US3471201A - Mineral mining arrangement including track for a mining machine - Google Patents

Mineral mining arrangement including track for a mining machine Download PDF

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Publication number
US3471201A
US3471201A US685503A US3471201DA US3471201A US 3471201 A US3471201 A US 3471201A US 685503 A US685503 A US 685503A US 3471201D A US3471201D A US 3471201DA US 3471201 A US3471201 A US 3471201A
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United States
Prior art keywords
mining
mineral
conveyor
support
supports
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Expired - Lifetime
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US685503A
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English (en)
Inventor
Fred Small
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Gullick Ltd
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Gullick Ltd
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Publication date
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0445—Extensions of the base member supporting the conveyor

Definitions

  • An elevated forwardly projecting member is provided on the front of the support and in conjunction with corresponding members of other supports, positioned along the mineral face, carries an elevated track for a mineral mining machine.
  • the front of the support also This invention is for improvements in or relating to methods of mineral (e.g. coal) mining and equipment for use in such methods.
  • a method of longwall mining now well known makes use of self-advancing roof supports which are advanced in turn or in groups towards the newly exposed mineral face following the advance of the face conveyor.
  • the supports comprise two units one behind the other and hydraulic ram means which, when operated in one direction, using the rear unit as an abutment, pushes the front unit towards the newly exposed mineral face and when operated in the other direction, using the front unit as an anchorage, advances the rear unit, the units having temporarily, in turn, been relieved of roof pressure.
  • Such methods have not heretofore been applicable to short wall methods of mining (eg the working of the stable) and one object of the present invention is to apply such methods to short wall mining.
  • a method of mining in which a plurality of self-advancing two-unit roof supports, carrying a conveyor means and elevated guide or support means for a mineral mining machine, are advanced collectively by successively advancing the units of the supports, the conveyor means being positioned so that as the supports are advanced mineral is collected and carried away by the conveyor means to, for example, a conveyor set at an angle'(e.g. normal) to the mineral face.
  • two-unit roof supports where used in this Specification is intended to include supports having units one behind the other and also supports having units in side-by-side relationship.
  • a mine roof support comprising front and rear or side-by-side support units connected together by pressure-fluid actuated means operative to advance the units in turn, a forwardly projecting member on the front of the support being adapted, in conjunction with corresponding members of other supports positioned along a mineral face, to carry elevated guide or support means Patented Oct. 7, 1969 ice for a mineral mining machine, the front of the support having or being adapted to have mounted on it a conveyor means for collecting and carrying away the mined mineral.
  • a part of the conveyor means on the front of the front units of the supports is in the form of a ramp plate so that the mined mineral is gathered onto the conveyor means as the support system is advanced.
  • the face conveyor means comprises an endless conveyor
  • the front support unit, or at least one leg or prop thereof, is positioned between the oppositely moving lengths or runs of said endles conveyor.
  • Such an arrangement has the advantage that the front support units are set relatively close to the mineral face as compared with arrangements in which the whole of the conveyor and a loading ramp associated therewith are located to the front of the roof supports.
  • a convenient form of endless conveyor is that comprising a series of paddles attached to an endless chain and arranged to travel along troughs or the like.
  • the conveying means may comprise a ramp at the front of the supports which, as the supports are advanced, picks up the mined mineral and directs it onto a longitudinal conveyor (e.g. a jogging conveyor) at the rear of the ramp.
  • a longitudinal conveyor e.g. a jogging conveyor
  • the members on the supports which carry the guide or supporting means for the mineral mining machine may be adjustable in a vertical plane to enable the machine to be steered or adjusted in accordance with any faults or undulations in the mineral seam being mined. This adjustment may be effected by hydraulic ram means.
  • the conveyor will also have a degree of flexibility in the vertical plane but generally it will be a rigid unit so far as any lateral movement is concerned inasmuch as it is proposed to advance it bodily when a plurality of the front units of the supports are advanced.
  • FIGURE 1 is a diagrammatic plan view with the equipment according to the invention installed therein,
