Brief Introduction
Carbon Brick is a kind of neutral refractory material that can resist high temperature erosion, which are manufactured with carbonaceous as the raw material and added suitable binding agent. Carbon Brick can be used in the blast furnace to built furnace bottom and hearth with its features of good thermal shock resistance and low thermal coefficient of expansion.
Manufacturing Process
Carbon Bricks Manufacturing Process is similar to other refractory fire bricks’. But it is necessary to prevent carbon oxidation in the high temperature. So all the firing for the raw materials and products must be produced in the reducing atmosphere. Calcine anthracite to eliminate volatile components, sulfur content, and moisture before using. And improve the anthracite’s volume stability, mechanical strength, and inoxidizability. Dry coke to avoid the crack in the firing process caused by much more moisture contained. Fuse pitch and dry it in the temperature between 120~160℃ till its moisture is lower than 0.2%.Features
Carbon Bricks have properties of good thermal shock resistance, low thermal coefficient of expansion, high-temperature resistance, and resisting erosion from all kinds of acid, alkali, salt and organic solvent. Carbon Brick is easily oxidized in the oxidizing atmosphere.
Application
Carbon Bricks are widely used in the metallurgical industry, of which carbon bricks are more used in the blast furnace. Many blast furnaces’ furnace bottom and hearth are built with carbon bricks.Carbon Bricks also can be used for pickling bath, plating bath in the electroplating industry, for the dissolving tank in the paper manufacturing industry, for the reactive tank and storage tank in the chemical industry, and for the autoclave in the petrochemical industry.