Explore our leading-edge hardware tailored for starch refining, steam drying, waste heat recovery, and efficient wastewater treatment.
Established in 1992 (originally known as the Yixing Yangxi Light Industry Machinery Factory), Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd has evolved into a premier high-tech enterprise. Situated in Zhoutie Town, Yixing City on the shores of Taihu Lake, our facility occupies an expansive area of 54,000 square meters, with dedicated manufacturing workshops spanning over 22,000 square meters.
As a prominent member of the China Starch and Alcohol Association, we specialize in the design, engineering, and manufacturing of thermal concentration systems, industrial drying plants, starch refinement cyclones, and high-integrity pressure vessels (Category III / ASME standard). Our installations are globally distributed across the bio-fermentation, food processing, industrial alcohol, environmental protection, chemical synthesis, and petrochemical industries.
Innovating at the intersection of thermal thermodynamics and digital controls to build the next generation of industrial concentration systems.
Modern Mechanical Vapor Recompression (MVR) systems are replacing conventional multi-effect evaporators. By utilizing dynamic centrifugal turbo-compressors to recompress secondary vapor, the latent heat of vaporization is fully reclaimed. This results in up to a 90% reduction in live steam consumption compared to single-effect thermal evaporation processes.
Our futuristic roadmap integrates waste heat evaporation systems that harvest energy from drying vapor, flash steam, and low-temperature plant flue gas. Designing customized hybrid cycles containing pre-heaters, stripping columns, and multiple-effect setups ensures that zero thermodynamic value is discarded from your process envelope.
Fouling in heat exchanger tubes remains a major efficiency barrier. Our research highlights the use of high-grade duplex stainless steels (such as 2205 and 2507) and specialized smooth, hydrophobic inner coatings. Combined with optimized fluid velocities inside forced circulation plants, scaling is significantly reduced.
Tailored process pathways configured to meet strict environmental limits and maximize valuable resource recovery.
Environmental regulations globally demand zero liquid pollutant discharge. Our ZLD plants combine MVR falling film evaporators with crystallization loops (typically utilizing forced circulation configurations). The system achieves separation, reclaiming pure distilled water for reuse in production, while precipitating dissolved salts as dry solids.
In wet milling, corn steep liquor (CSL) is highly viscous and heat-sensitive. Our waste heat evaporators integrate seamlessly with production loops to concentrate steepwater up to 48% dry substance. Furthermore, YDX Starch Washing Cyclones remove soluble proteins and impurities, maximizing starch yields and refining downstream processing efficiency.
Industrial ethanol distilleries generate massive amounts of thin stillage. Utilizing our waste heat evaporators linked with the ZXG Tube Bundle Dryers allows plants to efficiently process stillage into valuable Distillers Dried Grains with Solubles (DDGS), turning a disposal liability into a stable secondary revenue stream.
Petrochemical waste streams often contain corrosive salts and volatile organic components. Our custom ASME-certified Category III pressure vessels, evaporative concentrators, and tube bundle dryers are constructed with corrosion-resistant alloys, ensuring continuous operation under severe conditions.
Understanding the engineering mechanics behind our primary process offerings.
Optimized for low temperature difference, heat-sensitive feeds. The liquid flows as a thin film down the inner walls of vertical heat-exchanger tubes. High heat transfer coefficients are achieved with minimal residence times, preventing product thermal degradation.
View More DetailsSpecifically engineered for slurries, high-viscosity liquids, or crystallizing solutions. High-velocity recirculation pumps push the liquid through the heating elements under pressure, suppressing boiling until the liquid enters the flash vessel. This prevents fouling on the tube walls.
View More DetailsBy reusing the latent heat of secondary vapor through mechanical vapor recompression, this system requires zero cooling water and minimal steam during steady-state operations. It is the gold standard for long-term operational cost reduction.
View More DetailsFeaturing a rotating steam-heated tube bundle nested inside a stationary shell. The product cascades gently over the tubes, ensuring highly efficient indirect heat transfer. Ideal for low-oxygen drying of bulk products like starch, germ, and fiber.
View More DetailsEmploys high-speed, hot air streams to instantly suspend and dry particulate materials. The varying tube diameters create pressure impulses that continuously break up agglomerates, providing flash drying inside a highly compact footprint.
View More DetailsA multi-stage hydrocyclone system designed for starch washing, concentration, and refining. Optimizing liquid distribution inside the hydrocyclone blocks ensures highly precise separation of starch grains from proteins and cell residues.
View More DetailsLeveraging advanced manufacturing systems and deep integration to deliver high-performance hardware globally.
Operating a 54,000+ square meter factory gives Jiangsu Zongheng complete control over our manufacturing processes. From raw plate plasma cutting, shell rolling, tube bundle assembly, automatic tube-to-tubesheet orbital welding, to non-destructive testing (NDT), everything is executed in-house.
This vertical integration yields significant benefits for our global partners:
Engineered to comply with local safety, environmental, and engineering codes across continents.
Authorized to manufacture pressure vessels compliant with the ASME Boiler and Pressure Vessel Code Section VIII Div 1.
Complies with the European Union's Pressure Equipment Directive (PED) and machinery safety regulations.
International standard quality management systems covering the design, production, and testing of concentration plants.
Possesses China's Category III Pressure Vessel Manufacturing License, ensuring compliance with strict domestic safety rules.
From a local machinery workshop to a globally recognized evaporation technology manufacturer.
Established as Yixing Yangxi Light Industrial Machinery Factory, covering 15 mu of land with 45 employees.
Obtained ISO9001 Quality Management System Certification to standardize our core design and manufacturing workflows.
Officially recognized as a Jiangsu Provincial High-Tech Enterprise, marking a significant milestone in our engineering capabilities.
Acquired the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for pressure vessels.
Authorized to use the ASME "U" Stamp. This certification marked our entry into high-end international industrial equipment markets.
Established a comprehensive quality assurance framework aligned with global EPC engineering practices.
Now employing over 120 personnel, including 3 senior engineers and 20+ support engineers. Our facility spans 54,000+ square meters, delivering customized process plants to partners worldwide.
Years of Professional Experience
Senior & Design Engineers
Total Factory Area (m²)
Dedicated Production Workshops (m²)
Key design considerations to specify before requesting a quote for custom industrial evaporators.
To design your system, we require details on: chemical composition, presence of solids (TSS/TDS), feed viscosity curve across temperatures, density, pH, fouling behavior, and boiling point elevation (BPE).
Define the utility profile at your installation site. Is live steam available, or is electricity more cost-effective (favoring MVR)? Do you have low-grade process waste heat sources to utilize?
Identify required design codes (ASME Section VIII, CE PED, GB150) and select appropriate construction materials. We work with stainless steels, duplex steels, titanium, and nickel alloys to match your chemical profile.
Expert engineering answers regarding mechanical vapor recompression, drying systems, and starch processing.
We warmly welcome friends from various industries, both domestic and international, to visit us for cooperation and mutual development!
Request a quoteGet to know our detailed contact information and discuss specifications with our technical engineering team.
View DetailsRefining cyclones, airflow dryers, and CE-certified process plants engineered for reliable industrial performance.
Zongheng