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SYSTEM AND METHOD FOR DRYING WOOD PRODUCTS WITH RECOVERED FLUE GAS

  • US 20110219640A1
  • Filed: 03/11/2010
  • Published: 09/15/2011
  • Est. Priority Date: 03/11/2010
  • Status: Active Grant
First Claim
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1. A method for drying wood products with recovered flue gas comprising the steps of:

  • providing an indirect fired kiln containing the wood products, the indirect fired kiln comprising;

    one or more chambers;

    one or more heating zones within the one or more chambers;

    one or more heating elements located in the one or more chambers; and

    a ventilation system;

    providing one or more combustion devices, each of the one or more combustion devices comprising an exhaust stack;

    firing a fuel in the one or more combustion devices, thereby producing a heated fluid and a flue gas;

    circulating the heated fluid in one or more heating elements, thereby providing a primary heat source to the kiln;

    recovering an amount of the flue gas before the flue gas is discharged from the exhaust stack in each of the one or more combustion devices;

    transferring the amount of flue gas to one or more of the ventilation systems to provide a secondary heat source to the indirect fired kiln; and

    drying the wood products in the indirect fired kiln.

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