Optimization Of Iron Impurity Mixture

Solid waste generated in the process of modern iron and steel production mainly has:the blast furnace slag, steel slag, iron containing impurities (Blast furnace sinter return, dust, iron oxide dust of blast furnace gas, etc.), waste refractory materials, fly ash, gypsum, slag, iron and other large steel grain. How to make good use of solid waste, is an important measure of modern iron and steel industry Protect environment pollution, combining prevention with control, but also enhance the competitiveness of enterprises, an important means to realize the healthy and sustainable development. In modern iron and steel enterprises must be in accordance with the source reduction recycling, remanufacturing, zero emissions and so the overall idea, promote the industrialization of utilization of solid wastes.Anshan Iron and Steel Group Chao yang steel limited processing storage and transportation center prior to the establishment of the four in one day to blending operation using in situ mixed mode. Because of various materials into the quantity every day is not balanced, can not achieve the planned proportional mixing, in situ blending three times, no supervision and inspection, mixing effect is not controllable, also cannot ensure material FIFO. Resulting in material in short time, has not been fully wetting, the material into the ore groove after the easy due to board agglomerate and blocking happens, blocking groove and not smooth groove.Use "batch mixing method" the operation method:quantitative batches made pile is 5000 tons per four in one mixture as a batch, given batch, establishing econometric accounting, at the same time according to ratio calculated for each batch of various material weight. When various materials to meet all the requirements of weight ratio after the beginning of sealed reactor blending. When the field receiving material single species beyond this batch demand, into the next batch, separately stacking. Different timing blending is the original one work area is divided into four working area, each blending operation were replaced with a region, according to the provisions of the frequency, time region of the blending operation.