Research On Comprehensive Tunneling Face Wind Curtain Dust Control Comprehensive Experiment Platform Design

This thesis comprehensive analysis the current status of at home and abroad heading face air curtain control dust technology and air curtain control dust comprehensive experimental platform research, combined with air curtain control dust principle and theoretical analysis of the jet, based on Liaoning Engineering Technical University, Safety Science and Engineering tunneling experiments the background of the tunneling experiments roadway, proposed the establishment of air curtain control dust comprehensive experimental platform design effectively. Based on the wind curtain dust comprehensive experimental platform to achieve the overall functionality requirements, has carried on the overall design of the experimental platform. The use of narrow jets theoretical design an air curtain jet generating device of the air curtain jet exit width and exit angles adjustable, through theoretical analysis, numerical simulation discusses the design of inverted U-shaped air curtain jet generating device can be formed air curtain, to reduce the dust concentration of throughout the excavation face and to prevent dust diffusion to the driver apparently, obtained jet exit velocity at 12m/s to between 25m/s, jet exit slit width should be between 6mm to 20mm jet apparatus for forming air curtain control dust can play a role, it can for the device application experiment platform provides a theoretical basis. Binding assay platform design requirements gives the selected design of power plant and dust sources, the designed power unit can provide a steady stream of gas and power source for the air curtain jet device,the selected dust occurred device can provide a variety of precisely controlled quantities, continuous changes in dust particle dust source, the final completion of the construction of the wind screen control dust comprehensive experimental platform core part, namely the establishment of a complete set of air curtain dust control systems, giving the basic framework and architecture of air curtain control dust comprehensive experimental platform design.