The production technology of coal preparation plant of 6th well in Meihe Mine;

Cleaner production assessment model of coal preparation plant;

PLC networks control system of production line in the coal separation plants;

The paper presents a more detailed discussion of the significance and present situation of coal separation and the latest development of air heavy medium fluidized bed coal separation technology.

With the development of mechanization of coal exploiting and reducing of high quality coal, the heavy medium coal separation is playing more and more role in coal preparation technology, resulting from its high degree separation accuracy, easy-operation, wide density regulating rang and high efficiency and so on.

The screening workshop,breaking preparement workshop,drying workshop are the place of dust concentrating in the preparation plant.

The application in many preparation plants has proved the noticeable economic and social benefits it can obtain.

The paper introduces it use such methods as capture noise abatement, acoustic septum, acoustic enclosure, damping vibration attenuation, wall noise reduction by absorption and etc for the main preparation plant workshops of the scond lining Coal Mine.

Research and practice of process for slime water treatment at a coal preparation plant;

Discussion on electric energy conservation in design of a coal preparation plant;

Probing into technological design of crushing classification jigging coal washing in Hongyang coal preparation plant;