The Jacketed Double-Layer Mixing Tank is a premium-grade, temperature-controlled mixing vessel designed for heating, cooling, blending, and homogenizing various liquid materials. It is widely used in dairy, beverage, brewing, food processing, pharmaceutical, and biotechnological industries where precise temperature regulation and hygienic processing are required.
This tank consists of three functional sections:
1. Inner Tank – where the product is mixed and processed.
2. Jacket Layer – a circulation chamber for thermal media such as steam, hot water, or glycol for controlled heating or cooling.
3. Insulation Layer – filled with polyurethane foam or rock wool to maintain stable temperature and reduce energy consumption.
With a sanitary design, mirror-polished surface, and customizable mixing system, the jacketed double-layer mixing tank ensures optimal performance in processes such as syrup blending, fruit juice preparation, fermentation, milk pasteurization, and flavor mixing.
Main Features
● Precise Temperature Control
The jacket structure allows uniform heating or cooling through circulating thermal media. The system supports steam heating, electric heating, or cooling with glycol water. Temperature sensors and controllers ensure stable, accurate temperature adjustment within ±1°C.
● High-Efficiency Mixing System
Equipped with a mechanical agitator and optional bottom homogenizer, the tank ensures consistent product texture and rapid dissolution.
Available agitator types:
o Anchor / Frame agitator for viscous products (syrup, sauce, yogurt)
o Turbine / Propeller agitator for low-viscosity liquids (juice, tea, beverage)
o Homogenizer or emulsifier for fine dispersion and emulsification
● Energy-Saving Insulation
The interlayer insulation minimizes heat loss and stabilizes the process temperature during continuous operation. This structure improves energy efficiency and ensures consistent product quality.
● Sanitary and Durable Design
Constructed from SUS304 or SUS316L stainless steel, the tank is corrosion-resistant, easy to clean, and meets GMP, FDA, and 3A hygiene standards. All welds are fully polished to prevent bacterial accumulation.
● Advanced Control System (Optional)
The tank can be integrated with PLC + HMI automation, enabling automatic monitoring and control of temperature, agitation speed, mixing time, and CIP cleaning.
Detailed Structural Description
1. Inner Tank:
Sanitary stainless steel tank body with smooth polishing (Ra ≤ 0.4 μm), rounded corners, and internal CIP spray balls for easy cleaning.
2. Jacket Layer:
A sealed outer layer surrounding the inner tank for circulating heating or cooling media. Available in dimple jacket, half-pipe, or full-jacket types.
3. Insulation Layer:
Filled with polyurethane foam or rock wool, providing excellent thermal retention and energy efficiency.
4. Agitator System:
Mounted on top or side, equipped with a reducer motor, VFD speed control, and optional scraper blades to prevent material adhesion.
5. Instrumentation:
Includes thermowell, pressure gauge, level indicator, manhole, vent valve, and sampling port. Optional load cells for weight measurement and temperature control panel for process monitoring.
Technical Parameters (Customizable)
| Item | Specification |
| Capacity | 100 L – 30,000 L |
| Material | SUS304 / SUS316L |
| Structure | Double-layer with jacket and insulation |
| Jacket Type | Dimple / Half-pipe / Full jacket |
| Insulation Material | Polyurethane / Rock wool |
| Heating / Cooling Medium | Steam / Hot water / Chilled water / Glycol |
| Temperature Range | -20°C – 120°C |
| Agitator Type | Anchor / Frame / Propeller / Turbine / Homogenizer |
| Agitator Speed | 36–85 rpm (VFD adjustable) |
| Surface Finish | Internal Ra ≤ 0.4 μm, External Matte or Mirror Polish |
| Pressure Rating | Atmospheric / Low-pressure |
| Control System | Manual / Semi-automatic / PLC + HMI |
| CIP Connection | Sanitary quick coupling / Tri-clamp |
| Standards | GB / ASME / DIN / 3A optional |
Tank & Jacket Design
● Double-layer stainless steel structure (SUS304 / SUS316L)
● Inner layer: product-contact, outer layer: jacket for heating/cooling
● Jacket can accommodate steam, hot water, or cooling media
● Open or closed top lid, flat, conical, or sloped bottom
● Support legs with adjustable feet
Agitator Options
● Top-mounted, side-mounted, or bottom-mounted
● Types: Paddle, Anchor, Propeller, Turbine, High-shear mixer (optional)
● Mixing speed: fixed or VFD variable speed (10–150 rpm or customized)
Operating Conditions
● Temperature range: 0–150°C (depending on heating/cooling media)
● Working pressure: atmospheric or low-pressure jacket
● Suitable for low- to medium-viscosity liquids
Connections & Accessories
● Inlet/outlet tri-clamp fittings
● Optional manhole (round/oval)
● Sampling valve optional
● CIP spray ball optional
● Jacket inlet/outlet for heating/cooling media
Control & Monitoring
● Manual or automated temperature control with optional PLC and touch screen
● Flow and level sensors for jacket media
● Optional alarm for over-temperature or abnormal liquid level
Material & Hygiene Standards
● Product-contact material: SUS304 or SUS316L
● Jacket material: SUS304
● Seals & gaskets: Food-grade silicone, EPDM, or PTFE
● Agitator shaft & blades: SUS304 / SUS316L
● Welding: TIG argon welding with smooth internal welds
● Piping: Seamless sanitary stainless steel
● Compliance: FDA, 3A, GMP
● Design standards: ASME, DIN, GB
The system is designed for high hygiene standards, even heat distribution, and CIP compatibility. Smooth surfaces and no dead corners ensure easy cleaning and prevent contamination.
Advantages
● Combines heating, cooling, and mixing functions in one unit
● High-efficiency temperature control for sensitive materials
● Energy-saving insulation and stable thermal performance
● Sanitary and durable construction meeting food-grade standards
● Optional automation for full process monitoring
● Suitable for continuous or batch mixing processes
Applications
● Dairy Industry – Milk pasteurization, yogurt base mixing, flavored milk preparation
● Beverage Industry – Juice blending, syrup dissolution, tea drink preparation
● Brewing Industry – Wort cooling and blending, fermentation pre-mixing
● Food Industry – Sauce, cream, and ingredient formulation
● Pharmaceutical / Cosmetic – Nutrient liquid, lotion, and emulsion production
Optional Configurations
● VFD speed control for agitator
● High-shear emulsifier or homogenizer
● CIP spray ball & pipeline
● Load cells for weighing
● Level gauge (magnetic or electronic)
● Temperature sensors for inner and jacket layers
● Sight glass with LED light
● Pressure/vacuum relief valve
● Skid-mounted mixing platform
● Upgradeable to multi-jacket zones or segmented heating/cooling
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