The in-line mixer/static mixer is a fixed-element component used within automated beverage batch blending systems. It is installed directly in the pipeline between storage tanks and final blending vessels, ensuring homogeneous blending of liquid ingredients such as water, syrups, flavorings, and additives as they flow through the system. Operating continuously during the transfer process, it relies solely on the system's pumping pressure to achieve mixing, requiring no external energy input. The mixer contains a series of fixed helical or geometric elements arranged inside a pipe. As the beverage ingredients flow through under system pressure, these elements repeatedly divide, rotate, and recombine the fluid streams, creating turbulent flow patterns that promote thorough mixing through laminar flow redistribution and increased interfacial surface area. This design is particularly effective for blending miscible liquids of varying viscosities and densities. The mixer is available in materials such as Stainless Steel 316L and food-grade plastics, with parameters including flow rate (10–100 L/min), pressure drop (0.05–0.5 bar), number of elements (6–24), mixer length (300–2000 mm), operating pressure (1.0–1.6 MPa), operating temperature (-10–120°C), pipe diameter (DN25–DN300 per ISO 1127), material grade (SS304/SS316L per ASTM A240), surface roughness (0.4–0.8 μm Ra per ISO 4287), connection type (Clamp/Flange per ISO 2852), weight (5–50 kg), and IP rating (IP54–IP65 per IEC 60529). These values are reference ranges and must be verified for the specific model and application. The mixer is designed for use in hygienic and washdown environments, with appropriate seals and surface finishes. For selection, consider the required flow rate, allowable pressure drop, pipe size, and compatibility with the product's temperature and chemical properties. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement.
The mixer operates by directing the fluid through a series of fixed geometric elements inside a pipe. These elements, typically helical or shaped to induce flow division, cause the fluid to be repeatedly split, rotated, and recombined. This action creates turbulent flow and increases interfacial surface area, promoting thorough mixing of the beverage ingredients. The process relies on the system's pumping pressure, with no moving parts, ensuring low maintenance and consistent performance.
