What is the angle of the bars on a mechanically cleaned bar screen?

The angle of the bars on a mechanically cleaned bar screen is typically set between 45 to 60 degrees. This angle is effective for capturing solids from wastewater while allowing liquid to flow through. The position of the bars is crucial; if they are too steep or too flat, it can either trap too many solids or fail to adequately filter the wastewater, leading to inefficiency in the screening process.

Bar screens are designed to intercept debris and larger solids before the water enters treatment processes, and the 45 to 60-degree angle strikes a balance that maximizes collection efficiency without impeding water flow. A steeper angle could cause blockages, while a shallower angle might not effectively capture materials. Thus, this range is widely accepted in wastewater treatment facilities to ensure optimal performance of the screening equipment.