Coal recovery from coal washing plant tailings with Knelson concentrator

Özgen, Selçuk; Arsoy, Zeyni; Ersoy, Bahri; Çiftçi, Hakan

doi:10.1080/19392699.2019.1665033

Cited by 6 publications

(7 citation statements)

References 8 publications

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“…Uslu et al (2012) reported that particle size, blow speed, and fluidizing water pressure could affect the separation [ 264 ]. Özgen et al (2019) proposed the equations as a function of gravitational force, solid concentration, fluidization water pressure, and sample collection time, to estimated ash content and recovery of clean coal product [ 265 ]. Similarly, Sabah and Koltka (2014) developed the regression model in the function blow speed, fluidization water pressure, sample collection time, and solid concentration, to estimate ash content of clean coal products [ 266 ].…”

Section: Enhanced Gravity Separation Technologiesmentioning

confidence: 99%

Conventional and recent advances in gravity separation technologies for coal cleaning: A systematic and critical review

Phengsaart¹,

Srichonphaisan²,

Kertbundit³

et al. 2023

Heliyon

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Section: Enhanced Gravity Separation Technologiesmentioning

confidence: 99%

Conventional and recent advances in gravity separation technologies for coal cleaning: A systematic and critical review

Phengsaart¹,

Srichonphaisan²,

Kertbundit³

et al. 2023

Heliyon

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“…In most research, KCs were used to concentrate gold ores [23,24], synthetic ore [25,26], coal [27], nonmetallic minerals [28], jewelry wastes [29], etc. Xiao et al modeled and predicted the gold recovery of a −800 µm gold deposit by using the Gravity Recoverable Gold (GRG) test [30].…”

Section: Introductionmentioning

confidence: 99%

“…Ghaffari et al investigated the separation performance of the KC for −600 µm synthetic ore (quartz, magnetite, ferromolybdenum, copper, zinc, and lead) [31]. Özgen et al used the KC to separate coal-washing-plant tailings of −500 µm and achieved a maximum combustible recovery of 81.61% [27]. Chen et al studied the distribution of a quartz sample with a particle size range of −650 + 550 µm, −380 + 270 µm, −250 + 212 µm, and −180 + 150 µm in different rings in the bowl [32].…”

Section: Introductionmentioning

confidence: 99%

Particle Classification in the Enhanced Gravity Field Using the Knelson Concentrator

Zhang,

Yang,

Zhao

et al. 2023

Minerals

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The particle classification in the enhanced gravity field generated by the Knelson concentrator was studied in this paper. Three main test parameters, namely rotation speed, backwash water pressure, and solid mass percentage, that affected the classification performance of the Knelson concentrator for the classification tests of quartz and synthetic ore, which consisted of quartz and magnetite, were investigated. The yield of quartz concentrate increased with the rotation speed and decreased with the solid mass percentage and backwash water pressure. A lower backwash water pressure and solid mass percentage could improve the classification efficiency. The classification performance of the Knelson concentrator was comparable to that of the traditional hydrocyclone, with a classification efficiency of 76.84% and cut size of 49 μm when the solid mass percentage was 16.67%, the backwash water pressure was 50 kPa, and the rotation speed was 3600 rpm. The classification performance of quartz in synthetic ore tests was inferior to the single quartz tests, and the magnetite showed a better classification efficiency than the quartz with the same combination of test parameters. This study revealed the classification performance in the separation process of the Knelson concentrator in detail, which was beneficial for clarifying the migration rule of fine-grained minerals in the enhanced gravity field.

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“…Türkiye'de 2020 yılında üretilen enerjinin ise yaklaşık %34,8'i kömür kaynaklıdır [6]. 11.525 milyon ton rezervi yeraltında bulunan Türkiye'de kömür açık ocak veya yeraltı madenciliği ile açığa çıkartılabilmektedir.…”

Section: Introductionunclassified

“…Ağır ortam ayırma, siklon, köpükle yüzdürme ve spiral ayırma sulu zenginleştirme yöntemleri olup bu yöntemlerin tercihinde kömürün partikül boyutu ve gereken ürün kalitesi göz önünde bulundurulmaktadır [10]. Türkiye'de zenginleştirme tesislerinde ağır ortam ayırma yöntemi kullanılmaktadır [11].…”

Section: Introductionunclassified

Kömür Üretim Tesisi Atıksularının İleri Arıtım Prosesleri ile Arıtılarak Tekrar Kullanılabilirliğinin Araştırılması

DEMİREL¹,

ÜSTÜN²

2022

European Journal of Science and Technology

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ÖzYeraltı madenciliği ile kömür üretimi gerçekleştirilen tesislerde üretim sırasında atıksu oluşumu kaçınılmazdır. Oluşan atıksuyun deşarj edilmesinden veya proses suyu olarak kullanılmasından önce uygun arıtma yöntemleri ile arıtılması gerekmektedir. Bu çalışma kapsamında yeraltı madenciliği ile kömür üretimi gerçekleştiren bir tesiste oluşan atıksuların fiziko-kimyasal ve membran prosesler ile arıtılarak kömür zenginleştirme tesisinde tekrar kullanılabilirliği incelenmiştir. Bu kapsamda atıksudan alınan numunelerde bulanıklık, ph, KOI ve AKM parametreleri incelenmiştir. Tesisin bulanıklık gideriminde toplam verimi %99,97, KOI giderim verimi %95,16, AKM giderim verimi ise %99,72 olarak hesaplanmıştır. İnceleme sonuçları arıtılan atıksuyun kömür zenginleştirme tesisinde tekrar kullanılabileceğini bununla birlikte çevresel ve ekonomik kazançlar sağlanabileceğini göstermiştir.

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Coal recovery from coal washing plant tailings with Knelson concentrator

Cited by 6 publications

References 8 publications

Conventional and recent advances in gravity separation technologies for coal cleaning: A systematic and critical review

Conventional and recent advances in gravity separation technologies for coal cleaning: A systematic and critical review

Particle Classification in the Enhanced Gravity Field Using the Knelson Concentrator

Kömür Üretim Tesisi Atıksularının İleri Arıtım Prosesleri ile Arıtılarak Tekrar Kullanılabilirliğinin Araştırılması

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