GB1307359A - Retreat face mining - Google Patents
Retreat face miningInfo
- Publication number
- GB1307359A GB1307359A GB1307359DA GB1307359A GB 1307359 A GB1307359 A GB 1307359A GB 1307359D A GB1307359D A GB 1307359DA GB 1307359 A GB1307359 A GB 1307359A
- Authority
- GB
- United Kingdom
- Prior art keywords
- unit
- workface
- frames
- rope
- roadway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005065 mining Methods 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
1307359 Endless conveyers for mining BRITISH STEEL CORP 13 May 1970 [16 April 1969] 19399/69 Heading B8A [Also in Division E1] A belt conveyer in a mine roadway 12 comprises rope side-frames 28, 30 anchored at the workface end 36 of the roadway and secured by ties 43 to a tail-end unit 38. As the workface 18 retreats, the conveyer is shortened by disconnecting the ties 43 and the unit 38 is moved to the right, Fig. 3. The mined area 20 and the adjacent portion of the roadway 12 are then allowed to collapse. In a modification, rigid side-frames are used for the conveyer and the ropes 28, 30 serve only for anchoring the unit 38. The ropes may be extended as the unit is moved or they may be abandoned and further lengths of rope be anchored at the new position of the workface. There may be a combination of rope and rigid side-frames.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1939969 | 1969-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1307359A true GB1307359A (en) | 1973-02-21 |
Family
ID=10128717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1307359D Expired GB1307359A (en) | 1969-04-16 | 1969-04-16 | Retreat face mining |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1307359A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116816411A (en) * | 2023-08-31 | 2023-09-29 | 煤炭科学研究总院有限公司 | Hydraulic support retracting device, system and method in retracting working surface |
-
1969
- 1969-04-16 GB GB1307359D patent/GB1307359A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116816411A (en) * | 2023-08-31 | 2023-09-29 | 煤炭科学研究总院有限公司 | Hydraulic support retracting device, system and method in retracting working surface |
| CN116816411B (en) * | 2023-08-31 | 2023-12-26 | 煤炭科学研究总院有限公司 | Hydraulic support retracting device, system and method in retracting working surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |