Fatty acid crystallizing tank

The utility model relates to the field of grease production equipment, and discloses a fatty acid crystallizing tank which comprises a tank body and a stirring piece, a cooling mechanism is arranged in the tank body, the stirring piece is used for stirring fatty acid in the tank body, the cooling mechanism comprises an upper annular pipe, a lower annular pipe and a plurality of cooling pipes, and the upper annular pipe is communicated with the lower annular pipe through the cooling pipes. The cooling pipes are distributed in a ring shape, the number of the rings is an integer not smaller than one, the centers of the rings are located on the axis of the upper annular pipe, a water inlet pipe is arranged at the top of the upper annular pipe and connected with a water inlet of the tank body, and a water outlet pipe is arranged at the bottom of the lower annular pipe and connected with a water outlet of the tank body. The crystallization tank disclosed by the utility model has the beneficial effects that the crys