The spray drying processes for the detergent industry can be designed with co-current, counter-current or mixed airflow patterns.

Within this product group Niro offers a broad range of technical solutions specially designed for agglomeration, granulation and drying in the conventional household and industrial detergent industry.

NIRO'S CONVENTIONAL DETERGENT POWDER PROCESS:

OTHER TYPICAL PRODUCTS APPLIED TO THE NIRO DRYING TECHNOLOGY:

• Alkyl-Aryl Sulphonates
• Dispersing agents
• Emulsifying agents
• Enzymes
• Fatty alcohol sulphonate
• Mono- and dipotassium orthophosphate
• Nitrilo tri-acetic acid salts
• Optical brightener
• Phosphates
• Hand soap
• Sodium lauryl sulphate
• Sodium perborate
• Sulphonates
• Tetra potassium polyphosphate

SPRAY DRYING (TOWER PRODUCTS):

The spray drying processes can be designed with co-current, counter-current or mixed airflow patterns. The feed is atomized either by pressure nozzle, two fluid nozzles or rotary atomizer. The type of feed varies between melts, solutions and slurries. The drying chamber is designed to ensure the needed air flow and product residence time, seeing how these aspects differ from product to product.

The exhaust air can be designed with cleaning in cyclones, bag filters and scrubbers. In some cases the bag filters can be installed in the top of the drying chamber, thereby minimizing the plant area consumption and the need for an external fines return system is avoided.

GRANULATION (NON TOWER PRODUCTS):

The Niro Continuous High Shear Granulator (HEC^TM Series), has been specially developed to meet industrial requirements of converting dusty, light powders into high density free-flowing granulates. The HEC^TM handles a wide variety of powders and was initially developed for the detergent industry to produce compact powders with densities ranging from medium to high density.