US3691775A - Mineral mining installations - Google Patents

Mineral mining installations Download PDF

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Publication number
US3691775A
US3691775A US45471A US3691775DA US3691775A US 3691775 A US3691775 A US 3691775A US 45471 A US45471 A US 45471A US 3691775D A US3691775D A US 3691775DA US 3691775 A US3691775 A US 3691775A
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United States
Prior art keywords
props
conveyor
mineral face
installation according
face conveyor
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Expired - Lifetime
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US45471A
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English (en)
Inventor
Bernhard Holtrup
Johannes Laabs
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/10—Anchorings for conveyors

Definitions

  • the props are operably divided into a first set of props [52] U.S. Cl. ..61/45 D nn t d r m n with th tr ugh a a nd [51] Int. Cl. ..E2ld 23/00 set of props connected for movement with the mineral [58] Field of Search ..61/45 D; 299/11, 31, 33; face conveyor and slidably guided on a beam provided 248/357; 198/126 on the trough. [56] References Chad A shifting ram connected between the trough and the second set of props is used .to relatively move the UNITED STATES PATENTS trough and the mineral face conveyor.
  • a beam is provided which absorbs the forces transmitted by the roadway conveyor during the shifting operation.
  • a beam of this kind is connected with roof support props which are braceable between the roof and the floor of the mine working.
  • the roadway conveyor is movable along the beam, so that when the latter is fixed the roadway conveyor can move with the mineral face conveyor to thereby keep pace with the progress of working for a certain time until the beam needs advancing. At this stage the end of the roadway conveyor is fixed and the beam fed forward.
  • the roadway conveyor should be connected with a loading conveyor built into the roadway in front of the road conveyor and that this loading conveyor should be advanced simultaneously with the roadway conveyor.
  • the force transmitted by the roadway conveyor would be absorbed by a beam positioned parallel with the loading conveyor.
  • the connection between the end of the roadway conveyor and the loading conveyor would be provided by a reinforced length of channelling belonging to the latter conveyor.
  • a general object of this invention is to provide an improved installation of the type generally discussed hereinbefore.
  • a mineral mining installation comprising a mineral face conveyor, a roadway conveyor extending generally perpendicularly to the said mineral face conveyor, a trough member adapted to receive the roadway conveyor and movable in relation to the roadway conveyor, a set of roof support-props disposed on the side of the roadway conveyor adjacent the mineral face conveyor and connected to said trough member for movement therewith, a further set of roof support props connected to one another and to the mineral face conveyor for movement therewith, and shifting means for causing relative movement between the mineral face conveyor and the trough member.
  • the trough member is provided with a guide beam on the side thereof adjacent the mineral face conveyor, the mineral face conveyor and the further set of props being slidably guided relative to said beam.
  • the further set of props and for the mineral face conveyor prefferably have guide sleeves each of which slidably engages the beam.
  • the sleeves can be interconnected by means of connecting pieces which are flexibly connected or articulated to said sleeves.
  • props especially adapted for the purpose in view can be utilized.
  • the position of the props in relation to one another can be varied by removing and replacing-the aforementioned connecting pieces as and y when required.
  • the shifting means is in the form of a hydraulically operated piston and cylinder unit mounted above the guide beam, the cylinder of said unit being connected to the further set of props and the piston rod of said unit being connected with the trough member.
  • the first set of props which are rigidly connected with the trough member, and the further set of props, which are displaceable in respect of the trough member, have to support the roof at the transition point from the mineral face gallery and the roadway gallery.
  • the props are therefore preferably equipped with head pieces which engage the roof.
  • the head pieces of the further set of props are displaced relative to the head pieces of the first set of props by a distance corresponding approximately to the width of each head piece.
  • each prop of the first set of props is disposed outwardly beyond the side of the roadway conveyor adjacent the mineral face conveyor in relating to the further set of props.
  • each prop of the first set of props is preferably displaceable in a direction transversely of the trough member with the aid of a shifting ram.
  • the transversal displaceability of the first set of props makes it possible to adapt the installation to irregularities in the width of the roadway gallery. Furthermore correction can be made, if necessary, to the direction of movement of the trough member and thus the roadway conveyor.
