Vertical cooler is one of the main equipment is thelime production line.Afer calcination the activelimeinflow to the vertical cooler with efractory brick on  the wall,the cooler with a square cut view,which wit cental coler funnel cap and chamber cooler finnelcap which was uniform distribute,there is a  pump to comet with the fan outside and adischarging holein the bottom of the the cole.There is a motor vibrating dicharging device perdicharging hole.   The material pileup on the fumel cap then the colair blowed bythe fan,though the chamber went into the fumel ap.After coming out from thefumnel cap.  the cool air transfered with the hot material,and finished the heat exchange,the material cool down and discharged under the help of the electrical  discharge machine vibration,and the cool air after heat by the hot material,went directly to he kin,as seconday air take par in the heat.one hoper Vibrating discharger control the quantity of discharge,and then control thethickness of the material in the cooler.