Controlled blasting in a limestone mine using electronic
2017-1-25 Except for very deep-seated deposits, open cast mining method has been recognized as the safest and most productive mode for mining minerals. Ever growing demand in minerals and coal has compelled the mine operators to increase the size of mine, which has resulted in an increasing trend towards large capacity open cast projects. Explosives and blasting techniques play a significant role in
Selective limestone mining without drilling or blasting
2021-3-2 A member of the Eurocement Group, the mine ZAO Kavkazcement is located near the Black Sea in Russia and is one of the largest cement producers in the Northern Caucasus. In the selective mining of limestone, WIRTGEN surface miners guarantee constantly highly daily rates without drilling or
Limestone Extraction Without Drilling and Blasting Agg-Net
2021-8-20 Limestone Extraction Without Drilling and Blasting First published in the December 2018 issue of Quarry Management as Surface Mining Limestone extraction without drilling and blasting Wirtgen surface miners play a key role in increasing production and reducing costs for a large cement plant in western Ukraine PJSC Ivano-Frankivskcement (IFCEM), based in Yamnytsya, in western Ukraine, produce cement clinker and around 300 other cement
Limestone extraction underground mining techniques
2021-3-22 Limestone mining involves underground mining techniques that comprises of drilling, blasting. Great mining is mainly considered by mining companies product equipments like as Aluminum, copper, gold, mercury, etc. All mining suppliers promotional, banner
CONDUCTING THE CONTROLLED MASS BLASTING ON
2013-11-26 CONDUCTING THE CONTROLLED MASS BLASTING ON THE LIMESTONE MINE BREZA, BREZA, WITH USE THE ANFO EXPLOSIVES "RUDEX 1" Abstract ANFO explosives in most cases account for 90% of the total weight of explosives during the ex-ecution of mass mining in the mining facilities on the territory of Bosnia and Herzegovina. A large
Effects of Rock Mass Conditions and Blasting Standard on
2015-4-16 As, especially, the cracks in the rock mass are heavily developed at the limestone quarries in Japan, the joints and/or cracks in the rock mass have big impacts on the blasting effects such as the size of fragmented rocks. Therefore, if the joint system and/or crack density in the rock mass can be known and evaluated in quantity, the blasting operation can be done more effectively, efficiency and safety. However, the guideline for designing the appropriate blasting standard based on the rock mass
Collaborative blast optimisation in a limestone mine Quarry
2021-4-9 Boral’s Limestone Mine near Marulan in southern New South Wales is the source of limestone for up to 60 per cent of all cement products used in the state. It has operated since the 1830s, and today it is Boral’s largest mining operation in Australia. The mine blasts 3.5 million tonnes of rock a year using modern open-cut hard rock drill and blast techniques.
Analysing the Ground Vibration Due to Blasting at
One of the most fundamental stages in open pit mining is drilling and blasting. A good fragmentation and a minimum ground vibration are characteristics of a successful drilling and blasting operation. In this study, 78 blasting events of AlvandQoly limestone mine located in Kurdestan cement company in west of Iran were investigated. The vibrations
MEASUREMENT AND EVALUATION OF BLASTING
2014-9-5 This research has been carried out in the limestone quarries of Assiut Cement Company (CEMEX). Ground vibrations and airblast overpressure induced by bench blasting in the quarries of the company have been measured and evaluated to find out the site-specific attenuation and to assess the risk of structural damage. Statistical treatment has been applied to the measured data. From the regression analysis of the individual peak particle velocity components (longitudinal, transverse, and vertical) and vector sum, attenuation relationships have been established. These relations can be used in predicting the peak particle velocity as well as to calculate the maximum allowable charge per delay. Also, the measured
A study of the efficiency of split-second delay electric
2020-10-28 Blasting caps, as used with safety fuse, are still applied in. any. mining operations. However, in the initial stages of the dev elopmmt of blasting eaps it. was. souglii to fire them electrically. The arliest attempts had two bare wires inserted in the cap charge, and ignition was by means of a spark pissed between these bare ends.
Measurement of Size Distribution of Blasted Rock Using
2010-2-2 at Limestone Quarry Site of investigation is a limestone quarry producing limestone for cement manufacturing. The mining method at the quarry uses the traditional open pit practice of drilling and blasting a planned rock bench, loading of material with wheel loaders, and hauling to the primary crusher by heavy duty rear-dump trucks.
Effects of Rock Mass Conditions and Blasting Standard on
2015-4-16 Rock blasting is the rock excavation technique most widely adopted in the various fields of the mining and con- struction industries because of its economical and efficient aspects [1]. In surface mines and quarries, the main objective is to exact the largest possible quantity at minimum cost.
Analysis of blasted rocks fragmentation using digital
2017-8-24 One of the inseparable parts of mining activities is blasting which one of its important outcomes is fragmentation. Fragmentation is the first result of blasting that is directly related to the mining costs. There are various methods for determining the degree of fragmentation which are divided into two groups, direct and indirect methods. Among direct methods, sieve analysis and, among
Control of fines through blasting design at a limestone
1990-9-1 Mining Science and Technology, 11 (1990) 173-177 Elsevier Science Publishers B.V., Amsterdam 173 Control of fines through blasting design at a limestone quarry G.R. Adhikari, B.K. Barman and B. Singh Central Mining Research Station, Dhanbad-826001 (India) (Received August 24, 1989; accepted March 1, 1990) ABSTRACT Adhikari, G.R., Barman, B.K
Limestone Extraction Without Drilling and Blasting Agg-Net
2021-8-20 For years, the limestone was extracted by drilling and blasting and then wet processed into clinker in the cement plant. In a move to increase productivity and reduce costs, IFCEM became the first cement plant in the Ukraine to initiate the transition from the wet process to a dry process, a measure that optimized the mining method for material
Controlled blasting in a limestone mine using electronic
Request PDF Controlled blasting in a limestone mine using electronic detonators: A case study Except for very deep-seated deposits, open cast mining method has been recognized as the safest
Prediction of blast-induced flyrock in Indian limestone
2014-10-1 Frequency and scale of the blasting events are increasing to boost limestone production. Mines are approaching close to inhabited areas due to growing population and limited availability of land resources which has challenged the management to go for safe blasts with special reference to opencast mining.
A study of the efficiency of split-second delay electric
2020-10-28 Blasting caps, as used with safety fuse, are still applied in. any. mining operations. However, in the initial stages of the dev elopmmt of blasting eaps it. was. souglii to fire them electrically. The arliest attempts had two bare wires inserted in the cap charge, and ignition was by means of a spark pissed between these bare ends.
(PDF) Mine Blasts in the Aru-Lõuna Limestone Quarry–a
I. INTRODUCTION Currently in Estonia, blasting operations are regulated by the Explosive Substance Act and by the regulation “Requirements on blasting projects”. It is important to consider local geological conditions that have an effect on seismic
Blasting/Mining Information · City of Doral
Blasting/Mining Information; Listen. General Information: Limestone aggregate is mined in nearby quarries and explosive charges and blasting agents are often used during this activity. These quarries are located outside of the City of Doral in unincorporated Miami-Dade County.
Mine Blasts in the Aru-Lõuna Limestone Quarry a
2013-2-4 focuses on blasting related to mining of oil shale and limestone, as they are the most important mineral resources mined in Estonia. This article describes a case study in the framework of the general research topic, focusing to the Aru-Lõuna (Aru-South) limestone quarry in the Ida-Virumaa county. I. INTRODUCTION
(PDF) Mine Blasts in the Aru-Lõuna Limestone Quarry–a
I. INTRODUCTION Currently in Estonia, blasting operations are regulated by the Explosive Substance Act and by the regulation “Requirements on blasting projects”. It is important to consider local geological conditions that have an effect on seismic
Effects of Rock Mass Conditions and Blasting Standard
2015-4-16 Rock blasting is the rock excavation technique most widely adopted in the various fields of the mining and con- struction industries because of its economical and efficient aspects [1]. In surface mines and quarries, the main objective is to exact the largest possible quantity at minimum cost.
Effective blasting using mixture of ammonium nitrate, fuel
Effective blasting using mixture of ammonium nitrate, fuel oil, sawdust and used oil at limestone mine January 2012 Transactions of the Institution of Mining and Metallurgy, Section A: Mining
A study of the efficiency of split-second delay electric
2020-10-28 Blasting caps, as used with safety fuse, are still applied in. any. mining operations. However, in the initial stages of the dev elopmmt of blasting eaps it. was. souglii to fire them electrically. The arliest attempts had two bare wires inserted in the cap charge, and ignition was by means of a spark pissed between these bare ends.
Measurement of Size Distribution of Blasted Rock Using
2010-2-2 at Limestone Quarry Site of investigation is a limestone quarry producing limestone for cement manufacturing. The mining method at the quarry uses the traditional open pit practice of drilling and blasting a planned rock bench, loading of material with wheel loaders, and hauling to the primary crusher by heavy duty rear-dump trucks.
Limestone Rajasthan
2019-11-16 Open cast mining method with single bench, deploying HEMM and conducting deep hole blasting is in practice.The sizing of ROM limestone is carried out by four nos. fully mechanized Sizing & screening plants of the total capacity 20.00 lac MT per annum.The different size products are dispatched from mines as well as by rail from Jaisalmer Railway sidings of the company.
Assessment of noise and ground vibration induced during
Mining Science and Technology (China) Volume 19, Issue 4,July 2009,Pages 420-424 Assessment of noise and ground vibration induced during blasting operations in an open pit mine — A case study on Ewekoro limestone quarry, Nigeria
Effect of Type of Explosive and Blast Hole Diameter on
2020-3-17 Rock fragmentation due to blasting depends upon many parameters. The properties of the explosive are one of them. In limestone quarries, ammonium nitrate–fuel oil (ANFO) or site mixed emulsion (SME) are generally used for rock fragmentation. Both these explosives cause substantial changes in the breakage mechanism of rockmass thereby affecting the fragmentation. This paper
Fatal Accidents Due To Flyrock And Lack Of Blast Area
2012-8-29 blasting safety. The mining industry has improved its blasting safety record during the past five years [Rehak et al. 2001]. Flyrock, lack of blast area security, premature blast, misfire, and disposal were major causes of blasting-related injuries in surface mines. Out of these flyrock and lack of blast area security accounted for 68% of the
