June 21, 2006 at 11:44 pm #4188
We have experienced many problems with free fall arrestors. Cables become loose and hang up causing freying of the cable and eventual cable breaks. I have heard that there is some sort of mechanism for keeping the cables on a free fall arrestor system from becoming loose and blowing in the breeze. Does anyone have any details about this?
June 22, 2006 at 8:48 am #7586
You can use sway breakers ……..
· Cable can become wrapped around beans in high winds not allowing drill to go up or down.
· Have new simple sway-breaker design from Jeremy Krauthammer at the Hovensa DCU. He uses a rubber guide to hold cables in place, made from used conveyor belts. These are placed at about three locations along the steel structure where the cables are located.
I cannot post a sketch since I cannot get in to gif or jpg, and txt loses the sketch
Cable passing through rubber guide
Drill steel support beam
· Locate 3 or 4 @ different levels.
· Problem can be alleviated are tightened and tensioned properly.
July 19, 2007 at 3:26 pm #7339
The same rubber sway breaker design was installed at the Petrozuata Upgrader in Venezuela and the guys there tell me it works great.
September 20, 2007 at 7:35 pm #7272
Just for an information purpose Ruhrpumpens free fall arrestors grab the derrick rails they use NO CABLES
June 1, 2008 at 7:45 am #6815
We have a 6 coker operation in part of our facility and have sway breakers on the newest two. They have worked very well, while we have experienced hang-ups and issues with the other four. We are now proceeding with install on the remaining.
June 5, 2008 at 11:24 am #6808
Welcome to the coking.com forum.
Please keep us updated on the sway breaker operation.
One question: What grease do you use in the cable grippers ?
July 24, 2008 at 2:14 pm #6696
These sway breakers are they home made or what vendor supplies them
July 14, 2012 at 9:07 am #4610
can u provide me a sketch of sway breakers or suggested vendor at email@example.com
December 23, 2012 at 8:07 pm #4552
Thanks guys, I just about lost it looknig for this.
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