Thermal evaporation systems sit at the critical intersection of modern chemical engineering, bio-industrial processing, and global environmental mandates. As regulatory frameworks tighten regarding zero liquid discharge (ZLD) and carbon footprint minimization, conventional multi-effect evaporation configurations are rapidly being replaced by advanced thermodynamic cycles.
Techniques such as Mechanical Vapor Recompression (MVR) and multi-effect falling film evaporation are designed to optimize enthalpy conservation. By recycling the latent heat of secondary vapor, modern evaporation systems reduce live steam requirements by up to 90%, delivering exceptional operating cost reductions while meeting stringent global ESG targets.
Jiangsu Zongheng utilizes these advanced thermodynamics to support complex fluid separation, concentration, and purification requirements in food fermentation, chemical processing, starch refining, bio-ethanol distillation, and heavy wastewater treatment.
By integrating mechanical vapor recompression and falling film technologies, process operations see drastic utility drops:
Jiangsu Zongheng's MQG Airflow Dryer employs high-speed hot air to suspend and fluidize feed material. By utilizing impulse airflow generated from precisely varied tube diameters, it continuously tumbles particles while conveying them. This design ensures rapid, uniform, and efficient drying throughout the entire transportation process within the system.
It is widely applied in chemical processing, starch processing, and food starch manufacturing where rapid and consistent moisture reduction is crucial for preserving chemical integrity and raw material characteristics.
A falling film evaporator efficiently concentrates heat-sensitive liquids. The feed liquid forms a thin film flowing down heated vertical tubes, where it partially evaporates. Vapor generated flows parallel to the liquid, enhancing the process. It ensures a short residence time and low operating temperature, preserving product quality.
The system requires proper liquid distribution and complete surface wetting to prevent fouling and maintain high thermal efficiency and operational stability. Jiangsu Zongheng implements custom liquid distributors to eliminate dry tube spots and optimize heat transfer dynamics across the tube bundle.
Located in Zhoutie Town, Yixing City, on the shores of Taihu Lake, Jiangsu Zongheng is situated at the heart of China's premier industrial equipment manufacturing hub. This location offers unique supply chain advantages, providing direct access to specialized steel foundries, high-grade mechanical component suppliers, and skilled engineers.
By combining this robust local supply chain with our in-house engineering and production capabilities, we deliver cost-efficient, high-performance equipment. Additionally, our rigorous quality control processes ensure compliance with international industrial standards, including ASME, CE, and ISO certifications.
Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd (formerly Yixing Yangxi Light Industry Machinery Factory), founded in 1992, is a modern high-tech enterprise specializing in the manufacturing of concentration, drying, starch industry, alcohol DDGS, and Category III medium & low-pressure vessel equipment.
As a member of the China Starch and Alcohol Association, our products are widely used in food fermentation, alcohol production, petrochemical processing, pharmaceuticals, and environmental engineering. We combine decades of experience with advanced design software and state-of-the-art manufacturing processes to deliver custom systems for demanding processing environments worldwide.
Our facilities span over 54,000 square meters, with more than 22,000 square meters of production space. We employ a team of 120 professionals, including 3 senior engineers and over 20 engineers and assistant engineers.
Obtained international quality system certification (Certificate No.: 45021), establishing a complete quality assurance system aligned with international standards.
Acquired the ASME "U" Stamp authorization, marking our entry into design and manufacturing processes for global industrial sectors.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for pressure vessel manufacturing.
Officially recognized as a Jiangsu Provincial High-Tech Enterprise, reflecting our continuous investment in technological innovation.
Implemented standardized management systems and obtained our first ISO9001 quality management system certification.
Founded as Yixing Yangxi Light Industrial Machinery Factory, starting with a 15-mu facility and 45 employees.
Energy-efficient, high-performance evaporation solutions designed for industrial-scale concentration processes, including chemical wastewater, food fermentation products, and alcohol processing.
Specially engineered for processing heat-sensitive liquids. Features optimized liquid distributors, short residence times, and low operating temperatures to preserve product quality while ensuring high heat-transfer coefficients.
Specially designed for liquids with high fouling tendencies, high viscosity, or crystallization requirements. Uses high-velocity circulation pumps to prevent scaling on heat transfer surfaces.
Mechanical Vapor Recompression (MVR) systems compress secondary vapor to reuse its latent heat, significantly reducing live steam requirements and operating costs.
Designed to integrate multiple waste heat sources—including drying vapors, boiler flue gas, or flash steam—maximizing energy recovery and minimizing thermal emissions.
High-efficiency dewatering system for solid-containing materials. Designed to continuously press and extract liquid from fibrous solids, reducing downstream drying energy requirements.
Features a low-oxygen, high-safety drying design utilizing indirect steam heating. Ideal for bulk powders, granules, and agricultural residues like DDGS, starch, and gluten.
Suspends materials in high-velocity hot air within a drying duct. Features a variable-diameter design that creates turbulence, ensuring fast, uniform moisture removal.
Precision maize and grain processing machine designed to remove the germ intact, preserving kernel quality and maximizing oil extraction efficiency.
Specifically engineered for starch refining, concentration, and purification. High centrifugal separation efficiency removes impurities and soluble proteins.
Jiangsu Zongheng implements a comprehensive quality assurance system verified by leading global bodies. Our design and manufacturing systems conform strictly to:
Procuring a large-scale industrial thermal evaporation system requires careful evaluation of thermodynamic profiles, material selection, and process configurations. When requesting quotations from China manufacturers, we recommend providing the following design parameters:
Our Mechanical Vapor Recompression (MVR) systems generally achieve a COP range of 10 to 20. By compressing the secondary vapor, we increase its temperature and pressure, allowing it to be recycled as the heating source. This configuration consumes only 15 to 30 kWh of electricity per ton of evaporated water, eliminating the need for continuous raw steam supply during stable operations.
We mitigate fouling through two primary design features: precise design of the liquid distributor plates at the top of the tube bundle to ensure uniform wetting, and automated Clean-in-Place (CIP) systems that use target chemical flushes to remove deposits without requiring manual disassembly.
Yes. Jiangsu Zongheng holds the ASME "U" Stamp authorization, which we first obtained in 2012. Our engineering team, quality inspectors, and certified welders construct and test every pressure vessel in accordance with ASME Section VIII Division 1 guidelines, supplying full material test reports (MTRs) and documentation.
Depending on chloride levels, pH, and operating temperatures, we offer SS316L, duplex stainless steel (2205/2507), Titanium, and Hastelloy. This ensures long-term corrosion resistance in high-temperature, high-salinity applications like Zero Liquid Discharge (ZLD) installations.
Airflow Dryers (like our MQG design) use high-speed hot air to suspend and dry fine particles instantly during transport. In contrast, Tube Bundle Dryers (like our ZXG design) dry materials indirectly as they contact steam-heated tubes rotating inside a fixed shell, making them better suited for high-moisture bulk materials requiring longer drying times.
We welcome partners from all industrial sectors worldwide to cooperate with us. Get in touch with our engineering team for customized separation, concentration, and drying solutions.
Request a quoteLearn more about our manufacturing capabilities, engineering process, and past project details. We look forward to hearing from you.
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Zongheng
Jun 18, 2026