English FAQ

8/3/2019 English FAQ

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FAQ Frenquently Asked Questions

About PYROBLAST-C® technology

PYROBLAST-C is the next generation system for rock and concrete fragmentation to be used in

zones where the use of construction machinery or explosives is not possible and/or is really

impractical, such as populated areas, near housing and roads, where dense vehicular traffic

exists, as well as in zones without geological stability where tunnel or slope construction is

required.

PYROBLAST-C® technology is patented and obtained a National Acknowledgment from

CONACYT (Consejo Nacional de Ciencia y Tecnología), because its innovative new mining

extractive method. Currently PYROBLAST-C® technology is been used in Panama, Chile, Brazil

and Mexico.

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How does PYROBLAST-C® technology is composed?

PYROBLAST-C® technology is it composed by:

eFUSE system for electronic sequential activation with programmable variable delays, which

allows better vibration control, higher operative performance, and circuits verification to ensure

the effective activation of bores, loads computes, an unlimited quantity of possible delays, all

this keeping high operative security levels.

PYROBLAST-C® fragmentation device. Fragmentation elements made from high security

pyrotechnical propellants. The devices are designed in different energy quantity and

dimensions, so they can have a wider range of applications. The fragmentation device can be

used in any environment, in horizontal and vertical bores, as well as in jobs where the

fragmentation has to be made upward.

Engineering. Technical support to do calculations for obtaining loads, drilling patterns, delays

and periods for minimizing vibration, through the blastcalculator software or by any other

communication media directly with our engineering team.

How does it work?

This new fragmentation technology with lower VOD than conventional explosives, only operates

on tension instead both tension and compression, such feature makes this high technology an

excellent option to be used in slope stabilization, as well as in unstable areas in underground

mining.

For both rock and concrete fragmentation, specific drilling it is necessary. Once this has beendone, the fragmentation device it is inserted in the bottom of the bore, and after that it is sealed,

so the energy can be used completely. The drilling pattern is based on calculus, made for

specialized engineers, and on the job conditions; including the rock type, environment and final

fragmentation size, in order to have high fragmentation control.

Subsequently, all the electrical connections are done, and through the eFUSE system, the

fragmentation devices are safely activated.

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Is PYROBLAST-C an explosive?

Is not an explosive. The technology is based on a pyrotechnical component Classification 1.4S

UN.

Differences between PYROBLAST-C® and conventional explosives.

What are their applications?

Conventional Explosives PYROBLAST-C® Technology

Vibration level High Imperceptible

Noise level High Null

Flying particles Incontrollable Minimum

Using it near from sensible areas No Yes

Toxic gases Yes No

Over fracturing Yes No

Shock wave Yes No

Ignition based on PETN Yes No

Biodegradable No Yes

Safe distance for activation >500 meters >30 meters

Allows disabling No Yes

Description

Water works Trenching, swimming pool, cesspool, cistern

Roads Expansion and construction of roads, slope stabilization, pre-split,

post-split, over size rocks, mudslide.

Civil Engineering Building demolition, concrete demolition, foundation, land leveling.

Mining Post-split, pre-split, tunneling, works near from infrastructures andservices, quarry and marble production, Boulders.

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PYROBLAST-C® is very useful in zones with high sensitivity to vibration, machinery, equipment,

electric and hydraulic infrastructure areas. The system is pretty reliable for works on geologically

no stable areas, even where we have ambient restrictions.

Where the system can be used?

The PYROBLAST-C® technology has been specially designed to be used in sensible zones,

such as in populated areas, near from housing and roads with high vehicular activity, as well as

in zones which not geological stability is present and the tunnel or slope construction is

required, and where ambient restrictions are present.

Who can use PYROBLAST-C® technology?

The requirements for using this system are defined by the specific legislation for each. This

technology is classified as 1.4S UN.

How much time is required for acquiring permits to use it?

The requirements for using this system are defined by the specific legislation for each. This

technology is classified as 1.4S UN.

