Method to process metalliferous sands of coastal marine shelf and complex for its realisation

FIELD: mining.

SUBSTANCE: method includes erection of a dam on a coastal shelf in a zone of tide with formation of tide water accumulator, installation of an enrichment device of a lock chamber into a dam body with the possibility of tide water overflow into an accumulator and back, extraction of sands of beach deposits, their transportation to surface of the dam with supply to the enrichment device and further washing with reciprocal overflow of sea water, removal of the produced concentrate at the minimum level of tide. The complex of processing of metalliferous sands of the coastal marine shelf comprises a hydraulic engineering structure in the form of a dam made with a marine water accumulator, an enrichment device of a lock chamber type, installed in the dam body to form a through reciprocal overflow of the tide sea water into the accumulator and back, a classifier installed above the lock chamber higher than the maximum level of tide. The lock chamber is equipped with a catching cover.

EFFECT: development of a method and a complex for processing of metalliferous sands directly in a coastal area of a marine shelf with reduction of costs for water treatment and water supply for the enrichment process.

2 cl, 6 dwg

 

The invention relates to mining, namely the development of alluvial deposits of the coastal shelf and can be used in the extraction of valuable components of precious and rare metals, such as gold, platinum, ilmenite, zircon and other coastal beach deposits.

There is a method of extraction and processing of metal-bearing Sands of the placers, which includes the construction of hydraulic structures in the form of dikes, dams, river bed diversion ditches, dredging original Sands, their transportation to the place of processing, classification, classified submission sand and water processing equipment type gateway for washing in hydrodynamic flow, removal of tailings and concentrate (see Shorokhov S.M. in Technology and comprehensive mechanization of the development of placer deposits. M.: Nedra, 1973, p.124-134; Shorokhov S.M. Development of placer deposits. M: Metallurgizdat, 1948, s-87).

Known systems for processing Sands, including excavation, transporting, classifying device of the source of sand, water supply system, a processing device in the form of a gateway, equipment removal processing tailings and concentrate (see ibid p.23-34 - flush installation or dredge; Leshkov VG Theory and practice of development placers mnogozachatkovye dredges. M.: Nedra, 1980, p.36, 100-101).

The disadvantages of these solutions ablauts the high costs of water treatment and water delivery processing process, remove tails leaching, and in the processing of metal-bearing Sands of the coastal-marine shelf - transportation source sand from areas of periodic flooding by the sea tides, the limited efficiency of the complex in the zone of tidal action and otlishnogo water flow of the coastal and marine shelf.

The technical result of the invention is to develop a method and system for processing metal-bearing Sands directly in the coastal zone of the sea shelf of reducing costs vodopodgotovka and water delivery processing process.

The essence of the invention is that the method of processing metal-bearing Sands of the coastal shelf includes the construction of a dam on the coastal shelf zone of the tide with the formation of the drive tidal water, installation of the processing device type airlock in the body of the dam, with the possibility of tidal flow of water into the drive and back, dredging sand beach sediments, their transportation to the surface of the dam with the filing and processing device and the subsequent washing of the reciprocating flow of sea water, removing the resulting concentrate at the lowest level of the tide.

The invention also lies in the fact that the complex processing of metal-bearing Sands of the coastal shelf contains the hydraulic structure in the form of dams, built on the coastal shelf in the tidal zone and otlishnogo flow and storage of sea water, concentrating device type airlock installed in the dam body with the formation of through the reciprocating flow of tidal sea water into the drive and back, classifier, placed over the gateway of the camera above the maximum water level, and the airlock is equipped with a catching surface.

The complex is also the fact that the airlock is further provided with a hopper mounted under the gateways and the gateways is made to rotate around its longitudinal axis and provided with double-sided catching cover the bottom.

The construction of a dam on the coastal shelf reduces the cost of transporting the original Sands of the flood zone of the sea tide, where they are hollow, and through the placement of the processing device type airlock with a catching surface in the dam body below the level of the tide, allows you to generate reciprocating was that promotes leaching and enrichment coming through the classifier Sands, with the resulting tails are blurred on coastal beach. In aggregate, the proposed solution reduces the cost of water treatment, water supply and remove tails at first is the development of metal-bearing Sands due to the natural process directly in the area of periodic flooding.

Figure 1 shows the layout of the dam in the coastal zone of the sea shelf and diagram mashpotato during high tide; figure 2 - the same, at low tide; figure 3 - the same, in the section along a-a; figure 4 is a section along b-B of figure 3; figure 5 is a cross section of lock camera with swivel locks and hopper; figure 6 is a variant of the construction of the dam using the terrain.

