our products

D&Q Mining is a high-tech company integrating R&D, production and sales. It provides mature products and solutions such as crushers, sand making, milling equipment, mobile crushing stations, etc., for aggregate, mining and waste recycling.

iron ore blasting pattern method

Iron Ore Processing for the Blast Furnace

Once the taconite rock is exposed, large drilling rigs drill blast holes 16" in diameter by 40' deep, in some cases. Nearly 400 of these holes are drilled in a blast pattern. Before the blast, the holes are filled with a special mixture of blasting agents. Once prepared, the mine site is cleared of workers and equipment, and the blast is detonated.

More

Selection of the most proper drilling and blasting pattern

blasting pattern for Sangan Iron Mine, Iran. To achieve this, in the first step, rock fragmentation, back break, fly rock, specific charge and specific drilling were considered as the decision criteria and their degree of importance was calcu-lated using the AHP method under a fuzzy environment. Then, TOPSIS and PROMETHEE methods were used to

More

Selection of the most proper drilling and blasting pattern

This paper aims to select the most proper drilling and blasting pattern for Sangan Iron Mine, Iran. To achieve this, in the first step, rock fragmentation, back break, fly rock, specific charge and specific drilling were considered as the decision criteria and their degree of importance was calculated using the AHP method under a fuzzy environment.

More

(PDF) Design of controlled blasting (pre-splitting) in

Design of controlled blasting (pre-splitting) in Golegohar iron ore mine, Iran surface between the main blasting pattern and open pit final walls. the pre blasting and the method to define

More

Evaluation of effect of blasting pattern parameters on

Dec 01, 2008· Drilling cuttings are used as stemming material. The other blasting design parameters of the Gol-E-Gohar iron ore mine are listed in Table 1. Unsuitable blasting patterns in this mine have exacerbated the back break phenomenon and it has reached up to 20 m.

More

Iron Ore Blasts YouTube

Jan 02, 2013· A bunch of iron ore blasts from Christmas Creek, WA

More

Chapter 8 BLAST DESIGN National Park Service

DELAY PATTERNS Delay patterns, and varying the hole array to fit natural excavation topography, allow for more efficient use of the explosive energy in the blast. Benches may be designed and carried forth with more than one face so that simple blasting patterns can be used to

More

Iron Ore MSK

Iron Ores carrying very high quantities of hematite or magnetite (greater than ~60% iron) are known as "natural ore" or "direct shipping ore", meaning that those can be fed directly into iron-making blast furnaces. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel. 98% of the mined iron ore

More

Iron Ore Processing for the Blast Furnace

Once the taconite rock is exposed, large drilling rigs drill blast holes 16" in diameter by 40' deep, in some cases. Nearly 400 of these holes are drilled in a blast pattern. Before the blast, the holes are filled with a special mixture of blasting agents. Once prepared, the mine site is cleared of workers and equipment, and the blast is detonated.

More

Selection of the most proper drilling and blasting pattern

This paper aims to select the most proper drilling and blasting pattern for Sangan Iron Mine, Iran. To achieve this, in the first step, rock fragmentation, back break, fly rock, specific charge and specific drilling were considered as the decision criteria and their degree of importance was calculated using the AHP method under a fuzzy environment.

More

Iron Ore Smelting Process Bright Hub Engineering

Iron ore is obtained in the conventional method of open cast or underground mining and conveying the ore to the surface preparation are where it is crushed, washed, and transported to the smelter. Here the ore is put into a blast furnace along with limestone and coke and subjected to hot air blasting and heat which converts the ore to molten iron.

More

Iron Ore Blasts YouTube

Jan 02, 2013· A bunch of iron ore blasts from Christmas Creek, WA

More

Iron ore Orica

Advanced blasting technology and clever blast design can improve the utilisation of the drilling fleet and reduce capital and operating costs without compromising productivity. Matching explosive energy to geology enables expanded patterns without affecting fragmentation.

More

Iron Ore MSK

Iron Ores carrying very high quantities of hematite or magnetite (greater than ~60% iron) are known as "natural ore" or "direct shipping ore", meaning that those can be fed directly into iron-making blast furnaces. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel. 98% of the mined iron ore

More

Extraction of Iron Metallurgy Blast Furnace and Reactions

A blast furnace is a gigantic, steel stack lined with refractory brick where the concentrated iron ore, coke, and limestone are dumped from the top, and a blast of hot air is blown into the bottom. All the three ingredients are crushed into small round pieces and mixed and put on a hopper which controls the input.

More

(PDF) ROCK BLASTING FOR MINING ResearchGate

The aspects concentrated in this report are: a) Purpose and scope of blasting b) Steps involved in blasting c) Blast design and patterns d) Methods of blasting e) Controlling factors of Blasting

More

The Advances of Technology & Methods of Future Mining

The Advances of Technology & Methods of Future Mining Operations; In addition to being much more efficient at drilling blast patterns, automated drill rigs can be equipped with the latest advancements in cutters or preconditioning equipment making cutting easier. (40%), iron ore and precious metals. Mining also has a positive impact

More

Beneficiation of Iron Ore Mineral Processing & Metallurgy

Metallurgical ContentThe Iron Ore Process FlowsheetCRUSHING AND GRINDINGHYDROCLASSIFICATION AND MAGNETIC FINISHINGCONDITIONING AND FLOTATIONSILICA FLOTATION REAGENTSTHICKENING AND FILTERINGADVANTAGES OF FLOTATION Beneficiation of Iron Ore and the treatment of magnetic iron taconites, stage grinding and wet magnetic separation is standard practice. This also applies to iron

More