Wyoming surface coal mine determined the time to start planning for future mine progression was before the long term mine plan took them closer to public county road located adjacent to their permit boundary. The mine used a 40/60 HANFO augured blend with good results but sporadic post blast fumes. The mine struggled with past results when introducing new technology that didn’t deliver as promised. Possible post-blast fumes as the mine advanced closer to the county roads was an area of concern with the chance of fumes travelling in this direction and sometime creating a blast delay. The goal of reducing post blast fumes has been part of blasting focused continuous improvement projects in the past but renewed focus has made this a higher priority. Most technology advances occur when the right people with the right need place value in trying technology with hope that a better blasting practice will result.

This underground nickel mine in the Midwest United States is relatively young with only a few years of production blasting. The operation is employing a sublevel stope mining technique. The operator purchases Dyno TITAN® RU emulsion and electronic detonators for blasting. The customer was experiencing poor blast results over a substantial period of time. When the customer first contacted DynoConsult® for assistance, the concern was the under-breaking of the ore which left valuable material along the ribs. At that time the mine engineers were looking for guidance on the delay times they should be using to improve the recovery of ore. During the site visit by DynoConsult, it was also discovered that there were a few instances of benches and bridges being left in the stope after mucking. In one stope it was estimated that over $1 million worth of ore was left unrecoverable in the stope. It was also revealed during the site visit that there were issues related to tight digging of the muckpile even though the fragmentation was adequate.

After speaking with Dyno Nobel, the mine decided to implement BlastWeb®, a centralised blasting system that is specifically designed for use in underground mining operations. BlastWeb allows reliable remote initiation of development, production and stope blasting from a safe and controlled location on the surface. The blast areas can be completely evacuated as no-one is required to be underground for the blasting. In addition to the obvious safety benefits, the other main benefit of the system at this mine is a reduction in the re-entry time. After the implementation of BlastWeb, a comparison was made of the blast completion times before and after its introduction. It was determined that centralised blasting reduced the blast completion time, on average, by 10 minutes. The implementation of Dyno Nobel’s Centralised Blasting System supports both the safety of the mine employees during blasting and an increase in production time.

A review of seismic data from both blasts showed a twenty percent reduction in vibration using the timing solution developed using DYNO 42 compared to competitor timing sequence.

Coal Case Study

The primary benefit from the TITAN emulsion technology is being able to note on the post blast reports that no postblast NOx fumes were present. Additional benefits include increased water resistance, increased actual energy yield verses theoretical value, increased product sensitivity resulting in high order detonation, ability to control density, redistribution of energy, increased detonation pressure, same cost per loaded foot, greater fragmentation versus cast movement, and allowing emulsion to be loaded to a lower density in highwall row resulting in the same pounds stretched to a greater height. Success measurements in the overburden truck/shovel blasts included consistent productivity (bucket fill times and bucket volumes) even in harder material located below the sandy strata, reduced post blast NOx fumes based on fume classification chart, few shovel operator complaints, and equal or reduced drill and blast budget. Seventeen blasts were completed without NOx fumes. The pounds per loaded foot was reduced from 51.5 with 40/60 HANFO to 43.1-47.1 range loading TITAN XL 1000. The average difference lbs/ft = 12.36% when 7.6% was needed for cost neutral. Stemming height was reduced from 22 ft to 20 feet to improve surface material displacement. Success measurements in the coal blasts included no roll crusher plugs from slabs, improved shovel production through uniform fragmentation, and equal or reduced drill and blast budget. Ten blasts were completed over afive-week period with no post blast fumes. There was good material movement, uniform fragmentation and generally no complaints or negative comments from shovel operators. Average difference lbs/ft = 11.98% when 4.5% was needed for cost neutral. Pounds per loaded foot averaged 45.33 compared to 51.5 with HANFO.

Dyno Nobel’s Titan ∆E 1000 was trialed over a period of four (4) months at AngloGold Ashanti's Cripple Creek & Victor Gold Mining Co. (CC&V) in Cripple Creek, Colorado. Performance of the Titan ∆E 1000 product was measured against typically loaded production blasts of similar size, in similar geology. Blast designs (drill pattern and blast hole sequence) for the performance and baseline blasts were not altered during the trial, and all blasts, except for one, were initiated using Dyno Nobel’s DigiShot® Plus electronic initiation system. Measured results confirmed that significant value in productivity, cost and blast performance were delivered. The mine reduced its overall powder factor by 18%, realized an 8% increase in shovel productivity in both waste and ore, and in the case of ore, experienced no reduction in crusher throughput. Additionally, they completely eliminated visible NOx after blast fumes in even the wettest areas of the pit.

