Stripping aggregate

FIELD: mining.

SUBSTANCE: invention refers to mining and can be implemented at open development of mineral deposits by non-transport system in complicated mining and geological conditions. The stripping aggregate consists of face and dumping non-rotary carrier platforms with masts interconnected with two running cables, and of a double-sided bucket with a bottom of V-shape coupled with each mast by means of a lift-and-drag cable enveloping a corresponding block installed between the running cables. The block of the face non-rotary platform is rigidly tied with the first running cable and is connected to the second running cable; it travels along this cable relative to the block of the non-rotary dumping carrier platform together with the second running cable. The block of the dumping non-rotary platform is rigidly tied with the second running cable and is connected to the first running cable; it travels along this cable relative to the block of the non-rotary face carrier platform together with the first running cable.

EFFECT: raised efficiency of stripping aggregate and reduced wear of cables.

10 dwg

 

The invention relates to the mining industry and can be used for open development of mineral deposits on bestransportnye system in difficult mining and geological conditions.

The problem of using Stripping units is as follows.

The efficiency of such units depends on the suspension system of the bucket. There are two suspension systems.

The first provides for a rigid connection of the bucket with the supporting or traction-bearing rope [USSR author's certificate No. 840246, CL E02F 3/48 published 23.06.81. Bulletin No. 23; Rzhevskiy CENTURIES "Open pit mining". Part 1. The production processes. M.: Nedra, 1985, 509 S., str-371, RIS,b; Skurikhin YG, Gordeev J.K., Dorofeev, VA "the research Results of the Stripping unit. Journal of Coal, 1996, No. 6, p.34-36; the patent of the Russian Federation on copyright certificate №2255181, CL E02F 3/54, published 27.06.2005; USSR author's certificate No. 132568, CL E02F 3/46, E02F 3/54, published 01.01.1960 in Bulletin of inventions No. 19]. In this case, the bucket is lowered to the place of use associated with the supporting or traction-bearing rope. The result is reduced performance of the unit and increases the wear of the rope.

Performance decreases because of the increased cycle times by performing additional auxiliary works, use the buckets unilateral action, and double-acting with the moving elements and other

Cause increased wear of the rope is its friction on the rock with increasing distance from the Stripping unit to the upper edge of the ledge at the lower of mining operations or the growth of the width of the Stripping zagadki. The decrease in mining causes the increase of the width of the platform security and the increase of the distance between the equipment and the upper edge of the ledge. This reduces the distance between the rope and the upper edge of the ledge until liquidation and cutting rope in the breed. When this rope is intensively worn. In addition, in the area of the upper edge of the ledge moldboard Zachodni bucket is moved by the method of drawing on the breed. In

the result of the moving speed of the bucket is reduced several times, increasing the duration of the cycle and decreases the performance of the unit. When developing coal deposits width Stripping Zachodni reaches 80-100 m in the traditional width of 40-60 m, which increases the distance between the Stripping unit and the top of the Stripping edge of the ledge and otsypannoy moldboard zagadki.

A second suspension system bucket is characterized by the regulation of the distance between the bucket and the traction-bearing rope [the patent of the Russian Federation on copyright certificate №2034114, CL E02F 3/54, published 30.04.1995, Bulletin No. 12]. This increases the em performance of the Stripping unit through the use of double-acting bucket and reduces wear on rope friction about the breed.

However, the performance of such aggregates is reduced in the waste of time when performing the elements of movement of the bucket during the operating cycle. Increased wear of the rope occurs due to friction between the lifting and traction rope.

Thus, the problem of using the Stripping unit is to increase its productivity and reduce wear of ropes.

A known machine for excavation, consisting of two chassis platforms, equipped with shafts which are connected by a traction rope to move bilateral bucket [USSR author's certificate No. 840246, CL E02F 3/48 published 23.06.1981, Bulletin No. 23].

Common symptoms are known machines for excavation with the claimed invention are: non-running platform, pulling ropes and double-sided bucket.

The disadvantages of this machine are:

- low productivity due to the large weight of the chassis platforms on which are mounted the shafts of equal length, tilted in the direction opposite from the operating trench, and having a hinge connected buckets with traction rope, which it is impossible to make drawing and unloading breed anywhere on the way of transportation, to make the frill of the slope of the ledge; the drawing of the breed such buckets associated with Ishenim sticking and freezing of the rock mass, this drawing of the breed is accompanied by a low coefficient of filling of the bucket and the increase in the length of the operating cycle;

- increased wear of the traction rope friction for his breed by increasing the width of the site security, with the lowering of mining operations or growth of the width of the Stripping zagadki.

