Simulation and optimization of mining-separating-backfilling integrated coal mine production logistics system

Abstract

As a new collaborative mining technology, the integration of mining-separating-backfilling (IMSB) enables the coal industry to realize safe, efficient, and green mining of coal resources at the expense of making the underground coal mine production more complex. In coal mining, the primary problem is to eliminate the production logistics system bottleneck to increase coal output. The key to synergetic mining is to realize that the mining capacity of the fully mechanized face should match the underground raw coal separating and gangue backfilling capacities. Considering a coal mine with IMSB in Henan Province, AnyLogic simulation software was used to simulate and optimize the production logistics system based on a generalized stochastic Petri net (GSPN). The main simulation results show that: (1) the raw coal separating capacity of this deep mine matches its mining capacity, and the gangue backfilling capacity can almost meet the demand for backfilling after raw coal mining; (2) belt conveyors 1 and 6 are the transportation bottlenecks of increasing production in the mine, and the lifting capacity of the main shaft is insufficient; (3) after optimization, the clean coal output of this coal mine increased by 3087 t monthly. This research promotes synergetic mining in the coal industry and can serve as a reference for the optimization of similar coal mine production logistics systems.

Movement and deformation characteristics of overlying stratum in paste composite filling stope

“…PCFM is combined with the bulkiness of loose rock, and the composite filling body formed by paste filling body and caving roof is used to support the overlying stratum (Yu et al, 2016; Yin et al, 2016; Guo, 2020; Lv et al, 2022), as shown in Figure 1. Compared with other filling methods, this filling method can also effectively reduce the filling cost, simplify the filling process, reduce the amount of filling materials, improve the filling speed, and minimize the impact on production (Xu et al, 2015; Yang et al, 2017; He et al, 2021; Qiu et al, 2022; Wang et al, 2022).…”

Research on load monitoring technology of mine hoist based on machine vision

“…Coal is an important energy support for industrial development, with the continuous exploitation of mineral resources, the depth of mine mining is increasing, which prompts the continuous development and progress of mine hoisting and transport technology [1][2][3]. The mine hoisting system serves as a crucial transportation link in the coal production process.…”