Blast furnace main iron runner

Abstract

The invention discloses a main iron trough of a blast furnace, which comprises a first body, a first molten iron tank, a second main body, a second molten iron tank, a first stopper, a second stopper, a mounting groove, rollers, ribs, and a rolling groove , a rolling ball, a support rod, an adjustment rod, a base, a bearing, a slider, a chute, and an adjustment bolt, the upper part of the first main body is provided with a first molten iron tank along the length direction, and the upper part of the second main body is arranged along the length direction There is a second molten iron tank for accommodating the first main body, the right end of the first main body slides in the second molten iron tank, and an arc-shaped first stopper is fixed on the outside of the right end of the first main body , the inner side of the left end of the second iron launder is fixedly provided with an arc-shaped second stopper matched with the first stopper, compared with the prior art, the angle and length of the main iron trough can be adjusted conveniently, and the lifting It improves the fire resistance and heat insulation performance of the main iron trough, prolongs the service life of the main iron trough, and brings great convenience for metal smelting.

Description

【Technical field】 [0001] The invention relates to the technical field of metal smelting equipment, in particular to a blast furnace main iron trough. 【Background technique】 [0002] The blast furnace is the main equipment for smelting pig iron, iron for castings and iron for steelmaking. After the reduction reaction in the blast furnace, the iron ore is reduced to metallic iron. At this time, the state of the iron is a molten iron and slag. Metal molten iron is the main product of the blast furnace, and slag is a by-product of the iron smelting process. Slag is made up of impurities in the ironmaking raw materials and fluxes added to aid in the smelting process. [0003] The blast furnace tapping trough is a channel to guide the high-temperature molten iron and slag and fully separate them. The life of the refractories used in it directly affects the normal production of the blast furnace. The use conditions of the main tapping channel are becoming increasingly harsh. The...

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Problems solved by technology

[0003] The blast furnace tapping trough is a channel to guide the high-temperature molten iron and slag and fully separate them. The life of the refractories used in it directly affects the normal production of the blast furnace. The use conditions of the main tapping channel are becoming increasingly harsh. The angle and length of the existing blast furnace tapping channel cannot be adjusted, resulting in an uncontrollable flow rate of molten iron in the iron channel. The high-speed erosion of molten iron has caused huge damage to the iron channel. It brings great inconvenience to the use of the iron main ditch, which seriously restricts the production efficiency of the blast furnace

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