Development method of shallow permafrost terrace placers above flood-plain in conditions of repeated dragging

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

 

The invention relates to the mining industry, in particular to the development of placer mineral deposits.

The known method development dredge uvalnaya placer adjacent longitudinal passages at the opening of her pit on the ridge [1]. Also known development method separately found a small terrace placers along the way involved in the operation of the dredge, developing floodplain scattering [2]. Sands terrace placers in this method, after Stripping and placement of peat in external dumps and natural defrost using earth moving equipment moving in the floodplain to the bottom dredge.

A common shortcoming of these methods are large losses of useful component in the exhaust Sands, which is permissible for the enrichment of clay poorly of desintegrating Zelikovich Sands. They do not allow to present the development in the whole field consisting of several floodplain terrace placers, which are also involved in operation in the last time.

The objective of the invention is to develop an effective method of field development, consisting of several floodplain terrace permafrost placers with clayey Sands, with a General slope towards the river floodplain and drop them on the stretch in terms of re-dredging.

The problem is solved for with the em technical result which is the development of the field most cheap dredging method, allowing him to work out the speed transverse to the stretch with minimal Stripping of peat, defrosting frozen Sands natural way, and protect them from seasonal freezing by flooding in terms of re-dredging.

This technical result is achieved in that in the method of development of shallow permafrost floodplain terrace placers in terms of re-dredging, including the opening of the pit with the placement of the peat overburden in external dumps, defrosting frozen Sands natural way, moving Sands excavation technique, the development of sand dredge adjacent longitudinal passages, according to the invention the development of implementing a stepped longitudinal stripes, separated by a strip removed Zelikovich Sands at penetration ahead of the longitudinal trenches, with longitudinal stripes work two single interconnecting passages Draghi ring, of which the priority is the progress of the rebellion placers, adjacent to the strip removed Zelikovich sand to increase its the width for the internal storage of peat overburden by dredging Zelikovich Sands oblique (unbalanced) slaughter with education related you botanova space, not covered by piles of waste Sands.

Of peat excavated during drilling ahead of the longitudinal trenches, and peat overburden the following longitudinal stripes that are prepared to dredging, in advance of the longitudinal trench after excavation Zelikovich Sands occiput pioneer longitudinal dam, and in the developed space primary stroke Draghi to raise the water level in the dredging cut occiput cross-dam-jumpers on all its width.

From Zelikovich Sands, taken when drilling ahead of the longitudinal trenches, thawed Sands after Stripping of peat occiput longitudinal dam on the square of the second reverse Draghi related to the priority area of its stroke and, consequently, the cross-dam-jumper on the area of primary stroke Draghi on all its width, while dam-jumper on the back of the course Draghi occiput of Zelikovich sand excavated from areas adjacent to the base of the dam.

Peat overburden with the rest of the square next longitudinal stripes that are prepared to dredging, post excavation equipment on the space previously filled longitudinal dams and goaf, not covered with piles of waste Sands, with the subsequent construction of the landfilling of peat inner longitudinal transport of the dam.

To raise the level in the s dredging in the context of and protection from seasonal freezing Zelikovich Sands, thawed in a natural way after Stripping of peat excavation technique, the pits formed pioneer and transport of the longitudinal dams, longitudinal dam and cross-dams-dams consistently flood.

For dredging and protection thawed Zelikovich Sands from seasonal freezing water is pumped from the river, and then by pumping and by gravity from one pit to another.

Before entering the dredge in the next pit cross the dam-jumper pre-plan after the destruction of her body to accelerate the seasonal thawing of permafrost in a natural way, and then its volume dragonaut together with telemovie Sands, occurring at the base of the dam, and after entering the dredge into the pit when a priority during Draghi rebellion placer dam-jumper re-invented by dumping of peat under Stucker Draghi on athelny blade to blockages of the pebbly blade for raising the water level in the prepared for dredging the pit.

During the reverse course Draghi fall placer longitudinal dam plan after the destruction of her body to accelerate the seasonal thawing of permafrost in a natural way, and then its volume dragonaut together with telemovie Sands, occurring at the base of the dam.

During the transition Draghi to the next OTP is Batavia longitudinal strip, peat, filled in the inner longitudinal transport dam, on the transition area is removed by excavation equipment with subsequent alloy Draghi in prepared trench and re-construction of a dam of earth-moving equipment on the transition area by dumping of peat under Stucker Draghi to raise the water level in the prepared for dredging the pit.

