View 158984484-Blast-Design-Mathematics-Enaex-ppt.ppt from MNGN 210 at Colorado School of Mines. Blast Blast Design Design for for Surface Surface Mining Mining Austin Powder Company Corporate
Lecture 14: DRILLING TECHNOLOGY FOR SURFACE BLASTING - IV: PDF unavailable: 15: Lecture 15: TECHNOLOGY FOR SURFACE BLASTING - I: PDF unavailable: 16: Lecture 16: TECHNOLOGY FOR SURFACE BLASTING - II: PDF unavailable: 17: Lecture 17: TECHNOLOGY FOR SURFACE BLASTING - III: PDF unavailable: 18: Lecture 18: …
From the OSHA Office of Training and Education, this presentation covers the rules and safety precautions when using cranes. Provides an indepth look at 29 CFR and discusses precautions that all employers must take to insure safety. An examination of 29 CFR 1910.179 regarding the safe use of cranes and slings.
the individual blast holes is regulated by the initiation system. zPlastic shock tubes or electric caps using a timing system are generally employed. zA shock tube is non-electric, instantaneous, and has a thin reactive powder that propagates the shock wave signal. Photograph courtesy of Mining Services International, Inc.
Optimization of blast is dependent on a host of complex factors related to the rock, explosive, initiation, drill-hole parameters and their layout. The present work is a step in the direction of developing a suitable blast model, with simple methodologies which can be adapted by the mining industry to achieve better blasting results.
studied over the years and modern mining methods have evolved to minimise the inherent risks of blasting under most conditions. This Code has been developed to assist the safe use of explosives in situations where a specific additional hazard may exist due to the possible unwanted reaction between an explosive and the rock being blasted.
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. item number UP002294 Blasting Switch Repair Kit
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23 slides. Explosives and Blasting Agents Transportation. Covers relevant provisions of 29 CFR 1910.109. 21 slides. Safe Introduction of Electronic Detonators. From the Ensign-Bickford Company, this presentation cover safety precautions which apply to detonators. 15 slides. The History of Explosives.
Blaster Training Module 1. This module presents information pertaining to the classification and properties of explosive products used in surface coal mines and quarries. 38 . Blaster Training Module 2. This module presents information pertaining to initiation systems currently used in blasting operations at surface coal mines. 11.8 .
(4.5 billion pounds) was used by the mining industry [USGS, 2004]. Blasting is a great tool in fragmenting and loosening rock and other materials for easier handling and removal by mining equipment. However, blasting creates serious concerns for the mine operators and miners in terms of blast area security.
However, secondary blasting is the most expensive type of blasting. Appropriate blast design is important in order to lessen the production of over size. Secondary blasting can be done by pop shooting (blockholing) and plaster shooting (mudcapping). Shaped charges are sometime used in secondary blasting, but this is much more expensive. Cast ...
1. blasting accessories submitted by ankit kumar, project jrf deptt. of mining engineering 2. outline 1. introduction 2. accessories for initiating blast (initiating devices) 2.1 non-electric systems 2.2 electric systems 2.3 electronic …
Drilling and blasting takes place at different underground levels of the mine at the same time. As the blasted rock, muck, is continuously transported to the ore pass, more blasting will encourage the roof to cave in to the void and further into the drift. This is repeated until blasting, caving and transporting depletes the entire ore body.
Drilling And Blasting PowerPoint PPT Presentations ... underground rockdrills, DTH hammers, drifters, demolition tools, drill bits, drilling tools, and accessories. MINDRILL is a seasoned OEM supplier with a strong sales & service setup in India and over 25 countries internationally. ... - BGR Mining is the best Coal Mining & Mineral Extraction ...
