Spouted bed drying (SBD)

Transforms liquid or pasty organic wastes, into little dry spherical granules, like mineral fertilizers.

Key Benefits

Digestate, liquid manure, sludge

It can granulate liquid and pastes that contain organic matter such as digestate, liquid manure, sewage sludge, …

Same as commercial mineral fertilizers

Granules are totally spherical, hard, dust free. It can make 2-4 mm diameter granules, or 0,5-2 mm microgranules. It´s the same format as most mineral fertilizers.

Flexibility for different products

NPK value of final product can be regulated, adding mineral or organic materials, to reach a more commercial formula for conventional or organic farming.

Flexibility for different heat sources

It can use waste heat from other processes, or use different types of fuels (biogas, biomass, natural gas, ...). Drying in a closed circuit can be achieved, reusing exhaust gases and minimizing emissions/odors.

HOW IT WORKS

Hot air gets inside a vertical fluid bed drying chamber, from the bottom, vertically upwards

HOW IT WORKS

The bed is full of granules, the hot air moves the granules creating a “spout”, circular movements up and down.

HOW IT WORKS

When the liquid gets into the drying chamber, quickly distributes over all granules, creating new layers that dry. Granules increase their size, new granules are also created, the amount of dry granules inside goes growing. Moist cool air leaves the drying chamber from the top.

HOW IT WORKS

The granules leave the drying chamber from one side, totally dry. After phew hours running, 100% of granules are made by the dried liquid product, until liquid product changes.

MODEL FEATURES SBD

Model Thermal Power Evaporation
SBD-100 100 kW 91 kg/h water
SBD-500 500 kW 455 kg/h water
SBD-1000 1000 kW 910 kg/h water

Some applications:

Solid fraction of digestate, struvite and blood

Solid fraction of digestate, struvite and blood

Composted poultry manure and NPK fertilizers

Composted poultry manure and NPK fertilizers

Sewage sludge and NPK fertilizers

Sewage sludge and NPK fertilizers

Solid fraction of digestate, ammonium sulphate from digestate, struvite.

Solid fraction of digestate, ammonium sulphate from digestate, struvite.

Interested in learning more about Ekonek ?

Contact us

close overlay