Perlite is an acidic lava erupted by a volcanic eruption, a vitreous rock formed by rapid cooling,[1] so named for its pearl fracture structure. Perlite mines include perlite, obsidian and turpentine. The difference between the three is that perlite has circular arc-shaped cracks formed by condensation, called perlite structure, with a water content of 2~6%;Density is 2.2~2.4g/cm3; Moh's hardness is 5.5-7;Turpentine rock has a unique turpentine luster, with a water content of 6~10%; Obsidian has a vitreous luster and shell-like fractures, and the water content is generally less than 2%.
Perlite is processed by grinding. The production line consists of jaw crusher, cone crusher, Raymond mill, elevator, vibrating feeder, classifier and piping.
Crushing
Raw perlite goes through two-stage crushing to fully separate usable materials and prepare qualified feed for grinding.
Screening
Crushed materials are screened to control particle size, protecting the mill and improving product quality.
Grinding
Screened materials are sent to the silo, then fed into the Raymond mill for fine grinding.
Classification & Delivery
Powder is classified. Unqualified material is re-ground, while qualified perlite powder is stored in the finished silo and delivered for packaging.
To cater to specific material characteristics and meet customer requirements, SBM provides a range of grinding mills, including the MTM, MTW, LM, LUM, and SCM series.
To ensure environmentally friendly production, various measures are implemented, including the adoption of dust removers and sealing at each component.
SBM's solutions are highly automated, characterized by the utilization of a centralized control platform. This allows for the monitoring and effective control of the entire production process, resulting in significant savings in labor costs.
For each customer, a dedicated engineer is assigned to oversee their project, ensuring prompt resolution of any questions or issues that may arise. Additionally, our 24/7 online service is readily available to provide assistance at any time.
