某复杂深井多区域作业通风系统的优化
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摘要
为解决某深井矿山井下作业区域风量分配不平衡、辅扇调控和管理难度大、溜井漏风等一系列通风问题,以矿山开采现状为基础,构建了6个主要通风单元。针对各通风单元存在的问题,经过对比分析,确定了1~#矿体8线以西通风单元采用-400m中段1~#回风井联络巷新增辅扇方案,马头山通风单元采用-510m中段回风井联络巷新增辅扇和-460m马头山斜坡道联络巷新增空气幕方案,并对其他主通风单元逐一进行了优化。利用Ventsim软件对优化后的矿井通风系统进行了网络解算,结果表明:优化后的矿井通风系统矿井总通风量、各单元通风量均可满足矿山实际生产通风需要。井下辅扇装机总台数由25台减少至18台,辅扇总装机功率由849kW降低至751kW,减少了井下辅扇总台数,降低了能耗。
In order to solve a series of ventilation problems,such as unbalanced air distribution,difficult regulation and management of auxiliary fans as well as the air leakage of orepass in the underground operation area of a deep mine,six main ventilation units were constructed based on the current situation of mining.In view of the problems existing in each ventilation unit,through comparative analysis,the scheme that adding auxiliary fans in connecting lane of 1~# return air shaft at -400 m level was used in the west of line 8 of 1~# orebody.The scheme of adding auxiliary fans in the connecting lane of the return air shaft at -510 mand adding air curtain in the connecting lane of slope ramp at -460 m was adopted in Matoushan ventilation unit.And the optimization on other main ventilation units was carried out one by one.Ventsim software was used to solve the network of the optimized mine ventilation system.The results showed that after optimization,the total ventilation volume and the ventilation volume of each unit can meet the actual needs of mine production ventilation.The total installed number of auxiliary fans in underground was reduced from 25 to 18,and the total installed power of auxiliary fans was reduced from 849 kW to 751 kW,which reduced the total number and energy consumption of auxiliary fans in underground.
In order to solve a series of ventilation problems,such as unbalanced air distribution,difficult regulation and management of auxiliary fans as well as the air leakage of orepass in the underground operation area of a deep mine,six main ventilation units were constructed based on the current situation of mining.In view of the problems existing in each ventilation unit,through comparative analysis,the scheme that adding auxiliary fans in connecting lane of 1~# return air shaft at -400 m level was used in the west of line 8 of 1~# orebody.The scheme of adding auxiliary fans in the connecting lane of the return air shaft at -510 mand adding air curtain in the connecting lane of slope ramp at -460 m was adopted in Matoushan ventilation unit.And the optimization on other main ventilation units was carried out one by one.Ventsim software was used to solve the network of the optimized mine ventilation system.The results showed that after optimization,the total ventilation volume and the ventilation volume of each unit can meet the actual needs of mine production ventilation.The total installed number of auxiliary fans in underground was reduced from 25 to 18,and the total installed power of auxiliary fans was reduced from 849 kW to 751 kW,which reduced the total number and energy consumption of auxiliary fans in underground.
引文
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[3]王风.基于SCADA-PLC模型的矿山通风自动监测[J].矿业研究与开发,2018,38(4):104-108.
[4]鹿广利,刘蓓蓓.通风因素对于巷道火灾热释放速率影响的数值模拟[J].矿业研究与开发,2018,38(4):82-85.
[5]盛建红,谭星宇.区域单元两翼对角混合式通风系统应用研究[J].矿业研究与开发,2018,38(2):44-47.
[6]王志.多通道复杂矿山分区通风系统优化研究[J].采矿技术,2018,18(5):67-69.
[7]聂兴信,魏小宾.金渠金矿通风系统改造方案的优选与实践[J].矿业研究与开发,2017,37(8):85-89.
[8]黄传宝,盛佳,李向东,等.基于Ventsim系统的多中段通风系统优化研究[J].采矿技术,2018,18(5):63-66+69.