A slag ladle raw material processing method suitable for copper smelting working conditions

A technology of working conditions and processing methods, applied in the field of industrial smelting waste slag storage devices, can solve the problems of low wear life, slag bag deformation, not long, etc., and achieve the effect of improving the ability of heat deformation resistance

Active Publication Date: 2021-11-26
武汉恒威宸装备制造有限公司
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Problems solved by technology

[0008] The invention provides a slag ladle raw material processing method suitable for copper smelting working conditions to solve the technical problem that the existing slag ladle is easily deformed and wears low under the influence of high temperature, resulting in short service life

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  • A slag ladle raw material processing method suitable for copper smelting working conditions
  • A slag ladle raw material processing method suitable for copper smelting working conditions

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] see figure 1 As shown, the present invention provides according to one aspect of the present invention, provides a kind of slag ladle raw material processing method suitable for copper smelting working conditions, comprises the following steps:

[0030] Step S1, put steel scrap into the electric furnace in three batches, electrify and smelt for 900 minutes until the oxidation period, and put lime blocks in batches at intervals, wherein 500-800 kg of lime blocks are added each time, and the interval between each batch is greater than 8 minutes. By using Lime block and melted molten steel are fully mixed, dicalcium silicate in steel slag absorbs calcium oxide to form...

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Abstract

A slag ladle raw material processing method suitable for copper smelting working conditions of the present invention controls the processing of slag ladle raw materials to improve the flexibility of slag ladle raw materials, thereby effectively relieving the slag ladle from being subjected to high temperature for a long time. Next, the problem of cracks that are prone to occur. A slag ladle raw material processing method suitable for copper smelting working conditions of the present invention can effectively reduce the content of harmful elements and residual elements and improve the purity of molten steel by adopting electric furnace steelmaking and LF furnace refining, wherein P, S content < 0.020%, lower than the national standard ≤ 0.040%. It can effectively reduce the crack tendency of the slag bag under high temperature conditions. The molten steel undergoes metamorphic treatment (rare earth re), which can refine the crystal grains and improve the comprehensive physical properties of the material. Single ladle casting, on-site temperature measurement before pouring, the pouring temperature can be controlled within the range of ±3°C required by the process, and the crystal grains of the slag ladle The particles are relatively uniform and fine, which can effectively improve its physical properties.

Description

technical field [0001] The invention relates to a storage device for industrial smelting waste slag, and more particularly relates to a slag ladle raw material processing method suitable for copper smelting working conditions. Background technique [0002] With the sharp increase in the demand for copper for industrial production, the supply of copper resources in my country is becoming increasingly tight, and the copper metallurgy industry is paying more and more attention to the dilution treatment of copper smelting slag. In order to further reduce the copper grade of waste slag, in the past 10 years, the number of domestic enterprises using the grinding float method to realize the slag separation of copper smelting furnaces has been increasing year by year, the scale of slag separation plants has continued to expand, and more and more slag bags have been used. [0003] During the use of the slag bag, when the slag is put into the bag, it is heated to above 700°C instantly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/52C21C7/06C22C33/04C22B15/00B22D41/00
CPCB22D41/00C21C5/52C21C7/0006C21C7/06C22B15/0026C22C33/04Y02P10/20
Inventor 施毅红陈卓易建斌郭飞龚成龙
Owner 武汉恒威宸装备制造有限公司
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