Device for excavation of rock in the quarry
(57) Abstract:The invention relates to the field of surface mining. The device includes a grapple, tethered aerostatic machine on which the rope hanging from the grapple, flexible communication delays and winch installed on the working platform of the horizon on the pit wall can move aerostatic device above the surface of the working area of the joint action of all the winches so that the grapple makes a pendulum swing on the rope in the direction dumps for unloading. The invention is directed to reducing the cost of development of extended fields. 3 Il. The invention relates to the field of surface mining and mainly can be used in the development of extensive deposits of high power.A device for excavation of rocks in a career - backhoe dragline comprising a working body connected traction and lifting ropes with traction winches and lifting boom with the guides and head blocks pivotally mounted on the rotary platform and held strelovymi ropes (see , for example, Arsentiev A. I. Opening and systems development career fields. - M.: Nedra, 1981, sasakia specific energy consumption for the excavation of rocks.A device for excavation of rocks in his career, including grapple with the air screw engine, tethered aerostatic machine on which the rope hanging from the grapple, flexible communication delays and winch installed on the working platform of the horizon on one of the pit can move aerostatic device above the surface of the working zone (RF application N 94-009824, E 21 C 41/26, publ. 10.12.95).A disadvantage of the known device is the most cost screw the motor to the complexity of managing his work with the movements of the grapple.The objective of the invention is to simplify the design of the device while reducing its cost.The problem is solved in that known device for excavation of rocks in his career, including grapple, tethered aerostatic machine on which the rope hanging from the grapple, flexible communication delays and winch installed on the working platform of the horizon on one of the pit can move aerostatic device above the surface of the working area, with further winches installed on the second Board of the quarry from the side opposite the working space g makes a pendulum swing on the rope towards the dump to unload on them.The invention is illustrated by drawings. In Fig. 1 (main view) and Fig. 2 (top view) shows the device described. In Fig. 3 schematically shows the operation of the moving rock mass from the bottom to dump.The device consists of placed over the area of mining operations 1 tethered aerostatic device (ASA) 2, which is suspended on a rope 3 grab 4. the power ring ASA attached flexible communication delays 5, zaparovannyi on the winch 6, 7, 8, 9. Winch 6, 7 installed from the side of the piles 10 and winches 8, 9 from the side of the working face 11.The device operates as follows.Over the area of mining operations 1 place ASA 2 grapple 4, by setting the boundaries of the zone winches 6, 7, 8, 9, which are connected with a power ring ASA 2 by means of flexible connections-braces 5. Adjustment of the lengths of flexible connections-braces set of SPEAKERS over the working face 11, dropping the grapple 4 and fill it rocks. Then, as shown in Fig. 3, the joint action of the winch 6, 7, 8, 9 move ASA 2 from position I to position II, accompanying this process by maintaining a grab rope 3 taut by its gradual unwinding without separation of the gripper 4 from the surface rabochei flexible links-5 guys taking ASA from position II to position III. Thus there is a separation of the gripper 4 from the surface of the working face 11, the grapple makes a pendulum swing on the rope 3 in the direction of the piles 10 and unloading on them.After a failover zone 1 winch 6, 7, 8, 9 move to the next position in the front of mining operations with the placement of SPEAKERS 2 on the next area. Shifting of the winches can be done in various ways, for example as follows. Winches 7, 9 move the tractor to work on the new Parking lot, where they make their fasteners. The winding flexible guy winch 6 pulls to itself AS. A special device to produce engagement of the winch 6 with ASA and then, by the action of the winch 7, by air due to the lifting force of the AC winch 6 is moved to another position. Similarly produce shifting of the winch 8.The proposed device when compared to the prototype has a lower cost, due to a lack of complex systems control the movement of the grapple. Device for excavation of rocks in his career, including grapple, tethered aerostatic machine on which the rope hanging from the grapple, flexible communication delays and winch installed on the working platform of the horizon on one of the pit wall with the supplied additional winches, mounted on the second Board of the quarry from the side opposite to the working area of the horizon of the first pit to move the aerostat joint action of all the winches so that the grapple makes a pendulum swing on the rope towards the dump to unload on them.
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
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.
SUBSTANCE: proposed captive balloon includes gas-carrying envelope with hole at lower pole and vertically oriented hose made from gastight elastic material whose edges are secured to edges of hole in lower pole of envelope forming gastight joint. Hose is located inside envelope which has hole at upper pole whose edges are connected with edges of other end of hose forming gastight joint. Balloon is provided with rod whose ends are passed through holes at upper and lower poles of envelope. Two movable washers freely mounted on rod are rigidly connected with edges of hose over perimeter at point of attachment of edges of hose to edges of hole. Hose is widening from center to ends. Located on the outside of envelope on side of upper and lower poles are aprons whose peripheral sections are fastened with envelope by means of elastic rods; central section is rigidly connected with one of rod ends.
EFFECT: retaining of envelope shape at change in volume.
3 cl, 2 dwg