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As a leading manufacturer in the evaporation and crystallization field, Qingdao Conqinphi Environmental Technology Group Co., Ltd. (established in 2015, with a factory area of 10,000–30,000 m²) proudly presents our Pharmaceutical Grade Three-effect Forced Circulation Evaporation Crystallizer designed specifically for the chemical industry. This advanced system integrates three-effect forced circulation technology to achieve high efficiency, low energy consumption, and superior crystal quality, making it an ideal solution for concentrating and crystallizing heat-sensitive, high-viscosity, or scaling-prone materials. With our commitment to quality and innovation, we deliver equipment that meets the strictest pharmaceutical standards while ensuring stable long-term operation.
Key Features & Advantages
- Three-effect Energy Saving: Utilizes vapor heat from previous effects to reduce steam consumption by up to 60% compared to single-effect systems.
- Forced Circulation Design: Prevents scaling and fouling even with high-concentration slurries, ensuring continuous operation and uniform crystal growth.
- Pharmaceutical Grade Construction: All wetted parts are made of high-grade stainless steel (SUS316L) or optional titanium/hastelloy, fully compliant with GMP and cGMP requirements.
- Advanced Control System: PLC + HMI touch screen for automated operation, real-time monitoring of temperature, pressure, density, and flow rate.
- Flexible Customization: Available in various materials, capacities (500 – 50,000 kg/h), and configurations (vacuum, atmospheric, or pressure operation).
- Easy Maintenance: CIP-compatible design with quick-open inspection ports and removable tube bundles.
Technical Specifications (Typical Model)
| Parameter | Value / Range |
|---|---|
| Number of Effects | 3 |
| Evaporation Capacity | 1,000 – 30,000 kg/h (Custom) |
| Heating Area per Effect | 50 – 500 m² |
| Steam Consumption | 0.4 – 0.5 kg steam per kg water evaporated |
| Operating Temperature | 50 – 100°C (adjustable per effect) |
| Vacuum Degree | -0.08 to -0.095 MPa |
| Power Supply | 380V / 50Hz (or as required) |
Detailed Product Description
Our three-effect forced circulation evaporation crystallizer is engineered for the demanding needs of the chemical and pharmaceutical industries. The system consists of three heating chambers (calandrias) connected in series, each with its own separation vessel and forced circulation pump. The feed liquor circulates through the heating tubes at high velocity (2–4 m/s), preventing scaling and maintaining high heat transfer coefficients even when processing viscous or crystalline slurries.
The vapor produced in the first effect is used as the heating medium in the second effect, and so on, dramatically reducing overall energy consumption. This design is particularly advantageous for concentrating solutions like ammonium sulfate, sodium chloride, sodium hydroxide, glucose, citric acid, and various pharmaceutical intermediates.
Key technical features include:
- Efficient Crystal Separation: The crystallizer employs a fluidized bed or draft tube to promote uniform crystal size distribution and minimize fines.
- Anti-corrosion Materials: All contact surfaces are passivated and electropolished for smooth finish, reducing product adhesion and facilitating cleaning.
- Safety Systems: Equipped with overpressure protection, emergency shutdown, and leak detection sensors for operator safety.
- Data Logging: Optional remote monitoring and data export for batch traceability, meeting FDA 21 CFR Part 11 requirements upon request.
Our crystallizer is available in multiple configurations – from simple manual control to fully automated DCS integration. The forced circulation loop can include a hydrocyclone or centrifuge for continuous salt removal, enabling truly continuous operation.
Trust & Credibility
Qingdao Conqinphi Environmental Technology Group Co., Ltd. has been serving global clients since 2015. Our factory spans 10,000–30,000 m² with 201–300 skilled employees, achieving an annual export value of US$10–50 million. We are certified with multiple management systems including ISO9001, ISO14000, HACCP, OHSAS18001, SA8000, and more. Our products are exported to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and other regions.
We offer complete after-sales support: installation guidance, commissioning, operator training, and spare parts supply from our base in Qingdao, Shandong, China. Each crystallizer undergoes rigorous inspection and testing before shipment. With tens of successful projects in pharmaceutical and chemical plants worldwide, we are confident in delivering a reliable, high-performance solution for your evaporation and crystallization needs.
Contact us today for a customized proposal tailored to your specific material properties, capacity, and site conditions. Our engineering team is ready to assist you from design through delivery.
Frequently Asked Questions (FAQ)
-
Q: What types of materials can this crystallizer process?
A: It is suitable for aqueous solutions that form crystals upon concentration, such as inorganic salts (sulfates, chlorides), organic acids, sugars, and pharmaceutical intermediates. Viscosity up to 500 cP and solids concentration up to 50% can be handled with proper design. -
Q: What is the typical steam consumption?
A: For a three-effect system, steam consumption is approximately 0.4–0.5 kg steam per kg of water evaporated, significantly less than single-effect evaporators (1.1–1.3 kg/kg). -
Q: Can the equipment be used for heat-sensitive materials?
A: Yes, because the boiling temperature in each effect can be reduced by applying vacuum. The last effect can operate at 40–50°C, minimizing thermal degradation. -
Q: What cleaning methods are supported?
A: The system is compatible with CIP (Clean-in-Place) using water or chemical solutions. Optional spray balls and circulation nozzles are available for thorough cleaning. -
Q: What is the delivery time for a standard unit?
A: Typical lead time is 30–60 days after order confirmation, depending on complexity and capacity. Rush orders may be accommodated upon request. -
Q: Do you provide installation and commissioning services?
A: Yes, we offer on-site supervision and training by our experienced engineers. Remote assistance is also available. -
Q: What materials of construction are available?
A: Standard is SUS316L. For corrosive media, we offer titanium, Hastelloy C-276, or duplex stainless steel. Linings such as PTFE can also be applied. -
Q: How do you ensure product quality?
A: Each unit undergoes hydraulic testing, performance simulation, surface finish inspection, and a 24-hour trial run before packing. We also provide documentation including material certificates, welding reports, and dimensional check sheets.
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