#TIVAR #linings #hopper
Hoppers behave differently from liquid-filled vessels. While liquids exert pressure linearly with depth, bulk solids rely on friction along the wall to reduce stress — as depth increases, the head becomes constant, following the Janssen Equation. The transition area between the conical and cylindrical sections is particularly critical, with stresses varying based on storage, filling, and discharging conditions. @Greg Mehos recently discussed this topic in a recent post, shedding light on the significant wall stress at this location, which can result in hopper failures when not properly designed.
In this article, we discuss a recent inquiry we received about a hopper experiencing thinning of the metal below the inlet due to erosion caused by a preferential flow pattern during the filling process. Given the severity of the mechanical integrity issue in the hopper, we advised against patchwork solutions, as they can lead to catastrophic failures. Instead, we recommended a comprehensive evaluation of the hopper’s capability and collaborated with external consultants to determine the best path forward. This approach ensures the long-term reliability and safety of the system.
At Lawrence Industries, we pride ourselves on being your trusted System TIVAR partner, equipped with specialized knowledge in addressing bulk solids flow problems. We offer personalized support tailored to your specific challenges. Whether you require guidance in liner design, installation, or optimizing bulk flow, our experts are here to assist you. Contact us today at sales@lawrenceindustriesnow.com or call us at 260-432-9693 for a customized solution to your bulk flow issues.
The picture is referenced from the following site: PowderProcess.net
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