Application: Test work to obtain operational data and basis for design of industrial size plants of this type. (Test material must be delivered in big-bags holding max. 500 kg.)

Capacity: The typical capacity is 150-500 kg feed/h and the minimum feed requirement is approx. 2000 kg.

Specification: Dry feed is supplied to the HEC^™ by means of a weighbelt. Granulation liquid (up to 3 different kinds) is supplied to the two-fluid nozzles by means of a Mono pump.

The wet granules fall into a 2.5 m² VIBRO-FLUIDIZER^™ for drying/fines removal. At the discharge from the VIBRO-FLUIDIZER^™, a screen classifies the product.

The drying air, up to 4000 kg/h, is heated electrically (max. temperature approx. 200°C) or with propane gas (max. temperature approx. 250°C).

The elutriated fines are collected in a cyclone and together with the undersize from the sieve they can optionally be returned as feed to the HEC^™.

For final cleaning the outlet air passes a bag filter or a venturi scrubber.

GEA Niro's continuous high shear granulator (HEC^™) has been designed to meet industry requirements for converting dusty, light powders into high density, free-flowing granulates and provides a low cost solution to upgrade the quality of a product without the need to shut down existing production plant.

HEC^™ plants are designed for continuous operation. The powder is mechanically fluidized and simultaneously wetted with liquid under controlled conditions that lead to uniform granule growth.

The HEC^™pilot plant provides exact product characteristics, such as bulk density, granule size, particle size distribution, moisture content and mechanical stability.

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