Submersion Type Spiral Classifier

Product Overview
Spiral classifier is an important grading equipment used in mineral processing plant with grinding mill, which is specialized in settling and grading of mineral particles. This equipment realizes the lifting and transporting of sedimentary sand through the spiral mechanism, featuring simple structure, convenient operation and high classification efficiency, and it is widely used in the pre-grading and checking grading operation in the process of metal ore dressing.

Working Principle

• Slurry classification: the slurry is fed from the side of the trough body, forming a settling and classifying surface in the lower part of the trough body.

• Separation of coarse and fine particles: coarse particles are pushed upward and discharged by the spiral blades after settling.

• Fine overflow: the unsettled fine particles are discharged with the surface slurry through the overflow weir.

• Dewatering of sedimentary sand: Dewatering of sedimentary sand is carried out simultaneously during the transportation of the spiral.

Product Advantages

🏗️ Structural advantages

• Modular design, easy to install and maintain

• Adjustable height of spiral blades, effectively preventing sand deposition.

• Tank body inclined design, easy to connect with mill autoclave

⚡ Performance Advantages

• High classification efficiency, large processing capacity

• Stable and reliable operation, easy to operate

• Multiple functions of classification, dewatering and washing.

Product Classification

📦 According to structural form

• High weir type: the overflow weir is higher than the center of the spiral shaft, suitable for coarse grains classification (>0.15mm).

• Immersion type: the spiral blade is completely submerged, suitable for fine grains classification (<0.15mm)

• Low weir type: mainly used for ore washing operation

🔢 According to the number of spirals

• Single spiral classifier

• Double Spiral Classifier

Scope of application

• ✅ Pre-classification and check classification in grinding circuits

• ✅ Washing operation of clay-containing ores

• ✅ Desliming and dewatering of slurry

• ✅ Classification operations in metal ore beneficiation plants