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Oxidizer

Successful Media Change Out of a 50KSCFM Durr RTO

A picture may be worth 1,000 words, but this one is worth nearly 12,000 blocks of Monolith, which is the number of blocks we handled over the course of the weekend. RHZ performed a media replacement on a 50KSCFM Durr Two-Tower RTO, and the job went so well we finished a day early.

The Results: The RTO's delta-p dropped from 24"WC to 9"WC, the main draft fan's online operating speed dropped from 55Hz to 36Hz, and thermal efficiency now exceeds 95%.

Trio of Good News: Two Engineering Tests and a rebuild

This chamber was rebuilt and relinedTwo successful Engineering Tests and a Beautiful Relining: The first site had failed its previous EPA test, with an outlet concentration exceeding 6,000PPM. RHZ helped with engineering and controls modifications. The subsequent test found the average outlet VOC concentration dropped from over 6,000PPM to just over 1PPM. We also lowered the combustion chamber temperature by over 50F, which will save them over $7,000/year.  

RHZ also wrote a specialized routine which averaged the chamber temperature for each test.  Due to RHZ's skill at PID tuning, the average chamber temperature was within 0.3F of the PID's set point temperature.  The 2nd site had its engineering test yesterday. We prepped this 20 year old unit for the test a few weeks ago. It achieved a 99.97% destruction rate efficiency. This confirms RHZ's ability to achieve exceptional test results from equipment that has been in the field for decades.  The third site had falling insulation. The walls of the combustion chamber had been ravaged by years of neglect, and an entire section had to be rebuilt. This delayed our total scope of work by only Two Days.