Single cast house system of double-taphole blast furnace

Abstract

The invention relates to a single cast house system of a double-taphole blast furnace. The single cast house system comprises the blast furnace, slag skimmers and a swinging chute, wherein two auxiliary cast houses are arranged on the blast surface, the two auxiliary cast houses are respectively arranged on the two sides of the blast furnace and distributed in a rectilinear manner, the auxiliary cast houses, the blast furnace and the original cast house are arranged in parallel, and the blast furnace is respectively provided with the tapholes along the directions of the two auxiliary cast houses; and the slag skimmers are arranged in the auxiliary cast houses, the slag skimmers are respectively connected to an iron trough and a slag trough, the tapholes are connected with the slag skimmers through the iron trough and then connected to the original cast house through the iron trough, the swinging chute is mounted at an outlet of the iron trough, and molten iron is further released into a molten iron tank through the swinging chute. According to the single cast house system disclosed by the invention, by increasing the auxiliary cast houses, the two tapholes can be arranged by forming an angle of 180 degrees, so that the positive effects of reducing or avoiding non-uniform erosion in the circumferential direction of a furnace hearth, stabilizing the production of the blast furnace, saving energy, reducing consumption, improving the operation quality of the blast furnace and prolonging the service life of the blast furnace can be realized.

Description

technical field [0001] The invention relates to the technical field of ironmaking, in particular to a double-hole blast furnace single-casthouse system. Background technique [0002] The blast furnace used for ironmaking needs to discharge molten iron through the taphole. Larger blast furnaces generally need to be equipped with more than two tapholes. Conventionally, a blast furnace with two tapholes will generally have two casthouses, and the two tapholes will be arranged in the two casthouses respectively. The two iron holes are arranged at 180° to each other. This arrangement is the best, and can ensure uniform erosion in the circumferential direction of the hearth of the blast furnace, which is conducive to production. [0003] Due to the limitation of site, space and transportation conditions, a blast furnace with two tapholes is often set up with a casthouse, and the two tapholes are arranged at an angle of less than or equal to 90° at the same time. For a large bla...

AI Technical Summary

Problems solved by technology

For large-scale blast furnaces, if the side where two tapholes are arranged at the same time, that is, in a casthouse, it will not only easily cause uneven erosion in the circumferential direction of the hearth, but also affect the stability of blast furnace production and energy saving and consumption reduction.

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