Packaged Explosives

Powdery Emulsion Explosive

Powdery emulsion explosives are a type of ammonium nitrate-based explosive formed by dispersing fine droplets of a low-water-content oxidizer solution or molten oxidizer into a continuous oil phase solution composed of specific carbonaceous fuels and emulsifying agents. Through processes like high-shear emulsification, spray drying, spin flash drying, or cooling and solidification followed by pulverization, this water-in-oil type emulsion matrix is transformed into a powdered form.

Rock-type powdery emulsion explosive is widely used for rock blasting and other construction blasting operations, particularly suitable for blasting projects without gas or mine dust hazards.

Coal mine permissible powdery emulsion explosive is suitable for blasting projects with gas or mine dust hazards.

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Key Benefits

The explosive offers excellent explosive performance with low bulk density, good charge coupling, and strong work capacity, making it suitable for various medium to hard rock blasting operations.

The explosive is resistant to moisture absorption and caking during its storage period, ensuring safety and stability.

The explosive combines the properties of powdery and colloidal explosives, offering good free-flowing property and suitability for various blasthole diameters, with some water resistance.

Technical Properties

Type Property	Powdery Emulsion Explosive
Type Property	Rock-Type	Grade II Coal Mine Permissible Type	Grade III Coal Mine Permissible Type
Cartridge Density (g/cm³)	0.85-0.95	0.85-1.00	0.85-1.00
Sympathetic Detonation Distance (cm)	≥5	≥5	≥5
Brisance (mm)	≥13	≥10	≥10
VOD (m/s)	≥3,400	≥3,000	≥2,800
Work Capacity (ml)	≥220	≥190	≥190
Toxic Gas Emission After Explosion (L/kg)	≤70	≤50	≤50
Combustible Gas Safety (g)	-	≥180	≥400
Deflagration Resistance	-	Pass	Pass

Packaging

Packaging Type: Carton or woven bags (bulk)
Product Specifications: Cartridge size Φ32 mm, 150 g (carton); 25 kg/bag, 30 kg/bag, 40 kg/bag (bulk)

Need Custom Formulations?

Our R&D team can develop custom explosive formulations tailored to your
specific geological and operational requirements.

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