Plant to extract hard ore from thin beds by drilling-out

FIELD: mining.

SUBSTANCE: proposed plant comprises machine to drill pilot well arranged in drilling room, rock cutting tool, screw to displace sludge, winch with rope and mounting trolley. Besides, it comprises equipment to reception and transfer of sludge. Note here that said winch is arranged at said mounting trolley and located in transport-sorting face. Note also that screw and cable are secured to expander on the side opposite the pilot well mouth.

EFFECT: expanded operating performances and higher efficiency.

5 dwg

 

The invention relates to mining and can be used for developing low-ore formations fortress f≥4 MM Protodyakonov, including cryolite zones.

Known auger installation for the development of low-clay-sand ores method of drilling (Popov G., Ucov VA, Pakhomov V. Technology and engineering underground mining of ore deposits of sedimentary origin. M.: Nedra, 1975, str...168), which are becoming drilling made in the form of the screw. The front part of the screw includes a work tool (complete set), that the rotation destroys the breed. Auger due to the fact that the helical spiral on its surface directed towards the wellhead, moves the cuttings towards the mouth of the well by a receiving device, such as a pipeline.

The disadvantage of this auger installation is that its scope is limited to the fortress (no more than f≤4) develop rocks (coal seams, shale and so on), and the fortress of rocks, such as ore deposits Novoselskogo field reaches f=12...14 when the power of layers of about 0.6 m

A device for sinking itself workings method of drilling a pilot hole (patent RF №2004809 C1, CL ED 3/00 from 20.05.1991 g), which contains the drilling rig is placed in the drill (overlying the th) generation and associated through the column of drilling rods with extender. Drilling the pilot borehole drilling is carried out excavation in downstream production, i.e. drilling from the upper aquifer to the lower aquifer. After the release of the pilot wells in the lower horizon, for example in vehicle production, the oil column is fixed expander, which razvarivat pilot wells, i.e penetration rising generation. Rock working tool (roller bit) enshrined in the extender from the mouth of the pilot wells. Remotely from the rig, but the rig development, placed the winch cable, which from the mouth of the pilot bore is connected with the drill string through a special device can be moved along the drill string. When the breakage of the drill string specified special device and the cable hold the drill string in the well and allow to extract it on top of the horizon, i.e. in oil production.

The disadvantage of this device in U.S. Pat. Of the Russian Federation No. 2004809 C1 is the fact that such installation is possible when conducting vertical mine workings, i.e. rising, because otherwise specified special device moved along the drill string, will begin to interact with the borehole wall and the device will lose its functionality.

At the same time, it is known that a large amount of alomony seams strong ores are slightly inclined or sloping position. Thus, this device (U.S. Pat. Of the Russian Federation No. 2004809 C1) has a limited scope.

The closest technical solution is mining combine to develop strong ores of thin layers by the method of drilling (Mikhailov J.V. Underground development of mineral deposits. M.: Izd. center "Academy", 2008, str...229). This harvester is installed in the drilling formulating and using the drill and the famous rock-working tools, such as roller cone bits, performs drilling of pilot wells in the ore body. The mouth of the pilot bore is located in the drilling elaboration, and output it in another development, for example in the transport and sorting. After drilling the pilot hole in the transport and sorting the development dismantled a working tool, which drilled the pilot hole and the drill string is attached to the expander, which is delivered to the drilled hole by means of a mounting cart. Rock working tool extender, such as roller cone bits, fixed in the extender from the mouth of the pilot wells. Drill cuttings generated during the drilling of pilot wells, gravity moves to the exit of the drilled wells in the direction of transport and sorting of development and this development is captured and the processing is entangled equipment, part of a mining installation for future issuance him on the day surface.

The drawbacks of the prototype is the following:

1) the Scope of the prototype is limited, because the harvester can be used at angles of inclination in the range of 10...12 degrees or more. This is because at smaller angles of inclination of the drilling sludge is not moved by gravity through drilled hole, i.e. hinders the operation of the expander. Thus, to produce a strong ore method of drilling of thin layers with angles of incidence less than 10...12 degrees is impossible. In addition, a large amount of thin layers with fortress ore f≥4 is located in the cryolite zone having a temperature below 0°C. Therefore, gravity moving drill cuttings containing moisture, expanding well difficult;

2) after drilling the pilot bore extender extends to the mouth of the pilot borehole, i.e. in oil production. Therefore, to drill each pilot hole is necessary to move the expander in the transport and sorting output (or below the horizon). The movement is, as a rule, any vehicle for mining to the trunk, the expander down the trunk, and then delivered to the pilot borehole, subject to rasborinae the Yu, for fixing it to the drill column. This number of transport operations leads to poor performance of the mining installation and reduces its effectively.

Thus, the known device is the prototype has a limited scope and poor performance.

The aim of the present invention is the enhanced operational capabilities and efficiency of the installations for the extraction of ores strong of thin layers by the method of drilling.

This goal is achieved by the fact that the winch is placed in the transport and sorting the development and mounted on the mounting cart, and the screw and the cable attached to the expander side, opposite the mouth of the pilot bore, and the extender is made with the tab in the form of a square to transfer the rotation of the auger having a spiral towards in the direction opposite to the mouth of the pilot bore, and between the cable and the screw placed the bracket to allow the free rotation of the screw.

The invention is illustrated by drawings, figure 1...5.

1 schematically shows a General view of the installation on which the drilling machine for drilling a pilot borehole and for subsequent drilling of this well placed in the drilling development and remotely located mounting trolley, winch with rope and equipment for collection and transportation of drilling grinding the mA is placed in the transport and sorting the development.

