矿石贫化率取决于放矿参数。
The ore dilution rate depends on the ore drawing parameters.
振动放矿技术正在我国许多矿山推广。
The vibrating ore drawing technique is being popularized presently in many mines in our country.
它可以解决各种边界条件下的放矿问题。
It can solve ore-drawing problems with various boundary conditions.
本文还应用了所研究结果，解释了一些放矿问题。
This paper has applied the above results and explained some drawing problems.
自然崩落法放矿基本上都是在覆盖岩层下进行的。
The process of ore- drawing in block caving is completed under overburden.
该系统适合于大规模、高阶段矿块崩落法放矿生产管理。
The system is suitable for ore-drawing management of high level and large drawing area of block caving system.
随机介质理论可以很好地反映崩落法放矿的矿岩移动规律。
The stochastic medium theory of ore-drawing can properly reflect the movements of ore and rock masses for caving system.
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。
Taking Jingtieshan Mine as an example, the peper deals with several problems with applying non-dilution ore drawing mw thod.
检验结果表明，只有类椭球体放矿理论能全部通过连续流动检验。
The result shows that only the similar ellipsoid drawing theory can pass all the verification.
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.
为此，研究了端部放矿过程中多方废石混入贫化损失的形成机理。
Therefore, the mechanism of dilution and loss formation in a side drawing process involving wastes coming from various directions is studied.
据此计算了截止放矿时的矿岩比，为小官庄矿放矿提供了科学依据。
According to this cutoff grade, the paper has calculated the ratio of ore and rock while cutoff drawing that provide science foundation for the drawing of Xiaoguanzhuang iron mine.
这一理论的正确性在双质体调速式振动放矿机的试制中得到了证明。
The correctness of the theory has been verified in the testing of the dual mass vibrating feeder.
据此计算了截止放矿时的矿岩比，为小官庄矿放矿提供了科学依据。
According to this cutoff grade, the paper has calculated the ratio of ore and rock while cutoff drawing that provide science fo...
在获取矿石技术经济指标的基础上，对截止放矿品位进行了优选政策。
Based on the technical and economical index, an optimal decision for the cutoff grade of ore drawing is presented.
一旦发生放矿溜井堵塞，则严重影响矿山的正常生产，乃至于造成停产。
Once orepass block happens, the normal operation of the mine would be seriously influenced, even resulting in operation stop.
采用无底柱分段崩落采矿法，国内外一直采用截止品位放矿法来控制出矿。
Cut-off grade method has been used to control the ore drawing in non-pillar sublevel caving mining both in and outside China.
研究指出：在放矿过程中，将崩落矿岩接触带视为一理想界面是不正确的。
It shows that the contact face between ore and waste as a ideal interface is incorrect during drawing.
研究发现，在相同的放矿条件下，平面放矿方案比立面放矿方案更加合理。
The research found out that under the same ore-drawing conditions, the former was more reasonable than the latter.
实践证明，采场放出口矿岩散体速度分布和放出口尺寸对放矿结果有显著影响。
The practice shows that the flow velocity of bulk ore rock at the stope drawpoint and the dimensions of drawpoint have remarkable influence on the drawing effect.
认为下盘放矿点位置与矿体倾角、放矿截止品位、围岩含矿品位有着密切的关系。
It is concluded that location of foot-wall drawing points are closely related to orebody dip, cut-off grade and ore grade of wall rock.
用放矿计算机模拟再现采场放矿实际，与理想放矿管理条件下模拟结果加以比较。
The computer based drawing program was used to simulate and reproduce the real drawing cases in stope in order fo compare it with the simulation obtained under ideal control of drawing.
在综合分析了现场情况，根据散体流动规律及放矿学理论，提出了溜井改造技术方案。
Proposals for technical renovation of the raise were suggested based on a comprehensive analysis of the field situation and according to the bulk flow rule and ore draw theory.
该项成果进一步完善了放矿理论与应用体系，使矿山管理科学化向前迈进进了一大步。
This achievement has perfected the ore-drawing theory and application field and has advanced a significant step forwards t...
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。
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.
采场的顶柱作为永久矿柱损失，采场底柱、间柱等采场大量放矿完毕后，一次性进行回收。
The crown pillar of stope is permanent loss and not recoverable, while sill pillar and barrier pillar shall be recovered after the ore drawing work is completed.
本文就利用崩落矿石移动规律进行覆盖岩下放矿控制这一放矿理论的应用课题进行了探讨。
The paper approached the subject of the application of draw theory which utilizes the movement rule of caved rock to control ore-drawing under overlying rock.
溜放粘结性矿料时常会出现两类放矿障碍，一类是稳定粘结拱卡堵，另一类是形成管状流动。
There are two kinds of hindrances to cohesive ores during ore drawing. One of them is stable stick arch and the other rathole flow.
当不能一步到位地施行无贫化放矿时，可用低贫化放矿，逐渐提高截止品位而趋向无贫化放矿。
When dilutionless drawing cann't be executed in one step, low dilution drawing can be used and the cut-off grade can be gradually raised towards dilutionless drawing.
就研究的振动放矿转载站主要技术性能参数、转载站结构特点和工业试验取得的指标进行了论述。
The main technical performance data of the transfer station of vibrating ore drawing under research, its structural characteristics and the performances achieved in its industrial test are discussed.
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