In-situ leaching uranium mining mine advanced closed solution pumping and injecting system

Abstract

The invention discloses an in-situ leaching uranium mining mine advanced closed solution pumping and injecting system. The system comprises a booster pump room, a wellsite solution injecting booster pump station, solution injecting flow control, a solution injecting well, a solution pumping well, solution pumping flow control, a wellsite solution collecting booster pump station, a water treatmentplant filtering device, a water treatment plant adsorption device and a system pressure stabilizing and flow adjusting device. The system pressure stabilizing and flow adjusting device communicates with the booster pump room. According to the in-situ leaching uranium mining mine advanced closed solution pumping and injecting system provided by the invention, the working form that a solution collecting reservoir and a solution preparation reservoir are arranged in an existing open solution pumping and injecting system is omitted, full-closed operation of pumping and injecting of a leaching solution is achieved, energy wasting caused by pressure relief is avoided, the operating cost is lowered, meanwhile, the release amount of radioactive radon gas in the leaching solution can be decreased easily, and environment pollution is alleviated; and the system provided by the invention adopts a two-stage booster solution injecting mode that the wellsite solution injecting booster pump stations are arranged on all mining area well sites, and the system can effectively adapt to the realistic demand that the leaching solution injecting pressure is different for different mining areas.

Description

technical field [0001] The invention relates to the technical field of in-situ leaching uranium mine engineering, in particular to an advanced closed pumping and injection system for in-situ leaching uranium mining. Background technique [0002] In-situ leaching uranium mining is an advanced uranium mining technology in the world. Its basic principle is to drill holes for in-situ leaching sandstone-type uranium deposits according to a certain grid, inject leachate from the injection hole, and make the leachate and the underground ore layer The uranium is fully reacted to dissolve the uranium into the leaching solution, and the uranium is taken out of the surface through the pumping hole, and the process of adsorption or extraction of uranium is carried out in the surface water smelting plant. . [0003] At present, advanced and environmentally friendly "CO 2 +O 2 "In the leaching process, the pumping and injection of the leachate generally adopts an open system, that is, ...

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Problems solved by technology

Moreover, the leachate injection adopts the first-stage pressurized form of "liquid distribution tank + liquid distribution pump room", which cannot meet the actual needs of different leachate injection pressures in well sites in different mining areas, and the operating cost is relatively high.

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