Development method of gravel deposits of mineral resources

FIELD: mining.

SUBSTANCE: method involves delineation of balance and industrial reserves as per the data of exploration wells, drilling and mining activities; re-delineation of industrial reserves is performed after their delineation along the top of sands. At that, new contour at excavation of rock mass is set from cross point of exploration well with initial contour of industrial reserves at minimum elevation of balance reserves as to top of bed of sands to cross point of contour of balance sands-peat reserves at an exit angle of excavating transport vehicle of stripping equipment, and where there are no cross points of new contour with contour of balance reserves as to top of bed of sands - parallel to initial contour of industrial reserves.

EFFECT: reducing operating losses of useful component.

1 dwg

 

The invention relates to mining and can be used in the development of mineral deposits, mainly for the development of placer deposits in an open way.

The known method of placer developments, which do not produce Stripping and mining complex carries out simultaneously the excavation of peat and sand (Leshkov VG Theory and practice of development placers mnogozachatkovye dredges. - M.: Nedra, 1980, s).

The disadvantages of this method are: significant metalliferous ore Sands; the reduction of mineral extraction with 1 m2rock mass; depreciation of mining equipment, increasing the cost of production, leaching and enrichment of the Sands, and also the period of mine.

The closest in technical essence and the achieved result for the proposed method is a method of placer developments with jurisdiction Stripping, and the contour of industrial stocks in the top of reservoir Sands set horizontally with a mark depending on the technical, geological and economic factors (Varicak M.I., Nadolski V.I. Optimization of parameters of open pit mining of placer deposits. - M.: Nedra, 1985, p.76-78).

The disadvantages of this method are significant technological losses of useful information about components is that with peat overburden. This is due to the fact that the top layer of sand is raising and zapadenia (due to uneven distribution of the useful component), and the border industrial stocks is thus that part of the reserves is located above the path of industrial stocks in the top of reservoir Sands. Contour industrial stocks on the top of reservoir Sands set horizontally, with optimization level, the maximum obtained by the company from the sale of useful component of profit.

The present invention is the reduction of operating losses of useful component.

This is achieved by the fact that in the method of mining of alluvial deposits of minerals, including delineation of balance and industrial stocks according to exploration wells, Stripping and mining operations, after contouring industrial stocks on the top of reservoir Sands produce their periodontoclasia, with the new path when the excavation of rock mass set from the point of intersection of the exploration wells with initial loop industrial stocks with a minimum mark of balance reserves on the top of reservoir Sands to the point of intersection of the path of balance reserves of sand-peat at an angle of departure of earth-moving equipment Stripping equipment, and where there is no intersection of the new contour with the contour of avansovyh stocks on the top of reservoir Sands - in parallel to the original path of industrial stocks.

The distinctive characteristics ensure the convergence of the contour balance reserves on the top of reservoir Sands and contour industrial stocks with the possibility of Stripping operations, because the slope of the proposed circuit within doing Stripping does not exceed the angle of departure of earth-moving equipment. The maximum convergence of the contours balance and industrial stocks provides minimum operating loss of useful component with peat in the conduct of Stripping and minor ore Sands.

The invention is illustrated by the drawing, which shows a diagram of the development,

where

1 - contour balance reserves on the top of reservoir Sands;

2 - loop industrial stocks;

3 - a new path, taking into account the angle of departure of earth-moving equipment Stripping equipment;

4 - the spacing of the sides of the reservoir Sands;

5 - the spacing of the flanges on the turf, taking into account the angle of departure of earth-moving equipment;

6 - new spacing flanges on peat;

And the point of intersection of the exploration well and the initial contour of industrial stocks with a minimum elevation contour balance reserves on the top of reservoir Sands;

B - the point of intersection of the contour balance reserves of sand-peat at an angle to the first is Yes earth-moving equipment Stripping equipment.

The method is as follows. According to the results of exploration and established conditions hold circuit balance reserves on the top of reservoir Sands 1. Then perform the contouring of industrial stocks 2 with spacing flanges on the reservoir Sands 4 and peat 5, taking into account the angle of departure of earth-moving equipment. To ensure maximum convergence contours balance and industrial stocks with minimal operational losses of useful component with peat in the conduct of Stripping and minor dilution Sands produce periodontoclasia industrial stocks, which produce from the point of intersection of the exploration well (SC-2) with initial loop industrial stocks 2 when the minimum elevation contour balance reserves on the top of reservoir Sands 1 (point a) to the point of intersection of the path of balance reserves of sand-peat 1 at an angle of departure of earth-moving equipment Stripping equipment (point B).

