A method for replacing and installing converter equipment

Abstract

A split and inserting type converter device replacing and installing method is disclosed. The method mainly comprises following steps: dismantling a furnace body coaming; rotating the converter; cutting a converter shell into two parts in the converter, splitting and dismantling; splitting and dismantling a fully-suspended furnace tilting reducer; dismantling a bearing pedestal upper cover; dismantling a bracket ring; dismantling a lower bearing pedestal; installing, regulating and centering a lower bearing pedestal, conveying a lower cover of a furnace tilting reducer to a furnace tilting chamber in an upturned manner; assembling bracket ring trunnions, hoisting and installing; assembling the furnace body of the converter, hoisting, installing and regulating; installing spherical supports; and installing a skirt plate, then converter device replacing is completed. According to the method, a before-furnace steel structure platform having been completed is not dismantled, present bridge cranes and winches are utilized so that the investment cost of hoisting tools is not added, using of a large amount of steel structure materials is reduced, the method has no influence on production of other converters, furnace body assembling slag traps and other accessories are not dismantled, furnace body assembling accessories are installed in advance, a big gear wheel is installed in advance, and the method is short in actual construction time, high in operationality and suitable for converter device replacing.

Description

technical field [0001] The invention relates to a converter equipment replacement method, in particular to a dismantling and installation method applicable to the assembly of the furnace body of the converter in use, the assembly of the trunnion of the support ring, and the replacement of the furnace tilt reducer. Background technique [0002] At present, the replacement and installation of converter equipment mainly adopts the "lifting and sliding method" for the assembly of the converter body, the trunnion assembly of the support ring, and the assembly and replacement of the furnace tilt reducer. Its main feature is to use the metallurgical vehicle under the furnace to make and install the steel structure lifting platform , place the support ring on the platform, then hoist the furnace assembly to the support ring with a crane, lift until the trunnion bearing seat is higher than the steel structure base, then slide the converter to the installation position with a ground ve...

AI Technical Summary

Problems solved by technology

The main disadvantages are that the completed furnace front platform and steel structure facilities need to be dismantled, the amount of lifting tools is large, the steel structure jacking platform needs to be fabricated and installed in advance, the construction period is long, the construction investment is large, and there are many maintenance personnel, etc.

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