The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2018
Filed:
Sep. 25, 2013
Dongfang Electric Corporation, Chengdu, Sichuan, CN;
Liyong Cao, Sichuan, CN;
Wei Fan, Sichuan, CN;
Qi Du, Sichuan, CN;
Pan Guo, Sichuan, CN;
Zhengning Liu, Sichuan, CN;
Yuan Zhang, Sichuan, CN;
Chunfei Zhang, Sichuan, CN;
Jiang Liu, Sichuan, CN;
Chunyun Hu, Sichuan, CN;
Xiaoguang Zhang, Sichuan, CN;
Yu Lei, Sichuan, CN;
Abstract
A dual-bed system for preventing a boiler heating surface from being contaminated 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 the upper lateral side of the fluidized bed; the inlet end of the coal ash distributor; the two outlets of the coal ash distributor are respectively connected with the inlet of the return feeder and the inlet of the ash-coal mixer; the outlet of the ash-coal mixer is connected with the inlet of the lower pyrolysis bed; 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 on the lower lateral side of the fluidized bed.