【Instrument Introduction】The experimental simulation setup consists of a core holder, a flat-flow pump, a back pressure valve, a liquid flow meter, a piston stirring container, a pressure sensor, and an electronic balance. It is primarily used to conduct experiments on the migration of coalbed fluids and coal dust under coal seam confining pressure during coalbed methane extraction, achieving functions such as data collection of inlet pressure, inlet flow rate, outlet flow rate, confining pressure, and sampling of coal dust and liquid samples during the experiment. 【Instrument Features】 【Instrument Applications】The experimental setup can measure the flow rate or velocity of coalbed water (including coal dust suspension) through the holder at a certain pressure difference (ΔP); the pressure drop across coal rock samples or fractured sand at a certain flow rate or velocity; water permeability tests under different confining pressures and injection pressure differences; migration and clogging experiments of coal dust under different confining pressures and injection pressure differences (with a coal dust weight concentration set at 8%).