true religion outlet uli kls skjh fpm

[v5440479]

,radii shoes sale
Steel plant recycle iron dust and mud of a new way


HOOC or higher,diesel store paris, due to raw materials containing SiO. And other gangue components, and the activity of large, where the reaction process, there may FeO and SiO: reaction to regenerate fayalite; addition the temperature is too high. Reactant porosity decrease, reduction reaction decreased. So when the temperature reaches 11O0 ℃, the target but declined. 4.2 Reduction Roasting time to restore the test indexes Rao baking coal-based direct reduction is an important factor in this study, reduction roasting time on the test target shown in Figure 2b} 93'l metallization (191 a ' Hebei coke end 8987,air jordan high heels, A, C two kinds of non-coking coal end its test targets are shown in Table 4 (reduction roasting temperature of 1050 ~,replica oakley sunglasses, reduction roasting time of 3h). Table 4 also indicators of coal test test from Table 4 The results can be seen, regardless of the kind of coal as a reducing agent used, the test targets were very satisfied with it, can be considered: the reduction in the static tank under reducing conditions, the reduction of coal, they are not very strict, but should be noted that the reduction process is carried out in a confined environment, and no oxidizing atmosphere, so the desulfurization negative, so use of the sulfur content of coal also should be as low as possible in this study are not the sulfur content of coal is high, reduction of production to meet the direct reduction of iron requirements of 44 high-grade iron dust on the direct reduction in the iron and steel companies, often have a high grade of iron dust,true religion outlet, such as open-hearth furnace dust in the iron grade of up to about 67 This part of the furnace dust is also often encountered in the use of a variety of around hard (described before), while the use of short process for recycling of this part of the direct reduction iron dust, you get good quality direct reduced iron its test process shown in Figure 3. this experiment the chemical composition of the high furnace dust in Table 5 Table 5 high-furnace dust and chemical composition () TFeOGaOMgOsi02AIsPe715O.431.O8O.911.1l0100.4OO-08 short high-flow direct reduction furnace dust test indicators: product TFe a 91.77, metallization ≥ 93.22, iron recovery £ ≥ 84.94 amidine finished stone components of the total <4, the sulfur content of 0.04, so that this direct furnace smelting reduction of iron products are of high quality scrap substitutes' in a lower grade of iron dust and mud after the first reduction process of iron in selected points, the product of the gangue constituents and hazardous impurities (s, P) content also very low and it is also of high quality special steel smelting furnace charge situation, so. direct reduction to 13 a | 7 cattle mineral comprehensive platform I use, Ig96No.5 calcium co-precipitation wet ultra-fine zirconium powder prepared by co-precipitation above the zirconium calcium (cazro) powder, and the use of chemical analysis, centrifugal sedimentation method and perspective means of electron microscopy investigation of the inspection side of the process. ≯, Bin magnetic f, steamed bread 1 Introduction superfine powder electronic CaZrO ceramic industrial production and scientific research in one important new material on its synthesis, domestic multi-use dry process, that is, first mechanical mixing station ZrO and CaC0, powder, and then calcined products derived CaZrO, but because of the weak acid and calcium zirconium The synthesis of alkaline makes CaZrO become quite difficult around this paper describes one kind of high-speed rail Dustwallow 3 short processes of direct reduction iron processing iron and steel companies not only solve the dust and mud waste of resources, environmental problems, but also get high quality inexpensive direct reduced iron product. Received -1 ~ '96O3-1B · l4 · wet preparation process, the industrial pure ZrOC1z · 8HO (comparable only ZrO 60) and industrial pure CaC [as raw materials , obtained by co-precipitation method with a mixture of zirconium and calcium station objects, then a total of sediments in place after pre-sintering temperature under high temperature calcination, it can be even fine CaZrO, powder due to reaction with a wet preparation technique matter fully and evenly mixed characteristics, so CaZrO synthesis easier. experimental study in the simulated conditions of direct reduction is mainly static, so the charge should be used in canned or down draft kiln tunnel kiln direct reduction roasting. Because the use of such a roasting kiln investment, low production costs. In addition, the lower the capacity of this kiln, it is suitable for the production of iron steel company in the dust and mud. 5 Conclusion 1 by direct reduction of iron and steel company dealing with iron dust and mud is technically feasible and economically reasonable 2 The Process Steel iron dust and mud, not only can solve the problem of re-use of secondary resources and environmental pollution, can produce high-quality low-cost electric furnace steel raw materials. 3 Its reasonable parameters are: reduction roasting temperature of 1050 ℃, reduction roasting time of 3h, C / Fe = 05 a O. 7
More articles related to topics：


Highway oval curve is calculated

ed hardy canada wpk brh adct vhf