• Blasting accessories (EM113) SlideShare

    Aug 07, 2013· Blasting accessories (EM113) 1. Chapter 7 Blasting accessories Mary Kassel T. Blanco 2. Outline 7.1 INTRODUCTION 7.2 POWER SOURCE FOR ELECTRICAL FIRING 7.2.1 Exploders 7.2.2 Sequential blasting machine 7.2.3 Mains firing 7.3 BLASTING CIRCUIT TESTINGblasting accessories in mining ppt josjoosartwinedesign.be,blasting accessories in mining ppt . blasting accessories in mining ppt blasting accessories in mining ppt. Request for Quotation. You can get the price list and a ZME representative will contact you within one business day. Read More. Free Quote. blasting and quarrying operations for construction work ppt.

  • Blasting SlideShare

    Nov 19, 2013· blasting 1. blasting most basic unit operation of any mining activity 2. objective • rock is blasted either to break in to smaller pieces such as in most mining and quarrying operations or large blocks for dimensional stone mining and some civil engineering application, or to create space.Blasting Accessories Orica Mining Services,Blasting aCCessories Blasting Switch Blasting Switch (Complete) Incorporates all essential safety features required when firing from power lines. The box is painted red to be clearly seen, is lockable to prevent tampering, and is durable to with stand the underground environment.

  • Surface Mine Blasting Office of Surface Mining

    SURFACE MINE BLASTING Proceedings: Bureau of Mines Technology Transfer Seminar, Chicago, IL, April 15, 1987 Compiled by Staff, Bureau of Mines ABSTRACT The Bureau of Mines has sponsored a comprehensive research program to enhance the safe, effective, and efficient use of blasting technology by the mining industry.Blasting Safety Training PowerPoint Presentations,Blasting Regulations Explores the requirements on blasting operators contained in 29 CFR, BATF and DOT. 16 slides: Blasting Regulations Regulatory requirements for NCDOT blasting operations. 19 slides: Blasting Safely with Proper Techniques The most important responsibility of the blaster in charge is to prepare and fire safely.

  • An Analysis and Prevention of Flyrock Accidents in Surface

    An Analysis and Prevention of Flyrock Accidents in Surface Blasting Operations by T. S. Bajpayee, Harry C. Verakis, and Thomas E. Lobb Abstract Blasting is a primary means of extracting minerals and ores at surface mining operations. The domestic consumption of explosives and blasting agents during the year 2002 was about 5.53 billion pounds.Optimization of Blasting Parameters in opencast Mines,optimization of blasting parameters in opencast mines a thesis submitted in partial fulfillment of the requirements for the degree of bachelor of technology in mining engineering by manmit rout & chinmay kumar parida under the guidance of dr. h. b. sahu department of mining engineering national institute of technology rourkela-769008

  • Blasting Courses and Live Webcasts Edumine

    Blasting Courses and Live Webcasts. Online courses, short courses and live webcasts about Blasting for mining and geoscience from Edumine.Underground Drilling and Blasting Training DVD ACG,Oct 23, 2012· The aim of this new DVD is to provide workers with the critical knowledge on drilling and blasting to aid appreciation of the importance of these mining processes and their related hazards.

  • Drill and Blast Method railsystem

    Drill and Blast Method. Drill and blast method is mostly used method for the excavation throughout the world. The method can be used in all types of rocks and the initial cost is lower than the mechanical method like TBM. This tunneling method involves the use of explosives.Blasting and Explosives Quick Reference Guide 2010,Presplit blasting Spacing = Hole diameter x 12 Burden = 0.5 x production blast burden (B) Uncharged length at top = 10 x D Powder factor = 0.5kg per square metre of face Do not stem holes. Fire all holes on the same delay, or in groups of ≥ 5 holes Smooth Blasting Spacing = 15 x Hole diameter (hard rock) 20 x Hole diameter (soft rock)

  • An Analysis and Prevention of Flyrock Accidents in Surface

    An Analysis and Prevention of Flyrock Accidents in Surface Blasting Operations by T. S. Bajpayee, Harry C. Verakis, and Thomas E. Lobb Abstract Blasting is a primary means of extracting minerals and ores at surface mining operations. The domestic consumption of explosives and blasting agents during the year 2002 was about 5.53 billion pounds.(PDF) ROCK BLASTING FOR MINING ResearchGate,PDF Mining is a geotechnical industry. Geologist explore the economic mineral deposits for mining. A lot of methods are adopted to exploit the valuable economic mineral resources through open

  • Blasting Safety Training PDF Files miningquiz

    An effective blasting solution has been identified that enables the safe utilisation of powder factors several times higher than those used conventionally to provide significant improvements in fragmentation. Blasting PowerPoint Presentations Browse our collection of Blasting PowerPoint Presentations. Blasting Safety VideosExplosives and Detonators Mining and Blasting,The composition of explosives is balanced chemically to produce the desired effects in blasting. Note: the orange fumes sometimes seen in open pit blasting indicate that there is water in the blastholes. The water desensitises a proportion of the fuel, upsetting the oxygen balance and resulting in the production of nitrous oxides. 4.1 ANFO

