FR2564532B1 - IN SITU REGENERABLE MUFFLERS FOR VENTILATORS IN VENTILATION SYSTEMS SUPPLIED WITH DUSTY AIR AND METHOD FOR IN SITU REGENERATION OF SUCH MUFFLERS. - Google Patents

IN SITU REGENERABLE MUFFLERS FOR VENTILATORS IN VENTILATION SYSTEMS SUPPLIED WITH DUSTY AIR AND METHOD FOR IN SITU REGENERATION OF SUCH MUFFLERS.

Info

Publication number
FR2564532B1
FR2564532B1 FR8407711A FR8407711A FR2564532B1 FR 2564532 B1 FR2564532 B1 FR 2564532B1 FR 8407711 A FR8407711 A FR 8407711A FR 8407711 A FR8407711 A FR 8407711A FR 2564532 B1 FR2564532 B1 FR 2564532B1
Authority
FR
France
Prior art keywords
mufflers
retaining wall
situ
external envelope
layer
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
FR8407711A
Other languages
French (fr)
Other versions
FR2564532A1 (en
Inventor
Pierre Collod
Jean-Louis Pawlak
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.)
MIDI HOUILLERES BASSIN CENTRE
Original Assignee
MIDI HOUILLERES BASSIN CENTRE
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 MIDI HOUILLERES BASSIN CENTRE filed Critical MIDI HOUILLERES BASSIN CENTRE
Priority to FR8407711A priority Critical patent/FR2564532B1/en
Priority to EP85400978A priority patent/EP0165145B1/en
Priority to DE8585400978T priority patent/DE3564469D1/en
Priority to AT85400978T priority patent/ATE36585T1/en
Priority to IN531/MAS/85A priority patent/IN165301B/en
Publication of FR2564532A1 publication Critical patent/FR2564532A1/en
Application granted granted Critical
Publication of FR2564532B1 publication Critical patent/FR2564532B1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
    • 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
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1283—Manufacturing or assembly; Connectors; Fixations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Exhaust Silencers (AREA)

Abstract

1. A fan silencer which can be regenerated in situ, for use in ventilation plats fed with dusty air comprising an external envelope (1) of a plain material, a retaining wall (10) underneath this external envelope (1), a layer (2) of a sound-absorbing substance with an external surface (9) contained by the said retaining wall (10), and a perforated internal wall (5, 6) supporting the said layer (2) of a sound-absorbing substance, characterised in that the retaining wall (10) has large passage apertures, whereas the external envelope (1) is of plain sheet metal and is radially separated from the retaining wall (10) by an interspace presenting a closed volume (3) which is either connected to a fitting (4) outside the silencer for connection to a cleansing fluid supply line or at least partially filled with a layer (14) of an insulating material lining the internal surface of the said external envelope (1), the latter comprising panels which are rendered pivoting by means of hinges (12) and can be opened so as to expose the said retaining wall (10).
FR8407711A 1984-05-18 1984-05-18 IN SITU REGENERABLE MUFFLERS FOR VENTILATORS IN VENTILATION SYSTEMS SUPPLIED WITH DUSTY AIR AND METHOD FOR IN SITU REGENERATION OF SUCH MUFFLERS. Expired FR2564532B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8407711A FR2564532B1 (en) 1984-05-18 1984-05-18 IN SITU REGENERABLE MUFFLERS FOR VENTILATORS IN VENTILATION SYSTEMS SUPPLIED WITH DUSTY AIR AND METHOD FOR IN SITU REGENERATION OF SUCH MUFFLERS.
EP85400978A EP0165145B1 (en) 1984-05-18 1985-05-17 Fan silencer which can be regenerated in situ, for use in ventilation plants fed with dusty air, and process to regenerate this silencer in situ
DE8585400978T DE3564469D1 (en) 1984-05-18 1985-05-17 Fan silencer which can be regenerated in situ, for use in ventilation plants fed with dusty air, and process to regenerate this silencer in situ
AT85400978T ATE36585T1 (en) 1984-05-18 1985-05-17 IN SITU REGENERABLE SILENCER FOR FAN IN VENTILATION SYSTEMS TRANSPORTED WITH DUST AIR, AND IN SITU REGENERATION PROCESS THEREFORE.
IN531/MAS/85A IN165301B (en) 1984-05-18 1985-07-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8407711A FR2564532B1 (en) 1984-05-18 1984-05-18 IN SITU REGENERABLE MUFFLERS FOR VENTILATORS IN VENTILATION SYSTEMS SUPPLIED WITH DUSTY AIR AND METHOD FOR IN SITU REGENERATION OF SUCH MUFFLERS.

Publications (2)

Publication Number Publication Date
FR2564532A1 FR2564532A1 (en) 1985-11-22
FR2564532B1 true FR2564532B1 (en) 1986-09-12

Family

ID=9304115

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8407711A Expired FR2564532B1 (en) 1984-05-18 1984-05-18 IN SITU REGENERABLE MUFFLERS FOR VENTILATORS IN VENTILATION SYSTEMS SUPPLIED WITH DUSTY AIR AND METHOD FOR IN SITU REGENERATION OF SUCH MUFFLERS.

Country Status (5)

Country Link
EP (1) EP0165145B1 (en)
AT (1) ATE36585T1 (en)
DE (1) DE3564469D1 (en)
FR (1) FR2564532B1 (en)
IN (1) IN165301B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8615909D0 (en) * 1986-06-30 1986-08-06 Tomac Mining Products Ltd Fan silencers
GB2256006B (en) * 1991-05-21 1995-02-22 Harbury Holdings Inc An exhaust system and a silencer therefor
AUPO910697A0 (en) * 1997-09-11 1997-10-02 Hrl Technology Pty Ltd Improved sound attenuating device
SE516302C2 (en) * 1999-03-26 2001-12-17 Paroc Group Oy Ab Silencer insert for air or gas ducts
DE102005020303A1 (en) * 2005-04-30 2006-11-09 Volkswagen Ag Hose, for use with IC engines, which produces less noise has outer sleeve enclosing foam tube, to inside of which tubular filter, e.g. of non-woven textile, is glued

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056608A (en) * 1933-12-22 1936-10-06 C F Burges Lab Inc Silencer
US2073951A (en) * 1935-12-09 1937-03-16 Servais Services Ltd Silencer for gaseous currents
DE2254159C3 (en) * 1972-11-04 1979-09-27 Ferroplast Gesellschaft Fuer Metall- Und Kunststofferzeugnisse Mbh, 4322 Sprockhoevel Silencer for duct fan in underground operation
US3949830A (en) * 1975-06-20 1976-04-13 George Koch Sons, Inc. Fan silencer
DE3111228C2 (en) * 1981-03-21 1986-07-31 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg Method and device for removing soot from the exhaust gases of an internal combustion engine

Also Published As

Publication number Publication date
EP0165145A1 (en) 1985-12-18
EP0165145B1 (en) 1988-08-17
IN165301B (en) 1989-09-16
DE3564469D1 (en) 1988-09-22
FR2564532A1 (en) 1985-11-22
ATE36585T1 (en) 1988-09-15

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Legal Events

Date Code Title Description
ST Notification of lapse