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Sealing device for separator of vertical roller mill

A technology of vertical roller mill and sealing device, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc. It can solve the problems of difficult blade seal adjustment, unstable product quality, and poor sealing effect, so as to facilitate popularization and use , Disassembly and adjustment are simple and convenient, and the structure is reasonable

Inactive Publication Date: 2012-08-15
徐州飞煌重型机械厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Sealing device for separator of vertical roller mill
  • Sealing device for separator of vertical roller mill
  • Sealing device for separator of vertical roller mill

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] like figure 1 , figure 2 Shown: a sealing device used on a powder classifier of a vertical roller mill. In order to ensure that all the mixed materials in the powder selection area are sorted by the cage-shaped rotor blades, the distance between the rotor 3 of the powder classifier and the shell 14 of the classifier is There are two seals between them, and the sealing device includes: a radial annular sealing plate 1, an axial annular sealing plate 2 and a combined sealing device arranged between the diaphragm 7 in the casing and the rotor 3 of the powder classifier; the radial It is connected with the fixed plate 4 to the periphery of the annular sealing plate 1, and the fixed plate 4 is installed on the transverse partition plate 7 in the casing. The lower end of the axial annular sealing plate 2 is fixed on the upper end of the rotor 3 of the powder separator; there is a gap between the radial annular sealing plate 1 and the axial annular sealing plate 2 . A p...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/08B02C15/00F16J15/447
Inventor 张玉龙朱象
Owner 徐州飞煌重型机械厂
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