Chinese Coal Mine to install PED and TRACKER Systems
Baijigou Coal Mine (see picture right) is the first coal mine in China to order our new ICCL cap lamp with both PED and Tagging electronics included. This will enable communication to personnel underground via the PED paging system, as well as tracking their location using the TRACKER tagging system.
Baijigou is operated by the Ning Xia Coal Group and is located in the Helan Mountains bordering Inner Mongolia. Though an extremely rugged landscape (see picture below), the engineers at Baijigou are planning to install the PED antenna on the surface by hanging it on poles, rather than the more typical method of trenching into the ground.
The PED System will use an 8 km (25,000 ft) surface antenna and start with 80 ICCL personal cap lamps. The TRACKER System will incorporate 20 Read Beacons at strategic points underground.
Baijigou Coal Mine is a very interesting mine, as it extracts all of a 20 m (66 ft) thick coal seam. This is achieved by using top coal caving longwall methods in two passes. The first pass uses the shearer to extract 3 m (10 ft) of coal above the middle of the seam, with the top 7 m (23 ft) of coal won by top coal caving. Then a second longwall pass is done in the bottom half of the seam, again by shearing 3 m and top coal caving the remaining 7 m.
Hence, it is a most impressive operation and we are very appreciative of their support for our communication technologies. We also look forward to our first installation in this Province of China.