Implementation of the proposed method is as follows (see figure 1-4, 6). On the coastal beach area of sea shelf built a dam, and the contour of the dam in the plan, depending on the terrain, forms a drive sea water (Fig 1, 3). In the body of the dam is set enrichment device flow type (gateway), with pass-through the reciprocating flow of sea water into the drive (rush, 1) and back (ebb, figure 2). During the ebb removed (cut off) the original Sands of coastal marine sediments of the beach, for example, a scraper and transported to the surface of the dam, where they then moved to the classifier, for example, a bulldozer. The small fraction that passes the classifier gets into the processing device forming mesophotic getrowsize protocom sea water in storage (surge) and back (ebb) with gravitational separation of the solid phase: light fraction is washed away by gravity to the dump, heavy what I faction settles, for example, in a capture coating airlock, where the resulting concentrate is periodically removed. Coarse fraction from the classifier the blade is removed, for example, a bulldozer, where she is under the action flow together with a small fraction partially eroded along the beach.

Complex mining and processing of metal-bearing Sands of the coastal shelf is (see Fig.1-4) from dam 1, the contour of which in terms of forming the drive sea water 2. In the body of the dam is set classifier 3 and processing device of a type of lock chamber 4 with a catching cover 5. Moreover, the airlock 4 with a catching cover 5 is set lower, and the classifier 3 above the maximum water level one below the other. The surface of the dam is arranged to travel from the place of excavation of the original Sands to the classifier, excavation and hauling equipment, such as scrapers 6, 7 bulldozers or location on it transporting devices. Below airlock formed dumps tailings leaching 8. Airlock can be done with the swing gateways 9 around its longitudinal axis by 180 (see figure 5) and the receiving hopper 10 and accumulation of heavy fractions with hydraulic ejector 11 for removal of the concentrate. And catching cover 5 rotary gateways on both sides have opposite orientation in the threaded depending on the direction of the flow of water (high tide or low).

The operation of the device is performed in the following sequence. Cut layer shore beach sediments offshore excavation equipment, for example, scraper, bulldozer and transported to the surface of the dam 1 (1-4) to the classifier 3, where a large fraction of sand facing the blade 8, and a small fraction enters the lock chamber 4, where eroded reciprocating (tidal otlivnyy) flow of sea water. Light fraction is washed away by the flow in the blade 8, and the heavy fraction is deposited on catching the floor of the gateway 5, where it is periodically removed. If the camera is equipped with 4 swivel gateways 9 and the hopper 10 (Fig 5), depending on the flow direction (tide, low tide), will change the safety coatings by the rotation of the gateway. The heavy fraction with a catching of the coatings after the turn of the gateway enters the hopper 10, where it is periodically removed, for example, a hydraulic ejector 11 for further enrichment (debugging).

The proposed solution allows to involve in the processing of coastal beach deposits of the sea shelf, rich in content placer gold, platinum, cassiterite and other minerals formed due to the natural enrichment process of the tide, which is observed on the coasts of the Far East, Kamchatka, Alaska, and thus to expand mineral-materials the new database.

1. The method of processing metal-bearing Sands of the coastal shelf, which includes the construction of a dam on the coastal shelf zone of the tide with the formation of the drive tidal water, installation of the processing device type airlock in the body of the dam, with the possibility of tidal flow of water into the drive and back, dredging sand beach sediments, their transportation to the surface of the dam with the filing and processing device and the subsequent washing of the reciprocating flow of sea water, removing the resulting concentrate at the lowest level of the tide.

2. Complex processing of metal-bearing Sands of the coastal shelf containing hydraulic structure in the form of a dam, built on the coastal shelf in the tidal zone and otlishnogo flow and storage of sea water, concentrating device type airlock installed in the dam body with the formation of through the reciprocating flow of tidal sea water into the drive and back, classifier, placed over the gateway of the camera above the maximum water level, and the airlock is equipped with a catching surface.

3. Complex processing of metal-bearing Sands of the coastal shelf according to claim 2, characterized in that the airlock is further provided with a hopper, us is set out under the gateways, moreover, the gateway is configured to rotate around its longitudinal axis and provided with double-sided catching cover the bottom.



 

Same patents:

FIELD: mining.

