In the modern industrial processing sector, thermal separation and concentration are critical yet highly energy-intensive operations. Traditionally, multi-effect evaporation systems relied heavily on live steam consumption, contributing significantly to operational expenditures and carbon emissions. The global transition toward decarbonization, accelerated by frameworks such as the EU Green Deal and global Net-Zero initiatives, has positioned Mechanical Vapor Recompression (MVR) as the gold standard for industrial concentration.
MVR technology operates on a closed-loop thermodynamic cycle. By utilizing a mechanical compressor (either centrifugal or roots type), the system compresses the secondary vapor generated during evaporation. This compression increases both the pressure and temperature of the vapor, allowing it to be recycled back into the heating chest of the evaporator as the primary heating medium. Consequently, the requirement for fresh, live steam is virtually eliminated during steady-state operation, yielding energy savings of up to 90% compared to conventional thermal systems.
Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd. stands at the forefront of this technological shift. By engineering CE-certified MVR systems, we provide global process industries with high-performance, compliant, and reliable thermal separation solutions that align with strict environmental mandates and resource recovery targets.
Our Mechanical Vapor Recompression plants utilize high-efficiency centrifugal compressors to recycle latent heat. Designed for maximum thermal efficiency, these systems achieve specific energy consumption rates as low as 15-20 kWh per ton of water evaporated, drastically lowering operational costs.
Engineered specifically for heat-sensitive liquids, our falling film evaporators distribute feed liquid as a thin film down the inner walls of vertical tubes. This ensures extremely short residence times and minimal thermal degradation while maintaining high heat transfer coefficients.
For high-fouling, high-viscosity, or crystallizing solutions, our forced circulation evaporators utilize robust recirculation pumps to maintain high fluid velocities across the heat exchanger tubes, preventing scaling and ensuring continuous, stable operation.
Designed for safe, low-oxygen, indirect steam drying of bulk materials. The stationary housing and rotating tube bundle design optimize heat transfer area per unit volume, making it ideal for processing starch, gluten, and DDGS.
Utilizing high-speed hot air to suspend and fluidize materials, the MQG dryer features varying tube diameters to create impulse airflow. This tumbles particles continuously during transport, achieving rapid and highly uniform drying.
In wet corn milling and starch processing plants, our integrated systems combine Degerming Mills, Starch Washing Cyclones, and Falling Film Evaporators. The MVR system concentrates steepwater and sweetwater streams efficiently, while the Single Screw Press and Tube Bundle Dryers dewater and dry fiber and germ fractions, maximizing byproduct value.
For chemical, pharmaceutical, and petrochemical facilities facing strict environmental discharge regulations, our MVR Forced Circulation Evaporators serve as the core technology for Zero Liquid Discharge (ZLD) systems. They concentrate highly saline and organic-laden effluents to near-saturation, facilitating salt crystallization and water reuse.
In modern alcohol fermentation plants, energy integration is key to profitability. Our Waste Heat Evaporators capture low-grade thermal energy from drying vapors or distillation columns to pre-concentrate thin stillage. The concentrate is then blended with wet cake and dried in our ZXG Tube Bundle Dryers to produce high-quality DDGS feed.
Located in Yixing City, Jiangsu Province—the heart of China's industrial machinery and environmental protection equipment cluster—Jiangsu Zongheng leverages a highly integrated local supply chain. This localized ecosystem allows us to source premium raw materials, including high-grade stainless steels (304, 316L), duplex alloys (2205, 2507), and titanium (TA1, TA2), with minimal lead times and competitive pricing.
Our 54,000-square-meter facility, featuring over 22,000 square meters of specialized production workshops, is equipped with advanced fabrication machinery. This includes automated plasma welding systems, large-scale CNC rolling machines, and dedicated cleanrooms for titanium and alloy fabrication. By keeping critical processes—such as tube-to-tubesheet welding, heat treatment, and non-destructive testing (NDT)—in-house, we maintain absolute control over quality while accelerating project delivery timelines for our global clientele.
We are integrating advanced PLC and SCADA systems with predictive AI models. By continuously monitoring compressor vibration, temperature profiles, and heat transfer coefficients, our systems can predict fouling events and optimize cleaning-in-place (CIP) schedules, minimizing downtime.
Our engineering team is developing hybrid systems that couple MVR evaporators with multi-effect distillation and waste heat recovery loops. This allows plants to utilize fluctuating green electricity alongside low-grade waste steam, maximizing overall thermodynamic efficiency.
To combat increasingly corrosive process fluids in the chemical and recycling industries, we are expanding our research into advanced surface treatments and specialized alloy claddings, extending the service life of heat exchanger tubes in extreme environments.
Established as Yixing Yangxi Light Industrial Machinery Factory, focusing on basic concentration and drying equipment with a team of 45 employees.
Obtained ISO9001 Quality Management System Certification, establishing a standardized framework for design, manufacturing, and service.
Recognized as a Jiangsu Provincial High-Tech Enterprise, reflecting our commitment to research, development, and technological innovation.
Acquired the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for pressure vessel fabrication.
Authorized to apply the ASME "U" Stamp, marking our entry into the high-end global industrial equipment market.
Obtained International Quality System Certification (Certificate No.: 45021), aligning our quality assurance systems with global standards.
Operating from a 54,000 m² facility with 120 employees, including 3 senior engineers and over 20 engineers, delivering advanced CE-certified MVR systems worldwide.
Exporting industrial process systems to Europe, North America, and Southeast Asia requires strict adherence to international safety and quality standards. Jiangsu Zongheng design and manufacturing processes comply with the European Union's Pressure Equipment Directive (PED) 2014/68/EU and the Machinery Directive 2006/42/EC, enabling us to supply fully CE-certified MVR systems.
Additionally, our ASME "U" Stamp authorization ensures that all pressure vessels, vapor separators, and heat exchangers meet the stringent requirements of the American Society of Mechanical Engineers. We provide comprehensive technical documentation, including finite element analysis (FEA) reports, material test certificates (MTRs), welding procedure specifications (WPS), and non-destructive testing (NDT) records.
To support our global installations, we offer localized engineering services. This includes pre-shipment assembly inspection, supervised installation, commissioning by experienced process engineers, and remote monitoring support to assist local operators in maintaining optimal system performance.
Contact our engineering team today to request a detailed process simulation, energy balance calculation, or customized equipment quote.
Zongheng