Rotary body combined seal device

Abstract

The invention provides a rotary body combined seal device and belongs to the field of metallurgical reduction system rotation cooling machines. The seal device is combined by a packing, a V-shaped fabric rubber seal ring and a seal connecting part. The seal connecting part is in friction ring radial seal. The packing and the seal connecting part are respectively disposed at two ends of the V-shaped fabric rubber seal ring to form a first sealing barrier for blocking most dust and air out of the V-shaped fabric rubber seal ring. The V-shaped fabric rubber seal ring can be adjusted and compacted to perform radial expansion so as to closely attach to a rotation cylinder, and gas seal is achieved. An elastic material cover of a radial elastic floating form can eliminate or reduce vibration, caused by radial runout of the rotation cylinder, of the V-shaped fabric rubber seal ring. The rotary body combined seal device is simple in structure, tight in seal, and suitable for gas seal of a head cover and a tail cover of a material reduction rotation cooling machine.

Description

technical field [0001] The invention relates to a reduction roasting cooling device, in particular to a rotary body combined sealing device. Background technique [0002] In the manganese oxide reduction roasting system, MnO 2 After calcination, it is reduced to MnO, but because MnO is extremely unstable, it reacts with oxygen at temperatures above 80 °C and re-oxidizes to MnO 2 , so MnO cannot contact the air during the cooling process. Usually, most manufacturers use rotary coolers for cooling. In order to ensure its reduction rate, the sealing between the cooling head cover and the rotating cylinder and between the cooling machine tail cover and the rotating cylinder must be Tight and reliable. At present, the sealing structure adopted by the manufacturer includes the labyrinth seal or the fish-phosphorus sheet seal, and the sealing surface of such a sealing structure has a large gap, a high air leakage coefficient, and an unreliable seal, which affects the reduction of...

AI Technical Summary

Problems solved by technology

[0002] In the manganese oxide reduction roasting system, MnO 2 After roasting, it will be reduced to MnO, but because MnO is extremely unstable, it will be re-oxidized to MnO by reacting with oxygen at a temperature above 80°C 2 , so MnO cannot contact air during the cooling process. Usually, most manufacturers use a rotary cooler for cooling. In order to ensure the reduction rate, the seal between the cooler head cover and the rotary cylinder and between the cooler tail cover and the rotary cylinder must Strict and reliable

The sealing structure adopted by the current manufacturer is a labyrinth seal or a fish phosphorus seal, and the sealing surface of this type of sealing structure has a large gap, a high air leakage coefficient, and unreliable sealing, which affects the reduction of the reduction rate.

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