Authors: L.I. Kantovich, I.N. Klementyeva, D.A. Kuziev

Title of the article: Design and technological capabilities of modern cutter-loaders: overview

Year: 2020, Issue: 2, Pages: 26-41

Branch of knowledge: 25.00.22 Geotechnology (underground, open and construction)

Index UDK: 622.005.5.001

DOI: 10.26730/2618-7434-2020-2-26-41

Abstract: Solid fuel reserves in Europe, located at a depth of less than 1,200 m, are equivalent to Europe's global energy consumption for more than 500 years. The advantage of coal as the basis for energy is that it lies in the ground in a concentrated form. If all the world's energy resources are equal to 100%, coal accounts for 70%, oil for 18%, gas for 7% and hydropower for 5%.
The existing technologies of underground coal mining make it possible to extract coal practically without disturbing the surface of the earth and its ecology. In the future, there will be no alternative to underground mining of coking coal.
In the next 10-15 years, coal mining will be carried out on thin, medium and thick seams, where the combine method of mining will become prevailing both in terms of the volume of mining and the quality of coal produced.
The underground method of coal mining is currently focused on the use of longwall set of equipment, in which a cutter-loader is a machine mechanically separating coal from the seam, crushing it to pieces of transportable size and pumping the coal onto a downhole conveyor.
The efficiency and cost-effectiveness of underground coal mining depend on the perfect design of the shearer. About 70% of the energy consumed for coal mining in the face is related to the work of the shearer.
The basic designs of cutter-loaders with auger executive bodies, their features, prospects of development of the clearing equipment for coal mines of Russia are analyzed in this article. The practical examples confirming optimality of the symmetric scheme of an arrangement of executive bodies on the ends of the machine frame are considered.

Key words: cutter-loader auger executive body symmetrical scheme of extraction bodies underground mining mining machines

Receiving date: 27.04.2020

Publication date: 05.10.2020

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