四川花岗岩洞渣砂石生产线项目
该项目是川藏铁路雅安至二郎山隧道段建设的重要配套工程，通过将隧道开挖产生的花岗岩洞渣资源化利用，为铁路建设提供高品质砂石骨料，同时实现环保与经济效益双赢。以下从项目背景、技术方案、经济效益及行业价值等方面展开详细介绍：
一、项目背景与核心需求
川藏铁路建设的战略意义川藏铁路是我国“十四五”规划中的好的工程，雅安至林芝段作为全线最难路段，需穿越14条断裂带和21座4000米以上雪山。其中二郎山隧道全长13.4公里，2023年贯通后将原1小时车程缩短至15分钟，极大提升了藏区交通效率。
洞渣资源化利用的必要性隧道开挖产生的花岗岩洞渣（抗压强度≥80MPa）若直接弃置，不仅占用土地、破坏生态，还需承担高昂的运输成本。项目遵循“就近处理、以渣代石”原则，将洞渣加工为砂石骨料，满足铁路混凝土工程与路基处理需求。
二、生产线技术方案与设备配置
工艺设计采用 “三段破碎 + 整形制砂 + 筛分” 工艺，具体流程为：
粗碎：HST250单缸液压圆锥破碎机，处理能力255-605吨/小时，适合高硬度花岗岩。
中细碎：HPT300多缸液压圆锥破碎机，层压破碎原理减少针片状颗粒，产能190-380吨/小时。
整形制砂：VSI6X1263制砂机，“石打石+石打铁”双模式切换，制砂效率提升 30%，成品粒形圆润。
筛分：圆振动筛分级，综合时产 250 吨，精准产出多种级配砂石。
设备优势
HST 单缸圆锥破：结构简单、故障率低，适合高原恶劣工况。
HPT 多缸圆锥破：液压清腔与过载保护功能，适应复杂地质条件。
VSI6X 制砂机：耐磨件寿命长，降低维护成本。
高原环境适应性项目位于海拔3000米以上，世邦黎明技术团队通过强化设备密封、优化润滑系统，确保设备在严寒缺氧环境下稳定运行。
三、经济效益与环保价值
成本节约显著截至2025年，生产线累计加工洞渣400万吨，为川藏铁路节约成本约1.86亿元。相比外购砂石，就地取材降低了运输费用，同时减少弃渣处理成本。
环保效益突出
实现洞渣 “零弃方”，减少土地占用和水土流失。
采用全封闭厂房与除尘系统，粉尘排放达标，符合绿色矿山标准。
社会效益项目带动当地就业，促进藏区经济发展，同时为类似工程提供洞渣资源化示范。
四、行业示范与技术延伸
洞渣加工技术的推广花岗岩洞渣加工工艺已应用于成昆铁路、南玉铁路等项目，其 “三段破碎 + 整形” 模式可复制至其他硬岩洞渣处理场景。
世邦黎明的高海拔服务能力除本项目外，世邦黎明在四川双江口水电站（海拔2400米）、新疆石河子河卵石生产线等高原项目中均有成功案例，技术团队可提供设备安装、调试及长期运维支持。
五、总结
该项目是 “绿色基建” 理念的典型实践，通过技术创新将隧道洞渣转化为更好资源，既保障了川藏铁路的砂石需求，又实现了生态保护与经济效益的平衡。其经验为高海拔、复杂地质条件下的工程建设提供了可借鉴的模式，推动了我国基建行业的可持续发展。
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Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.
LIMING brings a large number of high-qualification talents together. Bai Yinghui, general research and development engineer, is a well-known expert in crushing and grinding area who won the youth medal of technology of the state council and receives special government allowance. LIMING owns an experienced service team, offering the customer free design and professional skill training and live guide for installation and debugging. The company's service networks have spread all over the country. Established client files, and mix the traditional door-to-door service with online service together, complementary the advantages. LIMING has won high recognition from clients.
The company mainly manufactures mobile crushers, stationary crushers, sand-making machines, grinding mills and complete plants that are widely used in mining, construction, highway, bridge, coal, chemical, metallurgy, refractory matter, etc. Product quality is life, and scientific innovation is motive power. LIMING got ISO international quality system certification, European Union CE certification and Russian GOST certification. The company has strong research and development strength and innovation.
LIMING machinery research institute was founded in 2005 which is the most powerful comprehensive technological research institute in the domestic mining machinery industry and provides top scientific research platform for professional personnel. Up to now, LIMING has won 10 national patents, 24 national utility model patents and 3 provincial science and technology achievement awards. The company products remain the international leading level by strengthening international exchanges and cooperation all the time, and has won a wide range of international market, such as Russian, Azerbaijan, Kazakhstan, Turkey, Kuwait, South Africa, Egypt, Vietnam, Malaysia, India, Australia, Korea, Canada and European Union,etc. Through more than 30 years' hard work, LIMING's staff built supremacy of credibility, excellent quality, service "LIMING" brand, and has made outstanding contributions to the development of mechanical manufacturing industry for China and the whole world.
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