WebAug 27, 2024 · Taking 42,115 fully mechanized working faces in the Yushen coal mining area as an engineering background, this model was adopted to assess and identify the risk of roof accidents through generating comprehensive assessment cloud images and introducing the Dice coefficient to calculate the similarity degree. WebFeb 5, 2024 · Existing fully mechanized mining equipment includes: (1) Auger shearer Auger shearer is transform from auger drill which is used for opencast mine. The output …
Online shearer-onboard personnel detection method for the …
WebThis study considered the mining roadway with coal pillar protection in the fully mechanized caving face of the Dananhu No.1 Coal Mine, China. Theoretical analysis, numerical simulation, and field tests were conducted, and the stress environment, deformation, and failure characteristics of the mining roadway in the fully mechanized … WebSep 20, 2016 · Figure 9 illustrates that advanced support pressure in the coal can be divided into four stages: 1. The area within the range of 0–5 m of the distance from face … multiman black screen ps3
A virtual test and evaluation method for fully mechanized mining ...
Web1. A filling mining method for a fully-mechanized top coal caving working face, comprising the following steps: at step A, dividing the fully-mechanized top coal caving working face into a filling zone and a top coal caving zone along a strike of the working face, wherein lengths of the filling zone and the top coal caving zone are equal to a … WebOct 7, 2024 · In order to effectively reduce the coal dust concentration in a fully mechanized mining face, this research used laboratory experiment, numerical simulation, and field test to conduct an in-depth exploration of the ejector precipitator installed at the low-level caving coal hydraulic support. Web1 day ago · To investigate the influence of dust produced by multi-dust sources at a fully mechanized mining face with a large mining height on the safety conditions in a coal … multiman brewology ps3