The famous tower excavator consisting of a tail and a head suspension platforms, equipped with towers, connected between a load-bearing rope, bucket, associated with the respective towers traction ropes and trucks moving on the supporting rope. [Rzhevsky CENTURY Open pit mining. Part 1. The production processes. M.: Nedra, 1985, 509 S., str-371, Fig.17. 12, b).

Common features the famous tower excavator with the claimed invention are: non-running platform, carrying the rope and bucket.

The disadvantages of the known tower excavator are:

- low productivity due to the rigid connection of the bucket with a carrying rope and use bucket unilateral actions, as well as bailing bucket in a direction opposite to its movement to the place of unloading on the blade. This increases the formation of dump tiers, Stripping roofs mineral deposits, excavation of the ridges of the rocks between the aisles of a bucket, eliminating deadlocks then, is the breaking of arrays, etc. This excaberate additional volume of rocks formed as a result of his move ahead of the loaded bucket in the so-called "prism drawing and increases the distance of transportation of the rocks in the pile;

- increased wear of the rope is due to its friction breed with increasing distance between the tower excavator and the upper edge of the ledge due to the growth of the width of the platform security with the decrease of mining operations or increase the width of zagadki.

Known Stripping unit, consisting of a downhole rotary driving platform with a boom and a moldboard non-tradable platform to the mast. The boom and mast are connected traction-bearing rope with a block, to which is suspended a bucket associated traction rope with downhole non-tradable platform [Skurikhin YG, Gordeev J.K., Dorofeev, VA "the research Results of the Stripping unit. Journal of Coal, 1996, No. 6, p.34-36].

Common features of known Stripping unit with the claimed invention are: non-downhole running platform, non-moldboard chassis platform with the mast connecting the non-tradable platform trailer carrying a rope and bucket.

The disadvantages of the known Stripping unit are:

- low productivity due to the rigid connection of the bucket with a trailer carrying Kahn is the fact and use bucket unilateral action. This increases the formation of dump tiers, Stripping roofs mineral deposits, excavation of the ridges between the aisles of bucket elimination hangs loosened rocks, ruffles slope benches, cleaning the rocks in the lower edge of the ledge, increase the working time cycle when moving filled with rock bucket method "lug" around the top edge otsypannoy moldboard Zachodni with decreasing mining etc.;

- increased wear of the rope in the rigid connection of the bucket Stripping unit with a carrying rope is due to the friction of the rope on the rock with increasing distance between the Stripping unit and the upper edge of the ledge or moldboard Zachodni in the growth of the width of the Stripping Zachodni or width of platform security in the reduction of mining operations.

The famous tower excavator consisting of native and rear towers, connected by a two carriers and two traction cables, and two buckets with runners associated with the trucks moving across the bearing ropes [the patent of the Russian Federation on copyright certificate №2255181, CL E02F 3/54, published 27.06.2005].

Common features the famous tower excavator with the claimed invention are the rope and bucket.

The disadvantages of the known tower excavator are:

- n is ska performance due to the movement of the bucket through the soil by reducing the speed of its movement; increasing the time of filling of the bucket when cleaning the bottom edge of the ledge, when the vehicle load and the formation of the dump tier;

- increased wear of the rope as a result of its friction breed with increasing distance between the tower excavator and the top of the Stripping edge of the ledge or otsypannoy moldboard Zachodni in the growth of the width of the platform security with the decrease of mining operations or increase the width of the Stripping zagadki.

The famous cable car tower excavator, including downhole and otvalnuyu non-tradable platform with masts connected between a load-bearing rope, and double-sided bucket [USSR author's certificate No. 132568, CL E02F 3/46, E02F 3/54, published 01.01.1960 in Bulletin of inventions No. 19].

Common symptoms are known cable-tower installation with the claimed invention is downhole and moldboard non-tradable platform with masts connected to each other by rope, double-sided bucket associated with the respective poles by ropes.

