Electric Arc Furnace (EAF) Components
Scrap buckets are essential components in EAF (Electric Arc Furnace) charge systems, delivering raw material to the furnace. The bucket body and wings ensure safe and efficient transfer of scrap material into the hot furnace. Capacity, wing configuration, and material are determined per customer project. DNL Mühendislik manufactures scrap buckets tailored to each furnace size and charging system.
The scrap's bulk density and the number of charges per heat. Toulouevski and Zinurov state that furnaces suited to single-basket charging are designed to take the full charge of scrap at a bulk density of about 0.7 t/m³. DNL Mühendislik manufactures the bucket to the furnace's capacity and the plant's charging arrangement.
Each charge requires swinging the roof aside and interrupting the power. According to Toulouevski and Zinurov, using a single basket instead of two on furnaces with a short tap-to-tap time raises hourly production markedly. To make this possible, the furnace's freeboard volume is usually enlarged, mostly by increasing height.
Yes. According to the same source, a taller scrap pile absorbs more of the heat released by the afterburning of carbon monoxide rising from below, and more of the heat from the sidewall burner flames. The scrap is hotter before it melts, and melting speeds up.
Yes, this is a documented practice. Toulouevski and Zinurov report that in bucket preheating with flue gas, the gas enters the unit at about 1000°C and leaves at 200–300°C, and the scrap reaches an average of 300–350°C. In these applications, electrical energy consumption has fallen by 30–40 kWh/t and tap-to-tap time by 7–9%.
