共查询到20条相似文献,搜索用时 93 毫秒
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<正>焦化厂目前进厂洗精煤共分为13个小类,日用量在5500吨左右,根据生产需要理论计算焦化煤场库存量应控制在75000吨左右,即相当于14天左右的消耗量,随着公司低库存战略的推进,公司要求焦化、煤化煤场总库存量控制在100000吨左右(相当焦化库存5.5万吨左右),即相当于10天的消耗量,因此,根据实际配比计算,最大小类 相似文献
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马钢自主制造的第一套Ф250mm管状带式输送机,成功地运行于焦化煤场至综合电厂动力煤输送过程中,本文通过了解其设备性能探讨其应用。 相似文献
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焦化厂备煤系统储煤形式主要有传统露天煤场、圆筒仓式储煤槽、封闭式煤场等三种,本文对几种煤场的优缺点进行了比较,并对封闭式煤场进行详细的论述,结合西昌钢钒实例分析,说明各种煤场的优缺点和适用范围. 相似文献
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焦炭含硫班间波动对高炉冶炼的影响比焦炭本身含硫对高炉冶炼影响还要大。减少焦炭含硫班间波动,稳定质量,主要取决于焦化煤场的均匀性和配煤的准确性。 相似文献
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介绍了焦化厂三配煤车间,根据煤种的质量指标对焦化厂的主焦煤、1/3焦煤、瘦焦煤应用A、B法进行重新分类,调整煤场货位,加强对新分类煤种的管理,稳定提高配煤质量的措施。 相似文献
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焦化厂煤堆的自燃与防治 总被引:1,自引:0,他引:1
洗精煤是焦化厂的主要原料,多在煤场露天存放,煤的自燃性对焦化厂储煤形成了很大的隐患。针对煤的自燃机理和防治进行讨论,阐明煤自燃的机理、过程、影响因素和综合防治,对焦化厂的储煤能有所裨益。 相似文献
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《钢铁冶炼》2013,40(6):416-420
AbstractThe blast furnace coke quality depends on the characteristics of coal blend, precarbonisation techniques adopted such as stamping, vibrocompaction etc., and coking conditions. Of the above, coal blend plays a significant role in the production of quality coke. Furthermore, the quality of the blend depends on the quality of individual coals and their interaction making up the blend. Coal, being a highly heterogeneous material, requires special care for determination of its properties and blending of individual coals for coke making. Coal fluidity is one such important coking property which highly influences the coke quality. The hard coking coals having good fluidity, which yield good coke, however are not only very expensive, but also are limited in reserves. Unlike, other properties, coal loses its fluidity on weathering, i.e. oxidation in presence of air on long storage in the yard, and the fluidity value changes on blending with different coals. To understand the effect of coal fluidity on coal blending and there by the coke quality, studies have been conducted using the industrial scale coals and coal blends. An empirical relation has been developed between actual blend fluidity and calculated fluidity using logarithmic weighted average from fluidity of individual coals. Blending of non-coking coals above 20% with the hard coking coals used in this research decreases the blend fluidity and impairs the coke quality. It was seen that the coals lose their fluidity on weathering, and the value becomes less than half after a two months of storage at site. Weathering appears to be more rapid in case of semisoft than hard coking coals. The present paper discusses the influence of coal fluidity on coal blend fluidity and changes on weathering. 相似文献
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随着八钢2500m3的大高炉相继投产对焦炭质量的要求也在不断提高,而焦化又面临着优质的煤资源紧缺的严峻形势。八钢拥有的煤矿以肥煤为主,致使配合煤偏肥,焦炭气孔较多,气孔壁薄、焦炭耐磨强度较差。针对此问题八钢焦化厂通过40kg小焦炉配加新疆拜城煤进行配煤炼焦实验分析,提出了新疆拜城煤在捣鼓焦炉中配量的合理性,优化配煤结构,提高焦炭质量。 相似文献
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CHENG Leyi CAO Yinping LI Lianghua YU Guopu Ironmaking Plant Baoshan Iron & Steel Co. Ltd. Shanghai China 《Baosteel Technical Research》2010,(Z1)
The coal packing density on coking chamber was tested under different conditions of moisture during coal charging.The result was studied through comparing with the lab research conditions as well as different mixing-ratios of briquette situation,and the effect of CMC process on the coal packing density was also analyzed.The difference of temperature field and coal carbonization in the coking chamber between CMC and briquette was put forward by testing the center temperature of the coke button.With SCO ex... 相似文献