Self-flowing castable prepared from blast furnace iron runner cover waste and preparation method thereof

Abstract

The invention discloses a self-flowing castable prepared from blast furnace iron runner cover waste and a preparation method thereof. The self-flowing castable is prepared from the following components in parts by mass: 15-25 parts of iron runner cover waste, 30-60 parts of brown fused alumina clinker, 10-20 parts of white fused alumina, 15-25 parts of silicon carbide, 4-9 parts of silica powder,5-10 parts of activated alumina powder, 3-8 parts of pure calcium aluminate cement, 3-5 parts of an expanding agent, 0.5-1 part of a water reducing agent and 0.05-1 part of an anti-explosion agent. The preparation method of the self-flowing castable comprises the following steps: selecting materials, crushing, screening, mixing, packaging and warehousing. According to the invention, the waste blast furnace iron runner cover material is recycled, the production cost is reduced, the compactness and strength of the castable after pouring are improved, the erosion resistance is enhanced, the service life of the iron runner cover is prolonged, and the preparation method is simple and suitable for industrial popularization.

Description

Technical field [0001] The invention relates to the technical field of refractory materials, in particular to a self-flowing castable prepared by using waste material of a blast furnace iron trench cover and a preparation method thereof. Background technique [0002] Large and medium-sized iron and steel enterprises have a large number of blast furnace iron trench covers that are discarded every year due to furnace demolition, which is bound to produce a large amount of waste refractory materials. These discarded refractory materials used as garbage are not only huge in quantity, but also extremely difficult to dispose. Except for a few that can be returned to the production line for reuse, most of the discarded refractory materials are typically treated by burying or degrading. In this way, not only do companies need to buy land to accumulate or bury these increasing amounts of waste, which increases production costs, but also causes a great waste of resources and serious enviro...

AI Technical Summary

Problems solved by technology

In this way, not only enterprises need to buy land to accumulate or bury these increasing waste materials, which increases production costs, but also causes a great waste of resources and serious environmental pollution

[0003] In order to reduce the cost of raw materials for iron trench castables and respond to the national call for energy conservation and emission reduction, waste materials are reused in iron trench castables, which greatly reduces the cost of raw materials. , poor compactness, weak slag erosion resistance and other shortcomings, it is difficult to meet the normal production needs