一、项目建设背景

河南郑州某预拌砂浆生产企业2017年10月在新密市曲梁镇建成的这条石灰石制砂生产线，采用黎明重工VU120塔楼式制砂系统，具有典型的现代化制砂项目特征：

    原料特性：处理外购石灰石原料，莫氏硬度3-4级
    产品定位：更好预拌砂浆用砂，符合GB/T 14684-2022标准
    建设理念：采用"集约化、智能化、环保化"设计思路

二、VU120核心系统解析
1. 模块化集成设计
功能模块 技术特点 性能参数
制砂主机 复合破碎腔设计 出料针片状含量<8%
模控筛 多级振动筛+气流筛 可调细度模数2.3-3.1
粒优机 涡流空气分选 石粉控制精度±1%
加湿系统 雾化喷淋+搅拌 含水率控制3-5%
2. 环保节能技术

    粉尘治理：三级收尘系统（旋风+布袋+活性炭）
    节水设计：工艺水回用率>90%
    降噪措施：全封闭塔楼+吸音材料（≤65dB）

3. 智能化控制

配置PLC自动控制系统，实现：

    远程监控产量、能耗实时数据
    自动调节破碎机转速
    故障预警诊断

三、经济效益分析

    占地仅300㎡（传统方案需800㎡）
    建设周期45天

    成品优势：

    压碎值≤20%
    MB值≤1.0
    颗粒级配连续

四、应用场景扩展

该生产线技术方案可根据原料特性调整：

    原料扩展：

    花岗岩（调整耐磨件后）
    建筑固废（需预处理）
    矿山尾矿

    产品延伸：

    混凝土用机制砂
    沥青拌合料
    特种砂浆骨料

五、项目实景解析

    布局特点：

    垂直立体布局
    物料自流设计
    全封闭钢结构

    运行实况：

    日均产量2000-2500吨
    设备运转率≥85%

该生产线投入运行五年多来，已累计生产更好机制砂超过300万吨。

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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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