硅质岩制砂生产线,江西九江制砂设备这是江西九江一个典型的硅质岩湿法制砂EPC总包项目，硅质岩详细介绍

硅质岩是一种以二氧化硅（SiO₂）为主要成分的沉积岩，主要由石英颗粒和硅质胶结物组成，其SiO₂含量通常超过80%，部分更好硅质岩可达95%以上。其形成方式包括化学沉积、生物沉积（如硅藻土、硅质海绵岩）或火山物质蚀变（如碧玉岩、燧石）。
硅质岩的主要类型

    石英砂岩（最常见）：
        由石英颗粒（粒径0.0625~2mm）经硅质胶结形成，硬度高（莫氏硬度7）。
        适用于高标准建筑骨料、玻璃原料、耐火材料等。
    燧石（隐晶质硅质岩）：
        质地致密，多为黑色或灰白色，贝壳状断口，常见于石灰岩层中。
        可加工成高品质机制砂或特种建材。
    碧玉岩（含铁等杂质）：
        色彩丰富（红、绿、黄等），SiO₂含量极高，常用于工艺品或高耐磨材料。
    硅藻土（生物成因）：
        疏松多孔，吸附性强，多见于湖相沉积，多用于过滤、环保材料。

九江湖口县硅质岩特点（本项目）

    矿物组成：以石英为主（85%~95%），少量长石、黏土矿物（含泥15%~20%）。
    结构特征：中粗粒砂岩结构，硅质胶结致密，抗压强度高（100~300MPa）。
    加工难点：
        高硬度导致破碎能耗较大（需多缸圆锥破+VSI整形）。
        含泥量影响成品砂洁净度（湿法洗选可降至<3%）。

硅质岩在建材领域的应用

机制砂      建筑混凝土、路面基层 GB/T 14684-2022（含泥量≤3%）
碎石骨料   高铁、桥梁等高强混凝土 GB/T 14685-2022（针片状≤8%）
硅微粉    （超细加工） 好的混凝土掺合料、陶瓷釉料 细度≥325目

硅质岩破碎工艺对比（干法vs湿法）
干法制砂 投资低、无污水 粉尘大，含泥难控制 低含泥原料（<5%）
湿法制砂 成品洁净、无尘 需水处理系统，成本较高 高含泥（>10%）或严格环保要求

本项目采用湿法工艺的成功关键：

    多级洗选：圆振筛+轮式洗砂机去除黏土。
    细砂回收：旋流器+压滤机实现污泥干排（含水率<15%）。
    水循环：80%回收率，补水量仅20%（节能环保）。

九江项目通过优化硅质岩破碎-洗选流程，不仅提升了机制砂品质，更成为高含泥硅质岩绿色加工的示范案例。

 

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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