Cinder valve packing sealing device

The utility model discloses a packing sealing device for an ash discharging valve, which is characterized by comprising a gland bolt (1), a packing gland (2), a valve plate (3), a packing box (4) and a packing layer (5), the packing layer (5) is positioned on the inner bottom surface of the packing box (4); the packing gland (2) is positioned above the packing layer (5); the packing gland (2) and the packing box (4) are fastened through a gland bolt (1); the packing layer (5) is pressed tightly through pretightening force provided by the packing gland (2) and the gland bolt (1), so that the packing layer (5) is tightly attached to the valve plate (3). The packing box and the packing gland are integrally machined, the specification of the packing layer located inside and the number of the gland bolts are adjusted and optimized, and then the gland bolts provide pre-tightening force to press packing, so that the purpose of reliable sealing is achieved, on-site ash leakage is prevented, and environmental protecti