BE564248A - - Google Patents
Info
- Publication number
- BE564248A BE564248A BE564248DA BE564248A BE 564248 A BE564248 A BE 564248A BE 564248D A BE564248D A BE 564248DA BE 564248 A BE564248 A BE 564248A
- Authority
- BE
- Belgium
- Prior art keywords
- conveyor
- cutting
- roof
- carrying
- props
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 19
- 238000000605 extraction Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000003313 weakening effect Effects 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 210000000056 organ Anatomy 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000013590 bulk material Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000003307 slaughter Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/18—Machines which completely free the mineral from the seam by both slitting and planing
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Working Measures On Existing Buildindgs (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE564248A true BE564248A (enrdf_load_stackoverflow) |
Family
ID=185182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE564248D BE564248A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE564248A (enrdf_load_stackoverflow) |
-
0
- BE BE564248D patent/BE564248A/fr unknown
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