Efficient adhesion type high-titanium furnace protection stemming

Abstract

The invention discloses efficient adhesion type high-titanium furnace protection stemming, which is prepared from the following ingredients in percentage by weight: 8 to 12 percent of bauxite, 3 to 7 percent of brown fused alumina, 22 to 32 percent of titanium-containing materials, 10 to 14 percent of iron silicon nitride, 6 to 10 percent of silicon carbide, 10 to 15 percent of coke, 6 to 12 percent of tar, 0.5 to 3 percent of pyrophillite, 2 to 5 percent of asphalt, 1 to 5 percent of cyanite, 3 to 7 percent of sericite, 0.5 to 4 percent of resin and a certain amount of crystalline flake graphite. Compared with a conventional titanium-containing stemming, the efficient adhesion type high-titanium furnace protection stemming has the advantages that the titanium content is high; the titanium-containing materials, particularly titanium pigments have good reaction activity, and can sufficiently react with other substances for forming caulking substances; due to the ultrafine granularity, the stemming can easily float up to a furnace cylinder erosion region in a furnace cylinder; flake graphite is introduced; good floating performance, lubricating performance and plasticity are realized; the stemming can be combined with generated high-temperature-resistant caulking particles such a TiC, TiN and Ti(C,N); the particles are carried for better entering the erosion region to be effectively filled into the seams; the effective furnace protection effect is achieved.

Description

【Technical field】 [0001] The invention relates to the technical field of furnace-protecting blasthole clay, in particular to a high-efficiency adhesion type high-titanium furnace-protecting blasthole clay. 【Background technique】 [0002] Blast furnace ironmaking is an important link in iron and steel production. With the large-scale blast furnace, high smelting strength, and the discharge of large amounts of slag and iron, the requirements for the quality of blasting mud for blocking iron ports are getting higher and higher. When the blast furnace does not produce molten iron slag, the blast furnace mud is filled in the tap hole to maintain a sufficient depth; when the blast furnace taps iron, the center of the blast furnace mud in the tap hole is drilled out of the tunnel, and the molten iron slag is discharged out of the furnace through the tunnel. The gun mud is required to keep the hole diameter of the iron hole stable, the iron tapping is uniform, and the molten iron sl...

AI Technical Summary

Problems solved by technology

With the continuous strengthening of blast furnace smelting, domestic blast furnaces, especially in the late age of blast furnaces, have serious corrosion on the side walls of the hearth in the iron mouth area and the iron mouth area, and the side wall temperature is too high, which not only poses a threat to the normal operation of the blast furnace, but also affects the normal operation of the blast furnace. production, and seriously affect the realization of the goal of blast furnace longevity. In order to ensure the safe production of blast furnaces, protect the parts around the taphole and the hearth, and reduce the erosion of the taphole brick lining, it is necessary to propose a high-efficiency adhesive high-titanium furnace protection Cannon clay