Based　on　the　empirical　constant　value　of　the　thermal　physical　parameters　of　sinter,　this　paper　combines　experimental　measurement　and　finite　element　simulation　to　study　the　equivalent　thermal　conductivity　of　sinter　and　establish　a　heat　transfer　model　suitable　for　the　cooling　process　of　sinter.　The　influence　of　the　empirical　value　and　the　change　value　on　the　cooling　process　is　analyzed　by　analyzing　the　thermal　property　parameters　of　the　sinter.　The　effects　of　sinter　size　and　inlet　air　temperature　on　the　cooling　process　are　investigated　by　using　varying　thermal　physical　parameters.　The　results　show　that　the　smaller　the　particle　size　is,　the　higher　the　inlet　air　temperature　is,　and　the　higher　the　waste　heat　utilization　rate　of　the　outlet　heat　exhaust　gas　is.　©　Published　under　licence　by　IOP　Publishing　Ltd.