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| Ventilation System Optimization Reformation in Old Mine Post-production |
| LI Rong-qiang，SUN Jun-lin |
| Tongshun Mine, Fengfeng Mining Industry Group Corporation Ltd., Jizhong Energy, Handan 056201 , China |
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Abstract The production tail ventilation system state of Tongshun mine was analyzed according to the ageing mine production and ventilation actual work. The thesis raised a targeted rehabilitation program and ventilation system and implemented to achieve the mine ventilation system stable , reasonable, reliable to meet the mine ventilation work post-production needs and energy saving.
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