Spiral chute introduction:
In order to have a good separation, there should be a differencein Specific Gravity's of at least 1.0. One main benefit of spiralconcentrators is they have no moving parts. The feed range, inpercent solids, to a spiral ranges from 20% solids up to 40%solids. Depending upon the material characteristics, a maximumefficiency will usually be reached somewhere in this range. Allthat is required are some slurry pumps, the slurry to be separatedand the banks of spirals with a feed distributor.
Slurry is pumped to the top of the spiral (typically 13' to 15'from the floor), and it enters a feed distributor that evenlydistributes the feed to each spiral concentrator. The design andshape of the spiral make it work, when combined with gravitationalacceleration. As the slurry travels the spiraling path down thespiral, mineral grains settle and start sorting according to size,density and to a lesser extend shape. Low density particles arecarried with the bulk of the water towards the outside of thespiral (perimeter), while particles with the greatest densitymigrate towards the inside of the spiral.
The main technical parameters of the spiral chute:
Model | 5LL-1200 | 5LL-900 | 5LL-600 | 5LL-400 | |
Out diameter(mm) | 1200 | 900 | 600 | 400 | |
Pitch(mm) | 900,720,540 | 675,540,405 | 450,360,270 | 240,180 | |
Apart diameter to comparep/d) | 0.75,0.6,0.45 | 0.75,0.6,0.45 | 0.75,0.6,0.45 | 0.6,0.45 | |
Crosswise installments angle° | 90 | 90 | 90 | 90 | |
Each most installments spiral number | 4 | 4 | 3 | 2 | |
Ore granularity(mm) | 0.3-0.03 | 0.3-0.03 | 0.2-0.02 | 0.2-0.02 | |
Ore density% | 25-55 | 25-55 | 25-55 | 25-55 | |
Capacityt/h | 4-6 | 2-3 | 0.8-1.2 | 0.15-0.2 | |
Overall dimensions9mm) | Lengthmm | 1360 | 1060 | 700 | 460 |
widthmm | 1360 | 1060 | 700 | 460 | |
heightmm | 5230 | 4000 | 2600 | 1500 | |
Weightkg | 600 | 400 | 150 | 50 |
Spiral chute 5LL-1500
e superior to common stainless steels, such as, 316L and 317L inmost environments
Chemical Composition,%
Cr | Ni | d>td> |
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Spiral chute 5LL-1500