Blast furnace steelmaking continuous casting and rolling stainless steel round bar production system and production technology

A technology of steelmaking and continuous casting and production system, which is applied to furnaces, furnace types, heat treatment furnaces, etc., can solve the problems of high cost and high energy consumption, and achieve the effects of simple production process, low energy consumption and compact structure

Active Publication Date: 2016-02-24
FUJIAN QINGTUO NICKEL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the temperature of the steel billet transported to the round steel processing plant has usually dropped to normal temperature, and the steel billet is heated from room tem

Method used

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  • Blast furnace steelmaking continuous casting and rolling stainless steel round bar production system and production technology
  • Blast furnace steelmaking continuous casting and rolling stainless steel round bar production system and production technology

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[0029] Example one

[0030] A blast furnace steelmaking continuous casting and rolling stainless steel round bar production process includes the blast furnace steelmaking continuous casting and rolling stainless steel round bar production system, including the following steps:

[0031] 1) Put anthracite, sintered nickel ore and coke into the blast furnace with a mass ratio of 6% anthracite, 63% sintered nickel ore, and 37% coke. Add oxygen to the blast furnace to melt the additives into liquid nickel iron. The tapping temperature of the blast furnace is 1400℃;

[0032] 2) The molten nickel and iron smelted in step (1) are transported into the AOD furnace through the ladle tank, and lime, ferrosilicon, fluorite, high-carbon ferrochromium, electrolytic manganese and nickel-iron are added to the AOD furnace. The quality ratio is Lime 6%, ferrosilicon 1%, fluorite 1%, high-carbon ferrochromium 20%, electrolytic manganese 1%, nickel-iron 70%, and oxygen, argon and nitrogen are added to m...

Example Embodiment

[0036] Example two

[0037] A blast furnace steelmaking continuous casting and rolling stainless steel round bar production process includes the blast furnace steelmaking continuous casting and rolling stainless steel round bar production system, including the following steps:

[0038] 1) Add anthracite, sintered nickel ore and coke into the blast furnace with a mass ratio of 9% anthracite, 63% sintered nickel ore, and 33% coke. Add oxygen to the blast furnace to melt the additives into liquid nickel hot metal. The blast furnace tapping temperature is controlled at 1440~1460℃;

[0039] 2) The molten nickel and iron smelted in step (1) are transported into the AOD furnace through the ladle tank, and lime, ferrosilicon, fluorite, high-carbon ferrochromium, electrolytic manganese and nickel-iron are added to the AOD furnace. The quality ratio is Lime 8%, ferrosilicon 1.5%, fluorite 1.5%, high-carbon ferrochrome 30%, electrolytic manganese 1%, nickel-iron 60%, and oxygen, argon and nitr...

Example Embodiment

[0043] Example three

[0044] A blast furnace steelmaking continuous casting and rolling stainless steel round bar production process includes the blast furnace steelmaking continuous casting and rolling stainless steel round bar production system, including the following steps:

[0045] 1) Add anthracite, sintered nickel ore and coke into the blast furnace with a mass ratio of 7.5% anthracite, 60% sintered nickel ore, and 33% coke. Add oxygen to the blast furnace to melt the additives into liquid nickel hot metal. The blast furnace tapping temperature is controlled at 1500℃;

[0046] 2) The molten nickel and iron smelted in step (1) are transported into the AOD furnace through the ladle tank, and lime, ferrosilicon, fluorite, high-carbon ferrochromium, electrolytic manganese and nickel-iron are added to the AOD furnace. The quality ratio is Lime 7%, ferrosilicon 1.2%, fluorite 1.3%, high-carbon ferrochromium 25%, electrolytic manganese 6%, nickel-iron 65%, and oxygen, argon and nit...

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Abstract

The invention relates to a blast furnace steelmaking continuous casting and rolling stainless steel round bar production system and a production technology. The blast furnace steelmaking continuous casting and rolling stainless steel round bar production system comprises a blast furnace for smelting molten iron and is characterized in that a steel ladle tank arranged on a conveying mechanism and used for bearing the molten iron is arranged below the side of the blast furnace; the steel ladle tank is lifted and conveyed to the part above an AOD furnace through a crane arranged above the output end of the conveying mechanism; an LF furnace used for refining molten steel smelted through the AOD furnace is arranged beside the AOD furnace; a second steel ladle tank used for conveying the molten steel to a steel billet continuous casting machine through a second conveying mechanism is arranged in the direction of a discharging port of the LF furnace; a steel billet output by the steel billet continuous casting machine is conveyed to a steel billet heating furnace through a third conveying mechanism; and the output end of the steel billet heating furnace is provided with a fourth conveying mechanism used for conveying the heated steel billet to a rolling mill to form a round steel bar. The blast furnace steelmaking continuous casting and rolling stainless steel round bar production system is compact in structure, energy consumption is reduced, and the production technology is simple and convenient.

Description

technical field [0001] The invention relates to a blast furnace steelmaking continuous casting and continuous rolling stainless steel round bar production system and production process. Background technique [0002] In the prior art, the production of stainless steel round steel adopts a short process. First, the steel billet is produced, and then the steel billet is transported to the factory for preparing the round steel. It is also prone to loss during transportation. The steel billets transported to the round steel processing plant need to go through the forging and rolling process, and the steel billets need to be heated to thousands of degrees before forging and rolling. Because the temperature of the steel billet transported to the round steel processing plant has usually dropped to normal temperature, and the steel billet is heated from room temperature to thousands of degrees, which consumes a lot of energy and costs a lot. Therefore, a new stainless steel round st...

Claims

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Application Information

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IPC IPC(8): B22D11/14C21D9/70B21B1/46
Inventor 项炳和
Owner FUJIAN QINGTUO NICKEL IND CO LTD
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