RU2435025C1 - Development method of flooded technogenic sites in place of their final resting - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: method involves arrangement of increased permeability of mining ore mass (MOM), action of reagents on MOM obtaining design content of useful components (UC) in the form of concentrated solutions. In order to obtain design contents of UC, MOM is changed over to permeable state by its mixing with water component of flooded technogenic sites till suspension of design density is formed. After the suspension achieves the design density, MOM UC is changed over to ionic condition by mixing the suspension with optimum solvent till design concentration of UC (mg/l) is formed in place of MOM resting. Then, suspension is settled in the same volume of technogenic site till the solution is clarified. At formation of suspension the silts can be used as MOM.

EFFECT: increasing development efficiency of flooded technogenic sites; reducing the development time period and obtaining complex or selective productive solutions.

2 cl, 3 dwg

Description

The invention relates to the mining and mining industry, in particular to the development of irrigated technogenic objects (tailings) as a result of the enrichment of above-water waters at the site of their occurrence.

At the present stage of development of the mining industry, there is an increasing need for the use of technogenic mineral deposits containing such industrially important components as uranium (U), gold (Au), rhenium (Re), molybdenum (Mo), scandium (Sc), tungsten (W), yttrium (Y), rare earth (RZ), lithium (Li), tungsten (V), as well as copper (Cu), nickel (Ni), zinc (Zn), cobalt (Co), manganese (Mn) and etc.

A known method of heap leaching of useful components mainly in the development of tailings, including placing the ore mass (GRM) on a prepared site with a feed and collection system of solutions, supplying the leaching solution, processing the timing with electric current and collecting the productive solution, and before applying the electric current supply of the leaching solution to The timing is produced before it is saturated, and the electrical treatment is carried out using an electro-hydraulic device that produces electrical rounds (RU 2176730 C1, OJSC Krasnoyarsk Design and Survey Institute Hydroproject, Е21В 43/28, 11/30/1999).

This method intensifies the leaching process by means of acoustic cavitation, however, it is applicable only to non-irrigated objects.

One of the close analogues of the proposed is a method of developing tailings of enrichment plants by downhole leaching, including leaching of useful components from pre-contoured sections of the conditioned sands of the tailings, which are divided into blocks of regular shape, for example hexagons, in which the wells are drilled in the center and around the perimeter before contact with the underlying substandard sands, create a hydraulic fracture under the operating unit, fill it with a hardening composition (liquid with teklom, cement, resin), creating a waterproofing block from the bottom. Then, along the perimeter of the block, the sheet piling is hammered, providing waterproofing of the block on the side along its perimeter. Metal leaching is performed by injecting a chemical or microbiological solution into the central well, which, moving along the sands of the tailings within the block, reacts with minerals, enriches with useful components, rises to the surface along peripheral wells and is sent for processing to a metallurgical plant or extraction plant (RU 2205956 C1, St. Petersburg State Mining Institute named after G.V. Plekhanov (Technical University), Е21С 41/26, December 6, 2001).

The specified method provides a reduction in the cost of metal production during the development of the tailings by leaching useful components from the conditioned sands at their location, however, is also not applicable for irrigated objects, in particular tailings.

Closest to the proposed method is a laboratory method of agitational leaching of metals from ores, when a specified amount of optimal solvent is added to a laboratory vessel, with a certain amount of ore-bearing substance (GRM), filled with a certain amount of distilled water (adding a certain amount of a chemical reagent to aqueous component that gives the best percentage of extraction of metals from ores when converting them to an ionic water state, is determined for each type of p ud individually experimentally), with stirring, multiple periodic shaking of the contents or circular stirring using a plastic rod or magnetic stirrers is used, after mixing is completed as a result of settling of the insoluble component, a clarified productive solution (PR) containing a useful component (PC) is obtained with sufficient ( conditional) content for cost-effective extraction (V. A. Grabovnikov "Geotechnological research in the exploration of metals", M., "Nedra", 1995 G., section 2.2, p. 54-55).

