Engineered for heavy-duty process industries requiring maximum thermal efficiency and low operational costs.
Designed to recapture low-grade thermal discharge from flash chambers, dryers, and stack gases, optimizing the overall utility balance of starch and food processing plants.
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A heavy-duty mechanical dewatering press engineered to process solid-containing slurries, fibrous materials, and distillery spent grains before the thermal drying stages.
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Customized multiple-effect waste heat recovery configuration designed specifically for high-fouling materials like corn steep liquor (CSL) and bio-fermentation waste streams.
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A cohesive family of falling film, rising film, and forced circulation evaporation systems engineered to minimize specific steam consumption across diverse process fields.
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Compliant with European Directive requirements, this forced circulation system is optimized for high viscosity concentration, crystallization, and severe salting applications.
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Mechanical Vapor Recompression plants built to cycle secondary steam back into the process heating loop, slashing utility costs by up to 90% relative to single-effect operations.
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Robust industrial crystalizer units incorporating advanced hydrodynamic designs to prevent heat-exchanger scale build-up under high solids loadings.
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An essential high-efficiency hydrocyclone unit utilizing centrifugal separation for refined starch washing, concentration, protein removal, and purification.
Read More →In the modern chemical processing, starch refining, bio-fermentation, and zero-liquid-discharge (ZLD) wastewater industries, evaporation stands as one of the most energy-intensive process units. Selecting an experienced technical manufacturer is vital to balance thermal performance, capital expenditures, and plant reliability.
Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd. (formerly Yixing Yangxi Light Industry Machinery Factory), established in 1992, has dedicated over 30 years to pioneering industrial heat transfer technologies. As an ASME "U" stamp authorized enterprise and a member of the China Starch and Alcohol Association, we construct heavy industrial plant machinery designed to minimize specific steam consumption (SSC) while meeting stringent pressure vessel compliance regulations worldwide.
Traditional multi-effect evaporators consume immense amounts of fresh live steam (often requiring 0.2 to 0.4 tons of steam per ton of water evaporated). An MVR system recycles the latent heat of secondary vapor through mechanical compression, requiring only a fraction of electrical power (typically 15 to 25 kWh/t of water evaporated) to drive the compressor, translating to a reduction in primary thermal energy consumption of up to 90%.
An analytical breakdown of compressor configurations, fluid dynamics, and automated thermal integration.
At the core of an MVR plant is the vapor compressor. Jiangsu Zongheng integrates high-performance centrifugal blowers and high-speed turbocompressors equipped with variable frequency drives (VFDs). Operating points are precisely calculated using specialized process simulation software to map isentropic efficiency, ensuring the compressor matches the exact boiling point elevation (BPE) of the solution.
Preventing dry-wall scaling in falling film evaporators is critical. Our proprietary liquid distribution system relies on precision-calibrated overflow cups and perforated plates. This ensures complete wetting of the inner tube walls, creating a uniform falling film that maintains high heat transfer coefficients (U-values) and maximizes run times between CIP (Clean-in-Place) cycles.
Our plants are equipped with fully integrated DCS/PLC networks using Siemens or Rockwell hardware, paired with advanced SCADA systems. Real-time mass and energy balance calculations dynamically adjust the compressor speed, feed rates, discharge concentration, and vacuum levels to prevent cavitation, compressor surge, and process upsets.
| Parameter Comparison | MVR Evaporation Plant | 3-Effect Evaporator (MEE) | 5-Effect Evaporator (MEE) |
|---|---|---|---|
| Primary Heat Source | Electricity (Vapor Compression) | Live Boiler Steam | Live Boiler Steam |
| Specific Steam Consumption (t/t water) | 0.02 - 0.05 (Startup only) | 0.35 - 0.40 | 0.20 - 0.23 |
| Specific Power Consumption (kWh/t water) | 15 - 25 | 2 - 4 | 3 - 5 |
| Cooling Water Consumption (t/t water) | Miniscule (Only vent condenser) | 0.8 - 1.2 | 0.5 - 0.7 |
| Operating Carbon Footprint | Very Low (Depends on Grid Source) | High (Fossil fuel combustion) | Medium-High |
| Typical ROI (Payback Period) | 1.2 - 2.5 Years | Reference baseline | 2.0 - 3.5 Years |
Custom thermal processing packages designed to integrate with plant utility architectures across key sectors.
In industrial starch production, steep liquor concentration requires meticulous design. We coordinate the use of our YDX Starch Washing Cyclone with multi-effect falling film waste heat evaporators. This layout recycles dryer vapors to concentrate corn steep liquor (CSL), saving enormous energy while producing high-grade coproduct inputs.
