Explore our premium machinery range customized for high-efficiency concentration and dewatering.
China Suppliers and Factory for Heat-Sensitive Liquid Concentration Manufacturers, offering advanced thermal separation solutions.
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Reliable factory solutions for crystallizing and high-fouling process applications, manufactured by top China suppliers.
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Highly efficient solid-liquid separation and dewatering equipment designed for high-density pulps and organic wastes.
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Engineered for effective starch refining, washing, and purity enhancement within starch extraction lines.
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Superior separation technology for protein and starch fraction isolation, guaranteeing high-grade industrial outputs.
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Preserves kernel integrity while stripping germs efficiently during wet-milling processes.
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Tailor-made industrial setups engineered specifically for low-temperature, heat-sensitive liquid concentration.
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Advanced thermodynamics integration combined with high-grade steel pressure vessels designed for global safety standards.
Read More →A falling film evaporator represents the peak of thermal separation efficiency, particularly for heat-sensitive, low-viscosity solutions. The core process relies on gravity-driven film dynamics. The feed liquid enters at the top of the heating chamber, where a specialized distribution system (usually involving precision-level distributor plates or spray nozzles) allocates the fluid uniformly across the inner surfaces of vertical tubes.
As the liquid flows downward as a thin, continuous film, it absorbs heat from the steam or heating medium circulating on the shell side of the tube bundle. Rapid boiling occurs, generating vapors that travel co-currently downwards with the remaining liquid concentrate. The high vapor velocity creates a shear force that stabilizes and thins the liquid film, accelerating the heat transfer coefficient.
A comprehensive overview of our CE-certified falling film designs compared to forced circulation systems.
| Feature Parameter | Falling Film Evaporator | Forced Circulation Evaporator | MVR Evaporator Integration |
|---|---|---|---|
| Heat Sensitivity | Excellent (Short residence time, single-pass) | Moderate (Recirculated exposure) | Excellent to High (Dependent on design) |
| Viscosity Limits | Low to Medium (< 150 mPas) | High (Up to 1000 mPas or slurries) | Viscosity-dependent dynamic design |
| Fouling Tendency | Low (Requires constant wetting control) | Extremely Low (High velocity prevents scale) | Medium (Optimized with CIP regimes) |
| Energy Consumption | Low (Very low delta-T operation possible) | High (Driven by heavy circulation pumps) | Lowest (Uses electric mechanical compression) |
| Typical Applications | Juices, dairy, pharmaceuticals, chemicals | Salts crystallizers, wastewater crystallization | Starch wastewater, DDGS slop concentration |
Pioneering high-performance solutions designed for green transition and process automation.
Integration of multi-effect setups with Mechanical Vapor Recompression (MVR) and Thermal Vapor Recompression (TVR). The design aims to maximize thermal reuse, achieving a steam-to-evaporation ratio of up to 1:20 in advanced configurations, aligning with global carbon-reduction targets.
Deploying IoT sensors to monitor dynamic changes in heat transfer coefficients. Real-time diagnostic algorithms predict scale formation and control automated clean-in-place (CIP) scheduling without shutting down the plant.
Utilizing high-alloy stainless steels, duplex steels, titanium, and hydrophobic surface coatings to minimize adhesion. This maintains optimal falling film velocity and extends runtimes on severe chemical waste processes.
Custom-engineered thermodynamic designs adapted to strict global industrial demands.
By incorporating our MQG Airflow Dryer and Single Screw Press downstream, factories can build complete raw-material-to-dry-powder loops, maximizing yield and reducing overall water footprint.
A global leader in concentration, drying, and starch refining engineering since 1992.
Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd (formerly Yixing Yangxi Light Industry Machinery Factory), founded in 1992, is situated on the shores of Taihu Lake in Yixing City. As a member of the China Starch and Alcohol Association, we have spent over three decades establishing ourselves as a premier technological hub for pressure vessels and thermal separation machinery.
Our state-of-the-art facilities span over 54,000 square meters of total area, with 22,000 square meters of dedicated manufacturing space. We house special pressure vessel licenses alongside ASME "U" stamp authorizations and comprehensive CE certifications to meet strict regulatory frameworks around the globe.
Our journey of quality engineering, precision manufacturing, and compliance certifications.
Today, the company operates across over 54,000 square meters, employing 3 senior engineers, over 20 engineers and assistant engineers, and a total staff of 120 dedicated professionals.
Acquired international quality system certification (Certificate No.: 45021), establishing a complete quality assurance system aligned with international standards.
Authorized to use the ASME "U" Stamp, signaling entry into international markets for heavy-duty pressure vessels.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42).
Accredited as a High-Tech Enterprise in Jiangsu Province for advanced R&D accomplishments.
Obtained ISO9001 Quality Management Certification to enforce rigorous design and manufacturing controls.
Established as Yixing Yangxi Light Industrial Machinery Factory, covering 15 mu of land with 45 pioneering workers.
Why global industries partner with Jiangsu Zongheng for large-scale evaporation and drying setups.
Located in the heart of China’s stainless steel and pressure vessel cluster, we secure high-grade steels (304, 316L, 2205) quickly, reducing raw material lead times and providing competitive pricing.
From shell rolling, automatic tube welding, and non-destructive testing (NDT) to final pickling and passivating—every manufacturing phase occurs under one roof to maintain high quality control.
Our proximity to Shanghai Port enables shipping of oversized pre-fabricated columns, lowering field-assembly expenses and reducing downtime during on-site integration.
Strict quality assurance in accordance with international pressure vessel guidelines.
In-depth insights into working mechanics, anti-fouling measures, and thermodynamic layouts.
CE Certification confirms that the evaporation plant meets European Union Pressure Equipment Directive (PED) 2014/68/EU standards. It verifies the thickness of safety walls, heat stress tolerances, and component choices, ensuring safe operations under extreme thermal and pressure conditions.
Unlike forced circulation designs that keep liquid inside heating tubes for long durations, a falling film evaporator operates in a single-pass configuration. The liquid film runs down the tube surface rapidly, resulting in exposure times of only a few seconds. This minimizes heat load and preserves protein structures, color, and flavor profiles.
Dry-out happens when the local liquid flow rate drops below the minimum wetting threshold, causing the liquid film to break and expose dry heated metal. This leads to scale buildup and degradation. We prevent this using high-precision distribution plates, variable tube geometries, and automated flow controls that maintain stable wetting rates even during feed variations.
Yes. Retrofitting involves integrating a centrifugal compressor or roots blower to compress the exhaust vapors from the final effect. This raises their thermal energy so they can act as the heating medium for the first effect, significantly lowering live-steam dependencies.
Explore our full range of evaporation, drying, and separation equipment designed for high-performance industrial plants.
Engineered for crystallization, concentration, and handling high-viscosity media in demanding chemical processes.
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Features low-oxygen operating loops and steam-saving technology for drying starch, organic chemicals, and DDGS slop.
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A high-precision germ separator designed for wet-milling maize processing plants, maximizing germ extraction yields.
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Advanced mechanical vapor recompression designs that cut steam consumption by reusing latent heat energy.
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A multi-stage hydrocyclone system designed to wash, refine, and concentrate starch milk efficiently.
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Energy-efficient evaporation systems custom-designed for starch, alcohol, and pharmaceutical waste concentration.
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Reliable dewatering machinery featuring adjustable backpressure cones, perfect for high-capacity organic fiber separation.
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High-speed hot air drying technology designed for uniform drying of starches, food powders, and fine chemical materials.
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