BE461371A - - Google Patents
Info
- Publication number
- BE461371A BE461371A BE461371DA BE461371A BE 461371 A BE461371 A BE 461371A BE 461371D A BE461371D A BE 461371DA BE 461371 A BE461371 A BE 461371A
- Authority
- BE
- Belgium
- Prior art keywords
- machine
- coal
- shear
- incision
- transverse direction
- Prior art date
Links
- 239000003245 coal Substances 0.000 claims description 14
- 230000009172 bursting Effects 0.000 claims description 5
- 238000005065 mining Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000002360 explosive Substances 0.000 description 2
- 238000003197 gene knockdown Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing 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
- E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
- E21C27/14—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by force or pressure applied to side of slit, e.g. by wedges
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
- E21C27/12—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools
- E21C27/128—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools with breaking-down members functioning on the slitting level
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 |
|---|---|
| BE461371A true BE461371A (https=) |
Family
ID=114035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE461371D BE461371A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE461371A (https=) |
-
0
- BE BE461371D patent/BE461371A/fr unknown
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