BE492655A - - Google Patents
Info
- Publication number
- BE492655A BE492655A BE492655DA BE492655A BE 492655 A BE492655 A BE 492655A BE 492655D A BE492655D A BE 492655DA BE 492655 A BE492655 A BE 492655A
- Authority
- BE
- Belgium
- Prior art keywords
- coal
- extraction
- scraper
- carriages
- carriage
- Prior art date
Links
- 239000003245 coal Substances 0.000 claims description 50
- 238000000605 extraction Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 230000001788 irregular Effects 0.000 claims description 2
- 238000005065 mining Methods 0.000 claims description 2
- 230000036346 tooth eruption Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 238000003307 slaughter Methods 0.000 claims 1
- 210000003462 vein Anatomy 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000120551 Heliconiinae Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000003197 gene knockdown Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009966 trimming 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
- E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
- E21C27/42—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements combined with scraper or collector box
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)
- Solid Fuels And Fuel-Associated Substances (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE492655A true BE492655A (de) |
Family
ID=136845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE492655D BE492655A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE492655A (de) |
-
0
- BE BE492655D patent/BE492655A/fr unknown
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