黎明重工高品质石灰石制砂生产线助力都安高速建设
黔南大地，群山巍峨，一条承载着区域发展与民生期盼的高速公路——都安高速，已于二零二一年建成通车。它连接黔南州都匀市与安顺市镇宁县，远期通达香格里拉，是都香高速的重要组成部分。这条蜿蜒于喀斯特地貌之间的交通动脉，不仅对沿线经济社会发展意义重大，更对工程材料提出了严苛要求。在都安高速建设过程中，黎明重工与世邦携手，为客户提供了全套石灰石破碎筛分装备，以稳定可靠的高品质骨料，为这条西南大通道的顺利建成奠定了坚实基础。
贵州南部磷矿、石灰石、石英砂等资源富集，为工程建设提供了天然的原料优势。其中，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。基于对原料特性和产能需求的精准研判，项目方选用了黎明重工设计的破碎筛分联合生产线。该线以PEW系列欧版颚式破碎机承担初级粗碎任务，该设备采用创新型模块化结构、无焊接机架设计，拥有更高的强度和使用寿命，破碎比大且运行平稳，能轻松应对大块石灰石原料。随后，PF系列反击式破碎机作为二级破碎核心，凭借高耐磨板锤和独特的腔型设计，实现了好的的中细碎作业，出料粒形呈立方体，为后续整形创造了良好条件。进入制砂环节，VSI系列立轴冲击式制砂机充分发挥“石打石”与“石打铁”双重破碎原理，对物料进行精细破碎与整形，显著改善了骨料粒形，使成品砂石级配合理、针片状含量低。最后，S5X系列圆振动筛以强劲的激振力和多层筛分设计，对成品进行精确分级，确保各规格骨料纯净均匀。整条生产线综合产能达到时产近三百吨，在满足工程进度的同时，更保障了骨料质量的持续稳定。
成品骨料粒型圆润、级配稳定、含粉量可控，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，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，高度分别达到约二百七十余米和三百米，在当时同类折H型索塔结构中高度居于国际前列。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。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，每一粒骨料都蕴含着黎明重工装备的稳定与可靠。
在设备配置之外，更值得书写的是黎明重工与世邦对客户需求的深度理解与全方位服务。贵州山区地形复杂、雨季漫长，对设备的环境适应性和运行稳定性提出了挑战。项目之初，技术团队多次踏勘现场，结合原料湿度、硬度及场地条件，优化了主机选型与工艺流程，确保生产线在有限空间内好的布局。设备安装调试期间，服务工程师驻场指导，帮助客户快速掌握操作维护要点。投产后，整条生产线表现出优异的耐磨性能，关键易损件寿命长，更换简便，大幅减少了停机维护时间。同时，反击破与制砂机的协同调节，使砂石成品率可根据工程实际需求灵活调整，既保障了工程高峰期的骨料供应，又避免了资源浪费。
回望都安高速的建设历程，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我国基建技术的突破，也印证了民族装备制造的实力。黎明重工始终坚持创新驱动、品质为本，不夸大、不媚俗，以实实在在的产品性能和工程口碑赢得市场信赖。未来，黎明重工与世邦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，助力更多国家重大工程，为建设交通强国贡献坚实力量。
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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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地 址：中国-郑州-黎明高新技术产业开发区科学大道169号 邮编：450001