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Externally Fed Rotary Drum Filter for Waste Water Pre Treatment
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Externally Fed Rotary Drum Filter for Waste Water Pre Treatment

BOEEP externally fed rotary drum filter is a waste water screening device, which is used in the pre treatment process.

Quantity:
  • ZL 350*600
  • BOEEP
  • ZL

Product Introduction of Externally Fed Rotary Drum Filter

BOEEP externally fed rotary drum filter is a kind of the pretreatment solid separating device, which is used for small and medium wastewater treatment plants. It can remove solid suspended matters continuouly and effectively. In some wastewater treatment, 30% to 60% of the suspended solid matters will be removed after the filtration, which can greatly reduce the load of the next process.

introduction of externally fed rotary drum filter

Structure of Externally Fed Rotary Drum Filter

BOEEP externally fed rotary drum filter consists of a cover, an assemble drum, a water tank, a transmission device, a flushing device, a dreg plate, a frame, and so on. When the external feed rotary drum filter works, the gear motor drives the drum screen to rotate, and the floating matters in the sewage are intercepted on the screen after filtering, and transferred to the slag plate by the rotating drum screen. At the same time, the flushing device is backwashing the screen surface. The washed grid slag slips into the garbage truck or conveyors.

structure of externally fed rotary drum filter


Working Principle of Externally Fed Rotary Drum Filter

The rotary drum screen does the rotary movement by the driving device,  and the sewage flows from the inlet pipe into the water tank, then outflows to the outlet. The solid materials are intercepted by screen, and the water is drained out into the pool from the gap of the screen. The cylinder rotates continuously, and the solid substances attached to the outer wall of the screen quickly fall down from the drum.

The backwashing system is composed of a flushing line and nozzles. The high pressure water is sprayed through the nozzle in a fan shape to sieve barrel, and the solid object attached to the sieve is flushed out quickly.The filtration is continuous and non clogged. The externally fed rotary drum screen has the characteristics of high efficiency, large throughput and fine filtration.

working principle of externally fed rotary drum filter

Technicla Parameter

Manufacturer: BOEEP Type: ZL350×600
Material :  SS304 Capacity(m3/h): 8-42
Drum diameter(mm): 350 Drum length(mm): 600
Grid gap(mm): 0.25-2.5 Power(Kw): 0.25
Motor Protect level: IP55 Motor insulation level: F level
Power supply: 380V/50Hz/3P Working time: 24 hours/day continuous run or interval run


Advantages of Externally Fed Rotary Drum Filter

  • Compact structure, small footprint.

  • Simple structure, high reliability.

  • The surface of the drum is made of wedge grid, and has excellent hydraulic characteristics.



Installation Size Figure Shape of Externally Fed Rotary Drum Filter

installation of externally fed rotary drum filter

installation of externally fed rotary drum filter


Model Data of Externally Fed Rotary Drum Filter

model data of external feed rotary drum filter


Product details of Externally Fed Rotary Drum Filter


Assemble materials

●Drum assembly: SS304

●Screw shaft: SS 2Cr13

●Support bearing seat: SS304

●Fasteners: SS304

●Drum cover: SS304

●Electric cabinet: SS304

●Motor & Reducer : SEW / NORD

Electrical Control system

The screen has the electric cabinet which can control by manual, automatic and remote control of the central control room.

● Manual control: the operation of the Drum Filter is controlled by the buttons on the control panel.

●Automatic control: the operation of the Drum Filter is controlled by the time relay.

● PLC control of the central control room: the start-stop of the Drum Filter will be controlled by the remote control through input or output the contact, and monitor the equipment.

product details of externally fed rotary drum filter

Object Site of Externally Fed Rotary Drum Filter

object site of externally fed rotary drum filter


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BOEEP has over 20 years’ professional experience as a waste water treatment equipment manufacturer and engineering service enterprise.

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