Aerial hoisting device

FIELD: methods of surface mining, particularly to transport rock from open-cast mine.

SUBSTANCE: hoisting device comprises drive, haulage rope and load container with spherical balloon. The balloon is enclosed in teardrop-shaped shell. The head shell part is directed towards upper horizon, bottom part thereof is opened and provided with stiffening ring and stringers.

EFFECT: reduced power input and provision of favorable drive operation conditions, reduced haulage rope cross-section and, as a result, reduced hoisting device size as a whole.

2 dwg

 

The invention relates to the mining industry and can be used for open development of mineral deposits for transportation of rocks from the quarry.

Know the transport device of the rock mass that contains a winch with rope, stretched between the upper and lower horizons career, and fixed him with a cargo capacity of a balloon. The movement of loaded containers is the lifting force of the balloon, adjustable weight of the cargo. After unloading of cargo capacity with the balloon return for the next part of the rock mass. (See A.S. No. 1777695, IPC 5 E 21 41/26 with a priority of April 18, 1990).

A disadvantage of the known device are large unit costs on the rise of the rock mass.

Also known balloon-cableway, described in the journal of Industrial transport, No. 10, 1990, p.17-18. This lift is selected as a prototype. It contains a winch located on the upper horizon, with zapasovany on the winch drum traction winch, the bypass unit and the spherical balloon attached to it the cargo capacity. The operation of this device is as follows: on the lower horizon of the produce load capacity portion of the rock mass exceeding the magnitude of the lifting force of the balloon on the weight of the loaded container and its pen is operating from the bottom up by joint action of the cable winch and lifting power of the balloon, adjustable weight of the loaded container.

The disadvantage of the prototype is to increase the load on the rope after unloading of cargo capacity, as the component of the force acting on the rope increases after discharge capacity by the amount of the weight of the cargo.

The objective of the invention is to reduce the forces acting on the rope after unloading containers from the rock mass.

The problem is solved in that in the proposed balloon-cable lift, including the drive, traction rope, cargo tank with a spherical balloon, the balloon is placed in a teardrop-shaped casing, while the warhead casing directed along the balloon loaded with a capacitance, and the tail cover is not closed and is provided with a frame and stringers.

Figure 1 shows the balloon cableway, figure 2 - a balloon in the casing.

Balloon-cableway includes drive 1 and 2, the traction rope 3, the cargo tank 4 with the balloon 5, the loading station 6 and station discharge 7.

Figure 2 on an enlarged scale shows a section a-a of figure 1, showing the balloon 5 with the casing 8, the head part of the casing 9 and a tail part 10. The casing 8 is made of dense fabric, while the tail portion 10 of the casing 8 to maintain the form has a frame 11 and the stringers 12. Between the balloon and cover a clearance for the free passage of air into the cavity g is lowney of the shroud and back.

When moving the tank 4 with the balloon 5 in the quarry air flow rushes into the socket of the tail portion of the casing 8, filling the entire volume of the casing, including the volume of the head part 9, through the gap between the balloon and the casing. The thread creates excess pressure in the casing, thereby automatically weighting structures in General and this ensures the reduction of the load on the rope 3 and the actuator 2.

When lifting cargo tank with a balloon on the top horizon career under the influence of the velocity head the head part 9 of the casing is compressed, forcing the air to the outside, thereby facilitating the design.

Thus, the invention gives a positive effect, namely, that automatically advantageously adjusts the load on the rope, and this allows to reduce the diameter of the conductor, thus reducing the dimensions of the winch drum drive and use less energy-intensive electric.

Balloon-cableway, including the drive, the traction rope and cargo tank with a spherical balloon, wherein the balloon is placed in a teardrop-shaped casing, while the warhead casing is directed towards the top of the horizon, and the tail part of the casing open and provided with a frame and stringers.



 

Same patents:

FIELD: mining art, applicable for mining by open method in rocky and semirocky rocks at placing of high benches on planned contour.

SUBSTANCE: the method consists in collaring of inclined holes from the upper bench to be height of a doubled bench, for production of a cut-off slot at formation of the upper inclined part of the bench and contour vertical holes from the intermediate bench to the same depth for formation of the lower vertical part of the bench, loading and blasting. The novelty in the method is in the fact that the drilling of holes of the contour row from the intermediate bench is performed in three stages: initially in the first stage drilled is the part, of inclined holes from the initial to the final point of the section of sloping with one direction of inclination, in the second stage drilled are the inclined holes of the contour row having the same inclination and the same distance between the holes as in the first stage, but in the contrary direction, in the third stage between the mentioned inclined contour holes drilled are vertical contour holes, the inclined holes of the contour row are loaded by a permanent charge from the face to the mouth of the holes, and in the vertical contour holes positioned between the inclined contour holes, the amount of the charge is changed successively from the face to the mouth, corresponding to the minimum distance between the inclined and vertical contour holes at the bottom of the lower bench is the minimum charge in the vertical contour hole, which in proportion with removal from the bottom of the lower bench successively increases, reaching its maximum value at the bottom of the intermediate bench, at the maximum distance between the inclined and vertical contour holes at the bottom of the lower bench the value of the charge in the vertical contour hole from the face to the mouth is changed in the reverse order.

