驾车行驶在江北翻坝高速上，路面平整，视野开阔，很少有人会去想：脚下这些坚硬的砂石骨料是从哪里来的。

宜昌夷陵区黄花镇这一带矿产资源丰富，铁矿、磷矿、花岗岩都有分布，矿山不少。不过这次要看的是一个特别的项目——一条花岗岩破碎生产线。作为在矿山行业待了有些年头的人，我对这类现场并不陌生，但这次实地转了一圈下来，还是有不少感触。

项目所在地位于黄花镇，周边花岗岩矿藏储量相当可观。这条生产线处理的是自有矿山的爆破料，以花岗岩为主，偶尔混入一些玄武岩，原料块度从几十公分到半米多不等。经过破碎、筛分、制砂等多道工序之后，原先那些棱角分明的大石头变成了零到几毫米的机制砂，以及几种规格的碎石。

这些成品看着不起眼，去的地方可不普通。江北翻坝、宝神、十里、沙公、枣潜等高速公路工程都用了这里的骨料。一条生产线同时服务五条高速，放在行业内也算是很有分量的“履历”了。整条线综合下来每小时产出三百多吨，产得稳定，成品粒形也不错。

现场负责人告诉我，以前这类好的级路面用的骨料，对粒形、级配要求很严，不好伺候。但这条线从投产到现在一直跑得很顺，核心秘密就在黎明重工的整线设备配置上。

走到设备区，一台颚式破碎机蹲在生产线最前面，个头不小，承担着粗碎任务。这是PE系列颚破，结构扎实，对于花岗岩这种高硬度的物料，粗碎阶段必须有足够的“蛮力”把大块矿石啃下来。这些年黎明重工在颚破技术上迭代了好几代，从腔型优化到破碎效率提升都做了不少改进。

粗碎出来的物料继续往下走，中碎交给了一台HST单缸液压圆锥破碎机。这台设备有个很实用的特点——过铁保护功能。矿山里偶尔会混进铁块之类的异物，以前遇到这种情况得停机人工处理，耽误工夫不说还费人工。有了过铁保护，设备能自动把异物排出来再恢复正常工作，省心不少。

真正让我感兴趣的是后面两台HPT多缸液压圆锥破碎机。HPT系列在业内的口碑一直不错，走的是层压破碎的路子。简单来说，物料在破碎腔里不是被一下子砸碎的，而是一层一层地被挤压，这样出来的颗粒形状规整，细粒级含量也高。我站在设备旁边观察了一会儿，运转声音沉稳，没有那种让人心里发慌的剧烈震颤。听现场技术人员讲，HPT的易损件寿命比同类型设备长了不少，运行成本自然就下来了。

制砂环节有两台VSI立轴冲击式制砂机“坐镇”。对于机制砂的生产来说，整形效果至关重要。这套设备采用了“石打石”和“石打铁”两种破碎模式结合的设计，破碎腔内物料相互撞击、研磨，出来的机制砂粒形圆润，级配合理，刚好满足高速路面对高品质骨料的严苛要求。

筛分部分配了好几台S5X系列圆振动筛，把不同粒径的成品准确分离开来。整条线从前端破碎到尾端筛分，设备之间的衔接流畅，布局紧凑，看得出是下了功夫设计的。

这几年跑矿山，能明显感受到一个变化：大家越来越在意生态这件事了。

宜昌地区在矿山生态修复方面力度不小，构建了“谁修复、谁受益”的机制，一些矿区做到了“边开采、边修复”，可绿化区域覆盖率达到了百分用心。我看到的这个项目，矿区现场已经基本看不出开采留下的“伤疤”了——边坡覆了土、种了草，废石场平整复垦，整片矿区慢慢融进了周边的山林。

碎石机轰鸣着干活，山坡上的草也在悄悄长着。这两件事放在一起，就是现在矿山发展该有的样子。难怪都说，能不能把“绿色”二字落到实处，考验的不只是态度，更是技术和投入。

在跑车的每一条高速路上，在高楼大厦的一砖一瓦里，在矿区从“荒山”变“青山”，从黄花镇的矿山到五条高速公路的工地，黎明重工的设备贯穿了这条生产线的每一个环节。成立将近四十年，从一家普通的机械厂成长为产品远销全球的技术企业、黎明重工而是一点一点把破碎筛分这件“苦差事”做深、做精、做透。

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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.

现场视频如下：