Comparative analysis shows that the proposed method is the development of shallow permafrost floodplain terrace placers in terms of re-dredging is different from the prototype, i.e., meets the requirements of the invention according to the criterion "novelty".

The proposed method for the development of shallow permafrost floodplain terrace placers in terms of re-dredging meets the criterion of "inventive step"as the totality of its essential features allows you to create conditions for a more complete extraction of useful components from the Sands and thereby improve the effectiveness of dredging.

The proposed method is illustrated by drawings, where figure 1 shows the development of a dredge top step of the rebellion placer thawed and flooded Zelikovich Sands first longitudinal strip of the first above the floodplain terrace placers, figure 2 - the end of the development dredge the second reverse what about the fall placer progress thawed and flooded Zelikovich Sands first longitudinal stripes, the first above the floodplain terrace placers; figure 3 - start development of the dredge thawed and flooded Zelikovich Sands another longitudinal stripes of the first or subsequent floodplain terrace placers after passing through the longitudinal transport dam.

In the drawings shown:

A and B respectively are working and ready for testing longitudinal stripes;

In - band excavated sand in the process of preparation of stock;

G - band excavated sand after first stroke Draghi.

1 and 2 are respectively longitudinal and transverse external transport dam, filled with the path of balance reserves of peat overburden; 3 - Draga developing ready for extraction Sands; 4 - anticipatory longitudinal trench, covered up the raft between developed and prepared for dredging strips; 5 - blade of turf Stripping, filled the excavation of the trench; 6 - blade sand, filled the excavation of the trench; 7 - longitudinal internal transport dam, filled square excavated sand, formed by the sinking of the trench 4 and the development of dredge 3 Zelikovich Sands oblique (unbalanced) face when adjacent its course; 8 - pioneer longitudinal dam, filled in the trench 4 from the peat of the blade 5 and peat overburden adjacent square longitudinal stripes that are prepared to dredging; 9 - longitudinal dam filled with clay from the sand, delivered from the blade 6 and 10 are cross-dam-jumpers, filled of sand delivered from the blade 6 on the thawed whole Sands and restored in the mined-out space of the peat overburden; 11 - area overburden peat used for dumping pioneer longitudinal dams 8 and restoration of transverse dams-jumper 10; 12 - area, prepared for the natural thawing permafrost Zelikovich Sands after Stripping of peat; 13 - area naturally thawed Zelikovich Sands after Stripping of peat; 14 - square thawed Zelikovich Sands, protected from seasonal freezing after flooding; 15 - primary longitudinal stroke dredge working in the band; 16 - second opposite longitudinal interconnecting the course of the dredge working in the band; 17 - transverse stroke Draghi during the transition Draghi on the square next working band. The method is as follows.

Diamond Deposit, consisting of four floodplain terrace shallow permafrost placers with loamy Sands adjacent to each other, is developed dredging method. The average slope of the placers along the strike of 0.003, transverse to the stretch in the side of the river floodplain 0,006 average power of peat 2.3 m, Sands of 2.4 meters

Before operating mines in its lower part for circuit balance reserves tsipau the descendants of the peat overburden 1 longitudinal and transverse 2 external transport dam. Last as mining floodplain terrace placers increasing. The development of the field dredge 3 start with the first above the floodplain terrace placers by opening its trench at the intersection of these dams.

The field is developed stepwise longitudinal stripes, separated by a strip removed Zelikovich Sands, with two single interconnecting passages Draghi 15 and 16, of which the priority is the passage 15 to the uprising placers (see figure 1). Within the first longitudinal strip after Stripping of peat and placing them in dams 1 and 2 there is a natural defrost uncovered the frozen Sands. Before entering the dredge in operation carry out work on the protection of melted sand from seasonal freezing by flooding. For this abroad first longitudinal strip of earth-moving equipment are up to the raft ahead of longitudinal trench 4, in which after excavation of sand occiput peat overburden removed during the excavation and placed in the blade 5. In trench 4, in addition, place the peat overburden removed with a connecting area 11 the following are prepared to dredging longitudinal stripes in dumping pioneer longitudinal dam 8.

To increase bandwidth excavated sand the excavation of the trench 4 is realized by dredging Zelikovich Sands oblique (asymmetric the time of the slaughter at the priority during 15 Draghi 3 with the formation adjacent square goaf, not covered by piles of waste Sands. The obtained higher bandwidth excavated Sands, part-time pioneer longitudinal dam 8, build internal longitudinal transport dam of 7 other volumes of peat overburden on the square next 12 longitudinal stripes that are prepared to dredging.