EFFECT: enhanced efficiency of sloping.

7 dwg, 1 tbl

FIELD: mining industry, particularly opened cast mining.

SUBSTANCE: method involves dividing and successively providing shifting of overlaying hill-shaped rock layers outside the cast by drilling well rings in shifting plane from drilling rooms, wherein the wells extend at an angle enough to initiate layer shifting during sliding surface preparation in rest prism area; placing charges into the wells and blasting thereof in rest prism area; supplying clay mix by its own gravity before sliding surface preparation in upper pressure prism part; blasting well rings in pressure prism area; opening the mine; excavating mineral and overburden rock; developing the cast up to design depth with cast wall building and creating dump of crashed overburden rock at cast contour.

EFFECT: increased efficiency of mineral excavation and reduced overburden ratio.

1 ex, 6 dwg

FIELD: mining industry, particularly to built non-working pit wall in permafrost ground.

SUBSTANCE: method involves loosening rock, constructing trap trench along haulage berm under the berm and forming protective rock bank. Trap trench is of triangular shape and one side thereof arranged opposite to main slope of non-working pit wall has inclination angle of not less than 36° and not more than 40°. Horizontal adjustable rebound area panel is left in area extending from lower ledge edge to trap trench contour. Rock loosening within area defined by excavation contours of working ledge and trap trench is performed by simultaneous blasting out blast-holes and trench-forming holes of the first and the second rows. Holes of the first and the second rows are drilled in working ledge and have subdrilling depth equal to trap trench depth and to one-half thereof correspondingly. Distance between the rows is determined from the given relation.

EFFECT: reduced volume of works for trap trench forming.

1 ex, 4 tbl, 5 dwg

FIELD: mining industry, particularly for open-cast mining of steeply inclined, even vertical, laterally bounded ore body, for instance diamondiferous kimberlite pipe under flooded conditions.

SUBSTANCE: method involves forming hydraulic-mining dump; opening quarry field by pit excavation; filling the pit with water; installing floating pump dredger in plant with cutter; performing rock excavation at quarry field; transporting the obtained rock to ground surface through pulp conveying line and conveying dead rock to hydraulic-mining pump. The quarry field is previously zoned into horizontal layers (horizons) and quarry field development is performed by cutting horizontal layers in top-bottom direction so that water level is lowered as layers are excavated and water surface is maintained at current production horizon level.

EFFECT: reduced power and cost inputs for field dewatering.

3 cl, 2 dwg

FIELD: mining industry, particularly crystal-saving diamond mining when developing permafrost kimberlites under difficult hydrogeological conditions of permafrost zones.

SUBSTANCE: method involves loosening rock, converting rock into pulp and conveying pulp through pulp line by dredger. Before subpermafrost zone opening hole having large diameter is driven from pit bottom for the full depth of field to be developed and inclined borehole is built. The borehole is connected to the hole in point located at said depth and then high-pressure subpermafrost brine is pumped into the pit. Airlift dredger is arranged on water body surface, ripper-dozer provided with all-purpose boring bit is lowered on pit bottom. Loosening of kimberlites weakened by brine is performed by ripper-dozer along helical cuts. Fine ore cuttings are conveyed by means of airlift through pulp line to ore mill. Coarse ore cuttings are moved to ground surface to ore storage through hole, caisson drift and inclined borehole provided with skip hoist. Kimberlite pipe development below pit bottom is performed at right angles of faces depreciation without performing overburden operations.

EFFECT: increased gem diamond yield and resource saving due to deep horizons with opened worked-out space development without overburden operations and improved ecological safety.

4 dwg, 1 ex, 1 tbl

FIELD: mining industry.

SUBSTANCE: method includes extraction of quarry to planned depth in stages with construction f boards with parameters, allowed from stability condition, shutting boards, finishing mineral resource massif. Building and shutting of temporary boards during extraction of steep layers of next level after change of order of extraction of opening and ore zones is started after construction and spacing in center of cut of well-like mine with vertical shelves, with parameters, which are provided for by minimal radiuses of rounded edges enough for movement of rock via spiral chutes to surface to outer dumps, with narrowing space towards bottom at level of opened level of deep portion of deposit with lesser total coefficient of opening of stage and finally board is constructed by steep vertical shelves in deep zone.

EFFECT: higher efficiency.

1 ex, 10 dwg

FIELD: mining industry.

