Pulse Spray Drying (PSD)

Transforms liquids and pastes into powder instantly while preserving the nutritional value of the product with huge energy savings.

Key Benefits

Atomization of products that cannot be processed in conventional dryers

It can atomize products with higher viscosity, higher concentration, or products containing fibers/solids up to phew mm.

Lower running cost

Energy efficiency: 20-30% lower running cost than spray dryers.

High final product quality

Keeps the nutritional value of the products.

Lower manteinance costs

No nozzles or discs that have to be frequently changed.

HOW IT WORKS

Air is pushed inside the pulse generator, around the combustion chamber. When the electric motor opens the rotary valve, air goes inside the combustion chamber.

HOW IT WORKS

When rotary valve closes again, gas comes into the combustion chamber.

HOW IT WORKS

Rotary valve opens again, air goes in, and gas is ignited extremely quickly. That generates a pulse, or a sonic wave, that leaves the combustion chamber through the tail pipe, together with the combustion heat, at a very strong acceleration.

Rotary valve closes just after ignition, and the cycle repeats.

HOW IT WORKS

The cycle is repeated more than 100 times per second. That means that more than 100 pulses per second are going throug the tail pipe.

HOW IT WORKS

A liquid or pasty product is injected in the end of the tail pipe, through a single pipe, at low pressure. The pulses break the liquid down into thousands of droplets. A hot spray of fine droplets is generated, that goes inside the drying chamber.

HIGH DRY MATTER AND VISCOSITY PASTES DRYING

The next graph shows the wide potential of new products that can be atomized with PSD : we can handle 10+ times higher viscosity, or more.

MODEL FEATURES PSD

Model	Thermal Power	Evaporation
PSD - 70	70 kW	70 kg/h water
PSD - 350	350 kW	350 kg/h water
PSD - 700	700 kW	700 kg/h water
PSD - 1000	1000 kW	1000 kg/h water
PSD - 2000	2000 kW	2000 kg/h water
PSD - 3000	3000 kW	3000 kg/h water