According to laboratory data, it is established that the most easily leachable is timing, the particle size of which is 0.074 mm. When using a timing belt with such a particle size in laboratory practice, metals are transferred to the ionic state (leaching) in 1 day. The yield of metals in the solution (extraction) in this case is up to 90% or more, when choosing the optimal solvent.

The task of the invention is to increase the efficiency of the development of irrigated technogenic objects and reduce the terms of mining by:

creating easily leachable suspension, in particular, as a result of mixing the entire contents of the technogenic object - (tailings) with the optimal solvent for a short period (1-3 months);

creating active water exchange throughout the entire volume and area of the object at the same time, using a set of devices;

obtaining complex or selective metal-containing PR within 3-15 days at the site of the object, in the process of suspension leaching;

clarification of the PR after mixing is completed as a result of further sedimentation of insoluble suspended particles at the site of the object itself for 15-20 days.

Another objective of the invention is to ensure environmental cleanliness, in particular due to the fact that the leaching process is carried out in a closed geometric space, under the water surface, without contact of service personnel with the timing, solvent, suspension formed and metal-containing PR.

The proposed invention is aimed at providing the domestic market of Russia with valuable, non-ferrous, strategic and radioactive metals in a short time, as well as at ensuring employment of the population of the regions adjacent to such facilities.

The tasks are solved by the fact that in the method of processing the irrigated technogenic objects at the place of their occurrence, including the formation of easily leachable suspension, obtaining design contents (PC) in the form of productive clarified solutions, moreover, to obtain design contents of PC, the timing is transferred into a permeable state by mixing it with the water component of the irrigated technogenic objects until suspension of design density in the volume of above-water waters at the place of occurrence of the timing, then the timing belt is transferred to the ionic state mixing by suspension with the optimal solvent until the design concentrations of PS are formed at the place where the timing is located, after reaching the design concentrations of PS in the solution, the suspension is settled in the same volume of the technogenic object until the solution is clarified, and after clarification, the solution is transported to a sorption workshop for further processing and preparation commodity regenerates.

Mostly in the formation of easily leachable suspension, silt of irrigated technogenic objects is used as a timing.

An easily leachable suspension is created using hydraulic devices, they are applied to the suspension with an optimal solvent uniformly over the entire area and volume of the technogenic flooded object, also using hydraulic devices, and complex or selective PRs are obtained as a result of the interaction of suspension and solvent in which PC content (mg / l) correspond to the maximum possible (80-90%) extraction of metals available in the timing. To obtain a PR, the timing is mixed with the water component of the irrigated technogenic objects until a suspension of design density (g / cm ³ ) is formed, determined for each object individually as follows based on well-known formulas (1) to determine the initial moment of uniform supply of the optimal solvent to the perimeter of the object:

,

,

where ρ is the density (t / m ³ ), m is the mass (t), V is the volume (m ³ ).

For example: it is necessary to determine the design density of the suspension (ρ _CR )

where m of _water = 3 t,

m of _{water in the timing} = 0.6 t, taking 60% for the absolute porosity of the flooded sludge,

V _{timing belt} = 1 m ³ ,

V _water = 3 m ³ ,

ρ _{timing dry} = 2.5 t / m ³ ,

ρ _water = 1 t / m ³ ,

m _{Timing dry} = ρ _{Timing dry} V _{Timing dry} = ρ _{Timing dry} (V _{timing bypass} -V _{water in timing} ) = 2.5 (0.4) = 1 t.

ρ _ol = 1 t + 0.6 t + 3 t / 1 m ³ +3 m ³ = 1.15 t / m ³ .

In this case, at L / T (dimensionless: L (m ³ ) - the amount of working solution per unit of leachable timing - T) is 3.6, the design suspension density is 1.15 t / m ³ . For the sulfuric acid leaching method, the optimal value of L / T is 2-4, for bacterial leaching (LEL), L / T = 4-7.

