Concentration Extraction Unit
Extraction & Distillation
Extraction and Concentration Unit - Product Specification Sheet
1. Product Overview
The Extraction and Concentration Unit is a multi-functional turnkey system that integrates extraction, filtration, concentration, and solvent recovery. It is primarily used for extracting active ingredients from solid materials such as plants, herbs, and food raw materials and concentrating the extract to a specified concentration. The equipment typically includes an extraction tank, filter, concentrator, condenser, solvent recovery tank, vacuum system, and automatic control system. The main body is constructed from stainless steel, providing high extraction efficiency, precise temperature control, low solvent loss, and automated operation. It is widely used in traditional Chinese medicine, natural products, food, bioengineering, and fine chemical industries.
2. Working Principle
The material is loaded into the extraction tank, and solvent is added. The jacket or internal coil heats the mixture, dissolving the active ingredients into the solvent at a set temperature. The extract passes through coarse and fine filtration before entering the concentrator. Under vacuum conditions, the extract is heated, and the solvent vapor rises, condenses in the condenser, and is recovered in the solvent tank for recycling. The liquid is continuously evaporated and concentrated to the desired concentration. A vacuum pump maintains the vacuum level, lowering the evaporation temperature to protect heat-sensitive components. The process supports various modes such as stirring extraction, dynamic circulation, reflux extraction, and Soxhlet extraction.
3. Structure Types
Straight Cone Extraction Unit: Straight cylinder with conical bottom; simple structure, easy residue discharge; suitable for conventional extraction.
Inverted Cone Extraction Unit: Inverted conical tank body; increases heating area, smooth residue discharge; suitable for coarse materials.
Mushroom Type Extraction Unit: Upper enlarged tank; provides vapor disengaging space; suitable for foaming or vigorously boiling materials.
Multi-functional Extraction Tank: Integrates extraction, concentration, and recovery; can switch between atmospheric, slight overpressure, and vacuum modes.
Thermal Reflux Extraction & Concentration Unit: Performs extraction and concentration simultaneously; solvent continuously refluxes to the extraction tank to maintain concentration gradient and improve yield.
Dynamic Extraction Unit: Equipped with stirrer or forced circulation device inside the tank to accelerate active ingredient dissolution and shorten extraction time.
4. Detailed Technical Parameters
4.1 Main Equipment Common Specifications
Extraction Tank Volume Range: 50 L ~ 10000 L
Concentrator Evaporation Capacity Range: 50 kg/h ~ 5000 kg/h
Extraction Temperature Control: ambient ~ 120°C
Concentration Vacuum Degree: -0.06 MPa ~ -0.095 MPa
Working Pressure: Atmospheric or slight overpressure (can be designed as pressure vessel)
Extraction Methods: Static soaking, dynamic stirring, reflux circulation
4.2 Processing Capacity and Equipment Parameter Table
| Model | Tank Volume (L) | Evap. Rate (kg/h) | Jacket Pressure (MPa) | Heating Power (kW) | Vacuum (MPa) | Cond. Area (㎡) | Dimensions L×W×H (m) |
|---|---|---|---|---|---|---|---|
| TQ-200 | 200 | 50 | 0.09 | 18 | -0.08 | 3 | 1.6×0.8×2.5 |
| TQ-500 | 500 | 100 | 0.09 | 36 | -0.08 | 6 | 2.0×1.2×3.0 |
| TQ-1000 | 1000 | 200 | 0.09 | 60 | -0.08 | 12 | 2.5×1.5×3.8 |
| TQ-2000 | 2000 | 400 | 0.09 | 90 | -0.08 | 20 | 3.2×1.8×4.5 |
| TQ-3000 | 3000 | 600 | 0.09 | 150 | -0.08 | 30 | 3.6×2.0×5.0 |
| TQ-6000 | 6000 | 1200 | 0.09 | 280 | -0.08 | 60 | 4.5×2.5×6.0 |
Note: Heating power is primarily based on steam heating; switchable to thermal oil or electric heating modules.
