A reation kettle group that is used for long -term super -hydrophobic anti -pollution flashover paint of slowly -releasing type production, including the reation kettle body, the upper portion of reation kettle body installation rotating electrical machines and electric putter, the output shaft installation pivot of rotating electrical machines, the pivot lies in reation kettle, and this is internal, and the pivot is in vertical state, stirring board of mid -mounting of pivot, the utility model discloses an electric putter can drive the inner wall reciprocating motion of scraper at the reation kettle body to strike off the residual of reation kettle body inner wall fast, make the change of the interior temperature of reation kettle in time reach the desired temperature, improved the quality of goods. Avoid the corrosivity residual to cause the corruption to reactor inner wall, improved reation kettle and related parts's life.