Hey guys!I am your little blogger in the manufacturing industry, and today I will bring you a sharing about the ironmaking process and the history of the rolling mill!Did you know that the ironmaking process is actually the process of reducing iron from the ore, and the rolling mill is the equipment that realizes the metal rolling? These two fields have a long history of development, so let's take a look at them together!
There are many methods of ironmaking, the most widely used of which is the blast furnace method. The smelting principle of blast furnace ironmaking is very interesting, and it mainly uses three raw materials: iron ore, coke and flux. In order to ensure the continuous production of the blast furnace, sufficient raw materials are required**. In a blast furnace, iron ore, coke and flux are continuously loaded from the top of the furnace and then blown into the furnace by hot air. At high temperatures, the carbon in the coke and the ejected material and the carbon monoxide produced by the combustion of the carbon snatch the oxygen out of the iron ore to obtain pig iron. At the same time, the limestone and other fluxes in the furnace will combine with the gangue in the iron ore, the coke and the ash in the injection to form slag. In this way, through the reduction reaction, we can smelt raw iron!The scale of blast furnace ironmaking is huge, it can not only produce a large amount of pig iron, but also produce by-products such as water slag, slag cotton and blast furnace gas.
When it comes to rolling mills, it is the equipment that realizes the metal rolling process. The development history of the rolling mill is very rich. It is said that there were rolling mills in Europe as early as the 14th century, and the earliest recorded sketch of a rolling mill was designed by the Italian Leonardo da Vinci in 1480. Subsequently, rolling mills appeared in France, Spain, Belgium and the United Kingdom. In the middle of the 19th century, the first reversible sheet metal mill was put into operation in Britain, and the iron plate for ships was successfully rolled. After that, the universal rolling mill was invented in Germany, and the three-high profile rolling mill was used in the United States, and the lifting table driven by the steam engine was introduced to achieve mechanization. Of course, China also has an important place in the history of the development of rolling mills. As early as 1871, the iron-drawing plant of the Fuzhou Shipbuilding Bureau began to use rolling mills, and later the Hanyang Iron Works of the Hanyeping Company was also equipped with various types of rolling mills. With the continuous development of the metallurgical industry, there are more and more types of rolling mills.
Seeing this, do you have a deeper understanding of the ironmaking process and the history of the rolling mill?Both of these fields are very important parts of manufacturing. If you are interested in manufacturing, you may wish to learn more about this knowledge, I believe it will be helpful to you!
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