Three-supporting surface prestress blocking seat mechanism of converter

Abstract

The invention belongs to the technical field of metallurgical machinery and discloses a three-supporting surface prestress blocking seat mechanism of a converter. The three-supporting surface prestress blocking seat mechanism of the converter mainly comprises a supporting ring, a converter shell, supporting ring blocking seats and a converter shell seat assembly, wherein the supporting ring blocking seats are welded on the supporting ring, the converter shell seat is welded on the converter shell, the upper parts of the supporting ring blocking seats of both sides are connected by a pretension pull rod and a linking member and are pretensioned inwards, the converter shell seat is clamped between the supporting ring blocking seats, the converter shell seat and the supporting ring blocking seats are provided with two lateral contact supporting surfaces, a longitudinal contact cushion block is additionally arranged between the supporting ring and the converter shell seat, and a longitudinal contact supporting surface is arranged between the supporting ring and the converter shell seat. The three-supporting surface prestress blocking seat mechanism effectively restricts a lateral gap and longitudinal elastic displacement of a converter body in the supporting ring, increases the operation stability of the converter, prolongs the service life, improves the reliability of the converter and is a novel technology with a popularization value on the converter.

Description

technical field [0001] The invention belongs to the technical field of metallurgical machinery, and discloses a three-support surface prestressed retaining seat mechanism for a converter. Background technique [0002] The converter is an important core equipment in the steelmaking process equipment, and the connection support system between the converter and the supporting ring is the core of the converter equipment, and the block mechanism is an important part of the connection support system of most converters. During the tilting process of the converter, it cooperates with various hanging mechanisms of the converter to play a role in the relative positioning of the furnace shell to the support ring, and part of the stop mechanism also bears the huge gravity and motion impact load of the converter body during the converter rotation process. Its working condition is very bad. It is the key mechanism most prone to safety and maintenance problems in this type of converter su...

AI Technical Summary

Problems solved by technology

In actual use, it is found that although the prestressed retaining seat can eliminate the lateral gap of the retaining seat, improve the safety of the converter retaining seat, reduce the impact during the operation of the equipment, and reduce the daily maintenance of the equipment, it has performed well. characteristics; however, the retainer ring seat 3 and the furnace shell seat 4 only provide two lateral restraint surfaces, which can only eliminate the impact of the side clearance when the converter rotates to around 90°

Theoretical analysis and actual testing show that due to the elastic deformation of the furnace shell 2, the support ring 1 and the furnace shell hanging mechanism, after the converter is reversed by 180°, the support ring retainer 3 and the furnace shell seat 4 are in contact with the supporting surface A There is a relatively large longitudinal relative displacement (theoretical analysis and actual test data are 8-14mm, depending on the size of the converter and the stiffness of the support ring). The ring 1 moves elastically along the axis of the furnace body longitudinally, aggravating the wear of the contact support surface A, and making abnormal noise during the wear process

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