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世界上筒體內徑最大（Φ12.2m）的自磨機

——2023年重型機械世界之最科技成果獲獎項目專(zhuān)題報道

設備/技術(shù)名稱(chēng)：φ12.2×11.0m自磨機

研制單位：中信重工機械股份有限公司www.citichmc.com，

智能礦山重型裝備全國重點(diǎn)實(shí)驗室，洛陽(yáng)礦山機械工程設計研究院有限責任公司

首次投運時(shí)間：2016年4月

聯(lián)系人：王冬樂(lè )，18937993690  ，wangdongle@citic-hic.com.cn

 ? 12.2×11.0m自磨機，其筒體內徑達12.2m，筒體長(cháng)度達11.0m，多滑履軸承直徑達4.5m，總重超過(guò)3700噸，年產(chǎn)2200萬(wàn)噸品位65%鐵精礦。

本項目首創(chuàng )了高承載力多滑履軸承和潤滑技術(shù)，解決了作業(yè)環(huán)境復雜、超大型重載支承的技術(shù)難題；發(fā)明了大型磨機筒體和端蓋“多片組合”設計制造技術(shù)，解決了大型磨機超大零部件極限制造技術(shù)難題；構建了大型磨機的多場(chǎng)耦合動(dòng)力學(xué)模型，開(kāi)發(fā)了大型磨機的動(dòng)態(tài)特性分析方法，解決了大型磨機基礎共振的技術(shù)難題，使裝備得到了安全、可靠的運行；構建了大型磨機多元信息融合的在線(xiàn)智能監控系統，開(kāi)發(fā)了大型磨機工作狀態(tài)的智能監測監控技術(shù)，實(shí)現了磨機的預測性維護。

經(jīng)國家礦山機械質(zhì)量監督檢驗中心檢測，主要性能指標符合設計要求。該成果在中信泰富SINO鐵礦進(jìn)行了成功應用，取得了較好的經(jīng)濟效益和顯著(zhù)的社會(huì )效益，中國重型機械工業(yè)協(xié)會(huì )鑒定委員會(huì )認為項目成果整體技術(shù)達到國際領(lǐng)先水平。

圖1、圖2：應用現場(chǎng)

The world's largest autogenous mill by inner diameter (12.2m)

φ12.2×11.0m AG Mill

CITIC HEAVY INDUSTRIES CO.,LTD.  https://www.citichmc.com/

State Key Laboratory of Intelligent Mining Heavy Equipment

Luoyang Mining Machinery Engineering Design Institute CO.,LTD.

The ?12.2 ×11.0m autogenous mill has a shell diameter of 12.2m, a shell length of 11.0m, a multi slide bearing diameter of 4.5m, a total weight of over 3700 tons, and an annual output of 22 million tons of 65% grade iron concentrate.

This project pioneered high bearing capacity multi sliding shoe bearings and lubrication technology, solving the technical difficulties of complex operating environments and ultra large heavy-duty supports; Invented the "multi piece combination" design and manufacturing technology for the large mill shell and head, solving the technical problem of extreme manufacturing of oversized components in large mills; Constructed a multi field coupled dynamic model for large-scale grinding machines, developed a method for analyzing the dynamic characteristics of large-scale grinding machines, solved the technical problem of foundation resonance of large-scale grinding machines, and ensured the safe and reliable operation of the equipment; Constructed an online intelligent monitoring system for the fusion of multiple information of large-scale mills, developed intelligent monitoring and control technology for the working status of large-scale mills, and achieved predictive maintenance of the mills.

After testing by the National Mining Machinery Quality Supervision and Inspection Center, the main performance indicators meet the design requirements. This achievement has been successfully applied in CITIC Taifu SINO iron mine, achieving good economic and significant social benefits. The Appraisal Committee of China Heavy Machinery Industry Association believes that the overall technology of the project achievement has reached the international leading level.