良山铁矿溜破系统多中段通风研究及应用

Research and Application of Multi-middle Section Ventilation of Liangshan Iron Mine's Slip-through System

良山铁矿溜破系统通过1台局扇控制多中段通风,通风管理难度较大,溜破系统通风存在总风量不足、风量不均衡、污风循环等问题。通过核算溜破系统需风量,基于溜破系统多中段联合按需通风技术,利用辅、局扇联合通风及通风构筑物辅助管理,优化溜破系统通风线路及机站设置;最后采用三维仿真模拟系统对技术方案进行模拟解算,验证技术方案的可行性。方案实施后进行检测表明,溜破系统各中段风量分配均衡,解决了小区域大风量现象,提高了有效风量率,保证了溜破系统多中段通风稳定性。

Liangshan Iron Mine's slip-through system uses one local fan to control the ventilation of multiple mid-sections,which makes ventilation management difficult.The slip-through system has prob⁃lems such as insufficient total air volume,unbalanced air volume,and polluted air circulation.By calculat⁃ing the required air volume of the slip-through system,based on the multi-middle section combined on demand ventilation technology of the slip-through system,the auxiliary and local fan combined ventilation and the auxiliary management of the ventilation structure are used to optimize the ventilation line and sta⁃tion setting of the slip-through system.Finally,a three-dimensional simulation system is used to simulate and solve the technical scheme to verify the feasibility of the technical scheme.The test after the implemen⁃tation of the plan shows that the air volume distribution of each middle section of the slip-breaking system is balanced,which solves the phenomenon of large air volume in small areas,improves the effective air vol⁃ume rate,and ensures the ventilation stability of the multi-middle section of the slip-breaking system.