Purging device of denitration equipment

The utility model discloses a purging device of denitration equipment. The purging device comprises a rake type purging device for purging, a purging pulley block with a movable rake type purging device for translation and a purging power device for driving the purging pulley block. The device adopts a pulley block transmission mechanism to drive the purging head to translate, is simple and compact in structure, is suitable for narrow and small space, is provided with a unique rake type purging device, can be connected with different purging sources, and can conveniently adopt different purging modes according to different working conditions; the purging wiping head fixed with the high-temperature-resistant cotton cloth can adopt a contact wiping mode, so that purging is more thorough; thepurging power device adopts a stepping motor, so that the purging translation distance can be accurately controlled, and the interference between a purging head and a pulley or equipment is avoided;the high-temperature hose