Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr
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EQUIPMENT GALLERY Large Vibrating Screen Handles High Production Demands the groove pre-cut in each product. It is available with either a grooved or threaded (FPT) end to simplify equipment connec- tions. The Series 2921 ball valve is avail- able in 2- to 6-in. sizes (50 to 150 mm), and is capable of withstanding pressures of up to 100 psi (700 kPa) at 73°F (23°C). The valve is available with either a square nut or lever handle for easy operation. Victaulic's Aquamine system is designed to provide a quick, simple and economical method for joining PVC pipe for water serv- ices such as water supply, leaching lines and dewatering lines. www.victaulic.com W.S. Tyler says its XL-Class vibrating screen combines advanced drive technolo- gy with a wide body to offer better screen- ing action and more throughput. Larger than any other vibrating screen from W.S. Tyler, the XL-Class is intended for high ton- nage production rates, and features exciter drive technology that ensures smooth oper- ation and high uptime. The linear stroke is generated by counterweights mounted on two machined shafts that spin in opposite directions via two heavy-duty spur gears attached to an iron casting that mounts to the exciter bridge. The bridge is the main exciter support and transmits dynamic force through the entire structure. In addi- tion to better operation, the exciter design increases bearing life up to 50,000 hours, according to the company. The XL-Class offers screening surfaces of up to 390-ft2 (36 m2), facilitating pro- duction rates up to 15,000 tons per hour and cut sizes from 1/4- to 5-in. (6–127 mm) with varying degrees of incline. The XL-Class can be configured as a banana screen—an approach that can be espe- cially effective when the feed contains a large quantity of fines that are much 124 E&MJ; • AUGUST 2012 smaller than the opening of the screen media. To provide added strength, the XL- Class features a Huck-bolted screen body fastening. Side plates are constructed with high-strength carbon steel. The area sur- rounding the shaft assembly is strength- ened with a reinforcing plate that ties together the side plate, screen panel and shaft assembly. www.wstyler.com Ball Valve for Mine Water Systems Victaulic has expanded its Aquamine line of PVC pipe-joining products with the addi- tion of the Series 2921 ball valve, designed to provide leak-free dead-end service, as well as a fast, easy connection. Like other Aquamine components, special tools and equipment are not required for installation; the valve is joined by inserting a spline into Rugged Tablets Offer Choice of Operating System DRS Technologies has expanded its Tactical Systems computer product line to include the Armor X7et and Armor X7ad—light- weight 7-in. multi-touch tablets that allow the customer to choose between the Android or Microsoft Windows OS. The Armor X7et weighs less than 1.5 lb and provides six hours of battery life. It features an Intel Atom Z670 processor and runs Microsoft Windows 7 Professional. Its Android coun- terpart, the X7ad, weighs 1.3 lb and oper- ates for up to eight hours. It features a NVIDIA Tegra 2, 1-Ghz dual-core processor and operates on Android v3.2. Both tablets have a 7-in. outdoor-readable, multi-touch screen display, are certified to MIL-STD 810G for extremes in temperature, vibra- tion, shock and four-foot drops and have an IP65 rating for ingress protection, which means they are fully protected against dust and can withstand low pressure water spray from all directions. Both computers also offer connectivity options that include Gobi wireless broadband, integrated GPS, 802.11 b/g/n WiFi, and Bluetooth wireless. www.drsarmor.com www.e-mj.com