Abstract
The research aim is establishment of effective parameters for mining of flooded bench by a hydro-mechanized complex with dumping of enclosing rocks in a sludge pond of pit residual space. The established research results make it possible to choose the effective width of the dredger mining cut at the hydromechanical method, taking into account the volume of the excavation and dump pipeline movements. Two technological schemes for the formation of a sludge pond in the pit residual space are proposed, they differ in the direction of the sludge pond movement relatively to the pit front. The established dependence of the number of movements of the sludge pond pipeline on the width of the dump pass allows to choose its effective value, taking into account the number of discharge pipes. Based on the dependence of the average monthly excavation volume and the number of movements of sludge pond pipeline on the width of cut face, the optimal number of discharge pipes is established. The research results allow establishing the effective dredger width of the sludge pond and the number of discharge pipes provided that a transverse or longitudinal pass at the internal sludge pond formation is applied during the mining.
Highlights
IntroductionThe use of hydromechanized method for developing flooded benches of titanium zirconium deposits is comparable in effectiveness with the use of mechanical excavation equipment and in some cases even exceeds it
The established research results make it possible to choose the effective width of the dredger mining cut at the hydromechanical method, taking into account the volume of the excavation and dump pipeline movements
The research results allow establishing the effective dredger width of the sludge pond and the number of discharge pipes provided that a transverse or longitudinal pass at the internal sludge pond formation is applied during the mining
Summary
The use of hydromechanized method for developing flooded benches of titanium zirconium deposits is comparable in effectiveness with the use of mechanical excavation equipment and in some cases even exceeds it. This is due to the relatively small capital costs and operating costs for mining as well as the use of the most efficient hydraulic transport to move the rocks [1, 2]. The sand rocks can be stored in the mined-out pit area by a hydromechanical method This solution requires justification of the effective mining and dumping parameters [9, 10]
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