Determination of the design density of the suspension is also necessary to select the material for the manufacture of the device for mixing. Since the system that implements the method is assembled from polymeric materials, and the design density of the resulting suspension is 1.15 t / m ³ , it is necessary either to equip the installation with weighting materials, the mass of which is calculated by the formula:

where P - t, the mass of weighting agents,

k _add = 1.3-1.5 - coefficient taking into account additional resistance forces when immersed.

L - m, the length of the prefabricated parts of the column,

q - kg, weight 1 m pipe

k - immersion coefficient = ρ _w / ρ-1,

where ρ _W - t / m ^{3 the} density of the suspension,

ρ - t / m ³ , the density of the installation material,

if k> 0, then the installation pops up, or the material from which the installation is made must have a density of more than 1.15 t / m ³ taking into account k _add . For example, high-pressure polyethylene (LDPE) with a density of 1.9 t / m ³ or polyvinyl chloride (PVC) 1.4 t / m ³ (Uranium Geotechnology Handbook, Beletsky V.I., Bogatikov N.I. et al., Moscow , "Energokomizdat", 1997, p.412, table 13.9).

To determine the density of suspensions in natural conditions, instruments for measuring the particle size of dispersed materials are applicable: laser diffractometers - particle size analyzers of powders, suspensions and suspensions, which are specialized equipment for environmental monitoring. The device of the French instrument-making company, manufacturer of high-quality optics, solid-state lasers and gas lasers CILAS - is used for underwater measuring the size and concentration of particles suspended in river and sea water, is an underwater analyzer of particles of aqueous suspensions. Such devices provide a profile for the distribution of particles suspended in water and microorganisms to a depth of 300 m and are mounted in the proposed method in the central part of the hydraulic platform.

After the suspension reaches the design density, leaching in full of the above-water occurs, i.e. The timing belt is transferred to the ionic state by mixing the suspension with the optimal solvent coming from the multifunctional pumping collector, which surrounds the perimeter of the object, in which bacteria can also be grown for BKV. Due to the fact that the process must be adapted to any chemical and technological regulations, there is a need for high-quality measuring equipment. To change the density of a substance in a pumped-out manifold, non-contact density meters can be used, for example, No. 23816-02 Ecofizpribor in the State Register of Measuring Instruments — a group of instruments designed to measure the density of pulps and liquids in pipelines (when they are completely filled) and various technological installations. Densitometers "Ecofizpribor" are used to control highways filled with: corrosive, abrasive, aggressive, toxic, biohazardous materials, molten and cryogenic substances, foams, suspensions, suspensions, powders, pulp, and charge. The temperature and pressure inside the pipeline can be any. The principle of operation of densitometers is based on the dependence of the flux of gamma radiation passing through the substance on the density of the substance. The corresponding components are made in sealed or explosion-proof enclosures, are resistant to vibrations and adapted to harsh climatic conditions.

Thus, knowing the density of one or a mixture of solvents, using the above devices it is possible to most accurately take into account its quantity for supplying the perimeter of the object. The design concentration of the solvent (C _p ) specified by the chemical and technological regulations for feeding into the perimeter of the object is calculated by the formula:

where M _p - the mass of the supplied solvent (t) is determined from the well-known formula:

where ρ of the _solvent is t / m ³ , the density of the solvent, reliably measured by a densitometer;

C -%, solvent content corresponding to the state standard specification of the manufacturer, specified by the technological regulations;

V ₁ - m ³ , the volume of above-water;

V ₂ - m ³ , the volume of solvent supplied, measured by the known filling volume of the pumping manifold, as well as controlled by meters installed in the central control unit. For example, when 8.5 kg of 36.6% solvent is supplied, it is necessary to determine its design concentration C _p for 1,500 l of above-water.

With _p = (8500 g * 0.366) / 1500 l = 2.074 g / l.

