EVRAZ Miners Switch to Chamber & Pillar Technology

UrBC, Yekaterinburg, May 24, 2016. Miners from Mezhegeiugol Mine (a part of EVRAZ Holding) in Tyva switched to chamber-and-pillar mining, EVRAZ Holding Siberia’s PR Department reports.

The new technology means that the coal bed is worked by sections, that is, chambers separated from one another with pillars supporting the roof. It takes three teams, each of them working in two sections at a time, to do the preparation work. While a combine machine is hewing coal in extraction chamber 1, miners do the walling in extraction chamber 2. This means that no equipment has to wait idle and labor productivity is increased.

The coal bed is located around a hundred meters under the ground, with the three teams producing up to 2,000,000 kg of coal a day and around 60,000,000 kg of valuable coke coal a month. In some respects, such as naturally low ash, sulfur, and phosphorus contest and increased washability, Mezhegeiugol coal is much better than any of its counterparts found elsewhere in Russia.


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