Fish albumen drained from the oil-water separator is pumped into a bucket and heated to 85??and then ,it is fed into the stageàòevaporator.With the gravity force ,fish water flows dowmward through a distributor and at the same time it is heated by the steam comes from stageà?,thereafter,the water evaporates under vacuum.Waste steam is separated from the fish-water by using of the separator when the mixture of gas and liquid is falling dowm.After that,water steam is led into a coagulator,and fish water goes on being concentrated in the stageàò,and then flows into the stageà?after reaches to a certain density.Circulating pumps in stageà?is led into stageàòas a heating media.If the density of fish water in stageà?has reached to 28-34%,the concentrated water is sent into the concentrating water station and mixed with the press cake,thereafter ,they are sent into a drier and become the products