DLM/KA
Sewage Sludge Inline Mixer
Efficient mixing of polymer solution into sewage sludge
INDAG Sewage Sludge Inline Mixers type DLM/KA are used for effective mixing of polymer solution into sewage sludge. The aim is a more efficient sludge dewatering than for example with comb filter presses or belt presses. This is achieved by creating a large stable floc in the sewage sludge. The use of a dynamic inline mixer is always suitable for this purpose if the dewatering machine does not operate dynamically but rather statically. The mixing volume in the long axial mixer housing is sufficiently large to ensure a long dwell time and therefore mixing time.
Advantages of DLM/KA
- No pressure loss
- No blockage
- Entwining (clog) free
- Homogeneous mixing result
- Mixing energy can be changed variable and adapted to product or capacity changes
- Higher DS-values of dewatered sewage sludge
- Lower polymer consumption
Technology of DLM/KA
INDAG mixer type DLM/KA has shark fin form mixing elements on rotor and no mixing elements in stator (mixer casing). This geometry allows effective introduction of mixing energy and prevents blockages. Rotor of mixer is supported by drive shaft of motor. INDAG DLM/KA is equipped with a double acting mechanical seal. Mixer is available in two pressure ratings. Execution 6 bar for pressure loss belt filter press and 16 bar for filter press.
Positioning
horizontal or vertical position of mixer is possible
Pressure levels
6 bar, 16 bar
Materials
1.4301 (AISI 304), 1.4404 (AISI 316L)
Seals
Single acting mechanical seal, double acting mechanical seal
Connections
Flange DIN 2633, ANSI ‚ #300
Rotational speed
1450 rpm
Capacities
20 m3/h to 250 m3/h
Mixer sizes and capacities of DLM/KA
| Type | Unit | DLM/K-0 | DLM/KA-1 | DLM/KA-2 | DLM/KA-3 | DLM/KA-4 |
| max. capacity | m3/h | 20 | 60 | 120 | 250 | |
| sludge connection | mm | 65 | 80 | 150 | 200 | |
| polymer connection | mm | 25 | 25 | 40 | 50 | |
| power (16 bar) | kW | 4 | 4 | 5,5 | 7,5 | |
| power (6 bar) | kW | 1,1 | 1,5 | 2,2 | 4,0 | |
| rotational speed (50 Hz) | 1/min | 300 - 1,500 | 300 - 1,500 | 300 - 1,500 | 200 - 1,000 |
Dimension drawing of DLM/KA (6 bar)
| Type | Unit | L | H1 | A | H2 |
| DLM/KA-0 | mm | ||||
| DLM/KA-1 | mm | 802 | 90 | 230 | 136 |
| DLM/KA-2 | mm | 991 | 115 | 315 | 157 |
| DLM/KA-3 | mm | 1184 | 132 | 385 | 198 |
| DLM/KA-4 | mm | 1575 | 203 | 570 | 286 |
