Engineering & Mining Journal

JUN 2019

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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MATERIAL HANDLING JUNE 2019 • E&MJ 65 www.e-mj.com vice. This capability enables convenient access to the health data of bearings in hazardous or hard-to-access locations. WEG announced it has just developed a new line of motors that incorporate spe- cial features and a new system of brushes and slip rings (wound rotor motors) mak- ing them suitable for operation in severe applications. WEG said its M Mining mo- tors are designed with features that pro- vide toughness, strength and long-lasting operation under aggressive environments typically encountered in mining. The mo- tors offer IP66 protection and are suitable for handling critical loads in applications that require high starting torque. Slip ring motors are widely used in mining since they are specifically designed to drive high-torque load demands at low speeds, combined with low inrush current. The number of parts and components has been significantly reduced through- out the M line, and the use of non-stop pressure springs helps to minimize brush wear. In its liftable brush configuration, the motor is equipped with a control and automation system for the brush-lifting operation, which is preset at the factory with full logical operation and fault mon- itoring via integrated HMI or from a re- mote location. WEG claims the motor line allows us- ers to simplify startup settings, reduce operating and maintenance costs, and increase the reliability of their systems. Dtect, another tool geared toward main- taining reliability in rotating machinery, was introduced by Voith. It's an intelligent monitoring system that provides real-time data of driveline performance and cou- pling status, enabling an operator to take actions to prevent potential problems and avoid unplanned downtime. The company claims that by supporting better decision making, Dtect helps to increase productiv- ity as well as significantly lower production and maintenance costs. It is specifically designed to work with couplings such as Voith's SmartSet, but also may be compat- ible with other existing couplings. Through continuous measurement of the slip angle, Dtect accurately identifies and monitors coupling slippage caused by high torque peaks in a driveline. Accord- ing to the company, it uses an updated quadruple sensor setup that increases the sensing range without affecting the resolution of the measurement. By ana- lyzing the slip behavior of the coupling, the operator can evaluate if the system is running at full capacity and if not, adjust the parameters accordingly. If necessary, proactive coupling maintenance can be performed to avoid costly downtime. Dtect, said Voith, also makes it possi- ble to monitor multiple couplings at the same time. It assesses each coupling in- dividually and communicates the differ- ent parameters via a common interface. In this way, Dtect allows for simultaneous monitoring of all connected drivelines. Operators benefit from comprehensive real-time status information provided by one central system. Voith further explained that because Dtect has Modbus TCP/IP communica- tions, it can be integrated into estab- lished process information networks and also paired with an integrated HMI touch panel for highest usability and control, with status monitoring at a glance. Visu- al warning indicators assist operators in making decisions and taking the neces- sary actions in any given situation.

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