Pyrolysis-combustion dual-bed system for eliminating contamination by combustion of high-sodium coal

US9989247B2 · kind B2 · utility

Assignee

• DONGFANG ELECTRIC CORPORATION · CN

Inventors

• Liyong Cao · Chengdu, CN
• Qi Du · Sichuan, CN
• Wei Fan · Strongsville, US
• Zhengning Liu · Sichuan, CN
• Pan Guo · Beijing, CN
• Jiang Liu · Beijing, CN
• Yuan Zhang · Beijing, CN
• Chunfei Zhang · Sichuan, CN
• Chunyun Hu · Sichuan, CN
• Xiaoguang Zhang · Macungie, US
• Yu Lei · Belmont, US

Key dates

• Filing date: Sep 25, 2013
• Grant date: Jun 5, 2018
• Expiry date: Jul 17, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23J15/02
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A pyrolysis-combustion dual-bed system comprises a fluidized bed, a cyclone separator, a coal ash distributor, an ash-coal mixer, a lower pyrolysis bed, a return feeder and a cleaner, wherein the cyclone separator is connected with an upper lateral side of the fluidized bed, the outlet end of the cyclone separator is connected with the inlet end of the coal ash distributor; the two outlets of the lower pyrolysis bed are respectively connected with the inlet of an external bed and the inlet of the cleaner; the outlet of the external bed is connected with the inlet of the return feeder; the return feeder close to the lower lateral side of the fluidized bed is connected with the inlet on the lower lateral side of the fluidized bed; and the outlet of the cleaner is connected with the inlet of the lower lateral side of the fluidized bed.