EFFECT OF KNELSON CONCENTRATOR OPERATION PARAMETERS ON COAL DESULFURIZATION AND DEASHING

Year 2018, Issue: 041, 35 - 47, 16.12.2018

Uğur Demir

Abstract

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).

Keywords

Coal, Desulfurization, Deashing, Knelson Concentrator, Operation parameters

KÖMÜRDEN İNORGANİK KÜKÜRT VE KÜL UZAKLAŞTIRMADA KNELSON KONSANTRATOR ÇALIŞMA PARAMETRELERİNİN ETKİSİ

Abstract

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. 

Keywords

Kömür, Kükürt uzaklaştırma, kül uzaklaştırma, çalışma parametresi

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