Successful Procurement and Application Case of an MDP‑Type Self‑Balancing Multistage Mining Pump in Hunan Province
Industry: Mining industry
Project Address: Hunan
Pump flow rate: 85 m³/h
Pump head: 469 m
Extraction medium: Clean water
Pump model: MD85-67x7P
Pump type: Multistage pump for mining use
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Project Introduction
Successful Procurement and Application Case of an MDP‑Type Self‑Balancing Multistage Mining Pump in a Hunan‑Based Mining Company
A medium-sized metal mine in Hunan Province operates at considerable underground depths, with abundant water inflow in its roadways, and has long struggled with the unstable performance of its drainage equipment. The mine had previously relied on conventional multistage pumps that had been in service for many years, during which a series of recurring failures emerged—excessive axial thrust, excessive bearing temperatures, and mechanical seal leakage—among other issues. Moreover, the mine water contains large quantities of fine silt and sand, accelerating component wear and leading to frequent equipment breakdowns. Frequent shutdowns for maintenance not only disrupt continuous underground production but also drive up long-term maintenance costs. Consequently, the mine urgently requires replacement with specialized drainage equipment tailored to deep‑well operating conditions.
In response to the demanding operating conditions of deep wells in mining areas—characterized by high-head pumping and the need for round-the-clock, uninterrupted drainage—and to on-site circumstances where the water contains solid particles that can readily cause component wear, the project team conducted multiple rounds of product research and solution comparisons, ultimately selecting Changsha Zoomlion Pump Industry. MDP-type self-balancing multistage mining pump , the existing underground main drainage system was upgraded and renovated.
MDP self-balancing multistage pump The key highlight is its built-in self‑balancing design, which directly addresses the longstanding operational shortcomings of conventional multistage pumps. During operation, the unit autonomously counterbalances axial thrust, ensuring stable bearing temperatures and effectively mitigating risks such as high‑temperature seizure and accelerated component wear. All wetted components are manufactured from highly wear‑resistant materials, specifically engineered to handle complex mine water containing silt and sand. With outstanding wear resistance and corrosion protection, they can reliably withstand the demanding drainage conditions typical of mining operations over extended periods.
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