EXPERIMENTATION DEVICE FOR SIMULATION OF AIRFLOW-GAS-DUST MULTI-PHASE COUPLING SPATIAL-TEMPORAL EVOLUTION AT FULLY MECHANIZED EXCAVATION WORKING FACE

摘要

Disclosed is an experimentation device (1) for the simulation of airflow-gas-dust multi-phase coupling spatial-temporal evolution at a fully mechanized excavation working face, the experimentation device is provided with a simulated excavation main roadway (2) and a simulated excavation auxiliary roadway (3), wherein a certain included angle is formed between the roadways; a roadheader (4), a multi-source gas quantitative release device (5), a multi-source dust quantitative generation device (6) and an air extraction apparatus are provided in the simulated excavation main roadway (2); an air compression apparatus and a data analysis and monitoring station (9) are provided in the simulated excavation auxiliary roadway (3); and a plurality of measurement point sections are arranged along the simulated excavation main roadway (2). The air compression apparatus and the air extraction apparatus operate to create an airflow; quantitative gas and dust are released at the roadheader (4); the airflow, the dust and the gas are coupled in a multi-phase manner in the roadways; data measuring ports (8) in the measurement point sections acquire data such as the speed and direction of the air, the granularity, concentration and distance of the dust, and the concentration and distance of the gas; and the measured data is transmitted to the data analysis and monitoring station (9), such that ventilation at the excavation working face is simulated, so as to provide a basis for improving the working face ventilation standard.