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External Rotary Drum Screen for Primary Treatment of Wastewater Screening
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External Rotary Drum Screen for Primary Treatment of Wastewater Screening

BOEEP external type rotary drum screen is a externally fed device which is used for primary treatment of wastewater screening.
Availability:
Quantity:
  • ZL 610*1220

  • BOEEP

  • ZL

Product Introduction of External Rotary Drum Screen

BOEEP external rotary drum screen is a primary solid liquid separating machine. It is used for small and medium wastewater treatment plants, which can continuouly and effectively remove solid suspended matters, like dregs or slags. In some wastewater treatment, 30% to 60% of the organic or inorganic suspended matters will be removed after the filtration, which can greatly reduce the load of the post process.

structure of external rotary drum screen


Structure of External Rotary Drum Screen

BOEEP external rotary drum screen consists of an assemble drum, a cover, a filtrate tank, a transmission device, a flushing device, a dregs scrape, a frame, etc. When the external rotary drum screen starts its filtration work, the gear motor drives the drum screen to rotate, and the floating solids in the wastwater are intercepted on the screen after filtering, and transferred to the slag scrape by the rotating drum screen. At the same time, the flushing device is used to backwash the screen surface. The washed grid slag slips into the garbage truck or conveyors.

structure of external rotary drum screen

Working Principle of External Rotary Drum Screen

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

The backwashing system is composed of a flushing line and nozzles. The high pressure water is sprayed through the nozzles, and the solid objects attached to the sieve is flushed out quickly.The filtration is continuous and non clogged. The external rotary drum screen has the characteristics of high efficiency, large throughput and fine filtration.

working principle of external rotary drum screen    working principle of external rotary drum screen


Advantages of External Rotary Drum Screen

  • Compact structure, small footprint.

  • Simple structure, high reliability.

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


advantages of external rotary drum screen


Technicla Parameter of External Rotary Drum Screen

Manufacturer: BOEEP Type: ZL610×1220
Material :  SS304 Capacity(m3/h): 65-340
Drum diameter(mm): 610 Drum length(mm): 1220
Grid gap(mm): 0.25-2.5 Power(Kw): 0.75
Motor Protect level: IP55 Motor insulation level: F level
Power supply: 380V/50Hz/3P Working time: 24 hours/day continuous run or interval run


Installation Size Figure Shape of External Rotary Drum Screen

installation of external rotary drum screen

installation of external rotary drum screen


Model Data of External Rotary Drum Screen

model data of external rotary drum screen


Product details of External Rotary Drum Screen


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 external rotary drum screen


Workshop of External Rotary Drum Screen

workshop of external rotary drum screen


Object site of External Rotary Drum Screen

object site of external rotary drum screen


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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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