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. 19, 2019
Filed:
Dec. 30, 2014
Institute of Process Engineering, Chinese Academy of Science, Beijing, CN;
Beijing Zhongkaihongde Technology Co., Ltd., Beijing, CN;
Qingshan Zhu, Beijing, CN;
Chuanlin Fan, Beijing, CN;
Hongzhong Li, Beijing, CN;
Zhaohui Xie, Beijing, CN;
Wenheng Mu, Beijing, CN;
Cunhu Wang, Beijing, CN;
Xingang Jiao, Beijing, CN;
INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES, Beijing, CN;
BEJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
A system for fluidized bed reduction of powdered iron ore. Use of high-gas-velocity processing accelerates iron ore reduction speed and greatly improves the gas-treatment capabilities of a unit-cross-sectional fluidized bed. Use of parallel connections involving reduced coal gas lessens the volume of gas passing through a single-stage fluidized bed. Use of serial/parallel-connection processing involving reduced coal gas increases the coal gas utilization rate. The invention achieves the highly-effective reduction of powdered iron ore in a fluidized bed under near-atmospheric pressure. A reduction method based on the present system is also disclosed.