Pilot Scale Tubular Membrane Equipment

The tubular membrane pilot equipment serves as a crucial link in the research and application of membrane separation technology, playing a significant role in fields such as environmental protection, chemical industry, and biopharmaceuticals. This type of equipment bridges the gap between laboratory-scale tests and industrial production, primarily used for verifying the separation performance of membrane materials, optimizing process parameters, and assessing the stability of long-term operation.
From a technical standpoint, the core of the tubular membrane pilot equipment lies in its unique membrane component structure. Unlike flat or rolled membranes, tubular membranes feature a multi-channel design, with membrane tubes typically made of ceramic, polymer, or metal materials, coated with a selective separation layer on their inner walls.This structure enables the equipment to withstand high operating pressures (typically up to 10-30bar), making it particularly suitable for processing slurries with high solid content, high viscosity, or containing particles.

In terms of equipment composition, a complete tubular membrane pilot system typically consists of five major modules: the feed unit, the membrane separation unit, the cleaning and regeneration unit, the data acquisition unit, and the control system. The feed unit is equipped with precise filters and variable-frequency conveying pumps, allowing for precise control of flow and pressure; the membrane separation unit features a modular design, supporting the parallel operation of single or multiple membrane tubes; the cleaning and regeneration unit integrates chemical cleaning and reverse flushing functions, which are crucial for ensuring the long-term stable operation of the membranes.
In the application field, tubular membrane pilot equipment demonstrates wide adaptability. The water treatment sector is its main battlefield, including deep treatment of industrial wastewater (such as electroplating wastewater, dyeing wastewater), municipal wastewater reuse, and seawater desalination pretreatment. For example, using experimental data provided by a Shandong-based enterprise, the oil removal rate can reach 99.8% when treating oily wastewater with alumina tubular membranes, and the operating pressure is 30% lower than that of traditional organic membranes. In the food industry, the equipment is used for juice clarification, dairy concentration, and other processes, effectively preserving flavor substances; in the field of biopharmaceuticals, it is utilized for enzyme purification, sterile fermentation broth processing, and other operations to avoid the destruction of thermolabile substances. Particularly noteworthy is that during the preparation of lithium-ion battery cathode materials, tubular membrane pilot equipment is used for washing and concentrating nanometer particles, which can reduce energy consumption by over 40% compared to centrifugal processes.
When selecting a tubular membrane pilot equipment for potential users, four key dimensions should be considered: 1) Process compatibility, which requires selecting appropriate membrane materials based on the pH value, temperature, solid content, and other characteristics of the material to be processed; 2) Scalability, the equipment should have a smooth transition function from single-test to multi-branch parallel; 3) Data traceability, the control system should be able to fully record operating parameters across cycles; and 4) Technical service capability, quality suppliers usually provide process package support, including early-stage trial design and later-stage industrial scaling recommendations.