GB825444A - Method of purging the atmosphere of enclosed or confined spaces and for combating fires in such places - Google Patents
Method of purging the atmosphere of enclosed or confined spaces and for combating fires in such placesInfo
- Publication number
- GB825444A GB825444A GB1243155A GB1243155A GB825444A GB 825444 A GB825444 A GB 825444A GB 1243155 A GB1243155 A GB 1243155A GB 1243155 A GB1243155 A GB 1243155A GB 825444 A GB825444 A GB 825444A
- Authority
- GB
- United Kingdom
- Prior art keywords
- atmosphere
- foam
- space
- ventilating
- purging
- 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
- 238000000034 method Methods 0.000 title abstract 3
- 238000010926 purge Methods 0.000 title abstract 2
- 239000006260 foam Substances 0.000 abstract 4
- 239000000835 fiber Substances 0.000 abstract 1
- 239000004872 foam stabilizing agent Substances 0.000 abstract 1
- 230000036433 growing body Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000009736 wetting Methods 0.000 abstract 1
- 239000000080 wetting agent 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
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- 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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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)
- Ventilation (AREA)
Abstract
825,444. Ventilating mines, tunnels &c. MINISTER OF POWER. April 30, 1956 [April 29, 1955], No. 12431/55. Class 137 [Also in Group XXI] A method of purging or replacing an atmosphere in an enclosed space, such as a tunnel or underground mine roadway, comprises generating a body of foam composed of bubbles which enclose the replacement atmosphere, across substantially the whole cross sectional area of the space, and causing it to effuse into the space whereby the atmosphere therein is progressively replaced by the growing body of foam so that upon collapse of the foam the space is left filled with the replacement atmosphere. In the exemplified embodiment water supplied from a main 4 mixed with wetting and foam stabilizing agents induced from a container 5 are sprayed on to an inclined mesh screen 2 of netted natural fibre yarn erected on a frame 3 across a section of a mine roadway. The normal ventilating current flowing in the direction indicated by the arrow A continuously converts the film of liquid mixture formed on the screen 2 into bubbles which coalesce into a foam 9 which effuses along the roadway under the influence of the ventilating current. The apparatus may be incorporated in a mobile unit which may be self propelled. The air current may be produced by a blower which may be driven by a power unit which serves also to drive the spraying device and as a prime mover for the mobile unit. The invention is also applicable to a method of combating a fire in an enclosed space (see Group XXI).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1243155A GB825444A (en) | 1955-04-29 | 1955-04-29 | Method of purging the atmosphere of enclosed or confined spaces and for combating fires in such places |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1243155A GB825444A (en) | 1955-04-29 | 1955-04-29 | Method of purging the atmosphere of enclosed or confined spaces and for combating fires in such places |
Publications (1)
Publication Number | Publication Date |
---|---|
GB825444A true GB825444A (en) | 1959-12-16 |
Family
ID=10004473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1243155A Expired GB825444A (en) | 1955-04-29 | 1955-04-29 | Method of purging the atmosphere of enclosed or confined spaces and for combating fires in such places |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB825444A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3757865A (en) * | 1971-04-28 | 1973-09-11 | M Clements | Removal of gases from containers |
JPS515999Y1 (en) * | 1969-06-10 | 1976-02-18 | ||
CN104819009A (en) * | 2015-05-06 | 2015-08-05 | 四川达竹煤电(集团)有限责任公司斌郎煤矿 | Closed excavation roadway opening and high concentration hydrogen sulfide and gas treatment method |
CN108301863A (en) * | 2018-04-09 | 2018-07-20 | 贵州理工学院 | A kind of mining industry water flow jet dedusting oxygen supply device |
-
1955
- 1955-04-29 GB GB1243155A patent/GB825444A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS515999Y1 (en) * | 1969-06-10 | 1976-02-18 | ||
US3757865A (en) * | 1971-04-28 | 1973-09-11 | M Clements | Removal of gases from containers |
CN104819009A (en) * | 2015-05-06 | 2015-08-05 | 四川达竹煤电(集团)有限责任公司斌郎煤矿 | Closed excavation roadway opening and high concentration hydrogen sulfide and gas treatment method |
CN108301863A (en) * | 2018-04-09 | 2018-07-20 | 贵州理工学院 | A kind of mining industry water flow jet dedusting oxygen supply device |
CN108301863B (en) * | 2018-04-09 | 2023-04-11 | 贵州理工学院 | Water flow jet dedusting and oxygen supply device for mining |
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