  • each prop of each set of props is provided with means for varying the angle of inclination of the prop in relation to the horizontal.
  • the purpose of this measure is to ensure that the props can in each case be adjusted, before the bracing step to the best possible position for the prevailing conditions. Since, however, the angular position of the props, during the bracing processes, may still change as a result of the roof setting pressure, the adjusting means determining the angle of inclination should be relieved of load when the props are set so that it is not subjected to any excessive strain.
  • the means for varying the angle of inclination each of the props is in the form of a hydraulically operated piston and cylinder unit.
  • Each prop preferably also has resilient means adapted to bias the prop into a vertical position.
  • the transfer point moves along the trough member.
  • the side plate of the roadway conveyor which faces towards the mineral face conveyor to be provided at the transfer zone with a recess through which the coal face conveyor passes. Additional side places can be situated on'both sides of the mineral face conveyor and made displaceable 'along the sections of the side plates at either side of the recess at least to an extent corresponding to the length of the stroke of the shifting means.
  • FIG. 1 is a plan view of a coal mining installation made in accordance with the present invention
  • FIG. 2 is an end view of the installation shown in FIG. 1.
  • FIG. 3- is a more detailed view of certain elements of the installation of FIGS. 1 and 2 related to the coal face conveyor thereof;
  • FIG. 4 is a view partially in section taken along the line 4-4 ofFIG. 3; I g
  • FIG. 5 is a view in section taken along the line 5-5 of FIG. 1;
  • FIG. 6 is a more detailed view of the installation of FIGS. 1 and 2 related to one of the roof support props thereof.
  • the installation depicted in the accompanying drawings has a coal face conveyor 1 of which only the part adjacent to the roadway gallery is shown.
  • a coal winning machine not shown in the drawing is moved along the conveyor 1 in the usual manner.
  • a drive station for the conveyor 1 and the associated winning machine is designated 3.
  • the mineral obtained from the coal face by the machine is transferred from the coal fact conveyor 1 to a roadway conveyor 2 extending generally perpendicularly to the conveyor 1.
  • a roadway conveyor 2 extending generally perpendicularly to the conveyor 1.
  • the roadway conveyor 2 is supported in a trough-like member 4 which can be seen more readily in FIGS. 2 and 5.
  • the conveyor 2 is not connected with the member 4 and can therefore move relative thereto.
  • Roof support props 6, 6', 11, 11' are disposed on the side of the conveyor 2 facing towards the coal face. These props 6, 6, ll, 1 l have base plates 5, 5', 10, 10' respectively.
  • the roadway gallery roof, shown in outline in FIG. 2 is supported over the transfer zone by the props 6, 6', ll, 11' and these props at the same time serve as a shifting abutment as will be described further hereinafter.
  • the trough-like member 4 On the side of the roadway conveyor 2 facing towards the coal face the trough-like member 4 is connected to the base plates 5, 5' of the set of props 6, 6' respectively.
  • the base plates 5, 5' are connected to the member 4 by pivotal joints 9, 9 so as to be pivotable in a vertical plane but rigidly secured in a horizontal plane.
  • the longitudinal axes of the base plates 5 and 5 are held perpendicular to the longitudinal axis of the roadway conveyor 2 but the base plates 5, 5' can adapt themselves to irregularities in the floor.
  • Horizontally disposed shifting rams 7, only one of which is shown diagrammatically in the drawing, can be operated to vary the transverse distance between the prop 6, 6' and the trough-like member 4, and thus the roadway conveyor 2, as depicted by the double arrow 8.
  • the set of props 11, 11' are displaceable along the trough-like member 4 in the longitudinal direction of the conveyor 2.
  • a guide beam 17 is affixed to the member 4 on the side thereof facing the coal face and this beam 17 is slidably engaged by sleeves 18 18" connected with the base plates 10 10' respectively via pivotable joints 14, 14' respectively as shown in FIG. 6.
  • the provision of the joints 14, 14' again allow the props 1 1, 1 1 to cope with any uneveness in the floor.
  • the conveyor 1 is connected to a further sleeve 18' slidably engaging the beam 17.
  • the conveyor 1 In order to ensure the necessary mobility of the conveyor 1 in relation to the sleeve 18' and the guide beam 17 the conveyor 1 is provided with a horizontal shaft 20 as shown in FIGS. 3 and 4.
  • a guide element 20 engages around the shaft 20 and allows the latter to be angularly displaced therein in a vertical swinging movement.
  • the element 20 is in turn pivotably connected to the sleeve 18' by means of a vertical pin 21 so that the element 20 can be angularly displaced in a horizontal swinging movement.
  • the conveyor 1 has a certain free movement with horizontally and vertically in relation to the sleeve 18' and hence the guide beam 17.
  • the sleeves 18, 18, 18" which are slidably displaceably along the guide beam 17 are interconnected with one another.