Upon receipt of the design concentration of PC (C _ol ) mg / l, at the location of the timing, determined for each object and PC individually according to the formula (6).

where P - t, metal reserves in the timing,

Δβ -% optimal possible recovery, determined by the results of enlarged laboratory or semi-industrial tests,

ΔV - m ^{3 the} total number of obtained productive solutions.

The suspension is defended in the same volume of the technogenic object until the solution is clarified. (Laboratory and technological research and mineral processing, Mingeo USSR, 1978)

The specified example of the method allows the use of various chemical regulations for leaching (enrichment of above-water), such as microbiological, sulfuric acid, hypochloride, cyanide or combinations thereof, by creating optimal leaching modes - the order of actions, indicating the time of exposure of the solvent to the timing - chemical, temperature or light, as well as determined experimentally at the preliminary stages of the study of the concentration of the supplied solvent.

As a result of sampling - pumping out ready-made PRs from the place of their formation, in particular, the tailing perimeter, quick reclamation of such objects is possible, for example, the table shows the initial PC contents in the sludge and above-ground waters of two irrigated technogenic objects of the Russian Federation before a test experiment using one from simple and environmentally friendly solvents and after its use.

The results were obtained with a single shaking of the sludge component with a solvent in laboratory conditions. The clarification of the solution occurred within 1 day. There is a positive tendency for metals to enter the solution using a natural solvent.

Test leaching of PC from the timing of sludge of anthropogenic objects PC sludge timing (g / t) residual to secondary leaching Breast water (μg / L) before secondary leaching Breast water (mcg / L) after secondary leaching 1 item 2 objects 1 item 2 objects 1 item 2 objects W 2.96 2.46 1.05 1.22 343 161 Mn 393 649 119 39 489 - Ni 46 32 four 2.6 22.4 8.4 Mo 2 one 35 6 90 42 Sr 127 224 469 161 2078 -

Thus, the proposed method allows to realize the following advantages:

- the volume of the water component already existing in the perimeter of the object is used;

- the leaching process is carried out without drilling wells, without the use of waterproofing mixtures, the intensification of the leaching process does not require electrical treatment of the timing, the particle size of the resulting suspension is an ideal object for leaching, and the amount of solution used ensures the release of PC ions into the aqueous phase from the timing with stirring;

- the leaching method occurs without transferring the timing and the water component from the perimeter of the facility to the enrichment site with a minimum of labor and time. The process of enrichment of above-water waters occurs at the site of the facility and is carried out by a minimum number of technical personnel and with minimal energy costs;

- Exclusive mixing devices are used, characterized by ease of assembly, control, low cost of components and repeated use. A single operation of the device’s ascent is equivalent to the removal of core material by a core tool with one drilling rig in the amount of eighty shortened runs 1.5 m long, that is, replaces drilling a well with a depth of 120 m in silts for 10-15 minutes;

- the method can be adapted to any chemical and technological regulations, and the changes that occur are controlled by precise instrumentation;

- the method causes minimal harm to nature and man, since the whole process takes place under the water surface of the facility in a short time, and is controlled from the shore of the facility using standard techniques and equipment, including those used for underground well leaching of ores (SPV), ready-made productive solutions are transported for processing through a closed collector;

- the enrichment and processing of the water component occurs in a short time, during one summer-autumn season, it is distinguished by the reliability of obtaining results due to the fact that the object is a closed geometrical space of shallow occurrence.

The invention is illustrated by drawings, in which:

figure 1 shows a top view of a system for implementing a method of mining irrigated technogenic objects at their location, and also shows a plan diagram of further processing of solutions to an environmentally friendly state;

figure 2 shows a cross section of the system;

figure 3 illustrates in more detail the control unit of the process of enrichment of above-sea water.