The trajectory from point a to point B is a new path 3.

After crossing the new circuit 3 circuit balance reserves 1 (B) his conduct in parallel to the original path of industrial stocks 2 with spacing flanges on peat 6.

This method provides a reduction in operating losses of useful component and time is of borovnia metalliferous Sands, that leads to lower production costs.

The method of mining of alluvial deposits of minerals, including delineation of balance and industrial stocks according to exploration wells, Stripping and mining operations, characterized in that after contouring industrial stocks on the top of reservoir Sands produce their periodontoclasia, with the new path when the excavation of rock mass set from the point of intersection of the exploration wells with initial loop industrial stocks with a minimum mark of balance reserves on the top of reservoir Sands to the point of intersection of the path of balance reserves of sand-peat at an angle of departure of earth-moving equipment Stripping equipment, and where there is no intersection of the new contour with the contour balance reserves on the top of reservoir Sands - parallel to the initial path of industrial stocks.



 

Same patents:

FIELD: mining.

SUBSTANCE: method involves stripping operations, excavation and transportation of sands with bulldoser to vibration screen with further feed of sands to the receiving sump and further transportation to mineral processing equipment. Receiving sump is formed in the form of a pit drilled to the rock bed along the circuit of reserves and longitudinally separated with a pillar into two semi-pits: one is meant for sand storage, the other one is meant for boulders; screen is installed on sand supply side with possibility of its being moved along the pit with an inclination providing boulder movement to the second semi-pit.

EFFECT: increasing the efficiency of mining equipment at development of boulder gravel mineral deposits owing to extraction of boulders to specially prepared space.

3 cl, 2 dwg

FIELD: technological processes.

SUBSTANCE: invention relates to mining industry and may be used to develop natural and anthropogenic high-clayey gravel deposits of minerals with high content of fine and thin gold. The method of acoustic and hydraulic pulse softening and disintegration of high-plastic clay sands of gold-bearing placers includes placer opening, formation of an accumulator, softening of clay sands with the help of water supply and subsequent filtration process, assembly of a plant of discharge hydraulic transportation of the hydraulic mixture. Hydraulic washing of sands is carried out with subsequent free-flow supply of a hydraulic mixture into the accumulator and subsequent pressure hydraulic transportation of the hydraulic mixture to the system of washing and sizing, which is coupled with an additional accumulator by means of a mechanism that supplies the sized hydraulic mixture. Periodic acoustic exposure is carried out with directed radiation of 20 kHz frequency and intensity from 5 to 10 W/cm2 to a large-sized solid component of the hydraulic mixture in the additional accumulator before and after periodical hydrodynamic exposure of pulse loads generated in case of high-voltage electric breakthrough and producing voltage with exceeding the limit strength of the solid component of the hydraulic mixture depending on its water saturation. Number of charges is determined on the basis of the specific size of the largest piece.

EFFECT: increased efficiency of damage and disintegration of clay sands of placers.

1 dwg, 1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to mining and may be used in developing natural and technogenic placer deposits of natural resources with increased content of fine and thin gold. Proposed method comprises deposit opening, producing sump, weakening rocks by feeding water and filtration, and mounting pipeline transport of hydraulic mix with pumps with hydrodynamic cavitation agitator. Pre-loosened mined rock arranged in sump first section by bulldozer agitator is subjected to ultrasound at frequency of 20 Hz and intensity of 10 to 20 W/cm2. Water is forced into sump first section in amount making 0.15 to 0.3 of volume content of rocks lumps at porosity of 26 to 40% to act by ultrasound with 20 Hz-frequency and 10 to 20 W/cm2-intensity onto hydraulic mix and feeding said mix to system of jetting and grading with pre-disintegration by hydrodynamic cavitation agitator. Simultaneously with loosening mined rock in first section, second sump section is filled with loosened mined rock. Jetting and grading with barren rock and feeding hydraulic mix in additional sump are performed for additional saturation with water. Water is additionally fed into additional sump with the solid-to-liquid ratio of 3:7 to act by ultrasound with 20 Hz frequency and 10 to 20 W/cm2 intensity onto hydraulic mix solid component in additional sump.

EFFECT: higher efficiency and environmental safety.

2 dwg

FIELD: mining.

SUBSTANCE: method includes definition of coordinates of receiving hopper location and arrangement, definition of average transportation distance at specified receiving hopper location and on the basis of this information technical and economical parameters of ground development, rock straight movement towards receiving hopper by bulldozer, washing and extraction of mineral resource. Note that average transportation distance is defined as weighted average distance from receiving hopper to all points of the ground of random configuration and area S at zero point located at hopper location point.