During development of the dredge 3 ready to mining stocks Zelikovich Sands at square one longitudinal strip two single longitudinal passages 15 and 16 are Stripping of peat on the whole area of the next longitudinal stripes, which occurs after natural thawing permafrost Zelikovich Sands with their subsequent protection from seasonal freezing by flooding during the transition Draghi to the next vertical line.

To raise the water level in the drag section and flooding thawed Sands, in the presence of transport dams 1, 2 and 7, as well as pioneering longitudinal dam 8, earthmoving equipment on the thawed whole Sands in the square opposite the adjacent turn 16 at the border of primary stroke 15 occiput longitudinal dam of 9 and cross-dam-jumper 10 of clayey Sands of the blade 6 on a priority during Draghi. During reverse Draghi these dam-jumper occiput of Zelikovich sand excavated from areas adjacent to the base of the dam. In designed the nome space primary stroke 15 Draghi 3 cross-dam-jumper 10 restore from peat overburden area 11. The dam is low, also dam-jumper 10 is limited in number due to the small slope of the placers along strike.

To melt placers these dam-jumper 10 is only required to raise the water level in the working pit, which are constructed during the development of the diamond fields in the rebellion behind Draghi 3, fall ahead of Draghi 3.

Water for flooding thawed sand in order to protect them from seasonal freezing and Draghi is pumped from the river, and then by pumping and by gravity from one pit to another.

Before the passage of the dredge 3 in the next pit top speed of 15 cross-dam-dam, filled from the Sands, is scheduled after the destruction of her body to accelerate the seasonal thawing of permafrost in a natural way, and then its volume dragonauts together with telemovie Sands, occurring at the base of the dam.

With the passage of the dredge in the next pit to raise the level of water removed cross-dam-jumper restored in the developed space by dumping earth-moving equipment under Stucker dredge excavated peat on athelny blade until blockages pebbly blade.

At flybacks 16 Sands, filled in the longitudinal dam 9, are removed by the dredge 3, after her plan, together with telemovie Sands, lying in the basis of the AI dam. Before planning the dam body to destroy accelerated seasonal thawing of permafrost in a natural way.

Through athelny dump, containing fine gravel, in which the existing pores filled by silt and clay particles, water filtration minimum. In the case of a small leak of water from the pit it can be filled by pumping.

With the proposed method of developing the next strips are square 13 in a timely manner thawed Zelikovich Sands and protected 14 of seasonal freezing by flooding them with minimal volumes of mining and preparation work.

If the width of these bands be reduced to the width of one single stroke Draghi, while reducing the cost of Stripping of peat do not have the time to thaw and to protect the whole Sands at the site adjacent to the transition Draghi to the next strip, so how does the meeting dredging the bottom with the front gornoobogatititelnyh works. With increasing bandwidth, developed more than two single moves Draghi, increase unnecessary costs for sinking the broader advanced trench 4 when placing the longitudinal transport dam 7 and Stripping of peat with increased distance transportation of earth-moving equipment, which is used bulldozers.

Before the passage of the dredge on sleduushuu the working strip, peat, filled in the inner longitudinal transport dam 7, are removed by excavation equipment in the transition area at low water level in hours worked and prepared for testing the pit and stored near to a temporary dump. Pass Draghi provide the alloy with the increased water level in these pits. With the passage of the dredge on the transition area specified dam again slept earthmoving equipment under Stucker Draghi of excavated peat.

Creating a stripe removed Zelikovich Sands, including square notch with sinking Sands ahead of the longitudinal trenches 4 and the adjacent area goaf, not buried waste dumps sand at the dredging oblique (asymmetrical face), allows the storage of peat overburden in the internal dumps with subsequent raising of the longitudinal transport of the dam 7. No blockages of the waste dumps sand peat overburden in the proposed method of development creates the condition for re-dredging, which can be divided into associated and subsequent. The latter are used in practice after the end of the development Zelikovich Sands field in reverse order, passing if necessary to increase the time of operation of the dredge operated lanes for training Zelikovich PE the Cove next strip, and when retrieving the current economic effect.

