Our powder factor for aggregate mining

Study on optimum powder factor and quality of explosives ...

The powder factor in NCL, BCCL, SECL, ECL, WCL and West Bokaro Collieries was in range of the optimum powder factor and quality of explosives was measured. The rating index of bulk explosives is varied in between 70 and 100. The powder factor in hard rock was 1.5 to 2.5m3/kg and in soft rock it was in range of 2.0to 3.m3/kg.

literature review of powder factor in mining – SZM

Powder Factor In Blasting Lime Stone Mining south africa. drilling machine used in lizenithne mines in india.. blasting south . literature review of powder factor in mining literature review of powder factor . literature review of powder factor in mining. flyrock in bench …

gravel equipment factor - progetto-lithos.eu

powder factor for aggregate mining - vivekanandbcaorg SBM Mineral Processing Dept features Machines And Equipment Used By Aggregates And Powder Companies for sale from mining, compaction factor for stone aggregate .

Definition of powder factor - mindat.org glossary

Definition of powder factor The quantity of explosive used per unit of rock blasted, measured in lb/yd 3 (kg/m 3 ) per ton (metric ton) of rock. Click here to see list of references, authorities, sources and geographical terms as used in this glossary.

Blast optimization at Kriel Colliery J r n a - SAIMM

and how to calculate the results of a blast. Investigating the reasons for the poor blast results and possible solutions consisted mostly of personal communication with mine employees and Dr W. Crosby, a world renowned mining consultant. To develop the simulation model, the formulae identified in the literature study were used. A time study was conducted on one of the drills to determine the ...

Selection of Powder Factor in Large-Diameter Blast Holes

Selection of Powder Factor in Large-Diameter Blast Holes by Jack Eloranta 1995 Abstract This paper documents the relationship between material handling and processing costs

A new mining method - Orica Mining Services

A new mining method 04 Introduction The mining methods used in open cut coal strip mining in most major coal producing countries have been well established and fairly consistent over the …

Optimization of Blasting Parameters in opencast Mines

The model developed is a user friendly one, since by keeping the powder factor and number of choices of explosives available as constant and by varying the parameters like drill hole diameter, number of holes and cost of explosives one can compare the explosive

Chapter 8 BLAST DESIGN - National Park Service

115 Calculating Powder Factors The POWDER FACTOR is a relationship between how much rock is broken and how much explosive is used to break it. It can serve a variety of purposes, such as an indicator of how hard the rock

Literature Review Of Powder Factor In Mining

powder factor for aggregate mining - wildgear Literature Review Report 2 Overview of Power Factor,- literature review of powder factor in mining,In this report, we will review the fundamentals of power factor .

powder factor for aggregate mining - vasishtha.in

powder factor for aggregate mining. Engineers Institute - Best Institute for GATE … GATE Coaching at Engineers Institute of India - EII . Join Eii most trusted and highly result producing GATE Coaching Institute, having well renowned faculties from ...

A novel powder factor based bench blast design method for ...

i A NOVEL POWDER FACTOR BASED BENCH BLAST DESIGN METHOD FOR LARGE SURFACE COAL MINES by ANDREW CLIFFORD BLAIR A DISSERTATION Presented to the Graduate Faculty of …

Rock fragmentation control in opencast blasting ...

Powder factor is the ratio between the amount of rock broken and total weight of explosive consumed. It is an important parameter in blast design and has a vital influence on the resultant fragmentation. Higher powder factor causes oversize and lower powder factor results in crushed rock. Mean fragment size was plotted against the powder factor for 91 blasts of coal overlying overburden ...

Study on optimum powder factor and quality of …

The powder factor in NCL, BCCL, SECL, ECL, WCL and West Bokaro Collieries was in range of the optimum powder factor and quality of explosives was measured. The rating index of bulk explosives is varied in between 70 and 100. The powder factor in hard rock was 1.5 to 2.5m3/kg and in soft rock it was in range of 2.0to 3.m3/kg.

Powder Factor | what is powder Factor |MINING …

2019-01-06· In this video explain that what is powder Factor and how to calculate Powder Factor. Delay detonator - https://youtu.be/NmHofjCf7nI Important questions for m...

Powder Factor For Aggregate Mining - archedyl.eu

Reduction of Blasting Related Mining Process . Blasting Specialist North America Senior Mining . and maximize the amount of aggregate within a . powder factor is 1.6 tons/lb and has 76.1% of .

Powder Factor For Aggregate Mining - wwprojekt.eu

Powder Factor - University of Alaska Fairbanks. Powder Factor is defined as the amount of explosive required to dislodge and fragment 1 cubic yard of rock.

explosives – Mining and Blasting

POWDER FACTOR. In construction blasting, powder factor (PF) is expressed as quantity (unit mass) of explosive per unit volume of material blasted. For mining, it is usually expressed as quantity of explosive per ton of material (or sometimes tons of material per unit mass of explosive).

H BLASTING IN SURFACE EXCAVATION - Mining and Blasting

Powder factor or specific charge or blasting ratio: This is the ratio between the mass of explosives required to break a given quantity of rock and is normally expressed in kg/m3 or kg/t3. Table 1 is a guide to the powder factor for a given type of explosive in various types of rock. 6 Table 1: Guide to powder factors and rock factors for various rock types General Category Rock type Powder ...

BLAST DESIGN - sweethaven02.com

BLAST DESIGN 4.0. BLASTING DESIGN. The first step in designing the cut is to design the blasting such that the blast effects are controlled to suit the requirements of the operation. Knowledge of mathematical formulas will provide ease in designing a blast that will be safe as well as effective. A common way of designing a blast is using the Powder Factor method. ling minus stemming. f ...

Construction Planning, Equipment, CHAPTER BLASTING ROCK

an aggregate production operation, or to excavate a right-of-way. Blasting is accomplished by discharging an explosive that has either been placed in an unconfined manner, such as mud capping boulders, or is confined as in a borehole. CHAPTER 13. BLASTING ROCK ENCE 420 ©Assakkaf Slide No. 5 INTRODUCTION There are two forms of energy released when high explosives are detonated, …

Reconstructions - IOPscience

The powder factor is defined as the amount of explosive required to break 1 m3 or 1 tonne of rock [4]. It can serve a variety of purposes, such as an indicator of hardness of the rock, or the cost of

CALCULATION OF DRILLING AND BLASTING PARAMETERS FOR …

In the modern mining industry, for the proper efficient and rational organization of obtaining solid minerals, using of explosives is essential, especially in the exploitation of mineral resources in large-

explain heat as a production factor in mining and minerals ...

match factor mining; influencing factor of crushing process 1; conversion factor for crusher dust; explain heat as a production factor in mining and minerals industry with precautional remendation; powder factor for aggregate mining; mining science and technology impact factor; compaction factor for process stone; key sucess factor for coal mining . Get A Free Quote. Minerals and Energy ...

Bench Blasting Design for Optimum Recovery of Blocks in ...

In this research work, breaking factor is used in place of powder factor since breaking is required not powder. The aim of this research work is to establish a standard breaking factor for bench blasting in dimension quarries that will improve recovery.