Sampling and sample preparation systems and equipment for dry solids in laboratory applications comprise a comprehensive solution designed to ensure statistical representativeness, proper homogenization, and controlled reduction of bulk mineral samples.
The process begins with the collection of increments using point sampling probes for materials stored in stockpiles, hoppers, or containers, enabling the assessment of both vertical and horizontal heterogeneity within the lot. Homogenization is then performed using Y-type tumble mixers, whose diffusion and gravity-driven convection principles ensure high uniformity with minimal fines generation and low wear, even when handling highly abrasive materials.
Representative sample reduction is carried out using enclosed static riffle splitters (Jones-type), operating by gravity through alternating chutes calibrated according to the top particle size, minimizing fines loss and dust emissions. For higher levels of precision and repeatability, the JKL DRL-5 rotary sample divider performs continuous and unbiased sample division, reducing the Fundamental Sampling Error (FSE) and eliminating bias associated with manual methods.
A key differentiator is that all equipment is fully engineered and manufactured by JKL under strict mechanical, structural, and process engineering criteria specifically designed for abrasive mineral applications. In addition, systems can be audited and validated in accordance with international ISO sampling standards (such as ISO 13909, ISO 3082, and ISO 12743), as well as industry best practices based on the Theory of Sampling (TOS), incorporating advanced technology to ensure accuracy, repeatability, and traceability in metallurgical laboratories, processing plants, and quality control programs.
