HUT45752A - Method and apparatus for mining coal beds - Google Patents

Method and apparatus for mining coal beds

Info

Publication number
HUT45752A
HUT45752A HU241985A HU241985A HUT45752A HU T45752 A HUT45752 A HU T45752A HU 241985 A HU241985 A HU 241985A HU 241985 A HU241985 A HU 241985A HU T45752 A HUT45752 A HU T45752A
Authority
HU
Hungary
Prior art keywords
mining coal
coal beds
beds
mining
coal
Prior art date
Application number
HU241985A
Other languages
English (en)
Hungarian (hu)
Inventor
Miroslaw Major
Wlodzimierz Sikora
Wojciech Skoczynski
Zygmunt Jaromin
Henryk Gil
Antoni Kandzia
Wojciech Halota
Stanislaw Orchel
Original Assignee
Ct Kt Maszyn Gorniczych Komag
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 Ct Kt Maszyn Gorniczych Komag filed Critical Ct Kt Maszyn Gorniczych Komag
Publication of HUT45752A publication Critical patent/HUT45752A/hu

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
    • E21D23/26—Hydraulic or pneumatic control

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)
  • Fluid-Pressure Circuits (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
HU241985A 1984-12-10 1985-06-19 Method and apparatus for mining coal beds HUT45752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25084384A PL146170B1 (en) 1984-12-10 1984-12-10 Apparatus for changing curability and mineablity of a mineral deposit

Publications (1)

Publication Number Publication Date
HUT45752A true HUT45752A (en) 1988-08-29

Family

ID=20024436

Family Applications (1)

Application Number Title Priority Date Filing Date
HU241985A HUT45752A (en) 1984-12-10 1985-06-19 Method and apparatus for mining coal beds

Country Status (5)

Country Link
CN (1) CN85105216A (pl)
DE (1) DE3524340A1 (pl)
GB (1) GB2168100B (pl)
HU (1) HUT45752A (pl)
PL (1) PL146170B1 (pl)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB912364A (en) * 1958-06-05 1962-12-05 N J Muschamp & Company Ltd Improved hydraulic means for the fluid pressurisation of hydraulically operable components
GB980001A (en) * 1960-08-24 1965-01-13 Dobson Ltd W E & F Improvements in or relating to mine roof supporting means
GB1593832A (en) * 1978-01-17 1981-07-22 Gullick Dobson Ltd Mine roof support control
DE2830510C3 (de) * 1978-07-12 1981-07-23 Bergwerksverband Gmbh, 4300 Essen Verfahren und Ventilanordnung zum Setzen der Stempel eines Schreitausbaus
GB2042035B (en) * 1979-02-06 1983-05-05 Fletcher Sutcliffe Wild Ltd Prop control system
DE2914884A1 (de) * 1979-04-12 1980-10-30 Gewerk Eisenhuette Westfalia Einrichtung zum setzen hydraulischer grubenstempel mit hoher und gleichmaessiger setzkraft
GB2115047B (en) * 1982-02-03 1985-06-19 Dowty Mining Equipment Ltd Mine roof support system
GB2116618B (en) * 1982-03-06 1985-11-20 Dowty Mining Equipment Ltd Mine roof supports

Also Published As

Publication number Publication date
PL250843A1 (en) 1986-06-17
DE3524340C2 (pl) 1987-11-05
PL146170B1 (en) 1989-01-31
DE3524340A1 (de) 1986-06-12
GB8517814D0 (en) 1985-08-21
GB2168100B (en) 1987-11-25
CN85105216A (zh) 1986-05-10
GB2168100A (en) 1986-06-11

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