The CCPP project is a supporting project for the 5 million tons of high-quality sheet metal project in Anshan Iron and Steel Group. It is one of the key technological transformation projects of Anshan Iron and Steel Group during the 10th Five-Year Plan period. The generator set is the world's most powerful and most advanced combined cycle generator for burning low-calorific value blast furnace gas. Its main equipment is imported from Mitsubishi Corporation of Japan and is the first in China. The unit uses the blast furnace gas and coke oven gas, which are by-products of the blast furnace, as fuel, and generates electricity in the gas-steam combined cycle generator set. Through the recycling and utilization of blast furnace gas by CCPP, it can reduce the discharge of blast furnace gas, reduce energy loss, reduce atmospheric pollution, and obtain a large amount of electric energy by using the higher thermoelectric efficiency of this device. The maximum power generation per hour can reach 300,000. In kilowatt hours, the annual power generation capacity is more than 2 billion kWh, which can save more than 700,000 tons of standard coal per year than the same level of thermal power plants. It has the advantages of high overall cycle efficiency, minimal environmental pollution, low unit investment, good peaking performance, quick start and stop, low land occupation, low water consumption, short construction period, high degree of automation, and low operating personnel. A green, environmentally friendly project that uses secondary energy.
Continuous casting slabs or primary rolling slabs are used as raw materials, heated by a stepping furnace, and dephosphorized by high-pressure water, and then enter the roughing mill. The rough rolling material is cut through the head, tail, and then into the finishing mill, and computer-controlled rolling is carried out. After the final rolling, it will go through laminar cooling (computer-controlled cooling rate) and take-up by the coiler to become a straight hair coil. The head and tail of straight hair curls tend to be tongue-shaped and fish-tailed, with poor thickness and width accuracy, and often have wavy, folded, tower-shaped and other defects on the edges. The coil is heavier and the inner diameter of the steel coil is 760mm. (Generally used in the pipe-making industry.) After straightening the hair through the cutting head, tail cutting, trimming and multi-pass straightening and smoothing finishing lines, and then cutting or re-rolling, it becomes: hot rolling steel plates, flat hot rolled steel coils, slitting tapes and other products. If the hot-rolled finishing coil is pickled to remove scale and coated with oil, it will become a hot-rolled pickled coil.
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Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhousteel.com