  • alaska.net

    alaska.netTypes of Explosives accessories Mining and Blasting,10 ELECTRIC DETONATORS a) Instantaneous Elect Det b) “L” Series Millisecond Delay Det c) Half Second (LP) Delay Det d) Electronic Detonators a) Magnadet Detonators

  • OPTIMIZATION OF PRODUCTION PLANNING IN

    optimization of production planning in underground mining a thesis submitted in partial fulfillment of the requirements for the degree of bachelor of technology in mining engineering by jitesh gangawat 110mn0524 under the guidance of prof. d. s. nimaje prof. s. chatterjee department of mining engineering national institute of technologyChapter 11 SPECIALIZED BLASTING TECHNIQUES,blasting of cornices increases efficiency, boring holes along the presumed tension line exposes the ava-lanche blaster to considerable danger. Safety in borehole blasting depends critically on: 1. The blasting crews ability to judge correctly the safe working line. techniques for working with this high explosive (See Chapter 5 Detonating Cord)..

  • osmre.gov

    osmre.govSurface Mining Methods and Equipment,UNESCO EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING Vol. II Surface Mining Methods and Equipment J. Yamatomi and S. Okubo ©Encyclopedia of Life Support Systems (EOLSS) Figure 2. Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs.

  • Equipment and accessories Explosives and accessories

    Firing accessories. Titanobel offers a full range of accessories for reliable initiation of explosives charges. Blasting machines These include: • Condenser blasting machines with a generator actuated by a handle, for public works, quarries and mines not susceptible to methane.CDC Mining Topic Blasting and Explosives NIOSH,Apr 04, 2017· Between 1994 and 2005, eight miners were injured by exposure to blasting fumes. Surface blasting breaks up rock and frequently throws rock away from the blast site. Mine workers may be killed or injured by rock thrown by a blast. The blaster who designs a blast determines how far rock from the blast is expected to go.

  • Controlling the Adverse Effects of Blasting

    Surface Mining, U.S. Department of the Interior, located in Denver, Colorado. The module is an example of the technical assistance the Federal government furnishes States to assist them in meeting the requirements of the Surface Mining Control and Reclamation Act of 1977, upon which their State surface coal -mine regulating programs are based.Blaster Certificate Training and Experience,Classroom Training and Duration. The blaster must have adequate classroom training along with the hands-on experience. Classroom training should cover the technical aspects of blasting operations and State and Federal laws governing the storage, transportation and use of explosives, including the topics specified in Table 2 below.

  • H BLASTING IN SURFACE EXCAVATION Mining and

    In normal blasting all holes do not blast at the same time. Bench blasting is normally carried out as short delay blasting. The firing pattern has to be designed so that each blasthole has free breakage. The firing sequence of a chevron pattern can radically alter the drilled burden and spacing into the blasted or effective burden (Be)Explosives and Detonators Mining and Blasting,The composition of explosives is balanced chemically to produce the desired effects in blasting. Note: the orange fumes sometimes seen in open pit blasting indicate that there is water in the blastholes. The water desensitises a proportion of the fuel, upsetting the oxygen balance and resulting in the production of nitrous oxides. 4.1 ANFO

  • Blasting Safety Training PDF Files

    An effective blasting solution has been identified that enables the safe utilisation of powder factors several times higher than those used conventionally to provide significant improvements in fragmentation. Blasting PowerPoint Presentations Browse our collection of Blasting PowerPoint Presentations. Blasting Safety VideosDrill and Blast Method railsystem,Drill and Blast Method. Drill and blast method is mostly used method for the excavation throughout the world. The method can be used in all types of rocks and the initial cost is lower than the mechanical method like TBM. This tunneling method involves the use of explosives.

  • A Case Study Examination of Two Blast Rounds at a Nevada

    A Case Study Examination of Two Blast Rounds at a Nevada Gold Mine Ed Mchugh and Joel Warneke, National Institute of Occupational Safety and Health and Cristian Caceres, University of British Columbia . ABSTRACT . NIOSH researchers collected basic data from two blast rounds at the SSX-Steer Mine as a component ofTrace It Blasting THE BETTER WAY TO BREAK ROCK,Our founder Brian Cudmore spent 30 years in the mining industry before developing the Trace-It. His experience includes everything from development to tailings management to explosives. As a result of this experience, the Trace-It was a great success. Brian faced one problem, however. Many of his customers asked if he was also able to supply blasting accessories.

  • Surface Mining Methods and Equipment

    UNESCO EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING Vol. II Surface Mining Methods and Equipment J. Yamatomi and S. Okubo ©Encyclopedia of Life Support Systems (EOLSS) Figure 2. Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs.Techniques of Controlled Blasting SlideShare,Dec 17, 2009· Following are the techniques of controlled blasting: Line drilling, Trim (Cushion) blasting, Smooth (contour or perimeter) blasting, Pre-splitting, Selecting and employing various parameters of blast design, using modern technology, Precise and accurate timing delays, Muffle blasting at critical and congested areas. 4 5.

  • Equipment and accessories Explosives and accessories

    Firing accessories. Titanobel offers a full range of accessories for reliable initiation of explosives charges. Blasting machines These include: • Condenser blasting machines with a generator actuated by a handle, for public works, quarries and mines not susceptible to methane.Fatal Accidents Due To Flyrock And Lack Of Blast Area,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

  • alaska.net

    alaska.net,