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Fireblock Blast

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Coal mining requires a blast hole to be drilled down into the core, prior to blasting. Many blast holes reach temperatures of well over 100 °C, and are too hot and unsafe to load with explosives. If the temperatures are greater than 56 °C, the blast hole has to be abandoned and not charged.

FIREBLOCK BLAST is a ready-to-use cooling system that can be inserted into blast holes in open cast coal mines. The system comes in 2,0 m joinable sections. These sections are joined and inserted into blast holes with sizes of 170 – 200 mm. Once inserted, the temperature in the blast hole is reduced to a level where an explosive can safely be inserted into a cavity up to 132 mm in the centre of the cooling system, after which the hole can be blasted. The result? Mines that have been unable to be mined for decades, are now being opened up!

Please contact us for additional information on both the product and training.

Louis Koekemoer
sales@fireblock.co.za
+27 (72) 952 3892

2.0m Connection Pipes manufactured for easy installation and transport. Pipes are joined in sections with a unique connection specially manufactured to keep the pipes secure for the length of the blast hole.

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2.0m Connection Pipes manufactured for easy installation and transport. Pipes are joined in sections with a unique connection specially manufactured to keep the pipes secure for the length of the blast hole.

Initial temperature was 90 degrees. After blast pipes inserted in hot hole temperature was reduced to 26.9 degrees which was maintained for over 3 and a half hours.

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Initial temperature was 90 degrees. After blast pipes inserted in hot hole temperature was reduced to 26.9 degrees which was maintained for over 3 and a half hours.

FIREBLOCK Blast pipe inserted into a hot hole before blasting.

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FIREBLOCK Blast pipe inserted into a hot hole before blasting.

Contineous testing of FIREBLOCK Blast in the use of hot holes.

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Contineous testing of FIREBLOCK Blast in the use of hot holes.

Even after 3.5 hours the temperature of the blast hole remained constant giving sufficient time for blasting to proceed safety.

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Even after 3.5 hours the temperature of the blast hole remained constant giving sufficient time for blasting to proceed safety.

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