Сучасні очисні комбайни для відпрацювання тонких пластів

Abstract

Розглянуто розроблені ДП «Дондіпровуглемаш» шнекові очисні комбайни для відпрацювання тонких пластів та напрямки їх удосконалення за результатами експлуатації. According to Ukrainian Energy Strategy by 2030, the amount of coal mining should increase up to 115 – 130 million tonn a year over the nearest 10-20 years. Therefore, one of the priorities of the coal industry is economically efficient thin seam mining, whose industrial reserves exceed 70% of the total coal reserves in Ukraine. Raising the amount of coal mining calls for refinement of purifying equipment efficiency along with reducing the amount of mining waste getting to the surface. Currently, since coal mining equipment characteristics do not correspond to the coal height, 10 million tonn of mining waste a year are ruined and get to the surface. Solution of the outlined problems requires providing coalfaces with modern high-performance equipment, first of all, with reliable energy saving purifying mining machines which complete the workload of 1.5 – 5 thousand tonn per day without country rock coal-cutting for 0.9 – 1.2 m height coal. The following problems should be solved using an up-to-date highly efficient purifying machine for thin seam mining due to avoiding country rock coal-cutting: 1. Increasing the safety of mining beds with ignescent and explosive country rock due to reducing the possibility of friction sparkling, which is especially relevant owing to the growth of methane emission in the coalface caused by the increased pace of mining and shifting mining areas to a greater depth. 2. Reducing environmental pollution due to decreasing the amount of waste that gets to the surface and gets into concentrating mill dumps after processing. 3. Energy saving due to lower electricity expenses for mining, transporting, processing and shipping to mining waste dumps.