Valmet Technologies Oy

Kvaerner Pulping Oy

Kari Mäkelä

Jouni Kinni

Esa Pikkujamsa

Juha Ojanperä

Heikki Airikkala

Kari Kuukkanen

Ari Kokko

Pertti Petänen

Kalle Hannula

Keijo Salmenoja

Jere Fabritius

A scrubber for exhaust gas cleaning onboard a marine vessel, comprising a scrubber shell () forming a scrubber chamber; and a tubular pipe () running through the scrubber shell for feeding scrubber liquid into the scrubber chamber; a concave bowl () for connecting the tubular pipe to the scrubber shell, the concave bowl having the shape of a solid of revolution, and the shape curving smoothly from the rim () of the concave bowl to the bottom () of the concave bowl. The tubular pipe runs through the bottom of the concave bowl in such a way that the bottom encircles the tubular pipe, and the tubular pipe and the bottom are connected to each other. The concave bowl is placed in an opening () in the scrubber shell in such a way that the scrubber shell encircles the rim of the concave bowl, and the scrubber shell and the rim are connected to each other.

Scrubber for exhaust gas cleaning

A method for reducing corrosion of a superheater of a steam boiler. The superheater includes a superheater piping. The superheating piping includes a steam pipe where the steam to be superheated is directed. The steam pipe is separated by a protective shell having a surface settling in the flue gas space has a temperature that rises above an upper critical temperature, above which temperature in the flue gas space the compounds from the fuel are substantially in a gaseous form. A superheater of a steam boiler and a circulating fluidized bed boiler.

Structure of a super heater

Method of reducing corrosion in a power boiler of a pulp mill using biofuel and suspended matter obtained from the waste water treatment of the mill. In the method flue gases obtained from a waste heat boiler are fed into the power boiler, causing the sulfur dioxide contained in them to react with the alkali chlorides in the boiler and the chlorine to form hydrogen chloride.

Method of reducing corrosion in a power boiler of a pulp mill

Growing community of inventors

Kangasala, Finland

Kari Mäkelä