GB717136A - Improvements in the stowing of waste in mines - Google Patents
Improvements in the stowing of waste in minesInfo
- Publication number
- GB717136A GB717136A GB26073/51A GB2607351A GB717136A GB 717136 A GB717136 A GB 717136A GB 26073/51 A GB26073/51 A GB 26073/51A GB 2607351 A GB2607351 A GB 2607351A GB 717136 A GB717136 A GB 717136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- compressed air
- breech
- sleeve
- receiver
- 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
- 239000002699 waste material Substances 0.000 title 1
- 239000000463 material Substances 0.000 abstract 4
- 230000006835 compression Effects 0.000 abstract 3
- 238000007906 compression Methods 0.000 abstract 3
- 230000007423 decrease Effects 0.000 abstract 1
- 230000013011 mating Effects 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/08—Filling-up hydraulically or pneumatically
- E21F15/10—Hydraulic or pneumatic filling-up machines
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)
- Refuse Collection And Transfer (AREA)
- Screw Conveyors (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
717,136. Filling goafs. RIO TINTO CO., Ltd. Oct. 2, 1952 [Nov. 7, 1951], No. 26073/51. Class 85 [Also in Group XXX] Goafs in mines are filled by compacting material in a breech while air is being compressed in a receiver to form a charge under adequate pressure and then projecting the compacted slug of material from the breech by the rapid release of the charge of compressed air. Material is forced into the breech 1, Fig. 1, from a hopper 3 by a screw 4, the diameter of which decreases progressively towards the breech. Compressed air stored in the receiver 6 is admitted to the breech through the bell-shaped connection 7 when the valve 9 is opened. The spindle of this valve is attached to a piston 11 of smaller area than the valve 9 working in a cylinder 12 open to atmosphere. A downward extension 13 of the spindle carries a piston 14 working in a cylinder 15 connected to a compressed air supply. The screw 4 is driven by a shaft 22, Fig. 3, which is connected to a shaft 21 driven by a motor 18 by a dog clutch 19, 20. The member 20 is keyed to the shaft 22 and the member 19 is slidably mounted on splines in the shaft 21. The engaging teeth of the members slope at an angle of about forty-five degrees and the members are urged together by a strong compression spring 23. The compression of this spring is adjusted so that the members 19, 20 become disengaged completely when the screw 4 experiences a resistance corresponding to the desired compression of the material. A secondary clutch consisting of sleeves 26, 27, with only one pair of sloped mating teeth, is fitted coaxially over the members 19, 20, the sleeve 27 being secured to the member 20 and the sleeve 26 being slidably but non- rotatably mounted on the member 19. The sleeves are maintained in close contact by light springs 28. The arrangement is such that the member 19 is disengaged completely from the member 20 before the sleeve 26 commences to disengage from the sleeve 27. A flange on the sleeve 26 bears against a rod connected to a control valve 30 and moves it to admit compressed air to the cylinder 15 to open the valve 9. When the sleeves reengage, the compressed air returns the valve to the position shown. The receiver 6 contains a watertight partition 32 which does not extend to the top and surrounds the valve assembly 9, 10, 11. The space for compressed air can be reduced by running water into the outer zone of the receiver.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB26073/51A GB717136A (en) | 1951-11-07 | 1951-11-07 | Improvements in the stowing of waste in mines |
US318164A US2756111A (en) | 1951-11-07 | 1952-11-01 | Stowing of waste in mines |
DER10216A DE921622C (en) | 1951-11-07 | 1952-11-07 | Method and apparatus for blowing off offset |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB26073/51A GB717136A (en) | 1951-11-07 | 1951-11-07 | Improvements in the stowing of waste in mines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB717136A true GB717136A (en) | 1954-10-20 |
Family
ID=10237926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26073/51A Expired GB717136A (en) | 1951-11-07 | 1951-11-07 | Improvements in the stowing of waste in mines |
Country Status (3)
Country | Link |
---|---|
US (1) | US2756111A (en) |
DE (1) | DE921622C (en) |
GB (1) | GB717136A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1509403A (en) * | 1975-06-04 | 1978-05-04 | Nat Res Dev | Material conveying systems |
CN117863402B (en) * | 2023-12-07 | 2024-09-03 | 江苏嘉瑞科技有限公司 | Intelligent feeding device for granulator |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1954005A (en) * | 1934-04-10 | Plastering machine | ||
US1492352A (en) * | 1919-11-10 | 1924-04-29 | Donald J Campbell | Pneumatic sand-ramming machine |
US1882820A (en) * | 1930-10-29 | 1932-10-18 | Grain Machinery Company | Conveyer apparatus |
US2120003A (en) * | 1937-07-21 | 1938-06-07 | Goodrich Co B F | Dusting apparatus |
-
1951
- 1951-11-07 GB GB26073/51A patent/GB717136A/en not_active Expired
-
1952
- 1952-11-01 US US318164A patent/US2756111A/en not_active Expired - Lifetime
- 1952-11-07 DE DER10216A patent/DE921622C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE921622C (en) | 1954-12-23 |
US2756111A (en) | 1956-07-24 |
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