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The top view of the spiral chute shows that the chute selection belongs to the inclined surface flow selection process. Mortar is given to a partially inclined inclined chute or inclined surface. Under the push of water, the mineral particle group is loose and layered, and the upper layer of light minerals quickly flows out of the groove. The lower layer of heavy minerals are retained inside the groove or discharged slowly from the lower part. After receiving each, selected ore and tailings can be obtained. Fiberglass spiral chutes are equipment for mining and beneficiation, making them ideal for sand mining and beneficiation on beaches, river beds, beaches, and streams. The equipment has the characteristics of suitable structure, simple installation, small land occupation, simple operation, stable beneficiation, clear separation, strong processing capacity, high efficiency, high concentration, high recovery rate, and reliable operation. It has advantages such as light weight, moisture prevention, rust prevention, corrosion resistance, and strong adaptability to fluctuations in ore feed volume, concentration, particle size, and grade. 2、 Use a method to make the fiberglass chute stand up, align it with the vertical line, use an iron frame or wood to stabilize it in a suitable direction, and use a sand pump to send the ore sand to the top two inlet ports of the spiral. The ore sand slurry enters to increase water and adjust its density. The mineral slurry naturally swirls from top to bottom, and an inertial centrifugal force occurs in the rotating inclined flow rate, resulting in differences in gravity, particle size, and shape of the sand ore, By separating the ore from the sand through the influence of the gravity and centrifugal force of the swirling flow, the concentrate enters the beneficiation hopper and is piped out. The tailings enter the tailings hopper and are piped to the sand tank, which is then discharged by a mortar pump, completing the entire beneficiation process. Top view of spiral chute III. Special features 1. Stable sorting process and simple operation 2. Large allowable range of feed density 3. Super high enrichment ratio and high recovery rate 4. Small area occupied and low water consumption 5. Simple structure, no power required 6. Strong processing ability 7. Simple installation and easy operation 8. Low investment, quick results Top view of spiral chute 4 The structure of the spiral concentrator consists of a feeding device, a cross (tripod), a feeding chute, a spiral groove, a cutting groove, a gathering bucket, and a groove support. Top view of spiral chute V. Application field: FRP chute is suitable for separating fine iron ore, ilmenite ore, chromite ore, pyrite ore, placer tin ore, tantalum niobium ore, placer gold ore, coal mine, monazite ore, Rutile ore, zircon, rare earth ore, and has enough density ratio difference to get other metal and non-metallic minerals. Top view of spiral chute