drill and blast process flowchart

Drill and Blast Method - rail system

Drilling and Blasting Method Sequences. 1- Drilling. Before the blasting takes place, the drilling rig bores the drill holes – determined in advance in a blasting plan – in the foremst front wall of the tunnel (working face). The more solid the rock, the more explosives are required. A jumbo is used to drill …

Unit operations of mining - SlideShare

Unit operations of mining Production cycle=drill+blast+load+haul. 4. Unit operations of mining Surface mining Several inches hole drilled Charge inserted Blasted to reduce ore to fragments Broken material loaded by excavators Haulage unit may be trucks,belt conveyor, rail road cars. In dimension stone blocks are freed by saws without blasting. ...

Optimization of Blasting Parameters in opencast Mines

5.5 Flowchart of the Program 5.6 Algorithm of the Program 52-54 54-55 55-58 59 60 ... such as drilling, blasting, loading, hauling, crushing and to some extent grinding. ... An optimum blast is also associated with the most efficient utilization of blasting energy in the rock-breaking process, reducing blasting cost through less explosive ...

An integrated approach to the drill and blast process ...

In the mining cycle, drill and blast (D&B) is arguably the first and most important step to get right. D&B operations impact the entire mining process, from mining equipment efficiency, through crushing and grinding circuit performance, to recoveries and final product quality. Costs and energy usage increase throughout the comminution process.

Tunnel construction methods – Mining and Blasting

Tunnel Construction Methods and their comparison . 1. Introduction – This paper gives a general description of the tunnelling techniques such as cut and cover, drill and blast, bored tunnelling and sequential mining construction, reviewed for possible use in various projects. A summary of environmental merits and demerits associated with these methods are also given.

Drill and Blast Module | Databases | Data

The Drill and Blast Module will benefit short-range planners and designers by providing detailed predictive information in advance of actual production. This paper will cover an overview of the implementation and data setup and process flow. Scripting and reporting will also be discussed.

Optimising drill and blast operations with the next ...

News & Media Optimising drill and blast operations with the next generation BlastIQ™ digital platform 01 Oct 2018. Melbourne, Australia: Orica (ASX: ORI), the world's largest manufacturer of commercial explosives and innovative blasting systems, today announced the release of its next generation BlastIQ™ digital blast optimisation platform.

(PDF) Reducing Drill and Blast Cost through Blast ...

The estimated total drill and blast cost savings if the proposed blast parameters were adopted ranged from 5.3 to 12.2 % for ore zones and 2.9 to 14.8 % for waste zones. Total Cost per BCM of ...

Best practices: Drilling and blasting : Pit & Quarry

Larry Mirabelli, senior manager at Buckley Powder Co., teamed with Bill Hissem, senior mining engineer at Construction, to deliver a presentation on drilling and blasting at the 2015 Quarry Academy hosted by Dyno Nobel and .. Mirabelli, who has more than 40 years of experience in explosives technology between Buckley Powder and Dyno Nobel discussed a concept …

What You Need To Know About Drilling and Blasting

This is a process followed to break rock for excavation purposes, via controlled use of explosives and other methods such as gas pressure blasting pyrotechnics. Drilling and blasting is practiced most often in mining, quarrying, and civil engineering projects. The result of rock blasting is often known as a rock-cut. Why is drilling and ...

Drill and Blast Portfolio - Hexagon Mining

HxGN MineMeasure tailors proven software and hardware solutions with technical expertise to measure and improve the drill and blast process. MineMeasure drives excellence, focusing on the incremental improvements needed for elite performance, digitizing data for the mechanical delivery of high-value ore before further processing to maximize yield.

Reducing the Cost of Drill and Blast through Blast Design ...

adverse effects on the mining process. The flow on affects of such a significant pattern expansion has led to a number of benefits as detailed below; • Reduction in powder factor by 37% • Reduction in blasting cost per 20m bench by 21% • Reduction in drill metres per 20m bench by 39% • Reduction in drilling cost per 20m bench by 31%

Hard-rock room and pillar - QueensMineDesignWiki

Room and pillar is an underground mining method that has applications to a wide variety of hard-rock deposits worldwide. It is commonly classified as an open-stoping method, meaning that development involves mining out underground cavities while leaving the surrounding un-mined waste or …

Ring Blasting Design Modeling and Optimization

For this purpose, blast energy simulation allows identifying contours of fragmentation and rock breakage, to be calibrated against the real results obtained in the field. Again, simulation, measurements and analysis are key to conduct a drill and blast effective process, transforming design into reality.

