Modular quality improvement process and quality improvement system for high density coal measures oil shale

US10875055B2 · kind B2 · utility

Assignee

• China University of Mining and Technology · CN

Inventors

• Bo Zhang · 安丰镇, CN
• Yuemin Zhao · 安丰镇, CN
• Chenyang Zhou · Mountain View, US
• Xuchen Fan · Chongqing, CN
• Chenlong Duan · 安丰镇, CN
• Liang Dong · Shanghai, CN
• Jingfeng He · 安丰镇, CN

Key dates

• Filing date: Dec 12, 2017
• Grant date: Dec 29, 2020
• Expiry date: May 31, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B07B2230/01
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

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.