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Full scrap steel electric furnace steelmaking continuous feeding system and method

An electric furnace steelmaking and feeding system technology, which is applied in the field of steelmaking, can solve the problems of rough feeding volume, low feeding speed control accuracy, and low overall efficiency, and achieve the effects of reducing manpower use, improving feeding efficiency, and uniform feeding

Pending Publication Date: 2022-01-04
沁阳市宏达钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The control of the feeding amount is relatively rough and completely depends on the habit of the operator, the feeding speed control accuracy is low, and the overall efficiency is low

Method used

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  • Full scrap steel electric furnace steelmaking continuous feeding system and method
  • Full scrap steel electric furnace steelmaking continuous feeding system and method
  • Full scrap steel electric furnace steelmaking continuous feeding system and method

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Embodiment 1

[0017] Such as figure 1 , a continuous feeding system for all-scrap electric furnace steelmaking, including a plurality of storage bins and a conveying mechanism, the storage bins are used to store scrap steel, the conveying mechanism is used to transport scrap steel to the electric furnace for continuous feeding, and the conveying mechanism includes a horizontal conveyor belt 1 and Feeding conveyor belt 2, a plurality of storage bins are arranged along the conveying direction of the horizontal conveyor belt, in this embodiment, there are 5, the feeding conveyor belt 2 is connected between the storage bin and the horizontal conveyor belt, and the horizontal conveyor belt 1 is connected to the electric furnace , at least one storage bin along the near end of the electric furnace is a light and thin bin 3. In this embodiment, there are two thin and light bins, and the remaining storage bins are heavy bins 4; the feeding conveyor belt and the horizontal conveyor belt can use chain...

Embodiment 3

[0024] The entrainment of light and thin materials is relatively large. Reducing the amount of light and thin materials is conducive to improving the quality of steelmaking. Therefore, it is hoped to increase the amount of heavy materials. Specifically, in this plan, a larger secondary reference value is set. Since the quality, shape, and size of scrap steel vary greatly with the batch of incoming materials, it also has a great influence on the fluctuation range of feeding. The greater the difference in the shape and size of scrap steel, the greater the fluctuation caused, and when the fluctuation range is large. If the secondary reference value is set too large, the fluctuation range may exceed the total feeding speed, and subsequent light and thin material compensation will fail. To solve this problem, in this embodiment, when formulating the secondary reference value, first calculate the standard deviation σ of the primary weighing measurement value and the secondary weighin...

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Abstract

The invention relates to a full scrap steel electric furnace steelmaking continuous feeding system and method. The feeding system comprises multiple storage bins and a conveying mechanism, the conveying mechanism comprises a horizontal conveying belt and a feeding conveying belt, the storage bins are arranged in the conveying direction of the horizontal conveying belt, and the feeding conveying belt is connected between the storage bins and the horizontal conveying belt; the horizontal conveying belt is connected to an electric furnace, at least one storage bin is a light and thin storage bin along the near end of the electric furnace, and the other storage bins are heavy storage bins; and the horizontal conveying belt is provided with a first-level weighing part along the near end of the electric furnace and provided with a second-level weighing part along the far end of the electric furnace, the first-level weighing part is arranged at the downstream position of the light and thin storage bin, and the second-level weighing part is arranged at the upstream position of the light and thin storage bin. Automatic feeding can be achieved, the feeding efficiency is improved, the feeding speed can be accurately controlled, and constant-speed feeding is achieved.

Description

technical field [0001] The invention relates to an all-scrap electric furnace steelmaking continuous feeding system and method, belonging to the technical field of steelmaking. Background technique [0002] The electric furnace steelmaking process using the continuous feeding system can realize continuous feeding, continuous preheating, continuous melting and continuous smelting, and has the advantages of short smelting cycle, low smelting energy consumption, and low smelting noise. Among them, 40% of the molten steel is kept in the electric furnace after it is released from the furnace, and then scrap steel is added to melt the scrap steel with molten steel. The electrode power and feeding speed are pre-determined according to the process. Generally, the feeding speed is set at about 2t / min. Add and subtract at the end. The fluctuation of continuous feeding speed will have a great impact on the normal operation of the electric furnace and the quality of steelmaking. If the...

Claims

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Application Information

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IPC IPC(8): B65G15/30B65G47/18B65G65/44B65G43/08C21C5/52
CPCB65G15/30B65G47/18B65G65/44B65G43/08C21C5/527Y02P10/20Y02P70/10
Inventor 王昭阳刘刚王沛孙智波黄兴龙陈纪东崔斌斌马磊孙茂华朱丽国赵强罗义利
Owner 沁阳市宏达钢铁有限公司
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