Sealing device for separator of vertical roller mill

Abstract

The invention relates to a sealing device for a separator of a vertical roller mill, which is applied to the building material industry, the metallurgical industry, the power plant industry, the chemical industry, the mine industry and the like and relates to engineering machines. In a separation process of the separator, two paths of seals are arranged between a rotor of the separator and a shell of the separator, the interior of the separator is sealed in positive pressure, the exterior of the separator is sealed in a combination manner in the form of a labyrinth, the labyrinth-shaped combined seal consists of an upper seal body and a lower seal body; and the upper seal body and the lower seal body are in a shape of circular ring, one end of each circular ring is a plane and the other end of the circular ring is provided with a plurality of trapezoid rings. The trapezoid rings of the upper seal body and the lower seal body are mutually inserted in opposite trapezoid slots, the circumferences of the trapezoid rings and the trapezoid slots are provided with intervals, the sinuate intervals are in the labyrinth-shaped combined seal. According to the sealing device for the separator of the vertical roller mill, disclosed by the invention, the pass possibility of wind through an interval between the rotor and the shell is completely avoided, the sealing effect is good, the structure is reasonable, and the assembly, the disassembly and the regulation are simple and convenient; and a machining manufacturing process is simple, the cost is low and the popularization application is convenient.

Description

technical field [0001] The invention relates to an engineering machine, which is specifically used for the sealing device used on the powder separator of the vertical roller mill used in the industries of building materials, metallurgy, power plants, chemical industry, mines, etc., and can also be used for other rotating machines with similar structures. seal. Background technique [0002] The working principle of the vertical roller mill is to use the force between the grinding roller and the grinding disc to crush the material on the grinding disc. The material to be powdered falls to the center of the grinding table through the feeding lock air valve and the feeding pipe, and the grinding table rotating at a constant speed disperses and flattens the material to be powdered outwards by means of centrifugal force to form a material bed of a certain thickness. The material is crushed by the grinding rollers on the grinding table. The crushed materials continue to move ...

AI Technical Summary

Problems solved by technology

At present, the combined blade seal used on the powder separator has poor sealing effect, resulting in air leakage and material running, and the adjustment of the blade seal is also difficult, resulting in unstable product quality.

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