Valmet Evaporation Optimizer

Valmet Evaporation Optimizer maintains desired dry solids content profile over the evaporation train by coordinating the feed-, medium-, and strong liquor dry solids controls.

Efficient chemical circulation in pulp production

Features

The application concentrates on the water evaporation capacities of different effects and the boiling point rise in the concentrators. The raw soap extraction process is controlled for the increased process efficiency. Stable strong black liquor quality is achieved at low specific heat consumption. The washing intervals are longer.

Controls

Single button management of evaporation
Low and intermediate pressure steam
As-fired liquor dry solids
Strong black liquor dry solids content
Intermediate black liquor tank level
Vacuum
Feed liquor dry solids content
Foaming prevention
Soaping
Evaporation efficiency calculation and reporting
Fouling calculation and reporting

Benefits

Decreased fouling, extended washing intervalls
Stable black liquor dry solids
Decreased specific energy consumption - achieved energy savings

Customer success stories

Evaporation optimization increases efficiency at SCA Obbola

SCA Obbola utilizes the Valmet Evaporation Optimizer to increase the efficiency and to generate energy savings while keeping the burning liquor dry solids high and stable.