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As a leading manufacturer in the environmental technology sector, Qingdao Conqinphi Environmental Technology Group Co., Ltd. (established 2015, with a 10,000-30,000 m² factory and 201-300 skilled employees) proudly presents our Sodium Sulfite Crystallization Evaporator – a fully customized solution designed to meet the rigorous demands of chemical processing, wastewater treatment, and industrial crystallization. Our evaporator combines advanced engineering with on-site installation service, ensuring seamless integration into your existing production line. With an annual export value exceeding US$10 million and serving markets across North America, Europe, Asia, and Africa, we deliver reliable, high-performance equipment backed by comprehensive certifications including ISO9001, ISO14000, and OHSAS18001.
This specialized evaporator is engineered to efficiently concentrate and crystallize sodium sulfite solutions, recovering valuable by-products while minimizing waste. The customized design allows us to tailor key parameters such as evaporation capacity, heating method, and material selection to your specific feedstock and operational requirements. Whether you need a compact unit for small-scale production or a large industrial system for continuous processing, our team of experts will work closely with you to deliver a turnkey solution – from initial concept to on-site installation and commissioning.
Key Features & Technical Specifications
- Customized Design: Each unit is engineered based on your feed composition, target crystal size, and production capacity. Options include falling film, forced circulation, or MVR (mechanical vapor recompression) configurations.
- Superior Corrosion Resistance: Constructed from high-grade 304/316L stainless steel or other corrosion-resistant alloys, ensuring long service life even with aggressive sodium sulfite solutions.
- Energy Efficiency: Optional MVR technology reduces steam consumption by up to 70% compared to traditional single-effect evaporators, lowering operational costs significantly.
- Automated Control System: PLC-based control with HMI touchscreen allows precise regulation of temperature, pressure, feed rate, and crystal purging, ensuring consistent product quality.
- Compact Footprint: Modular design saves floor space while maintaining high evaporation rates. Suitable for indoor or outdoor installation.
- On-Site Installation Service: Our experienced engineers supervise installation, provide training, and offer commissioning support to guarantee smooth startup.
| Parameter | Standard Range | Customizable Options |
|---|---|---|
| Evaporation Capacity | 500 – 50,000 kg/h | Up to 100,000 kg/h upon request |
| Operating Temperature | 60 – 120°C (atmospheric) | Up to 150°C with high-pressure design |
| Vacuum Level | −0.05 to −0.09 MPa | Deeper vacuum available |
| Material of Construction | 304/316L SS | Duplex, Hastelloy, Titanium (optional) |
| Power Supply | 380V/50Hz, 3-phase | Custom voltage/frequency available |
| Control System | PLC + HMI (Siemens or equivalent) | Remote monitoring, SCADA integration |
Benefits for Your Business
- Cost Reduction: Recover high-purity sodium sulfite crystals for reuse or sale, turning waste into profit. Lower energy consumption through advanced heat integration.
- Regulatory Compliance: Achieve stringent discharge standards by concentrating and crystallizing sulfite-laden wastewater, reducing environmental footprint.
- Operational Reliability: Robust construction and proven design ensure long-term, trouble-free operation. Spare parts are readily available from our Shandong factory.
- Fast ROI: Typical payback period of 12-18 months depending on throughput and local utility costs.
- Global Support: With a dedicated after-sales team and multiple overseas service partners, we provide prompt technical support and spare parts delivery worldwide.
Our company, Qingdao Conqinphi Environmental Technology Group Co., Ltd., has been delivering high-quality industrial evaporators since 2015. With a factory area of 10,000-30,000 m² and a workforce of over 200 professionals, we have exported to more than 20 countries across North America, Europe, Southeast Asia, Africa, and Oceania. Our products are manufactured under strict quality management systems certified to ISO9001, ISO14000, OHSAS18001, and other international standards. We have successfully completed projects for Fortune 500 companies and local industry leaders alike, earning a reputation for reliability and innovation.
We invite you to experience the difference of a true customized solution. Our engineering team will conduct a thorough analysis of your sodium sulfite stream, propose the optimal evaporator configuration, and provide a detailed proposal including equipment layout, installation timeline, and cost estimates. With on-site installation service included, we ensure your system is up and running with minimal downtime. Contact us today to discuss your project and request a free consultation.
Frequently Asked Questions
Q1: What is the typical lead time for a customized sodium sulfite crystallization evaporator?
A: Lead time depends on the complexity and capacity. Typically, 8-12 weeks after design approval. For urgent orders, we can expedite manufacturing to 6-8 weeks.
Q2: Can you handle high-concentration sodium sulfite solutions with high viscosity?
A: Yes. Our forced circulation evaporator design is ideal for viscous and scaling-prone solutions. We also incorporate anti-crystallization coatings and easy-clean features.
Q3: Do you provide installation and commissioning services overseas?
A: Absolutely. Our on-site installation service includes sending one or two experienced engineers to your plant to supervise assembly, conduct testing, and train your operators. Travel and accommodation costs are included in the quotation.
Q4: What is the expected crystal size distribution from this evaporator?
A: Crystal size can be controlled by adjusting residence time, temperature, and seeding. Typically, we achieve D50 of 100-500 microns. A dedicated crystallization section can be added for more uniform particle size.
Q5: How do you handle corrosion issues with sodium sulfite?
A: We select materials based on pH and temperature. For typical sodium sulfite solutions (pH 8-10), 316L stainless steel is sufficient. For more aggressive conditions, we offer duplex stainless steel or titanium. All wetted parts are passivated and tested for pitting resistance.
Q6: Can your evaporator be integrated with existing control systems?
A: Yes, our PLC supports standard communication protocols (Modbus, Profibus, Ethernet/IP). We can integrate with your DCS or SCADA system for centralized monitoring.
Q7: What is the warranty period for this equipment?
A: We offer a standard 12-month warranty from the date of commissioning, covering defects in materials and workmanship. Extended warranty options are available upon request.
Q8: Do you provide sample testing or pilot trials?
A: Yes. We can test your sodium sulfite solution in our laboratory-scale evaporator to verify crystallization behavior and provide design data. Pilot rental units are also available for on-site trials.
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