51results about How to "Increase effective storage capacity" patented technology

The invention provides an ore drawing method for improving the utilization rate of the storage capacity of a tailings pond. The ore drawing method comprises the steps that firstly, an initial dam (1), drainage shafts (2) and a drainage pipe (3) are constructed; secondly, an ore drawing main pipeline is made to conduct beach top scattered ore drawing on a dam front beach top of the initial dam (1); thirdly, the ore drawing main pipeline is horizontally moved to the interior of the tailings pond in order to conduct scattered ore drawing; fourthly, the third step is repeated until the residual pond length is not smaller than the required transparent distance. On the foundation that proper ore drawing methods are selected according to practical pond shape conditions of different tailings ponds, the utilization rate of the storage capacity of the tailings pond is improved, the effective storage capacity is increased, the storage amount of the tailings pond is increased, the service life of the tailings pond is prolonged, and more economic benefits are created for enterprises.

The invention discloses a hydraulic arrangement type sand discharging structure, which comprises sand discharging pipelines, wherein the sand discharging pipelines are laid on the bottom parts of a reservoir, the tail ends of the sand discharging pipelines are connected with a bottom hole or a tunnel of a dam body and provided with gate valves to control the discharge rate; the head ends of the sand discharging pipelines are extended toward up stream, the end parts or proper parts of the sand discharging pipelines are provided with curved pipe segments tilted upward, and upper end openings ofthe curved pipe segments are higher than the expected sand silting face; and one side or / and two side pipe walls of the sand discharging pipes is / are provided with branch pipelines, the upper side pipe walls are provided with gate wells, and the inside of each gate well is provided with control valves. The number of sand discharging pipelines is more than two, and the sand discharging pipelines are laid on the reservoir bottoms on the bank side and in the middle of the reservoir respectively. The number of the gate wells is more than one, the gate wells are arranged on different positions on the upper side pipe wall of each sand discharging pipeline. In the mode of changing the position of a water inlet of a sand discharging hole of the reservoir, the structure utilizes the distributing type space difference generated in laying the sand discharging pipelines to achieve the aim of widening the range of sand discharging; moreover, the structure also has the advantages of unnecessary external energy, high sand discharging efficiency and good social and economic benefits.