Heat Treated Wood Kiln

FEBX500

Designed to offer the best temperature uniformity of the industry, the FEBX500 stands out from the competition with its exceptional airflow rate and its precise temperature control.

The torrefaction is a heat treatment which aims to modify the properties of various wood varieties. Unlike a conventional drying, torrefaction is done at high temperature, in the range of 160°C to 250°C [320°F to 490°F]. The torrefied wood develops increased resistance to deterioration, fungal attack as well as insects. In addition, the wood becomes hydrophobic, ie water will pearl on is surface and does not penetrate the fiber. It is not necessary to chemically treat the torrefied wood for use in external applications. Finally, the torrefaction can change the shade of the wood. Thus, woods varieties with paler shades can be torrefied from golden honey to very dark colors.

Airex Industries has developed a high end technology biomass torrefaction oven for performing treatment on wood. It was designed and created to meet the needs of this particular application. The biomass torrefaction oven is intended to be fully autonomous, requiring a minimum of human intervention. Simply insert the wood into the oven, entering the starting data in the computer and the oven will do the rest!

How it Works

First, the load of wood has to be stacked on the cart specially designed for this application. The cart is introduced in the biomass torrefaction oven with the help of the rail system that allows the insertion and extraction of the wood, effortlessly and securely. Once done, simply lock the door properly. It remains only to enter the technical data relating to the variety wood to be torrefied in the computer and the process begins. All stages are fully managed by the biomass torrefaction oven computer.

Once the process finished, just extract the load using the rail system and to introduce it in the steaming pit. It is a chamber allowing the wood to cool down in a controlled and safe environment. Once out of this room, the wood is ready to be transformed.

Advantages

  • Basic capacity of 3 000 foot board measure (FBM) per batch.
  • Suitable for all woods varieties.
  • Modular ventilation system, allowing you to receive an oven to the length that will suit your needs.
  • Heating by electric heat coil.
  • High-efficiency electric motor.
  • Automatically reversible air flow.
  • Adjustable air distribution within the biomass torrefaction oven.
  • Smart door lock, making impossible to open the biomass torrefaction oven when it is on.
  • Access door making the inspections and maintenances easily.
  • Rail on the floor to easily enter the wood load on a cart designed for that purpose.
  • Autonomous water injection system used for humidification.
  • Flowmeter for the water injection system
  • Thermal probes network to visualize the temperature:
    • At the entrance of the ventilation system.
    • At the exit of the ventilation system.
    • Inside the wood.
  • High-temperature internal pressure sensor.
  • Control panel with PLC annexed to the biomass torrefaction oven

 

Specifications

External dimensions
(L x W x H)
276" x 114" x 170"
Internal lining Stainless steel 304
Load capacity 3 000 FBM
Operating temperature 160 °C à 250 °C
[320 °F à 490 °F]
Total capacity of heating coils 200 kW
Total capacity of fans 30 000 cfm
Electric motors 2 x 25 hp
Input power 600 V
Temperature sensor Type K
Number of nozzles for water injecting 8
Capacity of each nozzle 0,25 gpm @ 40 psi

Steaming Pit

Related Equipments for the Realization of the Torrefaction Process.

Following its passage in the biomass torrefaction oven, the wood is introduced into the steaming pit. It allows cooling down the wood in a controlled and safe environment.

Feature

  • Autonomous water injection system used for humidification
  • Flowmeter for the water injection system
  • Central ventilation system
  • Reversible air flow
  • Cooling system with heat recovery for heating the building

 

Specifications

External dimensions
(L x W x H)
334" x 89" x 102"
Cooling system
 capacity
165 000 Btu/h
Fan capacity 10 000 cfm
Fan motor 7,5 hp
Filter High-temperature
 reusable filter

Rail System

Related Equipments for the Realization of the Torrefaction Process.

This innovative rail system allows a single person to introduce and extract the cart with the load of wood in the biomass torrefaction oven and the steaming pit. This system allows the cart to move quickly and safely.

Feature

  • Robust rail structure
  • Remote Control
  • Easy handling
  • Safe design

 

Specifications

External dimensions
(L x W x H)
264" x 47" x 11"
Winch first
layer capacity
5 500 lb
@ 19,0 pi./minute
Winch second
layer capacity
4 400 lb
@ 22,3 pi./minute
Winch motor 3 HP
Remote control station
to the winch
50 feets
Cart wheel Ductile iron with
roller bearing

Retention Tank

Related Equipments for the Realization of the Torrefaction Process.

The retention tank allows the hot gases collected from the biomass torrefaction oven ton condense. The steam escaping from the retention tank is directed to the incinerator.

Feature

  • Electronic level probe
  • Solenoid ball valve for the water inlet.
  • Drain system.

 

Specifications

External dimensions
(L x W x H)
87" x 51" x 38"
Water level sensor Mercoid CRF2
Internal lining Stainless steel 304

Incinerator

Related Equipments for the Realization of the Torrefaction Process.

The incinerator burns the volatile organic compounds (VOC’S) and other contaminants escaping from the retention tank. The gases coming from the retention tank are burned to more than 800°C [1 500°F] eliminating the majority of contaminants.

Feature

  • Operating temperature of 800°C [1500°F]
  • Stainless steel construction
  • Temperature sensors
  • Independent control panel

 

Specifications

External dimensions
(Dia x W x H)
36" x 180" x 108"
Internal lining Stainless steel 304
Burner Capacity 2,000,000 Btu/h
Fuel Natural Gas or Propane

Gas Collecting Hood

Related Equipments for the Realization of the Torrefaction Process.

The hood can capture the evacuation of steam when opening the oven door at the end of the process. The hood, supply the steam to a filter section to remove impurities. The steam is then exhausted to the outside.

Feature

  • Hood with balancing system
  • Pre-filtering section
  • Filter section
  • Wall exhaust

 

Specifications

External dimensions
(L x W x H)
98" x 48" x 28"
Hood type With balancing
system
Prefilters High-temperature
reusable filter
Main filter Activated charcoal filter
Fan capacity 7000 cfm
Fan motor 3 hp
  • Heat Treated Wood Kiln

    (Montréal, Québec)

    Production of torrefied wood boards with unmatched temperature uniformity.

  • Post Processing Torrefaction Lumber

    (Montréal, Québec)

    Fully automated steaming pit for rewetting lumber.

  • Heat Treated Wood Kiln

    (Montréal, Québec)

    Integrated system including; wood kiln, steaming pit and emissions incinerator.

1 2 3

Download Brochure Contact

Get in touch

If you have any questions or request, please contact us by phone or by filling the form below.

Toll Free: +1-800-263-2303

Full Name(*)
Invalid Input

Organization
Please type your Company name.

Email(*)
Invalid Input

Phone(*)
Invalid Input

Message(*)
Invalid Input

Portal

 

Social