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Help CenterReliable Ammonium Sulfate Evaporator-Crystallizer, Mill Test Report Provided, Long Service Life
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Welcome to Qingdao Conqinphi Environmental Technology Group Co., Ltd. – your trusted manufacturer of industrial evaporation and crystallization solutions. Since 2015, we have been delivering high-performance equipment to clients across North America, Europe, Asia, and beyond. Our Reliable Ammonium Sulfate Evaporator-Crystallizer is engineered to meet the demanding needs of fertilizer and chemical industries, combining robust construction with advanced process control. Every unit comes with a Mill Test Report to guarantee material and performance integrity, and our design philosophy focuses on long service life through corrosion-resistant materials and precision fabrication. This equipment is not just a machine; it's a long-term investment in your production efficiency.
Product Overview
The Ammonium Sulfate Evaporator-Crystallizer is a specialized system that concentrates and crystallizes ammonium sulfate solutions from various sources, such as caprolactam by-products or synthetic processes. It operates under vacuum to lower boiling points, saving energy while maximizing yield. Key features include:
- High-Efficiency Forced Circulation Design – ensures uniform heat transfer and prevents scaling, even with high-concentration solutions.
- Corrosion-Resistant Materials – wetted parts are made of stainless steel 316L or higher, withstand the acidic nature of ammonium sulfate liquor.
- Integrated Crystallization Section – produces uniform, free-flowing crystals with customizable particle size.
- Mill Test Report Included – provides documented proof of material composition, mechanical properties, and pressure test results.
- Long Service Life – reinforced weld joints, heavy-duty internals, and easy maintenance access.
Technical Specifications
The following table lists typical parameters. Custom configurations are available upon request.
| Parameter | Standard Range |
| Evaporation Capacity | 500 – 10,000 L/h |
| Operating Temperature | 60 – 120°C (adjustable via vacuum) |
| Vacuum Level | -0.08 to -0.095 MPa |
| Heating Surface Area | 50 – 500 m² (custom) |
| Material of Construction | SS304, SS316L, Duplex (optional) |
| Crystal Size Range | 0.1 – 2 mm (adjustable by operation) |
| Power Consumption | 30 – 250 kW (depending on capacity) |
Key Advantages & Customer Benefits
- Energy Efficiency – Our forced circulation design with proper heat recovery reduces steam consumption by up to 20% compared to conventional designs.
- Low Maintenance – The crystallizer’s internal baffle and anti-scaling coating minimize downtime for cleaning. Access doors and quick-open headers simplify inspection.
- Consistent Product Quality – Advanced PLC controls maintain stable temperature, pressure, and slurry density, yielding crystals with narrow size distribution and high purity.
- Scalable Design – Whether you need a single-effect or multi-effect system, we can adapt the evaporator-crystallizer to fit your existing plant layout.
- Comprehensive Support – Each unit is delivered with a Mill Test Report, installation manual, and on-site commissioning guidance from our experienced engineers.
Why Choose Us?
Qingdao Conqinphi Environmental Technology Group Co., Ltd. is a manufacturer with a factory spanning 10,000–30,000 square meters and a dedicated team of 201–300 employees. With an annual export value of US$10–50 million, we have served diverse markets including North America, Europe, Southeast Asia, and Africa. Our products are manufactured under strict quality management systems (ISO9001, etc.) and each component is traceable. We have delivered over 200 evaporation and crystallization systems worldwide, earning trust through reliability and performance. By choosing our Ammonium Sulfate Evaporator-Crystallizer, you are investing in a solution that is backed by a proven track record and a responsive after-sales team.
Contact us today to discuss your specific requirements. Our engineers will provide a tailored proposal with a comprehensive Mill Test Report and a strong warranty to ensure your long-term satisfaction.
Frequently Asked Questions
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Q: What is the typical lead time for this evaporator-crystallizer?
A: Standard lead time is 60–90 days after order confirmation, depending on customization complexity. We can expedite for urgent orders. -
Q: Can you provide a Mill Test Report for the materials used?
A: Yes, absolutely. Every unit is supplied with a Mill Test Report covering the main components: heat exchanger tubes, vessel plates, and fittings. -
Q: What is the expected service life of the equipment?
A: With proper maintenance and operation, the equipment can last 15–20 years. The use of corrosion-resistant alloys and protective coatings contributes to its longevity. -
Q: Do you offer customization for different feed concentrations?
A: Yes. Our design team can adjust the evaporation area, circulation rate, and crystal classification to handle feed concentrations ranging from 10% to 40% ammonium sulfate. -
Q: Is the system fully automated?
A: Yes, the standard configuration includes a PLC-based control system with touchscreen interface, monitoring temperature, pressure, density, and flow rate. Manual override is also available. -
Q: What kind of after-sales support do you provide?
A: We offer remote technical support, on-site commissioning, and a 12-month warranty on parts and workmanship. Extended warranties are available upon request. -
Q: Can this equipment also handle other ammonium salts like ammonium chloride?
A: While designed for ammonium sulfate, the system can be adapted for similar salt solutions after material compatibility review. Please consult with our engineers. -
Q: How do you ensure the crystals are free-flowing and not hygroscopic?
A: Our crystallizer uses a controlled supersaturation profile and optional drying section to produce crystals with low moisture content. For specific applications, we can add a post-crystallization dehumidification step.
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