DOI: 10.11799/ce202601004
Selection,matching and application of"three-machine"for the 450 m ultra-long fully mechanized mining face of medium-thick coal seam with an annual output of 10 million tons
QIAO Yongli
ZHANG Jinhu
XING Youwang
WANG Xiaojun
Abstract：To provide a more reasonable and feasible"three-machine"matching scheme for ultra-long working faces in medium-thick coal seams,we proposed a matching scheme for a 450 m ultra-long fully mechanized working face at the 132202 working face in Xiaobaodang No.2 Mine,considering the geological conditions and mining processes for the 2～3 m medium-thick coal seam.The matching scheme was determined through systematically calculating the parameters such as the power matching of coal shearers,scraper conveyors and hydraulic supports,as well as the transportation capacity and dimensions of the installation space.Underground operation results showed that,the matching scheme was reasonable,the equipment operated well,and the expected productivity(ten million tons per year)was achieved.This matching scheme provided both theoretical and practical experience for achieving mechanized mining of ultra-long working faces in medium-thick coal seams under similar conditions and contributes to the further development of ultra-long working face applications.
Keywords：medium-thick coal seamultra-long working faceequipment selection and matchinghydraulic supportfully-mechanized mining
Publication Date：2026-01-20
Online Publishing Date：2026-03-10(First online date of this platform, not the publication date of the document)
Pages：7( 28-34 )