The Optimization Simulation And Study Of Technological Parameters For Coal Drawing For Fully Mechanized Caving With Large Dip Angle

FuShan ore for the reconstruction of mines, the main mining2#coal seam with large dipAngle thick seam, and coal quality soft, to ensure the safe and efficient production of coal mine,study used to long arm or tilted long arm to mining technology of fully mechanized caving coalface different coal process, the feasibility of the comparison and analysis it is concluded that themost reasonable coal technology. Large dip Angle of coal seam mining technology level is farlower than the low coal seam, especially in thicker coal seam, coal quality under complexgeological conditions, such as soft, there are many basic technical problems.This paper through the field investigation and theoretical analysis, the economiccomparison and the numerical simulation method of toyama mine Angle under the condition ofsoft coal seam in fully mechanized mining has carried on the correlation analysis and research.On the basis of rich mountain coal mine21051face process adaptability evaluation of fullymechanized caving coal face, the choice of coal mining process and coal process parametersoptimization simulation research and analysis, the following main conclusions:1) Analyzed the rich mountain coal mine21051working face of coal seam occurrencecondition and the dip Angle of coal seam, coal thickness and changes, coefficient of coal seamand roof caving of factors such as study, puts forward the working face should choose process offully mechanized caving coal face.2) Using PFC2D numerical simulation software, large dip Angle fully mechanizednumerical simulation model is established, the coal working face different process parametersare optimized, it is concluded that the extraction rate and process parameter of different coal andgangue content, through the analysis of simulation results, optimized the reasonable coal processparameters of the working face.3) The actual conditions,21051working face in the working face equipment type selection,fall prevention, prevent slippery, and prevent the respect such as piece for roof caving areanalyzed research, optimizes the parameters of fully mechanized working face21051,established the working face coal winning machine, flexible scraper conveyor and hydraulicsupport, equipment selection and equipment parameters, such as the technique of large tilt Angleface prevent slippery, prevent fall and prevention for roof caving technology, provides guidancefor coal mine safety production.