Free Fall Arrestors

[coker squirrel]

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? 

[Mitchell Moloney]

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
                                    Side View

Drill steel support beam

Rubber guide
 
 
 
 
 
 
 
 
 
 
 
 
·         Locate 3 or 4 @ different levels.
·         Problem can be alleviated are tightened and tensioned properly.
 

[Claus Graf]

The same rubber sway breaker design was installed at the Petrozuata Upgrader in Venezuela and the guys there tell me it works great.
 
 

[ted pivo]

Just for an information  purpose Ruhrpumpens free fall arrestors grab the derrick rails they use NO CABLES

[Aaron McDonald]

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.

[Claus Graf]

Welcome to the coking.local forum.
 
Please keep us updated on the sway breaker operation.
 
One question: What grease do you use in the cable grippers ?
 
Regards, CG

[ted pivo]

These sway breakers are they home made or what vendor supplies them

[Anonymous]

can u provide me a sketch of sway breakers or suggested vendor at shubhangupta@gmail.com

[Anonymous]

Thanks guys, I just about lost it looknig for this.

[Author]

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