SUBSTANCE: method includes opening deposit at distance 150 meters from river and forming of natural filtering wall between river and trench, pumping of water from trench into river, extraction of mineral resource, revegetation of dumps, filling of trench with water, accomplishment of formed water body. Mineral resource is extracted from two serially opened trenches - auxiliary, revegetated as water body, and main, positioned at opposite side of river, and soil from opening of which is used for revegetation of auxiliary trench, while in main trench along whole board on the side of river right beyond mining operations inner dump is formed with width not less than 250 meters and with height at same level with earth surface, water from trenches is fed into river, and then into water body through intermediate collectors, while after forming of water body currents of soil waters between trenches and river are made balanced, balance level is estimated on basis of water levels in auxiliary trench and river.

EFFECT: higher efficiency.

1 dwg, 1 ex

FIELD: mining industry, applicable for slanting of high benches at development of magmatic deposits of mineral resources by open pit.

SUBSTANCE: the method includes drilling of contour holes for formation of a screening peephole, buffer and breaking holes to a depth corresponding to the height of one working subbench with a redrill, the middle row of breaking holes is made with an incomplete drill, charging of the openings and their blasting, dispatch of the rock, after blasting first of outline openings, for formation of the screening peephole, and then of breaking holes and mucking of the rock, similar operations are performed on the underlying subbench of the lower high bench, at the development of the lower high bench, the development of the upper and lower benches is conducted by doubling of the working subbenches, at the development of the lower subbench of the upper high bench the outline openings are drilled to the whole height of the doubled bench, the buffer openings are drilled at a distance of 12 to 13 diameters of the charge from the outline openings and to a depth at least corresponding to the height of one working subbench with a redrill equal to 6-8 diameters of the charge, the first and last rows of the breaking holes are drilled with a redrill, equal to 4-5 diameters of the charge, and the incomplete drill of the middle row of the breaking holes makes up 7-8 diameters of the charge, after blasting of the buffer and breaking opening and mucking of the rock a crest is formed, from whose surface on the side of the slope outline and buffer openings are drilled, the first ones - to the height of doubled subbenches, and the second ones - to the height at least of one lower working subbench, then the breaking openings to the same height as in the above - and underlying subbenches and for production of a natural protective bank on the upper section of the lower high bench in the section of the berm the formed ridge is liquidated by drilling, charging and blasting of the openings of small diameter and depth.

EFFECT: enhanced stability of high benches on the outline of the open pit.

2 cl, 3 dwg, 1 ex

FIELD: mining industry.

SUBSTANCE: method includes serial extraction of drifts with placement of opened rocks of drifts in extracted space of previous drifts, continuous combined processes of softening, extraction and movement of rock to dump. Drifts are positioned along cut trench, extraction is performed by adjacent horizontal shavings of face area, rock of each drift is moved by throwing directly to extracted space and compacted in range by realization of kinetic energy of rock.

EFFECT: higher efficiency.

2 dwg

FIELD: mining industry.

SUBSTANCE: method includes opening deposit of mineral resource along its length, extraction of opened rocks in shelves, forming on one of the portions of deposit of forward extracted space reaching planned bottom, moving rocks to external dumps and into extracted space, processing and transporting of mineral resource. Deposit extraction is performed in two directions - perpendicularly to length of deposit with deepening and along length to quarry bottom, while volume of extraction of mineral resource along length is increased and volume of extraction of resources perpendicularly to length is proportionally decreased.

EFFECT: higher efficiency.

2 cl, 3 dwg

FIELD: transportation power systems.

SUBSTANCE: proposed system includes transport facilities, captive balloon, captive cable used for holding and guiding the transport facilities and wind-power electric stations mounted on captive balloon and used for motion of transport facilities. Captive cable is provided with two (or more) current conductors fastened with insulating layers made from high-strength material. Each current conductor is located in vertical longitudinal plane and is fastened to ends of captive cable through insulating layers and is connected with respective wind-power electric station. Outer surfaces of current conductors located in vertical longitudinal planes are provided with current-conducting wear-resistance coats.

EFFECT: enhanced efficiency and reliability of system in upper layers of troposphere.

2 cl, 2 dwg

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FIELD: transportation power systems.

SUBSTANCE: proposed system includes transport facilities, captive balloon, captive cable used for holding and guiding the transport facilities and wind-power electric stations mounted on captive balloon and used for motion of transport facilities. Captive cable is provided with two (or more) current conductors fastened with insulating layers made from high-strength material. Each current conductor is located in vertical longitudinal plane and is fastened to ends of captive cable through insulating layers and is connected with respective wind-power electric station. Outer surfaces of current conductors located in vertical longitudinal planes are provided with current-conducting wear-resistance coats.

EFFECT: enhanced efficiency and reliability of system in upper layers of troposphere.

2 cl, 2 dwg

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