EVOBLAST Group of Companies continues to use radio blasting technology at its sites to maintain the safety of drilling and blasting operations.
The technology makes it possible to reduce the time of preparation for blasting and reduce the cost of initiation network wiring to transfer the detonating impulse.
The system consists of a control panel, a receiver, a spark arrester and an antenna on a tripod or on a magnetic base. The developers have looked ahead and made two configurations to initiate one, two, or more rounds.
The radio-controlled starter, operating both with an electric detonator and a shock wave tube, can transmit and receive a radio signal at a distance of up to 7000 meters in line-of-sight conditions. The standby time of the receiver is 24 hours. Thanks to the use of two independent firing codes, the device is protected against false tripping in the "starter - receiver" channel.
When a radio signal is sent from the starter (control panel), the receiver executes the command and sends the confirmation back to the panel. Thus, the operator monitors the initiation status in real time. In the mass initiation mode (up to 40 receivers), the radio communication range between the panel and the receiver can reach 7000 m in line-of-sight conditions, and so the registration of the RF spectrum use is not required.
The control panel and receiver units are user-friendly and easy to use, with the help of light indicators, you can
constantly monitor the quality of the radio signal. In case of power surge, a backup power source is available.
Special attention should be paid to the ability of the system to control several receivers with a PC or tablet based on Windows 7 OS and higher, including the ability to remotely change the parameters of the receiver: delay time, initiation sequence, etc. The system is also stable in the temperature range from -40 to +50C.
Today, the Group's specialists successfully carry out mass blasts at distances of up to 2.5 km between the command and receiving units in difficult conditions.
“Before blasting operations, the system was first tested. In the complete absence of line of sight and the presence of obstacles in the form of natural relief, the quality of the radio signal was excellent. All the open-cast mines where EVOBLAST GC operates have been equipped with the new system. Before the work started at each mine site, the employees had induction sessions and required training in special training classes. The new unit completely meets one of the important principles of the EVOBLAST GK - safety. We continuously increase safety requirements at the sites, improve, replenish and introduce new technologies to minimize all risks for both personnel and the environment,” emphasized Sergey Kovalkov, Technical Director of EVOBLAST Group of Companies.