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:
Dec. 29, 2020
Filed:
Dec. 12, 2017
China University of Mining and Technology, Jiangsu, CN;
Xuzhou Zhirun Mining Equipment Science and Technology Co., Ltd., Jiangsu, CN;
Bo Zhang, Jiangsu, CN;
Yuemin Zhao, Jiangsu, CN;
Chenyang Zhou, Jiangsu, CN;
Xuchen Fan, Jiangsu, CN;
Chenlong Duan, Jiangsu, CN;
Liang Dong, Jiangsu, CN;
Jingfeng He, Jiangsu, CN;
China University of Mining and Technology, Jiangsu, CN;
Abstract
A modular quality improvement process and quality improvement system for high density coal measures oil shale. The process comprises: performing separation on the material with a particle size larger than 13 mm by an air dense medium fluidized bed, performing separation on the material with a particle size equal to or less than 13 mm and larger than 6 mm by an air dense medium fluidized bed, performing separation on the material with a particle size equal to or less than 6 mm and larger than 3 mm by a vibrated dense medium fluidized bed, and performing separation on the material with a particle size equal to or less than 3 mm by a vibrated fluidized bed, and recovery of a medium by magnetic separation for use as a circulating medium.