METHOD OF DESALINATION OF HIGH-ALTITUDE DUMPS Russian patent published in 2015 - IPC E21B43/28 

FIELD: mining operations.

SUBSTANCE: method of desalination of dumps comprises formation of dump of rock mass with off-balance content of commercial component, injection of a hardening mixture of the lower zone of the dump provided as a result of segregation of the rock mass on coarseness with the large-size material, injection of the upper zone with the reagent solutions in wells, passed from working to the mountain slope. The working is passed obliquely, parallel to the slope along the centre of the beam water-intake used for dumping. The zone of desalination is increased as areas upwards. After the completion of desalination at a single site instead of desalination reagents the pumping of the solutions for their neutralising is started, and then cementing, hardening agents.

EFFECT: increased efficiency of extraction of useful components from dumps, reduction of negative impact of dumps on the environment and creation of conditions for their subsequent remediation.

2 dwg