Blast Management Plan - Boral

An experienced Shot Firer shall oversee this process and sign off before the Blast Supervisor is permitted to oversee any further drill and blast operations. 3. Approved Operating Requirements 3.1 Mining Licence/Work Plans Regulatory Conditions Dunmore Quarry operates drilling and blasting activities in accordance with a Ministerial consent

Improving Drill and Blast efficiency with Pitram - MICROMINE

Drill and blast is a crucial activity in the mining process that can shape the productivity and economic performance of a mining operation. The process presents an important challenge in the mining cycle which needs to be executed with precision in order to maximise a project's output.

Drilling and blasting powerpoint 2003 - SlideShare

DRILLING PATTERNS Selection of drilling pattern varies with the type and size of the drill's used, depth of hole, kind of rock, quantity, rapidity of the explosive & amount of steaming. 13. BLASTING DEFINITION- The process of breaking rocks into smaller pieces by use of explosives.

A novel powder factor based bench blast design method for ...

method against two widely accepted traditional blast design methods. Novel contributions of the research include a new universal scale of energy distribution known as Available Energy, and an entirely powder factor based blast design method that uses cut width as part of the design process. Numerical comparison testing is done at both

Maptek - Blast design, modelling & analysis to lower risk ...

Maptek BlastLogic is an all-in-one solution adding value to open cut operations through streamlined drill & blast design, tracking and analysis. It enables operations to make blast implementation decisions with reference to mine plans, geology and geotechnical data with instant data connection and visualisation in the field or office.

A uniquely holistic approach to the drill and blast process

Blast design. A holistic approach to the drill and blast process starts with a well-designed blast pattern, effectively executed using high-precision drills; it includes proven fragmentation analysis and blast monitoring solutions that minimise loss and dilution and delivers the data necessary for the next blast pattern design; and it ensures a ...

How Can Drill & Blast Operations Make Mining More ...

The drill and blast part of the process is very important in so far as how it influences other downstream processes. For example, the Coalition for Eco Efficient Comminution (CEEC) group of industry experts has recently compiled some thought-provoking figures. Comminution of gold and copper in Australia alone consumes 0.2% of global energy ...

Blast Process Flow : Approach to Drill and Blast Using 2d ...

A Drill and Blast Platform with flexiblity. A Drill and Blast Platform with flexiblity.

Drilling and Blasting Process | Mining Information Systems ...

Drilling and Blasting Process. View full size of flow chart. Contact us / Footer. 1235 James E. Rogers Rd. Room 334 (Mailing use Room 225) Tucson Arizona, 85742. Tel: (520) 626-4502.

Drill-and-blast process - E. I. DU PONT DE NEMOURS AND …

BACKGROUND OF THE INVENTION This invention relates to an improved drill-and-blast process wherein a secondary explosive charge is loaded into a drill hole and then initiated therein by the rapid release of energy projected to the charge through an inactive medium, e.g., the atmosphere, and to a drill-and-blast module useful for carrying out the process in a rapid, cyclic manner.

Iron Ore production in the Pilbara - Rio Tinto

Drill and Blast Areas for open-pit mining are selected using the mine plan. Identified areas are tagged, and then holes are drilled in an appropriate pattern by rigs. The drill holes are filled with an explosive, most often ANFO (Ammonium Nitrate/Fuel Oil) and then charged. The resulting blast breaks the material to a size required for digging.

Drilling and Blasting - an overview | ScienceDirect Topics

Zong-Xian Zhang, in Rock Fracture and Blasting, 2016. 21.5.2 To Increase Explosive Energy in Blasting. The preceding analysis indicates that an increase in drilling and blasting energy can increase the efficiency of total energy in the whole size reduction system. Moreover, a total of 210 blast tests show that the specific surface created by blasting in the unit of cm 2 /g linearly increases ...

RECOMMENDED GUIDELINE FOR IRON & STEEL SECTOR …

Blast Furnace Process Flow: Different Sections of Blast Furnace: i) Furnace Proper: In the Furnace Hot Metal (along with slag) is processed from the raw materials. ii) Cast House: In the Cast House, Hot Metal & slag are tapped from the Furnace tap hole and after flowing through a system of refractory lined troughs / …

Process Flow Chart of Sand Blasting - Textile Flowchart

Sand blasting is a mechanical process of creating fading affect/ old-looking effect on heavy garments such as denim, canvas, twill, sometimes corduroy by the action of aluminum oxide which looks like sand.It is popular nowadays. Sandblasting technique is based on blasting an abrasive material in granular, powdered, or another form through a nozzle at very high speed and pressure onto specific ...

Drill And Blast Best Practices Part One: Bench Preparation ...

The safety and quality of a drilling and blasting process is the result of a series of well-performed steps, which I would prefer calling 'procedures'. A procedure is a set of mandatory activities to be executed every time, regardless of any variables such as blast size, bench position or rush required for the operation.