PL216878A1 - - Google Patents
Info
- Publication number
- PL216878A1 PL216878A1 PL21687879A PL21687879A PL216878A1 PL 216878 A1 PL216878 A1 PL 216878A1 PL 21687879 A PL21687879 A PL 21687879A PL 21687879 A PL21687879 A PL 21687879A PL 216878 A1 PL216878 A1 PL 216878A1
- Authority
- PL
- Poland
Links
Classifications
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- 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
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
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- 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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0481—Supports specially adapted for use in combination with the placing of filling-up materials
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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
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/08—Filling-up hydraulically or pneumatically
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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782829664 DE2829664A1 (en) | 1978-07-06 | 1978-07-06 | Coal mine pneumatic backfilling with advancing support - has walling moved at times and extent differing from pneumatic lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL216878A1 true PL216878A1 (en) | 1980-04-08 |
Family
ID=6043675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL21687879A PL216878A1 (en) | 1978-07-06 | 1979-07-05 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2829664A1 (en) |
| PL (1) | PL216878A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2943693C2 (en) * | 1979-10-30 | 1986-04-03 | Thyssen Industrie Ag, 4300 Essen | Device for hanging and moving a pipeline for blow offset |
| DE3627049C1 (en) * | 1986-08-09 | 1988-02-18 | Bbs Bergbau Systeme Gmbh | Pipe-rotating mechanism for pneumatic stowing lines |
| CN103362548B (en) * | 2013-07-09 | 2016-02-03 | 淮南矿业(集团)有限责任公司 | Provisions for grouting |
| CN108167017B (en) * | 2017-12-18 | 2020-05-19 | 固岩科技发展有限公司 | Metal mine cemented filling method of environment-friendly cementing material |
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1978
- 1978-07-06 DE DE19782829664 patent/DE2829664A1/en not_active Ceased
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1979
- 1979-07-05 PL PL21687879A patent/PL216878A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2829664A1 (en) | 1980-01-17 |