Heating Bulk Solids Using Air

Slow and Controlled Product Flow
Slow and Controlled Product Flow

Bulk solids pass slowly downward between a series of heat exchange elements.

Indirect Plate Heating
Indirect Heat Exchange

Air (or gases), acting as the heat transfer medium, heats the material indirectly by conduction.

Mass Flow Technology
Mass Flow Technology

A mass flow discharge feeder creates uniform product velocity and regulates the product flow.

Vertical Configuration
Vertical Configuration

Bulk solids pass through the vertical heater by gravity.

SPECIFICATIONS

Product Temperatures:

Up to 2000°C

Heating Medium:

Air / Gases

Capacity:

100 kg/hr to 100,000 kg/hr

Pressure

Atmospheric to High
Pressure Air or Gases

sigma heating system
sigma alpha air
Advantage of indirect heat exchange

The Advantages of Indirect Heat Exchange

Indirect air/gas heat exchange provides many advantages. The air used for heating the bulk solids never comes into direct contact with the product, which preserves the integrity of the product and eliminates the need to treat the incoming or outgoing air.

heating Bulk solids with recovered energy thumbnail

Heating Bulk
Solids with Recovered Energy

The Solex indirect heat exchange technology makes it possible to use waste heat from elsewhere in your facility for heating bulk solids. Waste gases can be used in the Solex heat exchanger to indirectly heat the bulk solid materials.

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