窑街二矿四号井深水平调风方案优选

Ventilation Control Plan for Deep Level in No.4 Mine Shaft of Yaojie No.2 Mine

介绍了窑街二矿四号井通风现状调查结果 ,提供了主要通风机实测性能曲线和通风阻力分布等数据。在调查现状的基础上 ,结合该矿实际 ,拟定了 6个较为可行的增风方案 ,利用计算机的模拟 ,提出了较优的调风方案。

The No4 Mine Shaft of Yaojie No. Mine is a mine with an annual coal production of 03 million t and a central and boundary ventilation method. There are two sets of 4-72-11-No20 B centrifugal fens ( one for operation and the other standing by ) installed in the central ventilation shaft. The total return air quantity of the mine is 2 600 m3/min. To meet the development requirement of the mine production, the total return air quantity will need a quantity of 3600～3800 m3/min. A technical rebuilding for mine ventilation system in the existing mine should be conducted. With a investigation and analysis on the mine ventilation state, the performances of the main ventilation fan were certified, the mine ventilation resistance were measured and the mine ventilation quantity was investigated. Base on the mine conditions, 6 feasible ventilation plans were proposed with computer simulation calculations. The mine ventilation technical parameters of each plan were calculated. After the comparison between the 6 plans, an optimum feasibility plan was selected.