crushing of coal process

Failure Mechanism of Gas-Bearing Coal during

2021.11.11 When coal and gas outburst occurs, an enormous amount of coal and gas are ejected from the coal seam, and coal is quickly broken and moved to the coal mining work face. The entire process

Failure characteristics and mechanism of coal under the coupling ...

2023.11.11 Specimens. The coal specimens were taken from a mine at a depth of 640 m in Shandong, China. To minimize the effect of material inhomogeneity, the

Experimental study on the secondary breakup properties

2022.2.1 It represented the gradual increase in the effect of crushing of the crushed coal samples during the axial loading process. Since the secondary breakup has a

Selective Crushing of Run-of-Mine as an Important Part

2021.5.28 The results of laboratory tests for selective crushing susceptibility of steam coal and coke are presented, and a comparative analysis of the tested types of

Effect of particle size on re-crushing characteristics of crushed coal ...

2022.7.1 The deformation and re-crushing characteristics of crushed coal and rock directly affect the porosity and permeability distribution of the mining gob and overburden

Quantitative analysis of layered re-crushing of crushed coal

2023.8.1 Crushed coal particles Confined compression CT scanning 3D reconstruction Layered re-crushing 1. Introduction The overburden strata of a mining

Experimental study on the transporting and crushing effect of gas

2023.11.1 It is well known that the transporting and crushing of outburst coal is the main pathway of energy dissipation during the coal and gas outburst process. However,