Research On Application Of Electro-hydraulic Control Technology For Advanced Support Face In Full-mechanized Mining Face

This paper takes the 1001 fully mechanized coal mining face of Shaanxi No.1 Coal Mine Huangling Coal Mine as the actual engineering background,and collects data,theoretical analysis,numerical simulation,downhole industrial experiments and other methods to intelligentize the fully-mechanized mining work of the Huangling No.1 coal mine.The advanced surface support equipment control technology has conducted in-depth research.First of all,according to the geomechanical parameters of 1001 fully mechanized mining face of the Huangling No.1 coal mine,mechanical model of the overhaul supporting equipment was established to determine a reasonable support intensity to provide security for the safety of the working face.The FLAC3D numerical simulation software was used to study the defonmation of the roof and floor of the roadway and the deformation and failure of the surrounding rock before and after the advance support.Industrial tests show that with this new type of advanced support,the maintenance effect of the top plate and the two ribs is better than that of the traditional single-unit hydraulic props.The mining face at the working face is relatively fast and the supporting strength of the support equipment is low.High security.Secondly,combining with the requirements of automatic control,remote control,and remote control of intelligent support face advanced support devices,the advanced support devices will be integrated through the industrial field bus to meet the basic operations of the advancing support devices such as adjacent racks and shelves.At the same time,it can realize the automatic control of advanced support devices,and can realize the integration of a hydraulic control hydraulic support hydraulic control system into a unified control system through bus communication,and achieves coordinated and efficient control of advanced support devices and hydraulic supports,greatly improving safety.The production level achieves the goal of safe,high-yield and high-efficiency mining of the working face.Finally,downhole industrial tests were carried out at the Huangling No.1 coal mine roadway and the fully mechanized mining face of the roadway.During the entire industrial test period,the advanced support device not only achieved a safe and rapid movement,but also ensured safe production.Increase the speed of advancement of fully mechanized coal mining face,thereby increasing the production of raw coal and the recovery rate of coal resources,greatly reducing the waste of resources;promoting the technical progress of coal mining,opening up the direction of less humanized mining face,and improving the production of fully mechanized mining Efficiency,reduction in personnel,and reduction in the labor intensity of workers are of great significance and have a profound effect on the development of the coal mining industry.