Methods to Find out Spontaneous Heating Susceptibility of Indian Coals

Jump To References Section

Authors

  • S. K. Ray
     Central Institute of Mining & Fuel Research, Barwa Road, Dhanbad, 826 001 ,IN
  • D. C. Panigrahi
     Director, Indian School of Mines, Dhanbad, 826 004 ,IN

Keywords:

Spontaneous Heating, Crossing Point Temperature, Wet Oxidation Potential Method, Proximate and Ultimate Analyses, Multivariate Analysis.

Abstract

The paper describes two methods to determine spontaneous heating susceptibility of Indian coals. Crossing point temperature (CPT), a thermal method, widely used in Indian coal industry is described. Further, a new electro-chemical method called wet oxidation potential (WOP) technique is introduced for determining the susceptibility of coal to spontaneous combustion. Altogether 78 coal samples collected from thirteen different mining companies spreading over most of the Indian coalfields have been used for this experimental investigation. Experiments have also been carried out for proximate and ultimate analyses of coals. Susceptibility indices obtained from CPT method and WOP method were correlated with important intrinsic parameters of coal by multivariate analysis. A comparison has been made between correlation coefficients obtained from CPT and WOP analysis. Results of WOP method are validated with CPT.

Downloads

Download data is not yet available.

Downloads

Published

2022-10-18

How to Cite

Ray, S. K., & Panigrahi, D. C. (2022). Methods to Find out Spontaneous Heating Susceptibility of Indian Coals. Journal of Mines, Metals and Fuels, 64(9), 461–467. Retrieved from https://informaticsjournals.com/index.php/jmmf/article/view/31592

Issue

Volume 64, Issue 9, September 2016

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

 

References

Nandy, D. K., Banerjee, D. D. and Chakravorty, R. N. (1972): “Application of crossing point temperature for determining the spontaneous characteristics of coals.” Journal of Mines, Metals and Fuels, February, pp 41-48.

Feng, K. K., Chakravarty, R. N. and Cochrane, T. S. (1973): “Spontaneous combustion – a coal mining hazard.” CIM Bulletin, October, pp 75-84.

Mahadevan, V. and Ramlu, M. A. (1985): “Fire risk rating of coal mines due to spontaneous heating.” Journal of Mines, Metals & Fuels, August, pp 357-362.

Gouws, M. J. and Wade, L. (1989): “The self-heating liability of coal: prediction based on composite indices.” Mining Science and Technology 9:81-85.

Gouws, M. J., Gibbon, G. J., Wade, L.and Phillips, H. R.(1991): “An adiabatic apparatus to establish the spontaneous combustion propensity of coal.” Mining Science and Technology 13:417-422.

Gouws, M. J. and Knoetze, T. P. (1995): “Coal self-heating and explosibility.” The Journal of South African Institute of Mining & Metallurgy, Jan-Feb:37-43.

Banerjee, S. C. (2000): Prevention and Combating Mine Fires. Coal catogorisation vis-à-vis spontaneous fire risk. Special Indian Edition, Oxford & IBH Publishing Co. Pvt. Ltd., pp 67-113.

Panigrahi, D. C., Ojha, A., Saxena, N. C. and Kejriwal, B. K. (1997): A study of coal oxygen interaction by using Russian U-index and its correlation with basic constituents of coal with particular reference to Jharia coalfield. In Proc. 27th ICSMRI, New Delhi, India; I: 493-499.

Beamish, B. B., Barakat, M. A., and George, J. D. (2001): “Spontaneous-combustion propensity of New Zealand coals under adiabatic conditions.” International Journal of Coal Geology 45:217-224.

Behera, P. and Mohanty, G. (2009): “Peroxy complex and crossing point temperature of Talcher coals - An adducer to assess the spontaneous heating combustibility character.” Journal of Scientific Research 1:55-60.

Tarafdar, M. N., Guha, D. (1989): “Application of wet oxidation processes for the assessment of the spontaneous heating of coal.” Fuel 68:315-317.

Panigrahi, D. C., Sahu, H. B., Udayabhanu, G., Saxena, V. K. (2004): “Wet oxidation method for predicting the spontaneous heating susceptibility of Indian coals.” Coal Mining Technology and Management, June-Aug: 13-21.

Ray, Santosh Kumar, Panigrahi, Durga Charan, Varma, Atul Kumar. (2014): “An electro-chemical method for determining the susceptibility of Indian coals to spontaneous heating.” International Journal of Coal Geology, 128-129:68-80.

Ray, Santosh Kumar. (2013): Development and standardization of a method for studying the susceptibility of coal to spontaneous heating. Unpublished Ph.D. Thesis, Indian School of Mines, Dhanbad, India.

Peters, W. C. (1978): Exploration and Mining Geology. John Wiley and Sons Inc, New York, 1978, pp 416-425.

IS (Indian Standard): 436. (1964): Methods of sampling of coal and coke. pp 13.

miningandblasting.files.wordpress.com /2009/09/spontaneous_combustion _guide lines.pdf

IS (Indian Standard): 1350 Part - I. (1969): Methods of test for coal and coke – proximate analysis, pp 5-18.

ASTM D 5373-93. Standard test methods for instrumental determination of carbon, hydrogen, and nitrogen in laboratory samples of coal and cake. pp 493-496.