PL146170B1 - Apparatus for changing curability and mineablity of a mineral deposit - Google Patents

Apparatus for changing curability and mineablity of a mineral deposit Download PDF

Info

Publication number
PL146170B1
PL146170B1 PL25084384A PL25084384A PL146170B1 PL 146170 B1 PL146170 B1 PL 146170B1 PL 25084384 A PL25084384 A PL 25084384A PL 25084384 A PL25084384 A PL 25084384A PL 146170 B1 PL146170 B1 PL 146170B1
Authority
PL
Poland
Prior art keywords
hydraulic
valve
pressure
changing
block
Prior art date
Application number
PL25084384A
Other languages
English (en)
Polish (pl)
Other versions
PL250843A1 (en
Inventor
Wojciech Skoczynski
Antoni Kandzia
Wojciech Halota
Zygmunt Jaromin
Stanislaw Orchel
Miroslaw Major
Stanislaw Romanowicz
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
Priority to PL25084384A priority Critical patent/PL146170B1/pl
Priority to HU241985A priority patent/HUT45752A/hu
Priority to DE19853524340 priority patent/DE3524340A1/de
Priority to CN85105216A priority patent/CN85105216A/zh
Priority to GB08517814A priority patent/GB2168100B/en
Publication of PL250843A1 publication Critical patent/PL250843A1/xx
Publication of PL146170B1 publication Critical patent/PL146170B1/pl

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)
PL25084384A 1984-12-10 1984-12-10 Apparatus for changing curability and mineablity of a mineral deposit PL146170B1 (en)

Priority Applications (5)

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
HU241985A HUT45752A (en) 1984-12-10 1985-06-19 Method and apparatus for mining coal beds
DE19853524340 DE3524340A1 (de) 1984-12-10 1985-07-08 Verfahren und vorrichtung zur aenderung der schneidbarkeit und der gewinnbarkeit des floezes
CN85105216A CN85105216A (zh) 1984-12-10 1985-07-08 改变矿床可加工性和可采掘性的方法及其设备
GB08517814A GB2168100B (en) 1984-12-10 1985-07-15 Changing the machinability and workability of a coal bed, by varying the thrust applied to the roof

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 (2)

Publication Number Publication Date
PL250843A1 PL250843A1 (en) 1986-06-17
PL146170B1 true PL146170B1 (en) 1989-01-31

Family

ID=20024436

Family Applications (1)

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

Country Status (5)

Country Link
CN (1) CN85105216A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3524340A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2168100B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
HU (1) HUT45752A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
PL (1) PL146170B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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
DE2914884C2 (de) * 1979-04-12 1987-05-14 Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen Steuereinrichtung für einen hydraulischen Stempelausbau mit zugeordneter Nachsetzautomatik
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
GB2168100A (en) 1986-06-11
DE3524340C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-11-05
PL250843A1 (en) 1986-06-17
HUT45752A (en) 1988-08-29
DE3524340A1 (de) 1986-06-12
GB2168100B (en) 1987-11-25
CN85105216A (zh) 1986-05-10
GB8517814D0 (en) 1985-08-21

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