FENG Lai-hong;ZHOU Rui-tong(Baode Coal Preparation Plant;

• 1:Preparation Center of Shendong Coal Group Co.
• 2:Ltd.
• 3:Baode 036600
• 4:China)

Abstract：

The screenbowl centrifuge applied in North Baode coal preparation plant was suitable for +0.045 mm coarse slime treatment,while some-0.045 mm fine slime fed into the creenbowl centrifuge due to the changed slime water treatment method.Some fine slime circulated and gathered in system,lowered the slime water quality.To resolve this problem,the plant combined hydro-cyclone with spiral separator,narrow the pore size of 363,364 sieve bend to 0.15 mm.To reduce the transformation cost,the plant insists on using the original equipments,just feed the light products of spiral into the screenbowl centrifuge.The working condition of screenbowl centrifuge is improved by changing the size composition of coarse slime.This transformation make the coarse recovery system more suitable for practical coal quality and needed products structure.

Key Words： Baode coal preparation plant;coarse slime;screenbowl centrifuge

Abstract:

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Foundation:

Author: FENG Lai-hong;ZHOU Rui-tong(Baode Coal Preparation Plant;

DOI: 10.13226/j.issn.1006-6772.2013.02.021

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