一、项目概况
江苏苏州某建材公司在沛县杨屯镇投资新建时产450吨石灰石破碎制砂生产线，采用世邦集团全套设备，主要产出0-5mm精品机制砂及5-20mm碎石骨料，更好企业自营搅拌站使用。

二、工艺流程设计

    原料预处理

    石灰石原料粒度≤800mm
    设计堆料能力20000吨

    三级破碎工艺
    ① 初级破碎：C6X125颚式破碎机

    处理能力450-500t/h
    排料口调整范围150-200mm

    制砂核心
    VSI6X1150冲击破碎机

    四口叶轮深腔型设计
    成品砂细度模数可调(2.4-3.0)
    成砂率≥45%
    设备运行功率315kW

三、质量控制体系

    级配控制

    5mm以下机制砂占比≥40%
    石粉含量可控(5-15%)

    粒形优化

    针片状含量≤8%
    压碎值≤20%

四、环保与智能配置

    环保措施

    全封闭钢结构厂房
    脉冲除尘系统(排放≤15mg/m³)
    水循环利用系统

    智能化

    更好控制系统
    设备运行状态在线监测
    产能自动统计功能

五、经济效益

    投资概算

    设备总投资约850万元
    土建配套约300万元

    运营成本

    吨生产成本较外购低18-22元
    预计投资回收期2.5年

    年产出

    机制砂：80万吨
    碎石骨料：70万吨

六、项目优势

    实现原料自给自足，确保搅拌站生产稳定性
    产品质量可控，提升混凝土性能
    降低综合生产成本，增强市场竞争力
    环保达标，符合绿色矿山建设要求

备注：本方案采用的好的VSI制砂设备，在保证产能的同时可灵活调整成品砂级配，满足不同标号混凝土的生产需求。

 

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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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