Nickel steel bean production method

Abstract

The invention discloses a nickel steel bean production method, and belongs to the technical field of steelmaking. Chemical components of the nickel steel bean comprise: 20% of Ni, 0.15-0.3% of Si, 0.1% of C, 0.03% of S, 0.03% of P, and the balance of Fe. The nickel steel bean has an irregular bean shape. Production steps comprise: treating ore, preparing a reduction agent, carrying out calcination in a rotation kiln, smelting in a submerged arc furnace, carrying out refinement on the crudely-prepared ferronickel, forming, adopting laterite-nickel ore as a raw material, and adopting a nickel steel bean forming device and a cooling water tank to rapid form, wherein the nickel steel bean forming device can be statically fixed, and further can horizontally rotate, and a water temperature of the cooling water tank is controlled to a certain temperature range. According to the present invention, the components of the nickel steel bean can be accurately controlled, such that the Ni content is about 20%, and the Si content and the S content are low; the side surface outlet size of the nickel steel bean forming device can be adjusted so as to adjust the size of the nickel steel bean; the nickel steel bean has characteristics of small size and light weight; and the temperature of the cooling water tank is controlled so as to control the shape of the nickel steel bean shape.

Description

technical field [0001] The invention relates to a production method of steel-making metal, in particular to a production method of nickel steel beans of the non-ferrous metal nickel. Background technique [0002] With the rapid growth of the world economy, the demand for nickel is also increasing, but the traditional smelters using nickel sulfide ore as raw material are limited by the world's nickel sulfide ore resources, and their production capacity will be limited; The proportion is relatively large, so the full and rational use of laterite resources has become the development direction of the nickel industry. [0003] At present, the nickel content of ferronickel in my country is mostly 4% to 8%, which can only be used as an ingredient for smelting stainless steel, but not in the later stage of smelting stainless steel. When the chemical composition of molten steel needs to be adjusted, a certain amount of refined pure is still required. nickel. [0004] At present, nic...

AI Technical Summary

Problems solved by technology

Since this nickel-containing pig iron block has not been refined by molten metal, it contains a large amount of harmful substances and cannot be directly used in the alloying process in steel production.

This kind of nickel-containing pig iron is generally larger in size and heavier in weight, generally about 10 kilograms per piece, and it is not very convenient to use.

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