30m³ DTB Crystallizer

Shanxi Zhuolianruike Technology Co., Ltd. (ZLRK) specializes in the R&D, customized manufacturing and turnkey project delivery of 30m³ DTB (Draft Tube Baffle) Crystallizer.

Tailored for large-scale industrial production lines with high hourly output and long-cycle continuous operation, our 30 cubic meters DTB crystallizer is an upgraded large-capacity crystallization device optimized for high-volume material processing, stable supersaturation control and high-yield crystal production. Unlike small and medium-sized crystallizers that are limited by tank volume and unable to support mass production, this 30m³ flagship model features expanded effective volume, enhanced internal circulation power and upgraded classification structure.

It perfectly adapts to high-load industrial crystallization scenarios, balances large-output operation and low energy consumption, and provides reliable standardized crystallization solutions for large chemical bases, environmental protection zero-discharge projects and new energy industrial parks worldwide.

The 30m³ DTB crystallizer is a high-capacity suspension classification crystallization system designed for continuous industrial operation. Its overall structure adopts an integrated reinforced tank body and enlarged flow channel design, with a super-large effective storage volume to meet the long residence time requirements of large-flow materials. The core configuration includes an extended central draft tube, widened annular baffle area, high-efficiency axial circulation impeller and intelligent fine crystal elimination system. The optimized structural layout eliminates the flow dead zone common in medium and small crystallizers, ensuring full and uniform fluid circulation inside the tank.

In actual operation, the raw material liquid is stably fed into the bottom of the draft tube through a quantitative feeding system. Driven by a high-power low-speed impeller, the solution rises vertically in a laminar flow state, forming stable supersaturation through vacuum evaporation or temperature gradient cooling. The large-volume crystal growth cavity provides sufficient space for particle maturation. Mature large-grain crystals sink to the bottom discharge area by gravity for automatic discharging, while fine crystals and residual mother liquor are screened by the annular baffle and sent to the external circulation refining system for redissolution and secondary crystallization. The whole process realizes uninterrupted feeding, growth, classification and discharging, achieving high-efficiency and large-batch crystal production with extremely low crystal breakage rate.

Benefiting from its large processing capacity, stable continuous operation and strong material tolerance, the 30m³ DTB crystallizer is mainly applied to large-scale, high-yield and high-standard industrial crystallization projects, covering multiple core industrial fields:

Large Chemical Production: Suitable for mass crystallization and purification of industrial salts including sodium sulfate, ammonium chloride, potassium salt and magnesium salt. It supports 24-hour continuous production of chemical raw materials, effectively improving factory output and product uniformity.

New Energy Industrial Manufacturing: Widely used for recycling and crystallization of lithium, cobalt and nickel-containing wastewater in new energy battery production, as well as purification of battery-grade raw material solutions, meeting the high-purity and large-volume production demands of the new energy industry.

Industrial Wastewater Zero-Discharge: Ideal for high-salt wastewater treatment in chemical parks, printing and dyeing, and electroplating industries. It efficiently separates soluble salts in wastewater, realizes resource recovery and reuse, and helps enterprises meet environmental emission standards.

Fine Chemical & Biological Industry: Applicable for crystallization and refining of heat-sensitive fine chemical materials and biological fermentation broths. The low-turbulence and constant-temperature growth environment protects material activity and ensures high-quality finished crystal products.

1. Large-Volume High-Yield Design, Outstanding Operational Efficiency

The 30m³ ultra-large tank volume greatly improves single-batch processing capacity and material residence efficiency, fully meeting the 24-hour uninterrupted production needs of large industrial lines. Compared with multi-set parallel medium-sized crystallizers, this single-unit large-capacity equipment reduces equipment investment, simplifies pipeline layout and lowers overall site occupation and operation management costs, delivering higher comprehensive production benefits.

2. Upgraded Circulation System, Uniform Crystal Particle Size

Equipped with a customized high-power low-speed circulation system and widened flow channel structure, the equipment achieves full-tank uniform fluid circulation without dead zones. The precisely controlled supersaturation environment avoids excessive secondary nucleation. Matched with the intelligent fine crystal dissolution system, it thoroughly eliminates fine powder impurities, ensuring that the finished crystals feature uniform particle size, high bulk density and excellent fluidity, greatly improving downstream product grade.

3. Reinforced Anti-Scaling Structure, Long Service Cycle

The tank body and internal components adopt integral molding and polished seamless technology. The optimized fluid flow trajectory prevents local material over-concentration and wall adhesion. The independent circulating flushing and fine crystal processing system effectively suppress scaling and blockage. The equipment supports ultra-long continuous operation, greatly reducing shutdown maintenance frequency, improving production continuity and reducing enterprise operating costs.

4. Multi-Scenario Adaptive Customization

Based on the standard 30m³ structural framework, we provide diversified material and configuration customization services. High-corrosion resistant materials such as 316L stainless steel, duplex steel and pure titanium are optional to adapt to acidic, alkaline and high-salt special working conditions. Meanwhile, intelligent automatic control systems, remote monitoring modules and personalized discharge structures can be configured according to customer process requirements to adapt to different production standards.

Our technical team has long-term engaged in the structural optimization and process upgrading of large-scale crystallization equipment. For the 30m³ DTB crystallizer, we adopt finite element fluid simulation and pressure mechanical analysis to iteratively optimize core parameters such as draft tube height, baffle inclination, impeller operating speed and circulation flow rate. The reinforced tank body structure fully meets the pressure resistance and stability requirements of large-volume liquid storage and long-term operation. Before delivery, all equipment undergoes strict hydraulic tests, welding flaw detection and simulated working condition debugging. We also support targeted structural optimization and process adjustment according to customers' unique material characteristics and production indicators, realizing perfect integration of standardized mass production and personalized process adaptation.

Our 30m³ large-capacity DTB crystallizers have been widely deployed in large industrial parks at home and abroad, serving numerous large-scale chemical, environmental protection and new energy zero-discharge projects. We have accumulated rich practical experience in high-load continuous crystallization, high-purity crystal preparation and complex wastewater resource treatment. Whether used as a single independent main unit or matched with multi-effect evaporation production lines, the equipment can maintain stable and efficient operation under long-term high-load working conditions. A large number of successful engineering cases have verified the superior performance and operational reliability of our products, winning stable cooperative relationships and high recognition from global industrial customers.

We provide one-stop full-cycle supporting services for all 30m³ DTB crystallizer products. In the pre-sale stage, we offer free working condition analysis, process scheme design and parameter matching optimization to tailor exclusive production solutions for customers. During production, we implement full-process quality control to ensure that every equipment meets international industrial standards.

After delivery, we provide complete installation drawings, operation manuals, remote technical guidance and on-site installation and commissioning services. We also provide long-term regular equipment maintenance, fault diagnosis, spare parts supply and technical upgrading services, comprehensively guaranteeing the stable, efficient and long-term operation of customer production lines.

Contact us now to get customized technical parameters, real project cases and competitive factory quotations. We always provide professional and reliable large-scale crystallization solutions for global clients!

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