磨矿细度

针对郑州氧化铝二厂生产能力低、磨矿细度不够及钢耗偏高等问题对细磨磨矿机介质进行优化研究。

In view of low production capacity , poor grind fineness and high ball consumption , media optimization in atomizer mill was studied in Aluminum Oxide No.2 Factory .

通过对矿石进行磨矿动力学分析，确定了磨矿细度：利用小型浮选机进行反浮选实验，确定了最佳药剂制度。

Through the kinetic analysis of the grinding process , the grind fineness had be determined ; the reverse flotation experiment of the ore had be carried out with small-size flotation cell , and the optimal reagent system had be determined .

针对矿石性质研究了磨矿细度、矿浆pH值、浮选药剂制度等条件对选金回收率的影响。

According to the properties of the gold ore , the influence of abrasive grain , pH of ore slurry and flotation reagent system on recovery rate of gold is emphatically studied .

通过工艺矿物学研究和浮选脱泥试验研究，考察了磨矿细度、起泡剂的种类、pH值和浮选时间对浮选脱泥的影响，通过浮选确定了最佳浮选脱泥条件，并探讨了其原理。

Through technological mineralogy study and flotation desliming test , the effect of grinding fineness , frother types , pH value and flotation time on the desliming were investigated . Optimal flotation desliming conditions were determined and the principles studies .

试验结果表明：提高矿样的磨矿细度和浸出液中氰化钠的浓度以及加入SDM助浸剂，均可提高金的氰化浸出率。

The results showed that gold recoveries could be increased by fine grinding of concentrates , raising concentration of sodium cyanide in leaching solution and adding the regent SDM .

在试样磨矿细度为-400目含量大于95%、浸出液中氰化钠的质量分数为05%条件下，加入一定量的SDM助浸剂（10kg/t），可提高金的氰化浸出率1%～2%。

The gold recovery could be increase by 1 % ~ 2 % under over 95 % minus 400 mesh concentrates , 0.5 % of sodium cyanide concentration and adding a certain SDM ( 10kg per ton concentrate ) .

定量法确定磨矿细度的研究与实践

Practice and Study on the quantitative method of defining grinding fineness

用解离分析方法确定磨矿细度及预测选别指标

Determining Grinding Fineness and Predicting Dressing Index by Liberating Analysis Method

考查了磁场强度、磨矿细度对铁分选指标的影响。

The effects of magnetic field intensity and grinding granularity on magnetic separation index of Fe were investigated .

合理控制第一段和第二段磨矿细度是提高精矿质量的先决条件。

The key of improving quality of concentrate is to reasonably control the first and secondary grinding fineness .

试验结果表明，焙烧温度、磨矿细度对提铁脱磷影响较大。

The results show that roasting temperature and grinding fineness have an obvious effect on iron increase and phosphorous reduction .

考察了煅烧温度、磨矿细度、矿石质量以及煅烧方法等因素对产品白度的影响；

The effect of calcination temperature , grinding fineness , ore quality and calcination method on the product whiteness is investigated .

凉山矿业股份有限公司铜作为主要金属产品，钼作为伴生金属产品回收，不断对工艺流程、磨矿细度、药剂条件进行优化研究，生产工艺趋于成熟。

Copper concentrate is the main product of Liangshan Mining Industry Company and the molybdenum concentrate is recovered as by - product .

考察了焙烧温度、焙烧时间、磨矿细度、添加剂种类和用量，二氧化硫浓度等条件对矿石中有价元素锰、钴和镍浸出率的影响。

The influence of temperature , reaction time , fineness of the ore , addition , concentration of sulfur dioxide in the gas mixture , etc.

浮选进行了药剂种类的影响、磨矿细度影响、捕收剂用量影响、精选条件等的试验。

The flotation process has carried on the medicament type influence 、 rubbing degree of fineness influence 、 collector amount used influence 、 selection condition and so on experiment .

随着磨矿细度增加，铁品位先降低后增加，回收率先增加后降低，磷含量逐渐降低；

With grinding fineness increasing , iron grade was first decreasing and then increasing , while iron recovery was first increasing and then decreasing and phosphorus content was reducing gradually .

在经过正交试验及磨矿细度和矿浆浓度等调优试验后，得到品位为95.15%的高碳石墨及品位为90%的中碳石墨，选矿回收率达到92.84%。

The result with improvement in the grade of concentrate to 95.15 % and 90 % through the routine floatation method was achieved . The flotation recovery rate reaches to 92.84 % .

某铜矿通过对浮选工艺的技术改造：采取提高磨矿细度、增加二次精选及采用高效药剂等措施，使选矿技术指标得到了显著提高。

They adopted a few measures such as improving fineness of grinding ores , increasing secondary cleaning , using additional typed reagent and so on , thus making the technical indexes raised markedly .

氰化浸出吸附试验，对磨矿细度、浸出时间、浸出浓度、氰化钠用量、石灰用量等做了研究。

Cyaniding leaching adsorption experiment , to rubbing degree of fineness 、 leaching time 、 leaching density 、 cyanide sodium amount used 、 the lime amount used and so on has done the research .

研究板状大洋富钴结壳浮选工艺，考查捕收剂、辅助捕收剂、起泡剂、调整剂、分散剂和磨矿细度对浮选过程的影响。

The flotation technology of board cobalt-rich crust from the Pacific Ocean is investigated , and the effects of collector , assistant collector , frother , regulator and dispersant on the floatation process are tested .

本文确定的最佳磨矿细度为0.074mm含量75.00%，通过单因素试验和正交试验确定了捕收剂、调整剂、消泡剂和抑制剂的最佳用量。

Grinding experiment indicated that the best mesh-of-grind was 75 % under the order of 200 , The best dosage of collector , depressing agent and conditioning agent were decided with single factor and orthogonal experiments .

分析了岩金矿山在磨矿细度、浸出效果、吸附指标方面存在的问题，提出了相应的解决对策，得出了可供类似金矿借鉴的结论。

Analysed some questions about fields of grinding grain , immersion resultant , absorption target in Rock Gold Mine , Proffered countermeasures of solving concerned , and came to conclusion be reference to similarity gold mine .

对浮选机进行了浮选硫铁矿的参数试验，包括气泡发生器的表观充气速率、中矿提升管的充气压强、磨矿细度、矿浆浓度、矿浆流量、刮板速度等。

Made the test parameters of pyrite used the flotation machine , including apparent inflation rate of bubble generator , the inflatable pressure of tailings ascend tube , grinding fineness , pulp concentration , pulp flow and scraper speed .

一水硬铝石的嵌布特性，决定了磨矿的细度。

The dissemination characteristic of diaspore determined the grinding granularity .

阐述了为达到通过磨矿产品细度稳定产品质量的目的，进行的降低磨矿介质尺寸改善磨矿分级效果的工业试验。

In order to stabilize product quality through control of grinding fineness , tests of reducing size of grinding balls are done for the goal of improving grinding & classifying performance .

使用TW－10－A塔式磨浸机，成功地提高了振安金矿的二段磨矿细度，并提高了金的浸出率，经济效益显著。

Making use a leaching pulverizing tower mill as a secondary fine grinding machine in a gold plant , the gold leaching rate by cyanide is enhanced .

通过对磨矿流程进行局部改造，调整工艺参数，实现了磨矿细度的大幅提高和金浮选回收率的提高。

By some modifications of the milling flowsheet and adjustment of the processing parameters , milling size and flotation recovery were dramatically improved .