Scraper for the development of fluvial gravel deposits

 

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. Scraper for the development of fluvial gravel deposits consists of two lateral walls, on top interconnected by transverse link, a back wall, towed devices for the head and tail traction rope. A cross connection is made in the form of a cover connected to the rear wall of the scraper. Longitudinal profile of the formed surface with them outlined the curve of variable radius increasing from the lower edge of the rear wall to the edge of the cover at the side of the rope. The cover is perforated longitudinally oriented slit holes placed in a checkerboard pattern. Increases the performance and efficiency of the scraper. 2 Il.

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 famous cable car-scraper uchebnykh devices the head and tail ropes (Pukhov Y. C. mining operations. - M.: Nedra, 1991, S. 110-111, Fig.73, d).

However, a disadvantage of the known scraper is the possibility of losing part captured by the scraper diamondiferous rock due to its removal through the upper edge of the rear wall of the scraper under the action of the oncoming flow of water.

Known scraper for the development of fluvial gravel deposits (prototype), consisting of two lateral walls, on top interconnected by transverse link, a back wall, towed devices for the head and tail traction rope (RF Patent 2181815, CL 7 E 02 F 3/54, E 21 41/30, publ. 27.04.2002).

The disadvantage even though is the removal through the upper edge of the rear wall of the scraper part of the diamondiferous rock, captured by the scraper during its movement along the bottom of the downstream flow due to the counter pressure of the water.

The removal movable scraper in the water of the goods is confirmed by our experimental studies. When the movement of the scraper in submerged condition, the thickness of the layer accumulated at the rear of the rock mass begins to exceed the height of the rear wall of the scraper and is discharged through the upper edge of the outside of the scraper. This causes Y is to increase the efficiency of the scraper installation by eliminating losses diamondiferous rock and increase productivity.

The problem is solved due to the fact that the scraper for the development of fluvial alluvial deposits, consisting of two lateral walls, on top interconnected by transverse link, a back wall, towed devices for the head and tail traction rope, according to the invention the cross-connection is made in the form of a cover connected to the rear wall of the scraper, and the longitudinal profile of the formed surface with them outlined the curve of variable radius increasing from the lower edge of the rear wall to the edge of the cover at the side of the rope, the lid is perforated longitudinally oriented slit holes placed in a checkerboard pattern.

Scraper for the development of fluvial gravel deposits is shown in Fig.1 is a side view, Fig.2 is a plan.

The scraper consists of two side walls 1 and 2, cover 3, a top connecting the side walls 1 and 2, and the rear wall 4. The lid 3 is connected to the rear wall 4, and a longitudinal profile formed by the cover 3 and rear wall 4, forms a continuous surface and outlined the curve of variable radius R. the radius R is increased from the lower edge 5 of the rear wall 4 to the edge 6 of the cover 3 at the side of the rope 7. Golo is connected with a coupling 11. Cover 3 perforated longitudinally oriented slit holes 12 arranged in staggered relation to each other.

Scraper for the development of fluvial gravel deposits proceeds as follows. Development of fluvial deposits, for example, diamonds, by pulling the scraper across the river on her box (not shown) using a three-drum scraper winch placed on one of the banks of the river (not shown). When moving even though there is a gradual filling of the internal volume of sediments containing diamonds. Cover 3 excludes the possibility of taking part diamondiferous sediments beyond the scraper, and a curved surface profile formed in the rear wall 4 and the cover 3, defined by the curve of variable radius R, facilitates the placement of the captured species throughout the volume of the scraper, increasing its useful capacity.

The slotted holes 12 in the cover 3 help remove water entering the inner cavity of the scraper in its motion, reducing the likelihood of outflow of diamondiferous rocks outside scraper.

Features of the invention increase the efficiency of the cable-scre>ormula inventions

Scraper for the development of fluvial alluvial deposits, consisting of two lateral walls, on top interconnected by transverse link, a back wall, towed devices for the head and tail traction rope, characterized in that the cross-connection is made in the form of a cover connected to the rear wall of the scraper, and the longitudinal profile of the formed surface with them outlined the curve of variable radius increasing from the lower edge of the rear wall to the edge of the cover at the side of the rope, the lid is perforated longitudinally oriented slit holes placed in a checkerboard pattern.

 

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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

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

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

2 dwg

Stripping aggregate // 2396394

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

FIELD: mining.

SUBSTANCE: system includes bottom-hole, dumped and intermediate running fixed platforms connected by means of two running lines, two-sided bucket with V-bottom connected to each mast by means of hoisting-hauling line enveloping the corresponding sheave arranged between running lines with possibility of movement relative to each other together with running lines. Intermediate running fixed platform is equipped with two supporting sheaves of running lines and one supporting sheave of hoisting-hauling lines. Rotation axis of hoisting-hauling line sheave has the possibility of being moved along guide curves of running lines.

EFFECT: improving efficiency, reducing the wear of lines and improving environmental conditions owing to equipping the mast of intermediate running fixed platform with the most effective equipment.

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FIELD: construction.

SUBSTANCE: machine comprises a scraper of box type (1), a scraper hoist (2), head (3) and tail (4) traction ropes, diverting blocks (5) for traction ropes, a loading ramp (6). The scraper comprises side walls (7) and a rear wall (8), in its lower part inclined at the angle to the horizon. On the rear inclined wall of the scraper at the angle (10) of fixation of a tail traction rope to the scraper on brackets (11, 12) fixed on the walls a shaft (14) of cylindrical shape is installed with the possibility of rotation on the horizontal axis (13), and its lower edge is arranged with displacement downwards relatively to the lower edge of the rear wall of the scraper and is distanced from it along the horizontal line towards the tail traction rope. Brackets on the rear wall are fixed with the help of a board (15) with the possibility of its displacement in the vertical plane along the wall and fixation on it with the help of fastening elements (16). The shaft axis is installed in horizontally aligned slots (17) of brackets with the possibility of their displacement and fixation.

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