The ore dilution rate depends on the ore drawing parameters.
矿石贫化率取决于放矿参数。
This method can improve the ore extraction rate and reduce the ore dilution rate and has been found to be a rational mining method for the mine.
该方法提高了矿石的回采率，降低了矿石的贫化率，为矿山寻找出一条合理的开采方法。
Research shows that main cause of ore dilution in sublevel caving mining is tlnrational cut-off grade drawing. Non-dilution ore drawing is most ideal drawing mede.
研究表明，造成无底柱分段崩落法来出矿石贫比大的根本原因在于采用了不合理的截止品位放矿方式，无贫化放矿是无底柱分段崩落法最为理想的放矿方式。
This paper set up controller for ore mining loss and ore dilution and put forward analytical and controllable methods by using the matter element analytical theory.
应用物元分析理论，建立了采矿损失、矿石贫化控制器，提出了分析和控制方法。
High dilution for sublevel caving is caused by existing drawing mode. Using thd undilutiondrawing can greatly decrease the ore dilution below 8% without decreasing recovery.
无底柱分段崩落法贫化大是由现行放矿方式造成的，改用不贫化放矿后可使矿石贫化率在回采率不降低情况下大幅度下降到8％以下。
The results were that the ore dilution and loss were decreased, the recovery was increased, the cost of mining was reduced, and good economic and social results were obtained.
降低了矿石的贫化损失，提高了回收率，减少了采矿成本，获得了良好的经济效益和社会效益。
The analysis of the main causes for the ore dilution in Chengchao Iron Mine has shown that the stope structure parameters are an important factor influencing the dilution index.
分析了程潮铁矿贫化产生的主要原因，指出采场结构参数是影响贫化率指标的一个重要因素。
In the mining system which conveys ore by blasting force, the ratio of mined tonnage to development is low and the ore dilution and loss are less, leading to good cost effectiveness.
爆力运矿采矿法具有采切比小、矿石损失贫化少、 经济效益好等优点。
In recent years, through strengthening management in decreasing ore dilution rate, increasing the head grade and increasing recovery rate in Fengshan Copper Mine, good economic benefit is obtained.
近几年来，丰山铜矿加强管理，降低采矿贫化率，提高入选原矿品位，提高选矿回收率，实现了年增上千万元的经济效益。
Cemented fill is widely used in big mines all over the country to enhance ore recovery and reduce dilution.
为提高矿石回收率，降低贫化率，目前胶结充填工艺在我国各大矿山得到了广泛的应用。
In the mining area of Dragon Head Mine, the faulted structure is extremely well-developed with a crisscross of faults, thus resulting in a certain ore loss and dilution in mining operation.
龙首矿矿区内断裂构造极其发育，断层纵横交错，因而在采矿作业中，存在着一定的矿石损失和贫化。
Population and application of the dilution ratio ore drawing method has certain social value and economic value for implementation of the sill pillar-free subdrifting method.
低贫化放矿的推广应用对于实行无底分段崩落法的矿山具有一定的社会价值和经济价值。
The paper explicates the importance of reducing loss and dilution of ore in underground mining operation, and introduces some measures for reducing loss and dilution of ore in mining underground.
阐述了降低采矿中矿石损失与贫化的重要意义，并介绍了降低井下采矿损失与贫化的几项措施。
The study provides a new method for reducing the loss and dilution of ore.
这项研究为降低损失贫化提供了新的途径。
A series of formulas for calculating ore loss and dilution on the condition of the single hopper opening are given based on the expectation body principle of drawing ore.
本文根据放出期望体理论导出了一整套单漏口条件下计算损失贫化的公式。
From production practice of the mine, it is expounded that the decrease of dilution factor in mining is one of effective methods to improve the ore quality (grade) and economic benefits.
从生产实践出发，阐述了降低采矿贫化率是提高矿石质量(品位)，提高矿山经济效益的有效途径之一。
Disadvantages of sublevel caving without sill pillar lie in high ore loss and dilution as well as difficult control of ore loss and dilution.
无底柱分段崩落采矿法存在损失贫化大和损失贫化难以控制的缺点。
Compared with other production section, south section ore scale, shape and occurrence are different, and it is difficult to control mining dilution rate in this section.
狮岭南地段矿体规模、形态、产状特征与其他主生产地段相比，差异很大，该地段采矿贫化率较难控制。
The author presented some ways to reduce ore loss and dilution in mining operation on the basis of analyzing the causes of ore loss and dilution.
作者在分析引起贫化、损失原因的基础上，阐述了降低贫化损失的办法。
Finally the comprehensive analysis method for the ore loss and dilution is proposed.
最后提出矿石损失贫化综合分析方法。
Taking Jingtieshan Mine as an example, the peper deals with several problems with applying non-dilution ore drawing mw thod.
以镜铁山矿为例研究了无贫化放矿方式在矿山应用的若干问题。
This paper discusses the law of the ore drawing about Sublevel Caving Mining, and analyzes the reasons for the dilution and loss.
探讨了无底柱分段崩落法放矿规律，分析了造成损失贫化的原因。
This paper discusses the law of the ore drawing about Sublevel Caving Mining, and analyzes the reasons for the dilution and loss.
探讨了无底柱分段崩落法放矿规律，分析了造成损失贫化的原因。
应用推荐