Figure 2 schematically shows the cross section a-a, which explains the mutual position in the transport and sorting the development and installation trucks, winch with rope and equipment for receiving and transporting drill cuttings.

Figure 3 presents a General view of the extender, its relationship with the auger and rope, as well as its location relative to the mouth of the pilot wells and winch installed on the mounting cart.

Figure 4 shows the section b-B, illustrating a set of elements and the relationship between the screw and the cable to allow the free rotation of the screw.

Figure 5 shows the section b-b, illustrating the relative positions of the screw and extender and a form of communication between them, providing interaction between a screw and extender.

Installation for the production of solid ore from thin layers by the method of drilling comprises drilling rig 1, enshrined in drilling development 2 thrust jacks 3, having a drilling column 4 of the drill rods, equip through the threaded connection 5 drilling tool, for example a roller with a chisel (not shown), for drilling the pilot hole 6, the mouth 7 which is placed in the body of the ore formation.

The installation includes remote mounting trolley 8, placed in the transport and sorting formulation 9, equipped with a winch 10 cable 11. Using polyelectrolyte 12, for example, hydraulic jacks, hoist 10 can move in the vertical plane. The winch 10 has a lever 13 to rotate (or can be equipped with electric drive).

For drilling the pilot hole 6 installation has the expander 14, the rock-breaking tool which, for example cone 15, secured by mouth 7 pilot-bore 6. The expander 14 is performed with the projection 16 in the form of a square. Opposite the mouth 7, the expander 14 through the projection 16 is connected to the screw 17, interacting with the wall of the drilled bore 18 by means of screw spirals, with the direction in the direction opposite to the mouth of the 7 pilot wells. The fastening element 19, such as a cotter pin or the pin provides a reliable connection between the expander 14 and the screw 17.

To the end of the screw 17 through the mounting element 20, such as a bolt, attached to the bracket 21, which is connected with the cable 11 and the through hole 22 having a diameter greater than the diameter of the element 20, provides the rotation of the screw 17, relatively free of the rope 11.

For receiving and transporting drill cuttings obtained while drilling the pilot bore 6, the unit has a receiving hopper 23 is provided with a sludge pump 24. Drill cuttings through the pipeline 25 is transported into the receiving vessel 26, for example in the cart moved along the rail put the 27 in the transport and sorting formulation 9. Lifting device 12 is protected by the apron 28 from the effects of drill cuttings and water (or air) while drilling the pilot bore 6 and when the drilling is carried out by the holes 29.

Does the installation for the extraction of ores strong of thin layers by the method of drilling as follows.

By means of the drilling rig 1, the drill string 4 and the drilling tool (not shown) is carried out by known techniques, the drilling of the pilot bore 6, the mouth 7 which is placed in the body of the ore formation, and the output of the pilot-bore 6 is in the transport and sorting production 9. To the output of the pilot-bore 6 is served by rail 27 of the mounting cart 8 containing the winch 10 cable 11, the expander 14 and the screw 17. The expander 14 through the threaded connection 5 is connected with the drill string 4, and begins the process of drilling a pilot bore 6 to a length not more than the length of the screw 17. Then the dilator 14 is supplied by the machine tool 1 to the output of the drilled bore 18, is connected through the projection 16 and the fastening element 19 with a screw 17, which, in turn, is connected through the bracket 21 with the wire 11, and the process of drilling the pilot hole 6 continues.

Cuttings, due to the helical spiral of the auger 17 is directed in the direction opposite to the mouth of the 7 pilot-wells moved to the exit of the drilled bore 18 to receive the second funnel 23, then the slurry pump 24 through the pipe 25 is transported in the vessel 26 and further to the place of its processing.

When the expander 14 the mouth of the 7 pilot wells 6, i.e. at the end of the process of drilling, the expander 14 is detached in the drilling formulation 2 from the drill string 4 and together with the auger 17 and the cable 11 is placed in the drilled hole 18. Then the arm 13 rotates the winch 10 and the wire 11 move the expander 14 and the screw 17 through the drilled hole 18 in the transport and sorting production 9 on the mounting cart 8. Then the carriage 8 moves along the track 27 to follow the pilot hole 30 for drilling, moves to her loading hopper 23 (if necessary and the equipment for collecting drill cuttings), lifting device 12 is placed winch 10 at the desired height, the expander 14 is attached to the drill string 4, and the process of ore extraction method of drilling is repeated.

By placing the screw 17 on the side opposite the mouth of the 7 pilot bore 6, and the direction of the spiral screw in the direction opposite to the mouth of the 7 pilot bore 6, and the connection of the screw 17 with the cable 11 from the winch 10, not placed in the drilling generation 2, it is possible to drilling ore not only in inclined seams, but in flat and horizontal, and also in the cryolite zone. Fixed operations tra is spartanovka expander 14 through the trunks (or other output) to its mounting location on the drill string.

Installation for the production of solid ore from thin layers by the method of drilling, including drilling machine for drilling a pilot hole, placed in the drilling development and associated drilling through a column extender for subsequent drilling the pilot borehole, the rock-breaking tool, enshrined in the extender from the mouth of the pilot wells, auger for moving drill cuttings, winch cable, mounting cart and equipment for collection and transportation of drill cuttings, remotely placed in the transport and sorting the formulation, characterized in that the winch is placed in the transport and sorting the development and mounted on the mounting cart, and the screw and the cable attached to the expander side, opposite the mouth of the pilot bore, and the extender is made with the tab in the form of a square to transfer the rotation of the auger having a spiral towards in the direction opposite to the mouth of the pilot bore, and between the cable and the screw placed the bracket to allow the free rotation of the screw.



 

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