导读：

黔南大地，群山巍峨。二零二一年六月，一条承载着区域发展与民生期盼的交通动脉——都安高速全线建成通车。作为国家级高速都香高速的首段，都安高速连接黔南州都匀市与安顺市镇宁县，远期通达香格里拉，全长约二百七十六公里，是贵州高速公路建设史上投资规模最大的单体工程。这条蜿蜒于喀斯特地貌之间的交通要道，对工程材料提出了极为严苛的要求。在项目建设过程中，黎明重工与世邦携手，为工程提供了全套石灰石破碎筛分成套装备，以稳定可靠的高品质骨料，为这条西南交通大动脉的顺利建成提供了坚实的材料保障。

依托资源优势，精准匹配加工方案

贵州南部矿产资源富集，石灰石远景储量高达数十亿吨，为工程建设提供了得天独厚的原料保障。石灰石作为路面基层、桥梁隧道及混凝土骨料的主要原料，其加工品质直接关系到工程质量。基于对原料特性和工程需求的精准研判，项目方选用了黎明重工设计的破碎筛分联合生产线。该线采用PEW系列欧版颚式破碎机承担初级粗碎任务，该设备轴承座采用整体式铸钢结构，重型偏心轴采用锻坯加工，结构稳定可靠；“V”型破碎腔与齿形护板设计有效增大了破碎面积，物料在破碎腔内不易发生堵料，破碎效率显著提升。完成粗碎后，PF系列反击式破碎机承担二级破碎作业，利用冲击能破碎物料，产品呈立方体，粒度均匀，可完全满足高级公路路面及桥梁建设对骨料的粒形要求。随后的VSI系列立轴冲击式制砂机对物料进行精细破碎与整形，产品呈立方体，粒形好、级配合理、细度模数可调。整条生产线配以S5X系列圆振动筛进行精确分级，确保了各规格骨料的洁净与均匀，综合产能达到了时产数百吨的水平，在满足工程进度的同时，保障了骨料质量的持续稳定。
助力好的工程，品质经受实战检验

成品骨料粒型圆润、级配稳定，经检测完全满足高速公路高性能混凝土及水稳层的使用标准。尤其值得一提的是，都安高速的控制性工程——云雾大桥，对骨料品质提出了近乎苛刻的要求。该桥位于贵定县云雾镇境内，全长一千七百余米，常年掩映于山间云海之中。其主塔设计为折“H”型钢筋混凝土结构，两座索塔高度分别达到二百七十余米和三百米，在同类折“H”型索塔结构中高度居于世界前列。如此超高索塔对混凝土的强度、抗裂性及耐久性要求极高，而骨料的粒形及级配是决定混凝土性能的关键因素。云雾大桥建设期间，研发了基于温差控制的大体积混凝土智能温控系统，对骨料品质的稳定性提出了更高标准。正是得益于黎明重工设备加工的更好石灰石骨料，混凝土拌合物和易性良好，硬化后强度高、体积稳定，为云雾大桥这一标志性工程的顺利实施提供了可靠的材料支撑。从路基填料至桥梁构造，每一粒骨料都凝结着黎明重工装备的稳定与可靠。
扎根技术创新，成就行业标杆

作为一家专注于矿山、建筑、能源等国家重点基础设施建设工程所需大型装备研发制造的企业，黎明重工自一九八七年成立以来，始终坚持技术创新与品质为本的发展理念。公司产品涵盖建筑破碎、矿山破碎、工业制粉、绿色建材四大领域，拥有超过百个品种，远销全球一百多个国家和地区。从粗碎到细碎，从筛分到整形，黎明重工与世邦的设备如同一条精密的骨料加工链条，将贵州山间的石灰石转化为高品质工程材料，最终凝结为飞跨深谷的桥梁和延伸向远方的路面。云雾大桥耸立于群山之巅，其雄伟身姿不仅见证了中国基建技术的突破，也印证了中国装备制造的实力。未来，黎明重工将继续深耕破碎筛分领域，以更先进的装备和更完善的服务，为更多国家重大工程建设贡献坚实力量。

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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