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Document ID (ISN)30470
CIS number 78-1907
ISSN - Serial title 0342-5681 - Bergbau
Year 1978
Convention or series no.
Author(s) Düpre G., Graumann K.
Title Ventilation near road-driving machines with dust control equipment
Original title Die Bewetterung im Bereich von Streckenvortriebsmaschinen mit Entstaubungsanlagen [in German]
Bibliographic information May 1978, Vol.29, No.5, p.188-196, and June 1978, No.6, p.266-272. Illus. 11 ref.
Abstract Auxiliary ventilation measures to be taken during mechanical driving of roadways to ensure effective ventilation: ventilation of areas subject to the simultaneous, conflicting action of auxiliary ventilation and dust control systems; ventilation while the ducting is being extended; ventilation of the coal face. Coanda-effect vortex-flow ducts or supplementary mobile ducts provide a solution to the problem caused by the reduced airflow rate in the area where ventilation and dust control are operative. Air cooling is also dealt with. Formulae and diagrams are given for design of effective ventilation. Measures to control ventilation rate and methane concentrations are set out.
Descriptors (primary) driving (levels); mine ventilation; underground mining
Descriptors (secondary) Coanda effect; dust control; mathematical analysis; airflow measurement; ventilation design
Document type -
Subject(s) Heating, ventilation and climate
Broad subject area(s)
Browse category(ies) Ventilation