The disadvantages of the known cable-tower-installation are:

- low productivity due to the use of two-way bucket, consisting of two interconnected chain of buckets, and hard their connection with carrying rope. When unilateral relatively trench stacked rocks to dump the work will be only one of the two buckets. The second bucket will prevent the filling of the first bucket. Rigid connection of each of the buckets with a carrying rope increases the formation of dump tiers, Stripping roofs mineral deposits, cleaning ridges between the aisles of bucket elimination hangs loosened rocks, ruffles slope benches, cleaning the rocks in the lower edge of the ledge, the business cycle by moving filled with rock bucket method "lug" around the top edge otsypannoy moldboard Zachodni with decreasing mining etc.;

- increased wear of the rope in the rigid connection of two-sided bucket with a carrying rope is due to the friction of the rope on the rock with increasing distance between the tower installation and the upper edge of the ledge or otsypannoy the moldboard section due to the growth of the width of the platform security in the reduction of mining operations or the width of the Stripping zagadki.

Adopted as a prototype unit for bestransportnye system development in the Russian Federation patent for the invention №2034114, CL E02F 3/54, published 30.04.1995, as the closest to the technical essence and functions.

Unit for bestransportnye development system consists of downhole and moldboard non-running platforms with poles connected between a traction-bearing rope, and TLD the third bucket with a bottom V-shaped, associated with mast lifting and towing ropes, enveloping the corresponding block, mounted on trailer suspension rope.

Common features of known unit for bestransportnye system development with the claimed invention are:

- downhole and moldboard non-tradable platform with masts connected between a traction-bearing rope;

- bucket with the bottom of the V-shaped associated with mast lifting and towing ropes, enveloping the corresponding block, mounted on trailer suspension rope.

The disadvantages of the known unit for bestransportnye system development are:

- low productivity as a result of performing unnecessary operations during the operating cycle. So, when moving the bucket after unloading from the moldboard of the non-tradable platform to the place of use in a downhole side of the non-tradable platform lifting and pulling ropes on the area between the bucket and the block are parallel and are in a vertical position in which the bucket is lowered to the surface of the breed for use.

To move the bucket in the process of bailing in the side of the moldboard platform trailer carrying ropes on the area between the bucket and the power incline towards moldboard platform and set at an angle, ensuring the filling of the bucket when it is moved. After the zapolneniya bucket breed lifting and pulling the rope back to the original vertical position for interrupting him from the use and transportation of the bucket to the moldboard platform. Tearing the bucket from the place of use, it is installed in the position to move to the moldboard platform for unloading. During the transportation of the loaded bucket hoisting and pulling ropes on the area between the bucket and the block is occupied by parallel vertical position.

During tilting of the lifting and traction rope in position for use and return them after use in the initial transport position of the bucket is stationary and no work makes.

As a result, the duration of the working cycle is increased by the amount of time tilt lifting and traction rope on the area between the bucket and the block to stock and return them to their original vertical position for transportation of the bucket to the place of unloading. So when mining at a depth 70,0 m average duration of the working cycle is 95,0 C. Time tilt lifting and traction rope in position for use and return them in a position for transportation of the bucket to the place of unloading is equal to 18.0 or 19.0% higher duty cycle is wasteful and reduces the performance of the Stripping unit.

- increased wear of the ropes is the result of a friction hoist and traction ropes together in the area between the bucket and the block when their sagging during use.

The reason for weeks the mistakes of the prototype is the lack of technical solutions, aimed at:

- reduction of unproductive time lifting and traction rope on the area between the bucket and a block from the transport position to the bailing bucket, and after bailing and detachment of the bucket from bailing - back position for transportation of the loaded bucket to the place of unloading;

- reduced wear of ropes.

The invention is aimed at solving problems and increasing productivity Stripping unit and reduced wear of ropes.

The technical result of the invention is to increase productivity Stripping unit and reduce wear of the ropes due to changes in the suspension system of the bucket.

The technical result is achieved by Stripping unit, consisting of downhole and moldboard non-running platforms with masts, United traction-bearing rope, and double-sided bucket with a bottom V-shaped, connected to the mast lifting and towing ropes, enveloping the corresponding block, mounted on the traction-bearing rope, equipped according to the claimed invention additional traction-bearing rope connecting the mast hole and moldboard non-running platform, and the blocks downhole and moldboard non-running platforms placed between the traction-bearing ropes and connect the s with them so that they can move relative to each friend together with traction-bearing ropes, the downhole unit non-running platform is rigidly connected with one of the traction-bearing rope, and the moldboard unit of the non-tradable platform with other traction-bearing rope.

