Resource modeling plays a crucial role in raw material quality management for cement manufacturing.Research has shown that geological uncertainty in resource modeling is inevitable and results in risk to future extrac...Resource modeling plays a crucial role in raw material quality management for cement manufacturing.Research has shown that geological uncertainty in resource modeling is inevitable and results in risk to future extraction planning and operations of the cement plant.This study aims to assess the geological uncertainty and associated risk in modeling a cement raw material deposit in southern Vietnam.For this deposit,soil,clay,laterite,and limestone are the four primary rock types,controlling the occurrence and spatial distribution of chemical grades.In this study,hierarchical simulation method was used to evaluate the uncertainty.Rock types were first simulated,and the chemical grades conditioning to the rock types were then generated.The results demonstrated the capability of the hierarchical simulation approach to incorporate the uncertainty of rock types in resource modeling and to allow evaluating the risks in providing the desired raw material for the cement plant in the form of grade-tonnage curves.展开更多
Cement is a kind of colloid material. This paper introduces a model of raw material proportion and quadratic programming for solving the model when three kinds of raw materials are mixed. The calculation of the raw ma...Cement is a kind of colloid material. This paper introduces a model of raw material proportion and quadratic programming for solving the model when three kinds of raw materials are mixed. The calculation of the raw material proportion is easy, and its result is reliable. This model is apt to be realized on micro-computer. This paper indicates the defects of the least square method and compares these two methods through existing instance.展开更多
文摘Resource modeling plays a crucial role in raw material quality management for cement manufacturing.Research has shown that geological uncertainty in resource modeling is inevitable and results in risk to future extraction planning and operations of the cement plant.This study aims to assess the geological uncertainty and associated risk in modeling a cement raw material deposit in southern Vietnam.For this deposit,soil,clay,laterite,and limestone are the four primary rock types,controlling the occurrence and spatial distribution of chemical grades.In this study,hierarchical simulation method was used to evaluate the uncertainty.Rock types were first simulated,and the chemical grades conditioning to the rock types were then generated.The results demonstrated the capability of the hierarchical simulation approach to incorporate the uncertainty of rock types in resource modeling and to allow evaluating the risks in providing the desired raw material for the cement plant in the form of grade-tonnage curves.
文摘Cement is a kind of colloid material. This paper introduces a model of raw material proportion and quadratic programming for solving the model when three kinds of raw materials are mixed. The calculation of the raw material proportion is easy, and its result is reliable. This model is apt to be realized on micro-computer. This paper indicates the defects of the least square method and compares these two methods through existing instance.
