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Internally Fed Drum Screen

The REKO internally fed drum screens are free-standing units used for the separation of settling solids from waste water and process water by means of an internally-fed rotating drum screen. It requires low investment and very little maintenance

 

Working principle

The essential part of the REKO internally-fed drum screen type TM is the rotating wedge wire or perforated drum as this is used as the screening surface.

The polluted liquid flows into the drum via the inlet chute and passes the drum from the inside to the outside. Separated solids are retained at the inside of the drum where they accumulate and dewater. The solids are then transported towards the discharge end of the drum by an internal spiral.

For automatic cleaning of the drum, a cleaning system with flat jet nozzles is mounted at the outside.

As the drum rotates a spray arm with flat jet nozzles cleans the entire surface. The rotating drum and the cleaning system are guarded by a hinged cover with gas-springs.

The drum itself is driven by a directly coupled motor and the drive end of the drum is supported by a self-aligning flange bearing. The discharge end of the drum is supported by two support wheels and all bearings can be lubricated simply via grease nipples at the outside of the machine. Optionally an automatic lubricating system is available.

Advantages of the REKO drum screens type TM compared to other types of internally-fed drum screens:

  • A directly coupled motor drive is installed so the drum cannot slip.
  • Driving components, such as gear wheels, chains, belts, etc. are missing which means this driving principle is very reliable and requires very little maintenance.
  • All bearings can be lubricated simply through grease nipples at the outside of the machine.
  • Maintenance and replacement of the wheels and bearings is very simple from the outside of the machine
  • All parts in contact with the raw water are completely manufactured of stainless steel.

STANDARD SPECIFICATIONS

Parameter Units TM 40/080 TM 60/120 TM 60/190 TM 80/180 TM 100/200 TM 120/240 TM 150/240
Liquid Capacity m3/hr 15 - 45 35 - 100 55 - 155 80 - 220 90 - 250 130 - 360 160 - 450
Drum
Slot Opening um 150 - 1000* 150 – 1000* 150 – 1000* 150 - 1000* 150 – 1000* 150 – 1000* 150 – 1000*
Diameter/ Length mm 400/ 800 600/ 1200 600/ 1900 800/ 1800 1000/ 2000 1200/ 2400 1500/ 2400
Internal Spiral Pitch mm 250 250 250 250 250 250 250
Inclination °C 1 - 2 1 - 2 1 - 2 1 - 2 2 2 2
Connections
Inlet (water + solids)   DN80 DN 100 DN 200 DN150 DN250 TBA DN250
Outlet (filtrate)   DN100 DN 200 DN 250 DN200 DN350 TBA DN350
Solids Discharge mm 160 * 684 160 * 870 200 * 870 250 * 1078 250 * 600 TBA  
Spray Water inch 1 1 1 1 1 1 1
Cleaning System
Spray Nozzles   4 8 12 12 16 TBA 13
Spray Angle °C 60 60 60 60 60 60 60
Water Pressure   > 5 bar > 5 bar > 5 bar > 5 bar > 5 bar > 5 bar > 5 bar
Drive Unit
Make/ Type   SEW SEW SEW SEW SEW SEW SEW

 

STANDARD SPECIFICATIONS CONTINUED

✓= Standard Supply o = Optional Supply - = Not Applicable

Power/ Voltage Kw/ V 0.25/ 499 0.37/ 400 0.37/ 400 0.55/ 400 1.1/ 400 TBA 2.2/400
Speed rpm 9.3 7.5 7.5 6.4 7.5 TBA 9.7
Protection  & Isolation Class   IP55 - F IP55 - F IP55 - F IP55 - F IP55 - F IP55 - F IP55 - F
Bearing (Drive Shaft)
Make/ Type   ANB/ MUCF 210 ANB/ MUCF 210 ANB/ MUCF 210 ANB/ MUCF 210 ANB/ MUCF 210 ANB/ MUCF 210 ANB/ MUCF 210
Description   Self-Aligning Self-Aligning Self-Aligning Self-Aligning Self-Aligning Self-Aligning Self-Aligning
Bearings   Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Materials
Drum/ Housing/ Cover   AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304
Cleaning System   AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304
Wheels   AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304 AISI 304
Bearings   Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel
Flanges   Coated Aluminium Coated Aluminium Coated Aluminium Coated Aluminium AISI 304 AISI 304 AISI 304
Weight
Net Weight  (Approx.) kg 250 300 300 350 900 TBA 1100
Operational Weight (Approx.) kg 400 450 500 600 1700 TBA 1700

 

Equipment TM 40/080 TM 60/120 TM 60/190 TM 80/180 TM 100/200 TM 120/240 TM 150/240
Skid Mounted Plant & Equipment
Epoxy Coated Carbon Steel control panel
Stainless Steel control Panel o o o o o o o
Materials Upgrade to SS316 o o o o o o o
Additional Screw Conveyor o o o o o o o
PLC Control System with HMI o o o o o o o

Disclaimer: MAK Water is continuously updating and improving its products and services, so please contact us for more detailed information or to confirm specifications. MAK Water takes no responsibility for any errors resulting from the use of information contained within this document.

 

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