Welcome: Yiwu Weihao Machinery Equipment Company
As a professional manufacturer of industrial evaporation equipment, [Your Company Name] specializes in designing and manufacturing high-performance scraper thin film evaporators (also known as wiped film evaporators). This advanced equipment is engineered for the gentle evaporation, concentration, and purification of heat-sensitive, high-viscosity, and easy-scaling materials, widely used in fine chemical, pharmaceutical, food, and petrochemical industries.
The scraper thin film evaporator adopts a vertical or horizontal structure, with a rotating scraper (wiper) installed inside the heating cylinder. When the equipment operates, the feed liquid enters the top of the evaporator and is evenly distributed onto the inner wall of the heated cylinder by a precision distributor. The rotating scraper continuously scrapes the liquid into a uniform, thin film (0.1-1.0 mm) that flows downward along the wall. The heating medium (steam or hot oil) in the jacket transfers heat to the liquid film, causing rapid vaporization of the solvent. The generated secondary steam is discharged from the top of the evaporator for condensation or reuse, while the concentrated product or crystal is collected from the bottom. The high-speed rotation of the scraper effectively prevents material scaling and coking, ensuring stable and continuous operation.
Gentle Processing: Short residence time (only a few seconds to tens of seconds) and low operating temperature, effectively protecting heat-sensitive materials from decomposition and denaturation, suitable for high-value products such as pharmaceuticals and fine chemicals.
Strong Adaptability: Excellent performance in handling high-viscosity (up to 100,000 mPa·s), high-solid-content, and easy-scaling materials, which traditional evaporators are difficult to process.
High Evaporation Efficiency: The thin liquid film formed by the scraper maximizes the heat transfer area and heat transfer coefficient, achieving fast evaporation speed and high concentration efficiency.
Easy to Clean & Maintain: The rotating scraper has a self-cleaning function, reducing scaling and deposition; the modular design allows easy disassembly and maintenance, compatible with CIP cleaning systems.
Flexible Design: Available in vertical and horizontal models, with customizable specifications (evaporation capacity, heating area, material of construction) to meet different process requirements; optional vacuum operation for lower evaporation temperature.
Corrosion Resistance: The cylinder, scraper, and distributor are made of high-quality materials such as 316L stainless steel, Hastelloy, or titanium, ensuring corrosion resistance and long service life in harsh working conditions.
Our scraper thin film evaporators are widely used in various industrial fields that require gentle evaporation and purification, including but not limited to:
Pharmaceutical Industry: Concentration and purification of pharmaceutical intermediates, active pharmaceutical ingredients (APIs), herbal extracts, and fermentation broth; solvent recovery in drug synthesis.
Fine Chemical Industry: Concentration, distillation, and purification of resins, dyes, pigments, additives, and organic solvents; handling of high-viscosity and heat-sensitive chemical materials.
Food Industry: Concentration of fruit juice, vegetable juice, dairy products, and plant proteins; purification of edible oils and food additives.
Petrochemical Industry: Recovery of aromatic hydrocarbons, lubricating oil purification, and treatment of high-viscosity petrochemical wastewater.
Other Fields: Concentration of wastewater containing high-viscosity organic matter, purification of rare metal solutions, and laboratory-scale research and development.
Yiwu Weihao Machinery Equipment Company provides one-stop solutions for scraper thin film evaporators, from professional process design, custom manufacturing, and on-site installation/commissioning to operator training and long-term after-sales support. Our technical team has rich experience in handling various difficult materials and can tailor the optimal evaporator system according to your specific material characteristics, processing capacity, and site conditions.
Whether you need a laboratory-scale small model or an industrial-scale large system, we can provide reliable products and professional services to help you improve production efficiency, reduce costs, and ensure product quality.
Contact us today to get detailed technical parameters, a free process proposal, and a quotation for your scraper thin film evaporator project.
