ZLPG Spray Dryer For TCM Extract Traditional Chinese Medicine

Product Specification

ZLPG Spray Dryer For TCM Extract Traditional Chinese Medicine

Product Description

The ZLPG Series is not just a standard dryer; it is a high-performance solution specifically engineered to overcome the "three major challenges" of Traditional Chinese Medicine (TCM) extraction: wall sticking, heat sensitivity, and moisture absorption. While conventional dryers often cause TCM concentrates to soften and char against hot tower walls, the ZLPG series utilizes an innovative Cold-Air Jacket system and Mechanical Shaking technology. This ensures the drying chamber walls remain cool, preventing material adhesion and preserving the bio-activity of your ingredients.

Working Principle

The High-Speed ​​Centrifugal Spray Drying System for Traditional Chinese Medicine Extracts represents the application of centrifugal spray drying technology specifically tailored for the drying of particular materials. It is a drying apparatus that utilizes a high-speed centrifugal atomizer to disperse the material into a fine mist, ensuring thorough contact with hot air to achieve instantaneous drying and produce a powdered finished product.

Performance Features

• High Yield Recovery: Features a sophisticated two-stage cyclone separation system that ensures a ≥95% collection efficiency, minimizing product waste.

• GMP-Compliant Design: Constructed entirely from high-grade stainless steel with mirror-polished internals and quick-opening cleaning ports, making it ideal for pharmaceutical-grade sanitation and rapid batch changeovers.

• Intelligent Thermal Control: Equipped with automated instrumentation that continuously adjusts inlet and outlet temperatures, protecting delicate compounds from thermal degradation.

• Versatile Processing: Efficiently handles liquid feeds with 18%–25% solids content, delivering a consistent, free-flowing powder with a final moisture content as low as 3%–5%.

Technical Specifications

FAQ: ZLPG Series Spray Dryer for TCM Extract

Q1: What is the main difference between the ZLPG series and standard LPG spray dryers?
A: Standard spray dryers often struggle with wall sticking, moisture absorption, and material softening when processing Traditional Chinese Medicine (TCM). The ZLPG series is specifically engineered for TCM with:

Cold-Air Jacket: Prevents heat-sensitive materials from softening and charring on the tower wall.

Air Sweeping Device: Automatically clears accumulated powder from the inner surfaces.

Optimized Recovery: Designed for the fine, hygroscopic nature of TCM powders to ensure higher yields.

Q2: How does the system prevent "wall sticking" during the drying process?
A: We utilize a multi-layered approach to solve this common industry challenge:

Jacketed Cooling: A cold-air circulation system keeps the tower wall temperature below the softening point of the extract.

Pneumatic Hammers: Automatic mechanical shaking devices are installed on the tower to dislodge any powder adhering to the surface.

Mirror Polishing: The inner walls are polished to a mirror finish to minimize material friction and adhesion.

Q3: What are the requirements for the solids content of the liquid feed?
A: For optimal performance, the solids content of the wet material should ideally be between 18% and 25%. While the system can handle variations, extremely high viscosity may affect atomization quality, while very low solids content reduces overall production efficiency.

Q4: What is the typical moisture content of the finished powder?
A: Under standard operating conditions, the moisture content of the finished product is maintained between 3% and 5%. This can be fine-tuned by adjusting the inlet/outlet air temperatures and the feed rate.

Q5: Is the equipment easy to clean and maintain?
A: Yes. The ZLPG series is designed to meet strict GMP standards:

Quick-Open Ports: The tower and piping feature quick-opening cleaning and drain ports for easy access.

Stainless Steel Construction: All contact parts are made of high-grade stainless steel (SUS304 or SUS316L), ensuring corrosion resistance and easy sanitation.

CIP Compatibility: The design supports Clean-In-Place processes to ensure zero cross-contamination between batches.

Q6: What heating sources are available for this system?
A: We offer flexible heating configurations based on your facility's infrastructure:

Steam + Electricity: The most common configuration, using steam for pre-heating and electric boosters for precise temperature control.

Electric Heating: Ideal for smaller units or facilities without a steam supply.

Gas-Fired Hot Air Furnace: Suitable for large-scale production in regions with cost-effective natural gas.

Q7: How does the system achieve a collection efficiency of ≥95%?
A: To maximize yield, we use a two-stage cyclone separation system. For ultra-fine powders, we can also equip the unit with a pulse bag filter or a wet scrubber to capture residual particles, ensuring minimal product loss.

Q8: Can the temperature be adjusted for highly heat-sensitive materials?
A: Absolutely. The system features automatic temperature control and continuous adjustment. The inlet air (typically 150–200°C) and outlet air (80–100°C) are monitored via high-precision sensors and interlocked with the feed pump to ensure the active ingredients are never compromised by over-heating.

Need a Custom Solution?
If your extract has unique properties or specific moisture requirements, our engineering team can provide a tailored technical proposal.