Centrifuge

Centrifuges dewater sludge on a continuous process using the principle of centrifugal force. Centrifuges are becoming more popular in the aggregates industry due to their compact size relative to the production levels, their lower capital cost and their lower operating costs. They produce a dry silt cake typically ranging from 35% to 45% moisture.

The basic principle involves pumping thickened sludge into a rotating drum. Flocculent is added prior to the feed point to create strong bonds between the silt particles. The rotating drum causes the solids to settle on the drum and the water is discharged by gravity. A rotating screw conveys the dewatered solids to the discharge end of the centrifuge for stockpiling.

We work with our Italian partner, Gennaretti, who are experts in this method of dewatering. Gennaretti have built up extensive knowledge in the last 10 years of processing silts from aggregates. They are market leaders in this field due to their focus in this area and ongoing research and development program.

Features & Benefits:

  • Specifically designed to cope with abrasive slurry.
  • 5000 hours warranty of on the main wear part of the machines.
  • Compact size relative to production levels.
  • Production of a dry, manageable cake.
  • Very successful at processing silts from Recycled Aggregates, Sand & Gravel, Limestone.
  • Continuous automatic adjustment of scroll speed to maintain cake dryness and throughput
  • Touch screen PLC electric panel
  • Simple rotor pump to feed centrifuge
  • Very fast installation time
  • Highly mobile

Models:

Decanter GHT P
The scroll and the bowl drive of these machines is driven by a single electric motor operated by an inverter that enables a proportional differential speed variation. This model is suitable for processes with constant inlet characteristics and with a fixed outlet result.

Decanter GHT V
The bowl drive is given by an electric motor while the scroll is operated by a hydraulic system. The rpm speed variation is continuous and automatic and takes place in two manners: by means of adjusting a constant rotation (the drive coupling changes according to the dry solid), or a constant coupling (the rotations vary according to the dry solid value). This line is suitable when the product to be treated has variable inlet characteristics and a high dry solid outlet value is requested.

Specifications:

Model

Hydraulic Capacity

Motor Power

(Kw)

Dry Solid reject

(m³/h)

Dimensions

LxDxH (mm)

GHT 102

6

11

0.5

1575 x 690 x 1348

GHT 202

15

18.5

2

2170 x 880 x 1755

GHT 302

20

22

3

2510 x 880 x 1755

GHT 302-410

30

30

5

2510 x 880 x 1755

GHT 402

45

45

7.5

2960 x 1300 x 2000

GHT 502

60

55

12

3330 x 1300 x 2067

GHT 502-600

90

75

18

3330 x 1300 x 2067

GHT 602

200

160

35.5

4850 x 2000 x 2750

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