  • a connecting piece 24 connects the sleeve 18" to the sleeve 18', and the piece 24 is flexibly connected or articulated to the sleeves 18", 18.
  • a further connecting piece 23 connects the sleeve 18 and the sleeve 18 and the piece 23 is again flexibly connected or articulated to the sleeve.
  • the pressure medium for actuating the props 6, 6', 11 and 11' is conveyed through conduits which are disposed in protective tubes 27 extending over the conveyor 2.
  • a double-acting hydraulically operated piston and cylinder unit is mounted about the guide beam 17.
  • the cylinder of the unit 15 is affixed to the guide sleeve 18' by a joint 22 and the piston rod 16 of the unit 15 is effectively connected to the trough member 4 since it is affixed to the joint 9' between the base plate 5' of the prop 6' and the member 4.
  • a fixed side plate 31 is disposed on the side of the conveyor 2 adjacent the conveyor 1. The plate 31 is providedwith a recess over the transferring zone and the conveyor 1 engages or faces the recess.
  • side plates 32 are provided which extend longitudinally of the conveyor 2 to overlap the sections of the plate 31 at either side of the recess.
  • the side plates 32 can slide along these sections and the amount of overlap is made to correspond with the fall stroke of the unit 15.
  • the props 6 and 6', and 11 and 11' carry head pieces 12, 13 at their upper ends, as may be seen from FIG. 2 which pieces 12, 13 engage the roof.
  • the longitudinal axes of these pieces 12, 13 extend parallel to the longitudinal axis of the conveyor 2.
  • the adjacent props 6, l 1 and 6' and 11' are laterally displaced from one another in relation to the roadway conveyor 2 by a distance corresponding to the width of one of the head pieces 12, 13.
  • Each prop 6, 6, 11 11 is provided with aset of spring 30 by means of which the props are biased into a substantially upright position.
  • To enable the angle of inclination of the props 6, 6', 11 and 11' to be adapted to the roof of the props themselves are pivotable about joints 28.
  • the axes of the joints 28 are generally parallel to the longitudinal axis of the conveyor 2.
  • the angle of inclination of each of the props 6, 6', ll, 11' can be adjusted by means of a hydraulically operated piston and cylinder unit 26.
  • Each unit 26 is articulated or flexibly connected to the base plate of its associated prop at the point marked 25 and is connected to the prop via a toggle lever 29.
  • Each of the units 26 is rendered non-operative whenever the associated prop is set against the roof to avoid damaging the unit 26.
  • the props 11 and 11' are once again extended and braced in relation to the roof. This sequence may be repeated several times until the stroke of the unit 15 is exhausted. In this position the prop 11' is situated close by the prop 6', while the prop 11 has moved away from the prop 6.
  • the props 6 and 6' are released, while the props 11 and 11 remain braced.
  • the unit 15 is now fed with pressure medium in such a way that the piston rod 16 extends to push the trough member 4 and the props 6 and 6 to the right of FIG. 1.
  • the trough member 4 is thus caused to move relative to the roadway conveyor 2.
  • the installation is once again in the position shown in FIG. 1.
  • the props 6 and 6' can now once again be braced but if necessary, this takes place after correction of their transversal distance from the roadway conveyor 2 with the aid of the shifting rams 7.
  • a mineral mining installation comprising:
  • a trough member adapted to receive the roadway conveyor and movable in relation to the roadway conveyor
  • a set of roof support props disposed on the side of the roadway conveyor adjacent the mineral face conveyor and connected to said trough member for movement therewith,
  • a further set of roof support props connected to one another and to the mineral face conveyor for movement therewith, and
  • shifting means for causing relative movement between the mineral face conveyor and the troug member.
  • shifting means is in the form of a hydraulically operated piston and cylinder unit mounted about the guide beam, the cylinder of said unit being connected to the further set of props and the piston rod of said unit being connected with the trough member.
  • each prop of each set of props has a head piece for engaging the roof and the head pieces of the further set of props are displaced relative to the head pieces of the first set of props by a distance corresponding approximately to the width of each head piece.
  • each prop of the first set of props is disposed outwardly beyond the side of the roadway conveyor adjacent the mineral face conveyor in relation to the further set of props and is displacable in a direction transversely of the trough member with the aid of an associatedshifting ram.
  • each prop of each set of props is provided with means for varying the angle of inclination of the prop in relation to the horizontal.
  • each prop has resilient means adapted to bias the prop into a vertical position.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Framework For Endless Conveyors (AREA)
US45471A 1969-08-13 1970-06-11 Mineral mining installations Expired - Lifetime US3691775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1941094A DE1941094C3 (de) 1969-08-13 1969-08-13 Abspannvorrichtung eines Strebförderers in der Strecke

