| 摘要 |
In its first stage this invention concerns an energy supply process and then goes on to act as a heat insulator on the surface of metal baths for pig iron, steel, and so on. At integrated steelworks, after the blast furnaces have been tapped, liquid pig iron is conveyed in torpedo cars to the steel shop where it will be treated in several ways. Throughout this movement, both pig iron and steel lose a large amount of heat. To avoid this loss, plants resort to two kinds of procedure. One of them consists of using rice straw, which is thrown onto the bath's surface, forming a layer that will go on burning, producing energy and, as a result, maintain the temperature of the liquid metal. The other procedure, increasingly in use, consists of raising the temperature of the run from the blast furnace to make up of energy while liquid metal is in motion. Acknowledging the importance of reducing industrial costs, in addition to finding solutions to recycle spoils from the plants, we have devised a new process which, besides overcoming the inconveniences of processes used currently, is economically feasible and means a contribution towards lessening environmental pollution. |