The connection of the mast hole and moldboard non-running platforms for more traction-bearing rope provides the ability to move relative to each other blocks lifting and traction rope together with traction-bearing ropes. This allows you to change the distance between the blocks and adjust the angle of the ropes in the process of implementation of the business cycle.

Placing blocks between the traction-bearing ropes creates the attachment of lifting and traction rope to the bucket in a plane coincident with a vertical plane passing through the middle of the width of the bucket and ensure its balance. This is aimed at the achievement of the technical result, which includes the balance of the bucket together with two traction-bearing ropes.

The connection blocks with traction-bearing ropes creates the structural strength of the suspension system of the bucket.

The ability to move relative to each other blocks together with traction-bearing ropes involves changing the distance between the blocks lifting and traction rope during execution of the operating cycle of Stripping unit, to reduce the time for change at the La tilt lifting and traction rope when transferring them from the transport position to the bailing bucket and Vice versa. This reduces the duration of the working cycle of Stripping unit and increases its performance, providing technical result.

Rigid attachment of the block face of the non-tradable platform to one of the traction-bearing rope and rigid attachment of the moldboard unit of the non-tradable platform to another trailer carrying the rope allows you to move blocks, changing the distance between them, providing the position of the bucket is required to perform elements of the working process and reduce cycle time.

In the expanding blocks distance between lifting and traction ropes increases, which reduces wear by reducing friction on each other when they are sagging. This ensures the achievement of the technical result.

The invention is illustrated by drawings (Fig.1-10), which figure 1 shows a Stripping unit; figure 2 presents the scheme of connection blocks downhole and moldboard non-tradable platform with traction-bearing ropes in the plan; figure 3 is a wiring diagram of the moldboard unit of the non-tradable platform with traction-bearing ropes in transverse section; figure 4 is a wiring diagram of the downhole unit non-tradable platform with traction-bearing ropes in transverse section; figure 5 - diagram of the position of blocks of the non-running boards shall Orme after their move to the non-running platforms (the arrows show the direction of movement, the dash - initial position, blocks); figure 6 - diagram of the position of blocks of the non-running platforms after they are moved from the non-running platforms (the arrows indicate the direction of movement of the dash - initial position, blocks); 7 - move the bucket after unloading; Fig - drawing rock bucket; figure 9 - position of the bucket after use; figure 10 - frill-slope bench bucket.

Stripping unit (figure 1) consists of face 1 and moldboard 2 non-running platforms with poles 3 and 4 of these platforms, which are located on the sides of the operational trenches a, b, C, g, D. Mast 3 hole platform 1 is connected to the mast 4 moldboard platform 2 two traction-bearing ropes 5 and 6 attached to them by the blocks 7, 8, 9 and 10. (Figure 1, 7, 8, 9, 10 rope 6 is not visible, as shown in figure 2, 3, 4, 5, 6. Unit 9 1, 7, 8, 9, 10 is not visible, as shown in figure 2, 4, 5, 6.) On the one hand, the bucket 11 is connected to the mast 3 downhole rotary platform 1 lifting and pulling rope 12 hole non-tradable platform 1 (Fig 1)around the block 7. Unit 7 is connected with the traction-bearing ropes 5 and 6, the axis of rotation 13 and unit 9 (shown in figure 2, 4, 5, 6). On the other hand, the bucket 11 is connected to the mast 4 moldboard non-tradable platform 2 (figure 1) lifting and traction rope 14 moldboard running platform 2 around the block 8. Unit 8 is connected with the traction-bearing Cana is AMI 5 and 6, the axis of rotation 15 and the block 10 (see 2, 3, 5, 6).

Unit 7 lifting and pulling rope 12 hole non-tradable platform 1 is located between the traction-bearing ropes 5 and 6 and is rigidly connected with the axis of rotation 13 of the block 7 with a trailer carrying the rope 5 and the block 9 mounted for movement on the trailer carrying the rope 6 (2, 4, 5, 6). Unit 8 lifting and pulling the rope 14 moldboard non-tradable platform 2 is located between the traction-bearing ropes 5 and 6 and is rigidly connected with the axis of rotation 15 of the block 8 with traction-bearing rope 6 and the block 10 mounted for movement on the trailer carrying the rope 5 (see figure 2, 3, 5, 6).

