Sieve bend screens are widely used in industrial filtration and wastewater treatment systems for efficient solid-liquid separation. Also known as DSM screens or curved static screens , these wedge wire screening devices are designed to handle high flow rates while reducing clogging and maintenance requirements. How Does a Sieve Bend Screen Work? A sieve bend screen operates using gravity filtration. Wastewater or slurry flows across a curved wedge wire screen surface. Liquid passes through the slot openings while solids continue sliding downward along the screen face. Because the screen is curved, the flow direction continuously changes during operation. This improves separation efficiency and helps create a self-cleaning effect. Unlike rotary screening equipment, sieve bend screens require no moving parts, which significantly reduces maintenance costs. Main Advantages of Wedge Wire Sieve Bend Screens 1. Anti-Clogging Structure The V-shaped wedge wire profile helps prevent particles...
In refinery and hydroprocessing applications, reactor performance depends not only on catalysts and operating conditions, but also on the design of reactor internals. One important component is the scallop structure used inside radial flow reactors. Proper scallop design helps improve: flow distribution catalyst retention pressure drop control reactor operational stability As modern refining processes demand higher efficiency and longer catalyst life, scallop geometry has become an increasingly important engineering consideration. What Is a Scallop in a Radial Flow Reactor ? Scallops are curved screen structures installed inside radial flow reactors to guide process flow through the catalyst bed. They are commonly positioned: around the center pipe near the reactor shell inside catalyst support systems Their main functions include: supporting catalyst particles maintaining uniform radial flow preventing catalyst migration reducing hydraulic resistance Scallops are widely used in: hydro...