As shown in FIGS. 1 and 2, a system for implementing a method for working out irrigated technogenic objects at their location can be performed as follows: a group of platforms 4 are placed on the area of the tailings 1 with layers of silt 2 and superficial water 3, each of which is hydraulic and can consist of four parts (A, B, C and D), and on shore 5 of tailing dump 1 are located: pumping manifold 6, central compressor 7, central pump 8, control units 9 and diesel power plants (DES) 10. In figure 1 alleged in any technological process, a system of devices for the standard processing of OL solutions, which are sent for further processing to the sorption workshop 11 and further cleaning from environmentally harmful components - peat cleaning and specialized technologies for cleaning the radionuclide composition are possible, after which there are two options for discharge of water suitable for technical and agricultural use - into a deep well 12, or discharge to the surface 13, and then their processing with a natural reagent capable of granulating to insoluble state of the residual content of environmentally hazardous components.

As shown in FIG. 3, each control unit 9 comprises a compressor 14 and a pump 15 connected by hoses 16-1, 16-2, 16-3, 16-4 and 16-5 to a pressure distribution unit 17 to which the hose braid is connected 18 platform 4, consisting of four central hoses with valves a, b, c and d, connected to the corresponding parts of the platform A, B, C, D, through which the control process takes place. Hoses with valves a, b, c and d have the ability to connect and disconnect from the distribution unit with 17 American fittings 19. A tee 20 is installed in front of the pressure distribution unit with a fitting, tap and pressure gauge (not shown in the drawing), all hoses are equipped with shut-off valves 21, 22, 23, 24, 25, 26, 27, of which a water meter for metering the injected solvent (not shown) is installed on the tap 24, and a meter for metering the pumped-out PR solution (not shown) is installed on the tap 26 . The pumping manifold 6 is equipped with a nozzle 28 for injecting or draining the solvent, as well as a nozzle 29 for supplying solvent to the perimeter of the tailings 1 through a hose 16-5, a pump 15 and hoses 16-3 and 16-4. The pumping of the finished PR into the pumping manifold 6 and their further transportation are carried out through the hose 16-2, the pump 15 and the hose 16-5. Using a laser diffractometer 30, measurements are made: the depth of the platform 4 and the density of the resulting suspension are measured, and the density of the solvent in the pump manifold 6 is measured with the help of instrumentation 31. The pump 15 is connected to the central DES 10 by an electric wire 32.

The system works as follows:

All preparatory work is carried out on shore 5 of tailing pond 1: installation of equipment and apparatus, assembly of platform 4, installation of pumping manifold 6 and filling it with solvent-reagent, or growing microorganisms.

The platforms 4 are lowered to the surface of the superficial water 3 connected to the control unit 9. When launching, all the taps (a, b, c and d) on the braid of the hoses 18 of the platform 4 should be closed.

During the immersion of the first descent part of the platform 4, the supply of compressed air to the immersed part of the platform 4 is started: through the pressure distributor 17, and then to other parts until the platform 4 acquires a stable floating state. Then each platform 4 is transported by above-water waters to the place of mining of the irrigated technogenic object.

Platform 4 has the ability to float to the surface of above-water waters 3 due to air supply. The immersion of the platform 4 in the sludge 2 occurs due to the displacement of air by suspension or superficial waters, as well as when the solvent is supplied. When surfacing, each platform 4 has the ability to capture up to 25 m ^{3 of a} mixture of water and sludge of the lower layers of the object and discharge them into the upper layers of above-water waters, forming an easily leachable suspension. Platform 4 is a hollow communicating vessel, divided into four parts A, B, C and D that are waterproofed from each other, which are controlled by compressor 14 and the corresponding valves a, b, c and d.

The immersion of the platform 4 occurs after all the cranes a, b, c and d are opened, and the platform 4 is lowered in the above-water waters 3 to the surface of the sludge 2. A laser diffractometer 30 tracks the depth of immersion and the density of the above-water, using a detector connected to the center platforms 4 through a scythe of hoses 18.

