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Based on this, we selected a high-sulfur CG discharge site (6.08% sulfur content) from Shanxi Province, the coal base in China (Cao, 2017). The level of HMs enrichment and …
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The sulfur content of coal is one of the important indicators that determine coal quality. The world's demand for high-quality coal is increasing. This is challenging for the coal …
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Category 4 classification 4.1 Classification according to total sulfur content Gangue at low total sulfur, medium, high, high divided into four categories, corresponding coded as …
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Accurate and rapid identification of coal and gangue is a crucial issue for efficient resource utilization and environmental protection. In this study, visible and near infrared (Vis …
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The utility model discloses the anhydrous screening installation of gangue inorganic sulfur in a kind of X ray clean coal.Technical essential of the present utility model is, it comprises electric …
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Coal gangue with a sulfur content >2 % (w/w) is commonly referred to as high-sulfur coal gangue and is a vital sulfur deposit in nature ... The classification of metabolites in the top …
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During the extraction and processing of coal, a large amount of solid waste, collectively known as gangue, is produced. This gangue has a low carbon content but a high ash content, accounting for approximately 15 to …
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Coal gangue is a mixture of aluminosilicate, sulfide, inorganic particulate minerals, and organic matter and is enriched with many trace elements (Qi et al., 2008, Querol et al., …
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Coal gangue is used in large quantities in the process of soil, arable land and fertilizer due to the coal gangue containing Sulphur and a variety of heavy metal elements and …
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This study aimed to assess the natural availability of sulfur and SO2 in coal typical of the Jurassic, Permo-Carboniferous, and Cambrian strata in Shaanxi, China, and their …
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The content of sulfur, arsenic, mercury, and fluoride in coal gangue samples (including roof, parting, floor, and mixed coal gangue) in this study is listed in Table 1. Some …
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The conclusions are as follows: higher heavy metal content in low-sulfur coal gangue is associated with greater, leaching of heavy metals; acidic conditions promote the …
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Due to the main composition of CG are SiO 2, Al 2 O 3, etc., CG is often converted into a material with sustainable development through physical and chemical test methods.CG …
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To estimate the density and sulfur content level of high‑sulfur coal, a novel approach based on image processing and the support vector machine optimized by Grey wolf …
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Under the treatment of 16, 32, 48, 64 g/kg high-sulfur coal gangue, the pH value decreased by 6.66%, 11.20%, 14.67% and 16.70%, the ESP value decreased by 59.96%, …
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Coal and Gangue Classification Based on Laser-Induced Breakdown Spectroscopy and Deep Learning. ... The system demonstrated excellent performance in …
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The production of coal gangue, a by-product of coal mining and washing, is rapidly increasing due to growing energy consumption. As the accumulated coal gangue has not been …
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Coal gangue (CG) is a solid waste generated during coal mining, washing and processing, accounting for 15–20% of coal production. It is considered one of the largest …
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Based on the classification standard of GBT 29162-2012, the coal gangue used in this study was categorized as low-sulfur coal gangue (total sulfur [S t,d] <1 %). The content of …
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Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and other problems. Starting from the …
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Traditionally, lignite production has relied upon laboratory analysis for determination of S content in the mined coal, for example, Methods D3177, D4239 (American Society for …
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"Effect of fines content on the shear behavior of coal gangue." In IFCEE 2021: Earth Retention, Ground Improvement, and Seepage Control, Geotechnical Special Publication 324, …
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Keywords: coal gangue; properties; classification method; naming method. 00. introduction. Gangue is a major solid waste generated during the mining and processing of …
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To estimate the density and sulfur content level of high-sulfur coal, a novel approach based on image processing and the support vector machine optimized by Grey wolf …
WhatsApp: +86 18221755073
In some cases, such as CG-2, CG-6 and CG-15, the sulfur as sulfate content significantly exceeded the sulfur as sulfide content and reduced accordingly the sulfur as …
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However, online detection of the coal content in gangue is currently unfeasible. A high coal content in gangue not only leads to a decline in the yields of clean coal but also …
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Online intelligent recognition of coal and gangue is an important aspect of coal mine intelligent development. Current research focuses more on improving recognition accuracy …
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It is classified into four categories based on total sulfur content: low, medium, medium-high, and high, as shown in Table 1. This standard specifies the classification categories and naming conventions for coal …
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Based on the total sulfur content, QX and XS are categorized as medium-to-high sulfur (>3 %) gangues, XZ, SJH, and DYG as medium sulfur (1–3%), and the remaining …
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Coal gangue is a solid waste generated during coal mining [], characterized by its low carbon content, which leads to a range of environmental issues due to its limited utilization …
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This review highlights the significance of coal gangue classification according to its properties for the comprehensive utilization of gangue. ... Results showed that the treatment with 70-mesh …
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Studies of sulfur content in the samples should be carried out with sufficient periodicity and in a manner enabling to obtain most reliable results which would refer to the entire batch of material.
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The utility model relates to a system is used multipurposely to gangue sets up gangue breaker, gangue sorting unit and sulphur concentrate processing system through connecting in order, …
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The invention discloses a coal gangue sorting process. The coal gangue is separated through the steps including the steps of making the coal gangue enter a sulfur …
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The soilification of coal gangue and its application as a soil amendment to improve soil quality and enhance agricultural productivity have become research focuses for waste reduction and …
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Sun and Chen [] decomposed coal rock images based on double-tree complex wavelet transform and completed image identification based on relative entropy similarity.Li et …
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The system demonstrated excellent performance in predicting the calorific value, sulfur content, and volatility of coal. Cao et al. used a combination of LIBS and KNN to classify coal types based on 11 elements in coal.
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