Bulk-loading kerf machine

BULK-LOADING KERF MACHINE (EN: cutter-loader; DE: Schramlademaschine; FR: haveuse-chargeuse; ES: rozadora cargadora; RU: врубово-навалочная машина) is the mining machine, which is purposed for the creation of the kerf (kerf slot) within the seam of the coal, and for the subsequent mechanical loading of the coal, which has been broken from the massif, onto the stope conveyor. The machine has been created for the clearing stopes with the very strong and tough coals within the flat seams, with the thickness of 0.7-2.5 metres, with the stable roofs, where the usage of the extracting combined cutting-loading machines was impossible or ineffective. Within the bulk-loading kerf machine, there have been unified the functions of the kerf and bulk-loading machines, which were used earlier. The bulk-loading kerf machines were created on the basis of the kerf machines, the structure of the cutting bars of which tolerated the replacement of the certain cutters with the loading blades, which, together with the cutters, are performing the bulk-loading of the loosened coal onto the stope conveyor.

Initially, the bulk-loading kerf machines were produced with the straight bar (VPM-1), during the work of which there remained the virgin pillars of the coal, which have been subsequently excavated manually. For the elimination of this disadvantage, on the basis of the GTK-35, KMP-2, and KMP-3 kerf machines, there have been created the bulk-loading kerf machines with the curved bar, which has been equipped with the double-hinged cutting chain (VNM-1, VNMGT; V-7, UDPT-4). The bulk-loading kerf machines have lost their practical significance for the extraction of the coal after the emergence of the extracting combined cutting-loading machines, which are able to break the strong and tough coals.