SUBSTANCE: in the method to mine gravel deposits, including contouring of balance reserves by data of exploration wells, opening of a sand bed, performance of opening and production works, after contouring of balance reserves the opening works are carried out with solid transverse trips into a dump to the level of the maximum elevation of the balance reserves contour. Production works are started by slabbing with a bulldozer in the area of the maximum elevation of the balance reserves contour with transportation of sands into a mined space. Each subsequent lifting of the balance reserves contour is mined in the similar manner, peats located between lifts of the balance reserves contour are transported through slabbing with secondary displacement into the dump.

EFFECT: reduced operational losses of a useful component.

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FIELD: mining.

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5 cl, 3 dwg

FIELD: mining.

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EFFECT: ensuring stability of open pit side and rising safety level of mining operations.

3 dwg

FIELD: mining.

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EFFECT: improved performance indices of sands processing, reduced losses of fine gold, lower processed volumes.

2 dwg

FIELD: mining.

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1 dwg

FIELD: mining.

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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.

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1 dwg, 1 tbl

FIELD: process engineering.

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EFFECT: higher efficiency and environmental safety.

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FIELD: mining.

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9 cl, 3 dwg

FIELD: process engineering.

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2 cl, 4 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to classification of solids with the help of fluids and may be used in concentration of minerals, etc. Proposed method comprises loading fluid with raw stock onto inclined trough top with irregularities arranged on its edges, creating directed flow of pulp by restricting pump flow height at bottom of said inclined trough using overhead cover arranged above said irregularities and directing main pulp flow upward via discharge tube, separating raw stock particles into fractions using reciprocation of working surface with sharp accelerations, discharging obtained fractions at working surface bottom and selecting optimum conditions of classification. Overhead cover arranged above aforesaid irregularities is provided with magnetic fraction accumulator. Outlet is arranged sideways of irregularities provided with magnetically conductive tube to displace magnetic fraction in appropriate accumulator. Magnets are secured above said overhead cover to force mixing of powder material and displacing it toward aforesaid outlet and, therefrom, into aforesaid accumulator.

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FIELD: technological processes.

SUBSTANCE: invention relates to mining industry, to dressing of sands of gravel deposits and may be used to develop gold-containing sands. The sluice for sands dressing consists of an inclined bottom with boards, opened at the side of the lower part, trap elements in the form of solid steps fixed on the bottom, a drive of oscillations and a sprinkler. The bottom with the boards is installed with the possibility to vary the angle of inclination up to the negative value, when its rear part is higher than the front one. Solid steps are only installed in the rear part of the bottom. Other steps are made as interrupted, made of alternating walls and spaces between them, besides, walls of adjacent steps are installed in a staggered order. In front of the lower solid steps there are grooves made with unloading holes, under which at the lower part of the bottom there are cassettes with tubes arranged as capable of longitudinal displacement, inner diameters of which are not less than the diameters of holes, and centre-to-centre distances between tubes are equal to centre-to-centre distances of the holes. On top on the bottom there is a harrow with teeth fixed on rods arranged between steps aside from the grooves. Drive of oscillations is only connected to the harrow.

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2 cl, 6 dwg

Dressing sluice // 2432996

FIELD: technological processes.

SUBSTANCE: invention relates to the area of gravity dressing of minerals, in particular, to devices for separation of materials in water by density, and may be used to separate complex ores that contain powdered and plate metals and minerals. A sluice for gravity dressing of minerals in a movable water flow is made in the form of at least one pipe with longitudinal section in the form of a sinusoid wave, which is inclined to the horizontal line and is connected with its upper end to a source of pulp, and with its lower end - to a facility for discharge of mill tailing into a dump. At the upper point of upper half-waves of the pipe there is a rectilinear section. The lower half-waves, which are the cells for collection of concentrate, have a loosening mechanism and a facility for discharge of concentrate.

EFFECT: increased efficiency of heavy fraction minerals extraction and separation of each single mineral fraction in a specific fixed section of the sluice, and also increased productivity and simplicity in design and maintenance.

1 dwg

FIELD: mining.

