Inden is a strip-mining site in the Rhineland brown coal mining district. The field is approximately 4500 hectares in size and its coal seams are up to 45 metres thick, lying as far as 230 metres beneath the earth’s surface. Bulkscan LMS511 laser volume flowmeter measures the bulk material on the conveyor belts and so varies the slew speed of the bucket-wheel excavator.
Laser measuring optimises material removal and enables driverless operation of tripper cars
Yard by yard, the swinging booms of the bucket-wheel excavators cut through the earth. The bucket wheel moves the excavated earth onto a belt located on the boom, from where it is transported to an overland conveyor system. RWE Power has installed a Bulkscan LMS511 above the first belt on the boom. The laser volume flowmeter quickly and precisely measures the profile of the bulk materials and, using the belt speed, calculates the current volume flow. “This value is used in the bucket-wheel excavator control in order to vary the slew speed, and therefore the output, so that the most uniform volume flow possible is ensured. The resulting avoidance of peak loads also reduces system wear,” says RWE Power’s Bernd Steyer.
The proper alignment and positioning of the tripper car is also ensured with the help of laser measurement technology. The laser scanners are attached to the structure of the tripper cars in such a way that a vertical scan of the overland conveyor’s belt frames takes place in both the front and rear areas. “The laser scanners on the tripper car ensure exact positioning relative to the overland conveyor system. An additional function is the accurate control of the tripper car ramp section height relative to the overland conveyor,” says RWE Power’s Manfredo Cammaleri.
Currently, the predecessors of the LMS511 are still in use on the tripper cars. However, the LMS511 devices are now being trialled on both the tripper cars and bucket-wheel excavator booms.
Read more...Leaders in sensor technology Gail Norton Instrumentation
Sensors & Transducers
Photoelectric eyes have always needed perfect working conditions, but in the workplace there is no such thing. Steam, water, light and dirt interfere with most photoelectric eyes, but never with a Telco sensor.
Read more...Miniature position sensor for precision motion control
Sensors & Transducers
The ILPS-13Z Series miniature linear variable inductive transducer position sensor is designed to deliver exceptional performance and reliability for a wide range of industrial and laboratory applications, including automotive R&D, motorsports, motion control, medical, military and aerospace.
Read more...Inductive IO-Link sensors Turck Banner Southern Africa
Sensors & Transducers
Turck Banner is expanding its sensor range, with inductive measuring sensors with IO-Link and an analogue output for flush and non-flush mounting.
Read more...Powerful measuring sensor with two new modes Turck Banner Southern Africa
Sensors & Transducers
Turck Banner has launched two new modes in the Q2X series of miniature photoelectric sensors: laser measurement and fixed-field.
Read more...Fire detection and safety solutions for mining ACTOM Electrical Machines
Sensors & Transducers
ACTOM Industry is expanding its portfolio with the introduction of cutting-edge fire detection and safety solutions designed for explosive atmospheres.
Read more...Miniature, lightweight inductive linear position sensor
Sensors & Transducers
Alliance Sensors is now offering the miniature, lightweight LZ SERIES linear position sensor product line utilising LVIT Technology. The sensors are designed for tight spaces that require excellent stroke-to-length ratio.
Read more...Human-centric integration underpins Booyco Electronics’ approach to PDS
Sensors & Transducers
In the mining sector, the integration of advanced technologies such as proximity detection systems is critical to enhancing safety and operational efficiency. While the technological aspect is essential, the human factor plays a pivotal role in the successful implementation and adoption of these systems.
Read more...High-speed registration mark sensors Vepac Electronics
Sensors & Transducers
The SMARTEYE COLORMARK ll registration mark sensors from Vepac Electronics combine unique colour perception ability with very high-speed response.
printer friendly version