矿井主要风门漏风测定方法及治理技术研究

Study on the Air Leakage of Law and Control Technology of Main Air Door in Mine

针对矿井主要风门的复杂漏风关系,研究制定了SF6示踪技术与压能测定相结合的方法,确定了唐口煤矿主要进、回风巷之间风门的漏风量及影响因素:10组主要风门的总漏风量为499.11 m3/min,漏风量与漏风压差成正相关关系;并根据漏风阻力定律,计算确定了主要风门的风阻值。根据主要风门的漏风特点,研究提出了喷涂聚氨酯泡沫等堵漏材料、保持门框紧密性等治理技术,现场应用后,漏风量平均降低了56.01%,矿井主要风门处的漏风得到了有效抑制。

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.