What is the basic oxygen furnace?
Basic oxygen furnace (BOF) is a machine used to clean the iron of the pig by oxidizing dirt into a slag and converting the rest into molten oxygen injection. It is a primary method used for steel production around the world. The steel produced is chemically tested and can be further modified by adding alloys. This process is called a basic oxygen furnace due to alkalite refractory and adding alkaline materials during production.
The heat or dose begins with the structure of the furnace itself, ie an elongated container. The container is lined with alkaline refractory materials such as magnesium and burnt lime. Refractory is essential to withstand extreme temperatures and a high level of oxidation that occurs in the basic oxygen oxygen. The computer program uses chemical iron analysis to determine optimal proportions of iron, steel pieces and flows and programming the oxygen blowing time. The height of the oxygen flow in the container can be blowing duringEdited. The process is controlled and monitored by a computer.
carbon and silicon in the mixture oxidize and create a huge volume of heat that melts scrap. This chemical reaction rapidly increases the temperature in the basic oxygen oxygen to about 3,000 ° Fahrenheit (1,649 ° Cels). Oxidized silicon becomes silicate and combines with flows to form slag. The sulfur and phosphorus content is absorbed by slag. Carbon monoxide and carbon dioxide created process is exhausted via the pollution control device.
After oxygen blowing, the furnace contains a layer of molten steel and slag. The vessel is tilted to allow sampling and testing the cleaning material. The preheated container called the ladle moves to the site under the basic oxygen oxygen. The molten steel is tapped or poured into the ladle. The detectors work to prevent mixing of any steel slag. Steel can be changed with alloysiron, silicon or manganese for specific use or be sent for casting without further modification.
After all steel is tapped, the slag is poured into a separate container. The slag is cooled and left to stabilize for months. After this time, the slag can be crushed for further use, often as an aggregate for construction projects.