Prefabricated slide rail brick for heating furnace

Abstract

The invention discloses a prefabricated slide rail brick for a heating furnace. The brick is prepared from the following raw materials in a certain proportion: brown corundum particles, chromium corundum particles and powder, white corundum powder, alumina micro powder, pure calcium aluminate cement, silica powder and a composite water reducer, which are uniformly mixed to prefabricate an adobe, then the adobe is dried in a drying room at 200 DEG C, and cooled naturally to obtain a finished product brick body. The used raw materials and proportion of the slide rail brick prepared by the invention are scientific, the production process is simple, and the labor intensity of workers is reduced; the graduation of the raw materials is reasonable, the cement is hydrated when meeting water, and various raw materials can achieve the most compact accumulation to obtain a high-strength low-porosity adobe; the prefabricated adobe does not require high-temperature sintering, the energy is saved, the consumption and pollution are reduced, meanwhile, the strength of the slide rail brick as a finished product can be improved after the adobe is roasted at low temperature, and the service life of aslide rail is prolonged.

Description

technical field [0001] The invention relates to a refractory material, in particular to a prefabricated sliding rail brick for a heating furnace built on the bottom of the heating furnace. Background technique [0002] The heating furnace is the key equipment for rolling steel. The heating temperature is around 1100 °C. There are slide rails built at the bottom of the heating furnace. After the billet is heated in the heating furnace, it slides forward on the slide rails. Bricks should have good strength and wear resistance. [0003] At present, most of the slideway bricks used in heating furnaces are made of fused-cast zirconium corundum or zirconium mullite, but no matter which material, whether it is produced by vibrating press or prefabricated bricks, it needs to be fired at a high temperature of 1400~1500℃. The gas or natural gas used in the sintering will increase the cost of the product and cause pollution to the environment. In recent years, with the continuous imp...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the slide rail bricks used in heating furnaces are made of fused-cast zirconia corundum or zirconia mullite, but no matter what kind of material, whether it is a vibrating machine press or prefabricated brick, it needs to be fired at a high temperature of 1400~1500℃. The coal gas or natural gas used in firing will increase the cost of the product and cause pollution to the environment

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