ROLLEX/2C SERIES DRYING PLANTS

ROLLEX 2C high performance drying plants are developed to solve, in a rational and cost-effective way, the problem of treating waste that is highly polluting and difficult and costly to dispose of.

The 2C series was designed to improve thermal efficiency and to treat liquid to be dried in clean hot in air-flow without coming into contact with the flame or process fumes.

Also in this case the operating principle is based on rotation of the drying chamber where the material is constantly inserted. The material is mixed and fed into the cylinder with an exclusive patented rotating cage system while a parallel flow of hot air dries the product.

The entire system is self-cleaning and the rotation of the cage is made through the rotation of the drying cylinder. The material is crushed in the last part of the drying chamber with a duly shaped area at the end of the cage.

The crushed product then enters the secondary drying chamber where it is sent towards the discharge hatch by a secondary cage system. Also here the flow of hot air finishes off the drying process.

The mix of drying air and steam gradually produced by the material along its way inside the dryer is first sent to a cyclone dust separator and then to the thermo purification chamber for complete oxidation of the organic substances.

After cooling to about 400 °C when passing through the heat exchanger, the exhaust fume mix is finally sent into a cavity outside the drying chamber thereby providing additional heat to the product to dry through the metal wall of the chamber.
Once the mix also leaves the cavity at a temperature of about 200° ÷ 220°C,it is sent to the flue and dissipates into the atmosphere using the propulsion of a fume suction device placed at the end of the entire process.

The benefits of the ROLLEX 2C system compared to the corresponding direct flame system are the following:

• Drying is carried out with clean pre-heated in air-flow without the material coming into contact with the flame or the fumes of the fuel used for the process.

• It is possible to limit and modulate as desired the temperature of the process air thus reducing the thermal shock on the products to be dried.

• High thermo purification with peak turbulence of exhaust fumes leaving the drying chamber in order to eliminate any bad smelling fumes.

• Self-recovery inside the heat system provided in support of thermo purification as an energy source for heating process air.