Stirring shaft sealing device

• Main Author: WANG XINGPEI
• Format: Patent
• Language: English
• Published: 18.11.2015
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The invention discloses a stirring shaft sealing device arranged on a top cover of a blending tank. A through hole is formed in the top cover. A stirring shaft is arranged in the blending tank in a mode of rotating around the axis of the stirring shaft. The sealing device comprises a liner set for filling of the interval between the through hole and the stirring shaft. The liner set comprises a first liner surrounding the periphery of the stirring shaft, and a second liner clamped between the first liner and the wall of the through hole, and part of the second liner wraps the lower end of the first liner. The first liner is attached to the stirring shaft and the second liner is spaced from the stirring shaft. The sealing device further comprises a compression mechanism, and the compression mechanism is arranged on the top cover and used for compressing the first liner. The double layers of liners are arranged between the through hole and the stirring shaft, the first liner on the inner side is attached to the stirring shaft for sealing, and the second liner on the outer side and the compression mechanism are used for preventing the first liner from moving vertically, so that a good sealing effect is achieved. The stirring shaft sealing device is simple in structure, convenient to replace and good in sealing effect.