Crystallizer is a kind of chain plate shape machine,used for the production of sodium silicate,which was composed by the chain wheel,chain plate,materials silo,drive wheel,driven wheel,and also the roller.The roller make use of water cold structure,the material silo make use of water spraying cold structure.The construction is slope conveying style.The melten glass dicharged from the furnace flows on the chain plate,and then conveyed by the crystallizer to the end of the crystallizer and get into the trapezoid hopper,The diamension of the final product is 40mm*40mm*35mm proximitely like Pyramid.The speed of the crystallizer could be adjusted,stable conveying,wide production area, stable product quality.it is the preferred equipment used for conveying the solid sodium silicate.