Employees of JSC "uralmekhanobr" (scientific-research and design Institute UMMC) together with the specialists of diamond mining company ALROSA invented a system of chamber of mining of kimberlite ore with a bookmark of the developed space of underground mine "Aikhal" (resp. Sakha). JSC "uralmekhanobr" and AK "ALROSA" (JSC) have patented invented and introduced to the system.
Previously, seizure of stockpiles of kimberlite at the mine is carried out by the system layer processing. The miners it causes low strength and high structural weakening of rocks.
– we set ourselves the task of finding technical solutions to improve the efficiency of mining operations at the mine "Aikhal" – said the Deputy head of the Department of mining science, OAO "uralmekhanobr" Alex kitten. – Analyzing the situation and conducting some research, we proposed to replace the layer system of the mine to a more efficient, chamber.
Chamber system enables the excavation of the ore with the highest possible geometric parameters while maintaining the stability of all system elements. This is due to the special arrangement of the cells in the so-called "staggered" order, when the top half of the camera is filling the array previously worked cameras and the lower half of the ore deepens in the array.
the Extraction of kimberlite ore chamber system of development was 25% cheaper compared to the layered development system. As a result, the cost of the mine to conduct mining operations and the cost price of extracted ore mining declined markedly.
in Addition, the new system of the mine "Aikhal" safe to operate. The staff involved in the conduct of mountain works, is not in a mined-out space cameras.
the Developed technology and the principle "staggered" arrangement of the chambers is protected by a patent and can be used for removing volatile stocks of ores at other mines.
the plans of mining science, OAO "uralmekhanobr" – carrying out scientific research and develop documentation to increase the height of the diamond-shaped cameras used at the mine "Aikhal", from 20 to 30 meters. Successful implementation of the project will increase the efficiency of mining operations at the mine.
