Replacement method of dust removal pipe for steelmaking workshop

Abstract

The invention provides a method for replacing a dust collecting pipeline in a steel smelting workshop. The method comprises the following steps: lengthening an old transverse beam of an old pipeline bracket, wherein the length of a first lengthened section of the old transverse beam is a first preset length, supporting an old dust collecting pipeline to be replaced by using the old pipeline bracket, and placing a dust collecting pipeline right above the old dust collecting pipeline; disconnecting the old dust collecting pipeline from the old transverse beam, and horizontally moving the old dust collecting pipeline to the free end of the old transverse beam; hoisting away the old dust collecting pipeline when the old dust collecting pipeline is moved to a first preset position; and mounting a new dust collecting pipeline. According to the method for replacing the dust collecting pipeline in the steel smelting workshop, by lengthening the old transverse beam of the old pipeline bracket, the old dust collecting pipeline can be horizontally moved along the old transverse beam, after the old dust collecting pipeline is moved to the first preset position, the old dust collecting pipeline is staggered with the dust collecting pipeline above the old dust collecting pipeline in the horizontal direction, the interference of the dust collecting pipeline to the old dust collecting pipeline when being hoisted out is avoided, so that the old dust collecting pipeline can be hoisted away, the new dust collecting pipeline can be mounted, and thus the replacement of the old dust collecting pipeline is completed.

Description

technical field [0001] The invention relates to the technical field of replacing dust removal pipes for steelmaking workshops, and more specifically, relates to a replacement method for dust removal pipes for steelmaking workshops. Background technique [0002] Liquid pig iron is used as raw material for steelmaking, usually using a converter, which is produced by the chemical reaction between the physical heat of the liquid pig iron in the converter and the components in the pig iron (such as carbon, manganese, silicon, phosphorus, etc.) and the oxygen sent into the converter The heat makes the metal reach the composition and temperature required for tapping. Furnace materials are mainly molten iron and slagging materials (such as lime, quartz, fluorite, etc.), in order to adjust the temperature, steel scrap and a small amount of cold pig iron and ore can be added. In the converter steelmaking process, the carbon in the molten iron and the blown oxygen at high temperature ...

AI Technical Summary

Problems solved by technology

This is bound to seriously affect the normal arrangement of production

If there are three converters in the project, there are three dust removal pipes. In order to ensure the normal production, only one converter can be stopped at a time for the three converters, and the dust removal pipes of the converter are replaced during the replacement process. There may be an upper dust removal pipe above the lower dust removal pipe that needs to be replaced. Due to the interference of the upper dust removal pipe, the lifting device cannot lift the lower dust removal pipe vertically, resulting in the failure to complete the replacement of the lower dust removal pipe.

Images