牙轮钻机除尘水管道防冻解冻装置采用湿式除尘的牙轮钻机在高寒地区作业，冬季经常出现除尘管道冻结的故障。通常采用管外包缠电阻加热带的办法来预防，但其成本高，使用寿命短（电阻丝公断），维护不方便，拆检一次外包保温材料将全部破损，故障率高。新的防冻解冻方法是... Dental Drill Dusting Pipe Antifreeze thawing device using wet dust removal of the roller rig in the alpine region operations, often appear in winter, the dust pipe freezing failure. Usually wrapped with a tube of resistance heating tape to prevent, but its high cost, short service life (resistance wire off), maintenance inconvenient, dismantling an outsourced insulation material will be all damaged, the failure rate is high. The new antifreeze thawing method is ...