BE474765A - - Google Patents
Info
- Publication number
- BE474765A BE474765A BE474765DA BE474765A BE 474765 A BE474765 A BE 474765A BE 474765D A BE474765D A BE 474765DA BE 474765 A BE474765 A BE 474765A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- hammer
- machine
- coal
- compressed air
- Prior art date
Links
- 239000003245 coal Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 2
- 239000006096 absorbing agent Substances 0.000 claims 1
- 210000003323 beak Anatomy 0.000 claims 1
- 238000013016 damping Methods 0.000 claims 1
- JCCNYMKQOSZNPW-UHFFFAOYSA-N loratadine Chemical compound C1CN(C(=O)OCC)CCC1=C1C2=NC=CC=C2CCC2=CC(Cl)=CC=C21 JCCNYMKQOSZNPW-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 241000219098 Parthenocissus Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication 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
- E21C27/46—Mineral freed by means not involving slitting by percussed planing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/02—Machines slitting solely by one or more percussive tools moved through the seam
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)
- Percussive Tools And Related Accessories (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474765A true BE474765A (en:Method) |
Family
ID=123683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474765D BE474765A (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE474765A (en:Method) |
-
0
- BE BE474765D patent/BE474765A/fr unknown
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