#FABRICSCHANGINGINDUSTRY

“Installing Albarrie’s drum seal takes about one third of the time as compared to traditional rubber seals. It was much easier and it is great quality. So far we are very happy with it”

“Albarrie has been a great company to work with. Their customer service is exceptional, they are very timely in delivering parts and are always there to help when you have a problem. We are very happy we switched to Albarrie for all of our baghouse filtering, and more, needs.”

SPECS:

Time in Service: Approximately 2 years

Service Life Compared to Traditional Rubber Seal: Almost double so far (around RAP collar)

Average run time: Average of 10 hours per day, 5 days per week

Machine: Gencor Ultradrum. 9’8” diameter

Location: Seal is located around in front of the RAP collar

I’m writing to you in follow up to the High Efficiency Cleaning service that you performed on B boiler baghouse. Prior to having the cleaning done, we were experiencing a high differential pressure drop across B boiler baghouse unit. This was as a result of a temperature control issue at the Spray Drier Absorber, which is situated immediately ahead of the baghouse. As a result of the temperature control issue, the ash coming out of the Spray Drier Absorber had gotten moist enough to form an agglomerated cake on the filter bags and a buildup of ash that constricted the air flow at the baghouse inlet manifold. The resultant airflow restriction required us to reduce load on B boiler initially by 5% and eventually up to 15% of full load capacity in order to maintain proper combustion within the boiler furnace.

We took B boiler off line to clean the baghouse inlet manifold. At this time, we asked for Albarrie to provide their expertise to assess the condition of the baghouse and to assist us to come up with a reason as to why we were experiencing this problem. Mr. Lee Noddin of Albarrie Environmental Services was willing to get into the internals of the baghouse to do a thorough investigation of both the characteristics of the ash buildup and a condition assessment of the bags. His input was very valuable in helping us determine what our problem was. Unfortunately the condition assessment of the bags indicated that the existing reverse pulse cleaning system would not remove the agglomerated filter cake on the bags themselves. At this point, Mr. Noddin suggested that we try the HEC cleaning system. This system was untried on refuse incinerators in the US, but had been shown to be successful in its application in Europe, where the technology was developed. Where we had been operating with a baghouse differential pressure drop of 13+ inches of water at reduced load, Albarrie felt confident that we could regain a performance of 8 to 9 inches of pressure drop across the baghouse at full load operation. The time required to clean the baghouse using the HEC system was proposed to be 5 to 6 hours. The alternative that we faced was to purchase 750 new filter bags four years ahead of the scheduled replacement life and take 18 to 24 hours to perform the changeout. The decision was made to try the HEC cleaning system.

On August 1st, B boiler was taken off line and Albarrie Environmental Services performed the HEC cleaning service on the baghouse. They were able to meet the proposed deadline of 5 to 6 hours. Moreover, the differential pressure drop across the baghouse was reduced to approximately 9 inches of water at full load operation. Over time this value has creeped up to 10 inches of pressure drop, which is historically the norm for this unit. The reverse pulse cleaning system on the baghouse is effective once again and we are able to maintain between 9 and 10 inches of pressure drop across the baghouse at full load operation. We are very pleased with the results of the HEC cleaning system. I would recommend this system for other refuse incinerators where a condition assessment of the bags would indicate positive results. Thanks again for the help.

I wanted to pass along our gratitude and appreciation to Albarrie for the quality of the Albarrie Field Representatives. Both gentlemen are directly contributing to the installation of the system by helping organizing, cutting, placing, and bonding the materials as well as supporting the contractors since arriving on site. I believe we were all expecting them to just be on site to ensure that the system is installed to design but they have done so much more than. I have heard nothing but compliments for these gentlemen from the contractors supervision and TCE Inspection and wanted to ensure this feedback made its way back to you.

I am pleased to report that we are extremely satisfied with the performance of your compressed, high temperature rollers on our 9 inch diameter extrusion line. The rollers on our Press #2 have now been in use for one year and are showing very little sign of significant wear. They have reduced damage from the handling system and graphite marks substantially.

The performance of these rollers on our Press #2 has led us to install the same system on our two smaller presses. The two sample rollers (P.P.O.) are holding up just as well as the others so far. They were installed in an area of high heat and wear and I see no visible difference in wear or any damage to the extrusions at this time.

Based on the performance of these rollers we currently have in use, I have no difficulty recommending the use of these rollers in leadout and runout tables for extrusion presses.