This schematically in figure 1 elements of the trench is indicated by the following positions: 16 - Stripping ledge; 17 - internal dump; 18 - blown rock; a, e, W - path tsepelovo inner blade.

Stripping the unit works as follows.

Downhole non-tradable platform 1 set for Stripping ledge 16 on the distance from the upper edge of this ledge, excluding the collapse of the ledge under the impact load from the face of the non-tradable platform 1. Otvalnuyu non-tradable platform 2 mounted on the inner blade 17 at a distance from the upper edge of the blade, excluding the collapse of the blade under load from moldboard non-tradable platform 2. Downhole not oborotnaya running platform 1 moves along the Stripping of the ledge 16. Moldboard non-tradable platform 2 is moved along the upper inner edge of the blade 17. This excaberate blasted rock 18, moved and stored into the internal dump within the path a-e-W.

The study of two-sided bucket with the bottom of the V-shaped showed that the stability of the bucket 11 is provided at equal angles of inclination of the lifting and traction ropes 12 and 14 between the bucket 11 and the blocks 7 and 8, respectively downhole 1 and moldboard 2 non-running platforms. If the angle of lifting and pulling rope 12 in the area between the bucket 11 and the block 7 is less than the angle of inclination of the lifting and pulling the rope 14 in the area between the bucket 11 and the block 8, the bucket tilts his teeth down the side of hoisting and hauling rope 7 with a smaller angle of inclination. Under the scheme works and the bucket of a dragline, the balance of which is created by the presence of the balancing rope. When the angle of inclination of the traction rope is less than the angle of the hoisting rope and the absence of countervailing rope, the bucket sinks his teeth down the side of the traction rope.

The scheme of the suspension of the bucket 11 is tested on a model simulating the installation.

During the unloading of the bucket 11 on the top floor of otsypannoy moldboard zagadki on a path a-e-W lifting and pulling ropes 12 and 14 between the bucket 11 and the blocks 7, 8 hole 1 and moldboard 2 repower is the driving shaft of platforms, respectively, occupy a vertical position, providing the closest location unloaded breed to the moldboard of the non-tradable platform 2.

To move the bucket 11 in the process of bailing rocks in the side of the moldboard of the non-tradable platform 1 bucket 11 is transported in the direction of the face of the non-tradable platform 1 traction-bearing rope 5 blocks 7, 9 and lifting and pulling rope 12, the traction-bearing rope 6 blocks 8, 10 and lifting the traction rope 14, providing the vertical position of the lifting-pulling rope 12 in the area between the bucket 11 and the block 7, and an inclined - lifting and pulling the rope 14 in the area between the bucket 11 and the block 8. When the bucket 11 cant teeth down and lowered during its movement toward the face of the non-tradable platform 1. Unit 8 lifting and pulling the rope 14 moldboard rotary platform 2 stop above the upper edge of otsypannoy moldboard Zachodni within the path a-e-W, and the block 7 lifting and pulling rope 12 hole non-tradable platform 1 is above the stock (see Fig.7).

The weakening of lifting and pulling rope 12 hole non-tradable platform 1 bucket 11 is lowered and the tension of the hoisting and pulling the rope 14 moldboard non-tradable platform 2 move the bucket 11 in the process of bailing rocks in the side of the moldboard of the non-tradable platform 2. The angle of introduction regulate the lifting and pulling rope 12 hole non-tradable platform 1 (see Fig).

Before the gap is filled with rock bucket 11 from the stock and place it in the transport position to increase the angle of lifting and pulling the rope 14 in the area between the bucket 11 and the block 8 moldboard non-tradable platform 2 and reduce the angle of lifting and pulling rope 12 in the area between the bucket 11 and the block 7 of the face of the non-tradable platform 1 to their equality among themselves through tension trailer carrying a rope with 6 blocks 8, 10 and trailer carrying a rope with 5 blocks 7, 8 in the side face of the non-tradable platform 2 (see figure 1, 9).

