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Cascade-gravity classifiers are applied to separate coarse-dispersed materials into the pre-assigned fractions in the size-range between 0,16 up to 5,0 mm. The separation of material is accounted for by the in-teraction of gravitational forces field and the air flow. There has been realized a cascade system of separation in the design of the machine when the process of classification has many times repeating nature which makes possible a high precision of separation to be gained. The advantages of cascade-gravity classifiers comparing to those of traditional sieves are in the absence of expensive wearing close-meshed sieves and vibration mechanisms at separation.
They make it possible to separate wastes of crushing into two, three and more fractions (see the Table). As a result building materials are ob-tained such as small-size cubiform crushed rock, building sands of speci-fied fineness modulus, fine fillers for concretes and asphalts, filter and abrasive powders, etc.
Long-term running of SPA “Center” air cascade-gravity classifiers demonstrated their high effectiveness, reliability, simplicity in mainte-nance and a possibility to control fractional composition in a wide size-range without stopping the production.
Classifiers can be applied both independently and together with crushing and sorting lines which is more promising and makes it possible to provide non-waste production.
Technical properties of some classifiers
Description | Value | ||||
Model | КГ-2.001 | КГ-3.006 | КГ-3.008 | КГ-3.009 | КГ-4.001 |
The number of separation products | 2 | 3 | 3 | 3 | 4 |
Capacity as to charge, t/h | 40 | 35 | 30 | 6 | 2,5 |
The size of separation prod-ucts (can be regulated), mm | 5-1,5 0-1,5 | 5-2 2-0,63 0-0,63 | 5-2 2-0,16 0-0,16 | 5-1,2 1,2-0,2 0-0,2 | 10-2 2-1,2 1,5-0,5 0-0,5 |
Hydraulic pressure, kPa | 2,5 | 2,0 | 1,5 | 1,5 | 2 |
Overall dimen-sions, m length x width x height |
2,5х1,8х6,4 |
2,2х2,0х7,0 |
2,4х2,2х7,0 |
2,2х1,1х6,2 |
1,3х0,7х3,7 |
Mass, t | 1,5 | 2,3 | 2,5 | 1,2 | 0,8 |
19.05.2012