共查询到20条相似文献,搜索用时 46 毫秒
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随着水钢4^#焦炉开工投产,与4^#焦炉配套的地面除尘站装置进入了调试和生产阶段。本地面除尘站由1个装煤除尘系统和推焦除尘系统组成。4^#焦炉装煤除尘选择的是烟气燃烧干法除尘技术,推焦除尘选择的是干法除尘工艺,每个除尘系统都由电机、液力偶合器、风机和脉冲布袋除尘器等设备组成。该工艺流程捕集、净化烟气效率高,技术成熟,控制操作方便,可实现达标排放。生产过程中由于采用了预喷涂技术和液力偶合器调速技术,既解决了滤袋粘结和堵塞问题, 相似文献
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焦炉推焦除尘技术在我厂的应用 总被引:1,自引:0,他引:1
焦化工业是环境污染大户,而焦炉炭化室推焦过程所产生的烟尘是焦化厂的最大粉尘污染源。为改善操作环境就要求将烟尘收集起来,正确疏导。抽吸和最终净化。目前国内焦化厂有推焦除尘装置的仅限于浦东、宝钢、安钢、首钢、武钢及本钢焦化厂等。我厂5、6号焦炉的推焦除尘系统,综合了其他厂家工艺与设备的优点,采用了移动皮带密封集尘干管与地面站净化系统除尘相结合的方式,运转率高、效果好。1推焦除尘工艺我厂5、6号焦炉推焦除尘系统于1998年正式投运,工艺流程见图1。焦炉出焦时,在拦焦机导焦槽和熄焦车等处产生大量阵发性高… 相似文献
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I. D. Drozdnik Yu. S. Kaftan N. B. Bidolenko V. N. Dudyak I. E. Poluektov 《Coke and Chemistry》2013,56(3):100-106
Coke with ore additive may be produced from Zarechnaya DG coal (Kuznets Basin) and high-sulfur Zh coal (from Samsonovskaya and Krasnolimanskaya enrichment facilities, Donets Basin), which is of low technological value and is used in small quantities in batch for the production of blast-furnace coke. The ore additive employed is dust from the dry gas purifiers in the production of commercial silicomanganese, manganese-carbonate concentrate, and manganese-oxide concentrate of the first and second kinds. In experimental batches, the content of the ore additive is adjusted in 5% increments over the range 0–15%. On introducing the ore additive in the batch, the corresponding quantity of G coal is removed, with constant content (40%) of Zh coal. Experimental batches are coked in a 5-kg laboratory furnace (designed by Ukrainian Coal-Chemistry Institute). The coke obtained is tested by methods including technical analysis and determination of the electrical resistivity, the reactivity, and the structural and mechanical strength. In the production of highly reactive coke with high electrical resistivity, the best ore additive is 10–15% manganese-oxide concentrate. The coke is suitable for transportation, transfer, sorting, and crushing to the required size. 相似文献
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分析了捣固炼焦与顶装炼焦的焦饼收缩度差异性及其影响因素,探讨了低挥发分配煤在捣固炼焦设计和生产等方面的问题,并提出了下列措施:适当降低加热水平;设定合理的结焦时间;设计可调煤饼宽度的装煤车;根据配合煤Vdaf和X值调整煤饼宽度、高度及采用XD值指导生产,以保证煤饼与炉墙有足够的间隙和适宜的空间温度。 相似文献
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Operational experience with a system for dust-free coke discharge is outlined. 相似文献
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Several pitch materials and a petroleum coke were added to coke oven charges in an attempt to make good metallurgical coke from Canadian coal of poor coking quality. Coal and petroleum pitches were added to a low fluid western Canadian coal of medium volatile bituminous rank, and the blends coked in a technical-scale moveable wall test oven having a 230-kg charge capacity. Pitches improved coke tumble test indices, the principal coke quality parameter related to blast furnace performance. Varying levels of petroleum coke were added to an eastern Canadian coal of high volatile bituminous rank, and the blends, some partially briquetted, were carbonized in a test oven. Tumble indices of coke from the partially briquetted charges approached an acceptable level. These investigations confirm that petroleum products as well as coal derivative can play a useful part in the production of a metallurgical strength coke from poor or non-coking coals. 相似文献
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分析了热压成型及冷压成型方法的优劣。选择增强剂、固化防水剂等添加剂对水玻璃粘合剂进行改性,研究了添加剂对型焦性能的影响。实验结果表明,焦粉成型添加剂加入量为:水玻璃粘合剂12%,增强剂0.2%,固化防水剂0.3%,成型焦球生(干)型焦落下强度、生(干)型焦压缩强度、耐水性、热稳定性、反应活性等性能可满足工业生产的工艺要求。 相似文献
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通过检测焦炭的M40、M10、CRI、CSR、焦炭的气孔结构、光学组织结构,分析了干熄焦工艺对顶装焦和捣固焦质量的影响程度,检测表明,捣固焦炉配干熄焦工艺技术不但可提高焦炭质量,还可提高弱黏煤比例,节约优质焦煤。 相似文献