Authors: N.P. Ovchinnikov

Title of the article: The experience of operation of sectional pumps of the main drainage of the underground mine «Udachny»

Year: 2017, Issue: 3, Pages: 154-161

Branch of knowledge: Mechanical engineering and machine science

Index UDK: 621.671.22

DOI: -

Abstract: Underground development of kimberlitic pipes by AK “Alrosa” is inextricably linked with large quantities of water inflow in the mine, hence, without the use of a sufficient number of drainage plants the process of production of diamond-containing ores becomes more difficult and, which comes first, unsafe. Thus, we can conclude that improving the efficiency of pumping equipment is one of the priority tasks for the management of AK “Alrosa” GOKs. This article provides detailed information about the efficiency of the pumps of the main drainage of the underground mine “Udachny”. It has been found out that the factory-made pumps JSH 200 have low efficiency when working with the mine water with a high content of mechanical impurities, because in these conditions, the expensive parts such as bearings and face mechanical seals fail prematurely. The analysis of representative statistical material shows that at present frequent failure of the unit hydraulic balancing device is the main reason for the low operating time of the pumps of the main drainage of the underground mine “Udachny” to overhaul and to failures. It is revealed that the most frequent defect of the unit balancing device is hydroabrasive wear of its parts, such as rings and disks of the balancing device. At Udachninsky GOK of “Alrosa” due to high cost of original balancing device parts, the worn parts of the available balancing devices are subject to restoration and repeated use, which explains their low reliability.

Key words: sectional pump vibration-based diagnostics bearings balancing device hydroabrasive wear low reliability

CITE DOWNLOAD