Explore our top-tier industrial evaporators, separation technologies, and mechanical extraction machinery designed for heavy-duty chemical processing, starch refining, and environmental recovery operations.
Film type evaporators, notably Falling Film Evaporators, represent the pinnacle of thermal separation efficiency in processing heat-sensitive, high-volume liquid streams. From food fermentation and dairy processing to petrochemical concentration and zero-liquid-discharge (ZLD) wastewater management, film-based evaporation is vital for maintaining fluid product integrity under strict temperature thresholds.
Globally, industrial processors are moving rapidly toward energy conservation. The demand for advanced MVR (Mechanical Vapor Recompression) and TVR (Thermal Vapor Recompression) film evaporators is escalating. These systems recycle latent heat of vaporization, substantially lowering carbon footprints and utility costs. Modern engineering standards mandate high heat transfer coefficients ($U$-values), precise liquid distribution, and low pressure drops across tube bundles.
We provide specialized, high-performance machinery engineered to solve drying, concentration, extraction, and starch refining challenges across global production lines.
From Mechanical Vapor Recompression (MVR) units to multi-effect falling film systems, we build heat-exchanging plants that deliver high concentration factors with minimal thermal impact.
Our single screw presses are designed to handle highly concentrated solid-liquid mixtures. They provide high mechanical pressure to extract liquid prior to thermal drying phases.
Engineered for high-volume drying. Our MQG Airflow design utilizes high-velocity air streams to suspend particles, ensuring rapid moisture transfer and safe processing.
For process engineers, selecting the optimal heat exchanger design is critical to project success. Below, we compare the key performance criteria for film evaporators and forced circulation systems.
Designed for low-viscosity, clean fluids and heat-sensitive mixtures. The liquid feed enters the header and is distributed evenly across the inner surfaces of heated vertical tubes, descending as a thin film.
Designed to handle high viscosity, crystallization, and scaling fluids. A high-efficiency recycle pump continuously drives the fluid through the heat exchanger tubes under pressure to prevent boiling within the tubes.
Founded in 1992 (originally Yixing Yangxi Light Industry Machinery Factory), Jiangsu Zongheng Concentrating and Drying Equipment Co., Ltd. is located in Zhoutie Town, Yixing City, on the shores of Taihu Lake. We operate a modern high-tech enterprise facility covering over 54,000 square meters, with a dedicated production workshop area of over 22,000 square meters.
As a member of the China Starch and Alcohol Association, we specialize in high-precision, low-temperature evaporators, heavy-duty starch machinery, alcohol DDGS systems, and Class III medium & low-pressure vessel equipment. Our designs are widely applied across global fermentation, pharmaceutical, chemical, and environmental processing plants.
Sourcing industrial evaporators from China offers clear structural, economic, and logistical advantages without compromising on quality or regulatory compliance.
Our journey from a local machinery shop to a global supplier of specialized chemical concentration and drying equipment.
Operating across 54,000 square meters of production space with 20+ senior engineers, delivering high-efficiency MVR evaporation systems globally.
Achieved 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 manufacturing development.
Obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42).
Recognized officially as a High-Tech Enterprise, acknowledging our innovations in evaporation and drying systems.
Obtained ISO9001 quality management system certification, aligning our design and production processes with international standards.
Established as Yixing Yangxi Light Industrial Machinery Factory in Zhoutie Town, starting with a team of 45 people dedicated to local process equipment fabrication.
Our process plants are engineered to meet the operational demands of diverse industrial applications.
Concentrating starch-based glucose, sorbitol, and amino acids. Low evaporation temperatures prevent thermal degradation, protecting raw material flavor and chemical structure.
Integrating multi-effect falling film and waste heat evaporators to recover light grains and distillers solubles, reducing energy consumption in biofuels production.
Processing industrial waste streams to recover pure water and crystal salts. Engineered with materials like Duplex Steel and Titanium to withstand high chloride concentrations.
Technical details and answers to key questions from process engineers and global procurement managers.
A: Mechanical Vapor Recompression (MVR) systems compress the overhead vapor using a mechanical compressor, raising its energy level to be reused as the heating source. This eliminates the need for fresh steam during continuous operation. Multi-Effect Evaporators reuse flash steam across successive pressure-staged vessels. While MVR systems require higher initial capital investment, they offer significantly lower ongoing operational costs.
A: Dry-out and fouling are prevented through precise liquid distributor design at the top of the tube bundle. We calculate wetness rates to ensure that the inner tube surfaces remain fully wetted. We also perform simulation testing of fluid distribution to ensure even wetting across variable flow rates.
A: For corrosive wastewater containing high chloride levels, we recommend titanium (Grade 2), duplex stainless steel (2205/2507), or Hastelloy. Standard stainless steel like 316L is suitable for clean food and chemical processes without high concentrations of halogens.
A: Yes, we are ASME "U" Stamp authorized. Our pressure vessels are manufactured, tested, and certified in accordance with ASME Section VIII Division 1 guidelines and Chinese Special Equipment standards (Class III Pressure Vessels).
A: Our waste heat design integrates multiple waste heat sources, such as dryer vapors, engine exhaust gas, and low-pressure steam, using them as heating media. This integration reduces primary utility steam consumption, lowering overall plant operating costs.
In process plants, the evaporator absorbs thermal energy to vaporize media, while the condenser releases latent heat to liquefy process vapors. Working under vacuum conditions, the evaporator generates temperature differences to concentrate fluids and recover solvents, while the condenser completes the cycle by turning vapors back into liquid streams. Choosing the proper material thickness, vacuum level, and pipe configuration is vital to optimizing thermal performance.
Find the right evaporator design, starch washing cyclone, dewatering screw press, or air dryer for your plant operations.
We welcome engineers and industrial buyers from all industries, both domestic and international, to visit our facility and explore opportunities for mutual development.
Zongheng