An Open-Pit Multi-Stage Mine Production Scheduling Model for Drilling
The model could be exactly solved by commercial MIP optimiser (e.g., ILOG-CPLEX) for small-size instances in a reasonable time. The proposed approach has been applied to a case study based on the data collected from an iron ore mine site in Australian, for the purpose of maximising the productivity of short-term open-pit mine production process through …
Selection of the most proper drilling and blasting …
Drilling and blasting pattern; Sangan Iron Ore Mine; AHP; TOPSIS; PROMETHEE 1. Introduction Drilling and blasting play a vital role in mining pro-jects. The quality of the blasting operation and subse-quently, the adequate rock fragmentation are effective parameters that have a considerable effect on the mine productivity (Shi et al. 2012 ...
Open-Pit Mining | Method and Process | Epiroc US
The list of commodities is extensive, although the relative proportions mined underground and on the surface vary from mineral to mineral. Massive tonnages of hard coal and lignite are also produced from surface mines, although the terminology used – open cast or open cut, rather than open-pit – indicates that the technology and engineering concepts used are …
Spotlight on drilling and blasting in surface mines
The lectures on rock blasting included the topics of ground vibrations, air blasts, high-speed photography of blasts, blast design, controlled blasting techniques, rock fragmentation, and …
Rational parameters of drilling-and-blasting operations at mine …
The technology of drilling-and-blasting operations conducting in which emulsion explosives are used during mining of iron ores by means of the chamber mining methods, which allows decreasing the ...
BEST PRACTICES IN DRILL AND BLAST
Drill depths are accounted for more accurately, making it easier to assign the right amount of explosives in blasting. New GPS-enabled applications have improved strata recognition …
Selection of the most proper drilling and blasting …
Drilling and blasting pattern; Sangan Iron Ore Mine; AHP; TOPSIS; PROMETHEE 1. Introduction Drilling and blasting play a vital role in mining pro-jects. The quality of the blasting operation and ...
Drilling and blasting parameters in sublevel caving in Sheregesh mine
Eremenko et al. (2018) of the Russian Academy of Sciences determined the factors affecting the geomechanical state of the Sheregesh iron ore rock mass and discussed and determined the arrangement ...
Planning an Iron Ore Mine: From Exploration Data to Informed Mining
For banded iron formation-hosted deposits accurate boundary modelling is critical to ore-grade estimation. Key to estimation fidelity is the accurate separation of the different domains within the ...
Dynamic Drill and Blast to deploy rigs at iron ore, …
The services contract with PRG relates to the provision of drilling and blasting services at GWR Group Ltd's Wiluna West iron ore project, where PRG is also a contractor. It will see DDB provide services from November for …
7 Environmental Impacts of Iron Ore Mining
Steel production uses over 98% of the iron ore available on the global market. Iron ore is a significant material that is used to extract metallic iron. Due to the increasing demand for metals, mining, and processing must be done continuously, producing a lot of liquid and solid waste. Massive amounts of tailings containing dangerous elements, including Fe, Mn, Cu, Pb, Co, Cr, …
Design of controlled blasting (pre-splitting) in Golegohar iron ore …
Table 3 Specifications of test no. 1 66 Test location Southern wall of mine , working bench 11, blasting pattern no. 168 Materials Spacing of joints and cracks Location of nearby faults Status of underground water Iron ore and waste rocks Minimum 0.1 and maximum 1.5 m 8 m behind the pre-split row Average water height of 4 measured holes ...
Application of Measurement While Drilling Data for …
Application of Measurement While Drilling Data for Mine Blast Optimization Utilizing Machine Learning Techniques with Iron Ore Mine Data Joshua Ryan Arnold Abstract Drilling and blasting procedures are a critical part of mine planning activities and improvements in this stage can lead to better productivity downstream and lower costs. One
A system-wide approach to minimize the operational cost of …
The production cycle of open-cast coal mines generally includes drilling, blasting, loading, hauling and coal preparation activities. Individual optimization of these activities does not mean that the whole system is optimized. This paper proposes a cost model considering all activities in mining cycle and system-wide approach to minimize the total mining cost of bench …
Drilling & Blasting
Drilling and Blasting are probably two of the more attention-grabbing words used in all of mining. After "Exploration and Development," nothing else describes what's happening more clearly than the combination of …
AN ANALYSIS OF THE EFFECTS OF VARIOUS BLASTING …
drilling and blasting of taconite ore in place and is fol lowed by several stages each of crushing and grinding. This thesis deals with the drilling and blasting functions of open pit taconite …
Reducing Drill and Blast Cost through Blast Optimisation
The estimated total drill and blast cost savings if the proposed blast parameters were adopted ranged from 5.3 to 12.2 % for ore zones and 2.9 to 14.8 % for waste zones. Total Cost per BCM of ...
