国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC F23J015/06（2）
发明人
公开年
申请年 2021（2） 
专利权人

Denitration system for calcining alumina, has heat insulation layer whose bottom end is connected with reflux pipe connected with one end of heat exchange cavity.

GAO K, ZHANG W, JIA Z, ZHANG Z

Graphene corrugated pipe waste heat oil smoke filtering device for recycling device, has lower portion that is provided with waste gas inlet pipe whose lower end is connected with oil smoke filter.

JIANG Z, PAN D, LIU H