Leave Your Message
The global market for herbal extracts, essential oils, and botanical derivatives has experienced exponential growth, driven by the rising consumer demand for natural pharmaceuticals, organic cosmetics, dietary supplements, and functional foods. As the industry matures, manufacturers are facing unprecedented pressure to scale up production while maintaining the delicate biochemical integrity of their raw materials. This is where the Mixed Feed Evaporator for Herbal Extract and Essential Oil Production steps in as a transformative industrial technology. Unlike traditional batch boiling methods which often lead to thermal degradation of sensitive active compounds, modern mixed feed evaporation systems utilize advanced thermodynamics and vacuum technology to separate solvents from active ingredients at significantly reduced temperatures.
In botanical extraction, the primary goal is to isolate phytochemicals (such as alkaloids, flavonoids, terpenes, and cannabinoids) from plant matrices using solvents like ethanol, methanol, hexane, or purified water. Once the extraction is complete, the solvent must be efficiently removed and recovered. Mixed feed evaporators, particularly those integrated with Mechanical Vapor Recompression (MVR) or Thermal Vapor Recompression (TVR) technologies, offer a continuous, highly efficient solution. By feeding the liquid mixture in a scientifically calculated sequence (often combining forward and backward feed principles), these evaporators optimize the temperature gradient and concentration profile across multiple effects.
Essential oils and herbal active ingredients are notoriously thermolabile. High temperatures can cause oxidation, isomerization, or complete destruction of valuable terpenes and aromatic profiles. Mixed feed evaporators operate under deep vacuum conditions, lowering the boiling point of solvents to safe thresholds (often below 50°C), ensuring 100% retention of biological efficacy and aroma.
Furthermore, the commercial landscape in 2024 and beyond dictates strict environmental and energy regulations. Botanical processors can no longer afford the high steam consumption of outdated single-effect evaporators. The integration of mixed feed configurations maximizes heat transfer coefficients and minimizes scaling (fouling) on the heat exchange tubes, which is a common pain point when dealing with sticky, high-viscosity herbal resins and pectin-rich extracts. This technological leap translates directly to lower operating expenses (OPEX) and a significantly reduced carbon footprint.
Jiangsu Zongheng Concentration & Drying Equipment Co., Ltd.
Jiangsu Zongheng Concentration & 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.
The company's other main products include Tube Bundle Dryers, with design and manufacturing capabilities reaching 1600m² (making it a primary manufacturer of large tube bundle dryers). Other main products such as Single Screw Fiber & Germ Dehydrators and Wash Cyclones are recognized as high-quality products by starch manufacturers and the industry. High-quality products and a sincere service attitude have won consistent praise and trust from numerous users at home and abroad, fully demonstrating the company's first-class technical advantages and manufacturing capabilities for large-scale equipment.
Jiangsu Zongheng is always committed to exploration and innovation. Through years of sincere effort and user support, it has achieved sustained development. Main products include evaporation plants, comprising Multi-Effect Evaporators, Thermal Vapor Recompressors (TVR), Waste Heat Evaporators, and Mechanical Vapor Recompressors (MVR, achieving minimal unit energy consumption). These are widely used for liquid concentration, including distillates, alcohol stillage, ammonium sulfate, corn steep liquor, itaconic acid, threonine, starch sugar, sorbitol, glucose, fructose, trehalose, erythritol, organic wastewater, high-salinity wastewater, etc., making the company one of the domestic manufacturers with the most extensive product variety.
The versatility of the Mixed Feed Evaporator makes it an indispensable asset across various niches within the botanical extraction industry. Let us explore the depth of its applications in contemporary commercial settings.
In the rapidly expanding cannabis industry, the extraction of cannabinoids (CBD, THC, CBG) and delicate terpenes requires absolute precision. Following cryogenic ethanol extraction, vast amounts of ethanol must be separated from the crude cannabis oil. A mixed feed evaporator system efficiently recovers up to 99% of the food-grade ethanol for reuse, while keeping the extract temperature low enough to prevent the decarboxylation of acidic cannabinoids (like CBDA to CBD) prematurely. The continuous flow design prevents the degradation associated with long residence times in traditional rotary evaporators, allowing for industrial-scale throughput.
