Authors: N.G.O. Valiev, I.N. Sandrigailo, S.A. Arefyev, Chebotarev

Title of the article: Evaluation of the effectiveness of the use of non-electric initiation systems in controlling the seismic impact of explosions at coal mines

Year: 2021, Issue: 6, Pages: 76-84

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

Index UDK: 622.271.3

DOI: 10.26730/1999-4125-2021-6-76-84

Abstract: Today, many mining enterprises in Russia, Australia, Germany, India, Canada, China, the USA, Japan and a number of other countries of the world use quarry combines that destroy rocks without the use of drilling and blasting operations. The use of explosion-free technology in marble deposits will prevent the destruction of a productive array of rocks developed for blocks. In this regard, it is advisable to consider the possibility of using combines in the development of marble deposits to provide raw materials for the production of dry building mixes, putty, paint products, drilling fluids. In 2020, work was carried out at the Koelginsky marble deposit, the largest in Russia, using a Vermeer mining combine of the T1255 model. As a result of measurements carried out at various sites of the quarry, the most appropriate operating modes for rock milling were determined. The rational milling depth was 0.1-0.35 m, and the working speed of the combine during milling was 2-4. 5 m / min. The dependence of the effective productivity of the Vermeer T1255 combine harvester on the main determining factors is obtained: the speed of movement during milling, the depth of milling and the length of the worked area. The schemes of operation of a quarry combine in combination with a wheel loader, a conveyor, as well as a self-propelled scraper are proposed.

Key words: Explosion-free technology marble deposits quarry harvester milling speed milling depth productivity working schemes wheel loader conveyor self-propelled scraper

Receiving date: 15.09.2021

Approval date: 05.12.2021

Publication date: 24.12.2021

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