GB1364754A - Mine explosion suppression method and apparatus - Google Patents

Mine explosion suppression method and apparatus

Info

Publication number
GB1364754A
GB1364754A GB516072A GB516072A GB1364754A GB 1364754 A GB1364754 A GB 1364754A GB 516072 A GB516072 A GB 516072A GB 516072 A GB516072 A GB 516072A GB 1364754 A GB1364754 A GB 1364754A
Authority
GB
United Kingdom
Prior art keywords
zone
radiation
suppressant
tunnel
face
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
Application number
GB516072A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kidde Inc
Original Assignee
Walter Kidde and Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Walter Kidde and Co Inc filed Critical Walter Kidde and Co Inc
Publication of GB1364754A publication Critical patent/GB1364754A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0271—Detection of area conflagration fires
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • 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
    • E21F5/14—Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1364754 Mining machines WALTER KIDDE & CO Inc 3 Feb 1972 [11 Feb 1971] 5160/72 Heading E1F [Also in Division A5] Explosions in mine tunnels are suppressed by locating radiation sensor means to receive radiation from a detection zone but shielding said means from radiation from another zone nearer the tunnel face, and releasing explosion suppressant from a sealed container in response to detection of radiation by the sensor. Preferably the sensor and the suppressant container are mounted on a mobile "continuous miner" as shown in Fig. 1, in which machine 11 has cutter head assembly 13 that excavates coal from face 14 of tunnel 12. Detection units 15 with UV-responsive sensor heads 16 are mounted on the front of 11, each head having shielding masks 34, 25 (Fig. 2) to limit the radiation received to that within annular fan-shaped volume indicated by dashed lines 17, forming detection zone A comprising a lateral section of tunnel 12. Mounted on the rear of 11 are suppression units 21 operatively connected to detectors 15 and arranged to discharge suppressant in a further fan-shaped space indicated by dashed lines 22 and forming discharge zone B. Thus two obscured zones are provided, zone C ahead of 11 extending from the front surface of zone A to mine face 14, and zone D extending rearwardly of zone A, and these zones enable short duration emissions of radiation from face 14 to be ignored and flame fronts propagating down tunnel 12 detected. Fig. 3 shows suppressor unit 21 comprising cylinder 41 containing suppressant 42, e.g. CH 3 Br, and discharge tube 43 closed by frangible diaphragm 44. Cylindrical screen 45 and deflector plate 46 are mounted on the closed end of 43, and detonator assembly 47 projects into 43 adjacent diaphragm 44. 47 explodes in response to a signal on line 48, rupturing diaphragm 44 and releasing suppressant in a discharge pattern indicated by dashed lines 22.
GB516072A 1971-02-11 1972-02-03 Mine explosion suppression method and apparatus Expired GB1364754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11460871A 1971-02-11 1971-02-11

Publications (1)

Publication Number Publication Date
GB1364754A true GB1364754A (en) 1974-08-29

Family

ID=22356294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB516072A Expired GB1364754A (en) 1971-02-11 1972-02-03 Mine explosion suppression method and apparatus

Country Status (3)

Country Link
US (1) US3684021A (en)
AU (1) AU462718B2 (en)
GB (1) GB1364754A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109488366A (en) * 2018-11-06 2019-03-19 东北大学 Safe and reliable Quick rescue device and rescue mode after a kind of tunnel cave

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554577A (en) * 1976-11-22 1979-10-24 Heath R C Fire extinguishers
US5038866A (en) * 1986-11-21 1991-08-13 Santa Barbara Research Center Powder discharge apparatus
US5119877A (en) * 1990-07-19 1992-06-09 The United States Of America As Represented By The Secretary Of The Interior Explosion suppression system
US5172767A (en) * 1991-06-21 1992-12-22 Atlantic Richfield Company Water spray control system for underground mining machine
EP0787022A1 (en) * 1994-10-20 1997-08-06 Intertechnik Techn. Produktionen- Gesellschaft m.b.H. Process and device for suppressing an explosive fire, especially in hydrocarbons
US5909777A (en) * 1996-11-12 1999-06-08 Jamison Family Trust Method and apparatus for stopping the spread of a fire in an underground mine
US8833479B1 (en) 2007-06-26 2014-09-16 Pillar Innovations, LLC Fire suppression system
GEP20176632B (en) * 2015-04-24 2017-02-27 Theodore Krauthammer System safing from explosion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE547179A (en) *
US2869647A (en) * 1953-04-09 1959-01-20 Graviner Manufacturing Co Means for detecting and suppressing explosions
GB1131233A (en) * 1965-01-13 1968-10-23 Thrings Advanced Developments Improvements in or relating to automatic equipment for detecting fires
US3482637A (en) * 1967-10-20 1969-12-09 Us Interior Process and method for quenching incipient gas-air explosions
US3515217A (en) * 1967-10-23 1970-06-02 Nat Mine Service Co Method and apparatus for arresting an explosion in a mine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109488366A (en) * 2018-11-06 2019-03-19 东北大学 Safe and reliable Quick rescue device and rescue mode after a kind of tunnel cave
CN109488366B (en) * 2018-11-06 2020-08-25 东北大学 Safe and reliable rapid rescue device and rescue method after tunnel collapse

Also Published As

Publication number Publication date
AU3885072A (en) 1973-08-16
US3684021A (en) 1972-08-15
AU462718B2 (en) 1975-07-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees