mining equipments used in limestone mines

jaypee group | businesses | cement-mining

jaypee group | businesses | cement-mining

In order to meet limestone requirement of the three Cement Plants, Jaiprakash Associates Limited has three Captive Limestone Mines Naubasta Limestone Mine, Jaypee Limestone Mine and Bankuiyan Limestone Mine.

Systematic and scientific mining operations of Jaiprakash Associates Limited are supported with the help of Holder Bank Management Consultancy (HMC), Switzerland by state-of-the art computerized programming the Computer Aided Deposit Evaluation (CADE) & Quarry Scheduling Optimisation (QSO).

The Mining operations are carried out by fully mechanized open cast mining methods. The equipments used include 153 mm drill machines, hydraulic excavators of 3.8 cum & 4.1 cum bucket capacities, in-situ rock breaker, heavy duty 35 MT carrying capacity dumpers, bull dozers and miscellaneous equipments.

The holes drilled for blasting are charged with bottom initiation using excel detonators to minimize ground vibration and fly rock. A DS-077 Seismograph is used on a continuous basis to monitor ground vibration.

The reclamation and rehabilitation of mined area is a continuous process in Jaiprakash Associates Limited. The hard overburden generated is used to back-fill the area with good topsoil and area is rehabilitated in planned way by adopting large scale afforestation.

equipments detecting mines on logistic routes

equipments detecting mines on logistic routes

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in the field (as on date 1-1-2009) as a Electrical supervisor has join the firm from the side of company owner cum Managing director & running the firm (Govt. Mines Department.) on the name of company and Mr. Mayur P Deladia and join the company from side of owner cum managing director & running the firm smoothly with good reputation in market as on date.

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limestone extraction underground mining techniques, drilling, blasting processes

limestone extraction underground mining techniques, drilling, blasting processes

Every year increasing companies based in Iowa turn out about 35 million tons of raw material from over a wide spread network of 500 locations to bring in a multitude of construction assignments across the state. The major part of this contribute is hauled out from the well-known pits and quarries where nettle dumps and limestone bedrock are nearer to the ground surface.

In locations where geologic and market stipulations authorize, limestone for collective is mined from underground mines. Despite the fact that mining is more expensive than quarrying, the underground mining of mineral can be a combination of both economical and necessity in some areas of the state.

A foremost element of the mining process is breaking up the rock. This breakup is accomplished by detonating volatiles set in blast holes. The rock face to be gusted is typically 40-feet in width by 20- to 25-feet high. A premeditated pattern of 40 to 50 horizontal holes are drilled for the dimensions of 2 inches wide by 12- to 14-feet deep.

An emblematic maneuver can drill and blast up to 5 rounds per day, slackening tons of rock in several diverse headings. The time-delayed detonation not only amplifies blast efficiency, but will greatly shrinks down the ground vibration. These rocks are then lifted into haul trucks which transport it to a rock pounder sometimes based outside the mining area.

Limestone is a sedimentary rock comprising about 15% of the earths sedimentary crust. Limestones are generally mined in the method of open pit mining and underground mining based on the economic and environmental conditions.

All over the world, the limestones are generally mined from a quarry or the open pit mining. It is the easiest way to remove the limestone without causing much destruction. In surface mining or open pit mining, the top soil and the overburden covering the mineral is removed. Then by the process of drilling the rocks or broken. Overburden or large rocks that are difficult to break through drilling are removed by the explosives to extract the limestone. Then the ore is hauled to the crushing plant. The equipment varies according to each process based on each operation. Surface mining requires only simple machines to operate the mine when compared to underground mining. There are many factors to consider in surface mining are the selection of equipment required at each operation, production capacity, size and shape of the deposit, haul distances, estimated life of the operation and transportation cost to reach the urban centers.

The underground mining is done when the ore is present in more than 100m depth or when the availability of limestone is abundant. Other factors that determine underground mining is that topsoil covering the mineral is hard like rocks. The first process to start underground mining is considering the economical factors. As the specialised equipment and machineries are needed for underground mining, it is only done when there is a large deposit of the minerals. There are a series of processes in case of underground mining, let us get a glance through this.In case of drilling in the underground mining, drilling equipment like horizontal drills and down hole track drills are required. The drilling process completely differs from the open pit mining. The horizontal and hole track drill will produce much smaller blast holes. Explosives are sent to the hole and produce a lower volume of rock with each blast. Other equipment that are required in underground mining are powder loaders, scaling rigs and roof bolting equipment. The powder loaders send the ammonium nitrate fuel oil mixtures into the blast holes. After blasting the loose rocks from the ribs and roof of the mine are removed by the scaling rigs. Roof bolting equipment is also used in underground mining.The room and pillar type operations are undergone to recover the ore from both headings and the benches. It has several benches in the underground with height upto 30m. The thickness depends on the thickness of the deposit. The drill used will determine the size of the room. To maximize the amount of rock produced V-type drill pattern is used. Then the extracted rocks are sent for further processing.The underground mining is considered to be the most efficient method that will be used in the future. However, there are many concerns about underground limestone mining including noise, dust, vibrations due to blasting and other traffic associated with quarry operations.

Looking at what the nature has to offer, it conveys a lot of information when it comes to things that it holds in it, within it and on it. With need for minerals and its wide spread application getting widened each day, the stint of its very existence is getting blink and its depreciation in its source which is its over usage is on the high.

literally means extraction .Our Mother Earth has lots of resources deep within her and mining is the method of extracting all these valuable resources from the earth through different means.There are different methods to extract these resources which are found in different forms beneath the earth's surface.

The metal mining was one of the traditions that have been passed on meritoriously over the past years so that we meet our day-to-day needs of the desired material usage starting from the equipments that are ornamental as well as purposeful coordination of information's.

Jadeite is a pyroxene mineral and is one of the two types of pure jade. The other is known as nephrite jade. Jadeite is the rarer of the two jades, and as a result, it is considered to be more precious and valuable. Due to its striking and emerald green color it is also known as "imperial jadeite".

Surface mining is basically employed when deposits of commercially viable minerals or rock are found closer to the surface; that is, where overstrain (surface material covering the valuable deposit) is relatively very less or the material of interest is structurally unsuitable for heavy handling or tunneling.

Underground mining is carried out when the rocks, minerals, or precious stones are located at a distance far beneath the ground to be extracted with surface mining. To facilitate the minerals to be taken out of the mine, the miners construct underground rooms to work in.

Gold is a chemical component with the symbol Au that springs up from the Latin derivative aurum that means shining dawn and with the atomic number 79. It is a very sought-after valuable metal which, for many centuries, has been utilized as wealth. The metal resembles as nuggets or grain like structures in rocks, subversive "veins" and in alluvial deposits. It is one of the currency metals.

Platinum, is a heavy, malleable,ductile, highly inactive, silverish-white transition metal. Platinum is a member of group 10 elements of the periodic table.It is one among the scarce elements found in Earth's crust and has six naturally occurring isotopes. It is also achemical element.

Diamonds and supplementary valuable and semi-precious gemstones are excavated from the earth level via 4 main types on mining. These diamond withdrawal methods vary depending on how the minerals are situated within the earth, the steadiness of the material neighboring the preferred mineral, and the nonessential damage done to the surrounding environment.

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