Traditional Chinese Medicine relies heavily on water and alcohol decoctions of roots, bark, and leaves. These herbal broths are typically high in starches, mucilage, and saponins, which are highly prone to foaming and scaling during evaporation. The mixed feed configuration intelligently routes the less viscous, lower-concentration feed to the higher-temperature effects, and the highly viscous, concentrated product to the lower-temperature effects. This thermodynamic balancing act prevents the scorching of active polysaccharides and ensures a smooth, continuous concentration process, yielding a high-quality TCM extract ready for spray drying or granulation.
For the fragrance and flavor industries, extracting oils from rose petals, lavender, or citrus peels involves handling highly volatile aromatic compounds. When using solvent extraction to create concretes and absolutes, the mixed feed evaporator operates under ultra-high vacuum. The AI-driven control systems monitor the specific gravity and boiling point elevation in real-time, ensuring that the prized "top notes" of the essential oils are not lost to the vacuum pump but are effectively condensed and captured.
In March 2002, the company took the lead in obtaining ISO9001:2015 international quality system certification (Certificate No.: 45021), establishing a complete quality assurance system aligned with international standards. In July 2007, it became a Jiangsu Provincial High-Tech Enterprise. In April 2009, the company obtained the Special Equipment Manufacturing License of the People's Republic of China (License No.: TS2232C42). In August 2012, it acquired the ASME "U" Stamp authorization, marking the company's entry into a new phase of development. The company possesses strong R&D capabilities and advanced manufacturing processes, currently employing over 3 senior engineers and more than 20 engineers and assistant engineers. Multiple innovative technologies have been patented, and many products hold leading positions domestically.
The future of herbal extract and essential oil production is heavily intertwined with Industry 4.0. Modern Mixed Feed Evaporators are no longer just mechanical vessels; they are intelligent, data-driven ecosystems. The integration of AI technology and advanced PLC (Programmable Logic Controller) systems allows for predictive maintenance and real-time process optimization. Sensors continuously monitor feed flow rates, steam pressure, vacuum depth, and product density. The AI algorithms instantly adjust the feed sequence and thermal input to prevent dry-boiling, minimize energy spikes, and ensure a perfectly consistent extract concentration.
Energy consumption is the highest operational cost in evaporation. By utilizing Mechanical Vapor Recompression (MVR), the secondary steam generated from the herbal extract is compressed by a high-speed centrifugal compressor, raising its enthalpy so it can be reused as the heating source. This virtually eliminates the need for fresh industrial steam, cutting energy costs by up to 70% compared to conventional evaporators.
Investing in a state-of-the-art mixed feed evaporator system yields a rapid Return on Investment (ROI) for industrial producers. The economic benefits are multi-fold. Firstly, the extreme efficiency of solvent recovery (often >99%) means that expensive solvents like food-grade ethanol or hexane are continuously recycled, drastically reducing consumable costs. Secondly, the superior quality of the extract—characterized by better color, higher active ingredient retention, and pure aroma profiles—commands premium pricing in the global pharmaceutical and cosmetic markets.
Finally, the automated, continuous nature of these systems reduces labor costs and human error. Operators can monitor the entire herbal extraction and evaporation process from a centralized control room, ensuring compliance with strict GMP (Good Manufacturing Practice) and FDA standards. As global demand for natural extracts continues to surge, upgrading to a mixed feed evaporation infrastructure is not merely an operational improvement; it is a strategic business necessity for remaining competitive.
The company currently holds an absolutely leading position in evaporation technology and has extensive cooperation with many renowned large domestic group companies, including Zhuofeng Biology, Meihua Group, Yufeng Group, Yihai Kerry, North China Pharmaceutical Group, Harbin Pharmaceutical Group, Shouguang Juneng, Qilu Pharmaceutical, Qiyuan Pharmaceutical, Xiwang Group, Shengtai Biology, Zhejiang Huakang, Kelun Pharmaceutical (Yili), and Shandong Tianli.
While meeting domestic market demand, the company's DDGS alcohol equipment and tube bundle dryer series products have been exported to Russia and Southeast Asian markets.
We are capable of providing professional technical support and after-sales service nationwide for our vast user base. High-quality products and their unique solutions not only enhance our corporate economic benefits but also bring us satisfaction by solving processing challenges for our clients.
We warmly welcome friends from various industries, both domestic and international, to visit us for cooperation and mutual development!
Herbal Extract Waste Heat Evaporator