Global decarbonization initiatives push processing plants to replace standard multi-effect evaporators with Mechanical Vapor Recompression (MVR) technology. MVR systems compress secondary vapor, utilizing electrical energy to upgrade thermal values and recycle latent heat back to the evaporation chambers, yielding up to a 90% reduction in operating steam requirements. This shift represents a transition toward green-field low-emission production lines.
Processing complex agro-industrial waste streams like corn steep liquors, bio-ethanol stillage (DDGS), and starch wastewater demands custom multi-stage solutions. Modern plant designs rely on high-efficiency mechanical dewatering (such as single screw presses) before introducing wet cake materials into indirect steam tube bundle dryers, dramatically slashing overall carbon intensity and decreasing operational expenses (OPEX).
Zero Liquid Discharge (ZLD) mandates have transformed industrial wastewater management. Forced circulation crystallizers and falling film evaporators are increasingly paired with chemical and bio-extraction equipment. This combination isolates solid salts, recovers pure condensate for production reuse, and avoids chemical runoff in compliance with rigorous environmental standards across North America, Europe, and Asia.
For engineering, procurement, and construction (EPC) firms, purchasing large-scale processing hardware from China requires evaluating compliance, mechanical reliability, and structural execution. Critical procurement checkpoints include:
Jiangsu Zongheng resolves these operational uncertainties. Operating since 1992, the company engineers bespoke systems that seamlessly integrate with upstream and downstream processing machinery.
Jiangsu Zongheng's MQG Airflow Dryer utilizes high-speed hot air to suspend and fluidize 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, making it suitable for high-throughput starch and organic crystal processing.
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.
Designed for scaling, crystal-precipitating, and highly viscous liquors. Liquid is pumped at high velocities through heat exchanger tubes to suppress boiling at the heat transfer boundary. Boiling occurs only when the liquid enters the lower pressure flash chamber, effectively preventing fouling on the tube surfaces and enabling stable, long-cycle plant operations.
Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd (formerly Yixing Yangxi Light Industry Machinery Factory), founded in 1992, is located in Zhoutie Town, Yixing City, on the shores of the beautiful Taihu Lake. The company covers an area of over 54,000 square meters, with a production workshop area of over 22,000 square meters.
Jiangsu Zongheng 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. It is currently a member enterprise of the China Starch and Alcohol Association. Its products are widely used in industries such as food fermentation, alcohol, chemical, pharmaceutical, environmental protection, and petrochemical.
Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd, formerly known as Yixing Yangxi Light Industrial Machinery Factory, was established. The company covered a total area of approximately 15 mu and employed 45 staff members.
The company took the lead in obtaining ISO9001 quality system certification, standardizing manufacturing processes and quality controls.
Awarded the designation of Jiangsu Provincial High-Tech Enterprise, acknowledging the company's proprietary thermal designs and engineering patents.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42), enabling the production of Class-III pressure vessels.
Acquired the ASME "U" Stamp authorization, marking the company's entry into high-end international engineering markets.
Obtained International Quality System Certification (Certificate No.: 45021), establishing a complete quality assurance system aligned with international standards.
Currently, the company's total site spans over 54,000 square meters, with workshops exceeding 22,000 square meters. The staff includes 3 senior engineers and 20+ engineers and assistant engineers, totaling 120 professionals.
Developing cyber-physical systems for large evaporator stations. Utilizing IoT sensors to monitor thermal efficiency, dynamic boiling point elevation, and scaling levels, allowing automatic changes to feed rates and steam distribution to maximize uptime.
Integrating heat pumps and multi-stage waste heat condensers into drying systems. Capturing high-volume low-temperature vapor exits from airflow dryers to pre-heat wet feedstock, reducing primary steam requirements.
Exploring high-durability surface coatings and alternative alloys (such as Hastelloy and duplex variations) to process highly corrosive chemical streams, extending equipment lifespan and reducing maintenance cycles.
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