公开(公告)号：US20220314233A1

公开(公告)日：2022-10-06

申请号：US17657004

申请日：2022-03-29

Applicant: China University of Mining and Technology

Inventor： Enhui Zhou ,  Yuemin Zhao ,  Liang Dong ,  Chenlong Duan ,  Yongxin Ren ,  Nan Zhou

IPC: B03B9/00 ,  B03B5/34 ,  B03B5/44 ,  B03B7/00 ,  B03B13/00

Abstract: The present disclosure relates to the field of mineral processing and separation, and in particular, to an underground coal hypergravity field separation system and a separation process. The separation system includes a grading hydrocyclone group, hypergravity field separators, feeding pumps, and conveying pumps. Coal collected underground is graded through a grading hydrocyclone first, then is fed into the hypergravity field separators for separation, and finally, is conveyed to a next link for dehydration through the conveying pumps. The separation system of the present disclosure has less supporting equipment, small floor area, and no complex pipeline, and is suitable for a downhole operation. In addition, the hypergravity field separators can provide a high-strength centrifugal acceleration, which can realize rapid separation of coal gangue particles in a radial direction and a tangential direction, and realize effective separation of fine coal gangue particles.