MSHA offers a wide variety of mine safety and health materials to assist trainers and mine operators in promoting a safe and healthy environment at U.S. mines. We are always looking for new materials to share with the mining community. Please contact us at [email protected] if you have any materials to share, or if you have any questions or suggestions regarding the safety
Blasting Accessories In Mining Ppt. We are here for your questions anytime 24/7, welcome your consultation. Get Price. The AMS ROO gasbags are a proven and preferred product in the blasting industry. They are specially designed 2-speed aerosol inflated blast-hole plugs that can be activated and dropped down dry production blast holes for faster ...
Firing accessories. Titanobel offers a full range of accessories for reliable initiation of explosives charges. • Condenser blasting machines with a generator actuated by a handle, for public works, quarries and mines not susceptible to methane. • The 815 and 818 blasting machines are intended for firing medium power detonators in series ...
Mining to access the orebody (a term used in both surface and underground mining). Dilution. The undesirable lowering of ore grade by mixing waste material during blasting and mining. Dragline. A large excavation machine used mainly in surface coal mining to remove overburden (layers of waste rock and soil) covering a coal seam.
5.2.1.12 Explosives and blasting practices 38 5.2.1.12.1 Pattern of holes, length and diameter of holes 38 5.2.1.12.2 Type of explosives 38 5.2.1.13 Status of mine 38 5.2.1.14 Stope position 39 5.2.1.15 Mine equipment, mechanical and electrical accessories and service facilities required 40 5.2.1.15.1 Mining equipment 40
• initiation systems (type I) (e.g. blasting accessories) • blasting explosives (type E.1) (e.g. detonating cord) • special purpose pyrotechnics (pyrotechnics that are combined at the site of impending use with a flammable liquid, solid or gas to produce a custom-
EXPLOSIVES & BLASTING 66 International Mining| AUGUST 2018 The Orica BlastIQ™ mobile interface on bench Dyno Nobel's BlastWeb allows reliable remote initiation of development and production blasting from a safe and controlled location underground or on the surface EXPLOSIVES & BLASTING_proof 24/07/2018 12:13 Page 2.
explosives and blasting accessories. There are three (3) types of magazines. a. The Permanent Storage Magazine where a large quantity of explosive is kept. b. The Issuing Magazine where a small or moderate quantity of explosive is kept. c. Portable Magazine an approved steel container used to store explosives for a short period of time. 31.
Blasting is very important process for mining operation and a lot of explosive is used for this purpose. The blasting process and usage of explosives, however, remain a potential source of numerous human and environmental hazards. Various studies indicate that fragmentation accounts for only 20-30% of the total amount of explosive energy used. ...
Mining Practice Controlled blasting methods are commonly used in Australian mines (6) to maintain pit wall stability. The methods include cushion blasting, pre-splitting, post-splitting, and using them with production blasts. Pre-splitting requires a row of closely spaced)). ...
Jetstream manufactures industrial high-pressure waterblasting equipment, parts and accessories utilized up to pressures of 40,000 psi. Toll Free: 1-800-231 …
Air blasting in mining is a method of blasting in which compressed air at very high pressure is piped to a steel shell in a shot hole and discharged. It is often called air overpressure. An air blast is the airborne shock wave generated by an explosion. In underground mining, after an explosion a strong rush of air follows.
Page 2 Blast Site - The immediate area where the blast holes are located and explosive materials are handled during loading of the shot. Blaster - That licensed, qualified person in charge of, and responsible for the loading and firing of a blast. Blasting Agent - A material or mixture consisting of a fuel and oxidizer used for blasting, but not classified as a high …
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
Title: Drilling. Author: Martin Killeen Last modified by: Adrian Created Date: 10/10/2008 5:56:46 PM Document presentation format: On-screen Show Company – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 598f85-NWJlM
4 In mining operations, blasting has become a routine work. With proper understanding of the rocks and blasting methods, the mining work can be done effectively. 5. 5 The basic objectives of this report is to highlight the …
REL blast hole drilling rigs are designed for drilling both soft and hard rock. With different diameters to choose from REL blast hole drilling rigs are made of high quality components to aid in maximum performance – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 91eb82-YTY1M
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.