Settling funnel hydraulic gradient driven water replenishing ore dissolving salt lake brine mining method and system

By calculating the gradient distribution and deploying a network of injection wells in different zones during the extraction of brine from salt lakes, and by injecting solvent in layers and dynamically controlling the process, the problems of low ore dissolution efficiency and ecological protection in the settling funnel area have been solved, thus achieving efficient and economical resource extraction.

CN121701148APending Publication Date: 2026-03-20QINGHAI CITIC GUOAN SCI & TECH DEV CO LTD
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Patent Information

Application Number
CN202512054133.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing technologies for salt lake brine extraction suffer from problems such as uneven ore dissolution efficiency, ineffective utilization of hydraulic gradients, formation disturbance, and ecological and environmental impacts. In particular, it is difficult to achieve the synergistic requirements of efficient ore dissolution and ecological protection in the settling funnel area.

Method used

By collecting water level data in the settling funnel area, calculating the gradient distribution and dividing functional areas, laying out a network of injection wells along the gradient direction, and injecting solvent in layers to form a directional seepage field, combined with an intelligent control system to achieve dynamic balance of brine parameters and form a closed-loop automatic control.

Benefits of technology

It improved ore dissolution efficiency, increased resource utilization value, reduced geological disturbance and ecological risks, and achieved an increase in resource recovery rate and mining economics.

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Abstract

The invention discloses a salt lake brine mining method and system for hydraulically gradient-driven water replenishing and ore dissolving of a sedimentation funnel, and relates to the technical field of salt lake mineral resource development, the method comprises the following steps: S1, collecting water level data of a sedimentation funnel area, calculating gradient distribution, dividing functional areas, and generating zoning parameters; s2, based on the partition parameters, a water injection well network is arranged in the gradient direction, water injection parameters are determined according to the water level difference, and a well network scheme is generated; s3, based on a well pattern scheme, injecting the proportioning solvent into an ore bed in a layered manner to form a directional seepage field, and generating solute transport data; s4, on the basis of solute transport data, enriched brine is extracted in the collection area, the concentration is monitored, and brine parameters are generated; and S5, based on the deviation between the brine parameter and the target value, calculating the regulation amount, adjusting the injection-production parameter to maintain dynamic balance, and outputting the salt lake brine with the target concentration. By regulating and controlling the hydraulic gradient, the form of the settlement funnel is stabilized, the phenomena of stratum disturbance and ground settlement are reduced, and the ecological risk is reduced.
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