Action trailer carrying ropes 5, 6 and lifting tractive 12, 14 is filled with rock bucket 11 tear from use and in case of equality of the angles of the lifting and traction rope 12, 14 between the bucket 11 and the blocks 7 and 8, respectively, and move in the direction of the inner blade 17 to the place of unloading.

To move the bucket 11 in the process of bailing breed in the side face of the non-tradable platform 1 bucket 11 is transported after his discharge in the side face of the platform 1 traction-bearing rope 5 blocks 7, 9 and lifting and pulling rope 12, the traction-bearing rope 6 and lifting traction rope 14, providing the vertical position of the lifting-pulling rope 12 in the area between the bucket 11 and the block 7, and an inclined - lifting-pulling rope 14. When the volume of the teeth of the bucket 11 to bow down, lowering it to the place of use when moving to the side face of the platform 1. Unit 7 lifting and pulling rope 12 is stopped above the upper edge of the Stripping ledge 16, block 8 lifting and pulling the rope 14 is above the place of use.

The weakening of lifting and pulling the rope 14 moldboard non-tradable platform 2 is lowered, the bucket 11 to the place of use and the tension of the hoisting and pulling rope 12 hole non-tradable platform 1 move the bucket 11 in the process of bailing in the side face of the non-tradable platform 1. The angle of introduction regulate lifting and traction rope 14 moldboard non-tradable platform 2.

Before the gap is filled with rock bucket 11 from the stock and place it in the transport position reduce the angle of lifting and pulling the rope 14 in the area between the bucket 11 and the block 8 and increase the angle of lifting and pulling rope 12 in the area between the bucket 11 and the block 7 to the equality of these angles to each other via a tension trailer carrying a rope with 6 blocks 8, 10 and trailer carrying a rope with 5 blocks 7, 9 in the side of the moldboard of the non-tradable platform 2.

After filling the bucket 11 rock action trailer carrying ropes 5, 7, lifting the trailer 12, 14 loaded bucket 11 tear from use and in case of equality of the angles of the lifting and traction rope 12, 14 between the bucket 11 oblokami 7, 8 respectively move in the direction of the inner blade to the place of unloading.

The tilting hoist and traction ropes 12, 14 in the area between the bucket 11 and the blocks 7 and 8, respectively, coincides in time with the movement of the bucket 11 from place of discharge to the place of use. Therefore unproductive operations are not performed, and the time is not spent. The tilting of these ropes before the gap is filled with rock bucket 11 from bailing and preparing it for transportation to the place of unloading is unproductive operation because it is made with a stationary bucket 11. However, the angle of lifting and traction rope two times smaller than the prototype that corresponds to the reduction of non-productive time in half.

When loading vehicles, Stripping the top of formation of the mineral and its bottom edge, the frill of the slope of the escarpment (see figure 10) the process of changing the angles of the lifting and traction rope and transportation of the bucket from the place of discharge to the place of use are combined in time completely, and after filling the bucket rock or minerals unproductive time spent on the preparation of the bucket to be removed from use and transportation, reduced by half. This reduces cycle times due to the decrease will continue the major non-productive operations.

Stripping Assembly including downhole and otvalnuyu non-tradable platform with masts, United traction-bearing rope, double-sided bucket with the bottom of the V-shaped associated with each mast by lifting and pulling the rope around the corresponding block, mounted on the traction-bearing rope, characterized in that it further comprises a traction-bearing rope connecting the downhole and otvalnuyu non-running platform, and the blocks downhole and moldboard non-running platforms placed between the traction-bearing ropes and connected with them so that they can move relative to each other together with traction-bearing ropes and the downhole unit non-running platform is rigidly connected with one of the traction-bearing rope, and the moldboard unit of the non-tradable platform with other traction-bearing rope.



 

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6 cl, 2 dwg

FIELD: mining, particularly to excavate, transport and stack of barren rock and mineral at placer, marine (off-shore) and bedded deposits.

SUBSTANCE: device comprises scraper, movable trestle arranged between guy ropes with movable blocks. Device also has scraper winch with head and end ropes arranged on the movable trestle. The scraper winch includes two drums with head and end ropes arranged on the drums. The ropes pass over pulleys fastened to movable trestle top. Installed on movable trestle is tension winch provided with tension cable passing over pulley. The second end of tension cable is fastened to the movable trestle. The end rope of the scraper and the tension cable are correspondingly connected with guy ropes by means of blocks associated with movable blocks of guy ropes through collars.

