Achieve Solid Phase Breakage Rate of Less Than 1% in Metal Slag
The core requirements for slag separation in the hydrometallurgical industry are "solid phase integrity + thorough washing." Blovebird's PD series Plate-type Bag-lifting Centrifuge, with their "intermittent operation + flexible timing control" characteristics, have become an excellent choice for separating metal slag and rare metals.
Slag Separation Project at a Rare Metal Smelter in Yunnan Province. This plant processes tantalum-niobium ore leaching slag, requiring a solid phase breakage rate of <2% after separation, and thorough washing to remove residual acid. Previously used PD series centrifuges, due to an unreasonable unloading method, resulted in a slag breakage rate of 8% and acid residue exceeding 5%. After switching to the Blovebird PD1250 Plate-type Bag-lifting Centrifuge, a technological breakthrough was achieved:
1.Solid Phase Protection: Utilizing hanging bag unloading, the filter bags are made of high-strength polypropylene, avoiding damage to the slag caused by mechanical scrapers. The solid phase breakage rate is ultimately reduced to 0.8%.
2.Thorough Washing: Supports multiple intermittent washing sessions. The washing time (5-20 minutes) can be adjusted according to the acid residue in the slag. After three washes, the acid residue in the slag is reduced to below 0.3%.
3.Convenient Operation: The bottom unloading design reduces manual handling intensity. Single batch processing capacity reaches 500kg, a 30% increase compared to traditional equipment, and filter bag replacement takes only 10 minutes.
2.Environmental Protection and Cost Reduction: Reduced acid residue reduces alkali usage in subsequent neutralization treatment by 60%, saving 300,000 yuan in reagent costs annually, while also preventing equipment corrosion caused by acid leakage.
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