Double-Rotor Impact Crusher
Applications
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Fine crushing of aggregates for mine paste backfill
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Processing of gangue, shale, and other brittle mine solid waste
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Particle-size conditioning for underground filling materials
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Aggregate preparation and standardized production lines
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Crushing applications involving relatively wet or sticky materials
Key Features
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Dual-Rotor Impact Crushing
Two counter-rotating crushing rotors provide continuous impact crushing and material reduction. The crushing process helps improve particle-size distribution, which can contribute to better packing density in prepared backfill materials.
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Screenless Crushing Design
The screenless configuration eliminates the need for a conventional discharge screen and helps reduce the risk of material accumulation and blockage when processing wet or muddy gangue.
This makes the crusher particularly useful in underground mining environments where material moisture can vary.
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High-Chromium Wear Parts
High-chromium alloy hammers provide enhanced resistance to abrasive materials such as gangue and aggregates. Wear components can be replaced when required, helping simplify maintenance and minimize downtime.
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Efficient Continuous Processing
The crusher is designed for continuous material processing with a relatively low energy requirement per unit of material processed, supporting stable operation in large-scale backfill preparation plants.
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Role in a Mine Backfill System
The Double-Rotor Impact Crusher can be installed after primary crushing to further reduce material size and improve particle gradation.
A typical material preparation process may include:
Raw Gangue → Jaw Crusher → Double-Rotor Impact Crusher → Screening / Separation → Batching & Mixing → Backfill Pumping
The actual process configuration depends on the properties of the raw material and the requirements of the backfill recipe.
Custom Configuration
GOLDDRILL can configure the crusher according to:
● Feed material characteristics
● Feed size
● Required discharge size
● Processing capacity
● Material moisture
● Installation conditions
● Overall backfill plant configuration
Why Choose GOLDDRILL?
GOLDDRILL is a mining equipment manufacturer and complete backfill solution provider. We provide custom crushing equipment and integrated material preparation solutions for underground mining operations.
Our factory capabilities support custom equipment configurations, OEM manufacturing, and system integration, allowing the crusher to be matched with upstream and downstream equipment in the backfill process.
FAQ
It is mainly used for fine crushing and particle-size conditioning of materials such as gangue, aggregates, shale, and other brittle solid materials.
The dual-rotor configuration provides continuous impact crushing and helps achieve a more uniform discharge size and particle distribution.
The screenless design helps reduce the risk of blockage when processing relatively wet or muddy materials. Actual suitability depends on the material moisture and characteristics.
High-chromium alloy wear materials can be used to improve resistance to abrasion from gangue and aggregate materials.
Yes. Configuration can be adjusted according to capacity, feed size, discharge requirements, material characteristics, and installation conditions.
It is generally used in the material preparation stage, often after primary crushing and before subsequent screening, separation, batching, or mixing.
