Reference projects

Carbonisation des Pyrénées
Haute Garonne (France) - April 2000

Carbonisation des Pyrénées

1 carbonisation unit / 6 furnaces
Oak, beech


Valbois company
Ain (France) - May 1993

Valbois company

1 carbonisation unit / 10 furnaces
Oak, beech, pine


SOCBA
Lot et Garonne (France) - October 1999

SOCBA

1 carbonisation unit / 12 furnaces
Pine, chestnut tree, oak


Bluestar
Tian Shui (Chine) - June 2009

Bluestar

1 carbonisation unit / 12 furnaces
Broad-leaved tree, conifer


Charbon de bois du Périgord
Dordogne (France) - July 1997

Charbon de bois du Périgord

2 carbonisation units / 12 furnaces
Pine, chestnut tree


Eurotra company
Belgium - March 1997

Eurotra company

1 carbonisation unit / 10 furnaces
Oak


Presentation of the CML production plant

A CML carbonization plant is a standardized unit comprising 12 production kilns linked to a system of depollution which incinerates the waste gases.



Unité de carbonisation CML

 

Unité de carbonisation CML

 

Unité de carbonisation CML

 

Unité de carbonisation CML

 

Unité de carbonisation CML

Principle

Charcoal is produced in cylindrical kilns fitted with a lid at the top, and a discharge hatch in the base. Entry of air is controlled by valves positioned at the base and around the lower sides of the kilns.

 

 

 

Fuel supply

Kilns are filled from the top using a forklift truck fitted with a bucket. The kilns are discharged cold using the bottom hatch.

 

 

 

Antipollution

The anti-pollution system is comprised of an incinerator and flues. The fumes are collected in the upper part of the kilns, passed to the heart of the incinerator through metallic ducts (one per oven) and flues.

 

 


Unloading

Under each kiln, the charcoal is channelled directly to the extinguishing pans. These pans pass along a service ditch running between the 2 lines of kilns by means of a trolley on rails. A lifting mechanism at one end then pulls them out of the ditch.

 

 

 

Access

The plant includes a series of ladders and gangways allowing safe access to all parts of the installation.

 


Production capacity

This CML technology allows the carbonisation of all types of wood, deciduous and resinous. The carbonisation efficiency (in yield and productivity) is directly linked to the quality and characteristics of the raw material used (dimensions, humidity, cleanliness etc).

With wood under 20% humidity a complete production cycle of loading, carbonisation, cooling and discharge is completed in 24 hours for each kiln.

For example, using oak or beech with a humidity between 20% and 25%, the daily production level for 12 kilns is 8 tons of commercial charcoal.

Depending on the organization of the site, an CML unit can produce over 2500 tons of charcoal per year.




LRCB Développement : Consulting, engineering, supply and commissioning of carbonisation units