mining and mine surveying mine machinery guided by :mr. naidu sir prepared by: 1) transport of ore shoeb ansari 2)winding in shaft rohan indorkar 3) wire ropes ratik motilinge, kapil papdikar 4)mine pumps darshan fandi 5) coal cutting machine prafful rewatkar 6) electric power supply abhishek vanjar, rushikesh lanjewar 7) gate ...
Underground mining. In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying to the coal seam is gained by suitable openings from the surface, and a network of roadways driven in the seam then facilitates the installation of service facilities for such essential activities ...
3. DRAGLINE • Walking draglines are for many years the most popular machine for opencast mining due to their flexibility, utility and availability. • their low operating costs for waste mining • Draglines are deployed wherever there is scope for side casting Overburden above coal seam into the decoaled area. • It is very cost effective technology cost of OB removal is cheaper than ...
1. CONCEPT OF OC MINE PLANNING DESIGN. 2. Mining Methods • Coal is mined by two main methods Surface or 'opencast' mining and underground mining. • The choice of method is largely determined by the depth,thickness and no. of coal seams, geology of the coal deposit and other factors. 3.
The description of modern control miningandtransport complex systems shows that operator control is currently used. During the replacement with robotic control systems, automatic and automated ...
The machine cuts the coal loads into trucks for onward transportation to Surface ISN 5 ..., loading the crushed coal by front and loader on to trucks and dispatch of the cut material by gathering arms on to a belt conveyor and then to a waiting trucks. ... Up to The compact and highly maneuverable machine to mine coal, gypsum ...
Fortescue Metals Group (FMG) and BHP are two of the biggest customers of Caterpillar's autonomous haulage solutions. FMG's Solomon iron ore mine is Caterpillar's flagship operation for its autonomous solutions. The mine site is being developed into a fully autonomous operation. FMG also completed the conversion of the mining truck fleet at the Chichester Hub iron ore operation in Pilbara ...
Openpit mining operations involve loading and hauling of material from the pit to the processing plant or waste dump depending on the ore grade. These two activities account for more than 50% of total operating costs of the mine. There are several loading and hauling systems that are employed depending on the geometry of the ore body. This study applies a shoveltruck haulage system in a ...
Construction of intelligent coal mine knowledge map. Through the establishment of information entities, the mapping from the physical space to the digital space is realized. This mapping includes not only physical entities (, coal mining machines, hydraulic supports, and tunneling machines), but also time entities (, roof pressure, gas overruns, equipment failures) and functional ...
16. Mining operations 1. clearing the land of trees and vegetation, 2. removing and storing the top layers of the unconsolidated soil (topsoil), 3. drilling the hard strata over the coal seam, 4. fragmenting or blasting the hard strata with explosives, 5. removing the blasted material, exposing the coal seam, and cleaning the top of the coal seam, 6. fragmenting the coal seam, as required, by ...
namely the movement of ore/coal, persons, materials and equipment. Ore/coal transport has either been by locomotivehauled mine cars, belt conveyors or rubbertired trucks. The transport of persons, materials and equipment has either been by railmounted track systems or trackless systems/movable vehicles. Each system described above is still
OITDS. 1. • The mining operations in large opencast mines are becoming more and more complex due to growing number of heavy earth moving machineries, its consequent management in varying mining conditions. • As the capital investment in large projects is very high, underutilization of resources can be very detrimental to profitability.
7. A steam power plant must have following equipments : 1. A furnace to burn the fuel. 2. Steam generator or boiler containing water. Heat generated in the furnace is utilized to convert water in steam. 3. Main power unit such as an engine or turbine to use the heat energy of steam and perform work. 4.
This is "Enthusiastic" project work, designed for loading the trucks automatically at coalmines. By implementing this kind of automatic truck loading machin...
1. Coal Mining | Surface Equipment | Prepared 2. Open Cut Mining Method. 3. DRILLING BLASTING Blasting is an integral part of surface mining operations. To uncover coal reserves, the rocks overlying the coal are broken with explosives and excavated with various types of large earthmoving equipment.
Safety features in tippers / trucks01) Cabin guard extension canopy shall cover the operators cabin fully. 02) Exhaust / retarder brake device to control the speed of truck while operating down the gradient. DGMS (tech) circular 02 of 2004 In dumpers, retarders are provided to slow the speed of engine in such cases. In tippers, manufacturers are now providing exhaust brake as an extra ...
3. In mining activity excavation is basically done by drilling and blasting and can be pinpointed as contributions to dust generation. With an increased level of mechanization and the pressing demand to boost production for minimizing the supply gap, generation of air borne respirable dust is increasing. Prolonged exposure of coal mine dust is known to cause various respiratory diseases like ...
The machine is very useful in mines where seepage is excessive or where rain water forms muck, or where coal pillars are extracted by opencast method. It is quite convenient for cutting garland drains and sump. In Indian coal mines only small backhoes of capacity to m³ are used for special purposes stated above.
Calculation of Numbers of Truck Description Value say mine capacity = million t say truck capacity = 85 t 85 annual production /truck /year = 4392 x 408 t trucks required = / trucks in use (no.) 8 trucks in fleet = 8/ (no.) taking 85% availability 9 costing hours = [7248{} {}x 7 ...
Currently NCL has a fleet of 1239 equipments for production. NCL has produced Million Tonnes (MT) coal % of the target in FY 202122 with % growth over previous year. It was for the 4th consecutive year, when NCL surpassed 100 MT milestone. NCL is one among the 3 subsidiaries of CIL to cross 100 MT in FY 202122.
12. Surface Coal Mining Methods in Australia. 13. The draglines operate in the lower portion of the seams where the interburden are the. tors are used on the upper portion of the. deposit, where ...
Medium capacity dumper; 50 100 tonnes 3. Large capacity dumper; 100250 tonnes 4. Giant dumper; more than 250 tonnes. 3. Rear discharge dumper. 4. • In this type the main body, which accept the material from excavator is placed on the rear part of operators cabin and discharges material through the rear portion of the equipment • Rear ...
LHDmachines are used to load the trucks at the loading bay as shown in Figure 2. When there is no truck to loadLHDs haul the material and, it on a stockpile. Loading time per pass dump includes bucket travelling time when empty, digging time, bucket travelling time when loaded, and loading
Accurate numbers are more difficult to find in a global context, but some sources estimate that up to 12,000 miners die each year in mining accidents, mostly in coal mines.
© DZCrusher - كل الحقوق محفوظة
