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Cold Box Perlite Unloading and Refilling

Posted: Sun Jan 21, 2018 10:00 am
by md.jahangiralam
I am experiencing Cold Box Perlite Unloading and Refilling to facilitate leak detection and repairing of piping leakage inside of cold box.

Seeking experience sharing from the group members with similar job experience.

Thanks

Re: Cold Box Perlite Unloading and Refilling

Posted: Sat Feb 10, 2018 2:19 pm
by md.jahangiralam
Successfully completed the project. Total 13 days required. One leak detected and welded. Now operating smoothly.

Re: Cold Box Perlite Unloading and Refilling

Posted: Sun Feb 11, 2018 3:56 am
by ahsansarfraz
Great to hear.
we too had it in past. could you brief about your cold box desing as our cold box was of CFbrown design and it leaked from inlet core. aluminum welding was done.

Re: Cold Box Perlite Unloading and Refilling

Posted: Tue Jun 05, 2018 5:11 pm
by PKS1964
Is this unloading and refilling done by your self or called some expert. Can you share procedure for unloading and refilling of perlite.
Have you changed Perlite or same used, how much thickness maintained of perlite. While leak what was cold box DP.

Re: Cold Box Perlite Unloading and Refilling

Posted: Mon Mar 04, 2019 4:50 pm
by md.jahangiralam
@ahsansarfraz, Cold Box manufacturer is Costain Engineering, England. And also aluminium was welding carried out.

@PKS1964, Perlite unloading and refilling was carried out by ourselves, but welding was carried out by external welder of Fives Cryogene, France. Regarding procedure perlite unloading and refilling is very usual only process isolation and purging/handover is important which will vary depending on process configuration. Perlite condition was good after being used for 25 years. Only partial make up is provided.