Study on the Air Leakage of Law and Control Technology of Main Air Door in Mine
YANG Rui-bin
WANG Hai-bin
Abstract：Aiming at the complex leakage relationship of the main air door in mine , it developed a method combined with tracer technique of SF 6 and determination of pressure energy ,in order to determine the air leak-age of law of air door between main intake airflow roadway and return air way in Tangkou mine:the total air leakage quantity of 10 major air doors is 499.11 m3/min, air leakage has positive correlation with air leakage Leeway,and calculated to determine the main damper wind resistance according to air leakage resistance law.According to the main characteristics of the air leakage of main air door , propose a treatment technology of spraying circulation material such as Polyurethane Foam and keeping tightness of doorframe.After field appli-cation ,the air leakage reduced by an average of 56.01%,air leakage at the mine main throttle has been effec-tively suppressed.
Keywords：door air leakageThe SF6 tracer techniquedetermination of pressure energyair leakage quantity
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 16-20 )