The capture of sludge and above-sea water occurs as follows:

At the end of each dive, when taps a, b, c and d are open, 51 m ^{3 of a} mixture of water and sludge is located in platform 4. When the laser diffractometer 30 has registered the required immersion depth, the taps of two diagonally opposite parts of the platform 4 — for example, the taps a and d are closed, and air is supplied through taps b and c. While the crane 25 is closed, the taps 20, 21, 22 and 24 are open. The pressure gauge on the fitting in front of the valve 20 shows the working pressure of the compressed air supplied. Cranes b and c overlap as soon as platform 4 is in the middle of the path. Thus, the compressed air supplied to the two diagonally opposite parts of the platform 4 (B and C) forms an air cushion that lifts the entire platform and a suspension of 25 m ³ in the other two diagonally opposite parts (A and D).

Platform float air supply

It must be borne in mind that the design of the device involves a large volume of hoses of various diameters and lengths for capturing and moving sludge and water, which are also designed to uniformly supply a large amount of solvent, as well as placing air for ascent. Therefore, the starting (7) and working pressure of the compressor are calculated taking into account the pressure loss (8) during air injection. For example: to ascend a platform

For example, for an object depth of 20 m and a suspension density of 1.15 t / m ^{3, the} starting pressure for surfacing the platform should be 0.23 MPa or 2.3 atm.

ΔР - pressure drop, bar = 5.2

450 is an empirical coefficient.

q _v - productivity, l / s = 160

L - hose length, m = 2560

d - inner hose diameter, mm = 77.7

P - initial absolute pressure, bar = 15

In order to float the device in this case, an operating pressure of 2.5 bar is necessary, for the hydrostatic pressure to be pushed through, the pressure loss on the length and fittings and on the transitions of the hose diameters will amount to a pressure drop of 8.2 bar on the receiver. Total, the starting pressure will be (2.5 + 5.2 + 3.0) = 10.7 bar, with a maximum pressure of 15 bar and an operating pressure of 7.7 bar.

At a productivity of 10 m ³ / min - the compressor operating time for the ascent of the platform is 2 minutes.

Calculation of the mass of cargo and the amount of air required to lift the platform.

For example:

The mass of cargo (M _g ) of one platform, t = 15

Platform Weight supraore water immersion (M _Present) m.

where M _vp - displacement

where V _p - m ³ the body volume of the platform,

ρ _present - t / m ³ , density of above-water

We determine the mass of cargo that will be raised in the above-water waters by 1 m ^{3 of} air according to the formula:

where ρ of _air - t / m ³ , the density of air.

Thus, 1 m ^{3 of} air can lift in the above-sea waters with a density of 1 t / m ³ - 0.998 tons of cargo.

Accordingly, 1 m ^{3 of} air can be lifted in suspension with a density of 1.15 t / m ³ - 1.1487 tons of cargo.

where ρ _suspend - t / m ^{3 the} density of the suspension.

For example:

platform weight = 15 t.

Platform weight in water = 15 t- (8 m ³ × 1 t / m ³ ) = 7 t.

The weight of the sludge in four parts of the platform when the bends-supports are completely filled = 20 m ³ × 2.0 t / m ³ = 40 t

Half of the sludge will be displaced when air is supplied to two parts of the platform, i.e. sludge weight in two parts of the platform, in water = 20 t- (10 m ³ × 1 t / m ³ ) = 10 t.

1 m ^{3 of} air with a density of 129 kg / m ³ can lift 998 kg of cargo in water.

The weight of the platform with sludge during the ascent of the platform (10 t silt + 7 t platform) = 17 t.

Two parts of the platform contain, when air is inflated, 17.6 m ^{3 of} air, which can lift 17.6 m ³ × 0.998 t / m ³ = 17.57 tons of cargo in water for a given platform weight of 17 tons.

Reliable ascent of the platform is possible in 2 minutes, since 20 m ^{3 of} compressed air will be pumped into the device with a compressor capacity of 10 m ³ / min.

