Introduction
Built-in waste crushing
Configure grid waste washing
Compact design
High Separation Efficiency
All stainless steel
Low maintenance workload
Application Areas
Municipal Sewage Treatment
Industrial Sewage Treatment
Food Processing Industry Sewage Treatment
Paper Making Sewage 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.
Reliable mandatory self-cleaning
Through the rotary waste cleaning, the entire filtering area will be thoroughly cleaned, and even under high pollution conditions, this mandatory cleaning can ensure an effective filtering area. In addition, it will also ensure that the grid waste will continue to be intercepted in the grid basket (before the filtering area), that is, the grid waste will not fall through the grid gap into the effluent stream during the cleaning process.
Multifunctional in one system
The OA1 series grille has grid waste 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 OA1 series grille can be equipped with anti-freeze protection device, and additional isolation measures can be added if necessary.
Refurbishment
The design of the OA1 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
No lubrication is required, just regular inspection.
Structure Principle
The equipment is installed at an angle of 35 degrees in a channel or a tank. Sewage flows into the basket drum, scum and suspended matters are intercepted accordingly.
When the water level before and after the grid reaches a determined difference in level, the waste scraping arm, fixed on the central axis, starts to rotate for cleaning.
The scraper brushes penetrates into the grid orifices, thoroughly clean the basket, removes the waste and transfer it via a screw conveyor to discharge it into a bin. The brushes are automatically cleaned during the drum rotation.
Specifications
* Model description
| OA1 Micro Strainer | OA1- Rake + Rinse Grid Filter | ||||||||
| Model | OA1-800 | OA1-1000 | OA1-1200 | OA1-1400 | OA1-1600 | OA1-1800 | OA1-2000 | ||
| Equipment width B(mm） | 780 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | ||
| Channel width B1(mm） | 800 | 1020 | 1220 | 1440 | 1640 | 1840 | 2040 | ||
| Design channel depth H(mm） | 695 | 815 | 920 | 1080 | 1220 | 1340 | 1490 | ||
| Unloading height H1(mm） | 800 | ||||||||
| Installation angle α(°） | 35 | ||||||||
| Minimum total length L(mm) | 3200 | 3400 | 3600 | 4200 | 4400 | 4600 | 5800 | ||
| Rotation speed N(r/min） | ≈6 | ||||||||
| Motor power(kw) | 1.1 | 1.5 | 2.2 | ||||||
| Maximum water depth in front of the grid H3(mm） | 395 | 515 | 620 | 780 | 920 | 1040 | 1190 | ||
| Cross grid velocity V(m/s） | 0.8 | ||||||||
| Mesh gap B (mm） | 6 | Maximum water flow （L/S） | 129 | 207 | 296 | 435 | 633 | 852 | - |
| 8 | 136 | 217 | 311 | 456 | 665 | 860 | 995 | ||
| 10 | 143 | 227 | 326 | 478 | 697 | 937 | 1202 | ||
| Note: There is a coarse grille in the front, the amount of passing water can be × 110%, and the design flow rate ≤ the maximum flow rate × 85% | |||||||||
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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