公开(公告)号：US4538552A

公开(公告)日：1985-09-03

申请号：US677635

申请日：1984-12-03

Applicant: Robert T. Smuda

Inventor： Robert T. Smuda

IPC: B08B1/00 ,  F23L1/00 ,  F28G1/08 ,  F22B37/48 ,  F23J3/00

CPC classification number: F23L1/00 ,  B08B1/00 ,  F28G1/08

Abstract: A primary air duct for a chemical recovery furnace is rectangular in cross section. Smelt accumulates on the walls of the air duct at the furnace end. A scraper structure is comprised of a pair of C-channels hinged together at one end. A mechanism moves the hinged scraper forward so it can be guided into scraping contact with the duct walls. The edges of the C-channels are guided by pin and groove engagement between the channels and the duct walls. The scraper is reciprocated from an inoperative position to a scraping mode by a rod to which force is applied.

Abstract translation: 用于化学回收炉的主空气管道是横截面矩形。 熔炉积聚在炉端的风道壁上。 刮刀结构由一端铰接在一起的一对C形通道组成。 一个机构向前移动铰接的刮刀，以便它可以被引导到与管道壁刮擦接触。 C通道的边缘由通道和管道壁之间的销和槽接合引导。 通过施加力的杆将刮刀从不工作位置往复运动到刮削模式。