When engineers discuss Evaporation Film in heavy industrial processes, they refer to the highly delicate, thin liquid boundary layer formed inside falling film, scraped surface, or wiped film evaporators. Establishing a continuous, uniform, and turbulence-optimized evaporation film is critical for maximizing heat transfer coefficients while protecting thermally sensitive substrates from degradation.
In falling film systems, for instance, liquid is fed to the top of vertical tubes where proprietary distribution plates ensure an even gravity-fed film descends along the interior tube walls. As steam or heating media heats the tube from the outside, the inner liquid film rapidly boils, vaporizing solvent particles. This counter- or co-current vapor shear stream aids in pulling the remaining film down, maintaining thin-film velocity and avoiding localized dry spots that induce severe scaling and process fouling.
Modern zero-liquid discharge (ZLD) plants demand radical sustainability. Rather than venting high-enthalpy waste vapor, Jiangsu Zongheng MVR (Mechanical Vapor Recompression) plants capture the evaporated solvent vapor, pass it through a high-efficiency mechanical compressor to boost its pressure and temperature, and re-feed it back to the heating chamber as a clean energy source. This closed-loop configuration slashes fresh steam requirements by up to 90%, offering rapid operational payback for global heavy processors.
Jiangsu Zongheng's MQG Airflow Dryer employs high-speed hot air to suspend and fluidize the material. By utilizing impulse airflow generated from precisely varied tube diameters, it continuously tumbles the particles while conveying them. This design ensures rapid, uniform, and efficient drying throughout the entire transportation process within the system.
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.
Zongheng provides energy-efficient, high-performance evaporation solutions including Falling Film, Forced Circulation, Waste Heat, and state-of-the-art MVR designs.
Engineered for continuous mechanical dewatering of highly fibrous slurries, starches, distiller's spent grains (DDGS), and chemical waste sludges prior to thermal drying.
Indirect steam heated dryers running under low oxygen atmosphere, safeguarding vulnerable materials from oxidization while ensuring extreme heat energy containment.
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.
As a modern high-tech enterprise, we specialize in the manufacturing of concentration, drying, starch industry, alcohol DDGS, and Category III medium & low-pressure vessel equipment. We are a member enterprise of the China Starch and Alcohol Association, and our custom process engineering systems are widely deployed in food fermentation, bio-alcohol, chemical wastewater, pharmaceutical, and petrochemical operations globally.
The company covers a total area of over 54,000 square meters, with workshop space exceeding 22,000 square meters. It employs 3 senior engineers and over 20 engineers, with a total staff of 120 people.
Obtained International quality system certification (Certificate No.: 45021), establishing a complete quality assurance system aligned with modern manufacturing and fabrication norms.
Acquired the prestigious ASME "U" Stamp authorization, validating the company's welding and QA standards for heavy-duty pressurized process equipment export.
Obtained the official Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42) for boilers and pressure vessels.
Awarded the status of "Jiangsu Provincial High-Tech Enterprise", establishing continuous public-private partnership research into industrial thermal recovery.
Took the lead in the regional manufacturing industry by securing the ISO9001 Quality Management System certification for concentration and drying technologies.
Jiangsu Zongheng, formerly known as Yixing Yangxi Light Industrial Machinery Factory, was established. The original facility covered 15 mu of land with 45 dedicated staff.
Global manufacturing demands a balancing act between strict capital expenditure limits (CapEx) and long-term equipment reliability. As a major industrial manufacturing cluster, Yixing in Jiangsu Province houses the world's most concentrated ecosystem of pressure vessel designers, welding technicians, and stainless-steel distributors. Procurement through a tier-1 supplier like Jiangsu Zongheng offers structural advantages:
1. Specialized Metallurgical Supply Chains: Evaporators treating high-chloride corn slurries or acidic chemical effluent require premium alloys like 2205 Duplex Stainless Steel, Titanium, or Hastelloy. Our local raw material access, combined with volume purchasing agreements, ensures we obtain these specialty alloys at a fraction of the cost faced by Western fabricators.
2. Exceptional Welder Expertise: High-temperature vacuum evaporation structures must withstand immense mechanical stresses. Our ASME-certified welders bring years of specialized experience in automated tube-to-tubesheet orbital welding, ensuring leak-free performance and minimizing the risk of crevice corrosion.
3. Streamlined Production Timelines: Our 22,000 square meter facility houses advanced rolling machines, CNC plasma cutters, automated polishing tables, and testing bays. By managing the manufacturing process in-house, we eliminate external bottlenecks, allowing us to deliver complex systems to global sites on short leads.
ASME U-Stamp Authorized Manufacturer
Partner with Jiangsu Zongheng for custom industrial concentration, mechanical dewatering, and low-temperature drying systems. Contact our engineering team today for technical designs and pricing.
Request a QuoteWhether you need ASME pressure vessel certification, CE compliance documents, or help sizing evaporation plants for corn starch processing, our technical team is ready to support your project.
View Details
Zongheng