Lundberg, LLC products

Lundberg offers full sets of evaporators including integrated concentrator and condensate stripping systems as appropriate. The systems that we offer are designed to handle the particular nature of the liquor involved, from the easiest softwood liquor to the most difficult of liquors including bagasse and wheat straw. We provide systems for all types of cooking processes including kraft, sulfite and soda based systems. All of Lundberg’s evaporator systems are of tubular design. We consider a number of factors in the design of an evaporator system to provide the best solution for the liquor involved, including economy, scaling tendencies and desired product solids.

Lundberg provides black liquor concentrator systems to solids in excess of 80%. These systems may be stand-alone, integrated with a multiple effect evaporator system or integrated with a pre-evaporation system.

Pre-evaporation systems utilize low-level waste heat to evaporate weak liquor prior to the main evaporator train. Three heat sources are most often utilized in a pre-evaporator system: heat from a blow heat system, heat from a stand-alone concentrator, or heat from a continuous digester extraction liquor flash tank. The amount of evaporation achievable is dependent upon both the quantity of heat available and the number of effects in the system. Whenever a pre-evaporator is installed, its impact on the existing multiple effect evaporator system must be considered, in particular the effect of the higher feed solids.

Lundberg provides surface condenser systems as part of the overall Evaporator product group.