4.3 Design Conditions
| Parameter | Value Range | Remarks |
|---|---|---|
| Extraction Tank Design Pressure | Atmospheric ~ 0.3 MPa | Based on extraction process needs |
| Concentrator Design Pressure | -0.1 MPa ~ 0.3 MPa | Vacuum and slight overpressure operation |
| Design Temperature | Ambient ~ 150°C | Heating medium: steam or thermal oil |
| System Vacuum Degree | -0.06 MPa ~ -0.095 MPa | Energy saving and heat-sensitive protection |
| Heating Medium | Steam (0.09~0.3 MPa) / Thermal oil / Electric | According to site conditions |
| Cooling Water Temperature | ≤ 30°C | To ensure condensation performance |
4.4 Core Component Parameters
| Component | Specification/Material | Parameter |
|---|---|---|
| Extraction Tank | Straight/inverted cone/mushroom, SS304/316L | Volume 50~10000 L, jacket or coil heating |
| Filter | Duplex filter/bag filter, SS304/316L | Filtration accuracy 20~200 mesh |
| Concentrator | Rising film/falling film/wiped film, SS304/316L | Evap. rate 50~5000 kg/h |
| Condenser | Shell and tube/spiral plate, SS316L | Condensing area 3~120 ㎡ |
| Cooler | Shell and tube, SS304/316L | Cooling area 3~60 ㎡ |
| Solvent Recovery Tank | Vertical/horizontal, SS304/316L | Volume 100~5000 L |
| Vacuum System | Water ring/rotary vane vacuum pump | Ultimate vacuum -0.095 MPa |
| Control System | PLC + Touchscreen HMI | Online monitoring of temperature, pressure, level, vacuum |
5. Material Selection (International Standard Comparison)
| Component | China GB | ASTM/AISI | DIN EN | Characteristics |
|---|---|---|---|---|
| Extractor/Concentrator Body | S30408 (304) | 304 / S30400 | 1.4301 | Food grade, general corrosion resistance, suitable for water/alcohol solvents |
| Extractor/Concentrator Body | S31603 (316L) | 316L / S31603 | 1.4404 | Molybdenum alloyed, resists chloride, suitable for acidic or chlorinated solvents |
| Heat Exchange Tubes | S31603 (316L) | 316L | 1.4404 | Efficient heat transfer, corrosion resistant |
| Gaskets | Silicone / PTFE | Silicone / PTFE | — | Temperature and solvent resistant, food and pharma compliant |
| Filter Screen | SS316L | 316L | 1.4404 | High mesh, corrosion resistant, easy to clean |
| Insulation Jacket | SS304 / Galv. Steel | 304 / Galv. Steel | 1.4301 / DX51D | Protection and insulation |
6. Typical Application Fields
Traditional Chinese Medicine: Extraction and concentration of TCM slices, patent medicines, and formula granules.
Natural Products: Extraction and concentration of active components from tea, chrysanthemum, ginkgo leaves, licorice, etc.
Food Industry: Fruit and vegetable juice concentration, flavor extraction, natural pigment extraction, functional sugar concentration.
Bioengineering: Fermentation broth concentration, enzyme extraction, microalgae oil extraction.
Fine Chemicals: Plant essential oil extraction, natural antioxidant production, cosmetic active ingredient extraction.
Pharmaceutical Industry: Concentration of intermediate extracts in API production and solvent recovery.
7. Design Standards & Certifications (Internationally Recognized)
| Standard/Certification | Description |
|---|---|
| GB/T 150 / GB/T 151 | China Pressure Vessel Design Code |
| ASME VIII Div.1 | US Pressure Vessel Code (U Stamp optional) |
| PED 2014/68/EU | EU Pressure Equipment Directive (CE Marking) |
| GMP | Good Manufacturing Practice (Hygienic/Sanitary design) |
| FDA 21 CFR | Food contact material compliance (optional) |
| ISO 9001:2015 | Quality Management System |
| CE | EU Safety Conformity Certification |
7. Design Standards & Certifications
The equipment is designed, manufactured and inspected in accordance with the following standards and certifications. Applicable codes are confirmed at the technical agreement stage.
| Standard / Certification | Description |
|---|---|
| GB/T 150 / GB/T 151 | Chinese design code for pressure vessels and heat exchangers |
| ASME VIII Div.1 | American pressure vessel code (U-stamp available as an option) |
| PED 2014/68/EU | European Pressure Equipment Directive (CE marking) |
| ATEX / IECEx | Explosion protection certification (optional) |
| GMP | Good Manufacturing Practice, hygienic design for pharmaceutical service |
| FDA 21 CFR | Food-contact material compliance (optional) |
| ISO 9001:2015 | Quality management system |
8. Customization Options
Extraction tank structure: straight cone, inverted cone, mushroom type, dynamic stirring type.
Concentrator type: single-effect, double-effect, triple-effect concentrators; rising film, falling film, wiped film.
Heating method: steam, thermal oil, electric, hot water circulation.
Operation mode: atmospheric extraction, slight overpressure extraction, vacuum concentration, thermal reflux integrated extraction-concentration.
Residue discharge: manual ball valve, pneumatic discharge door, hydraulic tipping.
Automation: PLC full automatic control, touchscreen interface, online monitoring and data logging of temperature, vacuum, liquid level.
Cleaning system: CIP online cleaning system, rotary spray balls in tank.
Surface finishing: internal mirror polish Ra≤0.4μm, external brushed or matte finish.
Connection standards: HG/T 20592, ANSI B16.5, DIN flanges, sanitary tri-clamp connections.
Special materials: titanium, Hastelloy, duplex stainless steel for highly corrosive media.
9. Parameters Required for Ordering
Material name and physical form (herb/plant/powder etc.)
Extraction batch capacity (kg/batch or L/batch)
Extraction solvent type and concentration
Required extraction temperature, pressure, and time
Initial extract concentration and target final concentration
Required evaporation rate (kg/h) or concentrator specification
Available heat source (steam pressure, thermal oil temperature, electric power)
Cooling water temperature and supply conditions
Explosion-proof and hygiene requirements (GMP or food grade, etc.)
Target certifications (ASME/PED/GB/GMP/FDA, etc.)