Henan Jinyuan Mining, China National Gold Group
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Project Name: China Gold – Henan Jinyuan
Construction period: 2025
Filling capacity: 90 m³/h
Case description: Total length of the filling pipeline: 4,000 meters; elevation difference: 170 meters.
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Introduction/Results
A wholly owned subsidiary of China National Gold Group, located in Luoyang, Henan Province, it is equipped for both full‑tailings backfilling and graded tailings–cementitious aggregate backfilling with material pumping. The backfilling station operates on a 300‑day‑per‑year schedule, with two shifts per day; each shift includes eight hours of pure backfilling, resulting in 15 effective backfilling hours daily. Its actual production capacity ranges from 70 to 85 m³/h. Power supply: 10 kV high voltage and 380 V low voltage. The total length of the backfilling pipeline is 4,000 meters, with a vertical elevation difference of 170 meters.
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