CN85105216A - 改变矿床可加工性和可采掘性的方法及其设备 - Google Patents

改变矿床可加工性和可采掘性的方法及其设备 Download PDF

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Publication number
CN85105216A
CN85105216A CN85105216A CN85105216A CN85105216A CN 85105216 A CN85105216 A CN 85105216A CN 85105216 A CN85105216 A CN 85105216A CN 85105216 A CN85105216 A CN 85105216A CN 85105216 A CN85105216 A CN 85105216A
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CN
China
Prior art keywords
valve
pressure
pipeline
coal
hydraulic
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.)
Pending
Application number
CN85105216A
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English (en)
Chinese (zh)
Inventor
米罗斯劳·梅约尔
沃茨米尔·西科拉
沃西克·斯科辛斯基
茨吉蒙特·扎罗明
亨里克·吉尔
安托尼·肯德茨亚
沃西克·哈劳塔
斯塔尼萨·奥凯尔
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.)
Sent Miknisaji Gnakwa Comag
Original Assignee
Sent Miknisaji Gnakwa Comag
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 Sent Miknisaji Gnakwa Comag filed Critical Sent Miknisaji Gnakwa Comag
Publication of CN85105216A publication Critical patent/CN85105216A/zh
Pending legal-status Critical Current

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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)
CN85105216A 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 Pending CN85105216A (zh)

Applications Claiming Priority (2)

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
PLP-250843 1984-12-10

Publications (1)

Publication Number Publication Date
CN85105216A true CN85105216A (zh) 1986-05-10

Family

ID=20024436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN85105216A Pending 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

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
DE3524340C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-11-05
PL250843A1 (en) 1986-06-17
HUT45752A (en) 1988-08-29
PL146170B1 (en) 1989-01-31
DE3524340A1 (de) 1986-06-12
GB2168100B (en) 1987-11-25
GB8517814D0 (en) 1985-08-21
GB2168100A (en) 1986-06-11

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PB01 Publication
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WD01 Invention patent application deemed withdrawn after publication