When working, the ash and slag in the silo will be uniformly sent to the cylinder by the impeller feeder, the blade will push the ash and slag forward, and the water supply nozzle will add an appropriate amount of water to stir and force mixing. In the process of mixing, a certain gap between the cylinder wall and the stirring shaft is maintained to push the material to the discharge, which has the characteristics of compact structure, advanced technology, stable and reliable easy maintenance.