Optimizing Performance of Magnesia-Spinel Brick Used at Cement Rotary Kiln

Abstract:

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Using high pure magnesia and magnesia-spinel as the main raw material, keeping the same quantity of spinel, specimens were made with different spinel size distribution (≤0.044mm, 1-0mm, 2-1mm, 3-2mm and 3-1mm). Dextrin and brine are the binder. Specimens were dried at the temperature of 110°C for 24 hours, sintered at the temperature of 1680°C holding 8 hours in a tunnel kiln. The properties and microstructure of the specimens were analyzed. The results are shown that the addition of spinel with grain size of 3-1mm improves sintering of magnesia-spinel brick, with the thermal shock resistance reaching 18 cycles, the cold crushing strength reaching 54 MPa, improving the comprehensive performance of the magnesia-spinel brick.

Info:

Periodical:

Advanced Materials Research (Volumes 250-253)

Edited by:

Guangfan Li, Yong Huang and Chaohe Chen

Pages:

588-594

DOI:

10.4028/www.scientific.net/AMR.250-253.588

Citation:

D. Wang et al., "Optimizing Performance of Magnesia-Spinel Brick Used at Cement Rotary Kiln", Advanced Materials Research, Vols. 250-253, pp. 588-594, 2011

Online since:

May 2011

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Price:

$35.00

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