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新疆有色鋰礦石破碎選礦項(xiàng)目，新疆和田金屬礦項(xiàng)目

新疆有色鋰礦石破碎選礦項(xiàng)目位于新疆和田市和田縣，主要鋰礦石為鋰輝石、鋰云母，脈石礦物為石英和長(zhǎng)石，為了降低0-6mm成品中，0.5mm以下物料占比，
并綜合后續(xù)選礦工藝要求，黎明重工更多使用沖擊式破碎機(jī)代替高壓輥磨機(jī)方案，代客戶做來料加工試驗(yàn)結(jié)果表明，沖擊式破碎機(jī)比高壓輥磨機(jī)破碎產(chǎn)生的0.5mm以下產(chǎn)品含量降低43%左右。最終0.5-6mm成品進(jìn)行兩段重介質(zhì)選礦，得到精礦、中礦及尾礦三種產(chǎn)品。

2025年2月，該項(xiàng)目投料試車成功，好的批合格鋰精礦品位達(dá)到5.0%，該項(xiàng)目采用了好的的重介質(zhì)選礦工藝，選礦成本降低約40%，每年將能產(chǎn)出60萬噸鋰精礦。

設(shè)備用途：用于超細(xì)碎，為重介質(zhì)選礦提供合格粒度的原料。
礦石性質(zhì)：屬于花崗偉晶巖類鋰礦石，主要鋰礦石為鋰礦石、鋰云母，其中鋰輝石含量約21.6%，鋰云母含量約4.98%；主要脈石礦物為石英和長(zhǎng)石，其中石英含量約28.26%，長(zhǎng)石含量約43.09%，礦石密度：2.62t/m³。
破碎工藝：采用四段二閉路工藝流程，其中粗碎設(shè)在采場(chǎng)，礦石粗碎后轉(zhuǎn)運(yùn)至選礦廠粗礦倉，進(jìn)行中碎、細(xì)碎和超細(xì)碎，中碎采用圓錐破碎機(jī)，超細(xì)碎采用沖擊式破碎機(jī)。最終產(chǎn)品為-6mm（其中-0.5mm含量盡可能少）。原則工藝流程見圖1.
立軸沖擊破設(shè)計(jì)通過量：2403t/h（破碎系統(tǒng)新給料量為890t/h，沖擊破最大循環(huán)負(fù)荷約為270%）。
給料方式：立軸沖擊破采用皮帶給料機(jī)給料，給料粒度（6-30）mm。

產(chǎn)品要求：最終破碎產(chǎn)品粒度-6mm，且產(chǎn)品中-0.5mm粒度含量盡可能少。
考慮到?jīng)_擊破的檢修強(qiáng)度，需要考慮一定的備用率，建議備用率≥30%。
安裝地點(diǎn)：該項(xiàng)目選礦廠的中細(xì)碎廠房室內(nèi)（地面海拔4602m），正常工業(yè)采暖，礦區(qū)地形陡峻。

該項(xiàng)目和田縣管轄，位于和田縣城，地勢(shì)總體南高北低，海拔多在4500m以上，最高海拔6260m，最低海拔4481m，相對(duì)高差300m～1200m。項(xiàng)目屬于鋰鈹稀有多金屬礦，含鋰礦物以鋰輝石為主，其次為含鋰白云母，鉭鈮礦物主要是鉭鈮鐵礦。

新疆有色鋰礦石破碎選礦項(xiàng)目客戶加工鋰礦石（主要成分之一為鋰云母），傳統(tǒng)方案在超細(xì)碎階段一般采用高壓輥磨機(jī)，而高壓輥磨機(jī)0-0.5mm含量非常高，非常不利于鋰云母的重選。因此，客戶希望尋求其他替代方案，以減少鋰云母破碎產(chǎn)品中-0.5mm粒度含量。

礦石性質(zhì)：屬于花崗偉晶巖類鋰礦石，主要鋰礦物為鋰輝石、鋰云母，其中鋰輝石含量約21.6% 鋰云母含量約4.98%;主要脈石礦物為石英和長(zhǎng)石，其中石英含量約28.26%,長(zhǎng)石含量約43.09%。礦石密度： 2.62t/m³。

立軸沖擊破給料皮帶的處理能力為0-700t/h(已考慮1.1的波動(dòng)系數(shù))。

工藝流程
原礦經(jīng)三段一閉路破碎及立軸沖擊破超細(xì)碎篩分后產(chǎn)品粒度為-6mm，原礦經(jīng)濕篩分級(jí)后，0.5-6mm進(jìn)行兩段重介質(zhì)選礦，得到精礦、中礦及尾礦三種產(chǎn)品，中礦經(jīng)膠帶給入磨機(jī)；-0.5mm經(jīng)濃縮后泵送至磨礦排礦池，磨機(jī)排礦與旋流器形成閉路。系統(tǒng)新給料量:294.7t/h（含波動(dòng)系數(shù)1.1），其中中礦比例約為73.6%，-0.5mm比例約為26.4%。

 

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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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