EFFECT: improvement of excavation equipment effectiveness and decrease of daylighting and mining activities prime cost at placer mines development.

2 dwg

FIELD: mining.

SUBSTANCE: development method involves drilling of ditches with arrangement of removed peats in external dumps, melting of permafrost sands in natural way, movement of sands with excavating equipment, development of sands with a drag in longitudinal adjacent ways. Development of terrace placers above flood-plains is performed in steps in longitudinal strips with piling of peats in internal longitudinal dam constructed in the area of excavated sands. For rising the water level in drag section and flooding of sand molten in natural way, for the purpose of their being protected against season freezing, not only longitudinal transport dams, but also longitudinal dam built from removed sands and transverse dams built from overburden peats are used. Area of removed sands is created by driving advance longitudinal trench and by dragging sands with slanting (non-symmetrical) working face in adjacent area developed with primary travel of the drag.

EFFECT: invention allows increasing development efficiency of terrace placers.

9 cl, 3 dwg

FIELD: mining.

SUBSTANCE: first bottom is divided as to width into two parts. Drain is performed on one part. At that, river bank is protected by means of a berm against washway. Extraction of aggradational deposits is performed in opposite part of the first bottom. Works are carried out in two stages without violation of boundaries of coastal zone and safety berms during the pre-freshet period: mined rock is extracted at the first stage parallel to water drain; at the second stage, by means of inclined working (trench) at an angle close to 90 there knocked down is water drain and worked-out area of open-pit mine, water drain is shutoff downstream, and during the freshet period there performed is controlled aggradation of burdens of river drift to the worked-out area of open-pit mine.

EFFECT: enlarging production volumes on restricted surface areas without violation of boundaries of coastal zone owing to regeneration and recovery of stock.

1 ex, 1 tbl, 2 dwg

FIELD: mining.

SUBSTANCE: in method to form lane in winter period, including laying of heat insulation material onto water surface in the form of balls arranged as hollow with rigid plastic or silicon shell, besides, required quantity of balls per 1 m2 of water surface is determined using mathematical formula.

EFFECT: reduced environmental damage done to ambient water medium and prolongation of production season in winter period.

1 ex

FIELD: mining.

SUBSTANCE: method involves opening and arrangement of peats, processing of solid placer sections with dragging equipment and formation of dumps of waste sands. Development of placer in each section is performed after overburden operations and arrangement of peats in external dumps with bulldoser equipment with arrangement of waste sand dumps in worked out area at common border of two adjacent runs.

EFFECT: increasing development efficiency of clay sands.

6 dwg

FIELD: mining.

SUBSTANCE: invention relates to mining and may be used for development of natural and technogenic high-clayey gravel deposits of minerals with an increased content of fine-grained and disperse-grained gold. The method involves deposit opening, digging a water supply trench slanted towards the deposit stratum drop and a water collection trench; the accumulator trench is dug between the area under development and the water collection trench. One mounts the suction device of the delivery hydrotransportation installation, mounts an ultrasonic installation relative to the accumulation trench, consistently intensifies filtration of water into the clay sands within the flooded area on the surface and by way of hydrodynamic activation and performs cutting the water saturated sand layers with the hydrodynamic equipment cutter elements, additional hydrodynamic initiation and ultrasonic impact on the hydromixture in the accumulation trench in the low frequencies band providing better effect of hydromixture particles displacement and ultrasound radiation intensity 5 W/cm2 or more.

EFFECT: improved efficiency of destruction and disintegration of deposit clay sands.

1 tbl, 2 dwg

FIELD: mining.

SUBSTANCE: invention relates to mining and may be used for development of natural and technogenic high-clayey gravel deposits of minerals with an increased content of fine-grained and disperse-grained gold. The method for softening and disintegration of shallow deposit clay sands involves deposit opening, digging a water supply trench slanted towards the deposit stratum drop and a water collection trench of a depth with a difference of bottom marks in the trenches from 1.5 to 3 m, filling the water supply trench with water with simultaneous water-filling of the deposit area under development to a depth sufficient for mounting and installation of equipment in a floating state and subsequent maintenance of the level for primary softening of clay sands by way of supply of water through an adjustable shutter, mounting the delivery hydrotransportation installation, process of natural filtration of water into the bulk. One mounts an ultrasonic installation and a mechanical installation. Successively one intensifies filtration of water into the compacted sand strata by way of ultrasonic impact on the sands along the surface of the site being developed by means of radiation in the interval of low ultrasonic frequencies ensuring maximum amplitude of displacement of compacted sand particles and radiation intensity parameters creating stress-strain tension, resistance to rupture and shear exceeding the normative data for deposit frozen sands strength. One performs intensification of disintegration of water-saturated sand surfaces with ultrasound at the same radiation frequency but reduced parametres of ultrasonic radiation intensity corresponding to the averaged equilibrium density and compressibility of water saturated sands. Then one performs hydrodynamic activation by way of mixing the hydromixture with an element of the mechanical installation and supply of the hydromixture with the help of the delivery hydrotransportation installation to the concentrating installation.

