Patent ID: 6929202

Claim:
A method for feeding a wood batch into a pressure grinder having a grinding element rotating in a continuously pressurized grinding chamber for grinding the wood, comprising the steps of: collecting the wood batch in a batch chamber; transferring the wood batch from the batch chamber into a side feeding chamber, which is pressurizable to the same pressure as the grinding chamber; moving the wood batch from the side feeding chamber into a feeding chamber where the wood batch during grinding is pushed into contact with the grinding element, wherein the wood batch is transferred substantially horizontally from the side feeding chamber into the feeding chamber in the direction of the rotation axis of the grinding element; wherein the batch chamber is arranged above the side feeding chamber, and the step of transferring the wood batch into the side feeding chamber comprises lowering said wood batch vertically by means of a separate supporting plate from the batch chamber to the side feeding chamber and only thereafter transferring it from the side feeding chamber into the feeding chamber.