SWIRL FLUIDIZER™

SWIRL FLUIDIZER™ - an agitated flash dryer - For drying of pastes, filter cakes, sludges and viscous liquids to powder in one efficient step.

Kaolin clay can advantageously be dried on the Niro SWIRL FLUIDIZER™

Flash dryers are often an economical choice for drying pastes and filter cakes. For these feeds, as well as suspensions, and highly viscous liquids, the Niro SWIRL FLUIDIZER™ is our agitated design, using a high-speed disintegrating rotor to keep all particles moving. This design is shorter and larger in diameter than a simple flash tube, creating a very compact system.

The Swirl Fluidizer™ is the dryer of choice to produce a fine, homogeneous, non-agglomerated powder, all in one compact process step. It has many process advantages over typical systems:

• Handles non-pumpable products
• One-stage combined drying and product treatment
• Continuous operation
• Very short processing time
• Compact layout requires a minimum of space
• Effective heat and mass transfer
• Negligible heat loss
• Maintenance-friendly design

Niro Swirl Fluidizer™

Swirl Fluidizer™ pilot pant installed in Niro's test station in Columbia, MD - USA.

The heart of the process is the drying chamber, where the feed disintegrates and dries. For most applications, feed is introduced into the middle of the chamber, leading to an internal product flow pattern that produces uniform drying and disintegration.

The air disperser, surrounding the lower portion of the drying chamber, utilizes a tangential air inlet and internal vane system that creates an intense, controllable swirling air flow entering the bottom of the chamber. A vertical rotary disintegrator, provided with horizontal blades, is fitted at the base of the air disperser.

A bag filter typically collects dried product and cleans spent drying air. Niro's cylindrical bag filter with tangential air inlet is ideal for this duty.

Swirl Fluidizer™

Swirl Fluidizer™ - 6.3

• Package plant for semi-industrial drying
• Handles filter cakes, pastes, and thick viscous sludges
• Ideal for many feeds that cannot be dried in traditional dryers
• Continuous, one-stage drying operation
• Compact layout and robust design
• Effective heat and mass transfer for short drying times
• Negligible heat loss for high thermal efficiency
• Removable top section for easy access and cleaning
• Noise attenuator for exhaust fan
• Cartridge filter with easily exchangeable cartridges

Typical Swirl Fluidizer™ applications:

• Agro-chemicals
• Ceramics, minerals (such kaolin clay) as etc.
• Dyestuffs, color pigments, metallic pigments, Opacifying Pigments and dispersions
• Inorganic / organic chemicals
• Waste product - sludge, sediments etc.

Download the Swirl Fluidizer™ — From paste to powder in one efficient step in a PDF format:
Link to PDF file