5层(10~15?小时(/span>特点:静态烘干、破损率小,节能降耖/span>应用范围用于兰炭、焦炭等炭材的烘幱/span>7层(15~18?小时(/span>特点:静态烘干、破损率小,节能降耖/span>应用范围用于兰炭、焦炭等炭材的烘幱/span>