Dual Flow Traveling Band Screen

Beaudrey Dual Flow Traveling Band Screen

**Named BTA for 316(b)**

Overview

Traveling band screens are typically installed in an intake screening system downstream from the trash rakes or coarse bar screens and upstream of the circulating water pump. Their main function is to remove debris (from 1 mm-10 mm) before the circulating water is distributed to sensitive plant components.

When water flows through the panels of the traveling water screen, debris is collected on the NoCling™ mesh panels. As the screen rotates, the debris is carried up to deck level where a pressure spray flushes it from the panels into a debris trough. The clean panels then rotate back into the water, resulting in continuous, uninterrupted screening. Traveling band screens are generally installed with one of three possible flow patterns: external to internal dual-flow, internal to external dual-flow (center-flow), or thru-flow.

External to Internal Dual-Flow Internal to External Dual-Flow Beaudrey Traveling Band Screens

External to Internal Dual-Flow

Dual-flow traveling band screens have become the most popular type of band screen because of the many advantages they offer. These traveling screens are installed with the screening surface parallel to the water flow causing the water to flow into the screen from the sides rather than head-on. This installation method effectively eliminates the chance of debris carry over and provides a greater screening surface area, making the dual-flow design the most effective style of traveling band screen available. The dual-flow design is ideal for screening high volumes of water with a lot of debris. Beaudrey dual-flow traveling band screens can be retrofitted into existing thru-flow traveling band screen openings. This allows plants to increase their efficiency while decreasing the bottom line since they do not have to invest in costly modifications of the existing civil structures nor do they have to re-design the existing intake layout.

 

Value Creating Advantages

  • Named best technology available (BTA) for 316(b)
  • Protects downstream components in the water intake system

  • Retrofitting is an economical alternative to replacing entire intake screening systems. Beaudrey traveling band screens are designed to retrofit any existing intake system

  • Provides a large screening area in a compact design

  • Designed so that Beaudrey Scoop-a-Fish™ protection system can be installed on the screen

  • High quality construction and seals prevent any grease from leaking into the water source

  • Custom engineering minimizes the capital expenditure of the intake system

  • Framed design reduces civil work and installation costs for retrofits and new screens

  • Low maintenance

  • Dual-flow traveling band screens have zero carryover and 100% screening efficiency

  • With rotation speeds of up to 20 m/min, the Beaudrey traveling band screen has high speed debris removal