Decanter Centrifuges

Decanter Centrifuges. 

The two primary types of decanter centrifuge are : Solid bowl decanters and Screen bowl decanters. 

Solid Bowl Decanter Centrifuges.

The solid bowl decanter centrifuge consists of two horizontal concentric rotating elements contained in a stationary casing. The outer rotating bowl element is tapered so that the solids discharge from a smaller radius than the liquor. The inner element is a hollow hub screw conveyor with blade tips shaped to fit closely to the contour of the bowl.

Solid bowl decanter centrifuge.600mm diameter decanter centrifuge.

Feed slurry is introduced into the conveyor hub. As the feed accelerates to the machine speed, the slurry is delivered by centrifugal force into the rotating bowl by way of ports in the conveyor hub. The solids settle through the liquor pool formed on the wall of the bowl. The solids are then conveyed, due to a slight differential between the screw conveyor and bowl, up the drying beach to the solids discharge ports. The clarified liquors are discharge in the opposite direction from adjustable overflow ports. These centrifuges are typically used on PTA, PVC, Minerals, FGD, Polyolefins, MMA, ABS – Styrene and Effluents.

• Low cake moisture – high solids removal – high centrate clarity
• For slurries 1-70% solids: particles 1 micron to > 1cm
• Solids output from 0.1 – 100T/hr dry solids
• Centrate output from 40 litres per minute to 5,000 litres per minute
• Compact – small ‘footprint’
• Materials of construction to suit the rigours of the application
• State of the art abrasion resistant materials
• User friendly advanced control technology
• Solid and Screen bowl configurations
• Bowls range from 150mm – 1400mm Diameter
• Sealed and pressure-tight construction
• Two and three phase versions
• Compliant with CE regulations
• Compliant with environmental noise regulations
• Low operating costs, low maintenance costs

Equipment Range

SIZE mm

KW

A

B

C

D

E

F

Total Weight

Rotating
Assembly

150 x 300

5/7.5

200

600

1600

1000

800

500

900kg

80kg

225 x 700

7.5/15

400

900

2000

1370

1300

700

1,200kg

500kg

450 x 700

15/30

600

1500

2200

1270

2100

975

2,200kg

850kg

450 x 1100

15/30

600

1500

2800

1900

2100

975

3,000kg

1,100kg

550 x 1375

30/60

650

1600

3000

2400

2250

1100

3,000kg

1,100kg

600 x 950

30/60

700

1700

2700

2000

2400

1200

3,500kg

1,100kg

600 x 1500

30/60

700

1700

3200

2400

2100

1200

4,725kg

1,600kg

600 x 2100

30/75

700

1700

3900

2900

2400

1200

5,500kg

1,900kg

750 x 1875

55/110

900

2100

3800

2700

3000

1300

8,000kg

3,000kg

750 x 2200

55/110

900

2100

4200

2900

3000

1300

9,000kg

3,500kg

750 x 3000

75/200

1010

1010

5800

5400

2020

1880

16,000kg

3,900kg

900 x 1800

60/120

1000

2100

4200

2900

3100

1500

11,000kg

4,000kg

900 x 2500

110/150

1000

2100

4900

3600

3100

1500

16,000kg

5,800kg

1000 x 1500

75/200

1100

2400

3900

2600

3500

1700

12,000kg

4,500kg

1200 x 2100

110/350

1200

2400

5700

3800

3600

1800

22,500kg

9,600kg

1200 x 3000

110/350

1200

2400

5900

4200

3600

1800

27,000kg

10,500kg

1200 x 3600

110/350

1200

2400

6200

4800

3600

1800

28,000kg

10,850kg

1400 x 1800

110/250

1350

2500

5000

3000

3850

1800

18,000kg

7,000kg

For more information please see our BROCHURES and TECHNICAL INFORMATION sections.

750mm diameter pressure decanter.

Screen Bowl Decanter Centrifuges. 

The screen bowl decanter centrifuge is operationally similar to the solid bowl units, but is designed to provide additional washing efficiency and enhanced moisture removal in applications where crystalline materials are involved. The decanter operates in two stages, combining the clarification and sedimentation advantages of the solid bowl centrifuge and the de-watering benefits of an additional screen section. These centrifuges are typically used on Mineral, Polyolefins and BPA.

• User friendly advanced control technology
• Screen and Solid bowl configurations
• Bowls range from 150mm – 1400mm Diameter
• Sealed and pressure-tight construction
• Two and three phase versions
• Compliant with CE regulations
• Compliant with environmental noise regulations
• Low operating costs, low maintenance costs
• Low cake moisture – high solids removal – high centrate clarity
• For slurries 1-70% solids: particles 1 micron to > 1cm
• Solids output from 0.1 – 100T/hr dry solids
• Centrate output from 40 litres per minute to 5,000 litres per minute
• Compact – small ‘footprint’
• Materials of construction to suit the rigours of the application
• State of the art abrasion resistant materials

Equipment Range

SIZE mm	KW	A	B	C	D	E	F	Total Weight	Rotating Assembly
150 x 300	5/7.5	200	600	1600	1000	800	500	900kg	80kg
225 x 700	7.5/15	400	900	2000	1370	1300	700	1,200kg	500kg
450 x 700	15/30	600	1500	2200	1270	2100	975	2,200kg	850kg
450 x 1100	15/30	600	1500	2800	1900	2100	975	3,000kg	1,100kg
550 x 1375	30/60	650	1600	3000	2400	2250	1100	3,000kg	1,100kg
600 x 950	30/60	700	1700	2700	2000	2400	1200	3,500kg	1,100kg
600 x 1500	30/60	700	1700	3200	2400	2100	1200	4,725kg	1,600kg
600 x 2100	30/75	700	1700	3900	2900	2400	1200	5,500kg	1,900kg
750 x 1875	55/110	900	2100	3800	2700	3000	1300	8,000kg	3,000kg
750 x 2200	55/110	900	2100	4200	2900	3000	1300	9,000kg	3,500kg
900 x 1800	60/120	1000	2100	4200	2900	3100	1500	11,000kg	4,000kg
900 x 2500	110/150	1000	2100	4900	3600	3100	1500	16,000kg	5,800kg
1000 x 1500	75/200	1100	2400	3900	2600	3500	1700	12,000kg	4,500kg
1200 x 2100	110/350	1200	2400	5700	3800	3600	1800	22,500kg	9,600kg
1200 x 3000	110/350	1200	2400	5900	4200	3600	1800	27,000kg	10,500kg
1200 x 3600	110/350	1200	2400	6200	4800	3600	1800	28,000kg	10,850kg
1400 x 1800	110/250	1350	2500	5000	3000	3850	1800	18,000kg	7,000kg

For more information please see our BROCHURES and TECHNICAL INFORMATION sections.