Stirring

When the platform 4 ascends, the cranes a and d open and supply compressed air through them for 2-3 minutes, thus a suspension is ejected from parts A and D of the platform 4 into the upper layers of above-water waters, then the whole platform is blown with air. Cranes b and c are closed. After the contents have been ejected, platform 4 is again submerged when all cranes a, b, c and d are opened. The alternating air supply to the diagonally opposite parts of the platform and the alternation of overlapping diagonally opposite parts of the platform during ascent ensures that the contents are captured and then, when air is pumped through all parts of the platform, surface water is the release and mixing of the contents of the object.

Solvent supply

After the devices have registered maximum uniformity and achievement of design values of the density of the resulting suspension, it is necessary to supply the solvent evenly throughout the entire volume of the formed suspension.

The area of the object is ensured by the uniform distribution of the solvent by virtue of the device of the platform 4, in which for every 6.25 m ^{2 there} are two exits for supplying the solvent. Laser diffractometers are also used to uniformly supply solvent along the depth of the object, which measure the immersion depth of the platform.

Since the working area of one platform and the working depth are known, it is necessary to apply the solvent proportionally to the depth in suspension, i.e. dividing the entire volume of the working part of the object and the entire mass of solvent in proportion, distribute the flow of the solution so that one part of the suspension volume accounts for one part of the total mass of the solvent necessary for the leaching process.

The supply of solvent also occurs through the platform 4 using the pump 15 and alternating the supply of air and solvent to the diagonally opposite parts of the platform.

Lightening and pumping out solutions

The clarification of solutions occurs in the perimeter of the object due to sedimentation of suspended particles under the influence of gravity immediately after obtaining the design concentrations of PC in the solution, which are expected from the calculation according to formula (4).

The clarification of the solutions will last from 7 to 14 days, after which the pump 15 is turned 180 ° and the solutions are pumped out through the hose 16-2, the pump 15 and the hose 16-5, brought to the lower hole 27 in the pumping manifold 6.

Surface pumps ХЦМ 20/25, 20 m ³ / h with a pressure of 25 m are the most convenient to use for the proposed pumping of solutions.

The solution is pumped to the pump collector 6. According to it, using the central compressor 7 and the central pump 8, the solutions are transported to the sorption workshop 11 to obtain commodity regenerates.

The proposed method allows to obtain in a short time (up to four months) a large number of productive solutions containing industry-important and strategically important PCs, including Au, U, Re, W, Cu. In addition, the proposed method allows to simplify the management of the metal beneficiation process, reliably and in a short time to clean the insoluble residual sludge content of the processed objects from environmentally harmful components, and thereby increase the profitability of the leaching process and the environmental safety of the regions.

In addition, the proposed method allows you to cover during mining the entire area and volume of the industrial object at the same time.

It will be apparent to one skilled in the art that various modifications and changes are possible in the present invention. Accordingly, it is intended that the present invention covers the modifications and variations as well as their equivalents without departing from the spirit and scope of the invention disclosed in the appended claims.

Claims (2)

1. A method of working out irrigated technogenic objects at the place of their occurrence, including the formation of an easily leachable suspension, obtaining design contents of useful components (PC) in the form of productive clarified solutions, characterized in that the mining mass (GRM) is transformed into a permeable state to obtain design contents of PC mixing it with the water component of the irrigated anthropogenic objects until a design density suspension is formed in the volume of above-water at the location of the timing, after which the SC GR is transferred to the ionic state by mixing suspensions with the optimal solvent until the design concentrations of PC are formed at the timing site, after reaching the design PC concentrations in the solution, the suspension is settled in the same volume of the industrial object until the solution is clarified, and after clarification, the solution is transported to a sorption workshop for further processing and receiving commodity regenerates. 2. The method according to claim 1, characterized in that during the formation of a readily leach suspension, sludge of irrigated technogenic objects is used as a timing belt.

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