GB1424988A - Method and apparatus for extracting dust - Google Patents

Method and apparatus for extracting dust

Info

Publication number
GB1424988A
GB1424988A GB2286374A GB2286374A GB1424988A GB 1424988 A GB1424988 A GB 1424988A GB 2286374 A GB2286374 A GB 2286374A GB 2286374 A GB2286374 A GB 2286374A GB 1424988 A GB1424988 A GB 1424988A
Authority
GB
United Kingdom
Prior art keywords
air
dust
boundary surface
produced
coal 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
GB2286374A
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB1424988A publication Critical patent/GB1424988A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/22—Equipment for preventing the formation of, or for removal of, dust
    • E21C35/223—Equipment associated with mining machines for sucking dust-laden air from the cutting area, with or without cleaning of the air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Arc Welding In General (AREA)
  • Ventilation (AREA)
  • Prevention Of Fouling (AREA)

Abstract

1424988 Confining and removing dust in industrial processes BERGWERKSVERBAND GmbH 22 May 1974 [29 June 1973] 22863/74 Heading F4X Dust generated, e.g. at a coal face 70 by a coal cutting device 2, is confined within air curtain consisting of curved air strata 5 produced by the Coanda effect upon an air stream discharging from a slit 40 with a convex inner boundary surface 41 and an acutely converging outer boundary surface 42. The dust laden air within the air curtain is discharged via apertures 30 into an exhaust duct 3 leading to a dust precipitator (not shown) from which the cleaned air is returned to the fresh air stream near the coal face. The boundary surface 41 may comprise individual curved members of differing radius enabling the nature of the air streams 5 to be produced in accordance with local conditions. The curvature of the air streams can also be changed if required by adjustment of a so-called rupturing edge 43.
GB2286374A 1973-06-29 1974-05-22 Method and apparatus for extracting dust Expired GB1424988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732333108 DE2333108C3 (en) 1973-06-29 1973-06-29 Process for dust extraction on mining or tunneling machines using an air curtain and associated device

Publications (1)

Publication Number Publication Date
GB1424988A true GB1424988A (en) 1976-02-11

Family

ID=5885454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2286374A Expired GB1424988A (en) 1973-06-29 1974-05-22 Method and apparatus for extracting dust

Country Status (3)

Country Link
DE (1) DE2333108C3 (en)
FR (1) FR2235265B3 (en)
GB (1) GB1424988A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2500672A (en) * 2012-03-29 2013-10-02 Howorth Air Technology Ltd Clean air apparatus
CN109162752A (en) * 2018-11-06 2019-01-08 中煤科工集团重庆研究院有限公司 Frame moving, dust closing and dust guiding device for coal mine large mining height fully-mechanized mining working face

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2935641A1 (en) * 1979-09-04 1981-03-19 Ing.(grad.) Heinz 4390 Gladbeck Hölter Mine gallery to working transition dust screen - involves sliding cap functioning as compressed air chamber with barrier
GB2107757B (en) * 1981-10-13 1985-04-17 Coal Ind Rotary cutter heads for mining machines
GB2133435B (en) * 1983-01-11 1985-11-13 Coal Ind Rotary cutter heads for mineral mining machines
AT404284B (en) * 1994-03-15 1998-10-27 Voest Alpine Bergtechnik DRY DEDUSTERS
DE102006017673B4 (en) * 2005-05-27 2015-10-15 Cft Gmbh Compact Filter Technic Plant for the ventilation of track drives with tunneling machine
CN102562064B (en) * 2010-12-20 2014-06-25 河南理工大学 Dust isolation and collection method for fully mechanized excavation face
CN111700759B (en) * 2020-06-24 2021-04-09 中南大学 Oxygen enrichment device and method for high-altitude mine driving face

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2500672A (en) * 2012-03-29 2013-10-02 Howorth Air Technology Ltd Clean air apparatus
GB2500672B (en) * 2012-03-29 2016-08-24 Howorth Air Tech Ltd Clean air apparatus
AU2013239517B2 (en) * 2012-03-29 2017-03-02 Howorth Air Technology Limited Clean air supply for operating table
US10962246B2 (en) 2012-03-29 2021-03-30 Howorth Air Technology Limited Clean air apparatus and method for discharging clean air towards a target clean area in the form of an air curtain
CN109162752A (en) * 2018-11-06 2019-01-08 中煤科工集团重庆研究院有限公司 Frame moving, dust closing and dust guiding device for coal mine large mining height fully-mechanized mining working face

Also Published As

Publication number Publication date
DE2333108B2 (en) 1978-04-27
DE2333108C3 (en) 1978-12-21
DE2333108A1 (en) 1975-01-16
FR2235265A1 (en) 1975-01-24
FR2235265B3 (en) 1977-03-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee