Wet classification is the art of solid liquid seperators,
separating the solid particles in a mixture of solids and liquids into
fractions according to particle size or density by methods other than
screening. The classifying operation is carried out in a pool of fluid pulp
confined in a tank arranged to allow the coarse solids to settle out,
whereupon they are removed by mechanical means. Solids that do not settle
report as overflow from the pool. Upgradation of 2 to 3% is achieved
improving qualities of end product.
Design Features of DMP Spiral Classifier
Spiral Diameter
 |
DMP has wide range of
Spiral diameters to establish a correct balance between overflow and
Raking capacity. Std. Range: 24", 30", 48", 66" &
72". |
| Spiral
Configuration |
DMP Classifiers are provided with
Triple start spirals giving maximum agitation and greater raking
capacity. Main advantage being slow operating speed giving close
separation and high raking. |
| Adjustable
Spiral Speed |
Rotational speed of spiral can be
varied eighter by using change of pulleys which is simplest of the kind
or eddy current drive or by variable frequency drive. |
| Tank
Design |
DMP can provide straight tanks as
well as fully flared designs depending upon size of separation. |
| Lifting
Device |
Lifting and lowering of Spiral
Assembly by means of hydraulic cylinder operated by power pack for
smooth starting with latest radial piston pump. |
| Flights
& Wear shoes |
Flight arms of Cast Steel with
sectionalized flights and Flights Arms for easy replacements and wear
shoes with chromium addition for high wear resistance with assure
interchangeability. |
| Lower
Bearing Assembly |
DMP lower bearing assembly assures
long trouble free operation. Designed to be grit free while in a
submerged position in pool. |
| Drive |
Through bevel gear & pinion or
planetary gear box coupled with motor. |
DMP Spiral Classifier Size Range
| Size Range |
Throughput Cap |
Raking Cap |
| 30" x 6 to 10 mtrs.
Long |
80 TPH |
50 TPH |
| 48" x 6 to 10 mtrs.
Long |
150 TPH |
80 TPH |
| 66" x 10 to 12 mtrs.
Long |
250 TPH |
180 TPH |
| 72" x 10 to 12 mtrs.
Long |
300 TPH |
200 TPH |
| 54" x 10 to 12 mtrs.
Long |
200 TPH |
150 TPH |