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LIST OF AWARD WINNING MINES FOR NATIONAL SAFETY …

Type - 3 Coal Mines – Opencast BINA OCP Northern Coalfield Ltd. LAKHANPUR OCP Mahanadi Coalfields Ltd. Type - 4 Metal Mines – Mechanised Opencast JAJANG IRON & MANGANESE MINE Rungta Mines Ltd. JODA WEST IRON & MN MINE TATA Steel Ltd. Type - 5 Metal Mines – Manual Opencast SUKET PAYALI LIME STONE MINE ASI Industries Ltd. KATASAI MANGANESE ...

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Rock blasting for mining - SlideShare

Jul 28, 2017· Selection of the drilling pattern varies with the type and size of the drill's used, depth of holes, kinds of rocks handled, quantity, rapidity of the explosive & amount of steaming. 50. 50 An array is the line of drill holes made for blasting works. 4.0 Blasting Pattern: The …

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Thread - Drill & Tap Chart

Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm)

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Opencast Top-hammer Drill Rig China Manufacturer

Originated from classic drill rig frame structure and system, with telescopic boom and oscillation, LGMRT ST120 surface top-Hammer Drill Rig can be widely used in various mining and construction applications.Equipped rock drill LD120 and drilling control system from , together with the mechanical rod changer and anti-jamming design, which makes the drilling rigs efficient and ...

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HAZARD IDENTIFICATION AND RISK ANALYSIS IN MINING …

analyze hazards. The use of multiple hazard analysis techniques is recommended because each has its own purpose, strengths, and weaknesses. As the part of the project work, hazard identification and risk analysis was carried out for an iron ore mine and a coal mine and the …

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Rama Mining Tools - Top Hammer Version, DTH Hammer Version ...

Rama Mining Tools Wagon Drill comes in 2 variants. 1) Top Hammer version: Drilling up to 20-40 meter depth with hole dia of 48-76 mm. (With RMT 120F | BBC 120F Pneumatic Drifter) 2) DTH Hammer version: Drilling depth of 36.50 meters with hole dia of 102 to 114 mm.A vertically mounted pneumatic hammer drill and percussive-type rock drill supported on a three-wheeled wagon.

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Opencast Drilling Rig for Mining China Manufacturer

Equipped by tailor-made rock drill LD100 and drilling control system from , together with the mechanical rod changer and anti-jamming design, which makes the rigs efficient and reliable, STR100 Top Hammer Drilling Rig is the ideal choice for medium size quarry …

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An Analysis and Prevention of Flyrock Accidents in Surface ...

The drill log should include the details of any unusual or exceptional circumstances ... and ANFO type explosives, respectively. The wall of a blasthole could experience transient pressure of about 500,000 psi for emul sion-type explosives. Th is high pressure causes ... and mechanical strength of the rock. Factors responsible for creating this ...

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Blast optimization at Kriel Colliery J r n a

Compare this to other drill and blast patterns. Fragmentation is not the only parameter used to assess the performance of a blast. Thompson (2008: 4–17) discusses muck pile shape, highwall toe, and fly rock as other means to measure results. In this study, fragmentation was the main measure of blast performance.

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32 Different Types of Hammers and Their Uses [Pictures]

Sep 09, 2020· It is used for setting the rivet. It is also used to strike blows on a metal sheet up to a certain depth. This types of hammers has been shown in the figure. Its weight is between 0. 11 to 0.91 kg. 3. Sledge Hammer. These are mostly used in blacksmithy for straightening round …

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CURRICULLUM OF 4th SEMESTER For DIPLOMA IN MINING ...

o State different types of exploder, its construction and safety features, circuit tester. o Describe stemming rod, crack detector knife, crimper. 5. Drilling o Explain different principles and methods of exploratory drilling in surface mining. o State different types of drill used in Opencast mining.

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List of Technical Papers – Mining and Blasting

2. What KPIs should be tracked to demonstrate a Value in Use program is successful? 3. What are the KPIs on other mining processes that must be kept to ensure an Explosives Value in Use program is capable of being valued as responsible for the blasting outcomes and mine's overall improvements. 4.

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MINE MACHINERY-II ( THEORY 2 ) 1.0 Underground face ...

The steel body drill (type CD-1) weight 21.5 kgf and the aluminum body drill weight 17.5 kgf. The coal drill is used not only for coal but other rocks in coal mines expect very hard grade of stone. 1.1.1 Describe constructional features, operation, principle & use of electric coal drill. 1.

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Box Cut And Types Of Opencast Working » MiningPathsala ...

Jul 02, 2021· Types of opencast working :-Manual opencast working (as per CMR 105). Mechanical opencast working (as per CMR 106). Manual Opencast Working :- In this case, manual labour is employed, small drilling machines, drilling 1.2 m to 1.8 m deep holes, 37 mm dia are used and the holes are blasted with gun-powder or other explosives.

