Chromite FRP spiral chute in Indonesia
Chromite FRP spiral chute is a combination of spiral concentrator, a device characteristic spiral chute, shaker, centrifugal concentrator, is the best equipment of mining, mineral processing, especially the waterfront, river, sand beach, Creek Road placer mining is more ideal. Products with a reasonable structure, simple installation, small footprint, simple operation, stable mineral processing, sub-ore clear, large capacity, high efficiency beneficiation enrichment ratio, high recovery rate, reliable operation characteristics. Light weight, moisture, rust, corrosion, and fluctuations in the amount of ore concentration, particle size and grade of adaptability, no noise.
Chromite FRP spiral chute is suitable for sorting size 0.3 – 0.02 mm thin material of iron ore, ilmenite, chromite, pyrite, zircon, rutile, monazite, phosphorus and B ore, tungsten ore, tin, tantalum, niobium and other non-ferrous ore proportion of differences, rare metals and non-metallic mineral body. The device has a sorting process is stable, easy to control, to allow the ore concentration range changes, enrichment ratio, high recovery rate,
Small footprint, water consumption, simple structure, without power, large capacity, easy to install, easy to operate, the advantages of investment in small and quick.
Chromite FRP spiral chute structure:
Spiral chute to the mine has a uniform, a cross (tripod), mine shafts, helical grooves, groove interception, gathering bucket, trough pillars.
Chromite FRP spiral chute to use:
The spiral chute erected, calibration vertical lines, with wood or metal frame fixed in place by sand pump the ore sent to the two feed screw top mouth, adding additional water to adjust the concentration of mineral paddle, paddle natural ore down from the high swirl to produce a centrifugal force of inertia in the rotation velocity of the ramp to the proportion of ore, particle size, shape differences, by the action of gravity and centrifugal force of the cyclone, the sand mine and separated concentrate flows into concentrate bucket pipe whip, tailings flow into the tailings pond sand bucket pipe received, then sand pump to drain away, to complete the whole process of dressing.
Work characteristics chromite FRP spiral chute is a fine interception, respectively, in the tailings at the end of the slot, and the sorting process without flushing water. Spiral groove is the main parts of the device, made of a glass sheet spiral made of steel bolted together. Spiral grooves on the inner surface coated with a wear-resistant lining, usually wear-resistant polyurethane glue or epoxy resin incorporated into an artificial diamond. While pasted spiral groove of the inner surface of the belt body powder containing diabase wear layer. At the top of the spiral grooves watched mine and mine shafts; the lower part of the product and then intercepting mine shafts. The entire apparatus set up vertically with the channel.
FRP spiral chute by the chromite ore uniform splitter, mine shafts, spiral groove, product interception slot, then six parts ore bucket and slot bracket composition. In Yantai Xinhai spiral chute, for example, by a helical spiral groove piece is composed of the main components. Spiral sheet is made of FRP (fiberglass reinforced plastic), coupled together by bolts. FRP sheet spiral light and sturdy. Its sorting Face with a layer of wear layer, durable. The first end of the slot with a multi-tube to the mine uniform Splitter, ore evenly, easy to control. Evenly divided by ore pulp orange spiral groove slowly to the surface. The end of the spiral groove is provided with valve block type product interception slot, which has been sorted according to grade ore stream into several products. By adjusting the position of the valve block to change the width of the interception of each product. Ore bucket is connected to a concentric annular cylinder, which has been taken by the multi-strand ore stream products were pooled exported.
Cross-section of chromite glass steel spiral chute cubic parabola. The slope of the curve is particularly suitable for fine particulate material sorting. Spiral chute has a simple structure, no moving parts, is easy to manufacture, light weight, configuration, installation and easy maintenance and other advantages.
FRP spiral chute chromite processing capacity is mainly determined by the diameter of the spiral chute, proportional to the square of its size and diameter. In order to increase processing capacity while Taiwan, can increase the diameter. When sorting -0.074 mm material, diameter will increase day will reduce recovery. However, if the choice of a suitable pitch, can compensate for this loss to a certain extent. Increasing the diameter increases processing power station, to reduce the difficulties ore distribution. But this does not increase the area of the ancient unit of processing power, and by doing so increase the height of the device. Therefore, in determining the diameter, please consider the above factors. -
Chromite FRP spiral chute pitch for the smooth transportation of pulp and sorting good condition, you must select the appropriate pitch. Spiral chute pitch size determines the size of the longitudinal inclination to pitch to diameter ratio represented. In sorting, when -0.074 mm material from the smaller diameter than sorting the better the effect. Therefore, under the conditions without prejudice to the smooth transportation of the pulp should be selected from a minimum diameter ratio.
Cross-sectional shape of the cross section is one of the main structural parameters of spiral chute. Selected material particle size is large, you should use a larger horizontal angle β, at this time the flow depth and velocity are larger. On the contrary, the sorting of fine materials, should apply a lateral inclination of smaller cross-section.
Spiral chute laps laps of how much the election will determine the length of the other lines. Number of turns with the nature of the material selected varies, often need to be determined through experiments. 3,5 generally appropriate circle.
Chute for pavement surfacing requirements are: (1) wear (2) formation, (3) wetting, (4) the coefficient of friction. Poor wetting can affect the flow distribution and flow of mineral particles, so the pavement to have a certain wettability. For the relationship between the friction coefficient and the effect of sorting between System not yet made.
Rinse water means no existing domestic spiral chute wash water installations. Add rinse water, to improve the sorting effect, accelerate close to the inner edge of the heavy product moving speed of sound. When sorting hematite, iron fine mineral rate as heavy product is large, often due to excessive concentration of concentrate and move slowly, add flush ice may improve this situation.
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