公开(公告)号：US20210276018A1

公开(公告)日：2021-09-09

申请号：US17191935

申请日：2021-03-04

Applicant: China University of Mining and Technology

Inventor： Bo Zhang ,  Chenlong Duan ,  Enhui Zhou ,  Guanghui Yan ,  Zengqiang Chen ,  Zhenfu Luo ,  Zhenxing Zhang ,  Guangqing Zhu

IPC: B03B9/02 ,  B07B1/46 ,  B03C1/30 ,  B03B5/34

Abstract: Embodiments of the present disclosure provide a pressurized two-product dense-medium separation process for oil shale, and belongs to the field of oil shale industry, in particular to the processing and utilization of oil shale. This process includes: pre-screening a raw oil shale ore through a 25 mm screen; crushing an oversize product, mixing with an undersize product, and separating by a pressurized two-product dense-medium cyclone; and subjecting an underflow and an overflow of the pressurized two-product dense-medium cyclone to dewatering and medium draining respectively to obtain a concentrate and a tailing. The present disclosure has a simple process flow, high separation efficiency and low energy consumption and can reduce the cost of oil refining and achieve better economic benefits.

公开(公告)号：US09964357B2

公开(公告)日：2018-05-08

申请号：US14780688

申请日：2013-07-26

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Yuemin Zhao ,  Xuliang Yang ,  Pengfei Zhao ,  Zhenfu Luo ,  Zengqiang Chen ,  Chenlong Duan ,  Shulei Song

IPC: F26B3/092 ,  B03B4/02

CPC classification number: F26B3/0923 ,  B03B4/02

Abstract: Drying and separation vibrating fluidized bed for processing wet coal by high-temperature hot air. Wet coal is fed into a vibrating separation chamber connected to a hot air supply duct. The wet coal is vibrated as it is dried and is layered as heat and mass transfer occur between the high-temperature air and the wet coal particles. Hot air enters the bottom of separation chamber through a distribution plate that includes asbestos fiber cloth sandwiched between clamping plates. The wet coal is fed through a feeding distribution device that separates the coal pieces as they enter the separation chamber. After the coal is dried and layered, the heavy and light material exits the separation chamber through two discharge impellers.