{"product_id":"a-retractable-guidance-system-for-mine-shaft-hoists-9781032128979","title":"A Retractable Guidance System for Mine Shaft Hoists","description":"\u003cp\u003e\u003c\/p\u003e\u003cblockquote\u003eIn underground mines, rope guidance of conveyances is commonly used, but in the Polish mining industry, additional support at mine levels can negatively affect the effectiveness of rope-guided hoisting systems. The retractable guidance system, introduced in the Leon IV shaft of the Rydułtowy coal mine, is a pioneering approach that improves the effectiveness of rope-guided hoisting systems in multi-level shafts. \u003c\/blockquote\u003e\u003cp\u003e\u003cstrong\u003eFormat\u003c\/strong\u003e: Paperback \/ softback\u003cbr\u003e\u003cstrong\u003eLength\u003c\/strong\u003e: 120 pages\u003cbr\u003e\u003cstrong\u003ePublication date\u003c\/strong\u003e: 29 January 2024\u003cbr\u003e\u003cstrong\u003ePublisher\u003c\/strong\u003e: Taylor \u0026amp; Francis Ltd\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eRope guidance of conveyances is a widely adopted practice in underground mines across numerous countries, spanning nearly every continent. This safe and cost-effective method of guiding skips and cages offers several advantages, although it does come with a notable disadvantage, particularly in the context of the Polish mining industry. Rope-guided conveyances necessitate additional support at mine levels, which can be problematic in the unique conditions prevalent in Polish coal mines. The inclusion of additional stiff guidance at mine levels as a support negatively impacts the efficiency of rope-guided hoisting systems.\u003cbr\u003e\u003cbr\u003eThe retractable guidance system was initially introduced at the 960 m level in the Leon IV shaft of the Rydułtowy coal mine in Rydułtowy, currently known as the ROW mine and situated in the Rydułtowy department of Silesian voivodeship, Poland. This innovative construction, comprised of moveable elements reminiscent of the conventional stiff guidance employed at mine levels, serves as a support for the conveyance whenever necessary. When retracted, it enables the cage to travel at full speed through the level, thereby enhancing the effectiveness of the hoisting system within the Leon IV shaft.\u003cbr\u003e\u003cbr\u003eThe retractable guidance system, as presented in this book, represents a groundbreaking approach in the Polish mining industry. It has successfully improved the efficiency of the Leon IV shaft at the Rydułtowy colliery. This innovative solution presents a remarkable opportunity for rope guidance systems worldwide, as it addresses their primary challenge in multi-level shafts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e: 453g\u003cbr\u003e\u003cstrong\u003eDimension\u003c\/strong\u003e: 246 x 174 (mm)\u003cbr\u003e\u003cstrong\u003eISBN-13\u003c\/strong\u003e: 9781032128979\u003c\/p\u003e","brand":"PaweÅ‚Kaminski","offers":[{"title":"Paperback \/ softback","offer_id":45179498561786,"sku":"9781032128979","price":48.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0522\/4297\/2845\/products\/noImage_1_17e70aa4-0424-4139-ba57-e8075042253f.jpg?v=1707754508","url":"https:\/\/shulphink.com\/products\/a-retractable-guidance-system-for-mine-shaft-hoists-9781032128979","provider":"Shulph Ink","version":"1.0","type":"link"}