Faced with the inherent characteristics of river pebble raw materials, specifically their high hardness and strong abrasiveness, a major green building materials project established a core principle during the design phase: “prioritizing process adaptability.” Recently, this production line was successfully commissioned; it not only consistently produces high-quality aggregates in various specifications but also achieves an excellent balance between production capacity and environmental protection.
To address the specific processing difficulties associated with river pebbles, the project opted against conventional dry processing methods, instead innovatively introducing a wet-process technology for producing high-quality manufactured sand. This approach precisely resolved two critical pain points: First, by utilizing water washing for dust suppression, it controlled dust generation—a common issue during the crushing of high-hardness materials—at the very source, resulting in a significant improvement in the plant’s environmental conditions. Second, by leveraging wet classification and particle shaping techniques, it substantially enhanced the cleanliness, particle shape regularity, and gradation continuity of the finished sand and gravel products, yielding aggregate quality that surpasses industry standards.
The entire production line features a compact and intensive layout, characterized by a streamlined and highly efficient workflow. Operational data indicates that the line maintains a stable hourly output of 800 to 850 tons, consistently producing high-quality aggregates in four distinct specifications: 0–5 mm, 5–10 mm, 10–20 mm, and 20–30 mm. Notably, the 0–5 mm manufactured sand features a controllable fineness modulus and low powder content, fully meeting the stringent sand requirements for high-grade concrete applications.
Client feedback confirms that the wet processing technology not only effectively extends the service life of wear-resistant components—such as crushing walls and liner plates—(ensuring stable operation despite the highly abrasive nature of river pebbles) but also achieves a lower electricity consumption per ton of output compared to equivalent dry processing lines, thereby delivering significant overall economic benefits.
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