EFFECT: improved efficiency of destruction and disintegration of deposit clay sands.

2 dwg, 2 tbl

FIELD: mining industry.

SUBSTANCE: device has screw, having transporting spiral ribbon held on the shaft. Equipment is provided with U-shaped chute and perforated drum with armature in form of screw ribbon, having curvilinear shape in cross-section, arched in the direction of movement. Drum is mounted in upper portion of U-shaped chute. In its lower portion a screw is mounted.

EFFECT: higher productiveness.

3 dwg

FIELD: mining industry, particularly for open-cut steeply dipping or inclined deposit development.

SUBSTANCE: method involves excavating pit up to design depth reaching by sliced benches; moving the benches as ore deposit is developed; cutting ore and debris; loading thereof on conveyance means to move ore to ground surface, wherein as pit is deepened conveyer systems are used; on reaching the design pit depth deposit is divided into slices and the slices are developed with minimal ore losses in triangular zones with negligible interaction in peripheral face by developed slot raise technology usage; reinforcing slopes with anchors and metal mesh at deep horizons where berm cleaning is difficult; performing slice cutting though the full ore body thickness at design pit bottom and conveying the cut ore to surface by steeply inclined conveyers and combined transportation means. In the case of ore development in slices having lesser thickness below pit bottom steeply dipping and vertical side part are built, concrete wall and metal mesh adapted to hold wedge-like lumps in the presence of potential caving, wherein in this case mining equipment is used and ore cut from underground layer is crushed in crushing mills located on main loading and transportation horizons and delivered to ground surface by conveyer or skip shaft. Mined-out space is filled with rock refuse at terminal stage.

EFFECT: increased efficiency of mineral extraction, reduced cost of deposit development.

8 dwg, 1 ex

FIELD: mining industry, as well as hydraulic, road, agriculture and other building, particularly to perform open cast mining and other woks by rock loosening.

SUBSTANCE: method involves obtaining information concerning main and structural-and-strength rock properties on the base of estimation of data of primary and post-authorization prospecting, as well as production prospecting; detailed rock zoning to separate production blocks and unit blocks characterized by uniform rock at borders thereof; writing computer program; automatically loosing rock of each unit block by most effective method, namely by mechanical, pneumatic, blast drilling or physical one performed with the use of all-purpose mobile rig tools. Above rig includes computer system, device provided with one, two or three replaceable teeth, with plate-like metal pins and with hydraulic cylinders. The rig also has device adapted to create holes in unit block and wedge out thereof, drilling device and charging device, laser charge initiation system, local shelter with damping means, device for rock cutting by applying pressurized air and impacts to rock and auxiliary excavation device.

EFFECT: increased efficiency of rock preparation for further cutting and loading and for solid mineral field development as a whole.

1 dwg

FIELD: mining industry, particularly to develop watered placer deposits and technological mineral deposits under permanent negative temperatures of ambient air.

SUBSTANCE: method involves performing preparation and production works, mineral processing and refuse stacking operations. To implement above method dam is built around mining equipment and deposit to be developed prior to air temperature reduction to negative value; installing sled-mounted hangar having transparent heat insulated roof over the dam and performing all above mentioned works and operations inside the hangar.

EFFECT: increased efficiency of production and processing equipment.

2 cl, 1 ex

FIELD: mining industry, particularly for co-developing salt and platinum deposits.

SUBSTANCE: method involves detecting presence of platinum in non-soluble salt residue salt during salt deposit development; performing geological mapping of salt-bearing cavity and determining sand distribution in stratum above salt layer; drilling wells and bore pits and taking samples to determine platinum content; contouring sand deposits bearing platinum with concentration suitable for industrial development; cleaning surface; blocking out and excavating platinum-bearing sand; directing above sand to gravity separation plant; tying thereof with water in gravity separation plant to separate platinum therefrom.

EFFECT: increased complexity of deposit development.

