Bauxite Ore Pile Screening and Washing System Project

The Dazhuyuan bauxite mine has a designed annual production capacity of 1 million tons. Due to the high mud content and low ore grade, a modern screening and washing system with an annual processing capacity of 1 million tons (1 million tons of screening capacity) is required (including a 500,000 tons washing capacity). This system will enable efficient bauxite sorting, washing, and dewatering, improving ore quality and resource utilization, meeting the mine’s production capacity requirements, and providing qualified products for subsequent processing or sales.

Ore Properties
1. Screening and Washing Material: Bauxite
2. Ore Water Content: 5.0%
3. Ore Density: 2.70-3.0 t/m³
4. Ore Bulk Density: 1.80 t/m³
5. Ore Mohs Hardness: 6.5-7

Process Flow

This process utilizes dry screening followed by water washing. Specifically, a stepped bar screen is used for the screening stage. Its core feature is an open bar screen design oriented in the material flow direction, with a vibrating device to prevent blockage. A vigorous scrubbing method is employed for the water washing stage. Traditional spiral ore washers are modified by replacing some of the continuous blades with intermittent blades. This provides intermittent agitation during the washing process, replacing the continuous pushing motion of the material with a stirring push motion. This promotes movement between the material particles, increasing mutual friction and achieving thorough cleaning.

For many years, our company has focused on the mineral sand screening, washing, and wastewater treatment industries. All of our products are independently developed, some of which are domestic firsts. The water screening, washing, and wastewater treatment production lines we construct are all custom-built for our clients. We provide one-stop services, from product R&D and design, material selection, and manufacturing to on-site planning and layout, installation, commissioning, training, and after-sales service.