Invention Grant
- Patent Title: Process for reducing coal consumption in coal fired power plant with fluidized-bed drying
- Patent Title (中): 采用流化床干燥技术降低燃煤电厂煤耗的工艺
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Application No.: US13040016Application Date: 2011-03-03
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Publication No.: US08661821B2Publication Date: 2014-03-04
- Inventor: Xu Zhao , Maikui Zhang , Yan Dou , Yongzhong Jiang , Jinwen Shi
- Applicant: Xu Zhao , Maikui Zhang , Yan Dou , Yongzhong Jiang , Jinwen Shi
- Applicant Address: CN Xigu, Lanzhou, Gansu CN Xigu, Lanzhou, Gansu CN Xigu, Lanzhou, Gansu
- Assignee: Tianhua Institute of Chemical Machinery and Automation,National Engineering Technology Research Center of Drying Technology & Equipment,Lanzhou Ruide Drying Technology Co., Ltd.
- Current Assignee: Tianhua Institute of Chemical Machinery and Automation,National Engineering Technology Research Center of Drying Technology & Equipment,Lanzhou Ruide Drying Technology Co., Ltd.
- Current Assignee Address: CN Xigu, Lanzhou, Gansu CN Xigu, Lanzhou, Gansu CN Xigu, Lanzhou, Gansu
- Agency: Greer, Burns & Crain, Ltd.
- Priority: CN201010123252 20100309
- Main IPC: F01K7/34
- IPC: F01K7/34 ; B09B3/00

Abstract:
The present invention relates to a process for reducing coal consumption in coal fired plant with fluidized-bed drying, namely a fluidized-bed drying system is provided between a coal powder bunker as well as a weighing belt and a coal grinding mill of the prior coal fired boiler generating set, and superheated steam which has done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.
Public/Granted literature
- US20110220744A1 PROCESS FOR REDUCING COAL CONSUMPTION IN COAL FIRED POWER PLANT WITH FLUIDIZED-BED DRYING Public/Granted day:2011-09-15
Information query
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