New member seeking help with furnace issues

I recommend that you take a look at the \"Handbook on Design of Non-ferrous Metallurgy Furnaces\", which contains information on various types of furnaces. Your question is a bit strange – what kind of furnace is a blowing furnace?

I wonder what type of metal smelting the original poster is involved in? Your electric furnace for melting metals must be an arc furnace; it’s also known as a submerged arc furnace, and it is a type of furnace that uses the heat generated by arcs to melt metals and other materials. Based on the heating method, there are three types: ① Indirectly heated arc furnace. An arc is generated between the two electrodes; it does not come into contact with the material, and the material is heated by thermal radiation. These types of furnaces are noisy and inefficient, and are gradually being phased out. ②Directly heat the arc furnace. An arc is generated between the electrode and the material, directly heating the material ； The three-phase electric arc furnace for steelmaking is the most commonly used direct-heating arc furnace. ③Submerged arc furnace, also known as a reduction furnace or electric arc furnace. One end of the electrode is buried in the material layer, where an arc is formed; the heat generated by the resistance of the material layer itself is used to heat the material ； It is commonly used in the smelting of ferroalloys and industrial silicon, as well as in the melting of nickel matte and copper matte, and for the production of calcium carbide. A metallurgical furnace whose furnace body can rotate, used for smelting steel or slag. The converter body is made of steel plates and is cylindrical in shape; it is lined with refractory materials. During the smelting process, it is heated by the heat generated through chemical reactions, so no external heating source is required. It is the most important equipment for steel production, and can also be used for the smelting of copper and nickel. Converters are classified according to the properties of the refractory materials in their linings into basic converters (using magnesia or dolomite as linings) and acidic converters (using siliceous materials as linings) ； Based on the location where the gas is introduced into the furnace, converters are classified as bottom-blown, top-blown, and side-blown converters ； Based on the gas used in melting, they are divided into air converters and oxygen converters. Converter steelmaking is a method of steel production that primarily uses liquid pig iron as raw material. Its main feature is that it uses the physical heat of the liquid pig iron inside the converter, as well as the heat generated by the chemical reactions between the various components in the pig iron – such as carbon, manganese, silicon, phosphorus, etc. – and the oxygen supplied to the furnace, in order to bring the metal to the desired composition and temperature for casting. The charge mainly consists of molten iron and slag-forming materials (such as lime, quartz, fluorite, etc.). To adjust the temperature, scrap steel as well as small amounts of cold pig iron and ore can be added. During the converter steelmaking process, the carbon in the molten iron reacts with the oxygen introduced at high temperatures to produce a mixture of carbon monoxide and a small amount of carbon dioxide, namely converter gas. The amount of converter gas produced varies throughout a single smelting process, and its composition also changes. Typically, the gas recovered from multiple smelting cycles is cooled and dust-freeed, then fed into storage tanks where it is mixed before being delivered to users. The blowing furnace you are referring to must be a smelting furnace; it can be operated using a converter or an intermediate-frequency furnace.

Thank you all for your answers! I am extremely grateful! PS: In reply to the person in post 2, I don’t have enough points to download it, which is why I’m asking for help everywhere! Hehe!

After all, they are all metallurgical furnaces, and their overall purpose is to carry out the necessary metallurgical processes. I think you should start by studying the principles of metallurgy, followed by textbooks on metallurgy specialties, so that you can fully understand it.

The reply from the 3rd floor was quite comprehensive; I’ll add a few more details. As I understand it, when you talk about pyrometallurgical processing in the steel industry, electric arc furnaces and converters are both used for steel production. The molten iron produced by blast furnaces contains excess carbon and other unwanted elements, which need to be removed through oxidation in order to obtain qualified steel products. As for what you mentioned regarding “blowing,” my understanding is that you’re referring to the three different types of converters: top-blown, bottom-blown, and top-bottom combined blowing. Of course, it’s also possible that it refers to the situation mentioned by the 3rd floor. But if we’re talking about the steel industry, then there really isn’t anything called “blowing”; rather, it’s different operating methods for converters.