Research of Lime-Mediated Sewage Sludge Use as Metallurgy Sintering Ingredients in the Sinter Industry

Abstract:

Article Preview

This paper discusses the feasibility of the lime-mediated sewage sludge replace the fuels and flux as metallurgy ingredients, the influence of lime-mediated sewage sludge used in metallurgy sintering process to the sinter performance. The calorific value of the sludge was 4.67MJ/kg. The X-ray diffraction (XRD) showed that the main existing form of Calcium in the lime-mediated sewage sludge is CaCO3 at 550°C, and almost is CaO at 1100°C. This provided the basis to the sludge used as sintering ingredients. Sintering cup experiment results showed that Lime dry sludge have a positive impact on sintering, the sinter quality indexes are improved. When sludge ratio is 3.00%, the vertical sintering burning rate is 21.28mm/min, the yield is 72.62%, the utilization coefficient is 1.455T/m2•h, fuel consumption from 65.65kg/T fall to 59.16kg/T, then concluded that the flux and fuel ratio replaced by lime-mediated sewage sludge were 43.3%, 13.3% respectively.

Info:

Periodical:

Advanced Materials Research (Volumes 581-582)

Edited by:

Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen

Pages:

888-894

Citation:

Y. Xing et al., "Research of Lime-Mediated Sewage Sludge Use as Metallurgy Sintering Ingredients in the Sinter Industry", Advanced Materials Research, Vols. 581-582, pp. 888-894, 2012

Online since:

October 2012

Export:

Price:

$38.00

[1] Dai xiao hu, China urban sludge disposal status and thinking, J. Water Supply and drainage. 2 (2012) 1-5.

[2] Li xue-song, Zhang feng, Liu yu, The sludge treatment and disposal technology progress and development trend, J. Tianjin construction technology, 4 (2009)41-43.

[3] Tang xiao hui, Zhao li. The sludge treatment at home and abroad, J. Environment science and management, 3 (2005) 68-70.

[4] North J M, Becker J G, Seagren E A, Methods for quantifying lime incorporation into dewatered sludge I: Beach-scale evalution , J. Environ Eng, 134 (2008), 750-761.

DOI: https://doi.org/10.1061/(asce)0733-9372(2008)134:9(750)

[5] Samaras P, Papadimitriou C A, Haritou I, Investigation of sewage sludge stabilization potential by the addition of fly ash and lime, J. Journal of Hazardous Materials, 154 (1–3) (2008): 1052-1059.

DOI: https://doi.org/10.1016/j.jhazmat.2007.11.012

[6] Chen tong qing, the recycling of iron dust in the production of sinter, J. Bao-steel technology, 3 (1992): 46-47.

[7] Zhang an yuan, The metallurgical industry waste residue treatment technology and using technology achievements assembly, second ed, The metallurgical industry press, Bei Jing , (1983).

[8] Peng pei hui, Comprehensive utilization of metallurgy dust in Wu-steel sintering plant, J. Sintering and Pelletizing, 1 (1999) 38-40.