Valmet Corporation

Metso Paper Inc.

Pekka Haikkala

Jouko Hautala

Olli Tuovinen

Heikki Liimatainen

Kari Parssinen

Simo Setala

Simo Setälä

Simo Set&auml;l&auml;

Kari Harakkamäki

Kari P&auml;rssinen

A method of feeding a wood batch into a pressure grinder, the method comprising first collecting the wood batch to be fed into the grinder into a separate batch chamber above a side feeding chamber, from which the wood batch is lowered vertically by means of a separate supporting plate to the side feeding chamber. Thereafter, the wood batch is transferred from the side feeding chamber into the feeding chamber. An arrangement for feeding a wood batch into a pressure grinder comprises a batch chamber above a side feeding chamber and in which the wood batch to be fed into the pressure grinder is formed before it is lowered into the side feeding chamber.

Method and arrangement for feeding wood batches into a pressure grinder

An arrangement in a pulp grinder comprising a grindstone (,), a feed chute (,), and a piston to feed wood (,) against the grindstone (,). The arrangement comprises separate pushing members (,), which are arranged to push the wood (,) against the grindstone (,) at essentially the entire width of the feed chute when the percussion piston is moved back to the stroke position to allow the feed of a new batch of wood.

Arrangement in a pulp grinder

Arrangement for providing continuous grinding in a pulp grinder

Arrangement for feeding wood in a pulp grinder

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Siivikkala, Finland

Pekka Haikkala