Mechanical Coarse Bar Screen for Screening Trash of Wastewater
Description
Our FHG Coarse Bar Screen is a heavy-duty pre-treatment solution engineered to automatically and continuously intercept these contaminants. Designed for 24/7 operation in demanding environments, it ensures uninterrupted performance for municipal wastewater plants, drinking waterworks, hydropower stations, and industrial pump stations.
Why Choose Our FHG Coarse Bar Screen?
Zero Clogging with Continuous Automatic Debris Blocking
Adopting isometrically distributed toothed harrows, the screen operates non-stop to capture floating objects without manual intervention. This prevents massive rubbish accumulation at intake points and reduces unplanned downtime by up to 70% compared to conventional screens.
Superior Slag Seizing & 99%+ Separation Efficiency
Precision-engineered tooth harrows conform to irregularly shaped debris, ensuring thorough capture of even the most challenging contaminants. This high separation efficiency effectively protects downstream pumps, turbines, and treatment equipment from abrasion and damage, extending their service life by 30% on average.
Fully Pre-Assembled for Fast, Low-Cost Installation
Each FHG unit arrives completely assembled and factory-tested, eliminating complex on-site assembly work. Installation time is cut by 60% compared to modular screens, allowing your project to go online faster and reduce construction labor costs.
Structure & Working Principle
[Product Structure Diagram Alt: FHG Coarse Bar Screen Internal Components Labeled Diagram]
Core Components
The FHG Coarse Bar Screen is built with 7 durable, corrosion-resistant modules:
Heavy-duty rotational drive system
Reinforced steel rack
High-tensile traction chain
Submersible underwater guide wheel
Dual-layer auxiliary and main grid
Slag retaining plate
Automatic top discharge system
Step-by-Step Working Process
Rotational Drive Activation
The electric drive system powers the traction chain to move the tooth harrows in a continuous vertical loop.
Underwater Directional Redirection
Harrows descend behind the main grid and are redirected to the front by the underwater guide wheel at the channel bottom.
Debris Capture & Vertical Lifting
As harrows move upward, they seize all floating debris intercepted by the grid and lift it vertically to the top discharge section.
Automatic Debris Discharge
Debris is automatically scraped off the harrows and discharged onto a conveyor belt or garbage truck for off-site disposal.
Technical Specifications
Standard Model: FHG1.5
Parameter | Specification |
|---|---|
Channel Width | 1500mm |
Device Net Width | 1400mm |
Grid Gap Range | 15–100mm (customizable) |
Installation Angle | 75° (customizable 60°–80°) |
Motor Power | 1.5kW |
Motor Protection Level | IP55 (dust-tight & water-resistant) |
Motor Insulation Level | F Class (155°C high-temperature resistance) |
Operation Mode | 24-hour continuous or intermittent run |
Full FHG Series Model Range
Channel Width (B) | Device Net Width | Motor Power (kW) | Grid Gap (mm) | Installation Angle |
|---|---|---|---|---|
700mm | 600mm | 0.8kW | 15–20 | 75° (standard) |
900mm | 800mm | 1.1kW | 25–30 | 75° (standard) |
1100mm | 1000mm | 1.2kW | 35–40 | 75° (standard) |
1400mm | 1300mm | 1.5kW | 45–50 | 75° (standard) |
1700mm | 1600mm | 1.8kW | 55–60 | 75° (standard) |
1900mm | 1800mm | 2.2kW | 65–70 | 75° (standard) |
2100mm | 2000mm | 2.2kW | 75–80 | 75° (standard) |
2300mm | 2200mm | 2.4kW | 85–90 | 75° (standard) |
2900mm | 2800mm | 3.0kW | 100 | 75° (standard) |
Applications
Municipal Wastewater Treatment Plants
Intercepts large floating debris to protect pumps, aeration systems, and secondary treatment equipment, reducing annual maintenance costs by up to $50,000 per plant.
Drinking Water Treatment Plants (Waterworks)
Removes branches, leaves, and plastic waste from raw water intakes, ensuring the safety and efficiency of subsequent filtration and disinfection processes.
Hydropower Stations
Prevents debris from damaging turbine blades and intake structures, minimizing power generation interruptions and extending turbine lifespan.
Industrial Pump Stations
Protects water transfer pumps from clogging and mechanical damage, ensuring reliable water supply and drainage for residential, commercial, and industrial areas.
Industrial Wastewater Pre-Treatment
Suitable for food processing, paper manufacturing, textile, and mining industries, where large floating contaminants are present in effluent.
FAQ
What is the maximum channel width your FHG coarse bar screens can accommodate?
Our standard FHG series supports channel widths from 700mm to 2900mm. For channels wider than 2900mm, we can design custom multi-unit configurations to meet your flow requirements.
Can the FHG coarse bar screen operate continuously 24 hours a day?
Yes, it is specifically engineered for 24-hour continuous or intermittent operation, making it ideal for high-flow wastewater treatment plants and waterworks that cannot afford downtime.
What material options do you offer for corrosive environments?
We offer stainless steel 304 for mild corrosive environments and stainless steel 316 for highly corrosive industrial wastewater applications. All components can be customized to your specific corrosion resistance needs.
How long does installation typically take?
Thanks to its fully pre-assembled design, installation of a standard FHG unit takes 1–2 days with a small crew. Our technical team can provide on-site guidance to ensure a smooth installation process.
Do you provide custom solutions for non-standard channel sizes or special requirements?
Absolutely. Our engineering team specializes in customizing screens for non-standard channel dimensions, installation angles, discharge heights, and special operating conditions. Contact us to discuss your unique project needs.