DE112008002215A5 - Extension frame for longwall mining in mines - Google Patents

Extension frame for longwall mining in mines Download PDF

Info

Publication number
DE112008002215A5
DE112008002215A5 DE112008002215T DE112008002215T DE112008002215A5 DE 112008002215 A5 DE112008002215 A5 DE 112008002215A5 DE 112008002215 T DE112008002215 T DE 112008002215T DE 112008002215 T DE112008002215 T DE 112008002215T DE 112008002215 A5 DE112008002215 A5 DE 112008002215A5
Authority
DE
Germany
Prior art keywords
mines
extension frame
longwall mining
longwall
mining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE112008002215T
Other languages
German (de)
Inventor
Willi Kussel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tiefenbach Control Systems GmbH
Original Assignee
Tiefenbach Control Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tiefenbach Control Systems GmbH filed Critical Tiefenbach Control Systems GmbH
Publication of DE112008002215A5 publication Critical patent/DE112008002215A5/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
DE112008002215T 2007-08-23 2008-08-16 Extension frame for longwall mining in mines Withdrawn DE112008002215A5 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007039937.7 2007-08-23
DE102007039937 2007-08-23
PCT/DE2008/001360 WO2009024136A2 (en) 2007-08-23 2008-08-16 Stope supporting structure for face support in mines

Publications (1)

Publication Number Publication Date
DE112008002215A5 true DE112008002215A5 (en) 2010-06-17

Family

ID=40378734

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112008002215T Withdrawn DE112008002215A5 (en) 2007-08-23 2008-08-16 Extension frame for longwall mining in mines

Country Status (2)

Country Link
DE (1) DE112008002215A5 (en)
WO (1) WO2009024136A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926788A (en) * 2012-11-16 2013-02-13 无锡阳工机械制造有限公司 Pressure regulation method for resistance-increasing and constant-resistance stages of hydraulic bracket
CN109707417B (en) * 2019-01-07 2020-03-13 胡连太 Supercharging device and method suitable for individual hydraulic prop of underground coal mine
CN110259491A (en) * 2019-07-04 2019-09-20 山东中煤电器有限公司 The electronic direct-push reversal valve of hydraulic support

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1400585A (en) * 1964-04-16 1965-05-28 Gullick Ltd Pressure multiplier device and its applications
GB2173241A (en) * 1984-12-17 1986-10-08 Komag Gwarectwo Mechanizacji G Hydraulic control system for a mining support
DE3626951C1 (en) * 1986-08-08 1987-09-24 Kloeckner Becorit Gmbh Pitch cylinder
DE10328286B4 (en) * 2003-06-23 2015-05-13 Caterpillar Global Mining Europe Gmbh Hydraulic shield removal

Also Published As

Publication number Publication date
WO2009024136A3 (en) 2009-06-11
WO2009024136A2 (en) 2009-02-26

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Legal Events

Date Code Title Description
R012 Request for examination validly filed
R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: E21D0015440000

Ipc: E21D0023160000

R120 Application withdrawn or ip right abandoned