Neptune Minerals & Mining Service by Mehrotra Buildcon Private Limited

Open pit mining is the process of extracting ore, rocks or any valuable material from the ground by digging. Some people call open pit mines quarries. Most open pits are designed in a step-like structure, with each step dug deeper into the earth to reach the area to be mined. The steps include access roads, and as more material is removed, new steps can be built. The goal is to remove the valuable material, but that involves first removing large quantities of rock at the lowest possible price. A major element of the mining process is breaking up the rock. This fragmentation is accomplished by detonating explosives set in blast holes. The heading, or rock face to be blasted, is typically 40-feet wide by 20- to 25-feet high. A designed pattern of 40 to 50 horizontal drill holes two inches wide by 12- to 14-feet deep, are bored into the rock face by large portable drills. This configuration of holes is called a "round." In a typical round, the holes are drilled at an angle with the free face. Five hundred or more pounds of explosives may be loaded in one round depending on the size of the face. The detonation devices, or blasting caps, have set delay times so that charges in the center of the face detonate first and the surrounding charges detonate two to several milliseconds later. Using this method, the explosives in the central angle-cut holes blast the rock into the open area in front of the face, allowing the delayed charges to thrust material into and past the initial blast opening. A typical operation can drill and blast up to five rounds per day, loosening tons of rock in several different headings. The time-delayed explosions not only increase blast efficiency, but greatly reduce ground vibration. Front end loaders then lift the rock into haul trucks which transport it to a rock crusher sometimes outside the mine. In deep mines, such as the Kaser Corporation's Durham Mine in Marion County, the primary crusher is inside the mine, and crushed rock is moved via conveyor belt through an inclined tunnel to the surface where it is processed further.

The Firm M/s. Neptune Minerals and Mining having its Administrative Office at 9, Industrial Estate, Rewa Road, Satna (M.P), is recently formed on dated 13th  August 2012 under Indian Partnership Act 1932. The Firm is expertise in exploration of over burdens and mining of all kind of minerals, Civil construction including infrastructure & Housing development etc. The mining is the process of extracting ore, rocks or any valuable material from the ground by digging, carried out by blasting operations & use of heavy earth moving machines. Most open pits are designed in a step-like structure, with each step dug deeper into the earth to reach the area to be mined. The steps include access roads, and as more material is removed, new steps can be built. The goal is to remove the valuable material, but that involves first removing large quantities of rock at the lowest possible price. A major element of the mining process is breaking up the rock. This fragmentation is accomplished by detonating explosives set in blast holes. The heading, or rock face to be blasted, is typically 40-feet wide by 20- to 25-feet high. A designed pattern of 40 to 50 horizontal drill holes two inches wide by 12- to 14-feet deep, are bored into the rock face by large portable drills. This configuration of holes is called a "round." In a typical round, the holes are drilled at an angle with the free face. The adequate quantity of explosives may be loaded in one round depending on the size of the face. The detonation devices, or blasting caps, have set delay times so that charges in the center of the face detonate first and the surrounding charges detonate two to several milliseconds later.