Development of ultra low density refractory granules (uldrg) for kilns
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Development of ultra low density refractory granules (uldrg) for kilns
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| Creator |
Sharma, L K
Karmakar, D P |
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| Subject |
Refractories
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| Description |
Kiln is a basic need of ceramic industry which contributes 30-60% of the product cost through thermal energy depending on the type of product. There are so many parameters like Low Thermal Mass Kiln Car Furniture, Low Thermal Mass Kiln Car Base, Hue Gas Analysis for Efficient Fuel Burning, Preventing Heat Losses through kiln Walls, Optimum Wares loading Density on Kiln Cars, Reducing Kiln Cars pushing time & Optimization of Firing Cycles etc. for energy saving. Research was carried out on development of Ultra Low Density Refractory Granules to reduce the dead mass of the Kiln Cars Base. Refractory granules of bulk density 0.63 gm/cm(3) with apparent porosity in the range of 60-70% were developed by using Indian raw materials by extrusion process. Granules having whiteness of approx 90%, life estimate of 8-10 years, Packing Density (PD) of 0.50 gm/cm(3) . Service temperature of the ULDRG is 1250 degrees C and Thermal Conductivity is 0.20 to 0.25 W/m.K at 1000 degrees C. This ULDRG is very much eco friendly and does not have any health or safety issues like ceramic fiber. 2000 kilograms ULDRG was produced and used in regular kiln cars of the Tunnel & shuttle kilns as a part of Industrial research. It contributed to 18-20% mass reduction with fuel saving of 10-15%.
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| Publisher |
American Ceramic Society
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| Date |
2019
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| Type |
Book Section
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/4673/1/sharma2019.pdf
Sharma, L K and Karmakar, D P (2019) Development of ultra low density refractory granules (uldrg) for kilns. In: Proceedings of the 42nd International Conference On Advanced Ceramics and Composites. Ceramic Engineering and Science Proceedings, 39 (3). American Ceramic Society, pp. 53-58. ISBN 978-1-119-54330-5 |
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| Relation |
http://cgcri.csircentral.net/4673/
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