Ladle molten-bath brick

Abstract

The invention relates to a ladle molten-bath brick, which contains the following raw materials: 68% of fused macrocrystalline magnesia with content being 95% and above and particle size being 0-5 mm, 15% of lithium trioxide, 12% of high-purity carbon, 2% of a metal antioxidant, 1% of a special additive and 3% of high-strength phenolic resin. The ladle molten-bath brick is prepared by the following steps: adding the above raw materials in order, uniformly mixing by a high-speed blender for a long time, and pressing by high-tonnage friction pressure so as to prepare the ladle molten-bath brick. The ladle molten-bath brick product prepared by the scheme has the following advantages: straight slits of operational layer are prevented; the product has good corrosion resistance, strong anti-erosion property and high thermal shock resistance, is convenient for construction, is energy-saving and environment friendly, and has long service life; consumption of a refractory material is greatly reduced; discharge of refractory industrial solid wastes is reduced; and the product also has remarkable effects in saving mineral resources and saving energy.

Description

technical field [0001] The invention relates to the technical field of molten pool bricks, in particular to a ladle molten pool brick. Background technique [0002] The ladle is the basic container for steelmaking to transport molten steel and LF, RH and other out-of-furnace refining. The molten pool brick is a kind of brick placed on the wall of the ladle. At present, the life of the ladle molten pool bricks produced by the prior art is low, which is one of several key common technical problems affecting the life and cost of the ladle lining refractory material. Since large domestic iron and steel enterprises have been involved in the smelting of special and special steels this year, the requirements for bricks on the wall of the ladle melting pool are getting higher and higher. Ordinary cast-type or machine-made molten pool bricks cannot meet the normal production needs of iron and steel enterprises at all. . Contents of the invention [0003] The technical problem to ...

AI Technical Summary

Problems solved by technology

At present, the life of the ladle molten pool bricks produced by the existing technology is low, which is one of several key common technical problems affecting the life and cost of the ladle lining refractory material

Since large domestic iron and steel enterprises have participated in the smelting of special and special steels this year, the requirements for bricks on the wall of the ladle melting pool are getting higher and higher, and the ordinary casting type or combined melting pool bricks after the mechanism cannot meet the normal production needs of iron and steel enterprises.