Electric furnace system

A technology of electric furnace and furnace cover, applied in the field of electric furnace, can solve the problems of continuous preheating of unfavorable charge, slow tapping time and high production cost, and achieve the effects of reducing non-energization time, improving preheating effect and stabilizing arc.

Active Publication Date: 2021-02-19
圣力(清远)钢制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The electric furnace and the scrap steel smelting process provided by the above patent documents make the tapping time slow, and the power consumption is large, and the production cost is high
Moreover, the setting of the electric furnace structure in the prior art is not conducive to the continuous preheating of the charge. The continuous preheating electric furnace of the charge is very different from the ordinary electric furnace. It can effectively realize continuous preheating, continuous feeding and continuous melting. Therefore, the preparation An electric furnace that is conducive to continuous preheating of the charge is very important

Method used

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Examples

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Embodiment 1

[0072] A steelmaking process, comprising the steps of:

[0073] S1: The scrap steel raw materials are hoisted into the vibrating feeder by the crane;

[0074] S2: The vibrating feeder transports the steel scrap raw material from the feeding bin to the electric furnace body;

[0075] S3: Preheat the furnace body through the furnace door oxygen lance and the furnace arm oxygen lance, and use the high-temperature fan to preheat the electric furnace body with the waste heat exhausted from the electric furnace body;

[0076] S4: The preheated steel scrap raw material vibrates and enters the circuit furnace body for melting and smelting;

[0077] S5: During the smelting process, lime is first added from the alloy feed port, and then alloy conditioning ingredients are added;

[0078] S6, when the temperature of the molten steel in the furnace body of the electric furnace is 15-70°C, the shaking furnace is tilted to tap steel.

[0079] Wherein in the step S5, lime is first added to...

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Abstract

The invention relates to an electric furnace system. The electric furnace system comprises a water cooling section, a high-temperature draught fan, a furnace body and a transformer, the high-temperature draught fan comprises a cold air regulating valve and a draught fan inlet, an opening is formed in the water cooling section, the opening of the water cooling section is connected with the draughtfan inlet, a cold air adjusting valve is installed between the water cooling section and the draught fan inlet and used for controlling the temperature of hot air, and the transformer controls the temperature in the furnace body through current. By means of the technology of the electric furnace system, the preheating effect of the scrap steel is obviously and greatly improved, the field measurement temperature is within 400 DEG C-500 DEG C, the tapping time of one furnace is 3 minutes-6 minutes earlier than before, the tapping time before is 36 minutes-40 minutes, the tapping time at presentis 30 minutes-34 minutes, the power consumption per ton of steel is reduced by 30 kilowatt-hour-50 kilowatt-hour, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of electric furnaces, in particular to an electric furnace system. Background technique [0002] At present, the high-temperature gas discharged from the electric furnace is not fully utilized, resulting in waste of high-temperature gas. The temperature of scrap steel in the preheating equipment can only reach within 200-250 degrees, and the tapping time is still slow, and the electricity consumption per ton of steel Large and expensive to produce. [0003] Patent document CN108676963A discloses an electric furnace smelting method and smelting system for all light and thin scrap steel. Among them, the electric furnace smelting method of all light and light material scrap includes the following steps: (1) packing the light and thin material scrap into scrap steel briquettes; (2) continuously sending the scrap steel briquettes into the ultra-high power electric arc furnace; Electric operation, oxygen blowing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D19/00F27D3/00C21C5/52
CPCC21C5/5217F27D3/0025F27D19/00F27D2019/0003F27D2019/0028Y02P10/20
Inventor 夏德祥
Owner 圣力(清远)钢制品有限公司
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