年产88万吨热轧线材车间设计.doc

年产88万吨热轧线材车间设计 A new plant design of high-speed wire rod with the annual output of 880,000 tons Abstract Since the high-speed wire rod mill and the control of cooling after rolling came out, with the wire production technology itself increasingly improved and control technology progressed, high-speed wire rod mill products greatly improved in the size range, rolling speed, precision of size and so on, and this design is based upon the technical conditions. The design proposed an annual output of 880,000 tons of high-speed wire rod plant, due to higher rolling speed, so it will be a single rolling process. The product specification are Φ6 ~ 16 mm, single-reel weighs about 1.8 tons, the steel is the ordinary carbon steel structural. The design of the equipment and techniques are used the most advanced, as follows: Continuous casting slab of raw materials used to reduce the metal cutting loss, and better organizational structure of continuous casting, which improves the quality of products; while larger output specifications for the product, can be used hot billet hot charging delivery process, both to reduce the burning and energy consumption can also reduce the rolling gap time and increase productivity; Furnace for the walking-beam furnace, and out of the side into the side of the feeding method adopted out to ensure tightness of the furnace; mill using high-speed wire rod mill, across the board are not twisting rolling, finish rolling to ensure speed of 100 m / s, The maximum rolling speed for the 120m / s. To improve the product microstructure, using controlled cooling after rolling technology, cooling after rolling through the water tank and a set of Stelmor cooling transport system to complete. Stelmor cooling transport system with transport delay type cooling device, it applies to all kinds of carbon steel cooling with better cooling effect. In short, the advanced technology and equipment design is the important guarantee for high quality products. Key Word