这处广西的大型国有锰矿，之前的细碎环节一直用着传统的老型号设备，用了很多年，慢慢就跟不上生产的需求了。最突出的问题就是成品粒度降不下来，粒型也不稳定，后续的分选工序要多花不少功夫，整条线的效率卡在了细碎这最后一环。矿上的技术团队前后对比了不少方案，最终决定把原有的两台细碎设备全部替换，选用黎明重工的HPC220多缸液压圆锥破碎机来完成这次技术升级。

很多跑过矿山现场的人都知道，锰矿石属于硬度不低的金属矿石，细碎环节最考验设备的综合性能。HPC220本身就是针对高硬度矿石的中细碎场景设计的产品，采用了固定主轴、小球面轴互等的优化结构，结合层压破碎的工作原理，能让矿石在破碎腔里受到充分的挤压和研磨，不仅能把粒度降下来，还能让成品里立方体颗粒的占比大幅提升，针片状的不合格料明显减少。设备自带的全液压操作系统，把保险、清腔、排料口调整和锁紧功能整合到了一起，遇到混进矿石里的能不破碎硬物时，过铁保护装置能快速动作释放硬物，之后立刻复位继续生产，不用像老设备那样一遇到铁块就得停机大半天处理。搭配的多点分体液压润滑控制系统，能给轴承提供双重的润滑保护，哪怕长时间连续运转，也能把核心部件的磨损控制在合理范围内。

这套新设备上线之后，直观的变化就是成品粒度稳稳降到了12毫米以下，而且整个粒级分布特别均匀，再也没有之前那种忽粗忽细的情况。矿上的生产线每天要长时间连续运转，换了新设备之后，整条细碎环节的运行一直很可靠，很少出现非计划停机的情况，之前老设备每个月要花不少时间在维护和调整上，现在现场的操作人员照着操作手册就能完成大部分日常保养，省下来的时间全都变成了实实在在的产量提升。

让矿方印象很深的不只是设备本身的质量，还有后续的配套服务。黎明重工的技术人员不只是在设备安装调试的时候到场指导，帮着现场的工人把操作要点摸透，后续还会定期到矿区回访，跟进设备的运行状态，提前提醒易损件的磨损情况，帮着矿上把维护计划安排得明明白白，不用等出了故障再临时抢修。矿上的负责人说，之前也用过不少不同品牌的破碎设备，这次合作最踏实的地方，就是从设备选型到后续长期运行，每一步都有人跟进，不用自己摸着石头过河。

很多人选破碎设备的时候只盯着纸面参数看，忽略了设备和实际工况的匹配度，最后买回来才发现效率上不去，隐性成本越积越高。这个锰矿技改项目最实在的地方，就是没有追求花里胡哨的概念，而是选了一台真正适配锰矿石特性、能扛住长时间连续运转的设备，用稳定的运行、均匀的成品和省心的服务，给整条生产线带来了实打实的提升。对于矿山生产来说，好的产品从来不是参数表上的漂亮数字，而是长年累月在现场运转时，每一次出料的稳定，每一次少停的机，每一次不用费心去处理的小故障，这些细节加起来，就是品牌最实在的价值。

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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：