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Furnace door brick for tapping nozzle

A technology of furnace door bricks and steel nozzles, which is applied in the field of furnace door bricks for tapping nozzles, can solve the problems of smelting work influence, low cost performance, unsatisfactory lifespan, etc., achieve extensive safe operation and use, reduce costs, and benefit safety The effect of production

Inactive Publication Date: 2016-02-10
德清县钢友耐火材料有限公司
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Problems solved by technology

[0002] During the smelting and production of domestic AOD furnaces, the traditional refractory materials at the tapping part (tap nozzle) are severely lost after being washed intermittently by molten steel, which affects the smelting work. In order to ensure production, a large number of continuous repairs are often carried out, and even the furnace is shut down for overhaul
At present, in order to improve the service life of the tapping nozzle of AOD furnace, various high-grade refractory castables are mostly used in three forms: ramming, pouring and integral prefabricated blocks. Solve the above problems by combining the two processes of machine-pressed refractory products and prefabricated molding

Method used

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  • Furnace door brick for tapping nozzle

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Embodiment Construction

[0016] Combine below figure 1 Specific description embodiment:

[0017] A furnace door brick for a tapping nozzle, characterized in that the furnace door brick for a tapping nozzle includes a prefabricated refractory castable block 1, and a water outlet groove is provided on the inner side of the upper end of the prefabricated refractory castable block 1 2. A trough-type magnesia-carbon brick 3 is provided in the outlet tank 2, and a magnesia-carbon safety brick 4 is provided between the trough-type magnesia-carbon brick 3 and the prefabricated refractory castable block 1, and the refractory castable The material prefabricated block 1 is provided with an arc-shaped rebar 5 and two straight rebars 6, the arc-shaped rebar 5 is consistent with the radian of the outlet tank 2, and the two straight rebars 6 are symmetrically distributed in the arc On both sides of the rebar 5, the two straight rebars 6 are in contact with the curved rebar 5.

[0018] Preferably, the trough-type m...

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Abstract

The invention belongs to the technical field of refractory brick tools and particularly relates to a furnace door brick for tapping nozzles. The furnace door brick comprises a refractory castable-prefabricated block. A water outlet channel is formed in the upper end of the refractory castable-prefabricated block. A channel magnesia carbon brick is disposed in the water outlet channel. A magnesia carbon safety brick is disposed between the channel magnesia carbon brick and the refractory castable-prefabricated block. An arc deformed rebar and two straight deformed rebars are disposed in the refractory castable-prefabricated block. The arc deformed rebar is as cambered as the water outlet channel. The straight deformed rebars are symmetrically disposed on two sides of the arc deformed rebar and contact with the arc deformed rebar. The furnace door brick has the advantages that the lifetime problem of domestic tapping nozzles is solved successfully and the cost is reduced. The furnace door brick is widely applicable to safety operations.

Description

technical field [0001] The invention belongs to the technical field of refractory brick appliances, in particular to a furnace door brick for a tapping nozzle. Background technique [0002] During the smelting and production of domestic AOD furnaces, the traditional refractory materials at the tapping part (tap nozzle) are severely lost after being washed intermittently by molten steel, which affects the smelting work. In order to ensure production, a large number of continuous repairs are often carried out, and even the furnace is shut down for overhaul . At present, in order to improve the service life of the tapping nozzle of AOD furnace, various high-grade refractory castables are mostly used in three forms: ramming, pouring and integral prefabricated blocks. The above-mentioned problems are solved by combining the two processes of machine-pressed refractory products and prefabricated molding. Contents of the invention [0003] The purpose of the present invention is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D1/04
Inventor 岳文鹏
Owner 德清县钢友耐火材料有限公司
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