High oven this term is used to designate a facility intended for the production of large quantities of iron (cast iron) in the order of 20 million tonnes per year, the same as this constituted fundamentally by a predominant tubular element of an approximate height of 30 m, which is the oven properly said, are identified also hot air stovesa system of treatment of exhaust gases, the system of loading and unloading. Oven. Consists of a capsule formed by two structures metal conical trunk United by the apex exceeding a height of approximately of 8 m from the ground, which is protected by a refractory lining to protect it from heat in the lower cone identified income of hot air, designated with the generic name of nozzles or nozzles, towards the bottom of thosetwo major openings may demonstrate, the first is to remove the slag named escoriadero, the second this near the bottom and is used for the evacuation of the product generated. As it is evident, the exhaust gases must be properly evacuated for which respirators are arranged on top of the oven, which is also the load of iron, coke and limestone (raw). Stoves these installations are equipped by hot air stoves, which increase the temperature of this element up to approximately 800 C, after its injection into the furnace, the heating process, usually performed through heat exchangers, which obtains its energy through two possible ways: electric resistances (unusual for its high consumption) or with the help of the gases coming out of the oven which heated caloportadoresgenerally thermal oil, who in turn transmit this energy toward the stove, usually air is treated with a prior filtering process, it is usual also, identify control devices for the detection of flammable items within these ranges. Exhaust gases.
Gases that emerge, are quite aggressive with the environment due to its temperature, solids in suspension, and flue gas (H2S, CO, etc.) by which makes imperative his treatment, which is done cooling these element with heat exchangers, recuperating, as already said, the heat to raise the temperature of the air entering through the use of elements that precipitate solids, with partitions or cyclones, and baked are currently being developed also catalysts for the neutralization of the fumes. Charging system. Realized with the help of wagons that ascend to the mouth of the oven with the proper mixture of Coke, iron and limestone, from a vault where premium system discharge occurs, dosing, mixing, and additive of matter. They are identified to this effect two products the slag and the two cast iron are removed by the base of the oven by wagons located way opposed this provision responds to needs of manipulation, slag can undergo a process of secondary recovery (not usual), or use it for other products such as the elaboration of abrasive items especially for sand blasting.