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Steel-making equipment for steel scrap steelmaking and smelting method

A smelting method and steel scrap technology, which is applied in the field of smelting steel with scrap steel, can solve the problems of high consumption of steel materials, large impact on the power grid, and large amount of smoke and dust, and achieve the effect of small impact on the power grid, taking into account production efficiency, and increasing the temperature of scrap steel

Active Publication Date: 2018-10-09
MCC CAPITAL ENGINEERING & RESEARCH
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Problems solved by technology

[0003] In order to solve the problem of low thermal efficiency of traditional steel scrap steelmaking process
It solves the problems of low thermal efficiency, high consumption of steel materials, large amount of smoke and dust, and large impact on the power grid in the traditional steel scrap steelmaking process and equipment

Method used

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  • Steel-making equipment for steel scrap steelmaking and smelting method
  • Steel-making equipment for steel scrap steelmaking and smelting method
  • Steel-making equipment for steel scrap steelmaking and smelting method

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0030] A steelmaking equipment for making steel with scrap steel, comprising a scrap steel preheating chamber 6, a non-contact melting device 3 and an electric arc furnace 1 arranged sequentially from top to bottom, and the non-contact melting device 3 is a cylindrical structure with open upper and lower ends , the upper end of the non-contact melting device 3 is the inlet end, the lower end of the non-contact melting device 3 is the outlet end, the non-contact melting device 3 can heat the charge in the non-contact melting device 3 in a non-contact manner; The top wall 23, the side wall 24 and the bottom wall 25 are arranged downwards in sequence. The electric arc furnace 1 contains a closed f...

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Abstract

The invention discloses steel-making equipment for steel scrap steelmaking and a smelting method. The steel-making equipment for the steel scrap steelmaking comprises a non-contact melting device (3),an electric arc furnace (1) and a steel scrap preheating chamber (6), wherein the non-contact melting device (3) can carry out non-contact heating on a furnace burden in the non-contact melting device (3); the lower end of the non-contact melting device (3) is correspondingly connected with the feeding port of the electric arc furnace (1); and an electromagnet (7) capable of attracting the furnace burden is arranged in the steel scrap preheating chamber (6). The steel-making equipment for the steel scrap steelmaking and the smelting method are in a fully-closed state, steel remaining and slagremaining operation are adopted, through energy supplying mode of combining the non-contact melting, electric arc heating, oxygen blowing and carbon spraying, oxygen and fuel gas combustion co-melting, the problems that a traditional steel scrap steelmaking technology and device are low in heat efficiency, a steel material consumption is high, the smoke amount is large, and the impact on a powergrid is large are solved.

Description

technical field [0001] The invention relates to the field of smelting, in particular to a steelmaking equipment for making steel with scrap steel, and a smelting method for making steel with scrap steel. Background technique [0002] At present, the technology and equipment for making steel with scrap steel mainly include medium frequency induction furnace and electric arc furnace. Among them, the intermediate frequency induction furnace is a kind of non-contact melting. Since it cannot be used for large-scale steelmaking because it cannot adjust the composition of molten steel by blowing oxygen and slagging, it is only allowed to be used in small-batch and multi-variety special metallurgical enterprises whose raw materials come from internal circulation. On the other hand, traditional electric arc furnaces mainly rely on high-temperature electric arcs to melt scrap steel and heat molten steel. The arc damages the scrap steel greatly, and the melting noise is loud. It requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/52
CPCC21C5/5252Y02P10/20
Inventor 潘宏涛常旭李强耿明山王佳李传民李佳辉陈卫强李博安邦
Owner MCC CAPITAL ENGINEERING & RESEARCH
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