Arrangement for providing continuous grinding in a pulp grinder

摘要

PCT No. PCT/FI97/00781 Sec. 371 Date Jul. 22, 1999 Sec. 102(e) Date Jul. 22, 1999 PCT Filed Dec. 12, 1997 PCT Pub. No. WO98/27266 PCT Pub. Date Jun. 25, 1998An arrangement for providing continuous grinding in a pulp grinder comprising a feed chute and a piston in the feed chute moving lengthwise of the feed chute for pressing the wood in the feed chute against a grindstone. The arrangement comprises rotary feed members between the piston and the grindstone on the sides of the feed chute for pushing the compressed wood further against the grindstone. Also, the arrangement comprises a closing member that can be pushed between the compressed wood and the piston to prevent the wood from moving backward with the piston as the piston is moved to the initial position, ready for the stroke, to allow the feed of a new batch of wood.