SUBSTANCE: invention refers to design of sluices for extracting fine dispersed minerals of gold, mercury and such like materials by gravitational settling from pulp flow and by additional extraction of ferromagnetic particles of magnetite, ilmenite, iron, cast iron, steel and iron scale as by-products by means of magnetite separators. In particular, such sluices are suitable for development of crumbled wastes of certain mining and metallurgical productions and ashes of heat electric power stations operating on solid fuel. The sluice of extracting heavy minerals from pulp consists of: at least one main running chute out of non-ferromagnetic material inclined to horizontal for flow of pulp containing mixture of particles of heavy minerals and random impurities. In its operating position the chute with its upper end is connected to the a pulp source, while with its lower end it is connected to a device withdrawing rejects to a dump. A cellular mat placed on a bottom of the main running chute catches and accumulates concentrate of heavy mineral in cells. Also the sluice consists of at least one complete set of kinematically tied rigid non-ferromagnetic templates of shallow filling arranged between boards of the main chute above the said mat and connected to at least one drive of reciprocate transportation along the boards of the chute and the mat. Each template of the set has lengthwise and cross riffles. There is at least one additional and also inclined to horizontal non-ferromagnetic chute for dumping and for separate withdrawing ferromagnetic particles extracted from pulp flow in the main chute. In an operating position the additional chute is coupled with a collector of ferromagnetic concentrate. The sluice is equipped with at least one magnetic separator mounted above the chutes. The separator performs step rotation and reciprocate transportation and is designed on base of least two controlled electro-magnets for catching ferromagnetic particles from pulp flow in the main chute and for their transfer and dumping into the additional chute.

EFFECT: improved conditions of precious minerals settling, also reduced combined sedimentation of heavy valuable minerals and ferromagnetic materials into concentrate at cleaning dumps of ore-dressing and processing enterprises, ferrous metallurgy plants and coal heating electric power stations.

5 cl, 4 dwg

FIELD: mining.

SUBSTANCE: invention is related to mining and may be used for production of gold and other virgin metals from gravel deposits by washing method. Device for extraction of gold consists of elevator block fixed on stands at an angle with perforated part, beneath which there is a distributing block with slots, rigidly connected at an angle by its one end to perforated part, and by its other end - to device stand and cassette unit installed under distributing block, and this unit comprises upper and lower row of cassettes that are hingedly joined to each other with the help of upper cassette row stretching mechanism, plank that is fixed to distributing block and hingedly connected to upper end of upper row of cassettes, mechanism of low cassette row stretching, which is hingedly joined to lower edge of lower cassette row and return block. In perforated part of block there are tubes arranged across with holes along block width, which are inverted to perforated part of block. At the outlet of block tubes create a pipe, which connects to pump.

EFFECT: increased efficiency and effectiveness of gold extraction.

2 dwg

FIELD: mining.

SUBSTANCE: invention refers to concentration of minerals, particularly to facilities for gravitation concentration and can be implemented for extraction of useful component out of various grain materials. The vibratory concentrator consists of a case, of a vibratory exciter, and of a concentrating element in form of symmetrically arranged transverse ribs with incline to the side of vertical walls and an incline to a charging side of the concentrator. Variation in their number, height and angle of incline is acceptable. A corrugated coating of the concentrating element is made wear resistant. The case and the concentrating element are designed to vary frequency and amplitude of vibration. The concentration element is made in form of a plate, the transverse ribs on which are made as a whole with the plate; the plate is equipped with lengthwise vertical directed walls. A receiving box is assembled at the charging end of the vibratory concentrator on the plate; the box is screened from the external side with a transverse vertical wall exceeding the height of the transverse ribs. The concentration element is equipped with a large-meshed removable grate made with vertically directed plates; the grate is installed above the transverse ribs and is secured to the lengthwise walls. Variation in height of the plates of the removable grate and in sizes of its meshes is acceptable.

EFFECT: increased extraction of heavy mineral grains and also increased efficiency of gravitational concentration of minerals and specific output of process.

3 cl, 3 dwg

FIELD: technological processes.

SUBSTANCE: invention concerns mineral dressing and can be applied in ferrous metallurgy at concentration plants processing magnetite ores. Separation method involves sludge feed to a sloping chute, upper part of which is positioned in magnetic flocculator field for preliminary magnetisation of magnetic particles in the sludge flow, especially in upper layers; exposure of magnetic particles to traveling field of magnetic inductor at the chute bottom; exposure of separated mineral particles to transverse vibration by placing vibrating flat vertical plates into the flow in flow direction; flow height separation at the chute end into upper and lower products. Method is performed by separation device including nonmagnetic chute with flat bottom, mounted at variable angle ranging from 3 to 25 degrees, magnetic flocculator system positioned in the upper part and assembled of constant magnets without polarity alternation, inductor of traveling magnetic field, oscillator connected to vibration cartridge in the form of vertical plate set directed along sludge flow, and separator positioned at the chute end at flow outlet. Distance from lower plate edges of vibration cartridge connected to oscillator to the chute bottom is adjustable.