With significant presence of settled sludge in the developed space dumps waste Sands place collectively with the General contour of two adjacent single moves through the notches Zelikovich Sands oblique (unbalanced) face not only in the course of 15, and 16. In this case, it is possible to avoid dredging of silt that is deposited between the waste dumps sand at repeated dredging, if the development of collectively arranged piles of waste sand to make one during Draghi direct (symmetric) face.

The dumping of the longitudinal dam of 9 appropriate in order to avoid deposition of silt, formed during the development of clayey Sands, on the area of reverse Draghi 16. These silts razboiul take out whole Sands and reduce the extraction of useful component in enrichment. When it is dumping decreases the need to use water for flooding.

Sources of information

1. Shorokhov S.M. in Technology and comprehensive mechanization of the development of placer deposits. M.: Nedra, 1973, s-411.

2. Dorokhov NM, Ershov, VA Experience involving alluvial terrace deposits in the associated development of a dredging method. Mining magazine. 2006, No. 10, p.45-47.

1. The way to develop shallow permafrost floodplain terrace placers in terms of re al the responses, including the opening of the pit with the placement of the peat overburden in external dumps, defrosting frozen Sands natural way, moving Sands excavation technique, the development of sand dredge adjacent longitudinal passages, characterized in that the development carried out stepwise longitudinal stripes, separated by a strip removed Zelikovich Sands at penetration ahead of the longitudinal trenches, with longitudinal stripes run two moves Draghi ring, of which the priority is the progress of the rebellion placers, adjacent to the strip removed Zelikovich sand to increase its width to the internal storage of peat overburden by dredging Zelikovich Sands oblique (unbalanced) slaughter with the formation adjacent goaf not covered by piles of waste Sands.

2. The method according to claim 1, characterized in that the peat removed when drilling ahead of the longitudinal trenches, and peat overburden the following longitudinal stripes that are prepared to dredging, in advance of the longitudinal trench after excavation Zelikovich Sands occiput pioneer longitudinal dam, and in the developed space primary stroke Draghi to raise the water level in the dredging cut occiput cross-dam-jumpers on all its width.

3. The method according to claim 1, distinguished by the different topics what Zelikovich Sands, taken when drilling ahead of the longitudinal trenches, thawed Sands after Stripping of peat occiput longitudinal dam on the square of the second reverse Draghi related to the priority area of its stroke and consistently cross-dam-jumper on the area of primary stroke Draghi on all its width, while dam-jumper on the back of the course Draghi occiput of Zelikovich sand excavated from areas adjacent to the base of the dam.

4. The method according to claim 1 or 2, characterized in that the peat overburden with the rest of the square next longitudinal stripes that are prepared to dredging, post excavation equipment on the space previously filled longitudinal dams and goaf, not covered with piles of waste Sands, with the subsequent construction of the landfilling of peat inner longitudinal transport of the dam.

5. The method according to any of claim 2, 3, characterized in that for raising the water level in the drag section, and protection from seasonal freezing Zelikovich Sands, thawed in a natural way after Stripping of peat excavation technique, the pits formed pioneer and transport of the longitudinal dams, longitudinal dam and cross-dams-dams consistently flood.

6. The method according to claim 1, characterized in that for others the responses and protection thawed Zelikovich Sands from seasonal freezing water is pumped from the river, and then by pumping and by gravity from one pit to another.

7. The method according to claim 1 or 3, characterized in that before entering the dredge in the next pit cross the dam-jumper expect after the destruction of her body to accelerate the seasonal thawing of permafrost in a natural way, and then its volume dragonaut together with telemovie Sands, occurring at the base of the dam, and after entering the dredge into the pit when a priority during Draghi rebellion placer dam-jumper re-invented by dumping of peat under Stucker Draghi on athelny blade to blockages of the pebbly blade for raising the water level in the prepared for dredging the pit.

8. The method according to claim 1 or 3, characterized in that during the reverse course Draghi fall placer longitudinal dam plan after the destruction of her body to accelerate the seasonal thawing of permafrost in a natural way, and then its volume dragonaut together with telemovie Sands, occurring at the base of the dam.

9. The method according to claim 1, characterized in that during the transition Draghi on the following working longitudinal strip, peat, filled in the inner longitudinal transport dam, on the transition area is removed by excavation equipment with subsequent alloy Draghi in prepared trench and re-construction of the dam excavation technique in which castke transition by dumping of peat under Stucker Draghi to raise the water level in the prepared for dredging the trench.



 

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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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