Large-diameter rotary kiln dynamic and static sealing device for phosphorus sludge recovery

• Main Authors: LIAO LIANGDONG, WAN QINGCHENG, LU MINGQING, XIANG LIN, WAN ZHONGDE, QIN LIPENG
• Format: Patent
• Language: Chinese; English
• Published: 11.12.2020
• Subjects: BLASTING; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FURNACES; HEATING; KILNS; LIGHTING; MECHANICAL ENGINEERING; OVENS; RETORTS; WEAPONS

The utility model discloses a dynamic and static sealing device of a large-diameter rotary kiln for recovering phosphorus sludge, which is characterized in that a base, a vertical plate ring and a transverse plate ring in a labyrinth type sealing structure are welded into a cavity type sealing surface, and the transverse plate ring is welded with an inner sealing ring of a movable ring; a static ring sealing surface is arranged on the opposite surface of the movable ring inner sealing ring to form external sealing; a transverse sealing ring is transversely arranged at the lower part of the sealing surface of the static ring and extends into 4/55/6 position in a cavity type sealing surface formed by welding the base, the vertical plate ring and the transverse plate ring to form middle sealing; a lower sealing ring is welded to the lower portion of the transverse sealing ring, and tail sealing is formed by the lower sealing ring and the base. By adopting a labyrinth structure and a multi-stage packing sealing m