[bobby gawlik]

I have to agree that feed stock changes, channeling are contributing factors, but I feel proper quenching is the key to preventing these “blowouts” We quench our drums a little different than most as follows: Switch 1am, seperate 1:30am, 4am take out of scrubber or when drum fill indicators are over coke bed, 4:30am to 5:00am approx drain the drum with less than 1.5psi and under 200 degrees on top TI. Also keeping over 30 psi on drum while quenching also helps.

[bobby gawlik]

I agreee with Mitch for the the isolation valves on the cutting deck especially with multiple drums. For jet pump isolation manual valve would be fine. But do not understand about the operator resistance because of the high pressure on the line. There shouldn’t be any pressure on the line….. Nice try operators

[bobby gawlik]

We used to have the Hahn and Clay unheading device on our drums and now have Delta Valves on top and bottom. As for as maintainence we have cleaned our hydraulic tank and coolant tank once in over 2 years. Adjusted the packing on the rams once and that is all we have had to do to our system. And if you are management the safety of your personel outways the cost of these valves. I have 20 years experience operating cokers and after we installed these valves my life expectancy increased dramatically.

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