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Electrical Distribution, Protection and Controls in Mines

We conclude this section with a typical example of hand held drill, which is regularly used in the mines, and in Fig. 21.27 its control curcuit is shown. It consists of 3ph, 50 c/s, squirrel cage motor in a flame proof casing which have two hand grips, an external fan with a cowl and a …

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mechanical engineering: Types of Drilling Jigs

This is an improvement of the template type of jig. In place of simple holes, drill bushes are provided in the plate to guide the drill. The work piece can be clamped to the plate and holes can be drilled. The plate jig are employed to drill holes in large parts, maintaining accurate spacing with each other.

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Chapter 8 BLAST DESIGN - NPS

The type and cost of explosives will vary from one operation to another, dependent upon many conditions. The geologic formation, such as hard seams, cap rock, hard bottom, or large toes, dictate the use of high-energy explosives. Water-filled boreholes require the use of water-resistant products at a premium cost. The cost of a

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electric rock drilling, electric rock drilling Suppliers ...

< Sponsored Listing Product Application Electric Rock Drill Application 1.Electric rock drill is used for drilling burst mine hole in rock. 3.The explosion-proof electric rock drill is used for drilling water injection hole, on coal seam, exploring water holes and discharging gas, also can be used for soft rock tunnel excavation.

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For DIPLOMA IN MINING ENGINEERING (Effective FROM 2019 …

o State different types of exploder, its construction and safety features, circuit tester. o Describe stemming rod, crack detector knife, crimper. 5. Drilling o Explain different principles and methods of exploratory drilling in surface mining. o State different types of drill used in Opencast mining.

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Germany Drills, German Drills Manufacturers - Made in Germany

Made in Germany Drills Directory - Offering Wholesale German Drills from Germany Drills Manufacturers, Suppliers and Distributors at TradeKey.com

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Tap and Drill Sizes Chart

The information provided in this document is provided "as is" with no guarantee of accuracy or relevance of the information provided. The chart has been developed—using various print and on-line sources—as a primary reference source for students in engineering, engineering technology, or vocational classes.

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Rock Drills used in South African Mines: a Comparative ...

hydraulic drill, and a pneumatic drill with standard and muffled configurations. The pneumatic, hydraulic and electric drills tested are in current use. The pneumatic drill that was tested has been the 'industry standard' since the late 1970s. The other two types are used to a lesser extent.

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Open-pit mining - Wikipedia

Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow.. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining.Open-pit mines are used when deposits of commercially ...

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Digging deeper: Mining methods explained | Anglo American

The underground mining methods we use include room and pillar, narrow vein stoping and large-scale mechanised mining. Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are gradually cut away as the work proceeds. We use this for mining coal.

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15 Different Types of Power Tools - Home Stratosphere

Many types of sanders are used to carry out this purpose; the most useful and largest of all is a belt sander. It features an electric motor, a pair of cylinders, and sandpapers, helping in trimming and finishing wooden objects. They are also used for the purpose of smoothing rough surfaces, leveling out and shaping objects. Example: Orbital Sander

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Recommended Readings 1 D J Deshmukh Elements of Mining ...

Select suitable types of wire ropes for different mining applications. 2. Select the suitable mine winders and accessories for a mine. 3. Design pit top and pit bottom layouts. 4. Know different types of mine transport systems used in underground mines. 5. Know the various types of face machinery for coal and metal mines.

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Mining Cables - Tunnelling, Mining & Drilling Cable ...

Additionally we supply a range of low voltage Type 61 and 63 cables, and medium voltage Type 611, 622, and 633 cables for portable equipment in accordance with South African National Standards (SANS) as well as a range of heavy-duty dynamic equipment cables manufactured to AS/NSZ standards including the Type 450/Type 455 cables and Type 240, 241 & 245 cables.

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PRE-FEASIBLITY REPORT Of JASVANTPURA BLACK TRAP MINE ...

Mechanized Opencast method. The mine lease area is 0.91.78 hect. The expected life of the mine is 10 years. Water requirement for the proposed project for drinking use, dust suppression and other use will be 3.5 KLD, which will be taken from nearby source. 2.3 Need for the Project and Its Importance to the Country or Region

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Bord-and-pillar mining in inclined orebodies

Mechanized bord-and-pillar mining is thus considered as a supplement to conventional mining, which ... The Vlakpoort project will need the same types of excavations in its layout as the 16 West project, although ... opencast mining by drilling three surface boreholes and tracing the sub-outcrop with trenching. Due to …

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DRIVAGE IN STONE (COAL MINES) - Mining Technology

Jun 28, 2017· The diamond section drill rod wears very fast. The drill bits used for coal can be used for the soft stone also, though the life naturally is much less. The improvised drill, which normally has a rating of 20 to 25 minutes in coal, gets hot after use for 10 to 15 minutes and sufficient time should be allowed for its cooling down before re-use.

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BREAK-EVEN ANALYSIS OF MINING PROJECT - nitrkl.ac.in

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 5.2.1.16 Production plan for surda mines 41 5.2.1.17 Scheme of operation. ...

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