  • FIGURE 2 is a diagrammatic side elevation of the equipment shown in FIGURE 1,
  • FIGURE 3 is a side elevation of one of the roof supports, and its associated equipment, several of which go to make up the roof supporting and mining system shown in FIGURES 1 and 2, and
  • FIGURE 4 is a plan view of FIGURE 3.
  • the roof support and mining system shown in FIG- URES l and 2 comprises a plurality of roof supports spaced apart along the face F.
  • Each roof support comprises a rear unit and a front unit.
  • the rear unit has a base 10 on which there is mounted, in pairs, one behind the other, hydraulically extensible telescopic legs or props 11.
  • the props 11 support on their upper parts in the usual way a roof-engaging structure or canopy 12.
  • the front unit of the support comprises a base 13 on which there is mounted a single hydraulically extensible telescopic leg or prop 14.
  • the prop 14 supports at its upper part in the usual way a cantilever roof-bar 15.
  • Each roof support also includes a hydraulic support advancing ram having its cylinder 17 connected (e.g. by laterally projecting trunnions) to the rear unit of the support and its piston 18 connected to the front unit of the support.
  • a hydraulic support advancing ram having its cylinder 17 connected (e.g. by laterally projecting trunnions) to the rear unit of the support and its piston 18 connected to the front unit of the support.
  • the base of the front unit of the support also carries bearing brackets 19 which pivotally support, at 20, a forwardly projecting arm or cantilever 21.
  • the arm 21 is supported by a hydraulic ram 22.
  • the arms 21 of the several roof supports serve to support between them the rails 23 on which the coal cutting or other mineral mining machine runs along the face.
  • the rails 23 may be in sections coupled together as inddicated at 24 in FIGURE 4. The coupling provides for flexibility in the vertical plane and rigidly against lateral flexing.
  • each support also carries conveyor sections comprising a ramp plate 25 and a trough 26.
  • An endless chain 27 carrying paddles or the like 28 runs along the ramp plate 25 and the trough 26.
  • the ramp plates and troughs 25 and 26 of neighbouring roof supports are coupled together by coupling devices 29 which give the conveyor as a whole some vertical or up-anddown flexibility.
  • coal is cut and dislodged from the face and deposited on the ramp 25 and neighbouring parts of the conveyor. This coal is moved along the ramp 25 and subsequently along the trough 26 until it is deposited in a road-head conveyor 30 as shown in FIGURE 1.
  • the cutting machine can remain on the rails 23 during the advance thereof towards the face.
  • the machine su-mps (cuts) in during advance of the forward support unit.
  • the canopy 12 is slotted, as shown in FIGURE 3 to receive the cantilever roof-bar 15 so that said roof-bar can move forwardly relatively to the canopy 12 and provide roof support close up to the newly exposed face.
  • the coal cutting machine can be steered or adjusted vertically relatively to the face by adjusting the arms 21 by means of the hydraulic jacks 22.
  • each unit may have a cantilever, similar to the cantilever 21, on its forward part and carrying a section of rail adapted to form a part of a track for the coal cutting machine.
  • the front of one or each unit may carry a section of the conveyor 25, 26, 27, 28.
  • a mineral mining arrangement including a plurality of self-advancing roof supports which are spaced apart along the length of a mineral face, an elevated forwardly projecting cantilever member pivoted at the front of each support, a pressure-fluid jack supporting each such cantilever member for vertical adjustment thereof, a section of track, for a mineral mining machine, on each of said elevated forwardly projecting cantilever members, a section of conveyor at the front of each support and positioned immediately below the elevated forwardly projecting cantilever member thereof, said sections of track and sections of conveyor on the plurality of supports aligning with one another when the supports have all been advanced towards said mineral face preparatory to the mining of mineral therefrom and the track sections so aligned serving as a track for guiding a mineral mining machine along said mineral face and the conveyor sections when so aligned receiving said mined mineral.
  • a mining arrangement as claimed in claim 1 wherein means is provided for hingedly connecting said conveyor sections together for vertical articulation but rigidly against lateral flexing.
  • a mining arrangement as claimed in claim 1 wherein a forward part of each section of conveyor is in the form of a ramp plate which is operative to pick up mined mineral as the support is advanced.
  • a mining arrangement as claimed in claim 1 wherein a chain means travels along said conveyor sections and said chain means carries scrapers which convey mined mineral along the conveyor sections.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
US685503A 1966-12-16 1967-11-24 Mineral mining arrangement including track for a mining machine Expired - Lifetime US3471201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB56569/66A GB1201150A (en) 1966-12-16 1966-12-16 Improvements in or relating to mining equipment

