DBPapers
DOI: 10.5593/SGEM2014/B13/S3.074

STUDY OF 2K-52MU CUTTING AND LOADING MACHINE IN FACES WITH INDIVIDUAL SUPPORT IN LONEA MINE

I. Dumitrescu, V. Itu, B. Cozma
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-09-4 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 3, 567-574 pp

ABSTRACT
The necessity of mechanization of coal exploitation in Jiu Valley mines, in the current economic crisis, involved adaptation of existing equipments to new conditions of refurnishing of certain faces. Thus, within the refurnishing program of a frontal face, with individual support in Lonea Mining Plant, the 2K-52MU cutting and loading machine was used, which was available in Livezeni Mining Plant. Besides the problem of adaptation of the machine to TR-5 scraper conveyer, the study of the stability of the machine on the conveyer in the condition of a face with individual supports was necessary. To this end, the stability coefficients of the machine in cutting and loading of the coal on the conveyer, and even blocking the drum in the face were determined. The study was made for 250 kN maximum traction force of the machine and the variation of the face inclination angle in the range of 0 and 30° for three cases of movement of the machine, towards the actuating station, towards the turning station and with both drums down for clearing the face.

Keywords: machine, conveyer, stability