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The company is committed to ongoing research and development to ensure maximum performance of its processes. As part of this drive for continuous improvement, Colores Cerámicos chose to optimize the performance of the bag filter.
Sourcing a SolutionDonaldson Membranes® was asked to inspect the filter, which contains 176 bags with a filtration area of 180 m2 manufactured from conventional glazed surface polyester needlefelt. The online pulse jet cleaning system handles a dust load of 60 g/m3, and the air/cloth ratio is 0.83 m/min. The operating temperature is 120-130°C with a peak of 133°C.
Jordi Ezquerro, Donaldson Membranes’ sales manager for Iberia, proposed to replace the previously installed bags with filter bags manufactured from polyester needlefelt with a Tetratex® expanded polytetrafluoroethylene (ePTFE) membrane surface. Tetratex high-performance laminates offer superior dust cake release, low pressure drop (see Figure 1), higher air flow, and high efficiency (see Figure 2), making them ideal for filtration and many other applications. Additional benefits include:
- Increased bag life and less frequent cleaning, delivering lower maintenance costs
- Reduced operational costs, leading to increased profitability
- Near zero emissions, meeting required regulatory standards
Improved PerformanceThe filter bags, manufactured by Spanish bag maker ACMA, are still working to desired performance levels after more than 24 months in operation, a decided improvement in bag life compared with that of the previous bags. Pressure drop is maintained below 150 mm w.c. with emission levels well below the required 20 mg/Nm3.
“We are extremely satisfied with the performance of the #6214 filter bags,” says Angel Badenas, production manager at Colores Cerámicos. “The results after more than 24 months have completely fulfilled expectations from both a lifetime and performance point of view.”
For more information, contact Donaldson Membranes, 7 The Parks, Newton Le Willows WA12 0JQ, England; (44) 01942-711711; fax (44) 01942-711571; e-mail firstname.lastname@example.org; or visit www.donaldson.com.
Colores Cerámicos’ website is located at www.atc-colores.com.