steam is used as a main heat source to dry the wet sludge. The heat transfer disturbance effect can be increased, the heat transfer efficiency is improved, and the consumption rate of the stream of the drying equipment is reduced.

Inventors:
ZHANG MAOLONG (CN)
LV HAISHENG (CN)
SONG RUN (CN)
GUO TAO (CN)
LIU GUANJIE (CN)
ZHANG QING (CN)
Application Number:
PCT/CN2020/122975
Publication Date:
October 28, 2021
Filing Date:
October 22, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HUANENG POWER INT INC (CN)
HUANENG CLEAN ENERGY RES INST (CN)
International Classes:
C02F11/13; F23L15/00; F26B21/00
Foreign References:
CN111393009A2020-07-10
CN102531324A2012-07-04
CN108658417A2018-10-16
DE3731720A11989-04-06
CN105157371A2015-12-16
CN204404213U2015-06-17
US20120117816A12012-05-17
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
Download PDF: