Fachartikel 04_2018
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From Mining Waste to Load-Bearing Support Material
Underground stowing material has to meet all kinds of divergent requirements. From an economic viewpoint the overall costs should be kept as low as possible, while from a stowing point of view the material as a load-bearing element often has to satisfy very high standards. Moreover, the preference is generally…
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Injection Processes for Rock Salt and Salt Backfill – Tried and Tested Materials and New Developments
According to the classic approach, fissure or pore systems in solid rock or backfill are to be injected with particle-laden, and thereafter particle-free material when a high level of impermeability is required. The suspensions used in the salt and potash mining industries are usually in the form of magnesia binders.…
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Hydraulic Driven Piston Pumps for the Transport of Pastes and Slurries in the Mining Industry
More and more mines are using double piston pumps for conveying pastes, cakes and slurries. Stiff pastes are normally used for the stabilization of underground workings. Cement and ash are added to create a construction material with sufficient strength. For tailings and ore transportation above ground, slurries are produced and…
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Chromite Ore Mining in Kazakhstan – Experiences with Fibre-Reinforced Shotcrete
In the Donskoy Mine GOK in Chromtau/Kazakhstan, the TOO Schachtbau Kasachstan, a joint subsidiary of the German companies Schachtbau Nordhausen GmbH and Thyssen Schachtbau GmbH is driving a roadway in tricky geology with a small cross-section by means of New Austrian Tunnelling Method (NATM). Apart from the application of suitable…
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PERI VARIOKIT in theTunnelling Sector: A Special Application in Formwork Construction
A key indicator regarding the efficiency of formwork systems is their suitability for special applications. More specifically, the cost-effectiveness depends largely on how much the work processes differentiate for different applications and how high the ratio of special components is relative to the standard components of the system. In this…
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Part-Automation Makes for Greater Production Efficiency
The RAG-managed Prosper-Haniel colliery in Bottrop/Germany, has some very impressive equipment operating on its high-performance coal faces 1,200 m below ground. These underground workings, where miners have been busy digging out the coal, have been the scene of some rapid technological developments over the last five decades. 50 years ago…
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Highly Effective Mining of Anthracite Coal on the IbbenbĂĽren Mine
The IbbenbĂĽren mine produces coal under the special conditions of large depth and low-thickness seams with high methane content with the risk of gas and gas/coal outbreaks. In this essay the path to a modern, high-performance mine under these conditions is described. Special emphasis is given on the roof support…
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Digitisation in the Mining Industry: Networked Machines Making for Greater Efficiency
Industry 4.0 is now being introduced into the mining sector in an attempt to save valuable time and money. This helps speed up the workflow and improve safety standards at mines. The following paper discusses the progress to be made in this area and what is already possible today. Author:Â Christel…
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Epiroc Boomer E1C-DH Implemented in a Quarry
Truffer AG, Vals/Switzerland, is a company extracting Vals Quartzite in its own quarry. The material is further processed in Truffer’s factory located in Vals. Founded in 1983, Truffer is now one of the leading stone processing companies in Switzerland. The firm employs 60 workers and fabricates a wide range of…
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Continuing to Add Value Across a Wide Variety of Material Handling Requirements
More than a century after their invention, belt conveyors remain a key element in delivering bulk material to the process and production of products and material that feed the worlds burgeoning economies. The technology has evolved significantly throughout the 20th century and continues developing to keep pace with the demands…
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