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How To Optimize The Production Efficiency Of Graphite Electrode

Pulished on Mar. 26, 2019

Even if each graphite electrode from Graphite Electrode Manufacturer is the most advanced equipment, with the best control system, or according to the production conditions and actual conditions, so people have been committed to achieve the best production efficiency of graphite electrode. Graphite electrode steelmaking has developed from a low-cost smelting method which can only produce a small amount of commercial grade steel to a continuously developing smelting technology which can produce steel of various grades and quality.

Just as every steel mill is different -- depending on specific production conditions, such as transport and power, each graphite electrode is different. Operators aim to meet specific process standards and therefore adopt their own production methods to suit local or market conditions. This does not mean that graphite electrode steelmaking has no future. On the contrary, graphite electrode designers have developed a variety of graphite electrodes to perfect graphite electrode steelmaking, many of which have been installed or operated.

                                        Graphite Electrode Manufacturer

Feeding control

The cost of charge (scrap steel, DRI, molten iron) may be the most variable factor for the cost of Graphite Electrode steel-making. Therefore, many graphite electrode producers, in addition to obtaining certain product quality, also alternately change the mode of charging in order to seek the best production cost. Danieli developed a feeding model for stainless steel smelting with graphite electrodes, which estimates that raw materials account for "more than 80 percent of production costs." Danieli's lowest cost charge (LCC) model aims to optimize graphite electrode charging by taking into account the production method, influencing factors and limiting conditions, including raw material, time, scrap inventory, to be used in each furnace. According to the total amount of scrap steel, ferroalloy, residual molten steel in the furnace and molten steel in the furnace (if any), the model takes each furnace charge as the calculation factor, and provides different calculation models and functions.

EAF process and BOF technology

As soon as the first furnace is filled with molten iron, top oxygen is immediately blown to decarbonize the molten steel. After the decarburization stage is completed, the oxygen gun is quickly raised and the electrode is immediately put in place. The DRI cold material was added continuously while the power was on. The second stage is carried out in the first furnace while the second furnace is in the refining stage, so the position of the electrode is adjusted for the use of the second furnace, and the steel can be produced after the first furnace completes the refining.

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