Valmet Fibertech Ab

Christer S&auml;fstr&ouml;m

G&ouml;ran Lundgren

Carl-Johan S&ouml;derberg

Method is disclosed for treating wood chips including a heater for preheating the wood chips in the presence of steam, a beater to mechanically process the wood chips into wood fibers, a cyclone for separating the wood fibers from steam and volatile organic substances produced in the beater, a blower line for transporting the wood fibers, steam and volatile organic substances from the beater to the inlet of the cyclone, a drying conduit connected to the lower outlet of the cyclone for carrying wood fibers therefrom, a sluice valve associated with the lower outlet of the cyclone for controlling the removal of the wood fibers from the cyclone, and a processing conduit connected to the upper outlet of the cyclone for the steam and the volatile organic substances whereby the volatile organic substances separated in the cyclone can be separated and heat associated with the steam separated in the cyclone can be recovered.

Growing community of inventors

Stockholm, Sweden

Christer Säfström

Growing community of inventors

Stockholm, Sweden

Christer S&auml;fstr&ouml;m

Christer Säfström