High-Performance Industrial Concentration, Thermal Separation, and Sustainable MVR Solutions Built to ASME & CE Standards
Engineered for high thermal efficiency, durability, and compliance with dynamic global industrial standards.
Specially designed to concentrate thermal-sensitive fluids under vacuum, preventing degradation and ensuring maximum recovery of solvents.
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Rapid flash drying systems utilizing high-velocity air streams for starch, organic compounds, and agricultural processing residuals.
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Eco-designed multi-effect evaporation and vapor recompression systems configured for strict European and Global energy directives.
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Optimized for high-viscosity media, scale-forming liquids, and crystallization processes in hazardous chemical industries.
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High-precision corn germ separator ensuring pristine wet-milling process integrity with optimized starch yields.
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Engineered for large-capacity concentration duties, presenting high heat transmission and minimal thermal degradation footprints.
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Excellent for crystallizing and high-solids waste concentration. Resists fouling with high liquid speed in heat-exchange tubes.
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Advanced heat integration systems utilizing secondary steam or exhaust gases to drive low-cost evaporation cycles.
Read MoreIndustrial thermal evaporation is a key process for separation and concentration across many sectors, including pharmaceutical synthesis, industrial wastewater management, and food processing. The process works by applying thermal energy to vaporize the volatile solvent—usually water—leaving behind a concentrated solution or slurry.
Modern design focuses on reducing energy consumption per ton of water evaporated. Standard multi-effect evaporators achieve this by using the vapor from one stage to heat the next stage, which operates at a lower boiling point. The performance of these systems is determined by matching the evaporation process to the product's thermal sensitivity, fouling potential, and viscosity.
Traditional steam-driven evaporators require ongoing thermal inputs. In contrast, Mechanical Vapor Recompression (MVR) technology recycles latent heat. A mechanical compressor increases the temperature and pressure of the generated vapor, allowing it to be used as the heating steam for the same effect.
This process reduces the demand for external fresh steam. While traditional triple-effect evaporators consume about 0.35 to 0.4 tons of steam per ton of water evaporated, an MVR system requires electricity to drive the compressor, using only 15 to 25 kWh per ton of water. This significantly lowers operating costs and reduces carbon emissions for chemical and manufacturing plants.
Jiangsu Zongheng, located in Yixing, China—a hub for environmental and industrial machinery—leverages a comprehensive industrial supply chain. This enables the sourcing of certified raw materials, including titanium gr.2, duplex steels (2205/2507), and high-grade stainless steels (316L/304), at stable prices.
Our manufacturing capacity is supported by advanced testing facilities and large assembly workshops. This allows us to offer custom-engineered process packages that are cost-effective compared to European and North American alternatives. The integration of design, fabrication, stress relief, and non-destructive testing (NDT) in one location ensures quick delivery and consistent quality.
The industrial evaporation market is moving toward smart, integrated, and zero-emission solutions. Key trends include:
Evaluating standard technologies to help process engineers select the appropriate equipment.
| Evaporator Type | Typical Applications | Steam Consumption (per ton H₂O) | Power Consumption (per ton H₂O) | Key Strengths | Limitations |
|---|---|---|---|---|---|
| Falling Film Evaporator | Heat-sensitive liquids, low-viscosity juices, organic solvents, starch slop. | 0.2 - 0.35 tons (Multi-effect) | 5 - 10 kWh | High Heat Transfer Low residence time. | Sensitive to tube fouling. |
| Forced Circulation Evaporator | High-viscosity liquids, salting liquids, crystallization, ZLD systems. | 0.25 - 0.4 tons (Multi-effect) | 20 - 45 kWh | Fouling Resistant High velocity. | Higher power consumption. |
| MVR Evaporator | Starch wastewater, chemical processing, concentration of salts. | 0 - 0.05 tons (Startup only) | 15 - 28 kWh | Lowest OpEx Eco-friendly. | Higher initial capital cost. |
| Waste Heat Evaporator | DDGS, starch refining, flue-gas drying vapors utilization. | Uses waste/secondary heat source | 4 - 8 kWh | Energy Recovery Low utility cost. | Dependent on waste heat stability. |
We provide full process design services rather than just selling standalone equipment. Our engineering packages include process simulation using software like Aspen Plus, structural analysis, control system design, piping design, installation supervision, and commissioning support.
