BE489148A - - Google Patents
Info
- Publication number
- BE489148A BE489148A BE489148DA BE489148A BE 489148 A BE489148 A BE 489148A BE 489148D A BE489148D A BE 489148DA BE 489148 A BE489148 A BE 489148A
- Authority
- BE
- Belgium
- Prior art keywords
- frame
- cylinder
- advancement
- hammer
- coal
- Prior art date
Links
- 239000003245 coal Substances 0.000 claims description 16
- 238000005422 blasting Methods 0.000 claims description 5
- 230000003245 working effect Effects 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000284 resting effect Effects 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
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/28—Mineral freed by means not involving slitting by percussive drills with breaking-down means, e.g. wedge-shaped tools
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)
- Shovels (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE489148A true BE489148A (de) |
Family
ID=134172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE489148D BE489148A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE489148A (de) |
-
0
- BE BE489148D patent/BE489148A/fr unknown
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