Determination of drilling and blasting parameters …
In mining iron ore, over 60% of underground mines at Kryvyi Rih iron ore basin apply a system with the bulk caving of ore and overlying rocks.
Jr. Supervisor Drill And Blast Engineer
Mine Engineer | Drill & Blast Engineer | KJL II Certified | KIM | POP Certified · Saya merupakan seorang lulusan S1 Teknik Pertambangan, yang memiliki pengalaman dibidang Mine Engineer, Drill and Blast Engineer, Surveyor, dan Tunnel Engineer. saya sangat termotivasi untuk terus belajar akan pengetahuan-pengetahuan yang baru khususnya di dunia Pertambangan. …
AN ANALYSIS OF THE EFFECTS OF VARIOUS BLASTING …
drilling and blasting of taconite ore in place and is fol lowed by several stages each of crushing and grinding. This thesis deals with the drilling and blasting functions of open pit taconite mining. Blasting at Mesabi Iron Range taconite mines involves the use of water gel explosives and blasting agents and
Iron Ore Processing, General
Once the taconite rock is exposed, large drilling rigs drill blast holes 16 ″ in diam - eter by 40′ deep, in some cases. Nearly 400 of these holes are drilled in a blast pat-tern. Before the blast, the holes are lled with a special mixture of blasting agents. ... iron ore mining because they are either labor-intensive or costly.
An Evaluation on the Impact of Ore Fragmented by Blasting on Mining
In open-pit mines, the blast operation should be effectively optimized, leading to minimization of production costs through the application of specific technical specifications. However, there is inadequate information in the literature to link blasting to comminution stages. To this end, the effective parameters for the performance of mining unit operations were …
Regression Models of the Impact of Rockmass and Blast …
tivity and blasting cost in rockmass and blast design conditions similar to those of the iron ore surface mines examined in this study. However, the regression models obtained here could not be ...
(PDF) Method for calculation of drilling-and-blasting …
Acta Montanistica Slovaca:, 2023. Mathematical modelling of rock mass breaking using blasting has been applied to obtain formulas for the calculation of crush zone radii, intensive fragmentation, and crack formation around the charging cavity in the structure, diameter of the charging cavity, diameter of the charge itself, detonation characteristics of an explosive, …
Optimized design of drilling and blasting operations in open …
Drilling and blasting are the two most significant operations in open pit mines that play a crucial role in downstream stages. While previous research has focused on optimizing …
(PDF) CALCULATION OF DRILLING AND BLASTING PARAMETERS FOR …
Mining activities includes blasting, drilling, ... As previous study it is Hematite type of iron ore mine, thus the rock hardness is much and contain s more than 90% of Fe 2 O 3, mostly origin is ...
Blasting parameters of the Gol-E-Gohar iron ore mine
Back break is an undesirable phenomenon in blasting operations. It can cause instability of mine walls, falling down of machinery, improper fragmentation, reduced efficiency of drilling, etc.
Drilling Techniques and Drill Holes Logging | SpringerLink
At this iron ore mine the Al 2 O 3 is a metallurgically deleterious component therefore it is important to accurately estimate its content in the ore. During the project review it was noticed that Al 2 O 3 assays of the drill core samples collected in year 2000 were significantly lower than Al 2 O 3 values obtained at the other years (Fig. 4.7).
Kolomela Iron Ore Mine, Northern Cape
The mine produces direct shipping iron ore. The mine is operated by the Anglo American group company Kumba Iron Ore through its subsidiary Sishen Iron Ore Company (SIOC). SIOC is 76.3% owned by Kumba while the remaining interest is held by Black Economic Empowerment (BEE) shareholders.
Iron Ore Mine Reconciliation—A Case Study From Sishen Iron Ore Mine
In 2003 the Sishen Iron Ore Mine in South Africa broke this cycle by implementing Snowden's Reconcilor software. The implementation of a dedicated reconciliation system required a number of ...