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US3691775A true US3691775A (en) 1972-09-19

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US45471A Expired - Lifetime US3691775A (en) 1969-08-13 1970-06-11 Mineral mining installations

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US (1) US3691775A (de)
DE (1) DE1941094C3 (de)
FR (1) FR2048607A5 (de)
GB (1) GB1239517A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872677A (en) * 1972-04-20 1975-03-25 Gewerk Eisenhuette Westfalia Mineral mining installations
US3890793A (en) * 1973-10-08 1975-06-24 Rheinstahl Ag Support advancing apparatus for mines
US4169689A (en) * 1977-03-22 1979-10-02 Gewerkschaft Eisenhutte Westfalia Tensioning a longwall mineral mining installation
US20100270131A1 (en) * 2009-04-28 2010-10-28 Joy Mm Delaware, Inc. Armored face conveyor extendable at head gate end
CN103967518A (zh) * 2014-05-15 2014-08-06 中国新型建材设计研究院 螺旋式处置溜井堵漏的方法
US9139375B2 (en) 2010-04-26 2015-09-22 Joy Mm Delaware, Inc. Chain tension sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2319966C3 (de) * 1973-04-19 1981-07-23 Maschinenfabrik Glückauf Beukenberg GmbH & Co, 4650 Gelsenkirchen Abspannvorrichtung

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872677A (en) * 1972-04-20 1975-03-25 Gewerk Eisenhuette Westfalia Mineral mining installations
US3890793A (en) * 1973-10-08 1975-06-24 Rheinstahl Ag Support advancing apparatus for mines
US4169689A (en) * 1977-03-22 1979-10-02 Gewerkschaft Eisenhutte Westfalia Tensioning a longwall mineral mining installation
US20100270131A1 (en) * 2009-04-28 2010-10-28 Joy Mm Delaware, Inc. Armored face conveyor extendable at head gate end
CN101934920A (zh) * 2009-04-28 2011-01-05 乔伊·姆·特拉华公司 可在主闸端延伸的铠装工作面输送带
US8960417B2 (en) * 2009-04-28 2015-02-24 Joy Mm Delaware, Inc. Armored face conveyor extendable at head gate end
CN101934920B (zh) * 2009-04-28 2015-11-25 乔伊·姆·特拉华公司 可在主闸端延伸的铠装工作面输送带
US9139375B2 (en) 2010-04-26 2015-09-22 Joy Mm Delaware, Inc. Chain tension sensor
US9527675B2 (en) 2010-04-26 2016-12-27 Joy Mm Delaware, Inc. Chain tension sensor
CN103967518A (zh) * 2014-05-15 2014-08-06 中国新型建材设计研究院 螺旋式处置溜井堵漏的方法
CN103967518B (zh) * 2014-05-15 2015-12-09 中国新型建材设计研究院 螺旋式处置溜井堵漏的方法

Also Published As

Publication number Publication date
FR2048607A5 (de) 1971-03-19
DE1941094B2 (de) 1978-01-19
GB1239517A (de) 1971-07-14
DE1941094C3 (de) 1978-09-14
DE1941094A1 (de) 1971-02-25

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