Rotary Drum Screen OA2

OA2 Micro Strainer

Rotary Drum Screen

Filter gap 1~5 mm

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OA2 Micro Strainer

lntroduction

Rotary Drum Screen OA2 Micro Strainer is one of the complete equipment products for water supply and drainage pretreatment.

Reliable and effective filtration machinery, widely applicable to municipal sewage, industrial sewage and service water treatment wedge grid grille.

Three-in-one function

for filtering residue,
transferring and pressing

Integrated filter residue washing function

Numerous domestic and foreign installation cases

High Separation Efficiency

All stainless steel

Low maintenance workload

Applications

Municipal Sewage Treatment

Industrial Sewage Treatment

Food Processing Industry Sewage Treatment

Service Water Treatment

Technical Advantages

Low-head Loss | High Separation Efficiency

The shape of the grid basket and the installation angle of 35° make the filtering area much larger than the vertical or large-angle grid, so the low-head is minor, the separation efficiency is high, and the processing capacity is large.

All stainless steel

The machine is made of stainless steel and treated with acid passivation to prevent corrosion and to reduce maintenance work.

Forced filtering

Sewage enters from the opening of the equipment and will only be discharged after being filtered through a screen, and all the grid waste to be filtered is intercepted.

Multifunctional in one system

The OA2 series grille has grid slag filtration, transfer, flushing and dewatering functions in a single compact unit. Additional closures ensure that no odor escapes during operation of the entire unit.

Outdoor installation

Outdoor installation of OA2 series grille can be equipped with anti-freeze protection device, and additional isolation measures can be added if necessary.

Refurbishment

The design of the OA2 series grille allows for subsequent improvements and configuration updates if necessary. Both the screening device and the integrated grid cleaning system can be configured later.

Low maintenance workload

Just check and inspect regularly.

Structure Principle

The equipment is installed at an angle of 35 °. Sewage flows into the grid basket from the opening of the end face of the grille, and scum, sediment and suspended solids will be intercepted by wedge-shaped grids or a circular mesh.The slag on the grid basket has a carpet effect, which further improves the filtration and separation efficiency.

When the water level behind the front and rear of the filter device reaches a certain water level difference, the device is started, the grid waste is lifted by the rotation of the grid basket, and the grid waste is discharged into the central hopper with the help of a scraper brush and a washing rod. There is a transport screw in the central chute. During the transportation in the central tube, the grid waste is squeezed and dewatered, and then discharged into the subsequent transport equipment or container. The whole process is clean and free of odour.

Specifications

* Model description

OA2 Micro Strainer			OA2 - Brush + Rinse Grid Filter
Model			OA2-800	OA2-1000	OA2-1200	OA2-1400	OA2-1600	OA2-1800	OA2-2000
Equipment width B(mm）			780	980	1180	1380	1580	1780	1980
Channel width B1(mm）			800	1000	1200	1420	1620	1820	2020
Design channel depth H(mm）			820~1020	970~1170	1100~1300	1230~1530	1410~1610	1530~1730	1600~1800
Unloading height H1(mm）			1000~800
Installation angle α(°）			35
Minimum total length L(mm）			3200	3400	3600	4800	5000	5200	6200
Rotation speed N(r/min）			≈6
Motor power(kw)			1.1		1.5				2.2
Water depth in front of the grid H3(mm)			520	670	800	930	1110	1230	1300
Cross grid velocity V(m/s）			0.8
Mesh gap B(mm）	1	Water flow （L/S）	60	100	-
	2		90	154	214	306	402	510	-
	3		110	192	262	373	490	622	768
	4		120	203	280	402	572	756	930
	5		130	224	310	410	616	815	1020

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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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