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What is eFUSE?

It is an integral electronic sequential ignition system that is able to work according to

programmable delay periods of high reliability.

General features

Dimensions: 40.6 x 33 x 17.4 cm (L x W xD)

Touch interface

Friendly and intuitive user interface

Updatable firmware

Specially designed for J-tek Igniter

Maximum load (J-tek): 110 Ohms.

Language: English, Spanish.

Users Control

User levels: Administrator and operator.

Password

Maximum number of users: 5 for both kind of user.

Activations

Load of credits for activations through web page.

USB PC- eFUSE direct communication.

Number of allow activations before reloading credits: 150.

SafetyeFUSE access method: RF/ID password

128 bits security system

The system does not allow or stops the activation when:

-Short-circuit is detected

-Any of the circuits to be activated has been opened up by the activation of an extern and

accidental action (such as the movement of rock). For demolition mode this does not apply.

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Ignition sequences

Free memory space for storage up to 10 different sequences.

Maximum delay between channels for activation: 0 to 60 milliseconds

Demolition mode. Minimum delay between channels 0 milliseconds. Simultaneous activation of

channels.

Executing Ignition

Dynamic Impedance/Connectivity Verification

Maximum Output Energy: 52.8 J (Software control)

Maximum Total Output Energy: 422.4 J (Software control)

Support of series of several eFUSE system connection. It allows increase the capacity of

igniters to be activated in an event.

Manual emergency stop.

Programming delay range for starting an activation sequence: 30 to 3,600 seconds.

Battery control

Built-in intelligent charger.

Continuous battery level verification.

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eFUSE is the most advanced technology for electronic ignition. It is a highly accurate, secure

and reliable system; there is not another system like this on its field. The way eFUSE works is

unique in the market and at the same time it is economically competitive. This system has been

designed to achieve the best performance in rock and concrete fragmentation works. The

electronic ignition system has an accuracy of ±16.125µs in the delays, which are not

accumulative. For example, if an 8ms delay is programmed, the resultant delay would be of

8mS ± 16.125µs; if an 3600s is programmed, the resultant delay would be of 3600s ± 16.125µs.

This unique high technology ignition system, allows evacuating the activation zones with safety,

because of its exact and accurate timing. Which can be programmed according the conditions

of the work is been done.

Although each channel is able to ignite a load of 110 Ohms (approximately 44 elements), the

system itself, allows to ignite an infinite number of elements. Its control system allows achieving

delay periods with a resolution of 1ms, however it is possible to programming delay equals to

0ms, which means simultaneous activation of two or more channels.

eFUSE integrates the highest quality standards, going beyond the mining and construction

industry requirements; its security elements are wonderfully practical and functional, since they

verify that eFUSE to be in appropriate work conditions (circuits, products, not over loaded,

permission for activating), in an impressive reliable way. In other words, eFUSE is able to

automatically check that the number of elements to activate to be adequate for having a secureactivation, verify that the connections are correctly made and that the system is now ready to

work.

Besides it is unique on its type, its firmware is updatable, which allows it being always at the

forefront, at the same time it is easy to use and has a high 128 bit security encryption system

that eliminates completely the possibility of using eFUSE without the correspondent

authorization.

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The differences in using the PYROBLAST-C® electronic ignition system and the conventional

pyrotechnical ignition are very clear:

PYROBLAST-C® technology is a complete system of solutions in rock and concrete

fragmentation: Innovative, safe and reliable.

If you have any comments, please don’t hesitate to contact us.

Conventional pyrotechnicalsystemPYROBLAST-C® electronicsystem

Number of available delays 16 Unlimited

Delay periods between times Fix Variable (programmable)

Drilling patterns Limited by number of periods Unlimited

Vibration control Limited. With resonance. Without resonance.

Timing Accuracy ranges so variable. Minimum ranges, without

depending of theenvironment.

Verification of connections Not possible Verifiable

Verification of activation Not possible Verifiable

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English FAQ