Solid acid and solid alkali neutralizer

A solid acid and solid alkali neutralizer comprises a U-shaped reaction kettle. Two spiral propellers are mounted inside two straight sections of the reaction kettle respectively, the propelling directions of the two spiral propellers are accordant to the advancing direction of materials, and each spiral propeller is driven by a motor. The improved neutralizer is designed in an inner shaft spiral propelling structure, and is a key device for sodium dichloroisocyanurate dihydrate products generated by reaction of dichloro acid with sodium bicarbonate. The solid acid and solid alkali neutralizer has the advantages that firstly, crushing of solid acid and solid alkali is achieved, and the contact area of the two reactants is widened, so that the reaction can be more complete and timely, secondly, acid and alkali feeding speed is adjusted by means of a speed adjusting motor, and accordingly materials can be continuously added into the neutralizer and continuous production is achieved, and thirdly, PH (potential o