Heavy Alluvial Ore Beneficiation Solutions (Gravity + Magnetic Separation)

Heavy Alluvial Ore Beneficiation Solution, Heavy Alluvial Ore Gravity-Magnetic Separation Combined-Magnetic Separation Combined Processing Technology

This heavy sand ore beneficiation solution provides a highly efficient combined process centered on "washing-gravity-magnetic separation" for the mineral characteristics of heavy sand ores (such as ilmenite, rutile, zircon, monazite, etc.). Through multi-stage washing and desliming, graded gravity enrichment and medium-strength magnetic separation, the process realizes efficient recovery and purification of valuable minerals, and significantly reduces the investment and operation costs while ensuring high recovery rate.

I. Process Overview

Heavy sand minerals are characterized by high density and obvious magnetic difference, which are suitable for the combined process of "ore washing pretreatment - gravity enrichment - magnetic separation". This heavy sand ore beneficiation solution removes impurities through washing and screening, and gravity pre-enrichment through spiral chute and shaking table, and then separates magnetic minerals through dry or wet magnetic separation, finally obtaining high-grade concentrate. The system adopts modular design, which can flexibly adjust the flow according to the composition of minerals, and adapt to a variety of deposit types, such as seaside sands, river alluvial sands and so on.

II. Process Introduction

1. Washing and screening system

   • The raw ore is fed evenly through the silo and enters the rotary scrubber (with high-pressure water spray) to effectively remove clay, fine mud and organic impurities;

   • Optional vibrating screen is available for grading (e.g. +2mm, 2-0.5mm, -0.5mm) to improve the subsequent sorting efficiency.

2. Gravity enrichment system

   • The washed material enters the spiral chute, utilizing the mineral density difference (e.g. zircon 4.6-4.8 g/cm³, ilmenite 4.5-5.5 g/cm³) for roughing and sweeping, with a recovery rate of more than 80%;

   • The spiral chute concentrate enters the shaking table for selection, which further improves the mineral grade and effectively separates different heavy minerals.

3. Magnetic Separation System

   • The gravity separation concentrate enters the magnetic separation operation according to the difference in magnetic properties of minerals;

   • Wet or dry magnetic separator is used to separate strong magnetic minerals (e.g. ilmenite, magnetite) from weak magnetic minerals (e.g. monazite, garnet);

   • Non-magnetic products (e.g. zircon, rutile) can be used as final products or go to subsequent further sorting.

4. Drying system (optional)

   • If you need to obtain dry concentrate, you can configure rotary dryer (80-120 ℃ low-temperature drying), to avoid oxidation of minerals, flexible and adjustable processing capacity.

Third, the core equipment configuration

Fourth, the main technical indicators

• Processing capacity: 20-600 t/h (customizable)

• Concentrate grade:

  • Ilmenite: TiO₂ ≥ 48

  • Zircon: ZrO₂ ≥ 65

  • Rutile: TiO₂ ≥ 90

  • Monazite: REO ≥ 55

V. Program Advantages

• ✅ High-efficiency sorting: gravity and magnetic separation synergize, high recovery rate, adapt to a variety of heavy minerals;

• ✅ Economic investment: simple process, low investment in equipment, low operating cost;

• ✅ Flexible configuration: modular design, can adjust the process combination according to the composition of minerals;

• ✅ Green and environmental protection: no chemicals are needed throughout the process, and the washing water can be recycled to reduce wastewater discharge;

• ✅ Stable and reliable: the equipment is mature and durable, with simple maintenance and high automation.

Technical service and support

We provide one-stop heavy sand ore beneficiation solutions, including:

• 🔬 Program design: customize the process and equipment configuration according to the nature of the ore;

• 🛠️ Equipment supply: provide a full set of equipment for ore washing, gravity and magnetic separation;

• 👨‍💻 Installation and commissioning: engineers on-site to guide the installation and commissioning;

• 📚 Technical training: provide operation and maintenance training;

• 🔧 After-sales support: long-term technical advice and spare parts supply.

If you have heavy sand ore beneficiation project requirements, welcome to contact us for customized solutions and quotations. We will provide you with professional, economic and stable whole line heavy sand ore beneficiation solution that is gravity-magnetic separation combined processing process.