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. 18, 2025
Filed:
Oct. 31, 2024
China University of Mining and Technology, Xuzhou, CN;
Chaolin Zhang, Xuzhou, CN;
Enyuan Wang, Xuzhou, CN;
Xiaofei Liu, Xuzhou, CN;
Zhonghui Li, Xuzhou, CN;
Qiaozhen Jiang, Xuzhou, CN;
Mingliang Liu, Xuzhou, CN;
Peizhong Wang, Xuzhou, CN;
Wei Zeng, Xuzhou, CN;
China University of Mining and Technology, Xuzhou, CN;
Abstract
A fluidized coal mining method utilizing self-energy storage of a coal seam is provided, and includes developing a mine roadway, uncovering coal actively, mining coal in fluidization, and backfilling a goaf. Dynamic phenomenon is induced by uncovering the coal actively, a coal-mining drilling well is established from a ground to the coal seam, and the coal seam is subjected to hydraulic in-situ cutting, and a coal-rock mixture subjected to hydraulic cutting flows into a roadway system along a floor roadway, and then coal, gangue and water in the mixture are separated and recycled in a subsequent circulating coal mining process.