Distiller’s Dried Grains with Solubles (DDGS) plants require a combined dewatering and drying solution. We bundle high-efficiency single screw presses for structural dewatering with steam-saving ZXG Tube Bundle Dryers and waste heat evaporators to recover spent wash solubles, maximizing protein output.
High-salinity chemical wastewater containing sodium chloride, sodium sulfate, or mixed salts requires heavy-duty crystallizers. Our forced circulation MVR evaporation plants feature corrosion-resistant alloys (Titanium Gr. 2, Hastelloy C276, and Duplex SS 2205) designed to handle solid precipitation and avoid severe scaling.
In-depth performance profiles of Jiangsu Zongheng's key proprietary systems.
Jiangsu Zongheng's MQG Airflow Dryer employs high-speed hot air to suspend and fluidize raw damp materials. By utilizing impulse airflow generated from precisely varied tube diameters, it continuously tumbles the particles while conveying them. This design ensures rapid, uniform, and highly efficient drying throughout the entire transportation process within the system.
Our airflow dryers are widely deployed in starch processing, starch derivative production, and chemical processing plants, featuring tight integration with waste heat recovery loops to capture venting thermal energy for upstream preheating stages.
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 precision distribution heads, laser-welded tube sheets, and automated cleaning networks to assure continuous industrial operation under stringent regulations.
Operating a 54,000+ square meter state-of-the-art production facility in Zhoutie Town, Yixing City (the heart of China's light industrial machinery cluster), we harness localized supply chain integration. From raw plate metal preparation to automated orbital welding and cleanroom tube-bundle assembly, every process step is conducted under strict ISO 9001 supervision.
This localized industrial concentration grants us immediate access to raw materials (high-grade stainless steel plates, tubes, forged flanges) and specialized components (precision valves, sensors, electrical components). As a result, we bypass shipping delays and maintain complete cost control, passing those savings directly to our global partners.
Stamp Authorized
Pressure Vessel Cert.
Quality System Certified
Trace the technological evolution of Jiangsu Zongheng from 1992 to present day.
The company covers a total area of over 54,000 square meters, with production workshop space exceeding 22,000 square meters. It currently employs 3 senior engineers and over 20 engineers and assistant engineers, with a total staff of 120 people.
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 the company's entry into a new phase of international development and high-pressure vessel manufacturing.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for low and medium pressure vessels.
Recognized as a Jiangsu Provincial High-Tech Enterprise, celebrating our dedication to thermal engineering R&D.
The company took the lead in obtaining ISO9001, setting structural guidelines for corporate management and workshop operations.
Jiangsu Zongheng, formerly known as Yixing Yangxi Light Industrial Machinery Factory, was established. The original facility covered a total area of approximately 15 mu and employed 45 staff.
Our machines are integrated into processing systems worldwide to support structural separation, concentration, and drying.
Procuring capital evaporation plants from China requires careful verification of structural engineering qualifications. Jiangsu Zongheng ensures smooth international deployment through the following strict quality frameworks:
In-depth answers addressing design parameters, thermal integration, and sourcing details.
The evaporator absorbs heat to vaporize media, while the condenser releases heat to liquefy vapor; the two perform opposite cooling and heating functions. Operating under low pressure, the evaporator generates cold energy and concentrates solutions. By combining the thermodynamic principles of boiling point elevation control and latent heat recovery, modern plant designs optimize total operating costs.
A specialized collection of cyclones, falling film plant variations, and high-efficiency mechanical dryers.
Custom falling film thermal evaporation systems designed specifically to handle delicate, heat-sensitive liquid matrices under deep vacuum conditions.
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Features low operational temperature limits, minimal fluid holdup volumes, and uniform distribution systems to guarantee absolute product stability.
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Engineered for wastewater recovery operations, this system uses waste heat to dramatically decrease primary utility expenses.
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Multistage cyclone system optimized to wash starch slurries, remove solubles, and concentrate refined corn or potato starch.
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A heavy duty falling film assembly optimized for processing food, dairy, and organic chemical feedstocks under sanitary parameters.
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A high-tech mechanical vapor recompression package integrated with centralized automation for continuous processing applications.
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Indirect steam-heated tube bundle dryer designed for low-oxygen, safe processing of granular corn, starch fiber, and light chemical cakes.
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Proprietary configuration featuring optimized blower speed algorithms, achieving excellent energy savings across industrial concentration streams.
Read More →Partner with China's premier ASME-certified industrial evaporation manufacturer. We welcome technical inquiries from engineering firms and plant owners worldwide.
Zongheng
