Tag Archives: Tomasz Śledź

JSW launches Komatsu Bolter Miner at Budryk coal mine

JSW, this week, started operating its Bolter Miner 12CM30 at the Budryk coal mine, in Ornontowice, Poland, one of the deepest hard coal mines in the world.

The first bolter miner of its kind in the Polish mining industry, according to JSW, the Bolter Miner was developed by a consortium including  JSW Innowacje, JSW, the Central Mining Institute and Komatsu Mining (Joy Global).

Last year, the system successfully passed all the start-up tests and, in September, the machine was handed over to JSW. On November 12, it started drilling the “Bw –1N badawczy” exploration roadway in seam 401 at the underground mine.

Adam Domżoł, Head of Mining at the Budryk mine and Coordinator of the ‘Independent Rockbolt Support’ project, said: “We have before us nearly 2,000 m of excavation and bolting of the new roadway using the new technology and new machinery. After the research and development stage is completed, the complex will allow us to achieve a much greater progress in roadway excavation than any solutions that were previously used in the Polish mining sector.”

The Bolter Miner was purchased by JSW Innowacje, a subsidiary of Jastrzębska Spółka Węglowa, in 2018 as part of the ‘Independent Rockbolt Support’ project. The miner was manufactured in the US and arrived in Poland in early August 2019.

The machine was transported to the Polish seat of Komatsu in Tychy and, there, the miner was assembled and underwent all the necessary tests. In the meantime, the crew currently operating the bolter miner was trained. Then the machine was disassembled again, transported to the Budryk mine and hoisted down to the specially-prepared assembly chamber, where the bolter miner was re-assembled and prepared for operation.

According to the manufacturer, the maximum speed of work is 27 t/min of excavated material, which translates into lower cost advances, according to JSW.

Tomasz Śledź, Vice-President of the JSW Management Board for Technical Matters, said: “The rockbolting technology has been widely used globally: in Australia, South Africa, Russia and in the Czech Republic. It is much cheaper than frame supports and equally as safe.

“The cost of preparatory works in the mines of Jastrzębska Spółka Węglowa represents a significant portion of coal mining costs, so the company is seeking more efficient solutions. The use of rockbolting is an opportunity to reduce our expenditures incurred in the mining preparation process.”

JSW subsidiary delivers first bottom scraper conveyor

Jastrzębskie Zakłady Remontowe (JZW), a JSW Group company, has delivered its first in-house designed and manufactured bottom scraper conveyor.

This development sees JZR join an exclusive group of original equipment manufacturers of mining machinery and equipment.

JSW said: “It’s a great step towards development, especially because so far JZR dealt only with overhaul and modernisation of mining equipment.”

The PPJZR–850 bottom scraper conveyor was officially presented in the JZR production hall. The presentation was attended by the management board and directors of Jastrzębska Spółka Węglowa mines.

The bottom scraper conveyor makes it possible to collect transported material from the armoured face conveyor and transport it to another collecting device, eg a belt conveyor. The first conveyor is being delivered to the Borynia Section of JSW’s KWK Borynia-Zofiówka-Jastrzębie coal mine, in Poland, this week. The PPJZR–850 scraper conveyor comprises: KUJZR–4z coal crusher, UPJZR–KP1200 pushing device and the PTJZR–SZL1 line turning station.

All this equipment has been designed and manufactured entirely by JZR using top quality materials with much higher durability than the existing materials used in mining, JSW said. A number of innovative solutions were used in this equipment, according to the company. “They will improve the reliability and the safety conditions of the employees during the mining.”

Rafał Rychter, President of the JZR Management Board, said: “It’s a great day for us. After nine months of hard work and commitment of many people – constructors, technologists and production employees – we can present our creation.”

Tomasz Śledź, Vice-President of the JSW Management Board for technical matters, said: “This is only the beginning of the process of unification of longwall systems we intend to carry out in all our mines.”

JZR is already working on unification of further coal haulage devices, including PSJZR armoured face conveyors, KSJZR longwall crushers, UPJZR–SNZ belt tail pieces and PTJZR belt conveyors. In parallel with these efforts, an investment project is being carried out in the Suszec municipality where, next year, JZR plans to launch the production of new elements for the machinery and equipment.