25 Sep 2023
ROASTER PROCESSING LINE
The raw product is dosed from the feeding hopper on the conveyor belt of the dry roaster. The height of the product layer can be automatically adjusted (between 2cm and 20cm) and the advancing speed of the conveyor belt can be set-up, in order to achieve the desired roasting time, thus varying the output capacity of the line. The roasting air is directly heated by an apposite burner, for maximum energy efficiency. The dry roaster is divided into three sections: pre-heating/drying, roasting and cooling. The roasting air flow crosses the product layer from top to bottom and then in the opposite direction, for effective roasting of all the products on the belt. The flow rate can be adjusted thanks to the frequency converter of the dedicated fan. One or more dedicated rotary mixers overturn the product for maximum homogeneity of the process. After the roasting, the product is cooled down by means of ambient air. The cooling rate is accurately controlled in order to achieve the desired temperature of the product at the outlet. If necessary, it is also possible to exclude the cooling from the process. Wide side inspection doors allow easy maintenance and cleaning of the dry roaster and a dedicated system with high pressure water jets grants the continuous cleaning of the product conveyor belt, even during production (especially when processing salted or coated products). SAFE. The dry roaster is equipped with a safety system to reduce fire hazard and with a sprinkler system (to be manually activated) for fire extinguishing.
- General Processing Technology