Kiruna Iron Mine is located in northern Sweden, 200km deep inside the Arctic Circle, is one of the highest latitude mineral bases in the world.
At the same time, kiruna iron mine is the world's largest underground mine, is currently the only working supersize iron mine in Europe.
Unmanned intelligent mining has been basically realized in Kiruna iron mine. In the underground working surface, there are almost no other workers except the maintenance workers. Almost all the operations are completed by the remote computer centralized control system, with a very high degree of automation.
The intelligence of Kiruna Iron Mine mainly benefits from the use of large mechanical equipment, intelligent remote control system and modern management system. Highly automated and intelligent mine system and equipment are the key to ensure safe and efficient mining.
1) Development:
Kiruna Iron Mine adopts the joint development of vertical shaft and slope road. There are three vertical shafts in the mine for ventilation, ore and waste rock lifting. The personnel, equipment and materials are mainly transported by trackless equipment from the slope road.
The main lift shaft is located in the footwall of the ore body. To date, the face and the main transport system have been moved down six times, with the current main transport level at 1,045m.
2) Drilling charge and blasting:
Roadway tunneling adopts rock drilling trolley, which is equipped with three-dimensional electronic measuring instrument, which can realize precise positioning of drilling.
Simbaw469 remote drilling trolley produced by Atlas, Sweden, is used for rock drilling. The vehicle uses laser system for accurate positioning. It is driverless and can operate continuously for 24 hours.
3) Remote Loading, Transportation and Hoisting of Ore:
Intelligent and automated drilling, loading and lifting operations have been realized at Kiruna Iron Mine, and driverless drilling trolleys and scrapers have been realized.
Toro2500E remote control scraper produced by Sandvik/Tomlock is used for ore loading, with a single efficiency of 500t/h.
There are two types of conveyance system: belt conveyance and rail conveyance.
Automatic rail transport is generally composed of eight mining car, mining car for continuous loading and unloading of automatic bottom unloading car, belt conveyor will automatically transport the ore from the crushing station to the metering device, and shaft skip to complete the loading and unloading, the whole process is remote control.
4) remote control concrete injection technology support and reinforcement technology:
Roadway support is combined with shotcrete and anchor net, which is completed by remote control concrete jet, and anchor rod and steel net are installed by anchor trolley.
