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The low-rank coal samples used in the experiment were obtained from the Shendong mining area in Inner Mongolia. Table 1 presents the proximate and elemental analysis results of the coal samples. The results indicate that the coal possesses high oxygen and volatile matter contents, implying that it contains a high concentration of oxygen …
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The efficient flotation separation of low-rank coal is still a difficult problem. The development of a collector is the key to solve the problem. In this study, a kind of mixed collector scheme with a practical value is proposed. The effects of the single collector dodecane (D) and methyl oleate (MO) and mixed collector D–didodecyl dimethyl …
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The XJM series of flotation machine is mainly used for separating of coal slurry (0.5mm below) and mineral particles including nonferrous metals, rare metal, ferrous metal, …
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SF Flotation Cell/Machine Overview. Flotation machines constitute the basic equipment for useful minerals recovery from non-ferrous ores and other raw materials by flotation. …
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XJK series flotation machines are mainly used to separate gold, silver, copper, iron, lead, zinc, molybdenum, nickel, aluminum and other metal minerals. ... The Working Principle of SF Flotation Machine The slime and medicament are fully mixed and fed into the bottom of the first chamber of the flotation machine. After the impeller rotates ...
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The inchoate algorithm for the coal slime flotation control is the feed-forward control to the feed concentration and the reagent quantity. This control model is widely utilized because of the ...
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In this study, four different machine learning (ML) models were used to simulate the migration behavior of minerals during coal slime flotation based on particle characteristics (shape, size, compositions, and types): random forest (RF), logistic regression (LR), AdaBoosting (Ada), and k-nearest neighbors (KNN).
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In coal flotation, a fair number of studies have been conducted to determine the effect of feed coal particle size on the coal flotation recovery, product quality ...
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Xie et al. [10] studied the effect of a new flotation promoter (PGS) on the rate of coal slime flotation and concluded that PGS enhanced the flotation rate. Tian et al. …
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A flotation cell/machine is a common and widely used flotation equipment consisting of a series of tanks or chambers connected by pipes and valves.Slurry and …
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Clean coal and a series of by-products, such as coal gangue, middlings, and coal slime, have been produced based on the different particle characteristics [5]. However, coal slime has become a significant source of solid waste along with the rapid development of coal mining industry in recent decades [6], [7], [8], [9].
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The results showed that by establishing a reasonable ratio of the two types of flotation feeds with different particle sizes but similar slime properties, pre-desliming branch flotation can achieve high efficiency flotation for high ash fine fraction coal slime without coarse particles losses.
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During the forward flotation process, the coal slime was firstly added into the flotation cell and conditioned for 2 mins. Then diesel was added and conditioned for 2 mins (W. Li et al., 2021; Liao et al., ... All flotation tests were conducted in an XFD-1.5 L flotation machine. 2.2.4 Preparation of coal water slurry (CWS) The experimental CWS ...
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A gravity – flotation coupled separator with up-flow feeding and dual-concentrate was developed to improve the recovery and selectivity in coarse coal slime …
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The coal slime samples from Qianjiaying Coking Coal Preparation Plant of Kailuan Mining Group were used in the experimental study on the effects of shearing strength in slurry conditioning on coal ...
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What is Gold Ore Flotation Machine Coal Slime Flotation Machine, MILL manufacturers & suppliers on Video Channel of Made-in-China. Home Video Channel What is Gold Ore Flotation Machine Coal Slime Flotation Machine Machine Equipment. US$25,000.00 / Set. View. Recommend for you; What is CTB and Wet Drum Magnetic …
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A coal slime sample from Henan province, China was collected as the flotation feed in this experimental study. The proximate analysis results of the coal slime sample are summarized in Table 1.The coal slime has an air-dried moisture (M ad) of 1.09%, an ash content (A d) of 20.46%, a dry ash-free volatile matter (V daf) of 9.85%, …
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In this study, four different machine learning (ML) models were used to simulate the migration behavior of minerals during coal slime flotation based on particle characteristics (shape, size ...
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556 Q. Tian, Y. Wang, G. Li mass with the ash content of 12.35%. The float-and-sink results (Table 2) showed that the yield of the -1.3 g/cm3 density fraction was only 7.56%. The yield of the middle density fraction of 1.4-1.6 g/cm3 amounts to 52.79%, indicating that the coal may be hard to separate.
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This study investigates the flotation performance of a representative hard coal slime sample (d80 particle size of minus 0.2 mm) obtained from the Prosper-Haniel coal preparation plant located in …
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Description. GTEK SF flotation machine is a self-aerated mechanical flotation machine with pulp suction capacity.. SF Flotation Machine can be used to achieve specific …
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The microemulsion collectors were assessed for their effectiveness in coal slime flotation by conducting flotation tests using specific flotation indicators. The collector employed was microemulsion collector, whereas the ing agent used was 2-octanol. The coal slurry had an 80 g/L concentration, the spindle was rotating at 2000 rpm, and the ...
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The design and optimization of flotation machines hold significant importance in enhancing the industrial-grade coal beneficiation process. In this research, the flow field characteristics and flotation performance of a novel pulse jet flotation machine (PJFM) were investigated. The results showed that a PJFM equipped with an …
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Coal slime flotation is crucial to improve the utilization rate of coal resources and reduce environmental pollution. However, the existing flotation image processing systems based on wired communication brings insufficient computational resources, poor scalability and high capital expenditure. In this paper, we propose a two …
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PDF | On Jan 1, 2023, Wenbo Zhu and others published Ash Detection of Coal Slime Flotation Tailings Based on Chromatographic Filter Paper Sampling and Multi-Scale Residual Network | Find, read and ...
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The coal slime samples from Qianjiaying Coking Coal Preparation Plant of Kailuan Mining Group were used in the experimental study on the effects of shearing strength in slurry conditioning on coal slime flotation.The raw coal slime,coarse coal slime with grain size greater than 0.074 mm and fine coal slime with grain size less than 0.074 mm were …
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The detection of ash content in coal slime flotation tailings using deep learning can be hindered by various ... Visual detection methods, which combine machine vision and
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Application of Incremental Extreme Learning Machine in Ash Identification of Flotation Tailings. Machinery Design & Manufacture. 08, (2017), 17–19. Crossref. ... Guo, X., Wei, L. and Yang, C. 2020. Research on Ash Detection Method of Coal Slime Flotation Tailings on Convolutional Neural Network. Coal Technology. 39, 2 (2020), 144–146. …
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@article{He2024InvestigationOT, title={Investigation on the preparation of coal slime flotation microemulsion collector: A combination of experimental and simulation method}, author={Meng He and Jingwei Wang and Jida Niu and Hao Lyu and Liqing Sun and Xiaofang You and Lin Li and Qingbiao Wang}, journal={Fuel}, year={2024}, …
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Compared with the clean coal ash content obtained at the optimum dosage of n-dodecane, the ash content of clean coal floated by the HB-MC is higher at this dosage. Therefore, the optimum dosage of HB-MC for coal slime flotation is 4.0 kg/t, the clean coal yield is 62.74 %, the ash content is 12.93 %, and the combustible recovery is 78.37 %.
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