The solvent extraction electro-winning process (SX-EW) is a hydrometallurgical means of extracting, purifying, and concentrating metals. SX-EW has continued to demonstrate successful use in effectively extracting and recovering copper from low grade and oxide ores. As a result, SX-EW has quickly become a staple in Continue reading →
This week’s photo highlights a girth gear run-out procedure in action. A black strap (pictured) is mounted along the gear’s teeth. A dial indicator follows the strap’s path, and measures the tip of the teeth along the strap. This procedure reveals the amount of wear Continue reading →
Today’s photo highlights a refurbished tire and trunnion wheel. Rotary drum tires and trunnion wheels can become worn over time, resulting in a variety of unwanted characteristics such as pitting, spalling and timing marks. If the wear is left untreated, the weight of the drum Continue reading →
As a booming global population and emerging economies put pressure on existing resources, and high grade ores become a thing of the past, mining companies are looking for technologies that will allow them to economically recover target materials, namely metals, from low grade ore sources. Continue reading →
A pneumatic hammer knocking system is designed to control material build-up inside of a rotary drum. The hammer is mounted above a strike plate on the drum, and delivers an adjustable amount of force as set by the operator. This force “knocks” the drum and Continue reading →
This week’s post highlights a series of images: rotary tire wear patterns. A rotary drum tire is a support structure for the drum, and provides a place for pressure to be absorbed. As with any piece of equipment, they must be inspected and serviced, if Continue reading →
This week’s photo highlights a rotary dryer’s direct drive assembly, the arrangement which causes the drum to rotate. The direct drive assembly is ideal for small to medium size drums running up to 75 horsepower. Here’s how it looks: A shaft is mounted to a Continue reading →
This week’s photo highlights FEECO’s custom rotary drums, from our early days, to present day. The image on the left was taken in August 1961, ten years after our founding, and the image on the right was photographed in May, 2016. FEECO has custom designed Continue reading →
Copper is a versatile metal used in many of the products that modern civilization relies on, from electronics to infrastructure. For decades, smelting has been the primary approach to copper extraction. Although this method has proven to be effective for high grade sulfide ores, it Continue reading →
Industrial drying may seem like a straightforward process, but in reality, many factors must be considered to create the most effective drying solution that maximizes heat transfer efficiency. The material to be processed, lifter design and pattern should all be taken into account when Continue reading →
