| 辽宁某铁矿石碎磨特性研究 |
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| 引用本文： | 刘杰,袁帅,李艳军,韩跃新,刘畅,杨光. 辽宁某铁矿石碎磨特性研究[J]. 金属矿山, 2017, 46(6): 85-88. DOI: 10.3969/j.issn.1001-1250.2017.06.017 |
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| 作者姓名： | 刘杰 袁帅 李艳军 韩跃新 刘畅 杨光 |
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| 作者单位： | 1.东北大学资源与土木工程学院，辽宁 沈阳 110819； 2.鞍山钢铁集团公司东鞍山烧结厂， 辽宁 鞍山 114001 |
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| 基金项目： | 中国地质调查局地质调查项目，国家自然科学基金项目 |
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| 摘 要： | 辽宁某铁矿石铁品位为28.74%，铁主要以赤铁矿形式存在。为确定矿石合理碎磨工艺流程，进行了矿石粉碎特性研究。磨矿功指数试验表明，矿石Bond球磨功指数为8.66 kWh/t，属中硬矿石且易磨，可采用自磨工艺。为进一步考察矿石在自磨(半自磨)机中的粉碎特性，进行了冲击粉碎试验和磨蚀粉碎试验。结果表明：矿石抗冲击粉碎作用模型为t10=80.82×（1-e-0.53×Ecs），其A×b值为42.8，抗冲击粉碎能力属于中硬范畴；磨蚀指数Ta值为0.28，抗磨蚀能力属于硬的范畴。试验结果可以为该矿石合理碎磨方式的选择提供基础数据支撑。
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| 关 键 词： | 碎磨特性 功指数 落重试验 粉碎模型 磨蚀指数 |
Study on Comminution Characteristics of Iron Ore from Liaoning |
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| Liu Jie,Yuan Shuai,Li Yanjun,Han Yuexin,Liu Chang,Yang Guang. Study on Comminution Characteristics of Iron Ore from Liaoning[J]. Metal Mine, 2017, 46(6): 85-88. DOI: 10.3969/j.issn.1001-1250.2017.06.017 |
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| Authors: | Liu Jie Yuan Shuai Li Yanjun Han Yuexin Liu Chang Yang Guang |
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| Affiliation: | 1.College of Resource and Civil Engineering，Northeastern University，Shenyang，110819，China；2.Dong′anshan Sintering Plant，Anshan Iron & Steel Group Corporation，Anshan 114001，China |
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| Abstract: | There is 28.74％ iron in an iron ore in Liaoning,iron mainly exists in form of hematite.To determine proper comminution process,comminution characteristics research on the ore were conducted.Bond work index test indicated,Bond work index of ore is 8.66 kWh/t,and the ore belongs to medium-hard category and can be dealt with semi-autogenous grinding process.In order to further investigate crushing characteristics of ore in semi-autogenous grinding machine,impact crushing test and abrasion crushing test were carried out.Result shows that model of ore impact grinding is t10 =80.82 × (1-e-0.53×Ecs),A × b =42.8,the resistance to crushing the ore belongs to the category of medium-hard.And the abrasion index Ta =0.28,its abrasion resistance belongs to the hard category.Experiment results can provide basic data support for rational grinding method of the mineral. |
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| Keywords: | Comminution characteristics Bond work index Drop weight test Comminution model Abrasion resistance index |
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