Example 1 of spiral chute production illustrates that chute sorting includes a slope flow sorting process. Mineral mortar is fed to some inclined grooves or slopes, and under the push of water, the mineral particle group becomes loose and layered. The upper layer of light mineral quickly flows out of the groove, while the lower layer of heavy mineral material stays in the groove or is discharged from the bottom at low speed. After being collected, the selected ore and tailings are obtained. Spiral chutes are mining and beneficiation machines, especially ideal for sand mining on coasts, rivers, beaches, and streams. The equipment has the characteristics of suitable structure, simple installation, small land occupation, simple operation, stable beneficiation, clear ore separation, large processing volume, high efficiency, high concentration of beneficiation, high recovery rate, and reliable operation. There are also advantages such as small weight, moisture prevention, rust prevention, less corrosion resistance, and strong adaptability to fluctuations in ore feed volume, concentration, particle size, and grade. 2、 The average working principle of the slurry passes through the head of the spiral groove and is slowly fed to the rotating groove surface for sorting. The tail of the spiral groove is equipped with a valve type equipment to obtain the groove, and the sorted products are divided into three types according to grade along the radial direction. By adjusting the orientation of the valve block to change the cutting width of each equipment, the product gathering hopper allows the selected multi-directional mineral flow to converge and lead out. The slope change of the horizontal plane and curve of the spiral concentrator is very suitable for the selection of fine particle materials. Spiral chute production example III. Special features This machine is suitable for separating small materials with a particle size of 0.3-0.02MM to obtain iron, ferrotitanium, ferrochrome, ferrosulfur, zircon, Rutile, monazite, phengite, tungsten ore, sand tin, tantalum ore, niobium ore and other colored metals, rare ore metals and non-metallic mineral bodies with gravity differences. This machine also has advantages such as stable selection steps, easy operation, wide range of allowable changes in feed density, high enrichment ratio, high recovery rate, small footprint, low water consumption, simple structure, no need for power, large processing capacity, easy installation, easy operation, low investment, and fast efficiency. Example 4 of the production of a spiral chute. The structure of a fiberglass spiral chute is composed of a feeding device, a cross (tripod), a feeding chute, a spiral groove, a receiving groove, a gathering bucket, and a groove pillar. Example 5 of spiral chute production. 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 mine, coal mine, monazite ore, Rutile ore, zircon, rare earth ore, and has enough density ratio difference to get other metal and non-metallic minerals. Spiral Chute Production Example