Metso Paper Inc.

Valmet Technologies Oy

Valmet Technologies, Inc.

Hannu Turpeinen

Antti Poikolainen

Janne Lappi

Jarmo Kirvesmäki

Sami Anttilainen

Riikka Antikainen

Ilkka Kemiläinen

Ilkka Kemilaeinen

Jarmo Kirvesmaeki

Juha Kovanen

Kari RÄISÄNEN

Jussi Vasara

A headbox apparatus of a paper machine or equivalent has a body (). Dilution water (arrow L) is conducted through at least two rows of ducts (aa. . . ) into each body mixing chambers (aa. . . ). Each mixing chamber (aa. . . ) is limited by vertical walls (T), a bottom wall (T) and a covering wall (T), and a partition wall (aa. . . ). The ducts (aa. . . ) on the inlet side of the mixing chamber extend into the mixing chamber (aa. . . ) at a distance (h) from the ducts (aaa. . . ) on the outlet side of the mixing chamber (aa. . . ), whereby an annular gap (D) is left between the aligned duct (aaaa. . . ) on the inlet side and the duct (aaaa. . . ) on the outlet side. Each mixing chamber (aa. . . ) is filled by dilution water which is conducted through the annular gap (D) to join the stock (m).

Apparatus in connection with a headbox of a paper machine or equivalent

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Jyväskylä, Finland

Hannu Turpeinen