Prediction of the position of coal particles in an air dense medium fluidized bed system

来源 :International Journal of Mining Science and Technology | 被引量 : 0次 | 上传用户:Wang_Sheng
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
An air dense medium fluidized bed separator(ADMFBS) is used for dry beneficiation of coal using ultrafine magnetite particles as a pseudo-fluid medium. In this process, the coal particle gains additional weight due to coating on its surface and deposition at dead zone area by fine magnetite particles.Hence, the effective density of coal particle increases and the position of coal particle changes accordingly. In this work, an attempt was made to predict the position of coal particle in non-bubbling condition dense medium fluidized bed system. Coal particles of different shape such as cubical, rectangular prism,spherical and triangular prism with different projected area and density were used. The results show that the position of coal particle in air dense medium fluidized bed follows descending order with respect to the increase of density, projected area of coal particle and different shapes(i.e., triangular prism, cubical,rectangular prism and spherical). Empirical mathematical correlations were developed to predict the position of coal particle. An air dense medium fluidized bed separator (ADMFBS) is used for dry beneficiation of coal using ultrafine magnetite particles as a pseudo-fluid medium. In this process, the coal particle gains additional weight due to coating on its surface and deposition at dead zone area by fine magnetite particles .ence, the effective density of coal particle increases and the position of coal particle changes accordingly. In this work, an attempt was made to predict the position of coal particle in non-bubbling condition dense medium fluidized bed system. Coal particles of different shape such as cubical, rectangular prism, spherical and triangular prism with different projected area and density were used. The results show that the position of coal particle in air dense medium fluidized bed follows descending order with respect to the increase of density, projected area of ​​coal particle and different shapes (ie, triangular prism, cubical, rectangular prism and spherical). Empirical mathematical corr elations were developed to predict the position of coal particle.
其他文献
濒临死亡是什么感觉?42岁的魏先生深有体会。两个多月前他突然出现胸闷心慌、全身发抖、呼吸困难等症状,经及时治疗,“警报”解除。此后,平均一星期送次急诊,最后发展到担心自己来不及救治,而不敢离开医院。医生做了详细检查,结果一切正常。江苏省中医院脑病中心心理门诊王晓勇主任判断其为惊恐发作,是焦虑急性发作表现。  原来不久前,魏先生的哥哥罹患肺癌不幸去世,忙完哥哥的事后,魏先生就干咳不止。担心会像哥哥一
期刊
国家标准《钢门窗》编制组于2014年8月4日在北京召开第二次工作会。会议重点讨论了《钢门窗》征求意见稿。会议由主编单位谭宪顺主持,共19家参编单位,23人参加了会议。住房和城
A low grade graphite ore from eastern India was beneficiated by flotation to improve its quality. The ore was composed of 87.80% ash and 8.59% fixed carbon. Pri
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
中国是世界上自然灾害最为严重的国家之一,尤其是近10年来,在全球气候变化背景下,极端天气气候事件明显增多,自然灾害风险不断增加,大灾巨灾频发多发,给人民群众生命财产安全
9月11日下午,住建部钢结构住宅产业化推进课题组的专家和新疆住建厅、兵团建工师、新疆建筑设计院和新疆部分钢结构企业领导一起来到由浙江杭萧钢构股份有限公司承建的乌鲁木
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
随着计算机技术的不断发展,计算机视觉技术在不断的发展.将计算机视觉技术应用在自动化领域中,可以通过尖端技术手段提升工作质量,规避各种问题与不足.基于此,文章主要对计算
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
外交部作为国家减灾委成员单位,积极配合国内各部门完善我国的减灾规划,推动开展减灾救灾国际合作,加强防灾减灾的经验分享与信息交流,完善海外救灾领事保护工作,通过“减灾