Developed by CITIC Heavy Industries Co., Ltd., China's first domestically produced overflow ball mill with the largest diameter successfully completed its first trial run at a mining site in Nanmutuni, Ghana, according to the company on November 29. It is the largest ball mill ever exported to the overseas market, representing significant advancements in technical performance, manufacturing process, and processing period.

11月29日，记者从中信重工机械股份有限公司获悉，其研制的国产首台套最大直径溢流型球磨机，在加纳纳穆蒂尼矿业项目现场一次试车成功。这也是截至目前，我国出口海外的规格最大球磨机，在技术性能、工艺制造、加工周期等方面实现新跃升。

This overflow ball mill, with a diameter of 8.2 meters and a length of 12.7 meters, is a key equipment for the Namutoni gold mining project. It successfully passed factory tests and was delivered to the customer in August last year.

此次由中信重工研制的溢流型球磨机直径为8.2米、长12.7米，是纳穆蒂尼金矿项目的核心关键装备，于去年8月在该企业完成工厂试车并交付客户。

"We, in line with international standards, have applied key technologies such as variable frequency control of dual-drive synchronous motors, utilized three-dimensional parameterized design and smart manufacturing, representing international high-end mining equipment," said Jin Song, General Manager of CITIC Heavy Industries (Luoyang) International Holdings Co., Ltd.

“我们按照国际标准，应用变频双驱同步电机驱动等关键技术，采用三维参数化设计和智慧工厂智造，代表了目前国际高端矿业装备的先进水平。”中信重工国际公司总经理靳松说。

Furthermore, CITIC Heavy Industries supplied the Namutini gold mining project with two CC400 cone crushers, one PXZ54-75 gyratory crusher and one CSM-950 vertical stirred mill, all of which have been successfully commissioned. During the on-site installation and commissioning phase, CITIC Heavy Industries dispatched a total of 8 technical engineers abroad, showcasing its technical expertise and professional services in mineral processing.

此外，中信重工为纳穆蒂尼金矿项目提供的两台CC400圆锥破碎机、一台PXZ54-75旋回破碎机、一台CSM-950立式搅拌磨也一并投产，特别是在现场安装调试阶段，中信重工先后安排技术服务工程师出国服务共计8人次，充分展示了其在矿物加工领域的技术实力和专业服务能力。

The Namutoni gold mining project is not only the first large-scale gold mine built in Ghana by Shandong Gold Group, but also its first such project abroad. In addition, it is the first large-scale self-built project by a Chinese enterprise in West Africa, as well as the first large open-pit gold mine with a complex ore sorting and smelting process constructed by Chinese enterprises overseas. As one of the largest gold mines in West Africa, it is expected to reach an annual output of up to 300,000 ounces once fully operational. (Chinese source: Henan Daily Reporter: Chen Xuehua and Fan Kunpeng Translator: Zhou Jinmiao Intern: Liang Tian Proofreader: Chen Xingjie and Zhao Hanqing)

据了解，纳穆蒂尼金矿项目既是山东黄金集团公司在加纳的首座海外自建大型金矿，也是我国企业抱团出海在西非的首个大型自建项目，还是我国企业在海外首个大型露天复杂选冶工艺金矿自建项目。作为西非地区最大的金矿之一，其投产后年产量预计可达30万盎司。（中文来源/河南日报 记者/陈学桦 范坤鹏 编译/周金淼 实习生/梁甜 审校/陈行洁 赵汉青）

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