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When it comes to service for reagent preparation systems, one name tops the list: STT Enviro Corp. STT was able to solve several issues with our system with one retrofit- engineered specifically to address our unique challenges. They made the entire process simple for our operators- from investigating the issues to engineering the retrofit to the final install –their professionalism and expertise made us comfortable and confident in the process. So comfortable in fact that we’ve hired them to retrofit a second system for us.
STT’s client has three steam assisted gravity drainage (SAGD) facilities in Alberta, each equipped with a Lime and Magnesium Oxide (MgO) chemical handling system. The oldest of the three systems, was supplied by STT Enviro Corp in 2007. The two newer systems, were supplied by a discount equipment supplier in 2011 and 2014.
In 2014, the client contacted STT in order to help return their oldest Lime and MgO system (originally supplied by STT) to its original condition. STT installed new rotary valves and upgraded the feeders to incorporate the most up to date technology and a decade’s worth of design improvements. Following the successful completion of this work, our client asked STT's Systems Specialists to review their two newer systems.
These two facilities were experiencing significant cost overruns due to ongoing maintenance issues specifically:
In addition there was concern that a failure in the flexible chute between the bin activator and feed equipment could engulf the silo skirt with dry Lime or MgO.
STT took a systematic approach to understanding the design limitations of their system and developed a System Retrofit to solve the design, mechanical and safety issues and bring the system up to the design capacity.
The following improvements were made:
Photo 2: A view of the installed retrofit including the new piping for the aeration bottom.