Kvaerner Pulping Ab

Jan Bergman

Lars Gunnar Olausson

Sven-Erik Jansson

Hans Sjoberg

Gustav Carlsson

Agneta Larsson

Tommy Eriksson

Lennart Lindau

Bengt Nyman

Christer Isaksson

Hans Sj&ouml;berg

The strainer arrangement is adapted for straining a liquid from a mixing arrangement, such as a mixing tank, containing black liquor including solid particles of ash. The strainer arrangement comprises a strainer pipe with axial gaps defined therein for permitting a radial inflow of liquid into the strainer pipe. An axially movable shaft is disposed inside the strainer pipe and has cleaning pins attached thereto that extend into the gaps.

Strainer arrangement for straining liquid from a mixing arrangement

A mixing apparatus for mixing black liquor from cellulose production with ash from flue gases which is generated on combustion of black liquor. The mixing apparatus contains a cylindrical tank, a stirrer mechanism having a propeller secured on the upper part of a vertical shaft, rotating baffles secured on the lower part of the shaft, and stationary, vertical, radial baffles arranged around, and at a distance from, the rotating baffles. The invention also provides a method for mixing black liquor and ash.

Mixing apparatus and method for mixing black liquor from cellulose

Recovery boiler

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Mölnlycke, Sweden

Jan Bergman