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Calcium Carbide & Ferroalloy Submerged Electric Arc Furnace
Full Introduction
Calcium Carbide Electric Arc Furnace: The industry standard name is Submerged Arc Furnace (SAF), commonly known as carbide electric arc furnace. This furnace can accommodate four major smelting products: carbide, ferrosilicon, silicomanganese, and ferrochromium. It is a core electrothermal reduction equipment for both metallurgy and chemical industry.
二,Overall introduction of the equipment
1. Working Principle
Electrothermal carbothermic reduction technology: three self-baking electrodes insert into furnace burden to form submerged electric arc. Heat comes from two sources:
High-temperature electric arc (1600–2500℃) between electrode tip and raw material
Resistance heat generated when large current passes through solid furnace charge
Coke/anthracite acts as reducing agent, reducing metal oxides in ore into molten alloy or calcium carbide. Continuous feeding + intermittent tapping for 24h non-stop production.
High-voltage transformer, short net conductive system, reactive power compensation & harmonic filtering cabinet, PLC electrical control room. Supports low/high/ultra-high power models (3300kVA ~ 81000kVA).
Electrode Lifting & Hydraulic System
Hydraulic cylinder, electrode holding clamps, pressure ring, electrode paste feeding device; automatic lifting adjustment to stabilize arc resistance.
Raw Material Batching & Feeding System
Raw material silos, automatic weighing batcher, belt conveyor, sealed top charging chute, dust-proof feeding mechanism.
Auxiliary Circulation & Environmental System
Full water cooling circulation unit, flue gas waste heat recovery, bag dust removal system, CO gas collection pipeline, desulfurization & denitrification unit.
Multi-product Compatibility:One furnace switches between calcium carbide, ferrosilicon, silicomanganese, ferrochromium by adjusting raw material formula, flexible production line layout.
High Thermal Efficiency:Electrodes buried in burden reduce heat radiation loss, power consumption 8–15% lower than open arc furnaces.
Low Operation Cost:Self-baking electrodes save graphite consumption; fully closed furnace recycles CO flue gas for power generation or heating.
Stable Alloy Quality:Precise electric power control ensures stable chemical composition, high metal recovery rate ≥92%.
Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. is a high-tech enterprise specialized in the research, design, and manufacturing of various industrial furnaces, including AC and DC steelmaking electric arc furnaces, ladle refining furnaces, ferroalloy ore thermal furnaces, ferroall... Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. is a high-tech enterprise specialized in the research, design, and manufacturing of various industrial furnaces, including AC and DC steelmaking electric arc furnaces, ladle refining furnaces, ferroalloy ore thermal furnaces, ferroall...
