EFFECT OF KNELSON CONCENTRATOR OPERATION PARAMETERS ON COAL DESULFURIZATION AND DEASHING

Öz

The Knelson Concentrator, developed especially for finer-sized gold recovery, has recently been used to enrich many ores. The Knelson concentrator is a device that separates by utilizing centrifugal force and density. In this study, a Knelson Concentrator was used to remove sulfur and ash forming mineral matter in coal, which is very fine in size and causes environmental problems. The effects of Knelson Concentrator operating parameters (centrifugal force, water flow and grain size) on inorganic sulfur and ash removal were investigated. Both inorganic sulfur and ash were determined to be effective in removing. % 7.06 total sulfur containing coal (3.55% inorganic sulfur), sulphurane 15.02% and ash 19.45% were removed 58.16% with combustible yields (90 G centrifugal force, 1.6 lt/min water flow and 0.150 mm particle size).

Anahtar Kelimeler

• Coal,Desulfurization,Deashing,Knelson Concentrator,Operation parameters

KÖMÜRDEN İNORGANİK KÜKÜRT VE KÜL UZAKLAŞTIRMADA KNELSON KONSANTRATOR ÇALIŞMA PARAMETRELERİNİN ETKİSİ

Öz

Özellikle çok ince boyutlarda serbestleşen altın kazanımı için geliştirilen Knelson Konsantratör, son zamanlarda birçok cevherin zenginleştirilmesinde kullanılmaktadır. Knelson konsantratör santrifüj kuvvet ve yoğunluk farkından yararlanarak ayırma yapan bir cihazdır. Bu çalışmada, kömürde bulunan ve çevresel sorunlara neden olan çok ince boyutta serbestleşen kükürt ve kül oluşturan mineral maddenin uzaklaştırılmasında Knelson Konsantratör kullanılmıştır. Knelson Konsantratör çalışma parametrelerinin (santrifüj kuvvet, su debisi ve tane boyutu) inorganik kükürt ve kül uzaklaştırmaya olan etkileri araştırılmıştır. Hem inorganik kükürt hem de kül uzaklaştırmada etkili olduğu belirlenmiştir.  %7,06 toplam kükürt içeren kömürden (%3,55 inorganik kükürt bulunmakta), kükürdün %15,02’si, külün ise %19,45’i uzaklaştırılarak %58,16 yanabilir verimle temiz kömür (90 G santrifüj kuvvet, 1,6 lt/dak su debisi, 0,150 mm tane boyutu çalışma koşullarında) elde edilmiştir. 

Anahtar Kelimeler

• Kömür,Kükürt uzaklaştırma,kül uzaklaştırma,çalışma parametresi

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