Mechanical sealing device for high-viscosity ball mill

Abstract

The invention provides a mechanical sealing device for a high-viscosity ball mill. The mechanical sealing device comprises a shaft sleeve, a primary sealing assembly, a spacer fluid pumping assembly and a secondary sealing assembly, wherein the shaft sleeve sleeves a rotary shaft; the primary sealing assembly comprises a first movable ring assembly and a first static ring assembly; the first movable ring assembly comprises a first movable ring, a first movable ring base for inlaying the first movable ring, and a first spring; the first static ring assembly comprises a first static ring and a sealing pressure cover; the sealing pressure cover, the first static ring, the first movable ring and the shaft sleeve define a first channel; the spacer fluid pumping assembly is used for conveying spacer fluid into the first channel; and the secondary sealing assembly is used for sealing the pumping ring. According to the mechanical sealing device provided by the invention, spacer fluid is introduced into a friction pair of the primary sealing assembly, and the spacer fluid flushes a high-viscosity medium near a sealing surface into a medium container, so that the high-viscosity medium is effectively prevented from being adhered and cured near the sealing friction pair; and meanwhile, the spacer fluid simultaneously realizes a lubricating function, a flushing function and a cooling function for a primary sealing surface and a secondary sealing surface.

Description

technical field [0001] The invention relates to a mechanical sealing device of a high-viscosity ball mill. Background technique [0002] A mechanical seal is a shaft seal for rotating machinery, commonly used in equipment such as centrifugal pumps, centrifuges, reactors, and compressors. The mechanical seal device is composed of a pair or several pairs of sealing surfaces that are perpendicular to the rotating shaft for relative sliding. Under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of auxiliary seals, it is formed to prevent fluid leakage. installation. [0003] However, in a high-viscosity ball mill, the medium in the ball mill is a high-viscosity medium material, such as graphene and carbon nanotubes. Its high-viscosity characteristics make it easy to bond and solidify on the solid surface. It is usually mixed with the medium solution Grinding in a ball mill, once the high-viscosity medium ...

AI Technical Summary

Problems solved by technology

[0003] However, in a high-viscosity ball mill, the medium in the ball mill is a high-viscosity medium material, such as graphene and carbon nanotubes. Its high-viscosity characteristics make it easy to bond and solidify on the solid surface. It is usually mixed with the medium solution Grinding in a ball mill, once the high-viscosity medium enters the mechanical seal, without the mixing of the medium solution, it is easy to bond and solidify on the friction pair, thus affecting the sealing performance and effect of the friction pair, making the traditional mechanical seal device in high It is difficult to apply in the case of viscous medium

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