Study on Reasonable Cut-off Grade for Ore Drawing in Sublevel Caving Method;
无底柱分段崩落法合理放矿截止品位的研究
After analyzing the movement law of ore drawing body,the basic parameters of sublevel mine in a gold mine are calculated by the experiment result of single model and surface model in a lab.
介绍了无底柱分段崩落法放矿基本原理,利用室内单体模型和平面模型的放矿试验,分析了放矿体的流动规律,并据此确定了某金矿无底柱分段崩落法的基本结构参数。
An analysis of a few applications of movable probability field in simulated computer ore drawing is conducted, and the mistakes of adopting movable probability field in computer simulation are pointed out and theoretically proved.
对移动概率场在计算机模拟放矿中的几种应用方式进行了深入地分析,阐述了采用移动概率场的原地移动概率进行计算机模拟的错误,并从理论上做出了证明;也证实了采用取空位上9个单元并取第一层的移动概率进行计算机模拟的正确性。
By adopting the method of current order drawing ore balance between income and expenditure and utilizing the Xiaoguanzhuang iron mine economic index of 2002, the paper has respective calculated the economic and rational drawing cutoff grade of Xiaoguanzhuang iron mine and Luzhong metallurgic mine corporation from variant angles.
本文采用当次放出矿石收支平衡方法,利用小官庄矿2002年经济指标,从立足于小官庄矿和矿山公司两个角度,分别计算了小官庄矿经济合理的放矿截止品位。
The computer simulation of drawing process is described based on analysis of flowing characteristics of heterogeneous loose body in drawing process.
分析非均匀矿岩散体在放矿过程中的流动特点 ,提出非均匀矿岩散体计算机模拟放矿过程的思路。
As a result,verified by operation practice,it shows that exerting cut off grade drawing system is reasonable.
对梅山铁矿采用不同结构参数过渡的损失、贫化问题进行了研究 ,研究结果表明 :现行的截止品位放矿制度是合理的 ,并在生产实践中得到了验证。
Verification of the drawing theory in the random medium;
随机介质放矿理论的检验
Verifying criteria and its contents about drawing theory of continuum;
连续介质放矿理论的检验准则及内容
An evaluation is made of quasi-elliptic drawing theory, and acceleration equations are given for the first time.
对类椭球体放矿理论速度场进行了评价 ,并首次给出了加速度方程 ;根据试验研究提出了放出体表面方程、移动迹线方程、移动过渡方程 ,建立了类椭球体放矿理论的理想方程 ,在此基础上根据实际观察和理论提出了实际散体的速度方程和密度方程 ,建立了类椭球体放矿理论的实际方程。
The paper introduces briefly features and functions of SLS system and analyses the classification of ore drawing modes,and has studied the selection of ore drawing modes based on SLS system and got some important conclusions,whichi provides valueable foundations of Decesision-making for mining technician.
本文概述了SLS系统功能用途和分析了无底柱分段崩落法放矿方式分类,并基于SLS系统对无底柱分段崩落法放矿方式选择进行研究,得到了一些重要的结论,可为采矿工作者提供决策的依据。
This paper introduces the ore drawing process with the natural caving method and the characteristics of each stage, expounds the flow of the ore drawing management with the natural caving method, and probes into some measures that should be adopted in the special condition to reduce the interfusion of waste rock.
介绍了自然崩落法的放矿过程及各阶段的特点,阐述了自然崩落法放矿管理流程,探讨了在特殊条件下应采取的特殊措施,以减少废石的混入。
The performance of orepasses has direct influence on the operational efficiency of a mine as a whole and its economic results.
放矿溜井放矿能力的好坏,直接影响着整个矿山的生产效率及经济效益。