Rotary Drum Screen OA9

OA9 Micro Strainer

Rotary Drum Screen

Filter gap 3~5 mm

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OA9 Micro Strainer

Introduction

Rotary Drum Screen OA9 Micro Strainer is one of the complete equipment products for water supply and drainage pretreatment. For small and medium flow sewage filtration

Equipped with built-in sieve crushing and washing
Can be installed in canals and cabinets
Optional configuration for outdoor installation (heating insulation style)

Equipped with built-in sieve crushing and washing

Can be installed in
canals and cabinets

Optional configuration for outdoor installation

Fully enclosed
No odour overflow

Low investment costs

All stainless steel

long service life

Technical Advantages

Low investment costs
Reliable self-cleaning with sturdy spirals and wear-resistant brushes
Fully enclosed, no odour overflow
Set filter residues to flush and dewater, reducing subsequent disposal costs of filter residues

Quick and easy installation,also suitable for project reconstruction
All stainless steel, long service life, no maintenance required
Optional configuration for outdoor installation (heating insulation style)

Structure Principle

The equipment is installed at an angle of 35°. Sewage flows into the sieve from the opening of the end face of the grille. Scum, sediment and suspended solids will be intercepted by the screen .The waste on the grid is lifted up through the closed screw elevator, dewatered, pressed and transferred to the discharge opening over the bin.

The OA9 series grille works in a unique way, which can concentrate the filtering, washing, transportation, pressing and dewatering functions in one device. Depending on the selected screen pitch / pore size and mechanical specifications (screen basket diameters up to 700 mm), it can be adapted to various applications and processing flows. The machine can be installed in the box.Can also be installed directly in the water channel.

Specifications

OA9 Micro Strainer			OA9 Spiral brush + rinse Orifice filtration			Model Description
Model			OA9-300	OA9-400	OA9-500
Equipment width B(mm）			280	380	480
Channel width B1(mm）			300	400	500
Design channel depth H(mm）			MAX=800
Unloading height H1(mm）			1000~800
Installation angle α(°）			35
Rotation speed N(r/min）			≈6
Motor power(kw)			1.1
Water depth in front of the grid H3(mm）			460	615	655
Cross grid velocity V(m/s）			0.8
Hole clearance B(mm）	3	Water Flow（L/S）	40	65	85
	4		45	75	105
	5		50	85	120

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Benenv Group

Benefit the Environment

Beneny Group has more than 10 subsidiaries, with total assets of morel than 80 million USD. Benenv has more than 60 national patents and a number of international certifications, such as ISO9001 international quality system certification, CE EU certification, Ecovadis certification, etc.

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OA9 Micro Strainer