Using Differential Energy, Dyno Nobel was able to reduce the number of boulders at a quarry without adding more blast holes.

This operation was undergoing a complete review of its blasting practices and blast designs in order to ensure the most optimized results were being achieved.

As a new mine starting up development, this gold mine in Northern Ontario used much of the blasted rock for infrastructure in building up roads and construction pads.

The use of SHA (Signature Hole Analysis) and electronic detonators allowed the mine to dial in optimum timing sequences regardless of the number of holes per delay, resulting in reduced vibration and better digging rates allowing for faster removal of overburden.

A fragmentation model developed in-house by Dyno Nobel was employed to model the fragmentation that would result from changes in the various blast design parameters.

Project goal is to remove a small section of bench and creating a final wall catch bench without disturbing neighboring homes within 750 feet of blast area.

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Worldclass Machinery Solutions is your trusted source for high-quality aftermarket spare parts for mining equipment. As a manufacturer, we specialize in components for drill rigs, rock drills, and drifters. With a vast inventory, competitive pricing, and global shipping, we deliver reliable solutions that keep your operations running efficiently. Check our brochure for more information.

You don’t want to lose sleep over dewatering. In fact, you probably don’t want to think about it at all. That’s why we’ve created Flygt Pareo, a solution that lets you add intelligence to most Flygt dewatering pumps. Now your pumps can think for themselves and solve common issues automatically. It’s not just convenient – you can reduce pump wear by 70% as well as halving maintenance costs.

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Castech International is present worldwide and will accompany you with your various projects. From design to delivery, we offer many different services such as : casting, assembly, welding, machining and painting. We listen to you in order to create a custom solution specific to your needs. Our products are designed for unbeatable performances, even under the most challenging conditions. With our partnership, you will also benefit from our 24/7 technical support. With Castech International, you will have a product designed with you, for you at the most competitive price.

We are born with the desire to offer our clients unique solutions for all their needs, from the conception of an idea to the completion of their projects. We proudly unite five companies: Metallurgy Castech, Plessitech, M.E.W., Metal Coleraine and Plessitech Express. Our group is unique in that its organization is vertically integrated. The company offers design, engineering, parts casting, machining, assembly, painting, transport, installation and a 24/7 technical service. Castech Plessitech Group always acts as a subcontractor but we are also a real development partner in the manufacturing of more complex parts as well as for the optimization of products from a mechanical and metallurgical point of view. The performance and expertise of the products offered to our customers are our great strengths wich distinguish us in the global market in the mining, aluminum, pulp and paper, energy and industrial sectors. Our company places a particular emphasis on the conformity of its products in order to develop and maintain a relationship of trust with all of our clients. Our goal is not only to offer you parts that meet your most stringent requirements at competitive prices but also to ensure fast delivery times.

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Design-Manufactured & Installed Total Solution Vince Hagan stationary batch plants set the industry standard for reliability and longevity. Our plants address your needs for robust storage, a uniform mix, and the high-production demands of both large and small projects. We will custom design your plant to meet your site layout needs while considering seismic and high-wind requirements for your location. Plus, our exclusive smart plant technology is pushing our plants to the forefront of the industry with an app that monitors sensors on vital plant components and can predict possible downtime. It also manages weekly/monthly maintenance schedules. TRUSTED INSTALL BY MANUFACTURER Installation of your equipment is just as critical as the purchase. And with over 60 years of turnkey installation services, Vince Hagan is your trusted industry partner. All installations include comprehensive operational and maintenance training to assure your equipment is running safely and efficiently. RETURN ON INVESTMENT Vince Hagan plants are legendary for value because of their proven dependability, high production, and longevity. When it comes to making this significant investment, you can rest assured that the center of your production relies on equipment built to last for a generation. Go factory direct, and cut out the middleman. We help you maximize your profits instead of paying for corporate overhead and shareholder dividends.

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Mined raw materials travel along extensive transport routes. Ores, raw salt feeds, waste rock, and overburden pass through various steps from mine to mill (mining, material transfers, comminution, mineral processing, hydrometallurgy, filtration and tailings disposal). Our systems ensure smooth, economical, and environmentally friendly processing at each stage of materials handling. From mining to product shipping we have the solutions you need.

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