为了配合8.8m超大采高综采成套装备整体搬运,采用大功率(2×55 kW)通风机配大直径风筒(直径为1 200 mm)局部通风技术解决超大断面(6.0 m×5.8 m)、单巷超长距离(5 340 m)掘进需风量大与供风难的问题.通过通风设计确定合理供风量和风压等通风参数,据此进行通风机选型.为提高通风效率,根据工作面通风和环境参数实时测定结果,以变频技术动态调整局部通风机频率和转数,使其达到最佳的工况点,并通过实施安全技术措施和风筒降阻减漏措施,满足了超大断面超长距离掘进工作面在掘进至不同长度时风量的需求,可为服务于超大型高产高效矿井、超大盘区、工作面的超长掘进工作面施工的通风配合提供借鉴.%In order to coordinate the integrated transportation of 8.8 m high cutting fully mechanized completed equipment,a high power (2×55 kW) fan local ventilation technology with large diameter ventilation duct (a diameter of 1 200 mm) was applied to solve the high ventilation volume and difficult ventilation supply problems in a super long distance (5 340 m) heading of a mine single roadway with a over large cross section (6.0 m×5.8 m).With the ventilation design,rational air supply volume,air pressure and other ventilation parameters were determined and the selection of the ventilator was conducted.In order to improve the ventilation efficiency,according to the real -time measured results of the heading face ventilation and environment parameters,the frequency conversion technology was applied to dynamically adjust the frequency and revolution of the local fan in order to reach the optimum performance point.Meanwhile with the safety technical measures and the measures to reduce the air resistance and the air leakage of the ventilation duct conducted,the ventilation volume requirements of the over large cross section and overlong distance heading face with different length heading were met and could provide the references to the ventilation coordination of the overlong distance heading face construction for the overlarge high production and high efficient mine,overlarge mining block and coal mining face.
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