Corrosion caused by exposure to mineral acids is a significant challenge in the metal mining industry. Many mining processes accelerate the deterioration of equipment, as water mixed with mineral acids, bases, or salts can quickly damage components. This degradation leads to a much shorter lifespan for mining equipment, resulting in increased maintenance costs and potential safety risks.
The combined effects of corrosion and abrasion can cause materials like aluminum to deteriorate in as little as eight to ten months, instead of lasting for years. This rapid wear and tear can cause equipment failure, creating hazardous situations—especially if safety devices, such as pull rope switches on conveyor belts, are compromised.
Increased maintenance requirements and unexpected downtime further contribute to lost productivity and higher costs, as more frequent component replacements are necessary.
The Solution: Sitec Pull Rope Switches in Customized Stainless Steel Housings
To ensure safety in open conveyor systems, it is essential to install pull rope switches that can stop the machine in case of an emergency. Traditionally, these switches come in aluminum or plastic housings. However, in highly corrosive environments, common in many mining operations, these materials are prone to rapid deterioration.
Spohn and Burkhardt Sicherheitstechnik GmbH, a leading German manufacturer of safety equipment for the global mining industry, has developed pull rope switches with stainless steel housings and levers designed to withstand even the harshest conditions.
With years of expertise in the mining and metals industry, we carefully consider the specific chemical and acid composition at each mine site. All stainless steel components are tailored to match the atmosphere of the intended application. For example, a mine site with high levels of hydrochloric acid and an operating temperature between +20°C to +50°C would require stainless steel grade AISI 304 (W-Nr. 1.4301). For mining environments with significant sulfuric acid exposure and temperatures ranging from +20°C to +70°C, AISI 317 L (W-Nr. 1.4438) would be recommended.
By providing customized solutions, we can significantly extend the lifespan of equipment, reducing downtime and unplanned maintenance costs.
For more information please contact Spohn + Burkhardt North America.
