Furnace cover of titanium and iron separation electric arc furnace

Abstract

The invention relates to a furnace cover of a titanium and iron separation electric arc furnace. The furnace cover comprises a round cover body, wherein three round holes allowing electrodes to insert in are uniformly formed in the middle of the round cover body at intervals, a cavity flow passage is arranged in the round cover body, a water inlet hole and a water outlet hole are formed in the edge part of the top surface of the round cover body, and the water inlet hole and the water outlet hole are respectively communicated with the cavity flow passage arranged in the round cover body. The furnace cover has the advantages that the production cost is reduced, and in addition, as no asphalt is dissolved in the furnace, the work environment is greatly improved, and the problem of pollution on the ambient environment caused by the asphalt smoke is solved.

Description

technical field [0001] The invention relates to an electric arc furnace for smelting ferro-titanium separation, in particular to a cover of an electric arc furnace for ferro-titanium separation. Background technique [0002] Gaotai slag is the raw material for the production of Taibai by sulfuric acid method and chlorination method, and it is also the raw material for the production of series products such as titanium tetrachloride and titanium sponge. Ilmenite is the raw material for producing high-titanium slag. my country is a country with a large titanium resource, accounting for about 45% of the world's reserves. At present, the main method for producing high-titanium slag at home and abroad is reduction smelting. The method is to use an electric arc furnace to heat the charge to a high temperature of about 2000 degrees, and maintain a certain long reduction time at the high temperature to separate titanium and iron. It uses anthracite or petroleum as the reducing agen...

AI Technical Summary

Problems solved by technology

In the prior art, the upper port of the electric arc furnace is open when the electric arc furnace is used to smelt and reduce ferro-titanium. Since the electric arc furnace does not have a special electric arc furnace cover, when the electric arc furnace is used to smelt and separate ilmenite, in order to keep warm in the furnace, it is often A certain amount of asphalt is added to the ilmenite powder and the reducing agent charge containing fixed carbon. When the electric arc furnace is heated, the asphalt in the charge, especially the asphalt in the lower charge, dissolves, volatilizes, and burns at high temperature, producing a large amount of asphalt smoke. , the fluorescent substances and carcinogens in the asphalt fume are also ejected from the electric arc furnace mouth along with the asphalt soot, which not only brings harm to human health but also seriously pollutes the surrounding environment

In addition, since the electric arc furnace does not have a furnace cover, the heat preservation performance in the furnace is not good, and it is not easy to make the temperature in the furnace reach the separation temperature and reduction time of ferro-titanium, which greatly prolongs the smelting time, which not only wastes energy, but also reduces product quality.

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