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| Design of emergency drainage system at -200 level in Zhangcun Mine |
| An Yongye |
| Coal Industry Shijiazhuang Design and Research Institute Co., Ltd., Shijiazhuang 050051, China |
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Abstract In order to improve the waterproof and disaster-resistant ability of Zhangcun Coal Mine, this paper compares and selects the disaster-resistant methods, the area of adding submersible pump, and the setting of drainage pipeline, and finally determines to set up submersible pump chamber near the 200 horizontal pump house, and to use the φ325mm×10mm drainage pipeline of the 200 horizontal drainage system to drain to the emergency drainage scheme of the surface water treatment station of Nanfeng Mine. The emergency drainage pump is arranged in the form of horizontal pump, and two BQ550-425/5-1000/W-S type mine explosion-proof submersible pumps are selected. After the maintenance and expansion of the bottom cross near the -200 pump house, it is used as the drainage chamber of the submersible pump. The total amount of roadway engineering is 55.5 m/1 077.25 m3. Zhangcun Mine - 200 level construction submersible pump emergency drainage system engineering total investment of 16.575 million yuan.
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