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Bulk emulsion developed for dynamic water

The above image depicts two workers maiking use of the BME Innovex 300D

COUNTERING CHALLENGES To counter the challenges of dynamic water, the Innovex 300D offers an enhanced resistance to dynamic water to reduce the likelihood of misfires

2nd May 2025

     

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In line with its continuous innovation of blasting solutions, blasting solutions and explosives company BME has developed Innovex 300D – a high-strength bulk emulsion explosive for challenging surface mining conditions including dynamic water.

Dynamic water, explains BME strategic partnerships global manager Dr Rakhi Pathak, is a common issue for surface mines and leads to various operational and environmental challenges.

“When there is excessive water flow in and around blast holes, emulsion run-off often occurs due to cracks or fissures in fractured geology. This is particularly problematic in conditions such as damaged ground, fractured or weathered rocks, sensitive geology and acidic mine conditions,” she says.

These conditions exacerbate operational difficulties and environmental hazards, as they can, for instance, lead to misfires and incomplete detonation, as well as the possible leaching of nitrates into the environment, adds Pathak.

Innovex 300D is also highly resistant to free ammonia, which is commonly found in mine water and tailings dams; it also resists acidic sulphate soil conditions, such as rocks containing pyrite that can produce sulphuric acid.

“Dynamic water can also lead to higher levels of nitrous oxide fumes being generated. This results from the dampening of explosives, which can cause incomplete detonation, as well as from the oxygen balance and chemical reaction being affected by the presence of water,” she elaborates.

To counter these challenges, BME’s Innovex 300D offers enhanced resistance to dynamic water, reducing the likelihood of misfires.

The product features an adjustable rheology, making it suitable for highly friable and fractured geological conditions.

“Our solution allows the viscosity and flow behaviour of the emulsion to be adjusted to meet any blasting requirements. This ability to adjust the rheology makes a valuable contribution to optimising the material performance, improving handling, ensuring safety and achieving the desired blasting outcome,” says Pathak.

BME’s blasting system includes a mobile manufacturing unit equipped with an in-line monitoring device for real-time viscosity adjustments and monitoring.

Further, Innovex 300D supports the company’s commitment to the environment, and enhances the sustainability efforts of BME customers, reports BME technology and marketing GM Nishen Hariparsad.

“Preventing environmental contamination is non-negotiable among responsible mining companies, and our solutions support the industry’s ongoing progress in this regard,” he says.

Hariparsad says reducing nitrate leaching is an important aspect of this imperative.

He notes that BME is well known as an innovator in emulsion explosives and invests heavily in ongoing research and development (R&D).

The company has developed considerable in-house expertise and capability to conduct the various stages of R&D to commercialise its advanced technologies.

“We have built a strong technical foundation from which to optimise our formulations, including the necessary testing, regulatory compliance, customer feedback and new application requirements,” notes Hariparsad, adding that BME responds to market needs and trends by developing continuous improvements.

“The system comprises a high-strength bulk emulsion matrix specifically formulated with rheology modifiers, surface-active agents and a unique blend of diluent oils and emulsifiers,” says Pathak.

This formulation, she adds, is the basis for BME to provide customers with an adjustable and instantaneous bulk emulsion rheology suited for their toughest blasting conditions.

Edited by Donna Slater
Features Deputy Editor and Chief Photographer

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