Tools of the trade
Spring 2018
VACONX4 by Danfoss Drives
The harsh conditions typically encountered in mining environments present unique reliability and protection challenges for manufacturers and operators of industrial electrical equipment. Environmental factors, such as airborne dust (especially electrically conductive) and high heat and/or humidity, can dramatically limit the efficiency and operational lifetime of components such as variable frequency drives (VFDs) and soft starters, increasing costs and downtime and potentially compromising mine safety.
Advanced component technologies coupled with innovative packaging approaches can help mitigate these risks. Examples include:
- Novel NEMA Type 4 enclosure with flange-mounted VFD solution for underground mine application.
- Liquid-cooled VFD technology for dusty/dirty environments.
- Ruggedized stand-alone NEMA 4X VFDs for harsh/extreme/high-vibration environments.
- Compact modified shipping container (e-house) with temperature control, suitable for outdoor installation.
The VACON NXP Delivers for the Life of Your System
VACON NXP by Danfoss is a premium air-cooled AC drive for use i nall applications where reliability, robust performance, preci sion and power are required. These drives are available in the power range from 0.55 kW to 2,000 kW (or up to 5300kW Liquid Cooled). Voltager anges from 208 to 240V, 380 to 500V and 525 to 690V.
As a dedicated AC drives company, Danfoss continues to pioneer trends in product design and provide innovative solutions for demanding applications and high-power ranges. Our VACON NXP range offers the ultimate in motor control, for both induction and permanent magnet (PM) motors, gearless drive applications and paralleling solutions for high power motors. With improved functional safety, extensive approvals in place and comprehensive maintenance tools, you can be sure that your VACON AC drives will give you the best possible control and ensure high operational quality and availability over the entire lifetime of your system.
Dos Santos International Starts Up One of Two Sandwich Conveyors For Paris Tunneling Project
Dos Santos International is now starting up one of two DSI GPS (Gently Pressed Sandwich) high angle conveyors for the Paris Tunneling Project. DSI was awarded a contract to provide two vertical DSI GPS systems for H+E Logistics.
The DSI GPS will each elevate 800 t/h of tunnel muck at a 90° angle. The DSI Sandwich conveyors will be reused throughout the life of the project. The Grand Paris Express is the most ambitious new subway project in the Western world. The extension is a $25 billion expansion of the century-old Paris Metro.
DSI Sandwich belt high angle conveyors take on many forms and offer many advantages. Each DSI Sandwich Conveyor uses two standard, smooth-surfaced conveyor belts, face-to-face, to gently but firmly hug the product being carried. This not only makes steep angles possible, it also offers a spillage free, environmentally sound operation because the material remains secured between the belts.
To learn more about Dos Santos International and their most reliable and economical solution for your steep angle and vertical high-tonnage conveying requirements, visit their website.
NETZSCH Addresses Dewatering Challenges
NETZSCH offers dewatering systems or skids to help mines that require a small and compact moveable unit to address their dewatering challenges. Using the standard range NEMO® Progressing Cavity Pumps, units can be built with a wide range of flow capacities, pressure capabilities and construction materials. Pumps are configured with a right-angle gear motor to save space and are located at the side of the tank for easy access. Units comply with all relevant safety standards. Standard and customized controls and anti-reversing devices are available. Individual pumps are also available to retrofit your existing skid.
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