Figure
Contexts in source publication
Context 1
... than 90% of rock mass (Ore, Coal, and overburden) at mining enterprises of Uzbekistan is extracted by UZTM-KARTEX excavators. Excavator fleet (EKG) of the enterprises of Uzbekistan is presented in Table 2. ...Context 2
... excavation process involves the utilization of a rock mass established at the standing level, whereby the bucket filling operation is performed in a horizontal plane. In relation to the matter of productivity, the excavation cycle time in sections up to the sixth is determined, and the value of í µí°¾ í µí± is established in line with Table 6 (27-29). n -turn of excavator sub-block separation; ΔV1 -rock volume of the first sub-block, m 3 In accordance with the data of the table "Main technological parameters of the exit scarp mining" the dependence of the bucket filling ratio on the volume of excavated sub-block can be traced ( Figure 6). ...Similar publications
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Citations
... Since LPG is an explosive material, it requires storage in high-pressure tanks and poses a potential health risk to both animals and humans, as it is heavier than air and can accumulate in low-lying areas. There are currently no clear geological or geochemical restrictions in the literature that would limit the use of LPG hydraulic fracturing technology (40)(41)(42). ...
The article presents an analysis of a rational scheme for surface mining of peat raw materials using the in-pit crushing and conveying (IPCC) system for in-situ processing. Technologies for developing peat deposits are undergoing changes with the phased modernization of mining operations and related equipment, in line with the current trends towards increasing the efficiency of mining machinery and equipment for extracting and processing minerals. As a result of analyzing the in-pit processing system, it was established that there is a need to introduce a grinding module into the process of excavating peat raw material, thus revealing the benefits of in-pit processing. In accordance with the operational flow of raw materials in the technological scheme of the IPCC system, observing the principle of technological gap, it is proposed to unload excavated peat raw material into an intermediate storage area to ensure the operation of mining and processing equipment without having to coordinate their capacity. The placement of the grinding module along the extraction front, together with the movement of the intermediate dump, corresponds to a reduction in auxiliary operations time for moving the module. Due to this, a mobile design for the grinding module was determined due to the reduction in transportation distance of wet excavated raw peat materials with required off-road ability when moving on low bearing capacity grounds. In accordance with the mobile design of the module, a ski undercarriage has been selected, combining the advantages of stationary and mobile location methods inside the quarry.
