DE250704C - - Google Patents
Info
- Publication number
- DE250704C DE250704C DENDAT250704D DE250704DA DE250704C DE 250704 C DE250704 C DE 250704C DE NDAT250704 D DENDAT250704 D DE NDAT250704D DE 250704D A DE250704D A DE 250704DA DE 250704 C DE250704 C DE 250704C
- Authority
- DE
- Germany
- Prior art keywords
- mine
- depression
- degassing
- enrichment
- stronger
- 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.)
- Active
Links
- 239000007789 gas Substances 0.000 claims 2
- 238000007872 degassing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
Classifications
-
- 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
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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)
- Oxygen, Ozone, And Oxides In General (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE250704C true DE250704C (xx) |
Family
ID=509208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT250704D Active DE250704C (xx) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE250704C (xx) |
-
0
- DE DENDAT250704D patent/DE250704C/de active Active
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