EFFECT: decreased costs of device production, increased output and decreased rock mining costs.

2 dwg

Quarry excavator // 2296860

FIELD: mining industry.

SUBSTANCE: invention relates to device for excavating and transporting rock mass and it can be used for selective open-cast mining without preliminary ripping from complex structural deposits of horizontal and gentle dip. Proposed excavator includes running mechanism, boom with receiving conveyor, transfer and waste conveyors, working member, control hydraulic cylinders, namely, crows, turning and boom lifting ones, bracket-slider connected with crowd and turning hydraulic cylinders for displacement along guides on housing of crowd hydraulic cylinders, frame connecting housing of crowd hydraulic cylinders hinge-fastened on head of boom, and telescopic receiving conveyor arranged between head part of boom and working member. The latter is hinge-connected to bracket-slider and is made in form of shovel without rear wall and with working edge provided with shock and static teeth.

EFFECT: increased efficiency of opencast mining owing to use of explosionfree technology and provision of selective excavation of ore reducing losses and impoverishment.

2 cl, 3 dwg

FIELD: mining, particularly to excavate, transport and stack of barren rock and mineral at placer, marine (off-shore) and bedded deposits.

SUBSTANCE: device comprises scraper, movable trestle arranged between guy ropes with movable blocks. Device also has scraper winch with head and end ropes arranged on the movable trestle. The scraper winch includes two drums with head and end ropes arranged on the drums. The ropes pass over pulleys fastened to movable trestle top. Installed on movable trestle is tension winch provided with tension cable passing over pulley. The second end of tension cable is fastened to the movable trestle. The end rope of the scraper and the tension cable are correspondingly connected with guy ropes by means of blocks associated with movable blocks of guy ropes through collars.

EFFECT: decreased costs of device production, increased output and decreased rock mining costs.

2 dwg

FIELD: earth moving facilities.

SUBSTANCE: invention relates to means of transfer of soil or mineral ore. Proposed excavator has machine tower with main and additional winches, tail tower, two lengths of carrying cable secured on two drums of additional which, two strands of pull cable secured on drums of main winch, and two buckets suspended from carrying cables by means of two running trolleys. Buckets are furnished with runners. Beam is secured on tail tower by flexible tie for rocking in vertical plane. Two ends of carrying cables and two sheaves are secured on ends of said beam together with strands of pull cable being closed through sheaves and installed for rocking in said plane.

EFFECT: reduced power losses, increased capacity of excavator, possibility of operation in working out placer deposits together with other machines.

8 dwg

The invention relates to a device for transporting bulk and bulk cargoes have been presented, namely to cable scrapers, and can be used for the development of fluvial gravel deposits of diamonds, for example, in Angola

The invention relates to a complex dual dozer blades on the basis of the mainline Sanei

The invention relates to a device for transporting bulk and bulk cargoes have been presented, namely to cable scrapers, and can be used for the development of fluvial gravel deposits of diamonds, for example, in Angola

The invention relates to a device for transporting bulk and bulk cargoes have been presented, namely to cable scrapers, and can be used for the development of fluvial gravel deposits of diamonds, for example, in Angola

The invention relates to a device for transporting bulk and bulk cargoes have been presented, namely to cable scrapers, and can be used for the development of fluvial gravel deposits of diamonds, for example, in Angola

The invention relates to the mining industry and can be used for open development of mineral deposits on bestransportnye system in difficult mining and geological conditions

The invention relates to the field of vehicles and can find application in mining and other industries in the production handling

The invention relates to the mining industry

FIELD: earth moving facilities.

SUBSTANCE: invention relates to means of transfer of soil or mineral ore. Proposed excavator has machine tower with main and additional winches, tail tower, two lengths of carrying cable secured on two drums of additional which, two strands of pull cable secured on drums of main winch, and two buckets suspended from carrying cables by means of two running trolleys. Buckets are furnished with runners. Beam is secured on tail tower by flexible tie for rocking in vertical plane. Two ends of carrying cables and two sheaves are secured on ends of said beam together with strands of pull cable being closed through sheaves and installed for rocking in said plane.

EFFECT: reduced power losses, increased capacity of excavator, possibility of operation in working out placer deposits together with other machines.

8 dwg

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