Vertical mill powder concentrator labyrinth sealing structure

Abstract

The invention relates to a vertical mill powder concentrator labyrinth sealing structure. The vertical mill powder concentrator labyrinth sealing structure comprises a powder concentrator shell and acage wheel arranged in the powder concentrator shell; a loop of a sealing wide plate is arranged at the position of a rotary part on the cage wheel; a fastening bolt is arranged at the corresponding position of the powder concentrator shell; and a pressing plate is arranged on the fastening bolt. In the vertical mill powder concentrator labyrinth sealing structure, a sealing plate made of a composite rubber material is arranged through the pressing plate and the fastening bolt, the sealing plate is soft in texture, and the sealing plate can effectively form a soft connection sealing form withthe sealing wide plate arranged on the cage wheel, so that the sealing effect is achieved; furthermore, even if the conditions of axial jumpiness, eccentricity and the like exist, the steel plate andthe sealing plate on the cage wheel can be guaranteed not to be worn and the sealing effect can be guaranteed; and an arc-shaped long waist hole is formed in the sealing plate and the sealing plate can effectively adjust the position of the sealing plate through the fastening bolt and the pressing plate, so that the sealing effect is enhanced and adjustment can be conducted even if abrasion occurs.

Description

technical field [0001] The invention relates to a novel labyrinth structure of a vertical mill powder separator, which belongs to the technical field of production equipment in cement, metallurgy, coal, electric power and other industries. Background technique [0002] As an important supporting equipment of the grinding system, the powder separator has been used for more than 100 years. Although it does not have the function of grinding materials, its performance directly affects the operating state of the system, that is, it affects the grinding efficiency and energy consumption of the system. and the quality of the product. With the continuous update of the grinding process system, the structure of the powder classifier is also constantly innovating. [0003] The failure of the seal between the cage wheel and the shell of the powder classifier is one of the reasons for the coarse particles in the product. The coarse powder is mixed into the fine powder, which has a great...

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Problems solved by technology

[0003] The failure of the seal between the cage wheel and the shell of the powder classifier is one of the reasons for the coarse particles in the product. The coarse powder is mixed into the fine powder, which has a great impact on the product quality and the grinding efficiency of the system.

When the powder classifier is running, there is relative movement between the sealing ring on the housing and the rotor. The original structure is easy to wear after long-term use. After wearing, the gap becomes larger, and some coarse powder particles directly enter the finished product without going through the powder classifying process. area, resulting in excessive sieve residue, affecting the grinding fineness and grinding efficiency

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