Experimental and Theoretic Research on Unfree Inundation Water Efflux Flow Field and Circular Field in Rock Salt Well Water-Mining
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Abstract:
Simulative experimental research and theoretic analysis on the characteristics of unfree inundation water-flow field and circular field in rock salt well water-mining have been done by glass equipment.The tracer particles spirally circumferentially ascend from bottom to stoma in the triangle vase flow field during the process of unfree inundation efflux flow by positive-cycle pouring water,and the tracer particles fast move up and down in the columnar flow field(jar) as the spouting interval,height of columnar flow field and diameter of the tracer particles are less.While contrary-circular pouring water is done,the water location of centric pipe flow water for the triangle vase is tangential with the down of telescopic pipe and steadily maintains the state.For the columnar flow field,water location is higher than the down of telescopic pipe while the circulation field is just formed and gradually drops until it is tangent with the down of centric pipe.Theory analysis and calculation show that the tracer particles spirally ascend owing to the competition between the up return rate(V_H) and the axial rate(V_m).The fanning orientation of pasting line is the vector sum between V_H and V_m.