Publications (1)

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US3471201A true US3471201A (en) 1969-10-07

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Application Number Title Priority Date Filing Date
US685503A Expired - Lifetime US3471201A (en) 1966-12-16 1967-11-24 Mineral mining arrangement including track for a mining machine

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US (1) US3471201A (de)
DE (1) DE1583039B1 (de)
GB (1) GB1201150A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658385A (en) * 1970-07-15 1972-04-25 Coal Industry Patents Ltd Mining machine having vertically adjustable chain cutter
US3677603A (en) * 1969-10-16 1972-07-18 Gullick Dobson Ltd Mine roof supports
FR2439295A1 (fr) * 1978-07-14 1980-05-16 Coal Industry Patents Ltd Installation d'exploitation miniere pour un systeme d'abattage
CN102182487A (zh) * 2011-05-09 2011-09-14 郑州煤矿机械集团股份有限公司 流体充填液压支架

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010013084U1 (de) 2010-12-08 2012-03-12 Bucyrus Europe Gmbh Abbauförderer für Gewinnungsanlagen und Rinnenelement hierfür
DE202012100777U1 (de) 2012-03-05 2013-06-12 Caterpillar Global Mining Europe Gmbh Plattenbandförderer für Gewinnungsanlagen und Transportplatten hierfür

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1047473A (de) *
DE1025808B (de) * 1954-07-30 1958-03-13 Maschfab Eisengiesserei Beien In ganzer Laenge gegen den Abbaustoss bewegliche Schraemeinrichtung zur Gewinnung von Kohle od. dgl. mit einer in Stosslaengsrichtung umlaufenden endlosen Schraemkette
US3357742A (en) * 1964-11-14 1967-12-12 Gewerk Eisenhuette Westfalia Mining arrangement including angularly displaceable guide means for a mining machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759814U (de) * 1957-11-15 1958-01-16 Eickhoff Geb Fuehrungseinrichtung fuer gewinnungsmaschinen fuer die steile lagerung.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1047473A (de) *
DE1025808B (de) * 1954-07-30 1958-03-13 Maschfab Eisengiesserei Beien In ganzer Laenge gegen den Abbaustoss bewegliche Schraemeinrichtung zur Gewinnung von Kohle od. dgl. mit einer in Stosslaengsrichtung umlaufenden endlosen Schraemkette
US3357742A (en) * 1964-11-14 1967-12-12 Gewerk Eisenhuette Westfalia Mining arrangement including angularly displaceable guide means for a mining machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677603A (en) * 1969-10-16 1972-07-18 Gullick Dobson Ltd Mine roof supports
US3658385A (en) * 1970-07-15 1972-04-25 Coal Industry Patents Ltd Mining machine having vertically adjustable chain cutter
FR2439295A1 (fr) * 1978-07-14 1980-05-16 Coal Industry Patents Ltd Installation d'exploitation miniere pour un systeme d'abattage
US4272129A (en) * 1978-07-14 1981-06-09 Coal Industry (Patents) Limited Mineral mining installation
US4372618A (en) * 1978-07-14 1983-02-08 Union Special G.M.B.H. Self-advancing mineral mining installation including tilting machine support
CN102182487A (zh) * 2011-05-09 2011-09-14 郑州煤矿机械集团股份有限公司 流体充填液压支架
CN102182487B (zh) * 2011-05-09 2013-04-03 郑州煤矿机械集团股份有限公司 流体充填液压支架

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Publication number Publication date
DE1583039B1 (de) 1971-03-04
GB1201150A (en) 1970-08-05

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