Multi-stage linkage collecting device and method for ore leaching liquid in heap leaching field of metal mine

Abstract

The invention discloses a multi-stage linkage collecting device and method for ore leaching liquid in a heap leaching field of a metal mine. The multi-stage linkage collecting device for ore leaching liquid in the heap leaching field of the metal mine comprises a plurality of ore leaching liquid collecting systems laid between adjacent material layers of the heap leaching field, a plurality of communicating pipelines correspondingly connected with the output ends of the ore leaching liquid collecting systems one to one, and conveying pipelines correspondingly connected with the output ends of the plurality of communicating pipelines. Each ore leaching liquid collecting system is formed by connecting a plurality of collecting pipes in a crossed mode, the input ends of the communicating pipelines are correspondingly connected with the collecting pipes on the outermost layers of the ore leaching liquid collecting systems, and the output ends of the conveying pipelines are connected with a liquid collecting pool. By means of the mode, the bottom end of each layer of the heap leaching field is provided with the ore leaching liquid collecting system, the ore leaching liquid is conveyed through the same conveying pipeline, recycling linkage of multi-stage ore leaching liquid can be achieved, and the seepage time and distance of the ore leaching liquid in the heap leaching field are shortened.

Description

technical field [0001] The invention relates to the field of mine heap leaching sites, in particular to a multi-stage linkage collection device and method for leaching liquid in metal mine heap leaching sites. Background technique [0002] The heap leaching site is widely used to extract gold, silver, copper and other metals. Low-grade ores are piled in the heap leaching site. The heap leaching site uses materials with low permeability coefficients, such as HDPE anti-seepage membrane as anti-seepage lining Then the heap leaching liquid is poured down from the top of the ore heap. After the chemical reaction between the leaching liquid and the metal in the ore, the metal ions in the liquid permeate through the ore heap and finally accumulate at the bottom of the heap leaching field. The collection pipes are collected in the liquid collection tank, and finally various metals are extracted through different processes; and since the value of minerals is realized through the reco...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems that the existing leaching liquid collection system is only set at the lowest end of the heap leaching field, the collection efficiency is low, the pipeline system is prone to blockage, and the heap leaching field is unstable, the present invention provides a metal mine heap leaching field leaching The liquid multi-stage linkage collection device and method can be provided with a leaching solution collection system at the bottom of each layer of the heap leaching field, and each leaching solution collection system is connected to the same delivery pipeline through different communication pipes for unified transportation , Control valves are installed on each connecting pipe to reasonably distribute the negative pressure of each leaching liquid collection system to achieve optimal linkage recovery

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