In modern industrial processes, the concentration, crystallization, and recovery of dissolved materials require highly robust and energy-efficient thermal separation solutions. As a premier Chinese manufacturer and supplier, Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd (formerly Yixing Yangxi Light Industry Machinery Factory) designs, manufactures, and commissions state-of-the-art evaporator devices. Our portfolio covers everything from complex Mechanical Vapor Recompression (MVR) systems and multi-effect falling film evaporators to high-performance dewatering screw presses, tube bundle dryers, and starch-refining cyclones.
Operating out of our advanced 54,000 square meter facility, we combine over three decades of manufacturing experience with cutting-edge engineering processes. Backed by key certifications like the ASME "U" Stamp, CE compliance, and China's Special Equipment Manufacturing License (TS2232C42), we supply custom-engineered solutions worldwide. These systems serve crucial applications in food fermentation, bio-ethanol production, starch processing, chemical production, pharmaceutical industries, and zero-liquid-discharge (ZLD) environmental management.
Explore our high-performance industrial evaporators and processing machinery, manufactured to strict ASME and CE standards.
Zongheng provides energy-efficient, high-performance evaporation solutions configured for complex process designs.
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Mechanical Vapor Recompression (MVR) plants offer significant operational savings by reusing latent heat of vapor.
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Highly efficient hot air drying systems designed for instant moisture reduction in granular and powder materials.
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Multi-stage cyclone systems engineered to wash, concentrate, and purify starch slurries with high precision.
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Advanced evaporator configurations engineered to optimize thermal transfer coefficients and minimize footprint.
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Excellent for heat-sensitive liquids, utilizing gravity-driven film evaporation to protect product integrity.
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Specifically designed to handle scaling and high-viscosity fluids with robust high-velocity recirculation pump configurations.
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Harness low-grade thermal waste from drying vapors or exhaust streams to drive evaporation and cut costs.
Read MoreOptimizing processing plants for global resource efficiency, carbon neutrality, and energy transition initiatives.
In the wake of worldwide net-zero emissions mandates, industrial manufacturing sectors face mounting pressure to reduce energy consumption and manage processing effluents. Thermal evaporation, traditionally a steam-intensive process, has evolved into a key arena for energy saving. Today, industrial operations are moving away from traditional, coal-fired multiple-effect steam evaporators toward integrated, low-carbon technologies like Mechanical Vapor Recompression (MVR) and waste-heat recovery systems.
These advanced systems solve crucial challenges across key sectors:
"Thermal efficiency is no longer just an operational metric—it is a compliance necessity. Modern industrial operations require custom-engineered heat exchange equipment that fits seamlessly into existing process integration frameworks."
By using advanced thermal designs, high-efficiency liquid distributors, and smart control loops, Jiangsu Zongheng assists processing plants in reducing their steam consumption by up to 90% when migrating to MVR evaporation solutions. This results in direct savings in operating costs and a significantly lower carbon footprint.
An engineering deep-dive into how we solve concentration and separation challenges.
Ideal for heat-sensitive liquids with low viscosity. The feed liquid is distributed uniformly across the inner surfaces of vertical tubes, flowing down as a thin film. This ensures very short residence times, low operating temperature differences under vacuum, and excellent heat transfer coefficients, preventing thermal degradation of organic liquids.
Engineered for high-viscosity, scaling, and crystallizing liquids. Large axial flow pumps force the liquid through the heat exchanger tubes at high velocities (typically 2-3 m/s). This suppresses boiling inside the tubes, preventing scaling and fouling on the heat exchange surface. Flashing and crystallization take place inside the separator vessel.
Utilizes a centrifugal fan or roots compressor to compress the exhaust vapors from the evaporator shell. This process raises the vapor's pressure, temperature, and enthalpy, allowing it to be recycled as the heating medium for the same effect. It eliminates the need for fresh steam during steady-state operation, reducing energy costs.