EFFECT: improved product separation efficiency and ore mineral extraction into heavy product, reduced ore mineral content in light product, enhanced efficiency of the whole technological chain by application of the invention in preliminary concentration.

20 cl, 1 dwg

Vibro concentrator // 2340401

FIELD: mechanics, mining.

SUBSTANCE: invention can be sued for extracting useful component from various drain-like materials. The proposed vibro concentrator concentration element with symmetric crosswise ribs is separated into isolated sectors by separating crosswise ribs arranged in symmetry to the aforesaid crosswise ribs but with an inclination arranged in mirror-like position. The symmetric crosswise ribs arranged inside every said sector are tightly connected both between themselves and with the separating crosswise ribs by means of their inner end face edges with a gap between the said edges and lengthwise walls. There are tail removal holes arranged in every sector nearby the inner and outer edges of the aforesaid separating ribs and in symmetry with the lengthwise axial line of the concentration element, the said holes being screened by the side inclined walls with the height equal to that of crosswise ribs. The inner end faces of the separating crosswise ribs and outer end faces of symmetric crosswise ribs feature a gap between them and the side inclined walls that screen the tail removal holes. The receiving box has an outlet arranged in its central part to feed the starting material into the first concentration element sector, if seen on the feed side. The starting material feed channels are arranged between the said tail removal holes screened by vertical walls with the height exceeding that of the crosswise ribs. The vibro concentrator end, opposite the feed one, is furnished with a slit-like hole to remove the tails coming out through the edges of separating crosswise ribs, the most distance from the feed side, the aforesaid slit-like hole being screened, on its outside, by a crosswise vertical wall with the height exceeding that of the said crosswise ribs. The concentrate receiving devices are arranged at outer ends of the last separating ribs, screened by the side inclined walls with the height exceeding that of the crosswise ribs and having an adjustable gap at their lower part.

EFFECT: higher efficiency of gravity concentration.

2 cl, 2 dwg

FIELD: mining engineering.

SUBSTANCE: invention relates to mineral dressing, namely, gravity dressing equipment. It can be used for extracting a valuable mineral from various granular materials. According to the invention, the vibrator concentrator has a concentration part with symmetrised transverse ribs divided into separate sectors by means of separating transverse ribs similar to the symmetrised transverse ribs, but with an inclination in a reflection similar position. In addition, the external butt ends of the separating transverse ribs are tightly connected with longitudinal walls by passages manufactured between their internal butt ends from sector to sector along the center line of the concentration part. A similar passage is also manufactured from the inlet box screened by the separating transverse ribs from the working side of the first adjacent sector. The transverse ribs located inside each sector are also tightly connected together with the separating transverse ribs by means of their internal butt ends and have a gap between their internal butt ends and longitudinal walls. Directly behind each of the separating transverse ribs on the side reverse to the one of charging, the plate is provided with slots screened by the ribs along their opposite longitudinal edge that are similar to the separating transverse ribs and by inclined walls as high as the transverse ribs on the internal butt ends. There is a slot made in the plate near the end reverse to the one of charging of the vibrator concentrator. The slot screened from the external side by a transverse vertical wall higher than the transverse ribs is for withdrawal of tails issuing over the rims of the separating transverse ribs the last from the charging side. The external ends of the last separating ribs of the vibrator concentrator are equipped with heads receptacles in a symmetric position to the longitudinal center line of the concentrating part and screened from the working side by the lateral inclined walls higher than the transverse ribs and equipped by an adjustable gap in the lower part near the plate surface.

EFFECT: more efficient gravity dressing, process specific capacity as well as improved conditions of separating mineral mixtures and continuous vibrodynamic withdrawal of high-density fractions and light fractions of a wide grain size range.

3 dwg

FIELD: mining industry.

SUBSTANCE: apparatus comprises sloping screen, water sprayer housed above the screen, sluice box with templates, and concentrate collector. The sluice box is made of at least one section, which receives a guide inclined at an acute angle to horizon and template mounted at a distance from the guide and inclined to it at an obtuse or right angle, and additional guide mounted at a distance from the bottom edge of the template and inclined to it at an obtuse angle. The additional guide is connected with an additional template and is inclined to it at an obtuse or right angle to define a step-wise cascade. The bottom section of the sloping sluice box is in communication with at least two concentrate collectors mounted one by one. The washing apparatus is made for permitting repeatable filling the concentrate collectors.

EFFECT: enhanced efficiency of the apparatus.

8 cl, 1 dwg

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