Automatic Coarse Bar Screen for Wastewater Pretreatment System
The automatic coarse bar screen is a mechanical wastewater pretreatment device designed to continuously remove large floating solids from water. It is widely used in municipal and industrial wastewater systems, waterworks, pump stations, and hydropower plants. The system efficiently intercepts debris such as wood, plastics, weeds, and household waste, significantly improving downstream treatment performance and reducing clogging risks in screening processes.
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Product introduction of Automatic Coarse Bar Screen
The automatic coarse bar screen, also known as a mechanical bar screen or coarse screening system, is a front-stage solid-liquid separation device used in wastewater pretreatment.
It is designed for large and medium-scale water supply and drainage projects, ensuring continuous interception and removal of coarse debris before further treatment processes.
The equipment improves overall system efficiency by protecting pumps and downstream treatment units from blockage and overload.
Working principle
The automatic coarse bar screen operates through a motor-driven chain and rake system.
Wastewater flows through a fixed grid where large floating solids are intercepted. The toothed rake system moves along the screen surface, lifting and removing trapped debris continuously.
The rotational system drives the rake upward, transporting collected solids to the discharge outlet, where they are transferred to a conveyor or waste container.
This continuous mechanical cleaning process ensures stable operation and prevents clogging in high-load wastewater environments.
Product Parameter Table
| Width of Canal B (m) | 3 |
| Speed of rake (m/min) | -5 |
| Grid gap B1 | 100 |
| Net width of device b (mm) | 2900 |
| Height of outlet (mm) | 750 (1000) |
| Angle of installation | 75° |
| Power (kW) @ H=2.5m | 3 |
| Power (kW) @ H=5m | 3 |
| Power (kW) @ H=7.5m | 3 |
| Power (kW) @ H=10m | 3 |
Main Features
- Automatic coarse bar screen provides continuous debris interception and removal
- Isometric toothed rake design ensures stable and efficient cleaning performance
- Prevents clogging by automatically removing large floating solids
- High separation efficiency improves wastewater pretreatment effectiveness
- Complete integrated machine design for easy installation and operation
- Robust mechanical structure ensures long-term stable performance
- Suitable for high-load municipal and industrial wastewater conditions
- Underwater guide wheel system ensures smooth chain operation
- Low maintenance requirements with durable stainless steel construction
- Reliable operation even under heavy debris loading conditions
Comparison SEO Section
| Automatic Coarse Bar Screen | Manual Bar Screen |
|---|---|
| Automatic continuous cleaning | Requires manual cleaning |
| High debris removal efficiency | Lower efficiency |
| Suitable for high-flow systems | Limited capacity |
| Reduced maintenance workload | High labor demand |
Application Scenarios
The mechanical coarse bar screen system is widely used in:
- Municipal wastewater treatment plants
- Urban sewage and drainage pumping stations
- Waterworks intake screening systems
- Hydropower station inlet protection systems
- Industrial wastewater pretreatment facilities
- Food, textile, and paper industry wastewater systems
- Stormwater and urban drainage interception systems
Why Choose This System
- Efficient interception of large floating solids in wastewater
- Protects downstream equipment from clogging and damage
- Fully automatic operation reduces manual maintenance
- Suitable for municipal and industrial applications
- High durability with corrosion-resistant materials
- Stable performance in high-flow wastewater conditions
FAQ
What is an automatic coarse bar screen used for?
It is used for removing large floating solids in wastewater pretreatment systems.
How does a mechanical bar screen work?
It uses a toothed rake system to continuously lift and remove debris from wastewater.
Where is coarse bar screen used?
It is used in municipal sewage plants, pump stations, and water intake systems.
What types of waste can it remove?
It removes wood, plastic, weeds, branches, and household waste materials.
Why use a coarse bar screen before treatment?
It prevents clogging and protects downstream wastewater treatment equipment.
What is the difference between coarse and fine screen?
Coarse screens remove large debris, while fine screens remove smaller particles.
Contact us to get your quotation now.
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