六苴铜矿高温深井进风提升供电路线优化

Optimization of Power Supply Route for High-Temperature Deep Well Air Intake in Liuju Copper Mine

为解决六苴铜矿深部刀把矿段高温深井开采当中出现的三级斜井搭接开拓,进风、提升和供电线路长,新风温升高,提升耗时长,电路损耗大等问题,通过优化研究,新增了一口从地表直达深部采区的竖井,优化了开拓系统,缩短了进风、提升和供电线路长度。新风温升幅度从24.2℃降低至17.0℃,风量从103.76 m^3/s增加至176.95 m^3/s,采场气温从33.0~37.0℃降至27.8~33.0℃,主辅扇电耗从889.5 kW降至809.93 kW;人员往返时间从4 h缩短至1 h,工作时间从4 h增加至7 h;供电线路损耗比原来降低61.7%。虽然投资了1.5亿元,但是为深部价值50.87亿元的995万t矿石安全开采,创造了必要的通风、降温、提升和供电条件,取得了良好的投资效益、社会效益和经济效益。

In order to solve the problems of overlapping development of three-level inclined shafts in the deep cutting of high-temperature deep wells in the Liuju Copper Mine,the long air intake,lifting and power supply lines,the increase in fresh air temperature,the long time for lifting and the large circuit loss,etc.Through optimization,a new shaft from the surface to the deep mining area was added,the development system was optimized,and the length of the air intake,lifting and power supply lines was shortened.The temperature rise of fresh air is reduced from 24.2℃to 17.0℃,the air volume is increased from 103.76 m^3/s to 176.95 m^3/s,the temperature of the stope is reduced from^33.0~37.0℃to 27.8~33.0℃,the power consumption of the main and auxiliary fans is reduced from 889.5 kW to 809.93 kW,the personnel round-trip time is shortened from 4 hours to 1 hour,the working time is increased from 4 hours to 7 hours,and the power supply line loss ratio is reduced by 61.7%.Although 150 million yuan has been invested,the necessary ventilation,cooling,promotion and power supply conditions have been created for the safe mining of 9.95 million tons of ore worth 5.087 billion yuan,achieving good investment,social and economic benefits.