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:
Jun. 24, 2025
Filed:
Jul. 01, 2024
China University of Mining and Technology, Beijing, Beijing, CN;
Yifan Zeng, Beijing, CN;
Donghui Yang, Beijing, CN;
Qiang Wu, Beijing, CN;
Zilong Yuan, Beijing, CN;
Hao Li, Beijing, CN;
Junhao Ren, Beijing, CN;
Zeyang Liu, Beijing, CN;
Jia Zhao, Beijing, CN;
CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING, Beijing, CN;
Abstract
Disclosed are a coal mining system and a coal mining method. The coal mining system includes: a mechanical coal breaking module, an air lift reverse circulation module, a jet coal breaking module, and a coal-air-water separation module. The mechanical coal breaking module includes: a drill pipe rotating device, a drill pipe, and a reamer bit, sequentially connected to perform rotary cutting, drilling and slotting operations on a coal seam in a borehole. The air lift reverse circulation module includes: an air compressor and a dual-wall drill pipe. The air compressor is configured to transport a coal-air-water mixture through an inner pipeline of the dual-wall drill pipe to the coal-air-water separation module. The jet coal breaking module includes: the drill pipe rotating device, a fracturing truck, the drill pipe, and a jet tool string, sequentially connected to mine the coal seam.