冲击式破碎机在锂矿石细碎应用场景:新疆有色锂矿石破碎选矿项目

新疆有色锂矿石破碎选矿项目位于新疆和田市和田县，主要锂矿石为锂辉石、锂云母，脉石矿物为石英和长石，为了降低0-6mm成品中，0.5mm以下物料占比，
并综合后续选矿工艺要求，黎明重工更多使用冲击式破碎机代替高压辊磨机方案，代客户做来料加工试验结果表明，冲击式破碎机比高压辊磨机破碎产生的0.5mm以下产品含量降低43%左右。最终0.5-6mm成品进行两段重介质选矿，得到精矿、中矿及尾矿三种产品。

 

新疆有色锂矿石破碎选矿项目客户加工锂矿石（主要成分之一为锂云母），传统方案在超细碎阶段一般采用高压辊磨机，而高压辊磨机0-0.5mm含量非常高，非常不利于锂云母的重选。因此，客户希望寻求其他替代方案，以减少锂云母破碎产品中-0.5mm粒度含量。

接到客户要求后，世邦综合业主的生产需求、特殊的物料属性以及后续选矿工艺要求，更多使用冲击式破碎机代替高压辊磨机，并为客户代为做来料加工试验。最终实验数据表明，冲击破比高压辊磨机破碎产生的-0.5mm产品含量降低43%左右，采用世邦冲击式破碎机代替高压辊磨机效果远远超出预期，客户对该技改工艺方案和世邦专业的服务非常满意。

2025年2月，该项目投料试车成功，好的批合格锂精矿品位达到5.0%，该项目采用了好的的重介质选矿工艺，选矿成本降低约40%，每年将能产出60万吨锂精矿。

设备用途：用于超细碎，为重介质选矿提供合格粒度的原料。
矿石性质：属于花岗伟晶岩类锂矿石，主要锂矿石为锂矿石、锂云母，其中锂辉石含量约21.6%，锂云母含量约4.98%；主要脉石矿物为石英和长石，其中石英含量约28.26%，长石含量约43.09%，矿石密度：2.62t/m³。
破碎工艺：采用四段二闭路工艺流程，其中粗碎设在采场，矿石粗碎后转运至选矿厂粗矿仓，进行中碎、细碎和超细碎，中碎采用圆锥破碎机，超细碎采用冲击式破碎机。最终产品为-6mm（其中-0.5mm含量尽可能少）。原则工艺流程见图1.
立轴冲击破设计通过量：2403t/h（破碎系统新给料量为890t/h，冲击破最大循环负荷约为270%）。
给料方式：立轴冲击破采用皮带给料机给料，给料粒度（6-30）mm。
产品要求：最终破碎产品粒度-6mm，且产品中-0.5mm粒度含量尽可能少。
考虑到冲击破的检修强度，需要考虑一定的备用率，建议备用率≥30%。
安装地点：该项目选矿厂的中细碎厂房室内（地面海拔4602m），正常工业采暖，矿区地形陡峻。

该项目和田县管辖，位于和田县城，地势总体南高北低，海拔多在4500m以上，最高海拔6260m，最低海拔4481m，相对高差300m～1200m。项目属于锂铍稀有多金属矿，含锂矿物以锂辉石为主，其次为含锂白云母，钽铌矿物主要是钽铌铁矿。

矿石性质：属于花岗伟晶岩类锂矿石，主要锂矿物为锂辉石、锂云母，其中锂辉石含量约21.6% 锂云母含量约4.98%;主要脉石矿物为石英和长石，其中石英含量约28.26%,长石含量约43.09%。矿石密度： 2.62t/m³。

立轴冲击破给料皮带的处理能力为0-700t/h(已考虑1.1的波动系数)。

工艺流程
原矿经三段一闭路破碎及立轴冲击破超细碎筛分后产品粒度为-6mm，原矿经湿筛分级后，0.5-6mm进行两段重介质选矿，得到精矿、中矿及尾矿三种产品，中矿经胶带给入磨机；-0.5mm经浓缩后泵送至磨矿排矿池，磨机排矿与旋流器形成闭路。系统新给料量:294.7t/h（含波动系数1.1），其中中矿比例约为73.6%，-0.5mm比例约为26.4%。

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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