Welcome: Yiwu Weihao Machinery Equipment Company
As a leading manufacturer of high-efficiency evaporation equipment for biomass and protein processing, Yiwu Weihao Machinery Equipment Company specializes in designing and manufacturing Scraper Thin Film Evaporators dedicated to Grass Protein Concentration—core equipment tailored for the concentration of grass protein slurry from alfalfa, ryegrass, clover, and other forage crops. Combining advanced scraper thin film technology with low-temperature vacuum operation, this equipment perfectly addresses the challenges of grass protein concentration: high viscosity, easy foaming, strong thermal sensitivity, and tendency to scale. It achieves continuous, efficient concentration while fully preserving grass protein activity, nutritional value, and functional properties, making it the preferred choice for modern industrial grass protein production lines.
Grass protein is a high-quality, sustainable plant protein source widely used in feed, food, and biopharmaceutical industries. Our scraper thin film evaporator solves the bottlenecks of traditional concentration methods—long heating time, protein denaturation, low efficiency, and severe foaming—providing a reliable, energy-saving, and stable solution for large-scale grass protein concentration.
The Scraper Thin Film Evaporator for Grass Protein Concentration realizes efficient, gentle concentration through a scientific workflow adapted to grass slurry characteristics:
Feed Pretreatment: Raw grass protein slurry (after extraction and filtration) is preheated and degassed to remove air bubbles, reduce viscosity, and prevent severe foaming during evaporation.
Forced Thin Film Formation: The pretreated grass slurry is fed into the evaporator, where a high-speed rotating scraper system uniformly distributes the high-viscosity slurry into an ultra-thin, turbulent liquid film on the inner wall of the heating cylinder. This mechanical film formation ensures uniform heat distribution and avoids local overheating.
Low-Temperature Vacuum Concentration: Operating under high vacuum (1–10 mbar) and controlled low temperature (40–70°C), water in the grass slurry is rapidly vaporized. The extremely short material residence time (5–20 seconds) effectively prevents grass protein from thermal denaturation, degradation, and loss of nutritional activity.
Anti-Foaming & Vapor Separation: The evaporator’s internal structure and scraper design suppress foam generation; a built-in high-efficiency demister separates vapor from entrained protein droplets, ensuring product purity.
Concentrate Discharge & Recycling: The concentrated grass protein slurry (dry matter content up to 40–60%) is continuously discharged from the bottom, while the separated water vapor is condensed and recycled, realizing closed-loop, energy-saving operation.
Grass Protein-Specific Design: Optimized for high viscosity (up to 5,000 mPa·s), easy foaming, and thermal sensitivity of grass slurry; the scraper system continuously renews the liquid film, preventing scaling, coking, and protein adhesion on the heating surface.
Ultra-Short Residence Time: Material stays in the heating zone for only 5–20 seconds, combined with low-temperature vacuum operation, maximally preserving grass protein activity, solubility, and nutritional value, avoiding denaturation and discoloration.
Strong Anti-Foaming Performance: Special scraper structure and internal flow design effectively suppress foam during grass slurry concentration, eliminating foam overflow and ensuring stable continuous operation.
High Concentration Efficiency: Turbulent thin film formed by the scraper significantly improves heat transfer efficiency; evaporation intensity reaches 150–250 kg/m²·hr, greatly increasing concentration capacity compared to traditional evaporators.
Corrosion & Wear Resistance: All wetted parts made of food-grade 316L stainless steel, resistant to organic acid and fiber corrosion in grass slurry; scraper blades use wear-resistant materials, extending service life.
Fully Automatic Control: PLC + touch screen control system, real-time monitoring of vacuum degree, temperature, feed rate, and discharge concentration; automatic adjustment of scraper speed and heating power, realizing unmanned operation.
Customizable Configuration: Available in single-stage, double-stage, or multi-stage concentration; customize evaporation area (0.5–50 ㎡), scraper type, and vacuum level according to daily grass protein output (500 kg–30 tons) and target concentration (30–60% dry matter).
Our Scraper Thin Film Evaporators for Grass Protein Concentration are widely used in biomass protein processing and sustainable feed/food industries, providing core equipment for grass protein production, including but not limited to:
Industrial Grass Protein Production Plants: Large-scale continuous concentration of grass protein slurry from alfalfa, ryegrass, and clover, producing high-quality plant protein for feed and food additives.
Forage Processing Enterprises: Concentration of fresh grass juice and slurry, improving product dry matter content, reducing transportation and storage costs, and enhancing product added value.
Biomass Protein R&D Institutions: Small and pilot-scale concentration of grass protein for new product development, such as plant-based meat raw materials and functional protein additives.
Sustainable Feed Production: Concentration of grass protein to produce high-protein feed ingredients, replacing soybean meal and reducing reliance on imported protein sources.
We provide one-stop solutions for Scraper Thin Film Evaporators for Grass Protein Concentration, from professional grass slurry property analysis, process design, and custom manufacturing to on-site installation, commissioning, operator training, and long-term after-sales support. Our technical team has rich experience in heat-sensitive protein and high-viscosity biomass concentration projects, and can tailor the most suitable evaporation system according to your raw material characteristics, output, and concentration requirements, helping you reduce production costs and improve product quality.
Whether you need a small pilot evaporator for R&D or a large-scale industrial production line, we can provide reliable equipment and professional services to meet your grass protein concentration needs.
Contact us today to get a free grass slurry concentration test, technical proposal, energy consumption calculation, and quotation for your Grass Protein Concentration Evaporator project.
