It consists of single-effet, dubal-effect and tri-effect evaporators, single-effect, dual-effect and tri-effect separators, preheaters, condenser and hot pressure pump ect.

B. Low evaporation consumption, 1kg steam can evaporate 3.5kg water.

C. Low evaporation temperature. Part of twice steam can be inhaled into single-effect heater through spray type hot pressure pump. The heat quantity can be fully used and the evaporation temperature is low.

D. Large concentration ratio with downward film evaporation, which can make the viscous material liquid be easy to flow and evaporate, and hard to agglomerate. The time of concentration is short. The concentration ratio can reach 1:5