For large starch plants and grain processing sites, we integrate falling film evaporators, waste heat evaporators, single screw presses, and tube bundle dryers into a single system. This setup captures waste energy from drying stages and redirects it to the liquid concentration stage, reducing the overall carbon footprint of the plant.
Our systems are designed for use in diverse operating conditions worldwide:
A leading manufacturer of industrial concentration and drying equipment, established in 1992.
Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd. (formerly Yixing Yangxi Light Industry Machinery Factory) is based in Zhoutie Town, Yixing City, on the shores of Taihu Lake. Since 1992, the company has expanded to over 54,000 square meters, with a production workshop area exceeding 22,000 square meters.
We are a high-tech enterprise specializing in concentration, drying, starch processing, alcohol DDGS systems, and Category III medium and low-pressure vessels. As a member of the China Starch and Alcohol Association, our machinery is used in food fermentation, chemical processing, pharmaceuticals, environmental protection, and petrochemical refining.
A closer look at the design details and operational features of our core process systems.
A falling film evaporator concentrates heat-sensitive liquids by distributing the feed fluid to form a thin film flowing down the inside of heated vertical tubes. Vapor flows parallel to the liquid, increasing heat transfer rates. This design ensures short residence times and low operating temperatures, protecting the product's qualities. Proper distribution and surface wetting are required to prevent fouling and maintain stable operation.
Jiangsu Zongheng's MQG Airflow Dryer uses high-speed hot air to suspend and fluidize damp solids. By using varied tube diameters to generate impulse airflow, it continuously tumbles and dries the particles as they are conveyed through the system. This design provides rapid, uniform moisture removal during transport, making it suitable for starches and protein powders.
The ZXG Tube Bundle Dryer is designed for safe, low-oxygen drying using indirect steam. The material contact surfaces are continuously heated by internal steam-fed tubes while the bundle rotates. The system operating temperature is controlled to prevent oxidation, dust explosions, or thermal degradation of bulk solids, such as corn gluten or oilseeds.
Purchasing large-scale industrial evaporation systems involves evaluating several technical criteria. Procurement managers should consider the following factors:
Answers to common technical, design, and regulatory questions about industrial evaporation systems.
Reliable process equipment built to support agricultural, chemical, and industrial processing operations.
Efficient solid-liquid separation equipment for starches, fibrous materials, and organic waste dewatering applications.
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Features indirect steam heating within a low-oxygen environment to safely dry temperature-sensitive organic materials.
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Specifically designed to concentrate thermal-sensitive fluids under vacuum, preventing degradation and ensuring maximum recovery of solvents.
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YDX multi-stage hydrocyclone systems configured for separation, washing, and concentration of starch suspensions.
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High-velocity recirculating loop evaporators built to process high-salinity industrial wastewater and chemical fluids.
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Engineered for wet corn milling, isolating the starch kernel from the germ to improve final product yield.
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Constructed with high-strength alloys for reliable dewatering of fibrous materials, starches, and pulp residues.
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Provides safe drying of starch and organic residues through indirect contact, keeping emissions low and moisture levels uniform.
Read MoreOur facilities and processes are audited and certified to meet international engineering and pressure equipment standards.
Pressure Vessel License
ASME Standard U-Stamp
ISO9001 Quality System
CE Pressure Directive
Need details on energy efficiency calculations or system dimensioning? Get in touch with our team in Yixing to discuss your project requirements.
Find our phone numbers, factory address, and email details to coordinate a technical consultation or a site visit.
Zongheng