Vacuum Crystallizers

Vacuum Crystallizers Specification

Sealing
Mechanical Seal

Pressure
Vacuum (-0.09MPa to -0.099MPa)

Condition
New

Process
Continuous/Batch Crystallization

Power Source
Electric

Application
Sugar, Chemicals, Pharmaceuticals, Food Processing

Material
Stainless Steel (SS304/SS316), Carbon Steel as required

Dimension (L*W*H)
Customized as per Design/Capacity

Weight
Upto 20 Tons (varies with model/capacity)

Power(W)
5 kW to 250 kW

Voltage
380V/415V, Customized Available

About Vacuum Crystallizers

Features:

Requires less maintenance

Vacuum Crystallizers

For textile industries,sodium sulphate salts are used for the dyeing process. This salt isconcentrated by an evaporator up to 1.20 sp. gravity (nearly 22% salt content)and separated by Adiabatic Crystallizers or Vacuum Crystallizers.This crystallizer reduces temperature by adiabatic evaporation and reduces itssolubility to less than 5gram per liter from 22gram per liter. Insoluble saltsare crystallized as Na2SO4.10H2O. These salts are separated in a Notch filterand reused to process.

For sodium chloride and other salts, salts are separated from slurry solutionsby gravity in a conical clarifier and further separated by pusher centrifuge/centrifuge.We supply crystallizing units for various types of salts and products.

Versatile Crystallization Solutions

Our vacuum crystallizers are engineered to handle a wide range of liquid solutions for crystal generation, from pharmaceuticals and food products to chemicals and sugars. Tailored to specific process parameters, they offer high recovery ratios and controlled crystallization, minimizing mother liquor contents. Flexible operation modes include both continuous and batch processing, providing robust solutions for multiple industrial applications.

Advanced Control and Safety Features

Equipped with PLC and SCADA-based automation, the control system ensures precise operation, consistent product quality, and reliable safety interlocks. Process data can be monitored and adjusted remotely, enhancing operator convenience and minimizing human error. Multiple safety features, including mechanical seals and vacuum pressure controls, further ensure trouble-free operation.

Customization and Support

From capacity and materials to surface finish and color, every aspect of the crystallizer can be customized to fit client requirements. Our team offers installation services, technical support, and after-sales care across India, ensuring seamless integration into your production line. Whether you require specialized heating or insulation, we provide solutions tailored to your projects demands.

FAQs of Vacuum Crystallizers:

Q: How do vacuum crystallizers improve crystal formation and product purity?

A: Vacuum crystallizers operate under reduced pressure, lowering the boiling point and promoting controlled supersaturation. This environment allows for the efficient separation of crystals from the mother liquor, resulting in well-formed crystals with high purity and minimal impurities.

Q: What types of industries are these crystallizers suitable for?

A: Our vacuum crystallizers are extensively used in the sugar, pharmaceutical, chemical, and food processing sectors. Thanks to customizable designs and capacities, they are adaptable to a wide spectrum of crystallization processes in these industries.

Q: When should I opt for customized capacity or design in a crystallizer?

A: A customized capacity or design is recommended when your process requires specific throughput (from 500 L/hr to 30,000 L/hr), unique space limitations, unconventional materials, or particular heating methods to achieve optimal crystal size and recovery ratio.

Q: Where can installation and after-sales services be provided?

A: Installation and after-sales services are available throughout India. Our technical team assists with commissioning, operator training, and ongoing support to ensure uninterrupted production and equipment longevity.

Q: What is the difference between Forced Circulation, DTB, and Swenson Walker crystallizers?

A: Forced Circulation crystallizers use pumps to circulate solution and maintain uniformity, DTB (Draft Tube Baffle) types offer better size control with slow-moving stirrers, while Swenson Walker crystallizers use rotating paddles for continuous processing. Each type is best suited for specific crystal properties and operational needs.

Q: How does the control system benefit crystallizer operation?

A: The integrated PLC/SCADA systems provide automated control, precise process monitoring, and data logging. This reduces manual intervention, enhances safety, and delivers consistent crystallization results by allowing real-time adjustments.

Q: What are the main maintenance and cleaning features of these crystallizers?

A: The design prioritizes easy access and cleaning, using smooth internal surfaces and minimal dead zones. Low-maintenance mechanical seals and robust materials ensure durability, reducing downtime and routine service frequency.

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