Reformed full-size tailings backfill slurry preparation system and method for conventional vertical sand bins
By modifying conventional vertical sand bins and introducing dilution flocculation sedimentation modules and multi-layer, multi-angle slurry nozzle designs, the problem of unusable tailings of all particle sizes was solved, achieving efficient filling and low-cost utilization of tailings of all particle sizes, thus improving filling efficiency and system reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN RES INST FOR NONFERROUS METALS CO LTD
- Filing Date
- 2026-03-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing conventional vertical sand bins cannot effectively handle tailings of all particle sizes, resulting in the inability to utilize fine-particle tailings, which affects the safety and filling efficiency of tailings ponds. Furthermore, the cost of modification is high and the process is complex, making it difficult to meet the filling needs of mines.
By modifying conventional vertical sand bins and introducing dilution, flocculation, and sedimentation modules and slurry making and sand discharging modules, the dilution, flocculation, and sedimentation modules are used to dilute and flocculate tailings of all particle sizes. Combined with the multi-layer, multi-angle slurry nozzle design, uniform sedimentation and efficient slurry making of tailings of all particle sizes are achieved, avoiding the use of hydrocyclone classification and deep cone thickeners.
It enables the direct utilization of tailings of all particle sizes, improves filling efficiency, extends the time interval for cleaning sand bins, reduces modification costs, ensures continuous production, and the system modification difficulty and cost are lower than adding a deep cone thickener.
Smart Images
Figure CN122399404A_ABST