FIELD: methods of surface mining, particularly for following natural stone treatment by covering or impregnating thereof with liquid or other flowable substances on surface.

SUBSTANCE: method involves gunning salt pit surface with waterproofing agent; covering salt pile surface with clay-and-salt mud layer in dry and hot season after salt pile hardening in at least 1.0-1.5 months after pile filling with salt. The clay-and-salt mud is sylvinite ore-dressing waste obtained from chemical factory. The clay-and-salt mud layer has 10-20 mm thickness and is formed by gunning salt pile surface with above mud material. The clay-and-salt mud is supplied into pneumatic pump receiver, wherein solid/liquid phase ratio is 1:2 - 1:3.

EFFECT: increased efficiency of salt pile waterproofing.

FIELD: agricultural; devices for treatment.

SUBSTANCE: the invention is pertaining to the field of clarification of water at the industrial development of the placer deposits with utilization of the wastes of the timber loggings and extraction of the finely dispersed gold from the water runoffs of the gold mining. In the bed of the diversion channel they form the firebreak out of the filtering material containing the wood sawdust mass subjected to the preliminary sorting at the vibration installation and having the ratio of the fractions from 1 to 5 mm up to the fraction from 5 up to 15 mm as 1:3 and packaged in the netted forms made out of the wire skeleton. After the water clarification the wood sawdust mass is subjected to dehydration by pressing and to drying and incineration for extraction of the fine fractions of gold. The technical result of the invention is the increased efficiency of the water clarification and extraction of gold.

EFFECT: the invention ensures the increased efficiency of the water clarification and extraction of gold.

1 dwg

FIELD: mining industry, possible use during extraction of natural and man-made gravel deposits of both mineral resources of high density (gold, platinum, etc), and valued minerals of low density.

SUBSTANCE: method for softening and disintegration of argillaceous sands of gravel deposits includes driving a water-feeding trench, driving a water-collecting trench in 80-100 meters along direction of fall of deposit bed in parallel to water-feeding trench, depth of water-collecting trench providing for difference of bottom levels in trenches 1,5-3 meters, filling water-feeding trench with water and recharging it to maintain constant water level by means of gate and spillway with raised spillway gate, building walling dam 1-1,5 meters high, limiting the part of deposit being processed in plan, with spillway, after that outputs of filtration flow into water-collecting trench are constructed which are fixed by wetting of upper slope for height of 1-2 meters, then spillway gate is lowered onto spillway spine, and that part of deposit is flooded with water for depth of 0,8-1,3 meters and this level is maintained for initial softening of argillaceous sands of gravel deposits, after that dredger plant is assembled, consisting of suck-in line with suction device, dredger itself and force sludge duct. At the end of force sludge duct, vortex generator is mounted together with hydrodynamic cavitator, due to which during launch of operation of dredger plant argillaceous sands of gravel deposits along the way from face and suction device of dredger to hydrodynamic cavitator are subjected to second stage of softening and disintegration, and in hydrodynamic cavitator - to third-stage final disintegration, and then are dispatched to dressing plant.

EFFECT: increased productiveness and extraction efficiency during extraction of natural and man-made gravel deposits due to efficient softening and disintegration of argillaceous sands of gravel deposits and release of valued components during hydro-transportation of sands to dressing equipment.

2 dwg

FIELD: mining industry.

SUBSTANCE: said geotechnological complex incorporates a trestle with a tumbling bucket, a tumbling module with a chute located inside the closed loop of trench for disintegrated rock accumulation. The chute is directed along the rock inflow. The tumbling bucket installation provides for possibility of linear and angular displacement in the vertical plane; the bucket has slots and L-shaped rippers.

EFFECT: improved efficiency of mining due to intensification of disintegration of rock with complex physical and mechanical properties during dredging and placer mining.

5 dwg

FIELD: mining industry.

SUBSTANCE: said complex is provided with a supported trestle and an ultrasonic and mechanical tumbling module. Rotatable ultrasonic radiation module is connected to movable carriage rim by means of a hub and sliding supports. The movable carriage is provided with a drive for moving it along the trestle cross beam and a drive for turning the ultrasonic radiation module around the movable carriage yoke axis. The rotatable ultrasonic radiation module has drives for moving the ultrasonic sources in the vertical plane, a dual drive for moving the ultrasonic sources in horizontal plane, sensors to determine the rock physical and mechanical state, and communication links with functional module of disintegration process automatic control system.

EFFECT: improved efficiency of mining due to intensification of disintegration of rock with complex physical and mechanical properties during dredging and placer mining.

2 dwg

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