Spiral chute applies to sorting size 0.3 -0.02 mm fine-grained iron, tin, tungsten, tantalum, niobium, gold, coal, monazite, rutile, zircon, and other metals and non-metallic minerals that has enough gravity.
Ore-distributor is placed freely on the cross (tripod) of the support table, uniform slurry is fed slowly to the spiral groove surface through the bunker mounted to the first end of spiral groove for sorting. The end of the spiral groove has valve product-interception trough which separate products along radial direction by grade into three (or four kinds). By adjusting the position of the valve, can change the interception width of each kind. Product gathering unit is a concentric annular cylindrical bucket that gathers and respectively exports multipoint ore flows which have been pooled. Spiral chute cross slope, the curve changes, especially suitable for fine particulate material sorting. This processing equipment has advantages as simple structure, no moving parts, light weight, no noise, configured installation and easy maintenance.
FRP spiral chute is formed by six parts, ore-distributor, bunker, helical groove, product interception trough, product gathering bucket, tank bracket (including crosses or tripod) and etc. The helical groove which is connected by the spiral sheet is the main part. Spiral sheet is made of glass steel (glass fiber reinforced plastics), bolted together, sorting face of spiral groove has a layer of preformed surface which is wearing layer. The processing equipment is featured by light, strong and durable. The top has a multi-tube ore-distributor, can uniformly distribute ore, easy to control.
900 ,720 , 540
675 , 540 , 405
450 , 360 , 270
240 , 180
screw pitch /dia.
0,75 , 0.6 , 0.45
0.75 , 0.6 , 0.45
0.75 , 0.6 , 0.45
0.6 , 0.45
lateral dip angle (degree)
Max. spiral head no. for each machine
Feed size (mm)
Feed density (%)
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