Three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and system

Abstract

The invention discloses a three-phase multiple extrusion graphite electrode distribution ferroalloy furnace power transmission smelting method and a system. Each phase of a transformer secondary-side three-phase wiring terminal is divided into at least two electrode wiring terminals connected in parallel; each electrode wiring terminal is connected with a high-quality extrusion graphite electrode; all high-quality extrusion graphite electrodes penetrate into a furnace from the top part of a furnace cover of a ferroalloy furnace; each two adjacent high-quality extrusion graphite electrodes has different phases; three high-quality extrusion graphite electrodes with different phases are uniformly distributed in an equilateral triangle way; and three-phase multiple high-quality extrusion graphite electrodes are uniformly and reasonably distributed in the furnace to transmit power for working, so that a high-temperature melting area in the furnace and an area for producing ferroalloy liquid through reduction reaction are enlarged, coverage areas are mutually crossed, overlapped and connected, the ferroalloy liquid can be discharged easily, the electric energy and the electrode consumption are greatly saved, and the safety accidents caused by the product quality problem of conductive electrodes are completely eradicated.

Description

[0001] Technical field: [0002] The invention relates to a large-capacity ferroalloy submerged arc furnace smelting method using graphite electrodes, in particular to a three-phase multi-graphite electrode layout large-capacity ferroalloy furnace power transmission smelting method and system. [0003] Background technique: [0004] At present, most of the ferroalloy smelting industry still uses self-baking electrodes for power supply, and self-baking electrodes and electrode pastes are primary products of carbon. In accordance with the national policy on energy saving and emission reduction, this production process should be a controlled development mode. In the production of self-baking electrodes, there will be accidents such as soft breakage, oil flow, segregation, hard breakage, cracks, falling blocks, over-burning, and hanging materials. It is the soft break and oil flow that can cause fire and explosion, directly threatening the safety of operators and equipment. In the...

AI Technical Summary

Problems solved by technology

In the past, high-quality and large-size graphite electrodes of φ600~φ800mm were expensive due to the complex process technology. Everyone only wanted to promote the use of low-end large-diameter carbon electrodes φ1020~φ1400mm for high-efficiency and large-capacity 20000KVA~40000KVA ferroalloy furnaces.

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