Spiral chute: a powerless re-concentration device, an efficient and eco-friendly mining equipment

#Industry ·2026-02-05

In today's era of increasingly depleted mineral resources and increasingly stringent environmental protection requirements, how to achieve mineral separation in a more efficient, economical, and environmentally friendly manner has become an important issue facing mining enterprises. The spiral chute, a gravity separation equipment with a long history and continuous innovation, is becoming an ideal choice for efficient, economical, and environmentally friendly separation in mining and aggregates industries with its unique advantages. 【What is a spiral chute?】 A spiral chute is a gravity separation equipment that uses the different densities, particle sizes, and shapes of mineral particles to generate layered movement under the combined effects of gravity, water flow, friction, and centrifugal force during their flow on the spiral chute surface, thereby achieving separation. It does not require any external power drive and relies solely on the gravity of the slurry (or materials) to achieve efficient sorting. 【Working principle: The wisdom of nature】 The slurry is evenly fed from the feeding hopper at the top of the chute and flows downward along the spiral chute surface. During the flow process, the heavier minerals gradually settle and move toward the inner edge of the chute under the action of centrifugal force and water shear force, while the lighter minerals move toward the outer edge with the water flow, forming a layered movement. By setting interception ports at different positions of the spiral chute, the concentrate, middle product, and tailings can be collected separately, thereby achieving sorting and enrichment purposes. 【Core advantages: Why choose a spiral chute?】 1. Power-free operation, significant energy savings: The spiral chute operates entirely on the basis of gravity potential energy, without requiring electric power drive, greatly reducing operating costs and conforming to green environmental protection concepts. 2. Simple structure and low maintenance costs: The equipment has no rotating parts and is extremely simple in structure, with a very low failure rate, making daily maintenance and repair convenient and greatly saving human and material resources. 3. High sorting efficiency and good recovery rate: It has excellent sorting effects for fine-grained minerals (especially in the range of 0.03-0.6mm), which can effectively improve the recovery rate of useful minerals and the grade of the concentrate. 4. Green and environmentally friendly, no secondary pollution: The entire sorting process mainly uses water as a medium and does not add any chemical reagents, avoiding environmental pollution, making it a truly green sorting equipment. 5. Easy operation and flexible installation: The equipment is simple to install and debug, and once adjusted, the operation is stable and reliable. It can be combined with multiple units according to the needs of the site to expand the processing capacity. 6. Small footprint and quick return on investment: The equipment is compact in design, occupies a small area, and has low initial investment costs. Combined with its high-efficiency and energy-saving characteristics, it can achieve quick return on investment. 7. Wear-resistant and corrosion-resistant, long service life: It adopts high-strength FRP or lined with wear-resistant rubber and polyurethane materials, which have excellent wear-resistant and corrosion-resistant performance, ensuring long-term stable operation of the equipment. 【Wide application: Your multi-functional sorting partner】 The spiral chute is widely used in: Heavy mineral sorting: Such as iron ore, titanium iron ore, chromite, zircon, gold, tin, tantalum and niobium ores, etc. Sand mining processing: Beach sand, river sand, and coarse sorting and fine sorting of construction sand. Other material separation: Coal sludge, industrial waste sludge, and other materials that require gravity sorting. Choosing a spiral chute is choosing a path to efficient, green, and economical sorting. Regardless of the scale of your project, the spiral chute can bring you significant economic and environmental benefits with its excellent performance. Let's join hands to create a new future for the efficient utilization of mineral resources!

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