Overview

Concentration is a core process in many industrial processes, and traditional atmospheric concentration has drawbacks such as high temperature, high energy consumption, and easy destruction of thermosensitive components. The vacuum depressurization concentration tank reduces the boiling point of the material by establishing a negative pressure environment (such as-0.08MPaThe boiling point of water is about45℃）To achieve efficient evaporation under low temperature conditions. At present, this equipment has become a tool for pharmaceutical extraction concentration, food juice concentration, and chemical intermediate processingprimaryTechnology reduces energy consumption compared to atmospheric concentration40%The above.

equipmentstructural composition

The vacuum depressurization and concentration tank is mainly composed of the following components:

Concentrator tank: vertical or horizontal structure, usually made ofSUS304/316LStainless steel, volume0.5-10m³Not waiting, with jacket or coil heating

Condenser: a tube or plate condenser used to condense and evaporate solvent vapors

Vacuum system: water ring vacuum pump, Roots pump or hydraulic jet pump, maintaining the vacuum degree of the system (usually-0.06to-0.095MPa）

Separators: vapor-liquid separation devices to prevent material leakage

Control system:PLCAutomatically control parameters such as vacuum degree and temperature

working principle

The material is concentrated in the tank through the following process:

Vacuum pumping: Start the vacuum pump to reduce the pressure inside the tank to the set value

Heating: Indirect heating of materials by introducing steam or hot water

Evaporation: The boiling point of the material liquid decreases under low pressure, and the solvent evaporates rapidly

Condensation: The evaporated solvent vapor is condensed and recovered by a condenser

Concentrate collection: After reaching the desired concentration, release the vacuum and discharge the concentrate

Technical features: Increased heat transfer temperature difference and improved evaporation rate in a vacuum environment; Low temperature operation protects thermosensitive components; Closed systems reduce solvent loss and environmental pollution.

technical advantage

Low temperature evaporation: effectively protects thermosensitive ingredients, such as active pharmaceutical ingredients, food nutrients, etc

Energy saving and efficient: low evaporation temperature, high heat utilization rate, and reduced energy consumption compared to atmospheric concentration30-50%

High concentration ratio: One concentration can reach a higher concentration (such as concentrating traditional Chinese medicine extract to relative density)1.2-1.35）

Flexible operation: intermittent or continuous operation, suitable for multi variety and small batch production

Application field

Pharmaceutical industry: concentration of traditional Chinese medicine extract, concentration of antibiotic fermentation broth, concentration of vitamins, etc

Food industry: juice concentration, whey concentration, seasoning concentration, etc

Chemical industry: organic solvent recovery, dye intermediate concentration, environmental wastewater treatment, etc

Bioengineering: Enzyme concentration, microbial metabolite extraction, etc

Modern Technology Integration

Multi effect concentration: adopting a multi effect series design, using the secondary steam of the front effect as the heat source of the back effect, significantly reducing energy consumption

MVR technology: Mechanical steam recompression technology, which uses secondary steam compression and heating as a heat source, with energy consumption only one-third of traditional concentration

Automated control: Adopting PLC/DCS system to automatically adjust vacuum degree, temperature and feed rate, achieving precise control

Online cleaning: equipped with CIP online cleaning system, meeting GMP requirements