Iron-storing notch of blast furnace

Abstract

The invention is about a blast furnace casting groove. It is made up of the protecting brick, the carbon material working lining, the casting material layer, the permanent brick lining and the insulating layer. The surface of the tapping groove is made up of the protecting brick, the carbon material working lining, the casting material layer, the permanent brick lining and the insulating layer. The groove can be field mounted; the carbon material working lining can improve the corrosion resistant ability.

Description

1. Technical field

[0001] The invention belongs to a blast furnace tapping device, in particular to an iron storage type blast furnace tapping trough. 2. Background technology

[0002] In recent years, due to the continuous improvement of the level of smelting and the application of a large number of technological advancements to the construction and production of blast furnaces, the service life of the first generation of blast furnaces has become longer and longer. However, the tapping channel technology matching the blast furnace has not been greatly improved, which has become a bottleneck restricting the high and smooth production of the blast furnace.

[0003] At present, the large and medium-sized blast furnace iron channels in the industry generally use on-site cast corundum silicon carbide refractory materials to form the working layer. The disadvantage is that the corrosion resistance of slag and iron is average and the maintenance and replacement cycle is long. Me...

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