Unique Design of Double-Layer Carbonization Furnace

The continuous coconut shell carbonization equipment produced by Leemay Machinery implements a horizontal double-layer drum design to make the production process more consecutive. Compared with single-layer drum carbonization equipment, the advantage of double-layer drum is its more exquisite process design.

Inner drum: Coconut shells enter into the inner drum from the feeding port, and with the rotation to the back end direction, the inner drum is heated at a lower temperature than the outer drum, which plays the role of drying coconut shells.

Outer drum: After drying, coconut shells enter into the outer drum at the back end and are conveyed through the whole outer drum to realize the pyrolysis and carbonization process. The temperature of the outer drum is relatively high, generally at 500 ℃ -800 ℃, coconut shells will be under high-temperature carbonization and discharged from the bottom of the front end of the discharge port. The outer drum roller is made of 304 stainless steel, which is good for continuous production at high temperatures, and has good resistance to high temperature, corrosion, oxidation, acid, and alkali, which prolongs the service life of the drum.

The double drum carbonization equipment can expand the running path of the coconut shell in the drum, and the temperature difference between the inner and outer drum also relaxes the requirement of water content of the biomass material, so that the material drying and carbonization can be carried out at the same time, which ensures the high quality of the biomass char produced. Meanwhile, during the carbonization process, the coconut shells will not touch with smoke or be polluted by hot air. 

Therefore, the charring efficiency of the double-drum carbonization plant is higher and the charring effect is much better.