Selecting the right technological pathway requires analyzing fluid properties, scaling tendencies, utilities cost, and footprint limitations. The table below outlines typical operating characteristics of each technology:
| Parameters | Falling Film Evaporation | Forced Circulation Evaporation | MVR Evaporation Plant |
|---|---|---|---|
| Primary Application | Heat-sensitive, low-viscosity liquids (Starch, glucose, fruit juices, dairy). | High-salinity effluents, crystallizing solutions, wastewater. | Continuous industrial concentration, wastewater recovery. |
| Steam Consumption | Moderate (0.2 - 0.35 t steam per t of evaporated water). | High (0.25 - 0.4 t steam per t of evaporated water). | Extremely low (0.01 - 0.05 t steam per t of evaporated water). |
| Electrical Demand | Low (10 - 15 kWh per ton evaporated). | Moderate (15 - 30 kWh per ton evaporated). | Moderate to High (30 - 60 kWh per ton evaporated). |
| Fouling Resistance | Low (Prone to fouling if dry spots develop). | Excellent (High tube velocity prevents buildup). | Dependent on the configured evaporator type. |
| Capital Expense (CAPEX) | Baseline | Baseline + 20% | Baseline + 60% (High ROI via energy savings). |
Beyond thermal concentration, downstream dewatering and drying are critical to finalizing product moisture levels, recovering solids, and processing materials for storage or distribution. Jiangsu Zongheng manufactures dedicated separation and drying equipment engineered to work in tandem with our evaporation loops:
For agricultural and food processing industries, we build specialized equipment to optimize yields and product purity:
Over 30 years of commitment to quality, engineering progress, and international design standards.
Founded as Yixing Yangxi Light Industrial Machinery Factory in Zhoutie Town, Yixing City. Focused on custom fabrication for local light industries with 45 employees and 15 mu of land.
Established a formal quality assurance framework by obtaining the ISO9001 certification, standardizing manufacturing processes and material traceability.
Recognized as a Jiangsu Provincial High-Tech Enterprise, reflecting our investments in design, manufacturing technology, and mechanical engineering.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for manufacturing Category I, II, & III pressure vessels.
Secured the ASME "U" Stamp authorization, permitting the design, fabrication, inspection, and testing of pressure vessels conforming to international ASME Code Section VIII Division 1.
Achieved upgraded international quality system certification (Certificate No.: 45021), validating our quality assurance program for global supply chains.
Operating a 54,000+ sqm manufacturing base, employing over 120 staff including 3 senior engineers and 20+ specialized engineers. Serving clients globally with energy-efficient systems.
Ensuring operational safety, environmental compliance, and reliable engineering support across global jurisdictions.
Deploying heavy industrial equipment requires strict adherence to regional safety codes, environmental laws, and structural standards. Jiangsu Zongheng works with global engineering firms and plant owners to deliver compliance-ready systems that meet local requirements:
For projects in North and South America, our design engineers size and build shell-and-tube heat exchangers, vapor separators, and flash vessels strictly in accordance with ASME Section VIII Div 1. This guarantees structural integrity and smooth local boiler inspector sign-offs.
For installations in the European Economic Area, we provide CE-marked plants that comply with the Pressure Equipment Directive (PED 2014/68/EU), Machinery Directive, and low-voltage directives, assuring safety and seamless import processing.
We provide full documentation, material test reports (MTRs), welding procedure specifications (WPS/PQR), and automation control logics compatible with major DCS platforms (DeltaV, Siemens PCS7, Rockwell) for easy site integration.
We configure each plant configuration for site-specific conditions, such as local cooling water temperatures, elevations, electrical grids, and hazardous zone ratings (ATEX/IECEx). This detailed engineering approach reduces installation times and ensures reliable operation from day one.
Technical answers to key design and implementation questions.
Partner with our experienced engineering team to design, build, and optimize your process separation plant.
Discuss details with our thermal process engineers. We provide heat balance calculations, material selections, and system layouts tailored to your project requirements.
Arrange a tour of our 54,000 m² ASME-authorized workshop in Yixing, China. Inspect our manufacturing systems, welding processes, and quality control setups firsthand.
Browse our complete range of certified falling film, forced circulation, MVR plants, and processing equipment.
Fully compliant with EU Pressure Equipment Directives for high-safety operations.
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Custom configurations designed to achieve optimal concentration rates and thermal stability.
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Optimized industrial designs that lower operational costs and improve reliability.
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A reliable solution for high-salinity and high-viscosity wastewater treatment.
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Designed with uniform distribution plates to optimize heat transfer efficiency.
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Provides efficient starch refining, gluten separation, and impurity removal.
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Heavy-duty configurations designed to maintain uptime in challenging industrial processes.
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Mechanical dewatering systems that reduce thermal drying load and lower overall energy use.
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