Study and practice of the controlling technique on heat-harm during the tunneling in Zhaolou mine

摘要

This paper proposes the cooling system type and cooling equipment type which are deep mine with high tem-perature during the construction,and presents auxiliary cooling measures making up duct temperature rise since com-pression and heat transfer temperature rise.The cooling system designed against Zhaolou mine' s ground temperature and weather conditions,with its sprinkler room handling an average temperature difference up to 19.5 ～ 23.8 ℃,and the average enthalpy difference could reach 48.4 ～ 60.7 kJ/kg.At the same time,it gets a series of basic data used for mine construction during the cooling system design and equipment selection according to the measured results;using the analysis software Maflab,it obtains the change relations between the temperature of sprinkler room and fan export supply air temperature,wind casing temperature rise and fan export supply air temperature,working face temperature and sup-ply air temperature,used for the mine cooling which has the similar conditions.